diff --git a/services/real-time/.dockerignore b/services/real-time/.dockerignore
new file mode 100644
index 0000000000..ba1c3442de
--- /dev/null
+++ b/services/real-time/.dockerignore
@@ -0,0 +1,7 @@
+node_modules/*
+gitrev
+.git
+.gitignore
+.npm
+.nvmrc
+nodemon.json
diff --git a/services/real-time/.eslintrc b/services/real-time/.eslintrc
new file mode 100644
index 0000000000..a97661b15f
--- /dev/null
+++ b/services/real-time/.eslintrc
@@ -0,0 +1,86 @@
+// this file was auto-generated, do not edit it directly.
+// instead run bin/update_build_scripts from
+// https://github.com/sharelatex/sharelatex-dev-environment
+{
+ "extends": [
+ "eslint:recommended",
+ "standard",
+ "prettier"
+ ],
+ "parserOptions": {
+ "ecmaVersion": 2018
+ },
+ "plugins": [
+ "mocha",
+ "chai-expect",
+ "chai-friendly"
+ ],
+ "env": {
+ "node": true,
+ "mocha": true
+ },
+ "rules": {
+ // TODO(das7pad): remove overrides after fixing all the violations manually (https://github.com/overleaf/issues/issues/3882#issuecomment-878999671)
+ // START of temporary overrides
+ "array-callback-return": "off",
+ "no-dupe-else-if": "off",
+ "no-var": "off",
+ "no-empty": "off",
+ "node/handle-callback-err": "off",
+ "no-loss-of-precision": "off",
+ "node/no-callback-literal": "off",
+ "node/no-path-concat": "off",
+ "prefer-regex-literals": "off",
+ // END of temporary overrides
+
+ // Swap the no-unused-expressions rule with a more chai-friendly one
+ "no-unused-expressions": 0,
+ "chai-friendly/no-unused-expressions": "error",
+
+ // Do not allow importing of implicit dependencies.
+ "import/no-extraneous-dependencies": "error"
+ },
+ "overrides": [
+ {
+ // Test specific rules
+ "files": ["test/**/*.js"],
+ "globals": {
+ "expect": true
+ },
+ "rules": {
+ // mocha-specific rules
+ "mocha/handle-done-callback": "error",
+ "mocha/no-exclusive-tests": "error",
+ "mocha/no-global-tests": "error",
+ "mocha/no-identical-title": "error",
+ "mocha/no-nested-tests": "error",
+ "mocha/no-pending-tests": "error",
+ "mocha/no-skipped-tests": "error",
+ "mocha/no-mocha-arrows": "error",
+
+ // chai-specific rules
+ "chai-expect/missing-assertion": "error",
+ "chai-expect/terminating-properties": "error",
+
+ // prefer-arrow-callback applies to all callbacks, not just ones in mocha tests.
+ // we don't enforce this at the top-level - just in tests to manage `this` scope
+ // based on mocha's context mechanism
+ "mocha/prefer-arrow-callback": "error"
+ }
+ },
+ {
+ // Backend specific rules
+ "files": ["app/**/*.js", "app.js", "index.js"],
+ "rules": {
+ // don't allow console.log in backend code
+ "no-console": "error",
+
+ // Do not allow importing of implicit dependencies.
+ "import/no-extraneous-dependencies": ["error", {
+ // Do not allow importing of devDependencies.
+ "devDependencies": false
+ }]
+ }
+ }
+ ]
+}
diff --git a/services/real-time/.github/ISSUE_TEMPLATE.md b/services/real-time/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000000..e0093aa90c
--- /dev/null
+++ b/services/real-time/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,38 @@
+
+
+## Steps to Reproduce
+
+
+
+1.
+2.
+3.
+
+## Expected Behaviour
+
+
+## Observed Behaviour
+
+
+
+## Context
+
+
+## Technical Info
+
+
+* URL:
+* Browser Name and version:
+* Operating System and version (desktop or mobile):
+* Signed in as:
+* Project and/or file:
+
+## Analysis
+
+
+## Who Needs to Know?
+
+
+
+-
+-
diff --git a/services/real-time/.github/PULL_REQUEST_TEMPLATE.md b/services/real-time/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000000..12bb2eeb3f
--- /dev/null
+++ b/services/real-time/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,48 @@
+
+
+
+
+
+### Description
+
+
+
+#### Screenshots
+
+
+
+#### Related Issues / PRs
+
+
+
+### Review
+
+
+
+#### Potential Impact
+
+
+
+#### Manual Testing Performed
+
+- [ ]
+- [ ]
+
+#### Accessibility
+
+
+
+### Deployment
+
+
+
+#### Deployment Checklist
+
+- [ ] Update documentation not included in the PR (if any)
+- [ ]
+
+#### Metrics and Monitoring
+
+
+
+#### Who Needs to Know?
diff --git a/services/real-time/.github/dependabot.yml b/services/real-time/.github/dependabot.yml
new file mode 100644
index 0000000000..c856753655
--- /dev/null
+++ b/services/real-time/.github/dependabot.yml
@@ -0,0 +1,23 @@
+version: 2
+updates:
+ - package-ecosystem: "npm"
+ directory: "/"
+ schedule:
+ interval: "daily"
+
+ pull-request-branch-name:
+ # Separate sections of the branch name with a hyphen
+ # Docker images use the branch name and do not support slashes in tags
+ # https://github.com/overleaf/google-ops/issues/822
+ # https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#pull-request-branch-nameseparator
+ separator: "-"
+
+ # Block informal upgrades -- security upgrades use a separate queue.
+ # https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#open-pull-requests-limit
+ open-pull-requests-limit: 0
+
+ # currently assign team-magma to all dependabot PRs - this may change in
+ # future if we reorganise teams
+ labels:
+ - "dependencies"
+ - "type:maintenance"
diff --git a/services/real-time/.gitignore b/services/real-time/.gitignore
new file mode 100644
index 0000000000..80bac793a7
--- /dev/null
+++ b/services/real-time/.gitignore
@@ -0,0 +1,5 @@
+node_modules
+forever
+
+# managed by dev-environment$ bin/update_build_scripts
+.npmrc
diff --git a/services/real-time/.mocharc.json b/services/real-time/.mocharc.json
new file mode 100644
index 0000000000..dc3280aa96
--- /dev/null
+++ b/services/real-time/.mocharc.json
@@ -0,0 +1,3 @@
+{
+ "require": "test/setup.js"
+}
diff --git a/services/real-time/.nvmrc b/services/real-time/.nvmrc
new file mode 100644
index 0000000000..5a80a7e912
--- /dev/null
+++ b/services/real-time/.nvmrc
@@ -0,0 +1 @@
+12.22.3
diff --git a/services/real-time/.prettierrc b/services/real-time/.prettierrc
new file mode 100644
index 0000000000..c92c3526e7
--- /dev/null
+++ b/services/real-time/.prettierrc
@@ -0,0 +1,11 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/sharelatex/sharelatex-dev-environment
+{
+ "arrowParens": "avoid",
+ "semi": false,
+ "singleQuote": true,
+ "trailingComma": "es5",
+ "tabWidth": 2,
+ "useTabs": false
+}
diff --git a/services/real-time/Dockerfile b/services/real-time/Dockerfile
new file mode 100644
index 0000000000..6b286376dc
--- /dev/null
+++ b/services/real-time/Dockerfile
@@ -0,0 +1,23 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/sharelatex/sharelatex-dev-environment
+
+FROM node:12.22.3 as base
+
+WORKDIR /app
+
+FROM base as app
+
+#wildcard as some files may not be in all repos
+COPY package*.json npm-shrink*.json /app/
+
+RUN npm ci --quiet
+
+COPY . /app
+
+FROM base
+
+COPY --from=app /app /app
+USER node
+
+CMD ["node", "--expose-gc", "app.js"]
diff --git a/services/real-time/LICENSE b/services/real-time/LICENSE
new file mode 100644
index 0000000000..dba13ed2dd
--- /dev/null
+++ b/services/real-time/LICENSE
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
+ Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+ A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate. Many developers of free software are heartened and
+encouraged by the resulting cooperation. However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+ The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community. It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server. Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+ An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals. This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU Affero General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
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+in a fashion requiring copyright permission, other than the making of an
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+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
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+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
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+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
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+the interface presents a list of user commands or options, such as a
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+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
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+same work.
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+unpacking, reading or copying.
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+ 7. Additional Terms.
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+ "Additional permissions" are terms that supplement the terms of this
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+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Remote Network Interaction; Use with the GNU General Public License.
+
+ Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software. This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+.
diff --git a/services/real-time/Makefile b/services/real-time/Makefile
new file mode 100644
index 0000000000..9e065f2220
--- /dev/null
+++ b/services/real-time/Makefile
@@ -0,0 +1,90 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/sharelatex/sharelatex-dev-environment
+
+BUILD_NUMBER ?= local
+BRANCH_NAME ?= $(shell git rev-parse --abbrev-ref HEAD)
+PROJECT_NAME = real-time
+BUILD_DIR_NAME = $(shell pwd | xargs basename | tr -cd '[a-zA-Z0-9_.\-]')
+
+DOCKER_COMPOSE_FLAGS ?= -f docker-compose.yml
+DOCKER_COMPOSE := BUILD_NUMBER=$(BUILD_NUMBER) \
+ BRANCH_NAME=$(BRANCH_NAME) \
+ PROJECT_NAME=$(PROJECT_NAME) \
+ MOCHA_GREP=${MOCHA_GREP} \
+ docker-compose ${DOCKER_COMPOSE_FLAGS}
+
+DOCKER_COMPOSE_TEST_ACCEPTANCE = \
+ COMPOSE_PROJECT_NAME=test_acceptance_$(BUILD_DIR_NAME) $(DOCKER_COMPOSE)
+
+DOCKER_COMPOSE_TEST_UNIT = \
+ COMPOSE_PROJECT_NAME=test_unit_$(BUILD_DIR_NAME) $(DOCKER_COMPOSE)
+
+clean:
+ -docker rmi ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+ -docker rmi gcr.io/overleaf-ops/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+ -$(DOCKER_COMPOSE_TEST_UNIT) down --rmi local
+ -$(DOCKER_COMPOSE_TEST_ACCEPTANCE) down --rmi local
+
+format:
+ $(DOCKER_COMPOSE) run --rm test_unit npm run --silent format
+
+format_fix:
+ $(DOCKER_COMPOSE) run --rm test_unit npm run --silent format:fix
+
+lint:
+ $(DOCKER_COMPOSE) run --rm test_unit npm run --silent lint
+
+test: format lint test_unit test_acceptance
+
+test_unit:
+ifneq (,$(wildcard test/unit))
+ $(DOCKER_COMPOSE_TEST_UNIT) run --rm test_unit
+ $(MAKE) test_unit_clean
+endif
+
+test_clean: test_unit_clean
+test_unit_clean:
+ifneq (,$(wildcard test/unit))
+ $(DOCKER_COMPOSE_TEST_UNIT) down -v -t 0
+endif
+
+test_acceptance: test_acceptance_clean test_acceptance_pre_run test_acceptance_run
+ $(MAKE) test_acceptance_clean
+
+test_acceptance_debug: test_acceptance_clean test_acceptance_pre_run test_acceptance_run_debug
+ $(MAKE) test_acceptance_clean
+
+test_acceptance_run:
+ifneq (,$(wildcard test/acceptance))
+ $(DOCKER_COMPOSE_TEST_ACCEPTANCE) run --rm test_acceptance
+endif
+
+test_acceptance_run_debug:
+ifneq (,$(wildcard test/acceptance))
+ $(DOCKER_COMPOSE_TEST_ACCEPTANCE) run -p 127.0.0.9:19999:19999 --rm test_acceptance npm run test:acceptance -- --inspect=0.0.0.0:19999 --inspect-brk
+endif
+
+test_clean: test_acceptance_clean
+test_acceptance_clean:
+ $(DOCKER_COMPOSE_TEST_ACCEPTANCE) down -v -t 0
+
+test_acceptance_pre_run:
+ifneq (,$(wildcard test/acceptance/js/scripts/pre-run))
+ $(DOCKER_COMPOSE_TEST_ACCEPTANCE) run --rm test_acceptance test/acceptance/js/scripts/pre-run
+endif
+
+build:
+ docker build --pull --tag ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) \
+ --tag gcr.io/overleaf-ops/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) \
+ .
+
+tar:
+ $(DOCKER_COMPOSE) up tar
+
+publish:
+
+ docker push $(DOCKER_REPO)/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+
+
+.PHONY: clean test test_unit test_acceptance test_clean build publish
diff --git a/services/real-time/app.js b/services/real-time/app.js
new file mode 100644
index 0000000000..31216bb07e
--- /dev/null
+++ b/services/real-time/app.js
@@ -0,0 +1,288 @@
+const Metrics = require('@overleaf/metrics')
+const Settings = require('@overleaf/settings')
+Metrics.initialize(Settings.appName || 'real-time')
+const async = require('async')
+
+const logger = require('logger-sharelatex')
+logger.initialize('real-time')
+Metrics.event_loop.monitor(logger)
+
+const express = require('express')
+const session = require('express-session')
+const redis = require('@overleaf/redis-wrapper')
+if (Settings.sentry && Settings.sentry.dsn) {
+ logger.initializeErrorReporting(Settings.sentry.dsn)
+}
+
+const sessionRedisClient = redis.createClient(Settings.redis.websessions)
+
+const RedisStore = require('connect-redis')(session)
+const SessionSockets = require('./app/js/SessionSockets')
+const CookieParser = require('cookie-parser')
+
+const DrainManager = require('./app/js/DrainManager')
+const HealthCheckManager = require('./app/js/HealthCheckManager')
+const DeploymentManager = require('./app/js/DeploymentManager')
+
+// NOTE: debug is invoked for every blob that is put on the wire
+const socketIoLogger = {
+ error(...message) {
+ logger.info({ fromSocketIo: true, originalLevel: 'error' }, ...message)
+ },
+ warn(...message) {
+ logger.info({ fromSocketIo: true, originalLevel: 'warn' }, ...message)
+ },
+ info() {},
+ debug() {},
+ log() {},
+}
+
+// monitor status file to take dark deployments out of the load-balancer
+DeploymentManager.initialise()
+
+// Set up socket.io server
+const app = express()
+
+const server = require('http').createServer(app)
+const io = require('socket.io').listen(server, {
+ logger: socketIoLogger,
+})
+
+// Bind to sessions
+const sessionStore = new RedisStore({ client: sessionRedisClient })
+const cookieParser = CookieParser(Settings.security.sessionSecret)
+
+const sessionSockets = new SessionSockets(
+ io,
+ sessionStore,
+ cookieParser,
+ Settings.cookieName
+)
+
+Metrics.injectMetricsRoute(app)
+app.use(Metrics.http.monitor(logger))
+
+io.configure(function () {
+ io.enable('browser client minification')
+ io.enable('browser client etag')
+
+ // Fix for Safari 5 error of "Error during WebSocket handshake: location mismatch"
+ // See http://answers.dotcloud.com/question/578/problem-with-websocket-over-ssl-in-safari-with
+ io.set('match origin protocol', true)
+
+ // gzip uses a Node 0.8.x method of calling the gzip program which
+ // doesn't work with 0.6.x
+ // io.enable('browser client gzip')
+ io.set('transports', [
+ 'websocket',
+ 'flashsocket',
+ 'htmlfile',
+ 'xhr-polling',
+ 'jsonp-polling',
+ ])
+})
+
+// a 200 response on '/' is required for load balancer health checks
+// these operate separately from kubernetes readiness checks
+app.get('/', function (req, res) {
+ if (Settings.shutDownInProgress || DeploymentManager.deploymentIsClosed()) {
+ res.sendStatus(503) // Service unavailable
+ } else {
+ res.send('real-time is open')
+ }
+})
+
+app.get('/status', function (req, res) {
+ if (Settings.shutDownInProgress) {
+ res.sendStatus(503) // Service unavailable
+ } else {
+ res.send('real-time is alive')
+ }
+})
+
+app.get('/debug/events', function (req, res) {
+ Settings.debugEvents = parseInt(req.query.count, 10) || 20
+ logger.log({ count: Settings.debugEvents }, 'starting debug mode')
+ res.send(`debug mode will log next ${Settings.debugEvents} events`)
+})
+
+const rclient = require('@overleaf/redis-wrapper').createClient(
+ Settings.redis.realtime
+)
+
+function healthCheck(req, res) {
+ rclient.healthCheck(function (error) {
+ if (error) {
+ logger.err({ err: error }, 'failed redis health check')
+ res.sendStatus(500)
+ } else if (HealthCheckManager.isFailing()) {
+ const status = HealthCheckManager.status()
+ logger.err({ pubSubErrors: status }, 'failed pubsub health check')
+ res.sendStatus(500)
+ } else {
+ res.sendStatus(200)
+ }
+ })
+}
+app.get(
+ '/health_check',
+ (req, res, next) => {
+ if (Settings.shutDownComplete) {
+ return res.sendStatus(503)
+ }
+ next()
+ },
+ healthCheck
+)
+
+app.get('/health_check/redis', healthCheck)
+
+const Router = require('./app/js/Router')
+Router.configure(app, io, sessionSockets)
+
+const WebsocketLoadBalancer = require('./app/js/WebsocketLoadBalancer')
+WebsocketLoadBalancer.listenForEditorEvents(io)
+
+const DocumentUpdaterController = require('./app/js/DocumentUpdaterController')
+DocumentUpdaterController.listenForUpdatesFromDocumentUpdater(io)
+
+const { port } = Settings.internal.realTime
+const { host } = Settings.internal.realTime
+
+server.listen(port, host, function (error) {
+ if (error) {
+ throw error
+ }
+ logger.info(`realtime starting up, listening on ${host}:${port}`)
+})
+
+// Stop huge stack traces in logs from all the socket.io parsing steps.
+Error.stackTraceLimit = 10
+
+function shutdownCleanly(signal) {
+ const connectedClients = io.sockets.clients().length
+ if (connectedClients === 0) {
+ logger.warn('no clients connected, exiting')
+ process.exit()
+ } else {
+ logger.warn(
+ { connectedClients },
+ 'clients still connected, not shutting down yet'
+ )
+ setTimeout(() => shutdownCleanly(signal), 30 * 1000)
+ }
+}
+
+function drainAndShutdown(signal) {
+ if (Settings.shutDownInProgress) {
+ logger.warn({ signal }, 'shutdown already in progress, ignoring signal')
+ } else {
+ Settings.shutDownInProgress = true
+ const { statusCheckInterval } = Settings
+ if (statusCheckInterval) {
+ logger.warn(
+ { signal },
+ `received interrupt, delay drain by ${statusCheckInterval}ms`
+ )
+ }
+ setTimeout(function () {
+ logger.warn(
+ { signal },
+ `received interrupt, starting drain over ${shutdownDrainTimeWindow} mins`
+ )
+ DrainManager.startDrainTimeWindow(io, shutdownDrainTimeWindow, () => {
+ setTimeout(() => {
+ const staleClients = io.sockets.clients()
+ if (staleClients.length !== 0) {
+ logger.warn(
+ { staleClients: staleClients.map(client => client.id) },
+ 'forcefully disconnecting stale clients'
+ )
+ staleClients.forEach(client => {
+ client.disconnect()
+ })
+ }
+ // Mark the node as unhealthy.
+ Settings.shutDownComplete = true
+ }, Settings.gracefulReconnectTimeoutMs)
+ })
+ shutdownCleanly(signal)
+ }, statusCheckInterval)
+ }
+}
+
+Settings.shutDownInProgress = false
+const shutdownDrainTimeWindow = parseInt(Settings.shutdownDrainTimeWindow, 10)
+if (Settings.shutdownDrainTimeWindow) {
+ logger.log({ shutdownDrainTimeWindow }, 'shutdownDrainTimeWindow enabled')
+ for (const signal of [
+ 'SIGINT',
+ 'SIGHUP',
+ 'SIGQUIT',
+ 'SIGUSR1',
+ 'SIGUSR2',
+ 'SIGTERM',
+ 'SIGABRT',
+ ]) {
+ process.on(signal, drainAndShutdown)
+ } // signal is passed as argument to event handler
+
+ // global exception handler
+ if (Settings.errors && Settings.errors.catchUncaughtErrors) {
+ process.removeAllListeners('uncaughtException')
+ process.on('uncaughtException', function (error) {
+ if (
+ [
+ 'ETIMEDOUT',
+ 'EHOSTUNREACH',
+ 'EPIPE',
+ 'ECONNRESET',
+ 'ERR_STREAM_WRITE_AFTER_END',
+ ].includes(error.code)
+ ) {
+ Metrics.inc('disconnected_write', 1, { status: error.code })
+ return logger.warn(
+ { err: error },
+ 'attempted to write to disconnected client'
+ )
+ }
+ logger.error({ err: error }, 'uncaught exception')
+ if (Settings.errors && Settings.errors.shutdownOnUncaughtError) {
+ drainAndShutdown('SIGABRT')
+ }
+ })
+ }
+}
+
+if (Settings.continualPubsubTraffic) {
+ logger.warn('continualPubsubTraffic enabled')
+
+ const pubsubClient = redis.createClient(Settings.redis.pubsub)
+ const clusterClient = redis.createClient(Settings.redis.websessions)
+
+ const publishJob = function (channel, callback) {
+ const checker = new HealthCheckManager(channel)
+ logger.debug({ channel }, 'sending pub to keep connection alive')
+ const json = JSON.stringify({
+ health_check: true,
+ key: checker.id,
+ date: new Date().toString(),
+ })
+ Metrics.summary(`redis.publish.${channel}`, json.length)
+ pubsubClient.publish(channel, json, function (err) {
+ if (err) {
+ logger.err({ err, channel }, 'error publishing pubsub traffic to redis')
+ }
+ const blob = JSON.stringify({ keep: 'alive' })
+ Metrics.summary('redis.publish.cluster-continual-traffic', blob.length)
+ clusterClient.publish('cluster-continual-traffic', blob, callback)
+ })
+ }
+
+ const runPubSubTraffic = () =>
+ async.map(['applied-ops', 'editor-events'], publishJob, () =>
+ setTimeout(runPubSubTraffic, 1000 * 20)
+ )
+
+ runPubSubTraffic()
+}
diff --git a/services/real-time/app/js/AuthorizationManager.js b/services/real-time/app/js/AuthorizationManager.js
new file mode 100644
index 0000000000..4b48ed0e8c
--- /dev/null
+++ b/services/real-time/app/js/AuthorizationManager.js
@@ -0,0 +1,67 @@
+/* eslint-disable
+ camelcase,
+*/
+const { NotAuthorizedError } = require('./Errors')
+
+let AuthorizationManager
+module.exports = AuthorizationManager = {
+ assertClientCanViewProject(client, callback) {
+ AuthorizationManager._assertClientHasPrivilegeLevel(
+ client,
+ ['readOnly', 'readAndWrite', 'owner'],
+ callback
+ )
+ },
+
+ assertClientCanEditProject(client, callback) {
+ AuthorizationManager._assertClientHasPrivilegeLevel(
+ client,
+ ['readAndWrite', 'owner'],
+ callback
+ )
+ },
+
+ _assertClientHasPrivilegeLevel(client, allowedLevels, callback) {
+ if (allowedLevels.includes(client.ol_context.privilege_level)) {
+ callback(null)
+ } else {
+ callback(new NotAuthorizedError())
+ }
+ },
+
+ assertClientCanViewProjectAndDoc(client, doc_id, callback) {
+ AuthorizationManager.assertClientCanViewProject(client, function (error) {
+ if (error) {
+ return callback(error)
+ }
+ AuthorizationManager._assertClientCanAccessDoc(client, doc_id, callback)
+ })
+ },
+
+ assertClientCanEditProjectAndDoc(client, doc_id, callback) {
+ AuthorizationManager.assertClientCanEditProject(client, function (error) {
+ if (error) {
+ return callback(error)
+ }
+ AuthorizationManager._assertClientCanAccessDoc(client, doc_id, callback)
+ })
+ },
+
+ _assertClientCanAccessDoc(client, doc_id, callback) {
+ if (client.ol_context[`doc:${doc_id}`] === 'allowed') {
+ callback(null)
+ } else {
+ callback(new NotAuthorizedError())
+ }
+ },
+
+ addAccessToDoc(client, doc_id, callback) {
+ client.ol_context[`doc:${doc_id}`] = 'allowed'
+ callback(null)
+ },
+
+ removeAccessToDoc(client, doc_id, callback) {
+ delete client.ol_context[`doc:${doc_id}`]
+ callback(null)
+ },
+}
diff --git a/services/real-time/app/js/ChannelManager.js b/services/real-time/app/js/ChannelManager.js
new file mode 100644
index 0000000000..81caa7dd83
--- /dev/null
+++ b/services/real-time/app/js/ChannelManager.js
@@ -0,0 +1,101 @@
+const logger = require('logger-sharelatex')
+const metrics = require('@overleaf/metrics')
+const settings = require('@overleaf/settings')
+const OError = require('@overleaf/o-error')
+
+const ClientMap = new Map() // for each redis client, store a Map of subscribed channels (channelname -> subscribe promise)
+
+// Manage redis pubsub subscriptions for individual projects and docs, ensuring
+// that we never subscribe to a channel multiple times. The socket.io side is
+// handled by RoomManager.
+
+module.exports = {
+ getClientMapEntry(rclient) {
+ // return the per-client channel map if it exists, otherwise create and
+ // return an empty map for the client.
+ return (
+ ClientMap.get(rclient) || ClientMap.set(rclient, new Map()).get(rclient)
+ )
+ },
+
+ subscribe(rclient, baseChannel, id) {
+ const clientChannelMap = this.getClientMapEntry(rclient)
+ const channel = `${baseChannel}:${id}`
+ const actualSubscribe = function () {
+ // subscribe is happening in the foreground and it should reject
+ return rclient
+ .subscribe(channel)
+ .finally(function () {
+ if (clientChannelMap.get(channel) === subscribePromise) {
+ clientChannelMap.delete(channel)
+ }
+ })
+ .then(function () {
+ logger.log({ channel }, 'subscribed to channel')
+ metrics.inc(`subscribe.${baseChannel}`)
+ })
+ .catch(function (err) {
+ logger.error({ channel, err }, 'failed to subscribe to channel')
+ metrics.inc(`subscribe.failed.${baseChannel}`)
+ // add context for the stack-trace at the call-site
+ throw new OError('failed to subscribe to channel', {
+ channel,
+ }).withCause(err)
+ })
+ }
+
+ const pendingActions = clientChannelMap.get(channel) || Promise.resolve()
+ const subscribePromise = pendingActions.then(
+ actualSubscribe,
+ actualSubscribe
+ )
+ clientChannelMap.set(channel, subscribePromise)
+ logger.log({ channel }, 'planned to subscribe to channel')
+ return subscribePromise
+ },
+
+ unsubscribe(rclient, baseChannel, id) {
+ const clientChannelMap = this.getClientMapEntry(rclient)
+ const channel = `${baseChannel}:${id}`
+ const actualUnsubscribe = function () {
+ // unsubscribe is happening in the background, it should not reject
+ return rclient
+ .unsubscribe(channel)
+ .finally(function () {
+ if (clientChannelMap.get(channel) === unsubscribePromise) {
+ clientChannelMap.delete(channel)
+ }
+ })
+ .then(function () {
+ logger.log({ channel }, 'unsubscribed from channel')
+ metrics.inc(`unsubscribe.${baseChannel}`)
+ })
+ .catch(function (err) {
+ logger.error({ channel, err }, 'unsubscribed from channel')
+ metrics.inc(`unsubscribe.failed.${baseChannel}`)
+ })
+ }
+
+ const pendingActions = clientChannelMap.get(channel) || Promise.resolve()
+ const unsubscribePromise = pendingActions.then(
+ actualUnsubscribe,
+ actualUnsubscribe
+ )
+ clientChannelMap.set(channel, unsubscribePromise)
+ logger.log({ channel }, 'planned to unsubscribe from channel')
+ return unsubscribePromise
+ },
+
+ publish(rclient, baseChannel, id, data) {
+ let channel
+ metrics.summary(`redis.publish.${baseChannel}`, data.length)
+ if (id === 'all' || !settings.publishOnIndividualChannels) {
+ channel = baseChannel
+ } else {
+ channel = `${baseChannel}:${id}`
+ }
+ // we publish on a different client to the subscribe, so we can't
+ // check for the channel existing here
+ rclient.publish(channel, data)
+ },
+}
diff --git a/services/real-time/app/js/ConnectedUsersManager.js b/services/real-time/app/js/ConnectedUsersManager.js
new file mode 100644
index 0000000000..f8dd40fd6a
--- /dev/null
+++ b/services/real-time/app/js/ConnectedUsersManager.js
@@ -0,0 +1,176 @@
+/* eslint-disable
+ camelcase,
+*/
+const async = require('async')
+const Settings = require('@overleaf/settings')
+const logger = require('logger-sharelatex')
+const redis = require('@overleaf/redis-wrapper')
+const OError = require('@overleaf/o-error')
+const rclient = redis.createClient(Settings.redis.realtime)
+const Keys = Settings.redis.realtime.key_schema
+
+const ONE_HOUR_IN_S = 60 * 60
+const ONE_DAY_IN_S = ONE_HOUR_IN_S * 24
+const FOUR_DAYS_IN_S = ONE_DAY_IN_S * 4
+
+const USER_TIMEOUT_IN_S = ONE_HOUR_IN_S / 4
+const REFRESH_TIMEOUT_IN_S = 10 // only show clients which have responded to a refresh request in the last 10 seconds
+
+module.exports = {
+ // Use the same method for when a user connects, and when a user sends a cursor
+ // update. This way we don't care if the connected_user key has expired when
+ // we receive a cursor update.
+ updateUserPosition(project_id, client_id, user, cursorData, callback) {
+ logger.log({ project_id, client_id }, 'marking user as joined or connected')
+
+ const multi = rclient.multi()
+
+ multi.sadd(Keys.clientsInProject({ project_id }), client_id)
+ multi.expire(Keys.clientsInProject({ project_id }), FOUR_DAYS_IN_S)
+
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'last_updated_at',
+ Date.now()
+ )
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'user_id',
+ user._id
+ )
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'first_name',
+ user.first_name || ''
+ )
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'last_name',
+ user.last_name || ''
+ )
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'email',
+ user.email || ''
+ )
+
+ if (cursorData) {
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'cursorData',
+ JSON.stringify(cursorData)
+ )
+ }
+ multi.expire(
+ Keys.connectedUser({ project_id, client_id }),
+ USER_TIMEOUT_IN_S
+ )
+
+ multi.exec(function (err) {
+ if (err) {
+ err = new OError('problem marking user as connected').withCause(err)
+ }
+ callback(err)
+ })
+ },
+
+ refreshClient(project_id, client_id) {
+ logger.log({ project_id, client_id }, 'refreshing connected client')
+ const multi = rclient.multi()
+ multi.hset(
+ Keys.connectedUser({ project_id, client_id }),
+ 'last_updated_at',
+ Date.now()
+ )
+ multi.expire(
+ Keys.connectedUser({ project_id, client_id }),
+ USER_TIMEOUT_IN_S
+ )
+ multi.exec(function (err) {
+ if (err) {
+ logger.err(
+ { err, project_id, client_id },
+ 'problem refreshing connected client'
+ )
+ }
+ })
+ },
+
+ markUserAsDisconnected(project_id, client_id, callback) {
+ logger.log({ project_id, client_id }, 'marking user as disconnected')
+ const multi = rclient.multi()
+ multi.srem(Keys.clientsInProject({ project_id }), client_id)
+ multi.expire(Keys.clientsInProject({ project_id }), FOUR_DAYS_IN_S)
+ multi.del(Keys.connectedUser({ project_id, client_id }))
+ multi.exec(function (err) {
+ if (err) {
+ err = new OError('problem marking user as disconnected').withCause(err)
+ }
+ callback(err)
+ })
+ },
+
+ _getConnectedUser(project_id, client_id, callback) {
+ rclient.hgetall(
+ Keys.connectedUser({ project_id, client_id }),
+ function (err, result) {
+ if (err) {
+ err = new OError('problem fetching connected user details', {
+ other_client_id: client_id,
+ }).withCause(err)
+ return callback(err)
+ }
+ if (!(result && result.user_id)) {
+ result = {
+ connected: false,
+ client_id,
+ }
+ } else {
+ result.connected = true
+ result.client_id = client_id
+ result.client_age =
+ (Date.now() - parseInt(result.last_updated_at, 10)) / 1000
+ if (result.cursorData) {
+ try {
+ result.cursorData = JSON.parse(result.cursorData)
+ } catch (e) {
+ OError.tag(e, 'error parsing cursorData JSON', {
+ other_client_id: client_id,
+ cursorData: result.cursorData,
+ })
+ return callback(e)
+ }
+ }
+ }
+ callback(err, result)
+ }
+ )
+ },
+
+ getConnectedUsers(project_id, callback) {
+ const self = this
+ rclient.smembers(
+ Keys.clientsInProject({ project_id }),
+ function (err, results) {
+ if (err) {
+ err = new OError('problem getting clients in project').withCause(err)
+ return callback(err)
+ }
+ const jobs = results.map(
+ client_id => cb => self._getConnectedUser(project_id, client_id, cb)
+ )
+ async.series(jobs, function (err, users) {
+ if (err) {
+ OError.tag(err, 'problem getting connected users')
+ return callback(err)
+ }
+ users = users.filter(
+ user =>
+ user && user.connected && user.client_age < REFRESH_TIMEOUT_IN_S
+ )
+ callback(null, users)
+ })
+ }
+ )
+ },
+}
diff --git a/services/real-time/app/js/DeploymentManager.js b/services/real-time/app/js/DeploymentManager.js
new file mode 100644
index 0000000000..0e6b2a7f05
--- /dev/null
+++ b/services/real-time/app/js/DeploymentManager.js
@@ -0,0 +1,59 @@
+const logger = require('logger-sharelatex')
+const settings = require('@overleaf/settings')
+const fs = require('fs')
+
+// Monitor a status file (e.g. /etc/real_time_status) periodically and close the
+// service if the file contents don't contain the matching deployment colour.
+
+const FILE_CHECK_INTERVAL = 5000
+const statusFile = settings.deploymentFile
+const deploymentColour = settings.deploymentColour
+
+let serviceCloseTime
+
+function updateDeploymentStatus(fileContent) {
+ const closed = fileContent && !fileContent.includes(deploymentColour)
+ if (closed && !settings.serviceIsClosed) {
+ settings.serviceIsClosed = true
+ serviceCloseTime = Date.now() + 60 * 1000 // delay closing by 1 minute
+ logger.warn({ fileContent }, 'closing service')
+ } else if (!closed && settings.serviceIsClosed) {
+ settings.serviceIsClosed = false
+ logger.warn({ fileContent }, 'opening service')
+ }
+}
+
+function pollStatusFile() {
+ fs.readFile(statusFile, { encoding: 'utf8' }, (err, fileContent) => {
+ if (err) {
+ logger.error(
+ { file: statusFile, fsErr: err },
+ 'error reading service status file'
+ )
+ return
+ }
+ updateDeploymentStatus(fileContent)
+ })
+}
+
+function checkStatusFileSync() {
+ // crash on start up if file does not exist
+ const content = fs.readFileSync(statusFile, { encoding: 'utf8' })
+ updateDeploymentStatus(content)
+}
+
+module.exports = {
+ initialise() {
+ if (statusFile && deploymentColour) {
+ logger.log(
+ { statusFile, deploymentColour, interval: FILE_CHECK_INTERVAL },
+ 'monitoring deployment status file'
+ )
+ checkStatusFileSync() // perform an initial synchronous check at start up
+ setInterval(pollStatusFile, FILE_CHECK_INTERVAL) // continue checking periodically
+ }
+ },
+ deploymentIsClosed() {
+ return settings.serviceIsClosed && Date.now() > serviceCloseTime
+ },
+}
diff --git a/services/real-time/app/js/DocumentUpdaterController.js b/services/real-time/app/js/DocumentUpdaterController.js
new file mode 100644
index 0000000000..290882c41f
--- /dev/null
+++ b/services/real-time/app/js/DocumentUpdaterController.js
@@ -0,0 +1,176 @@
+/* eslint-disable
+ camelcase,
+*/
+const logger = require('logger-sharelatex')
+const settings = require('@overleaf/settings')
+const RedisClientManager = require('./RedisClientManager')
+const SafeJsonParse = require('./SafeJsonParse')
+const EventLogger = require('./EventLogger')
+const HealthCheckManager = require('./HealthCheckManager')
+const RoomManager = require('./RoomManager')
+const ChannelManager = require('./ChannelManager')
+const metrics = require('@overleaf/metrics')
+
+let DocumentUpdaterController
+module.exports = DocumentUpdaterController = {
+ // DocumentUpdaterController is responsible for updates that come via Redis
+ // Pub/Sub from the document updater.
+ rclientList: RedisClientManager.createClientList(settings.redis.pubsub),
+
+ listenForUpdatesFromDocumentUpdater(io) {
+ logger.log(
+ { rclients: this.rclientList.length },
+ 'listening for applied-ops events'
+ )
+ for (const rclient of this.rclientList) {
+ rclient.subscribe('applied-ops')
+ rclient.on('message', function (channel, message) {
+ metrics.inc('rclient', 0.001) // global event rate metric
+ if (settings.debugEvents > 0) {
+ EventLogger.debugEvent(channel, message)
+ }
+ DocumentUpdaterController._processMessageFromDocumentUpdater(
+ io,
+ channel,
+ message
+ )
+ })
+ }
+ // create metrics for each redis instance only when we have multiple redis clients
+ if (this.rclientList.length > 1) {
+ this.rclientList.forEach((rclient, i) => {
+ // per client event rate metric
+ const metricName = `rclient-${i}`
+ rclient.on('message', () => metrics.inc(metricName, 0.001))
+ })
+ }
+ this.handleRoomUpdates(this.rclientList)
+ },
+
+ handleRoomUpdates(rclientSubList) {
+ const roomEvents = RoomManager.eventSource()
+ roomEvents.on('doc-active', function (doc_id) {
+ const subscribePromises = rclientSubList.map(rclient =>
+ ChannelManager.subscribe(rclient, 'applied-ops', doc_id)
+ )
+ RoomManager.emitOnCompletion(
+ subscribePromises,
+ `doc-subscribed-${doc_id}`
+ )
+ })
+ roomEvents.on('doc-empty', doc_id =>
+ rclientSubList.map(rclient =>
+ ChannelManager.unsubscribe(rclient, 'applied-ops', doc_id)
+ )
+ )
+ },
+
+ _processMessageFromDocumentUpdater(io, channel, message) {
+ SafeJsonParse.parse(message, function (error, message) {
+ if (error) {
+ logger.error({ err: error, channel }, 'error parsing JSON')
+ return
+ }
+ if (message.op) {
+ if (message._id && settings.checkEventOrder) {
+ const status = EventLogger.checkEventOrder(
+ 'applied-ops',
+ message._id,
+ message
+ )
+ if (status === 'duplicate') {
+ return // skip duplicate events
+ }
+ }
+ DocumentUpdaterController._applyUpdateFromDocumentUpdater(
+ io,
+ message.doc_id,
+ message.op
+ )
+ } else if (message.error) {
+ DocumentUpdaterController._processErrorFromDocumentUpdater(
+ io,
+ message.doc_id,
+ message.error,
+ message
+ )
+ } else if (message.health_check) {
+ logger.debug(
+ { message },
+ 'got health check message in applied ops channel'
+ )
+ HealthCheckManager.check(channel, message.key)
+ }
+ })
+ },
+
+ _applyUpdateFromDocumentUpdater(io, doc_id, update) {
+ let client
+ const clientList = io.sockets.clients(doc_id)
+ // avoid unnecessary work if no clients are connected
+ if (clientList.length === 0) {
+ return
+ }
+ // send updates to clients
+ logger.log(
+ {
+ doc_id,
+ version: update.v,
+ source: update.meta && update.meta.source,
+ socketIoClients: clientList.map(client => client.id),
+ },
+ 'distributing updates to clients'
+ )
+ const seen = {}
+ // send messages only to unique clients (due to duplicate entries in io.sockets.clients)
+ for (client of clientList) {
+ if (!seen[client.id]) {
+ seen[client.id] = true
+ if (client.publicId === update.meta.source) {
+ logger.log(
+ {
+ doc_id,
+ version: update.v,
+ source: update.meta.source,
+ },
+ 'distributing update to sender'
+ )
+ client.emit('otUpdateApplied', { v: update.v, doc: update.doc })
+ } else if (!update.dup) {
+ // Duplicate ops should just be sent back to sending client for acknowledgement
+ logger.log(
+ {
+ doc_id,
+ version: update.v,
+ source: update.meta.source,
+ client_id: client.id,
+ },
+ 'distributing update to collaborator'
+ )
+ client.emit('otUpdateApplied', update)
+ }
+ }
+ }
+ if (Object.keys(seen).length < clientList.length) {
+ metrics.inc('socket-io.duplicate-clients', 0.1)
+ logger.log(
+ {
+ doc_id,
+ socketIoClients: clientList.map(client => client.id),
+ },
+ 'discarded duplicate clients'
+ )
+ }
+ },
+
+ _processErrorFromDocumentUpdater(io, doc_id, error, message) {
+ for (const client of io.sockets.clients(doc_id)) {
+ logger.warn(
+ { err: error, doc_id, client_id: client.id },
+ 'error from document updater, disconnecting client'
+ )
+ client.emit('otUpdateError', error, message)
+ client.disconnect()
+ }
+ },
+}
diff --git a/services/real-time/app/js/DocumentUpdaterManager.js b/services/real-time/app/js/DocumentUpdaterManager.js
new file mode 100644
index 0000000000..9f01ed73e3
--- /dev/null
+++ b/services/real-time/app/js/DocumentUpdaterManager.js
@@ -0,0 +1,150 @@
+/* eslint-disable
+ camelcase,
+*/
+const request = require('request')
+const _ = require('underscore')
+const OError = require('@overleaf/o-error')
+const logger = require('logger-sharelatex')
+const settings = require('@overleaf/settings')
+const metrics = require('@overleaf/metrics')
+const {
+ ClientRequestedMissingOpsError,
+ DocumentUpdaterRequestFailedError,
+ NullBytesInOpError,
+ UpdateTooLargeError,
+} = require('./Errors')
+
+const rclient = require('@overleaf/redis-wrapper').createClient(
+ settings.redis.documentupdater
+)
+const Keys = settings.redis.documentupdater.key_schema
+
+const DocumentUpdaterManager = {
+ getDocument(project_id, doc_id, fromVersion, callback) {
+ const timer = new metrics.Timer('get-document')
+ const url = `${settings.apis.documentupdater.url}/project/${project_id}/doc/${doc_id}?fromVersion=${fromVersion}`
+ logger.log(
+ { project_id, doc_id, fromVersion },
+ 'getting doc from document updater'
+ )
+ request.get(url, function (err, res, body) {
+ timer.done()
+ if (err) {
+ OError.tag(err, 'error getting doc from doc updater')
+ return callback(err)
+ }
+ if (res.statusCode >= 200 && res.statusCode < 300) {
+ logger.log(
+ { project_id, doc_id },
+ 'got doc from document document updater'
+ )
+ try {
+ body = JSON.parse(body)
+ } catch (error) {
+ OError.tag(error, 'error parsing doc updater response')
+ return callback(error)
+ }
+ body = body || {}
+ callback(null, body.lines, body.version, body.ranges, body.ops)
+ } else if ([404, 422].includes(res.statusCode)) {
+ callback(new ClientRequestedMissingOpsError(res.statusCode))
+ } else {
+ callback(
+ new DocumentUpdaterRequestFailedError('getDocument', res.statusCode)
+ )
+ }
+ })
+ },
+
+ checkDocument(project_id, doc_id, callback) {
+ // in this call fromVersion = -1 means get document without docOps
+ DocumentUpdaterManager.getDocument(project_id, doc_id, -1, callback)
+ },
+
+ flushProjectToMongoAndDelete(project_id, callback) {
+ // this method is called when the last connected user leaves the project
+ logger.log({ project_id }, 'deleting project from document updater')
+ const timer = new metrics.Timer('delete.mongo.project')
+ // flush the project in the background when all users have left
+ const url =
+ `${settings.apis.documentupdater.url}/project/${project_id}?background=true` +
+ (settings.shutDownInProgress ? '&shutdown=true' : '')
+ request.del(url, function (err, res) {
+ timer.done()
+ if (err) {
+ OError.tag(err, 'error deleting project from document updater')
+ callback(err)
+ } else if (res.statusCode >= 200 && res.statusCode < 300) {
+ logger.log({ project_id }, 'deleted project from document updater')
+ callback(null)
+ } else {
+ callback(
+ new DocumentUpdaterRequestFailedError(
+ 'flushProjectToMongoAndDelete',
+ res.statusCode
+ )
+ )
+ }
+ })
+ },
+
+ _getPendingUpdateListKey() {
+ const shard = _.random(0, settings.pendingUpdateListShardCount - 1)
+ if (shard === 0) {
+ return 'pending-updates-list'
+ } else {
+ return `pending-updates-list-${shard}`
+ }
+ },
+
+ queueChange(project_id, doc_id, change, callback) {
+ const allowedKeys = [
+ 'doc',
+ 'op',
+ 'v',
+ 'dupIfSource',
+ 'meta',
+ 'lastV',
+ 'hash',
+ ]
+ change = _.pick(change, allowedKeys)
+ const jsonChange = JSON.stringify(change)
+ if (jsonChange.indexOf('\u0000') !== -1) {
+ // memory corruption check
+ return callback(new NullBytesInOpError(jsonChange))
+ }
+
+ const updateSize = jsonChange.length
+ if (updateSize > settings.maxUpdateSize) {
+ return callback(new UpdateTooLargeError(updateSize))
+ }
+
+ // record metric for each update added to queue
+ metrics.summary('redis.pendingUpdates', updateSize, { status: 'push' })
+
+ const doc_key = `${project_id}:${doc_id}`
+ // Push onto pendingUpdates for doc_id first, because once the doc updater
+ // gets an entry on pending-updates-list, it starts processing.
+ rclient.rpush(
+ Keys.pendingUpdates({ doc_id }),
+ jsonChange,
+ function (error) {
+ if (error) {
+ error = new OError('error pushing update into redis').withCause(error)
+ return callback(error)
+ }
+ const queueKey = DocumentUpdaterManager._getPendingUpdateListKey()
+ rclient.rpush(queueKey, doc_key, function (error) {
+ if (error) {
+ error = new OError('error pushing doc_id into redis')
+ .withInfo({ queueKey })
+ .withCause(error)
+ }
+ callback(error)
+ })
+ }
+ )
+ },
+}
+
+module.exports = DocumentUpdaterManager
diff --git a/services/real-time/app/js/DrainManager.js b/services/real-time/app/js/DrainManager.js
new file mode 100644
index 0000000000..5f9c192afd
--- /dev/null
+++ b/services/real-time/app/js/DrainManager.js
@@ -0,0 +1,59 @@
+const logger = require('logger-sharelatex')
+
+module.exports = {
+ startDrainTimeWindow(io, minsToDrain, callback) {
+ const drainPerMin = io.sockets.clients().length / minsToDrain
+ // enforce minimum drain rate
+ this.startDrain(io, Math.max(drainPerMin / 60, 4), callback)
+ },
+
+ startDrain(io, rate, callback) {
+ // Clear out any old interval
+ clearInterval(this.interval)
+ logger.log({ rate }, 'starting drain')
+ if (rate === 0) {
+ return
+ }
+ let pollingInterval
+ if (rate < 1) {
+ // allow lower drain rates
+ // e.g. rate=0.1 will drain one client every 10 seconds
+ pollingInterval = 1000 / rate
+ rate = 1
+ } else {
+ pollingInterval = 1000
+ }
+ this.interval = setInterval(() => {
+ const requestedAllClientsToReconnect = this.reconnectNClients(io, rate)
+ if (requestedAllClientsToReconnect && callback) {
+ callback()
+ callback = undefined
+ }
+ }, pollingInterval)
+ },
+
+ RECONNECTED_CLIENTS: {},
+ reconnectNClients(io, N) {
+ let drainedCount = 0
+ for (const client of io.sockets.clients()) {
+ if (!this.RECONNECTED_CLIENTS[client.id]) {
+ this.RECONNECTED_CLIENTS[client.id] = true
+ logger.log(
+ { client_id: client.id },
+ 'Asking client to reconnect gracefully'
+ )
+ client.emit('reconnectGracefully')
+ drainedCount++
+ }
+ const haveDrainedNClients = drainedCount === N
+ if (haveDrainedNClients) {
+ break
+ }
+ }
+ if (drainedCount < N) {
+ logger.log('All clients have been told to reconnectGracefully')
+ return true
+ }
+ return false
+ },
+}
diff --git a/services/real-time/app/js/Errors.js b/services/real-time/app/js/Errors.js
new file mode 100644
index 0000000000..a5177be737
--- /dev/null
+++ b/services/real-time/app/js/Errors.js
@@ -0,0 +1,103 @@
+const OError = require('@overleaf/o-error')
+
+class ClientRequestedMissingOpsError extends OError {
+ constructor(statusCode) {
+ super('doc updater could not load requested ops', {
+ statusCode,
+ })
+ }
+}
+
+class CodedError extends OError {
+ constructor(message, code) {
+ super(message, { code })
+ }
+}
+
+class CorruptedJoinProjectResponseError extends OError {
+ constructor() {
+ super('no data returned from joinProject request')
+ }
+}
+
+class DataTooLargeToParseError extends OError {
+ constructor(data) {
+ super('data too large to parse', {
+ head: data.slice(0, 1024),
+ length: data.length,
+ })
+ }
+}
+
+class DocumentUpdaterRequestFailedError extends OError {
+ constructor(action, statusCode) {
+ super('doc updater returned a non-success status code', {
+ action,
+ statusCode,
+ })
+ }
+}
+
+class JoinLeaveEpochMismatchError extends OError {
+ constructor() {
+ super('joinLeaveEpoch mismatch')
+ }
+}
+
+class MissingSessionError extends OError {
+ constructor() {
+ super('could not look up session by key')
+ }
+}
+
+class NotAuthorizedError extends OError {
+ constructor() {
+ super('not authorized')
+ }
+}
+
+class NotJoinedError extends OError {
+ constructor() {
+ super('no project_id found on client')
+ }
+}
+
+class NullBytesInOpError extends OError {
+ constructor(jsonChange) {
+ super('null bytes found in op', { jsonChange })
+ }
+}
+
+class UnexpectedArgumentsError extends OError {
+ constructor() {
+ super('unexpected arguments')
+ }
+}
+
+class UpdateTooLargeError extends OError {
+ constructor(updateSize) {
+ super('update is too large', { updateSize })
+ }
+}
+
+class WebApiRequestFailedError extends OError {
+ constructor(statusCode) {
+ super('non-success status code from web', { statusCode })
+ }
+}
+
+module.exports = {
+ CodedError,
+ CorruptedJoinProjectResponseError,
+ ClientRequestedMissingOpsError,
+ DataTooLargeToParseError,
+ DocumentUpdaterRequestFailedError,
+ JoinLeaveEpochMismatchError,
+ MissingSessionError,
+ NotAuthorizedError,
+ NotJoinedError,
+ NullBytesInOpError,
+ UnexpectedArgumentsError,
+ UpdateTooLargeError,
+ WebApiRequestFailedError,
+}
diff --git a/services/real-time/app/js/EventLogger.js b/services/real-time/app/js/EventLogger.js
new file mode 100644
index 0000000000..91f63e143c
--- /dev/null
+++ b/services/real-time/app/js/EventLogger.js
@@ -0,0 +1,84 @@
+/* eslint-disable
+ camelcase,
+*/
+let EventLogger
+const logger = require('logger-sharelatex')
+const metrics = require('@overleaf/metrics')
+const settings = require('@overleaf/settings')
+
+// keep track of message counters to detect duplicate and out of order events
+// messsage ids have the format "UNIQUEHOSTKEY-COUNTER"
+
+const EVENT_LOG_COUNTER = {}
+const EVENT_LOG_TIMESTAMP = {}
+let EVENT_LAST_CLEAN_TIMESTAMP = 0
+
+// counter for debug logs
+let COUNTER = 0
+
+module.exports = EventLogger = {
+ MAX_STALE_TIME_IN_MS: 3600 * 1000,
+
+ debugEvent(channel, message) {
+ if (settings.debugEvents > 0) {
+ logger.log({ channel, message, counter: COUNTER++ }, 'logging event')
+ settings.debugEvents--
+ }
+ },
+
+ checkEventOrder(channel, message_id) {
+ if (typeof message_id !== 'string') {
+ return
+ }
+ let result
+ if (!(result = message_id.match(/^(.*)-(\d+)$/))) {
+ return
+ }
+ const key = result[1]
+ const count = parseInt(result[2], 0)
+ if (!(count >= 0)) {
+ // ignore checks if counter is not present
+ return
+ }
+ // store the last count in a hash for each host
+ const previous = EventLogger._storeEventCount(key, count)
+ if (!previous || count === previous + 1) {
+ metrics.inc(`event.${channel}.valid`)
+ return // order is ok
+ }
+ if (count === previous) {
+ metrics.inc(`event.${channel}.duplicate`)
+ logger.warn({ channel, message_id }, 'duplicate event')
+ return 'duplicate'
+ } else {
+ metrics.inc(`event.${channel}.out-of-order`)
+ logger.warn(
+ { channel, message_id, key, previous, count },
+ 'out of order event'
+ )
+ return 'out-of-order'
+ }
+ },
+
+ _storeEventCount(key, count) {
+ const previous = EVENT_LOG_COUNTER[key]
+ const now = Date.now()
+ EVENT_LOG_COUNTER[key] = count
+ EVENT_LOG_TIMESTAMP[key] = now
+ // periodically remove old counts
+ if (now - EVENT_LAST_CLEAN_TIMESTAMP > EventLogger.MAX_STALE_TIME_IN_MS) {
+ EventLogger._cleanEventStream(now)
+ EVENT_LAST_CLEAN_TIMESTAMP = now
+ }
+ return previous
+ },
+
+ _cleanEventStream(now) {
+ Object.entries(EVENT_LOG_TIMESTAMP).forEach(([key, timestamp]) => {
+ if (now - timestamp > EventLogger.MAX_STALE_TIME_IN_MS) {
+ delete EVENT_LOG_COUNTER[key]
+ delete EVENT_LOG_TIMESTAMP[key]
+ }
+ })
+ },
+}
diff --git a/services/real-time/app/js/HealthCheckManager.js b/services/real-time/app/js/HealthCheckManager.js
new file mode 100644
index 0000000000..f521dd9fa0
--- /dev/null
+++ b/services/real-time/app/js/HealthCheckManager.js
@@ -0,0 +1,77 @@
+const metrics = require('@overleaf/metrics')
+const logger = require('logger-sharelatex')
+
+const os = require('os')
+const HOST = os.hostname()
+const PID = process.pid
+let COUNT = 0
+
+const CHANNEL_MANAGER = {} // hash of event checkers by channel name
+const CHANNEL_ERROR = {} // error status by channel name
+
+module.exports = class HealthCheckManager {
+ // create an instance of this class which checks that an event with a unique
+ // id is received only once within a timeout
+ constructor(channel, timeout) {
+ // unique event string
+ this.channel = channel
+ this.id = `host=${HOST}:pid=${PID}:count=${COUNT++}`
+ // count of number of times the event is received
+ this.count = 0
+ // after a timeout check the status of the count
+ this.handler = setTimeout(() => {
+ this.setStatus()
+ }, timeout || 1000)
+ // use a timer to record the latency of the channel
+ this.timer = new metrics.Timer(`event.${this.channel}.latency`)
+ // keep a record of these objects to dispatch on
+ CHANNEL_MANAGER[this.channel] = this
+ }
+
+ processEvent(id) {
+ // if this is our event record it
+ if (id === this.id) {
+ this.count++
+ if (this.timer) {
+ this.timer.done()
+ }
+ this.timer = undefined // only time the latency of the first event
+ }
+ }
+
+ setStatus() {
+ // if we saw the event anything other than a single time that is an error
+ const isFailing = this.count !== 1
+ if (isFailing) {
+ logger.err(
+ { channel: this.channel, count: this.count, id: this.id },
+ 'redis channel health check error'
+ )
+ }
+ CHANNEL_ERROR[this.channel] = isFailing
+ }
+
+ // class methods
+ static check(channel, id) {
+ // dispatch event to manager for channel
+ if (CHANNEL_MANAGER[channel]) {
+ CHANNEL_MANAGER[channel].processEvent(id)
+ }
+ }
+
+ static status() {
+ // return status of all channels for logging
+ return CHANNEL_ERROR
+ }
+
+ static isFailing() {
+ // check if any channel status is bad
+ for (const channel in CHANNEL_ERROR) {
+ const error = CHANNEL_ERROR[channel]
+ if (error === true) {
+ return true
+ }
+ }
+ return false
+ }
+}
diff --git a/services/real-time/app/js/HttpApiController.js b/services/real-time/app/js/HttpApiController.js
new file mode 100644
index 0000000000..625bbbf739
--- /dev/null
+++ b/services/real-time/app/js/HttpApiController.js
@@ -0,0 +1,52 @@
+/* eslint-disable
+ camelcase,
+*/
+const WebsocketLoadBalancer = require('./WebsocketLoadBalancer')
+const DrainManager = require('./DrainManager')
+const logger = require('logger-sharelatex')
+
+module.exports = {
+ sendMessage(req, res) {
+ logger.log({ message: req.params.message }, 'sending message')
+ if (Array.isArray(req.body)) {
+ for (const payload of req.body) {
+ WebsocketLoadBalancer.emitToRoom(
+ req.params.project_id,
+ req.params.message,
+ payload
+ )
+ }
+ } else {
+ WebsocketLoadBalancer.emitToRoom(
+ req.params.project_id,
+ req.params.message,
+ req.body
+ )
+ }
+ res.sendStatus(204)
+ },
+
+ startDrain(req, res) {
+ const io = req.app.get('io')
+ let rate = req.query.rate || '4'
+ rate = parseFloat(rate) || 0
+ logger.log({ rate }, 'setting client drain rate')
+ DrainManager.startDrain(io, rate)
+ res.sendStatus(204)
+ },
+
+ disconnectClient(req, res, next) {
+ const io = req.app.get('io')
+ const { client_id } = req.params
+ const client = io.sockets.sockets[client_id]
+
+ if (!client) {
+ logger.info({ client_id }, 'api: client already disconnected')
+ res.sendStatus(404)
+ return
+ }
+ logger.warn({ client_id }, 'api: requesting client disconnect')
+ client.on('disconnect', () => res.sendStatus(204))
+ client.disconnect()
+ },
+}
diff --git a/services/real-time/app/js/HttpController.js b/services/real-time/app/js/HttpController.js
new file mode 100644
index 0000000000..6e9d48cf63
--- /dev/null
+++ b/services/real-time/app/js/HttpController.js
@@ -0,0 +1,57 @@
+/* eslint-disable
+ camelcase,
+*/
+
+let HttpController
+module.exports = HttpController = {
+ // The code in this controller is hard to unit test because of a lot of
+ // dependencies on internal socket.io methods. It is not critical to the running
+ // of ShareLaTeX, and is only used for getting stats about connected clients,
+ // and for checking internal state in acceptance tests. The acceptances tests
+ // should provide appropriate coverage.
+ _getConnectedClientView(ioClient) {
+ const client_id = ioClient.id
+ const {
+ project_id,
+ user_id,
+ first_name,
+ last_name,
+ email,
+ connected_time,
+ } = ioClient.ol_context
+ const client = {
+ client_id,
+ project_id,
+ user_id,
+ first_name,
+ last_name,
+ email,
+ connected_time,
+ }
+ client.rooms = Object.keys(ioClient.manager.roomClients[client_id] || {})
+ // drop the namespace
+ .filter(room => room !== '')
+ // room names are composed as '/' and the default
+ // namespace is empty (see comments in RoomManager), just drop the '/'
+ .map(fullRoomPath => fullRoomPath.slice(1))
+ return client
+ },
+
+ getConnectedClients(req, res) {
+ const io = req.app.get('io')
+ const ioClients = io.sockets.clients()
+
+ res.json(ioClients.map(HttpController._getConnectedClientView))
+ },
+
+ getConnectedClient(req, res) {
+ const { client_id } = req.params
+ const io = req.app.get('io')
+ const ioClient = io.sockets.sockets[client_id]
+ if (!ioClient) {
+ res.sendStatus(404)
+ return
+ }
+ res.json(HttpController._getConnectedClientView(ioClient))
+ },
+}
diff --git a/services/real-time/app/js/RedisClientManager.js b/services/real-time/app/js/RedisClientManager.js
new file mode 100644
index 0000000000..226bf91cfd
--- /dev/null
+++ b/services/real-time/app/js/RedisClientManager.js
@@ -0,0 +1,19 @@
+const redis = require('@overleaf/redis-wrapper')
+const logger = require('logger-sharelatex')
+
+module.exports = {
+ createClientList(...configs) {
+ // create a dynamic list of redis clients, excluding any configurations which are not defined
+ return configs.filter(Boolean).map(x => {
+ const redisType = x.cluster
+ ? 'cluster'
+ : x.sentinels
+ ? 'sentinel'
+ : x.host
+ ? 'single'
+ : 'unknown'
+ logger.log({ redis: redisType }, 'creating redis client')
+ return redis.createClient(x)
+ })
+ },
+}
diff --git a/services/real-time/app/js/RoomManager.js b/services/real-time/app/js/RoomManager.js
new file mode 100644
index 0000000000..e030b60490
--- /dev/null
+++ b/services/real-time/app/js/RoomManager.js
@@ -0,0 +1,164 @@
+/* eslint-disable
+ camelcase,
+*/
+const logger = require('logger-sharelatex')
+const metrics = require('@overleaf/metrics')
+const { EventEmitter } = require('events')
+const OError = require('@overleaf/o-error')
+
+const IdMap = new Map() // keep track of whether ids are from projects or docs
+const RoomEvents = new EventEmitter() // emits {project,doc}-active and {project,doc}-empty events
+
+// Manage socket.io rooms for individual projects and docs
+//
+// The first time someone joins a project or doc we emit a 'project-active' or
+// 'doc-active' event.
+//
+// When the last person leaves a project or doc, we emit 'project-empty' or
+// 'doc-empty' event.
+//
+// The pubsub side is handled by ChannelManager
+
+module.exports = {
+ joinProject(client, project_id, callback) {
+ this.joinEntity(client, 'project', project_id, callback)
+ },
+
+ joinDoc(client, doc_id, callback) {
+ this.joinEntity(client, 'doc', doc_id, callback)
+ },
+
+ leaveDoc(client, doc_id) {
+ this.leaveEntity(client, 'doc', doc_id)
+ },
+
+ leaveProjectAndDocs(client) {
+ // what rooms is this client in? we need to leave them all. socket.io
+ // will cause us to leave the rooms, so we only need to manage our
+ // channel subscriptions... but it will be safer if we leave them
+ // explicitly, and then socket.io will just regard this as a client that
+ // has not joined any rooms and do a final disconnection.
+ const roomsToLeave = this._roomsClientIsIn(client)
+ logger.log({ client: client.id, roomsToLeave }, 'client leaving project')
+ for (const id of roomsToLeave) {
+ const entity = IdMap.get(id)
+ this.leaveEntity(client, entity, id)
+ }
+ },
+
+ emitOnCompletion(promiseList, eventName) {
+ Promise.all(promiseList)
+ .then(() => RoomEvents.emit(eventName))
+ .catch(err => RoomEvents.emit(eventName, err))
+ },
+
+ eventSource() {
+ return RoomEvents
+ },
+
+ joinEntity(client, entity, id, callback) {
+ const beforeCount = this._clientsInRoom(client, id)
+ // client joins room immediately but joinDoc request does not complete
+ // until room is subscribed
+ client.join(id)
+ // is this a new room? if so, subscribe
+ if (beforeCount === 0) {
+ logger.log({ entity, id }, 'room is now active')
+ RoomEvents.once(`${entity}-subscribed-${id}`, function (err) {
+ // only allow the client to join when all the relevant channels have subscribed
+ if (err) {
+ OError.tag(err, 'error joining', { entity, id })
+ return callback(err)
+ }
+ logger.log(
+ { client: client.id, entity, id, beforeCount },
+ 'client joined new room and subscribed to channel'
+ )
+ callback(err)
+ })
+ RoomEvents.emit(`${entity}-active`, id)
+ IdMap.set(id, entity)
+ // keep track of the number of listeners
+ metrics.gauge('room-listeners', RoomEvents.eventNames().length)
+ } else {
+ logger.log(
+ { client: client.id, entity, id, beforeCount },
+ 'client joined existing room'
+ )
+ callback()
+ }
+ },
+
+ leaveEntity(client, entity, id) {
+ // Ignore any requests to leave when the client is not actually in the
+ // room. This can happen if the client sends spurious leaveDoc requests
+ // for old docs after a reconnection.
+ // This can now happen all the time, as we skip the join for clients that
+ // disconnect before joinProject/joinDoc completed.
+ if (!this._clientAlreadyInRoom(client, id)) {
+ logger.log(
+ { client: client.id, entity, id },
+ 'ignoring request from client to leave room it is not in'
+ )
+ return
+ }
+ client.leave(id)
+ const afterCount = this._clientsInRoom(client, id)
+ logger.log(
+ { client: client.id, entity, id, afterCount },
+ 'client left room'
+ )
+ // is the room now empty? if so, unsubscribe
+ if (!entity) {
+ logger.error({ entity: id }, 'unknown entity when leaving with id')
+ return
+ }
+ if (afterCount === 0) {
+ logger.log({ entity, id }, 'room is now empty')
+ RoomEvents.emit(`${entity}-empty`, id)
+ IdMap.delete(id)
+ metrics.gauge('room-listeners', RoomEvents.eventNames().length)
+ }
+ },
+
+ // internal functions below, these access socket.io rooms data directly and
+ // will need updating for socket.io v2
+
+ // The below code makes some assumptions that are always true for v0
+ // - we are using the base namespace '', so room names are '/'
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/manager.js#L62
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/manager.js#L1018
+ // - client.namespace is a Namespace
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/namespace.js#L204
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/socket.js#L40
+ // - client.manager is a Manager
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/namespace.js#L204
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/socket.js#L41
+ // - a Manager has
+ // - `.rooms={'NAMESPACE/ENTITY': []}` and
+ // - `.roomClients={'CLIENT_ID': {'...': true}}`
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/manager.js#L287-L288
+ // https://github.com/socketio/socket.io/blob/e4d61b1be65ac3313a85da111a46777aa8d4aae3/lib/manager.js#L444-L455
+
+ _clientsInRoom(client, room) {
+ const clients = client.manager.rooms['/' + room] || []
+ return clients.length
+ },
+
+ _roomsClientIsIn(client) {
+ const rooms = client.manager.roomClients[client.id] || {}
+ return (
+ Object.keys(rooms)
+ // drop the namespace
+ .filter(room => room !== '')
+ // room names are composed as '/' and the default
+ // namespace is empty (see comments above), just drop the '/'
+ .map(fullRoomPath => fullRoomPath.slice(1))
+ )
+ },
+
+ _clientAlreadyInRoom(client, room) {
+ const rooms = client.manager.roomClients[client.id] || {}
+ return !!rooms['/' + room]
+ },
+}
diff --git a/services/real-time/app/js/Router.js b/services/real-time/app/js/Router.js
new file mode 100644
index 0000000000..eff8dc7b1a
--- /dev/null
+++ b/services/real-time/app/js/Router.js
@@ -0,0 +1,374 @@
+/* eslint-disable
+ camelcase,
+*/
+const metrics = require('@overleaf/metrics')
+const logger = require('logger-sharelatex')
+const settings = require('@overleaf/settings')
+const WebsocketController = require('./WebsocketController')
+const HttpController = require('./HttpController')
+const HttpApiController = require('./HttpApiController')
+const bodyParser = require('body-parser')
+const base64id = require('base64id')
+const { UnexpectedArgumentsError } = require('./Errors')
+
+const basicAuth = require('basic-auth-connect')
+const httpAuth = basicAuth(function (user, pass) {
+ const isValid =
+ user === settings.internal.realTime.user &&
+ pass === settings.internal.realTime.pass
+ if (!isValid) {
+ logger.err({ user, pass }, 'invalid login details')
+ }
+ return isValid
+})
+
+const HOSTNAME = require('os').hostname()
+
+let Router
+module.exports = Router = {
+ _handleError(callback, error, client, method, attrs) {
+ attrs = attrs || {}
+ for (const key of ['project_id', 'user_id']) {
+ attrs[key] = attrs[key] || client.ol_context[key]
+ }
+ attrs.client_id = client.id
+ attrs.err = error
+ attrs.method = method
+ if (error.name === 'CodedError') {
+ logger.warn(attrs, error.message)
+ const serializedError = { message: error.message, code: error.info.code }
+ callback(serializedError)
+ } else if (error.message === 'unexpected arguments') {
+ // the payload might be very large, put it on level info
+ logger.log(attrs, 'unexpected arguments')
+ metrics.inc('unexpected-arguments', 1, { status: method })
+ const serializedError = { message: error.message }
+ callback(serializedError)
+ } else if (error.message === 'no project_id found on client') {
+ logger.debug(attrs, error.message)
+ const serializedError = { message: error.message }
+ callback(serializedError)
+ } else if (
+ [
+ 'not authorized',
+ 'joinLeaveEpoch mismatch',
+ 'doc updater could not load requested ops',
+ ].includes(error.message)
+ ) {
+ logger.warn(attrs, error.message)
+ const serializedError = { message: error.message }
+ callback(serializedError)
+ } else {
+ logger.error(attrs, `server side error in ${method}`)
+ // Don't return raw error to prevent leaking server side info
+ const serializedError = {
+ message: 'Something went wrong in real-time service',
+ }
+ callback(serializedError)
+ }
+ },
+
+ _handleInvalidArguments(client, method, args) {
+ const error = new UnexpectedArgumentsError()
+ let callback = args[args.length - 1]
+ if (typeof callback !== 'function') {
+ callback = function () {}
+ }
+ const attrs = { arguments: args }
+ Router._handleError(callback, error, client, method, attrs)
+ },
+
+ configure(app, io, session) {
+ app.set('io', io)
+ app.get('/clients', HttpController.getConnectedClients)
+ app.get('/clients/:client_id', HttpController.getConnectedClient)
+
+ app.post(
+ '/project/:project_id/message/:message',
+ httpAuth,
+ bodyParser.json({ limit: '5mb' }),
+ HttpApiController.sendMessage
+ )
+
+ app.post('/drain', httpAuth, HttpApiController.startDrain)
+ app.post(
+ '/client/:client_id/disconnect',
+ httpAuth,
+ HttpApiController.disconnectClient
+ )
+
+ session.on('connection', function (error, client, session) {
+ // init client context, we may access it in Router._handleError before
+ // setting any values
+ client.ol_context = {}
+ // bail out from joinDoc when a parallel joinDoc or leaveDoc is running
+ client.joinLeaveEpoch = 0
+
+ if (client) {
+ client.on('error', function (err) {
+ logger.err({ clientErr: err }, 'socket.io client error')
+ if (client.connected) {
+ client.emit('reconnectGracefully')
+ client.disconnect()
+ }
+ })
+ }
+
+ if (settings.shutDownInProgress) {
+ client.emit('connectionRejected', { message: 'retry' })
+ client.disconnect()
+ return
+ }
+
+ if (
+ client &&
+ error &&
+ error.message.match(/could not look up session by key/)
+ ) {
+ logger.warn(
+ { err: error, client: !!client, session: !!session },
+ 'invalid session'
+ )
+ // tell the client to reauthenticate if it has an invalid session key
+ client.emit('connectionRejected', { message: 'invalid session' })
+ client.disconnect()
+ return
+ }
+
+ if (error) {
+ logger.err(
+ { err: error, client: !!client, session: !!session },
+ 'error when client connected'
+ )
+ if (client) {
+ client.emit('connectionRejected', { message: 'error' })
+ }
+ if (client) {
+ client.disconnect()
+ }
+ return
+ }
+
+ // send positive confirmation that the client has a valid connection
+ client.publicId = 'P.' + base64id.generateId()
+ client.emit('connectionAccepted', null, client.publicId)
+
+ metrics.inc('socket-io.connection', 1, { status: client.transport })
+ metrics.gauge('socket-io.clients', io.sockets.clients().length)
+
+ logger.log({ session, client_id: client.id }, 'client connected')
+
+ let user
+ if (session && session.passport && session.passport.user) {
+ ;({ user } = session.passport)
+ } else if (session && session.user) {
+ ;({ user } = session)
+ } else {
+ user = { _id: 'anonymous-user' }
+ }
+
+ if (settings.exposeHostname) {
+ client.on('debug.getHostname', function (callback) {
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(
+ client,
+ 'debug.getHostname',
+ arguments
+ )
+ }
+ callback(HOSTNAME)
+ })
+ }
+
+ client.on('joinProject', function (data, callback) {
+ data = data || {}
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(
+ client,
+ 'joinProject',
+ arguments
+ )
+ }
+
+ if (data.anonymousAccessToken) {
+ user.anonymousAccessToken = data.anonymousAccessToken
+ }
+ WebsocketController.joinProject(
+ client,
+ user,
+ data.project_id,
+ function (err, ...args) {
+ if (err) {
+ Router._handleError(callback, err, client, 'joinProject', {
+ project_id: data.project_id,
+ user_id: user._id,
+ })
+ } else {
+ callback(null, ...args)
+ }
+ }
+ )
+ })
+
+ client.on('disconnect', function () {
+ metrics.inc('socket-io.disconnect', 1, { status: client.transport })
+ metrics.gauge('socket-io.clients', io.sockets.clients().length)
+
+ WebsocketController.leaveProject(io, client, function (err) {
+ if (err) {
+ Router._handleError(function () {}, err, client, 'leaveProject')
+ }
+ })
+ })
+
+ // Variadic. The possible arguments:
+ // doc_id, callback
+ // doc_id, fromVersion, callback
+ // doc_id, options, callback
+ // doc_id, fromVersion, options, callback
+ client.on('joinDoc', function (doc_id, fromVersion, options, callback) {
+ if (typeof fromVersion === 'function' && !options) {
+ callback = fromVersion
+ fromVersion = -1
+ options = {}
+ } else if (
+ typeof fromVersion === 'number' &&
+ typeof options === 'function'
+ ) {
+ callback = options
+ options = {}
+ } else if (
+ typeof fromVersion === 'object' &&
+ typeof options === 'function'
+ ) {
+ callback = options
+ options = fromVersion
+ fromVersion = -1
+ } else if (
+ typeof fromVersion === 'number' &&
+ typeof options === 'object' &&
+ typeof callback === 'function'
+ ) {
+ // Called with 4 args, things are as expected
+ } else {
+ return Router._handleInvalidArguments(client, 'joinDoc', arguments)
+ }
+
+ WebsocketController.joinDoc(
+ client,
+ doc_id,
+ fromVersion,
+ options,
+ function (err, ...args) {
+ if (err) {
+ Router._handleError(callback, err, client, 'joinDoc', {
+ doc_id,
+ fromVersion,
+ })
+ } else {
+ callback(null, ...args)
+ }
+ }
+ )
+ })
+
+ client.on('leaveDoc', function (doc_id, callback) {
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(client, 'leaveDoc', arguments)
+ }
+
+ WebsocketController.leaveDoc(client, doc_id, function (err, ...args) {
+ if (err) {
+ Router._handleError(callback, err, client, 'leaveDoc', {
+ doc_id,
+ })
+ } else {
+ callback(null, ...args)
+ }
+ })
+ })
+
+ client.on('clientTracking.getConnectedUsers', function (callback) {
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(
+ client,
+ 'clientTracking.getConnectedUsers',
+ arguments
+ )
+ }
+
+ WebsocketController.getConnectedUsers(client, function (err, users) {
+ if (err) {
+ Router._handleError(
+ callback,
+ err,
+ client,
+ 'clientTracking.getConnectedUsers'
+ )
+ } else {
+ callback(null, users)
+ }
+ })
+ })
+
+ client.on(
+ 'clientTracking.updatePosition',
+ function (cursorData, callback) {
+ if (!callback) {
+ callback = function () {}
+ }
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(
+ client,
+ 'clientTracking.updatePosition',
+ arguments
+ )
+ }
+
+ WebsocketController.updateClientPosition(
+ client,
+ cursorData,
+ function (err) {
+ if (err) {
+ Router._handleError(
+ callback,
+ err,
+ client,
+ 'clientTracking.updatePosition'
+ )
+ } else {
+ callback()
+ }
+ }
+ )
+ }
+ )
+
+ client.on('applyOtUpdate', function (doc_id, update, callback) {
+ if (typeof callback !== 'function') {
+ return Router._handleInvalidArguments(
+ client,
+ 'applyOtUpdate',
+ arguments
+ )
+ }
+
+ WebsocketController.applyOtUpdate(
+ client,
+ doc_id,
+ update,
+ function (err) {
+ if (err) {
+ Router._handleError(callback, err, client, 'applyOtUpdate', {
+ doc_id,
+ update,
+ })
+ } else {
+ callback()
+ }
+ }
+ )
+ })
+ })
+ },
+}
diff --git a/services/real-time/app/js/SafeJsonParse.js b/services/real-time/app/js/SafeJsonParse.js
new file mode 100644
index 0000000000..bc7a6bed10
--- /dev/null
+++ b/services/real-time/app/js/SafeJsonParse.js
@@ -0,0 +1,17 @@
+const Settings = require('@overleaf/settings')
+const { DataTooLargeToParseError } = require('./Errors')
+
+module.exports = {
+ parse(data, callback) {
+ if (data.length > Settings.maxUpdateSize) {
+ return callback(new DataTooLargeToParseError(data))
+ }
+ let parsed
+ try {
+ parsed = JSON.parse(data)
+ } catch (e) {
+ return callback(e)
+ }
+ callback(null, parsed)
+ },
+}
diff --git a/services/real-time/app/js/SessionSockets.js b/services/real-time/app/js/SessionSockets.js
new file mode 100644
index 0000000000..b8ccde2ea8
--- /dev/null
+++ b/services/real-time/app/js/SessionSockets.js
@@ -0,0 +1,36 @@
+const OError = require('@overleaf/o-error')
+const { EventEmitter } = require('events')
+const { MissingSessionError } = require('./Errors')
+
+module.exports = function (io, sessionStore, cookieParser, cookieName) {
+ const missingSessionError = new MissingSessionError()
+
+ const sessionSockets = new EventEmitter()
+ function next(error, socket, session) {
+ sessionSockets.emit('connection', error, socket, session)
+ }
+
+ io.on('connection', function (socket) {
+ const req = socket.handshake
+ cookieParser(req, {}, function () {
+ const sessionId = req.signedCookies && req.signedCookies[cookieName]
+ if (!sessionId) {
+ return next(missingSessionError, socket)
+ }
+ sessionStore.get(sessionId, function (error, session) {
+ if (error) {
+ OError.tag(error, 'error getting session from sessionStore', {
+ sessionId,
+ })
+ return next(error, socket)
+ }
+ if (!session) {
+ return next(missingSessionError, socket)
+ }
+ next(null, socket, session)
+ })
+ })
+ })
+
+ return sessionSockets
+}
diff --git a/services/real-time/app/js/WebApiManager.js b/services/real-time/app/js/WebApiManager.js
new file mode 100644
index 0000000000..a51610ee77
--- /dev/null
+++ b/services/real-time/app/js/WebApiManager.js
@@ -0,0 +1,69 @@
+/* eslint-disable
+ camelcase,
+*/
+const request = require('request')
+const OError = require('@overleaf/o-error')
+const settings = require('@overleaf/settings')
+const logger = require('logger-sharelatex')
+const {
+ CodedError,
+ CorruptedJoinProjectResponseError,
+ NotAuthorizedError,
+ WebApiRequestFailedError,
+} = require('./Errors')
+
+module.exports = {
+ joinProject(project_id, user, callback) {
+ const user_id = user._id
+ logger.log({ project_id, user_id }, 'sending join project request to web')
+ const url = `${settings.apis.web.url}/project/${project_id}/join`
+ const headers = {}
+ if (user.anonymousAccessToken) {
+ headers['x-sl-anonymous-access-token'] = user.anonymousAccessToken
+ }
+ request.post(
+ {
+ url,
+ qs: { user_id },
+ auth: {
+ user: settings.apis.web.user,
+ pass: settings.apis.web.pass,
+ sendImmediately: true,
+ },
+ json: true,
+ jar: false,
+ headers,
+ },
+ function (error, response, data) {
+ if (error) {
+ OError.tag(error, 'join project request failed')
+ return callback(error)
+ }
+ if (response.statusCode >= 200 && response.statusCode < 300) {
+ if (!(data && data.project)) {
+ return callback(new CorruptedJoinProjectResponseError())
+ }
+ callback(
+ null,
+ data.project,
+ data.privilegeLevel,
+ data.isRestrictedUser
+ )
+ } else if (response.statusCode === 429) {
+ callback(
+ new CodedError(
+ 'rate-limit hit when joining project',
+ 'TooManyRequests'
+ )
+ )
+ } else if (response.statusCode === 403) {
+ callback(new NotAuthorizedError())
+ } else if (response.statusCode === 404) {
+ callback(new CodedError('project not found', 'ProjectNotFound'))
+ } else {
+ callback(new WebApiRequestFailedError(response.statusCode))
+ }
+ }
+ )
+ },
+}
diff --git a/services/real-time/app/js/WebsocketController.js b/services/real-time/app/js/WebsocketController.js
new file mode 100644
index 0000000000..c1ea8d232c
--- /dev/null
+++ b/services/real-time/app/js/WebsocketController.js
@@ -0,0 +1,573 @@
+/* eslint-disable
+ camelcase,
+*/
+const OError = require('@overleaf/o-error')
+const logger = require('logger-sharelatex')
+const metrics = require('@overleaf/metrics')
+const WebApiManager = require('./WebApiManager')
+const AuthorizationManager = require('./AuthorizationManager')
+const DocumentUpdaterManager = require('./DocumentUpdaterManager')
+const ConnectedUsersManager = require('./ConnectedUsersManager')
+const WebsocketLoadBalancer = require('./WebsocketLoadBalancer')
+const RoomManager = require('./RoomManager')
+const {
+ JoinLeaveEpochMismatchError,
+ NotAuthorizedError,
+ NotJoinedError,
+} = require('./Errors')
+
+let WebsocketController
+module.exports = WebsocketController = {
+ // If the protocol version changes when the client reconnects,
+ // it will force a full refresh of the page. Useful for non-backwards
+ // compatible protocol changes. Use only in extreme need.
+ PROTOCOL_VERSION: 2,
+
+ joinProject(client, user, project_id, callback) {
+ if (client.disconnected) {
+ metrics.inc('editor.join-project.disconnected', 1, {
+ status: 'immediately',
+ })
+ return callback()
+ }
+
+ const user_id = user._id
+ logger.log(
+ { user_id, project_id, client_id: client.id },
+ 'user joining project'
+ )
+ metrics.inc('editor.join-project', 1, { status: client.transport })
+ WebApiManager.joinProject(
+ project_id,
+ user,
+ function (error, project, privilegeLevel, isRestrictedUser) {
+ if (error) {
+ return callback(error)
+ }
+ if (client.disconnected) {
+ metrics.inc('editor.join-project.disconnected', 1, {
+ status: 'after-web-api-call',
+ })
+ return callback()
+ }
+
+ if (!privilegeLevel) {
+ return callback(new NotAuthorizedError())
+ }
+
+ client.ol_context = {}
+ client.ol_context.privilege_level = privilegeLevel
+ client.ol_context.user_id = user_id
+ client.ol_context.project_id = project_id
+ client.ol_context.owner_id = project.owner && project.owner._id
+ client.ol_context.first_name = user.first_name
+ client.ol_context.last_name = user.last_name
+ client.ol_context.email = user.email
+ client.ol_context.connected_time = new Date()
+ client.ol_context.signup_date = user.signUpDate
+ client.ol_context.login_count = user.loginCount
+ client.ol_context.is_restricted_user = !!isRestrictedUser
+
+ RoomManager.joinProject(client, project_id, function (err) {
+ if (err) {
+ return callback(err)
+ }
+ logger.log(
+ { user_id, project_id, client_id: client.id },
+ 'user joined project'
+ )
+ callback(
+ null,
+ project,
+ privilegeLevel,
+ WebsocketController.PROTOCOL_VERSION
+ )
+ })
+
+ // No need to block for setting the user as connected in the cursor tracking
+ ConnectedUsersManager.updateUserPosition(
+ project_id,
+ client.publicId,
+ user,
+ null,
+ function (err) {
+ if (err) {
+ logger.warn(
+ { err, project_id, user_id, client_id: client.id },
+ 'background cursor update failed'
+ )
+ }
+ }
+ )
+ }
+ )
+ },
+
+ // We want to flush a project if there are no more (local) connected clients
+ // but we need to wait for the triggering client to disconnect. How long we wait
+ // is determined by FLUSH_IF_EMPTY_DELAY.
+ FLUSH_IF_EMPTY_DELAY: 500, // ms
+ leaveProject(io, client, callback) {
+ const { project_id, user_id } = client.ol_context
+ if (!project_id) {
+ return callback()
+ } // client did not join project
+
+ metrics.inc('editor.leave-project', 1, { status: client.transport })
+ logger.log(
+ { project_id, user_id, client_id: client.id },
+ 'client leaving project'
+ )
+ WebsocketLoadBalancer.emitToRoom(
+ project_id,
+ 'clientTracking.clientDisconnected',
+ client.publicId
+ )
+
+ // We can do this in the background
+ ConnectedUsersManager.markUserAsDisconnected(
+ project_id,
+ client.publicId,
+ function (err) {
+ if (err) {
+ logger.error(
+ { err, project_id, user_id, client_id: client.id },
+ 'error marking client as disconnected'
+ )
+ }
+ }
+ )
+
+ RoomManager.leaveProjectAndDocs(client)
+ setTimeout(function () {
+ const remainingClients = io.sockets.clients(project_id)
+ if (remainingClients.length === 0) {
+ // Flush project in the background
+ DocumentUpdaterManager.flushProjectToMongoAndDelete(
+ project_id,
+ function (err) {
+ if (err) {
+ logger.error(
+ { err, project_id, user_id, client_id: client.id },
+ 'error flushing to doc updater after leaving project'
+ )
+ }
+ }
+ )
+ }
+ callback()
+ }, WebsocketController.FLUSH_IF_EMPTY_DELAY)
+ },
+
+ joinDoc(client, doc_id, fromVersion, options, callback) {
+ if (client.disconnected) {
+ metrics.inc('editor.join-doc.disconnected', 1, { status: 'immediately' })
+ return callback()
+ }
+
+ const joinLeaveEpoch = ++client.joinLeaveEpoch
+ metrics.inc('editor.join-doc', 1, { status: client.transport })
+ const { project_id, user_id, is_restricted_user } = client.ol_context
+ if (!project_id) {
+ return callback(new NotJoinedError())
+ }
+ logger.log(
+ { user_id, project_id, doc_id, fromVersion, client_id: client.id },
+ 'client joining doc'
+ )
+
+ WebsocketController._assertClientAuthorization(
+ client,
+ doc_id,
+ function (error) {
+ if (error) {
+ return callback(error)
+ }
+ if (client.disconnected) {
+ metrics.inc('editor.join-doc.disconnected', 1, {
+ status: 'after-client-auth-check',
+ })
+ // the client will not read the response anyways
+ return callback()
+ }
+ if (joinLeaveEpoch !== client.joinLeaveEpoch) {
+ // another joinDoc or leaveDoc rpc overtook us
+ return callback(new JoinLeaveEpochMismatchError())
+ }
+ // ensure the per-doc applied-ops channel is subscribed before sending the
+ // doc to the client, so that no events are missed.
+ RoomManager.joinDoc(client, doc_id, function (error) {
+ if (error) {
+ return callback(error)
+ }
+ if (client.disconnected) {
+ metrics.inc('editor.join-doc.disconnected', 1, {
+ status: 'after-joining-room',
+ })
+ // the client will not read the response anyways
+ return callback()
+ }
+
+ DocumentUpdaterManager.getDocument(
+ project_id,
+ doc_id,
+ fromVersion,
+ function (error, lines, version, ranges, ops) {
+ if (error) {
+ return callback(error)
+ }
+ if (client.disconnected) {
+ metrics.inc('editor.join-doc.disconnected', 1, {
+ status: 'after-doc-updater-call',
+ })
+ // the client will not read the response anyways
+ return callback()
+ }
+
+ if (is_restricted_user && ranges && ranges.comments) {
+ ranges.comments = []
+ }
+
+ // Encode any binary bits of data so it can go via WebSockets
+ // See http://ecmanaut.blogspot.co.uk/2006/07/encoding-decoding-utf8-in-javascript.html
+ const encodeForWebsockets = text =>
+ unescape(encodeURIComponent(text))
+ const escapedLines = []
+ for (let line of lines) {
+ try {
+ line = encodeForWebsockets(line)
+ } catch (err) {
+ OError.tag(err, 'error encoding line uri component', { line })
+ return callback(err)
+ }
+ escapedLines.push(line)
+ }
+ if (options.encodeRanges) {
+ try {
+ for (const comment of (ranges && ranges.comments) || []) {
+ if (comment.op.c) {
+ comment.op.c = encodeForWebsockets(comment.op.c)
+ }
+ }
+ for (const change of (ranges && ranges.changes) || []) {
+ if (change.op.i) {
+ change.op.i = encodeForWebsockets(change.op.i)
+ }
+ if (change.op.d) {
+ change.op.d = encodeForWebsockets(change.op.d)
+ }
+ }
+ } catch (err) {
+ OError.tag(err, 'error encoding range uri component', {
+ ranges,
+ })
+ return callback(err)
+ }
+ }
+
+ AuthorizationManager.addAccessToDoc(client, doc_id, () => {})
+ logger.log(
+ {
+ user_id,
+ project_id,
+ doc_id,
+ fromVersion,
+ client_id: client.id,
+ },
+ 'client joined doc'
+ )
+ callback(null, escapedLines, version, ops, ranges)
+ }
+ )
+ })
+ }
+ )
+ },
+
+ _assertClientAuthorization(client, doc_id, callback) {
+ // Check for project-level access first
+ AuthorizationManager.assertClientCanViewProject(client, function (error) {
+ if (error) {
+ return callback(error)
+ }
+ // Check for doc-level access next
+ AuthorizationManager.assertClientCanViewProjectAndDoc(
+ client,
+ doc_id,
+ function (error) {
+ if (error) {
+ // No cached access, check docupdater
+ const { project_id } = client.ol_context
+ DocumentUpdaterManager.checkDocument(
+ project_id,
+ doc_id,
+ function (error) {
+ if (error) {
+ return callback(error)
+ } else {
+ // Success
+ AuthorizationManager.addAccessToDoc(client, doc_id, callback)
+ }
+ }
+ )
+ } else {
+ // Access already cached
+ callback()
+ }
+ }
+ )
+ })
+ },
+
+ leaveDoc(client, doc_id, callback) {
+ // client may have disconnected, but we have to cleanup internal state.
+ client.joinLeaveEpoch++
+ metrics.inc('editor.leave-doc', 1, { status: client.transport })
+ const { project_id, user_id } = client.ol_context
+ logger.log(
+ { user_id, project_id, doc_id, client_id: client.id },
+ 'client leaving doc'
+ )
+ RoomManager.leaveDoc(client, doc_id)
+ // we could remove permission when user leaves a doc, but because
+ // the connection is per-project, we continue to allow access
+ // after the initial joinDoc since we know they are already authorised.
+ // # AuthorizationManager.removeAccessToDoc client, doc_id
+ callback()
+ },
+ updateClientPosition(client, cursorData, callback) {
+ if (client.disconnected) {
+ // do not create a ghost entry in redis
+ return callback()
+ }
+
+ metrics.inc('editor.update-client-position', 0.1, {
+ status: client.transport,
+ })
+ const { project_id, first_name, last_name, email, user_id } =
+ client.ol_context
+ logger.log(
+ { user_id, project_id, client_id: client.id, cursorData },
+ 'updating client position'
+ )
+
+ AuthorizationManager.assertClientCanViewProjectAndDoc(
+ client,
+ cursorData.doc_id,
+ function (error) {
+ if (error) {
+ logger.info(
+ { err: error, client_id: client.id, project_id, user_id },
+ "silently ignoring unauthorized updateClientPosition. Client likely hasn't called joinProject yet."
+ )
+ return callback()
+ }
+ cursorData.id = client.publicId
+ if (user_id) {
+ cursorData.user_id = user_id
+ }
+ if (email) {
+ cursorData.email = email
+ }
+ // Don't store anonymous users in redis to avoid influx
+ if (!user_id || user_id === 'anonymous-user') {
+ cursorData.name = ''
+ // consistent async behaviour
+ setTimeout(callback)
+ } else {
+ cursorData.name =
+ first_name && last_name
+ ? `${first_name} ${last_name}`
+ : first_name || last_name || ''
+ ConnectedUsersManager.updateUserPosition(
+ project_id,
+ client.publicId,
+ {
+ first_name,
+ last_name,
+ email,
+ _id: user_id,
+ },
+ {
+ row: cursorData.row,
+ column: cursorData.column,
+ doc_id: cursorData.doc_id,
+ },
+ callback
+ )
+ }
+ WebsocketLoadBalancer.emitToRoom(
+ project_id,
+ 'clientTracking.clientUpdated',
+ cursorData
+ )
+ }
+ )
+ },
+
+ CLIENT_REFRESH_DELAY: 1000,
+ getConnectedUsers(client, callback) {
+ if (client.disconnected) {
+ // they are not interested anymore, skip the redis lookups
+ return callback()
+ }
+
+ metrics.inc('editor.get-connected-users', { status: client.transport })
+ const { project_id, user_id, is_restricted_user } = client.ol_context
+ if (is_restricted_user) {
+ return callback(null, [])
+ }
+ if (!project_id) {
+ return callback(new NotJoinedError())
+ }
+ logger.log(
+ { user_id, project_id, client_id: client.id },
+ 'getting connected users'
+ )
+ AuthorizationManager.assertClientCanViewProject(client, function (error) {
+ if (error) {
+ return callback(error)
+ }
+ WebsocketLoadBalancer.emitToRoom(project_id, 'clientTracking.refresh')
+ setTimeout(
+ () =>
+ ConnectedUsersManager.getConnectedUsers(
+ project_id,
+ function (error, users) {
+ if (error) {
+ return callback(error)
+ }
+ logger.log(
+ { user_id, project_id, client_id: client.id },
+ 'got connected users'
+ )
+ callback(null, users)
+ }
+ ),
+ WebsocketController.CLIENT_REFRESH_DELAY
+ )
+ })
+ },
+
+ applyOtUpdate(client, doc_id, update, callback) {
+ // client may have disconnected, but we can submit their update to doc-updater anyways.
+ const { user_id, project_id } = client.ol_context
+ if (!project_id) {
+ return callback(new NotJoinedError())
+ }
+
+ WebsocketController._assertClientCanApplyUpdate(
+ client,
+ doc_id,
+ update,
+ function (error) {
+ if (error) {
+ setTimeout(
+ () =>
+ // Disconnect, but give the client the chance to receive the error
+ client.disconnect(),
+ 100
+ )
+ return callback(error)
+ }
+ if (!update.meta) {
+ update.meta = {}
+ }
+ update.meta.source = client.publicId
+ update.meta.user_id = user_id
+ metrics.inc('editor.doc-update', 0.3, { status: client.transport })
+
+ logger.log(
+ {
+ user_id,
+ doc_id,
+ project_id,
+ client_id: client.id,
+ version: update.v,
+ },
+ 'sending update to doc updater'
+ )
+
+ DocumentUpdaterManager.queueChange(
+ project_id,
+ doc_id,
+ update,
+ function (error) {
+ if ((error && error.message) === 'update is too large') {
+ metrics.inc('update_too_large')
+ const { updateSize } = error.info
+ logger.warn(
+ { user_id, project_id, doc_id, updateSize },
+ 'update is too large'
+ )
+
+ // mark the update as received -- the client should not send it again!
+ callback()
+
+ // trigger an out-of-sync error
+ const message = {
+ project_id,
+ doc_id,
+ error: 'update is too large',
+ }
+ setTimeout(function () {
+ if (client.disconnected) {
+ // skip the message broadcast, the client has moved on
+ return metrics.inc('editor.doc-update.disconnected', 1, {
+ status: 'at-otUpdateError',
+ })
+ }
+ client.emit('otUpdateError', message.error, message)
+ client.disconnect()
+ }, 100)
+ return
+ }
+
+ if (error) {
+ OError.tag(error, 'document was not available for update', {
+ version: update.v,
+ })
+ client.disconnect()
+ }
+ callback(error)
+ }
+ )
+ }
+ )
+ },
+
+ _assertClientCanApplyUpdate(client, doc_id, update, callback) {
+ AuthorizationManager.assertClientCanEditProjectAndDoc(
+ client,
+ doc_id,
+ function (error) {
+ if (
+ error &&
+ error.message === 'not authorized' &&
+ WebsocketController._isCommentUpdate(update)
+ ) {
+ // This might be a comment op, which we only need read-only priveleges for
+ AuthorizationManager.assertClientCanViewProjectAndDoc(
+ client,
+ doc_id,
+ callback
+ )
+ return
+ }
+ callback(error)
+ }
+ )
+ },
+
+ _isCommentUpdate(update) {
+ if (!(update && update.op instanceof Array)) {
+ return false
+ }
+ for (const op of update.op) {
+ if (!op.c) {
+ return false
+ }
+ }
+ return true
+ },
+}
diff --git a/services/real-time/app/js/WebsocketLoadBalancer.js b/services/real-time/app/js/WebsocketLoadBalancer.js
new file mode 100644
index 0000000000..f90f28c76b
--- /dev/null
+++ b/services/real-time/app/js/WebsocketLoadBalancer.js
@@ -0,0 +1,171 @@
+/* eslint-disable
+ camelcase,
+*/
+const Settings = require('@overleaf/settings')
+const logger = require('logger-sharelatex')
+const RedisClientManager = require('./RedisClientManager')
+const SafeJsonParse = require('./SafeJsonParse')
+const EventLogger = require('./EventLogger')
+const HealthCheckManager = require('./HealthCheckManager')
+const RoomManager = require('./RoomManager')
+const ChannelManager = require('./ChannelManager')
+const ConnectedUsersManager = require('./ConnectedUsersManager')
+
+const RESTRICTED_USER_MESSAGE_TYPE_PASS_LIST = [
+ 'connectionAccepted',
+ 'otUpdateApplied',
+ 'otUpdateError',
+ 'joinDoc',
+ 'reciveNewDoc',
+ 'reciveNewFile',
+ 'reciveNewFolder',
+ 'removeEntity',
+]
+
+let WebsocketLoadBalancer
+module.exports = WebsocketLoadBalancer = {
+ rclientPubList: RedisClientManager.createClientList(Settings.redis.pubsub),
+ rclientSubList: RedisClientManager.createClientList(Settings.redis.pubsub),
+
+ emitToRoom(room_id, message, ...payload) {
+ if (!room_id) {
+ logger.warn(
+ { message, payload },
+ 'no room_id provided, ignoring emitToRoom'
+ )
+ return
+ }
+ const data = JSON.stringify({
+ room_id,
+ message,
+ payload,
+ })
+ logger.log(
+ { room_id, message, payload, length: data.length },
+ 'emitting to room'
+ )
+
+ this.rclientPubList.map(rclientPub =>
+ ChannelManager.publish(rclientPub, 'editor-events', room_id, data)
+ )
+ },
+
+ emitToAll(message, ...payload) {
+ this.emitToRoom('all', message, ...payload)
+ },
+
+ listenForEditorEvents(io) {
+ logger.log(
+ { rclients: this.rclientSubList.length },
+ 'listening for editor events'
+ )
+ for (const rclientSub of this.rclientSubList) {
+ rclientSub.subscribe('editor-events')
+ rclientSub.on('message', function (channel, message) {
+ if (Settings.debugEvents > 0) {
+ EventLogger.debugEvent(channel, message)
+ }
+ WebsocketLoadBalancer._processEditorEvent(io, channel, message)
+ })
+ }
+ this.handleRoomUpdates(this.rclientSubList)
+ },
+
+ handleRoomUpdates(rclientSubList) {
+ const roomEvents = RoomManager.eventSource()
+ roomEvents.on('project-active', function (project_id) {
+ const subscribePromises = rclientSubList.map(rclient =>
+ ChannelManager.subscribe(rclient, 'editor-events', project_id)
+ )
+ RoomManager.emitOnCompletion(
+ subscribePromises,
+ `project-subscribed-${project_id}`
+ )
+ })
+ roomEvents.on('project-empty', project_id =>
+ rclientSubList.map(rclient =>
+ ChannelManager.unsubscribe(rclient, 'editor-events', project_id)
+ )
+ )
+ },
+
+ _processEditorEvent(io, channel, message) {
+ SafeJsonParse.parse(message, function (error, message) {
+ if (error) {
+ logger.error({ err: error, channel }, 'error parsing JSON')
+ return
+ }
+ if (message.room_id === 'all') {
+ io.sockets.emit(message.message, ...message.payload)
+ } else if (
+ message.message === 'clientTracking.refresh' &&
+ message.room_id
+ ) {
+ const clientList = io.sockets.clients(message.room_id)
+ logger.log(
+ {
+ channel,
+ message: message.message,
+ room_id: message.room_id,
+ message_id: message._id,
+ socketIoClients: clientList.map(client => client.id),
+ },
+ 'refreshing client list'
+ )
+ for (const client of clientList) {
+ ConnectedUsersManager.refreshClient(message.room_id, client.publicId)
+ }
+ } else if (message.room_id) {
+ if (message._id && Settings.checkEventOrder) {
+ const status = EventLogger.checkEventOrder(
+ 'editor-events',
+ message._id,
+ message
+ )
+ if (status === 'duplicate') {
+ return // skip duplicate events
+ }
+ }
+
+ const is_restricted_message =
+ !RESTRICTED_USER_MESSAGE_TYPE_PASS_LIST.includes(message.message)
+
+ // send messages only to unique clients (due to duplicate entries in io.sockets.clients)
+ const clientList = io.sockets
+ .clients(message.room_id)
+ .filter(
+ client =>
+ !(is_restricted_message && client.ol_context.is_restricted_user)
+ )
+
+ // avoid unnecessary work if no clients are connected
+ if (clientList.length === 0) {
+ return
+ }
+ logger.log(
+ {
+ channel,
+ message: message.message,
+ room_id: message.room_id,
+ message_id: message._id,
+ socketIoClients: clientList.map(client => client.id),
+ },
+ 'distributing event to clients'
+ )
+ const seen = new Map()
+ for (const client of clientList) {
+ if (!seen.has(client.id)) {
+ seen.set(client.id, true)
+ client.emit(message.message, ...message.payload)
+ }
+ }
+ } else if (message.health_check) {
+ logger.debug(
+ { message },
+ 'got health check message in editor events channel'
+ )
+ HealthCheckManager.check(channel, message.key)
+ }
+ })
+ },
+}
diff --git a/services/real-time/buildscript.txt b/services/real-time/buildscript.txt
new file mode 100644
index 0000000000..fcf340d99c
--- /dev/null
+++ b/services/real-time/buildscript.txt
@@ -0,0 +1,8 @@
+real-time
+--dependencies=redis
+--docker-repos=gcr.io/overleaf-ops
+--env-add=
+--env-pass-through=
+--node-version=12.22.3
+--public-repo=True
+--script-version=3.11.0
diff --git a/services/real-time/config/settings.defaults.js b/services/real-time/config/settings.defaults.js
new file mode 100644
index 0000000000..49b15e46fd
--- /dev/null
+++ b/services/real-time/config/settings.defaults.js
@@ -0,0 +1,168 @@
+/* eslint-disable camelcase */
+
+const settings = {
+ redis: {
+ pubsub: {
+ host:
+ process.env.PUBSUB_REDIS_HOST || process.env.REDIS_HOST || 'localhost',
+ port: process.env.PUBSUB_REDIS_PORT || process.env.REDIS_PORT || '6379',
+ password:
+ process.env.PUBSUB_REDIS_PASSWORD || process.env.REDIS_PASSWORD || '',
+ maxRetriesPerRequest: parseInt(
+ process.env.PUBSUB_REDIS_MAX_RETRIES_PER_REQUEST ||
+ process.env.REDIS_MAX_RETRIES_PER_REQUEST ||
+ '20'
+ ),
+ },
+
+ realtime: {
+ host:
+ process.env.REAL_TIME_REDIS_HOST ||
+ process.env.REDIS_HOST ||
+ 'localhost',
+ port:
+ process.env.REAL_TIME_REDIS_PORT || process.env.REDIS_PORT || '6379',
+ password:
+ process.env.REAL_TIME_REDIS_PASSWORD ||
+ process.env.REDIS_PASSWORD ||
+ '',
+ key_schema: {
+ clientsInProject({ project_id }) {
+ return `clients_in_project:{${project_id}}`
+ },
+ connectedUser({ project_id, client_id }) {
+ return `connected_user:{${project_id}}:${client_id}`
+ },
+ },
+ maxRetriesPerRequest: parseInt(
+ process.env.REAL_TIME_REDIS_MAX_RETRIES_PER_REQUEST ||
+ process.env.REDIS_MAX_RETRIES_PER_REQUEST ||
+ '20'
+ ),
+ },
+
+ documentupdater: {
+ host:
+ process.env.DOC_UPDATER_REDIS_HOST ||
+ process.env.REDIS_HOST ||
+ 'localhost',
+ port:
+ process.env.DOC_UPDATER_REDIS_PORT || process.env.REDIS_PORT || '6379',
+ password:
+ process.env.DOC_UPDATER_REDIS_PASSWORD ||
+ process.env.REDIS_PASSWORD ||
+ '',
+ key_schema: {
+ pendingUpdates({ doc_id }) {
+ return `PendingUpdates:{${doc_id}}`
+ },
+ },
+ maxRetriesPerRequest: parseInt(
+ process.env.DOC_UPDATER_REDIS_MAX_RETRIES_PER_REQUEST ||
+ process.env.REDIS_MAX_RETRIES_PER_REQUEST ||
+ '20'
+ ),
+ },
+
+ websessions: {
+ host: process.env.WEB_REDIS_HOST || process.env.REDIS_HOST || 'localhost',
+ port: process.env.WEB_REDIS_PORT || process.env.REDIS_PORT || '6379',
+ password:
+ process.env.WEB_REDIS_PASSWORD || process.env.REDIS_PASSWORD || '',
+ maxRetriesPerRequest: parseInt(
+ process.env.WEB_REDIS_MAX_RETRIES_PER_REQUEST ||
+ process.env.REDIS_MAX_RETRIES_PER_REQUEST ||
+ '20'
+ ),
+ },
+ },
+
+ internal: {
+ realTime: {
+ port: 3026,
+ host: process.env.LISTEN_ADDRESS || 'localhost',
+ user: 'sharelatex',
+ pass: 'password',
+ },
+ },
+
+ apis: {
+ web: {
+ url: `http://${
+ process.env.WEB_API_HOST || process.env.WEB_HOST || 'localhost'
+ }:${process.env.WEB_API_PORT || process.env.WEB_PORT || 3000}`,
+ user: process.env.WEB_API_USER || 'sharelatex',
+ pass: process.env.WEB_API_PASSWORD || 'password',
+ },
+ documentupdater: {
+ url: `http://${
+ process.env.DOCUMENT_UPDATER_HOST ||
+ process.env.DOCUPDATER_HOST ||
+ 'localhost'
+ }:3003`,
+ },
+ },
+
+ security: {
+ sessionSecret: process.env.SESSION_SECRET || 'secret-please-change',
+ },
+
+ cookieName: process.env.COOKIE_NAME || 'sharelatex.sid',
+
+ // Expose the hostname in the `debug.getHostname` rpc
+ exposeHostname: process.env.EXPOSE_HOSTNAME === 'true',
+
+ max_doc_length: 2 * 1024 * 1024, // 2mb
+
+ // should be set to the same same as dispatcherCount in document updater
+ pendingUpdateListShardCount: parseInt(
+ process.env.PENDING_UPDATE_LIST_SHARD_COUNT || 10,
+ 10
+ ),
+
+ // combine
+ // max_doc_length (2mb see above) * 2 (delete + insert)
+ // max_ranges_size (3mb see MAX_RANGES_SIZE in document-updater)
+ // overhead for JSON serialization
+ maxUpdateSize:
+ parseInt(process.env.MAX_UPDATE_SIZE) || 7 * 1024 * 1024 + 64 * 1024,
+
+ shutdownDrainTimeWindow: process.env.SHUTDOWN_DRAIN_TIME_WINDOW || 9,
+
+ // The shutdown procedure asks clients to reconnect gracefully.
+ // 3rd-party/buggy clients may not act upon receiving the message and keep
+ // stale connections alive. We forcefully disconnect them after X ms:
+ gracefulReconnectTimeoutMs:
+ parseInt(process.env.GRACEFUL_RECONNECT_TIMEOUT_MS, 10) ||
+ // The frontend allows actively editing users to keep the connection open
+ // for up-to ConnectionManager.MAX_RECONNECT_GRACEFULLY_INTERVAL=45s
+ // Permit an extra delay to account for slow/flaky connections.
+ (45 + 30) * 1000,
+
+ continualPubsubTraffic: process.env.CONTINUAL_PUBSUB_TRAFFIC || false,
+
+ checkEventOrder: process.env.CHECK_EVENT_ORDER || false,
+
+ publishOnIndividualChannels:
+ process.env.PUBLISH_ON_INDIVIDUAL_CHANNELS || false,
+
+ statusCheckInterval: parseInt(process.env.STATUS_CHECK_INTERVAL || '0'),
+
+ // The deployment colour for this app (if any). Used for blue green deploys.
+ deploymentColour: process.env.DEPLOYMENT_COLOUR,
+ // Load balancer health checks will return 200 only when this file contains
+ // the deployment colour for this app.
+ deploymentFile: process.env.DEPLOYMENT_FILE,
+
+ sentry: {
+ dsn: process.env.SENTRY_DSN,
+ },
+
+ errors: {
+ catchUncaughtErrors: true,
+ shutdownOnUncaughtError: true,
+ },
+}
+
+// console.log settings.redis
+module.exports = settings
diff --git a/services/real-time/config/settings.test.js b/services/real-time/config/settings.test.js
new file mode 100644
index 0000000000..9b426631b9
--- /dev/null
+++ b/services/real-time/config/settings.test.js
@@ -0,0 +1,5 @@
+module.exports = {
+ errors: {
+ catchUncaughtErrors: false,
+ },
+}
diff --git a/services/real-time/docker-compose.ci.yml b/services/real-time/docker-compose.ci.yml
new file mode 100644
index 0000000000..4e90129f69
--- /dev/null
+++ b/services/real-time/docker-compose.ci.yml
@@ -0,0 +1,49 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/sharelatex/sharelatex-dev-environment
+
+version: "2.3"
+
+services:
+ test_unit:
+ image: ci/$PROJECT_NAME:$BRANCH_NAME-$BUILD_NUMBER
+ user: node
+ command: npm run test:unit:_run
+ environment:
+ NODE_ENV: test
+ NODE_OPTIONS: "--unhandled-rejections=strict"
+
+
+ test_acceptance:
+ build: .
+ image: ci/$PROJECT_NAME:$BRANCH_NAME-$BUILD_NUMBER
+ environment:
+ ELASTIC_SEARCH_DSN: es:9200
+ REDIS_HOST: redis
+ QUEUES_REDIS_HOST: redis
+ MONGO_HOST: mongo
+ POSTGRES_HOST: postgres
+ MOCHA_GREP: ${MOCHA_GREP}
+ NODE_ENV: test
+ NODE_OPTIONS: "--unhandled-rejections=strict"
+ depends_on:
+ redis:
+ condition: service_healthy
+ user: node
+ command: npm run test:acceptance:_run
+
+
+ tar:
+ build: .
+ image: ci/$PROJECT_NAME:$BRANCH_NAME-$BUILD_NUMBER
+ volumes:
+ - ./:/tmp/build/
+ command: tar -czf /tmp/build/build.tar.gz --exclude=build.tar.gz --exclude-vcs .
+ user: root
+ redis:
+ image: redis
+ healthcheck:
+ test: ping="$$(redis-cli ping)" && [ "$$ping" = 'PONG' ]
+ interval: 1s
+ retries: 20
+
diff --git a/services/real-time/docker-compose.yml b/services/real-time/docker-compose.yml
new file mode 100644
index 0000000000..59ad1c5efe
--- /dev/null
+++ b/services/real-time/docker-compose.yml
@@ -0,0 +1,47 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/sharelatex/sharelatex-dev-environment
+
+version: "2.3"
+
+services:
+ test_unit:
+ image: node:12.22.3
+ volumes:
+ - .:/app
+ working_dir: /app
+ environment:
+ MOCHA_GREP: ${MOCHA_GREP}
+ NODE_ENV: test
+ NODE_OPTIONS: "--unhandled-rejections=strict"
+ command: npm run --silent test:unit
+ user: node
+
+ test_acceptance:
+ image: node:12.22.3
+ volumes:
+ - .:/app
+ working_dir: /app
+ environment:
+ ELASTIC_SEARCH_DSN: es:9200
+ REDIS_HOST: redis
+ QUEUES_REDIS_HOST: redis
+ MONGO_HOST: mongo
+ POSTGRES_HOST: postgres
+ MOCHA_GREP: ${MOCHA_GREP}
+ LOG_LEVEL: ERROR
+ NODE_ENV: test
+ NODE_OPTIONS: "--unhandled-rejections=strict"
+ user: node
+ depends_on:
+ redis:
+ condition: service_healthy
+ command: npm run --silent test:acceptance
+
+ redis:
+ image: redis
+ healthcheck:
+ test: ping=$$(redis-cli ping) && [ "$$ping" = 'PONG' ]
+ interval: 1s
+ retries: 20
+
diff --git a/services/real-time/nodemon.json b/services/real-time/nodemon.json
new file mode 100644
index 0000000000..e3e8817d90
--- /dev/null
+++ b/services/real-time/nodemon.json
@@ -0,0 +1,17 @@
+{
+ "ignore": [
+ ".git",
+ "node_modules/"
+ ],
+ "verbose": true,
+ "legacyWatch": true,
+ "execMap": {
+ "js": "npm run start"
+ },
+ "watch": [
+ "app/js/",
+ "app.js",
+ "config/"
+ ],
+ "ext": "js"
+}
diff --git a/services/real-time/package-lock.json b/services/real-time/package-lock.json
new file mode 100644
index 0000000000..8a7d062b76
--- /dev/null
+++ b/services/real-time/package-lock.json
@@ -0,0 +1,5587 @@
+{
+ "name": "real-time-sharelatex",
+ "version": "0.1.4",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
+ "@babel/code-frame": {
+ "version": "7.12.11",
+ "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.11.tgz",
+ "integrity": "sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==",
+ "dev": true,
+ "requires": {
+ "@babel/highlight": "^7.10.4"
+ }
+ },
+ "@babel/helper-validator-identifier": {
+ "version": "7.14.5",
+ "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.5.tgz",
+ "integrity": "sha512-5lsetuxCLilmVGyiLEfoHBRX8UCFD+1m2x3Rj97WrW3V7H3u4RWRXA4evMjImCsin2J2YT0QaVDGf+z8ondbAg==",
+ "dev": true
+ },
+ "@babel/highlight": {
+ "version": "7.14.5",
+ "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.14.5.tgz",
+ "integrity": "sha512-qf9u2WFWVV0MppaL877j2dBtQIDgmidgjGk5VIMw3OadXvYaXn66U1BFlH2t4+t3i+8PhedppRv+i40ABzd+gg==",
+ "dev": true,
+ "requires": {
+ "@babel/helper-validator-identifier": "^7.14.5",
+ "chalk": "^2.0.0",
+ "js-tokens": "^4.0.0"
+ }
+ },
+ "@eslint/eslintrc": {
+ "version": "0.4.2",
+ "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-0.4.2.tgz",
+ "integrity": "sha512-8nmGq/4ycLpIwzvhI4tNDmQztZ8sp+hI7cyG8i1nQDhkAbRzHpXPidRAHlNvCZQpJTKw5ItIpMw9RSToGF00mg==",
+ "dev": true,
+ "requires": {
+ "ajv": "^6.12.4",
+ "debug": "^4.1.1",
+ "espree": "^7.3.0",
+ "globals": "^13.9.0",
+ "ignore": "^4.0.6",
+ "import-fresh": "^3.2.1",
+ "js-yaml": "^3.13.1",
+ "minimatch": "^3.0.4",
+ "strip-json-comments": "^3.1.1"
+ },
+ "dependencies": {
+ "ajv": {
+ "version": "6.12.6",
+ "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+ "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+ "dev": true,
+ "requires": {
+ "fast-deep-equal": "^3.1.1",
+ "fast-json-stable-stringify": "^2.0.0",
+ "json-schema-traverse": "^0.4.1",
+ "uri-js": "^4.2.2"
+ }
+ },
+ "debug": {
+ "version": "4.3.2",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.2.tgz",
+ "integrity": "sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==",
+ "dev": true,
+ "requires": {
+ "ms": "2.1.2"
+ }
+ },
+ "ms": {
+ "version": "2.1.2",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+ "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+ "dev": true
+ }
+ }
+ },
+ "@google-cloud/common": {
+ "version": "3.6.0",
+ "resolved": "https://registry.npmjs.org/@google-cloud/common/-/common-3.6.0.tgz",
+ "integrity": "sha512-aHIFTqJZmeTNO9md8XxV+ywuvXF3xBm5WNmgWeeCK+XN5X+kGW0WEX94wGwj+/MdOnrVf4dL2RvSIt9J5yJG6Q==",
+ "requires": {
+ "@google-cloud/projectify": "^2.0.0",
+ "@google-cloud/promisify": "^2.0.0",
+ "arrify": "^2.0.1",
+ "duplexify": "^4.1.1",
+ "ent": "^2.2.0",
+ "extend": "^3.0.2",
+ "google-auth-library": "^7.0.2",
+ "retry-request": "^4.1.1",
+ "teeny-request": "^7.0.0"
+ },
+ "dependencies": {
+ "duplexify": {
+ "version": "4.1.1",
+ "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-4.1.1.tgz",
+ "integrity": "sha512-DY3xVEmVHTv1wSzKNbwoU6nVjzI369Y6sPoqfYr0/xlx3IdX2n94xIszTcjPO8W8ZIv0Wb0PXNcjuZyT4wiICA==",
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+}
diff --git a/services/real-time/package.json b/services/real-time/package.json
new file mode 100644
index 0000000000..308957330d
--- /dev/null
+++ b/services/real-time/package.json
@@ -0,0 +1,65 @@
+{
+ "name": "real-time-sharelatex",
+ "version": "0.1.4",
+ "description": "The socket.io layer of ShareLaTeX for real-time editor interactions",
+ "author": "ShareLaTeX ",
+ "license": "AGPL-3.0-only",
+ "private": true,
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/sharelatex/real-time-sharelatex.git"
+ },
+ "scripts": {
+ "start": "node $NODE_APP_OPTIONS app.js",
+ "test:acceptance:_run": "mocha --recursive --reporter spec --timeout 15000 --exit $@ test/acceptance/js",
+ "test:acceptance": "npm run test:acceptance:_run -- --grep=$MOCHA_GREP",
+ "test:unit:_run": "mocha --recursive --reporter spec $@ test/unit/js",
+ "test:unit": "npm run test:unit:_run -- --grep=$MOCHA_GREP",
+ "nodemon": "nodemon --config nodemon.json",
+ "lint": "eslint --max-warnings 0 --format unix .",
+ "format": "prettier --list-different $PWD/'**/*.js'",
+ "format:fix": "prettier --write $PWD/'**/*.js'",
+ "lint:fix": "eslint --fix ."
+ },
+ "dependencies": {
+ "@overleaf/metrics": "^3.5.1",
+ "@overleaf/o-error": "^3.1.0",
+ "@overleaf/redis-wrapper": "^2.0.0",
+ "@overleaf/settings": "^2.1.1",
+ "async": "^0.9.0",
+ "base64id": "0.1.0",
+ "basic-auth-connect": "^1.0.0",
+ "body-parser": "^1.19.0",
+ "bunyan": "^1.8.15",
+ "connect-redis": "^2.1.0",
+ "cookie-parser": "^1.4.5",
+ "express": "^4.17.1",
+ "express-session": "^1.17.1",
+ "logger-sharelatex": "^2.2.0",
+ "request": "^2.88.2",
+ "socket.io": "https://github.com/overleaf/socket.io/archive/0.9.19-overleaf-5.tar.gz",
+ "socket.io-client": "https://github.com/overleaf/socket.io-client/archive/0.9.17-overleaf-3.tar.gz",
+ "underscore": "1.13.1"
+ },
+ "devDependencies": {
+ "chai": "^4.2.0",
+ "chai-as-promised": "^7.1.1",
+ "cookie-signature": "^1.1.0",
+ "eslint": "^7.21.0",
+ "eslint-config-prettier": "^8.1.0",
+ "eslint-config-standard": "^16.0.2",
+ "eslint-plugin-chai-expect": "^2.2.0",
+ "eslint-plugin-chai-friendly": "^0.6.0",
+ "eslint-plugin-import": "^2.22.1",
+ "eslint-plugin-mocha": "^8.0.0",
+ "eslint-plugin-node": "^11.1.0",
+ "eslint-plugin-prettier": "^3.1.2",
+ "eslint-plugin-promise": "^4.2.1",
+ "mocha": "^8.3.2",
+ "prettier": "^2.2.1",
+ "sandboxed-module": "~0.3.0",
+ "sinon": "^9.2.4",
+ "timekeeper": "0.0.4",
+ "uid-safe": "^2.1.5"
+ }
+}
diff --git a/services/real-time/test/acceptance/js/ApplyUpdateTests.js b/services/real-time/test/acceptance/js/ApplyUpdateTests.js
new file mode 100644
index 0000000000..bfa05d0b35
--- /dev/null
+++ b/services/real-time/test/acceptance/js/ApplyUpdateTests.js
@@ -0,0 +1,475 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS201: Simplify complex destructure assignments
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const async = require('async')
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.documentupdater)
+
+const redisSettings = settings.redis
+
+const PENDING_UPDATES_LIST_KEYS = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].map(n => {
+ let key = 'pending-updates-list'
+ if (n !== 0) {
+ key += `-${n}`
+ }
+ return key
+})
+
+function getPendingUpdatesList(cb) {
+ Promise.all(PENDING_UPDATES_LIST_KEYS.map(key => rclient.lrange(key, 0, -1)))
+ .then(results => {
+ cb(
+ null,
+ results.reduce((acc, more) => {
+ if (more.length) {
+ acc.push(...more)
+ }
+ return acc
+ }, [])
+ )
+ })
+ .catch(cb)
+}
+
+function clearPendingUpdatesList(cb) {
+ Promise.all(PENDING_UPDATES_LIST_KEYS.map(key => rclient.del(key)))
+ .then(() => cb(null))
+ .catch(cb)
+}
+
+describe('applyOtUpdate', function () {
+ before(function () {
+ return (this.update = {
+ op: [{ i: 'foo', p: 42 }],
+ })
+ })
+ describe('when authorized', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'applyOtUpdate',
+ this.doc_id,
+ this.update,
+ cb
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should push the doc into the pending updates list', function (done) {
+ getPendingUpdatesList((error, ...rest) => {
+ const [doc_id] = Array.from(rest[0])
+ doc_id.should.equal(`${this.project_id}:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+
+ it('should push the update into redis', function (done) {
+ rclient.lrange(
+ redisSettings.documentupdater.key_schema.pendingUpdates({
+ doc_id: this.doc_id,
+ }),
+ 0,
+ -1,
+ (error, ...rest) => {
+ let [update] = Array.from(rest[0])
+ update = JSON.parse(update)
+ update.op.should.deep.equal(this.update.op)
+ update.meta.should.deep.equal({
+ source: this.client.publicId,
+ user_id: this.user_id,
+ })
+ return done()
+ }
+ )
+ return null
+ })
+
+ return after(function (done) {
+ return async.series(
+ [
+ cb => clearPendingUpdatesList(cb),
+ cb =>
+ rclient.del(
+ 'DocsWithPendingUpdates',
+ `${this.project_id}:${this.doc_id}`,
+ cb
+ ),
+ cb =>
+ rclient.del(
+ redisSettings.documentupdater.key_schema.pendingUpdates(
+ this.doc_id
+ ),
+ cb
+ ),
+ ],
+ done
+ )
+ })
+ })
+
+ describe('when authorized with a huge edit update', function () {
+ before(function (done) {
+ this.update = {
+ op: {
+ p: 12,
+ t: 'update is too large'.repeat(1024 * 400), // >7MB
+ },
+ }
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ this.client.on('connectionAccepted', cb)
+ return this.client.on('otUpdateError', otUpdateError => {
+ this.otUpdateError = otUpdateError
+ })
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'applyOtUpdate',
+ this.doc_id,
+ this.update,
+ error => {
+ this.error = error
+ return cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should not return an error', function () {
+ return expect(this.error).to.not.exist
+ })
+
+ it('should send an otUpdateError to the client', function (done) {
+ return setTimeout(() => {
+ expect(this.otUpdateError).to.exist
+ return done()
+ }, 300)
+ })
+
+ it('should disconnect the client', function (done) {
+ return setTimeout(() => {
+ this.client.socket.connected.should.equal(false)
+ return done()
+ }, 300)
+ })
+
+ return it('should not put the update in redis', function (done) {
+ rclient.llen(
+ redisSettings.documentupdater.key_schema.pendingUpdates({
+ doc_id: this.doc_id,
+ }),
+ (error, len) => {
+ len.should.equal(0)
+ return done()
+ }
+ )
+ return null
+ })
+ })
+
+ describe('when authorized to read-only with an edit update', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readOnly',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'applyOtUpdate',
+ this.doc_id,
+ this.update,
+ error => {
+ this.error = error
+ return cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should return an error', function () {
+ return expect(this.error).to.exist
+ })
+
+ it('should disconnect the client', function (done) {
+ return setTimeout(() => {
+ this.client.socket.connected.should.equal(false)
+ return done()
+ }, 300)
+ })
+
+ return it('should not put the update in redis', function (done) {
+ rclient.llen(
+ redisSettings.documentupdater.key_schema.pendingUpdates({
+ doc_id: this.doc_id,
+ }),
+ (error, len) => {
+ len.should.equal(0)
+ return done()
+ }
+ )
+ return null
+ })
+ })
+
+ return describe('when authorized to read-only with a comment update', function () {
+ before(function (done) {
+ this.comment_update = {
+ op: [{ c: 'foo', p: 42 }],
+ }
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readOnly',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'applyOtUpdate',
+ this.doc_id,
+ this.comment_update,
+ cb
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should push the doc into the pending updates list', function (done) {
+ getPendingUpdatesList((error, ...rest) => {
+ const [doc_id] = Array.from(rest[0])
+ doc_id.should.equal(`${this.project_id}:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+
+ it('should push the update into redis', function (done) {
+ rclient.lrange(
+ redisSettings.documentupdater.key_schema.pendingUpdates({
+ doc_id: this.doc_id,
+ }),
+ 0,
+ -1,
+ (error, ...rest) => {
+ let [update] = Array.from(rest[0])
+ update = JSON.parse(update)
+ update.op.should.deep.equal(this.comment_update.op)
+ update.meta.should.deep.equal({
+ source: this.client.publicId,
+ user_id: this.user_id,
+ })
+ return done()
+ }
+ )
+ return null
+ })
+
+ return after(function (done) {
+ return async.series(
+ [
+ cb => clearPendingUpdatesList(cb),
+ cb =>
+ rclient.del(
+ 'DocsWithPendingUpdates',
+ `${this.project_id}:${this.doc_id}`,
+ cb
+ ),
+ cb =>
+ rclient.del(
+ redisSettings.documentupdater.key_schema.pendingUpdates({
+ doc_id: this.doc_id,
+ }),
+ cb
+ ),
+ ],
+ done
+ )
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/ClientTrackingTests.js b/services/real-time/test/acceptance/js/ClientTrackingTests.js
new file mode 100644
index 0000000000..0fc6c6cd5b
--- /dev/null
+++ b/services/real-time/test/acceptance/js/ClientTrackingTests.js
@@ -0,0 +1,253 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockWebServer = require('./helpers/MockWebServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+describe('clientTracking', function () {
+ describe('when a client updates its cursor location', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: { name: 'Test Project' },
+ },
+ (error, { user_id, project_id }) => {
+ this.user_id = user_id
+ this.project_id = project_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.clientB = RealTimeClient.connect()
+ return this.clientB.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.clientB.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ this.updates = []
+ this.clientB.on('clientTracking.clientUpdated', data => {
+ return this.updates.push(data)
+ })
+
+ return this.clientA.emit(
+ 'clientTracking.updatePosition',
+ {
+ row: (this.row = 42),
+ column: (this.column = 36),
+ doc_id: this.doc_id,
+ },
+ error => {
+ if (error != null) {
+ throw error
+ }
+ return setTimeout(cb, 300)
+ }
+ )
+ }, // Give the message a chance to reach client B.
+ ],
+ done
+ )
+ })
+
+ it('should tell other clients about the update', function () {
+ return this.updates.should.deep.equal([
+ {
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ id: this.clientA.publicId,
+ user_id: this.user_id,
+ name: 'Joe Bloggs',
+ },
+ ])
+ })
+
+ return it('should record the update in getConnectedUsers', function (done) {
+ return this.clientB.emit(
+ 'clientTracking.getConnectedUsers',
+ (error, users) => {
+ for (const user of Array.from(users)) {
+ if (user.client_id === this.clientA.publicId) {
+ expect(user.cursorData).to.deep.equal({
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ })
+ return done()
+ }
+ }
+ throw new Error('user was never found')
+ }
+ )
+ })
+ })
+
+ return describe('when an anonymous client updates its cursor location', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: { name: 'Test Project' },
+ publicAccess: 'readAndWrite',
+ },
+ (error, { user_id, project_id }) => {
+ this.user_id = user_id
+ this.project_id = project_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ return RealTimeClient.setSession({}, cb)
+ },
+
+ cb => {
+ this.anonymous = RealTimeClient.connect()
+ return this.anonymous.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.anonymous.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ return this.anonymous.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ this.updates = []
+ this.clientA.on('clientTracking.clientUpdated', data => {
+ return this.updates.push(data)
+ })
+
+ return this.anonymous.emit(
+ 'clientTracking.updatePosition',
+ {
+ row: (this.row = 42),
+ column: (this.column = 36),
+ doc_id: this.doc_id,
+ },
+ error => {
+ if (error != null) {
+ throw error
+ }
+ return setTimeout(cb, 300)
+ }
+ )
+ }, // Give the message a chance to reach client B.
+ ],
+ done
+ )
+ })
+
+ return it('should tell other clients about the update', function () {
+ return this.updates.should.deep.equal([
+ {
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ id: this.anonymous.publicId,
+ user_id: 'anonymous-user',
+ name: '',
+ },
+ ])
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/DrainManagerTests.js b/services/real-time/test/acceptance/js/DrainManagerTests.js
new file mode 100644
index 0000000000..0f4d67fb3d
--- /dev/null
+++ b/services/real-time/test/acceptance/js/DrainManagerTests.js
@@ -0,0 +1,135 @@
+/* eslint-disable
+ camelcase,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const RealTimeClient = require('./helpers/RealTimeClient')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const { expect } = require('chai')
+
+const async = require('async')
+const request = require('request')
+
+const Settings = require('@overleaf/settings')
+
+const drain = function (rate, callback) {
+ request.post(
+ {
+ url: `http://localhost:3026/drain?rate=${rate}`,
+ auth: {
+ user: Settings.internal.realTime.user,
+ pass: Settings.internal.realTime.pass,
+ },
+ },
+ (error, response, data) => callback(error, data)
+ )
+ return null
+}
+
+describe('DrainManagerTests', function () {
+ before(function (done) {
+ FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return done()
+ }
+ )
+ return null
+ })
+
+ before(function (done) {
+ // cleanup to speedup reconnecting
+ this.timeout(10000)
+ return RealTimeClient.disconnectAllClients(done)
+ })
+
+ // trigger and check cleanup
+ it('should have disconnected all previous clients', function (done) {
+ return RealTimeClient.getConnectedClients((error, data) => {
+ if (error) {
+ return done(error)
+ }
+ expect(data.length).to.equal(0)
+ return done()
+ })
+ })
+
+ return describe('with two clients in the project', function () {
+ beforeEach(function (done) {
+ return async.series(
+ [
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.clientB = RealTimeClient.connect()
+ return this.clientB.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.clientB.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ return describe('starting to drain', function () {
+ beforeEach(function (done) {
+ return async.parallel(
+ [
+ cb => {
+ return this.clientA.on('reconnectGracefully', cb)
+ },
+ cb => {
+ return this.clientB.on('reconnectGracefully', cb)
+ },
+
+ cb => drain(2, cb),
+ ],
+ done
+ )
+ })
+
+ afterEach(function (done) {
+ return drain(0, done)
+ }) // reset drain
+
+ it('should not timeout', function () {
+ return expect(true).to.equal(true)
+ })
+
+ return it('should not have disconnected', function () {
+ expect(this.clientA.socket.connected).to.equal(true)
+ return expect(this.clientB.socket.connected).to.equal(true)
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/EarlyDisconnect.js b/services/real-time/test/acceptance/js/EarlyDisconnect.js
new file mode 100644
index 0000000000..14356f42ac
--- /dev/null
+++ b/services/real-time/test/acceptance/js/EarlyDisconnect.js
@@ -0,0 +1,288 @@
+/* eslint-disable
+ camelcase,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const async = require('async')
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
+const MockWebServer = require('./helpers/MockWebServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.pubsub)
+const rclientRT = redis.createClient(settings.redis.realtime)
+const KeysRT = settings.redis.realtime.key_schema
+
+describe('EarlyDisconnect', function () {
+ before(function (done) {
+ return MockDocUpdaterServer.run(done)
+ })
+
+ describe('when the client disconnects before joinProject completes', function () {
+ before(function () {
+ // slow down web-api requests to force the race condition
+ let joinProject
+ this.actualWebAPIjoinProject = joinProject = MockWebServer.joinProject
+ return (MockWebServer.joinProject = (project_id, user_id, cb) =>
+ setTimeout(() => joinProject(project_id, user_id, cb), 300))
+ })
+
+ after(function () {
+ return (MockWebServer.joinProject = this.actualWebAPIjoinProject)
+ })
+
+ beforeEach(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ () => {}
+ )
+ // disconnect before joinProject completes
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+
+ cb => {
+ // wait for joinDoc and subscribe
+ return setTimeout(cb, 500)
+ },
+ ],
+ done
+ )
+ })
+
+ // we can force the race condition, there is no need to repeat too often
+ return Array.from(Array.from({ length: 5 }).map((_, i) => i + 1)).map(
+ attempt =>
+ it(`should not subscribe to the pub/sub channel anymore (race ${attempt})`, function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ expect(resp).to.not.include(`editor-events:${this.project_id}`)
+ return done()
+ })
+ return null
+ })
+ )
+ })
+
+ describe('when the client disconnects before joinDoc completes', function () {
+ beforeEach(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ // disconnect before joinDoc completes
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+
+ cb => {
+ // wait for subscribe and unsubscribe
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ // we can not force the race condition, so we have to try many times
+ return Array.from(Array.from({ length: 20 }).map((_, i) => i + 1)).map(
+ attempt =>
+ it(`should not subscribe to the pub/sub channels anymore (race ${attempt})`, function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ expect(resp).to.not.include(`editor-events:${this.project_id}`)
+
+ return rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ expect(resp).to.not.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ })
+ return null
+ })
+ )
+ })
+
+ return describe('when the client disconnects before clientTracking.updatePosition starts', function () {
+ beforeEach(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ this.clientA.emit(
+ 'clientTracking.updatePosition',
+ {
+ row: 42,
+ column: 36,
+ doc_id: this.doc_id,
+ },
+ () => {}
+ )
+ // disconnect before updateClientPosition completes
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+
+ cb => {
+ // wait for updateClientPosition
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ // we can not force the race condition, so we have to try many times
+ return Array.from(Array.from({ length: 20 }).map((_, i) => i + 1)).map(
+ attempt =>
+ it(`should not show the client as connected (race ${attempt})`, function (done) {
+ rclientRT.smembers(
+ KeysRT.clientsInProject({ project_id: this.project_id }),
+ (err, results) => {
+ if (err) {
+ return done(err)
+ }
+ expect(results).to.deep.equal([])
+ return done()
+ }
+ )
+ return null
+ })
+ )
+ })
+})
diff --git a/services/real-time/test/acceptance/js/HttpControllerTests.js b/services/real-time/test/acceptance/js/HttpControllerTests.js
new file mode 100644
index 0000000000..8704c18135
--- /dev/null
+++ b/services/real-time/test/acceptance/js/HttpControllerTests.js
@@ -0,0 +1,117 @@
+/* eslint-disable
+ camelcase,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const async = require('async')
+const { expect } = require('chai')
+const request = require('request').defaults({
+ baseUrl: 'http://localhost:3026',
+})
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const FixturesManager = require('./helpers/FixturesManager')
+
+describe('HttpControllerTests', function () {
+ describe('without a user', function () {
+ return it('should return 404 for the client view', function (done) {
+ const client_id = 'not-existing'
+ return request.get(
+ {
+ url: `/clients/${client_id}`,
+ json: true,
+ },
+ (error, response, data) => {
+ if (error) {
+ return done(error)
+ }
+ expect(response.statusCode).to.equal(404)
+ return done()
+ }
+ )
+ })
+ })
+
+ return describe('with a user and after joining a project', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ },
+ (error, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {},
+ (error, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit('joinDoc', this.doc_id, cb)
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should send a client view', function (done) {
+ return request.get(
+ {
+ url: `/clients/${this.client.socket.sessionid}`,
+ json: true,
+ },
+ (error, response, data) => {
+ if (error) {
+ return done(error)
+ }
+ expect(response.statusCode).to.equal(200)
+ expect(data.connected_time).to.exist
+ delete data.connected_time
+ // .email is not set in the session
+ delete data.email
+ expect(data).to.deep.equal({
+ client_id: this.client.socket.sessionid,
+ first_name: 'Joe',
+ last_name: 'Bloggs',
+ project_id: this.project_id,
+ user_id: this.user_id,
+ rooms: [this.project_id, this.doc_id],
+ })
+ return done()
+ }
+ )
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/JoinDocTests.js b/services/real-time/test/acceptance/js/JoinDocTests.js
new file mode 100644
index 0000000000..abe8714cca
--- /dev/null
+++ b/services/real-time/test/acceptance/js/JoinDocTests.js
@@ -0,0 +1,563 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+describe('joinDoc', function () {
+ before(function () {
+ this.lines = ['test', 'doc', 'lines']
+ this.version = 42
+ this.ops = ['mock', 'doc', 'ops']
+ return (this.ranges = { mock: 'ranges' })
+ })
+
+ describe('when authorised readAndWrite', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, -1)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('when authorised readOnly', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readOnly',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, -1)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('when authorised as owner', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, -1)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ // It is impossible to write an acceptance test to test joining an unauthorized
+ // project, since joinProject already catches that. If you can join a project,
+ // then you can join a doc in that project.
+
+ describe('with a fromVersion', function () {
+ before(function (done) {
+ this.fromVersion = 36
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ this.fromVersion,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater with the fromVersion', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, this.fromVersion)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('with options', function () {
+ before(function (done) {
+ this.options = { encodeRanges: true }
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ this.options,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater with the default fromVersion', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, -1)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ return describe('with fromVersion and options', function () {
+ before(function (done) {
+ this.fromVersion = 36
+ this.options = { encodeRanges: true }
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ {
+ lines: this.lines,
+ version: this.version,
+ ops: this.ops,
+ ranges: this.ranges,
+ },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ this.fromVersion,
+ this.options,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the doc from the doc updater with the fromVersion', function () {
+ return MockDocUpdaterServer.getDocument
+ .calledWith(this.project_id, this.doc_id, this.fromVersion)
+ .should.equal(true)
+ })
+
+ it('should return the doc lines, version, ranges and ops', function () {
+ return this.returnedArgs.should.deep.equal([
+ this.lines,
+ this.version,
+ this.ops,
+ this.ranges,
+ ])
+ })
+
+ return it('should have joined the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/JoinProjectTests.js b/services/real-time/test/acceptance/js/JoinProjectTests.js
new file mode 100644
index 0000000000..63e46d9a3a
--- /dev/null
+++ b/services/real-time/test/acceptance/js/JoinProjectTests.js
@@ -0,0 +1,328 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockWebServer = require('./helpers/MockWebServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+describe('joinProject', function () {
+ describe('when authorized', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should get the project from web', function () {
+ return MockWebServer.joinProject
+ .calledWith(this.project_id, this.user_id)
+ .should.equal(true)
+ })
+
+ it('should return the project', function () {
+ return this.project.should.deep.equal({
+ name: 'Test Project',
+ })
+ })
+
+ it('should return the privilege level', function () {
+ return this.privilegeLevel.should.equal('owner')
+ })
+
+ it('should return the protocolVersion', function () {
+ return this.protocolVersion.should.equal(2)
+ })
+
+ it('should have joined the project room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.project_id)).to.equal(
+ true
+ )
+ return done()
+ }
+ )
+ })
+
+ return it('should have marked the user as connected', function (done) {
+ return this.client.emit(
+ 'clientTracking.getConnectedUsers',
+ (error, users) => {
+ let connected = false
+ for (const user of Array.from(users)) {
+ if (
+ user.client_id === this.client.publicId &&
+ user.user_id === this.user_id
+ ) {
+ connected = true
+ break
+ }
+ }
+ expect(connected).to.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('when not authorized', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: null,
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.error = error
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should return an error', function () {
+ return this.error.message.should.equal('not authorized')
+ })
+
+ return it('should not have joined the project room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.project_id)).to.equal(
+ false
+ )
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('when not authorized and web replies with a 403', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ project_id: 'forbidden',
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.error = error
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should return an error', function () {
+ this.error.message.should.equal('not authorized')
+ })
+
+ it('should not have joined the project room', function (done) {
+ RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.project_id)).to.equal(
+ false
+ )
+ done()
+ }
+ )
+ })
+ })
+
+ describe('when deleted and web replies with a 404', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ project_id: 'not-found',
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.error = error
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ it('should return an error', function () {
+ this.error.code.should.equal('ProjectNotFound')
+ })
+
+ it('should not have joined the project room', function (done) {
+ RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.project_id)).to.equal(
+ false
+ )
+ done()
+ }
+ )
+ })
+ })
+
+ return describe('when over rate limit', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: 'rate-limited' },
+ error => {
+ this.error = error
+ return cb()
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should return a TooManyRequests error code', function () {
+ this.error.message.should.equal('rate-limit hit when joining project')
+ return this.error.code.should.equal('TooManyRequests')
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/LeaveDocTests.js b/services/real-time/test/acceptance/js/LeaveDocTests.js
new file mode 100644
index 0000000000..61a3288176
--- /dev/null
+++ b/services/real-time/test/acceptance/js/LeaveDocTests.js
@@ -0,0 +1,174 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const sinon = require('sinon')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
+const FixturesManager = require('./helpers/FixturesManager')
+const logger = require('logger-sharelatex')
+
+const async = require('async')
+
+describe('leaveDoc', function () {
+ before(function () {
+ this.lines = ['test', 'doc', 'lines']
+ this.version = 42
+ this.ops = ['mock', 'doc', 'ops']
+ sinon.spy(logger, 'error')
+ sinon.spy(logger, 'warn')
+ sinon.spy(logger, 'log')
+ return (this.other_doc_id = FixturesManager.getRandomId())
+ })
+
+ after(function () {
+ logger.error.restore() // remove the spy
+ logger.warn.restore()
+ return logger.log.restore()
+ })
+
+ return describe('when joined to a doc', function () {
+ beforeEach(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'readAndWrite',
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ cb
+ )
+ },
+
+ cb => {
+ return this.client.emit(
+ 'joinDoc',
+ this.doc_id,
+ (error, ...rest) => {
+ ;[...this.returnedArgs] = Array.from(rest)
+ return cb(error)
+ }
+ )
+ },
+ ],
+ done
+ )
+ })
+
+ describe('then leaving the doc', function () {
+ beforeEach(function (done) {
+ return this.client.emit('leaveDoc', this.doc_id, error => {
+ if (error != null) {
+ throw error
+ }
+ return done()
+ })
+ })
+
+ return it('should have left the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(
+ false
+ )
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('when sending a leaveDoc request before the previous joinDoc request has completed', function () {
+ beforeEach(function (done) {
+ this.client.emit('leaveDoc', this.doc_id, () => {})
+ this.client.emit('joinDoc', this.doc_id, () => {})
+ return this.client.emit('leaveDoc', this.doc_id, error => {
+ if (error != null) {
+ throw error
+ }
+ return done()
+ })
+ })
+
+ it('should not trigger an error', function () {
+ return sinon.assert.neverCalledWith(
+ logger.error,
+ sinon.match.any,
+ "not subscribed - shouldn't happen"
+ )
+ })
+
+ return it('should have left the doc room', function (done) {
+ return RealTimeClient.getConnectedClient(
+ this.client.socket.sessionid,
+ (error, client) => {
+ expect(Array.from(client.rooms).includes(this.doc_id)).to.equal(
+ false
+ )
+ return done()
+ }
+ )
+ })
+ })
+
+ return describe('when sending a leaveDoc for a room the client has not joined ', function () {
+ beforeEach(function (done) {
+ return this.client.emit('leaveDoc', this.other_doc_id, error => {
+ if (error != null) {
+ throw error
+ }
+ return done()
+ })
+ })
+
+ return it('should trigger a low level message only', function () {
+ return sinon.assert.calledWith(
+ logger.log,
+ sinon.match.any,
+ 'ignoring request from client to leave room it is not in'
+ )
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/LeaveProjectTests.js b/services/real-time/test/acceptance/js/LeaveProjectTests.js
new file mode 100644
index 0000000000..9c71678087
--- /dev/null
+++ b/services/real-time/test/acceptance/js/LeaveProjectTests.js
@@ -0,0 +1,270 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-throw-literal,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+const settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.pubsub)
+
+describe('leaveProject', function () {
+ before(function (done) {
+ return MockDocUpdaterServer.run(done)
+ })
+
+ describe('with other clients in the project', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.clientB = RealTimeClient.connect()
+ this.clientB.on('connectionAccepted', cb)
+
+ this.clientBDisconnectMessages = []
+ return this.clientB.on(
+ 'clientTracking.clientDisconnected',
+ data => {
+ return this.clientBDisconnectMessages.push(data)
+ }
+ )
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return this.clientB.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+ cb => {
+ return this.clientB.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ // leaveProject is called when the client disconnects
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+
+ cb => {
+ // The API waits a little while before flushing changes
+ return setTimeout(done, 1000)
+ },
+ ],
+ done
+ )
+ })
+
+ it('should emit a disconnect message to the room', function () {
+ return this.clientBDisconnectMessages.should.deep.equal([
+ this.clientA.publicId,
+ ])
+ })
+
+ it('should no longer list the client in connected users', function (done) {
+ return this.clientB.emit(
+ 'clientTracking.getConnectedUsers',
+ (error, users) => {
+ for (const user of Array.from(users)) {
+ if (user.client_id === this.clientA.publicId) {
+ throw 'Expected clientA to not be listed in connected users'
+ }
+ }
+ return done()
+ }
+ )
+ })
+
+ it('should not flush the project to the document updater', function () {
+ return MockDocUpdaterServer.deleteProject
+ .calledWith(this.project_id)
+ .should.equal(false)
+ })
+
+ it('should remain subscribed to the editor-events channels', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.include(`editor-events:${this.project_id}`)
+ return done()
+ })
+ return null
+ })
+
+ return it('should remain subscribed to the applied-ops channels', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+
+ return describe('with no other clients in the project', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connect', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+ cb => {
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ // leaveProject is called when the client disconnects
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+
+ cb => {
+ // The API waits a little while before flushing changes
+ return setTimeout(done, 1000)
+ },
+ ],
+ done
+ )
+ })
+
+ it('should flush the project to the document updater', function () {
+ return MockDocUpdaterServer.deleteProject
+ .calledWith(this.project_id)
+ .should.equal(true)
+ })
+
+ it('should not subscribe to the editor-events channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`editor-events:${this.project_id}`)
+ return done()
+ })
+ return null
+ })
+
+ return it('should not subscribe to the applied-ops channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/MatrixTests.js b/services/real-time/test/acceptance/js/MatrixTests.js
new file mode 100644
index 0000000000..690a61fc24
--- /dev/null
+++ b/services/real-time/test/acceptance/js/MatrixTests.js
@@ -0,0 +1,477 @@
+/*
+This test suite is a multi level matrix which allows us to test many cases
+ with all kinds of setups.
+
+Users/Actors are defined in USERS and are a low level entity that does connect
+ to a real-time pod. A typical UserItem is:
+
+ someDescriptiveNameForTheTestSuite: {
+ setup(cb) {
+ //
+ const options = { client: RealTimeClient.connect(), foo: 'bar' }
+ cb(null, options)
+ }
+ }
+
+Sessions are a set of actions that a User performs in the life-cycle of a
+ real-time session, before they try something weird. A typical SessionItem is:
+
+ someOtherDescriptiveNameForTheTestSuite: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'RPC_ENDPOINT', args: [...] }
+ ])
+ }
+ }
+
+Finally there are InvalidRequests which are the weird actions I hinted on in
+ the Sessions section. The defined actions may be marked as 'failed' to denote
+ that real-time rejects them with an (for this test) expected error.
+ A typical InvalidRequestItem is:
+
+ joinOwnProject: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'RPC_ENDPOINT', args: [...], failed: true }
+ ])
+ }
+ }
+
+There is additional meta-data that UserItems and SessionItems may use to skip
+ certain areas of the matrix. Theses are:
+
+- Has the User an own project that they join as part of the Session?
+ UserItem: { hasOwnProject: true, setup(cb) { cb(null, { project_id, ... }) }}
+ SessionItem: { needsOwnProject: true }
+ */
+/* eslint-disable
+ camelcase,
+*/
+const { expect } = require('chai')
+const async = require('async')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const settings = require('@overleaf/settings')
+const Keys = settings.redis.documentupdater.key_schema
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.pubsub)
+
+function getPendingUpdates(doc_id, cb) {
+ rclient.lrange(Keys.pendingUpdates({ doc_id }), 0, 10, cb)
+}
+function cleanupPreviousUpdates(doc_id, cb) {
+ rclient.del(Keys.pendingUpdates({ doc_id }), cb)
+}
+
+describe('MatrixTests', function () {
+ let privateProjectId, privateDocId, readWriteProjectId, readWriteDocId
+
+ let privateClient
+ before(function setupPrivateProject(done) {
+ FixturesManager.setUpEditorSession(
+ { privilegeLevel: 'owner' },
+ (err, { project_id, doc_id }) => {
+ if (err) return done(err)
+ privateProjectId = project_id
+ privateDocId = doc_id
+ privateClient = RealTimeClient.connect()
+ privateClient.on('connectionAccepted', () => {
+ privateClient.emit(
+ 'joinProject',
+ { project_id: privateProjectId },
+ err => {
+ if (err) return done(err)
+ privateClient.emit('joinDoc', privateDocId, done)
+ }
+ )
+ })
+ }
+ )
+ })
+
+ before(function setupReadWriteProject(done) {
+ FixturesManager.setUpEditorSession(
+ {
+ publicAccess: 'readAndWrite',
+ },
+ (err, { project_id, doc_id }) => {
+ readWriteProjectId = project_id
+ readWriteDocId = doc_id
+ done(err)
+ }
+ )
+ })
+
+ const USER_SETUP = {
+ anonymous: {
+ setup(cb) {
+ RealTimeClient.setSession({}, err => {
+ if (err) return cb(err)
+ cb(null, {
+ client: RealTimeClient.connect(),
+ })
+ })
+ },
+ },
+
+ registered: {
+ setup(cb) {
+ const user_id = FixturesManager.getRandomId()
+ RealTimeClient.setSession(
+ {
+ user: {
+ _id: user_id,
+ first_name: 'Joe',
+ last_name: 'Bloggs',
+ },
+ },
+ err => {
+ if (err) return cb(err)
+ cb(null, {
+ user_id,
+ client: RealTimeClient.connect(),
+ })
+ }
+ )
+ },
+ },
+
+ registeredWithOwnedProject: {
+ setup(cb) {
+ FixturesManager.setUpEditorSession(
+ { privilegeLevel: 'owner' },
+ (err, { project_id, user_id, doc_id }) => {
+ if (err) return cb(err)
+ cb(null, {
+ user_id,
+ project_id,
+ doc_id,
+ client: RealTimeClient.connect(),
+ })
+ }
+ )
+ },
+ hasOwnProject: true,
+ },
+ }
+
+ Object.entries(USER_SETUP).forEach(level0 => {
+ const [userDescription, userItem] = level0
+ let options, client
+
+ const SESSION_SETUP = {
+ noop: {
+ getActions(cb) {
+ cb(null, [])
+ },
+ needsOwnProject: false,
+ },
+
+ joinReadWriteProject: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'joinProject', args: [{ project_id: readWriteProjectId }] },
+ ])
+ },
+ needsOwnProject: false,
+ },
+
+ joinReadWriteProjectAndDoc: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'joinProject', args: [{ project_id: readWriteProjectId }] },
+ { rpc: 'joinDoc', args: [readWriteDocId] },
+ ])
+ },
+ needsOwnProject: false,
+ },
+
+ joinOwnProject: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'joinProject', args: [{ project_id: options.project_id }] },
+ ])
+ },
+ needsOwnProject: true,
+ },
+
+ joinOwnProjectAndDoc: {
+ getActions(cb) {
+ cb(null, [
+ { rpc: 'joinProject', args: [{ project_id: options.project_id }] },
+ { rpc: 'joinDoc', args: [options.doc_id] },
+ ])
+ },
+ needsOwnProject: true,
+ },
+ }
+
+ function performActions(getActions, done) {
+ getActions((err, actions) => {
+ if (err) return done(err)
+
+ async.eachSeries(
+ actions,
+ (action, cb) => {
+ if (action.rpc) {
+ client.emit(action.rpc, ...action.args, (...returnedArgs) => {
+ const error = returnedArgs.shift()
+ if (action.fails) {
+ expect(error).to.exist
+ expect(returnedArgs).to.have.length(0)
+ return cb()
+ }
+ cb(error)
+ })
+ } else {
+ cb(new Error('unexpected action'))
+ }
+ },
+ done
+ )
+ })
+ }
+
+ describe(userDescription, function () {
+ beforeEach(function userSetup(done) {
+ userItem.setup((err, _options) => {
+ if (err) return done(err)
+
+ options = _options
+ client = options.client
+ client.on('connectionAccepted', done)
+ })
+ })
+
+ Object.entries(SESSION_SETUP).forEach(level1 => {
+ const [sessionSetupDescription, sessionSetupItem] = level1
+ const INVALID_REQUESTS = {
+ noop: {
+ getActions(cb) {
+ cb(null, [])
+ },
+ },
+
+ joinProjectWithDocId: {
+ getActions(cb) {
+ cb(null, [
+ {
+ rpc: 'joinProject',
+ args: [{ project_id: privateDocId }],
+ fails: 1,
+ },
+ ])
+ },
+ },
+
+ joinDocWithDocId: {
+ getActions(cb) {
+ cb(null, [{ rpc: 'joinDoc', args: [privateDocId], fails: 1 }])
+ },
+ },
+
+ joinProjectWithProjectId: {
+ getActions(cb) {
+ cb(null, [
+ {
+ rpc: 'joinProject',
+ args: [{ project_id: privateProjectId }],
+ fails: 1,
+ },
+ ])
+ },
+ },
+
+ joinDocWithProjectId: {
+ getActions(cb) {
+ cb(null, [{ rpc: 'joinDoc', args: [privateProjectId], fails: 1 }])
+ },
+ },
+
+ joinProjectWithProjectIdThenJoinDocWithDocId: {
+ getActions(cb) {
+ cb(null, [
+ {
+ rpc: 'joinProject',
+ args: [{ project_id: privateProjectId }],
+ fails: 1,
+ },
+ { rpc: 'joinDoc', args: [privateDocId], fails: 1 },
+ ])
+ },
+ },
+ }
+
+ // skip some areas of the matrix
+ // - some Users do not have an own project
+ const skip = sessionSetupItem.needsOwnProject && !userItem.hasOwnProject
+
+ describe(sessionSetupDescription, function () {
+ beforeEach(function performSessionActions(done) {
+ if (skip) return this.skip()
+ performActions(sessionSetupItem.getActions, done)
+ })
+
+ Object.entries(INVALID_REQUESTS).forEach(level2 => {
+ const [InvalidRequestDescription, InvalidRequestItem] = level2
+ describe(InvalidRequestDescription, function () {
+ beforeEach(function performInvalidRequests(done) {
+ performActions(InvalidRequestItem.getActions, done)
+ })
+
+ describe('rooms', function () {
+ it('should not add the user into the privateProject room', function (done) {
+ RealTimeClient.getConnectedClient(
+ client.socket.sessionid,
+ (error, client) => {
+ if (error) return done(error)
+ expect(client.rooms).to.not.include(privateProjectId)
+ done()
+ }
+ )
+ })
+
+ it('should not add the user into the privateDoc room', function (done) {
+ RealTimeClient.getConnectedClient(
+ client.socket.sessionid,
+ (error, client) => {
+ if (error) return done(error)
+ expect(client.rooms).to.not.include(privateDocId)
+ done()
+ }
+ )
+ })
+ })
+
+ describe('receive updates', function () {
+ const receivedMessages = []
+ beforeEach(function publishAnUpdateInRedis(done) {
+ const update = {
+ doc_id: privateDocId,
+ op: {
+ meta: { source: privateClient.publicId },
+ v: 42,
+ doc: privateDocId,
+ op: [{ i: 'foo', p: 50 }],
+ },
+ }
+ client.on('otUpdateApplied', update => {
+ receivedMessages.push(update)
+ })
+ privateClient.once('otUpdateApplied', () => {
+ setTimeout(done, 10)
+ })
+ rclient.publish('applied-ops', JSON.stringify(update))
+ })
+
+ it('should send nothing to client', function () {
+ expect(receivedMessages).to.have.length(0)
+ })
+ })
+
+ describe('receive messages from web', function () {
+ const receivedMessages = []
+ beforeEach(function publishAMessageInRedis(done) {
+ const event = {
+ room_id: privateProjectId,
+ message: 'removeEntity',
+ payload: ['foo', 'convertDocToFile'],
+ _id: 'web:123',
+ }
+ client.on('removeEntity', (...args) => {
+ receivedMessages.push(args)
+ })
+ privateClient.once('removeEntity', () => {
+ setTimeout(done, 10)
+ })
+ rclient.publish('editor-events', JSON.stringify(event))
+ })
+
+ it('should send nothing to client', function () {
+ expect(receivedMessages).to.have.length(0)
+ })
+ })
+
+ describe('send updates', function () {
+ let receivedArgs, submittedUpdates, update
+
+ beforeEach(function cleanup(done) {
+ cleanupPreviousUpdates(privateDocId, done)
+ })
+
+ beforeEach(function setupUpdateFields() {
+ update = {
+ doc_id: privateDocId,
+ op: {
+ v: 43,
+ lastV: 42,
+ doc: privateDocId,
+ op: [{ i: 'foo', p: 50 }],
+ },
+ }
+ })
+
+ beforeEach(function sendAsUser(done) {
+ const userUpdate = Object.assign({}, update, {
+ hash: 'user',
+ })
+
+ client.emit(
+ 'applyOtUpdate',
+ privateDocId,
+ userUpdate,
+ (...args) => {
+ receivedArgs = args
+ done()
+ }
+ )
+ })
+
+ beforeEach(function sendAsPrivateUserForReferenceOp(done) {
+ const privateUpdate = Object.assign({}, update, {
+ hash: 'private',
+ })
+
+ privateClient.emit(
+ 'applyOtUpdate',
+ privateDocId,
+ privateUpdate,
+ done
+ )
+ })
+
+ beforeEach(function fetchPendingOps(done) {
+ getPendingUpdates(privateDocId, (err, updates) => {
+ submittedUpdates = updates
+ done(err)
+ })
+ })
+
+ it('should error out trying to send', function () {
+ expect(receivedArgs).to.have.length(1)
+ expect(receivedArgs[0]).to.have.property('message')
+ // we are using an old version of chai: 1.9.2
+ // TypeError: expect(...).to.be.oneOf is not a function
+ expect(
+ [
+ 'no project_id found on client',
+ 'not authorized',
+ ].includes(receivedArgs[0].message)
+ ).to.equal(true)
+ })
+
+ it('should submit the private users message only', function () {
+ expect(submittedUpdates).to.have.length(1)
+ const update = JSON.parse(submittedUpdates[0])
+ expect(update.hash).to.equal('private')
+ })
+ })
+ })
+ })
+ })
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/PubSubRace.js b/services/real-time/test/acceptance/js/PubSubRace.js
new file mode 100644
index 0000000000..9563f71354
--- /dev/null
+++ b/services/real-time/test/acceptance/js/PubSubRace.js
@@ -0,0 +1,373 @@
+/* eslint-disable
+ camelcase,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+const settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.pubsub)
+
+describe('PubSubRace', function () {
+ before(function (done) {
+ return MockDocUpdaterServer.run(done)
+ })
+
+ describe('when the client leaves a doc before joinDoc completes', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connect', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ // leave before joinDoc completes
+ return this.clientA.emit('leaveDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ // wait for subscribe and unsubscribe
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should not subscribe to the applied-ops channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+
+ describe('when the client emits joinDoc and leaveDoc requests frequently and leaves eventually', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connect', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ return this.clientA.emit('leaveDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ // wait for subscribe and unsubscribe
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should not subscribe to the applied-ops channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+
+ describe('when the client emits joinDoc and leaveDoc requests frequently and remains in the doc', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connect', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ this.clientA.emit('joinDoc', this.doc_id, () => {})
+ this.clientA.emit('leaveDoc', this.doc_id, () => {})
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ // wait for subscribe and unsubscribe
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should subscribe to the applied-ops channels', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+
+ return describe('when the client disconnects before joinDoc completes', function () {
+ before(function (done) {
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connect', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ { project_id: this.project_id },
+ (error, project, privilegeLevel, protocolVersion) => {
+ this.project = project
+ this.privilegeLevel = privilegeLevel
+ this.protocolVersion = protocolVersion
+ return cb(error)
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ let joinDocCompleted = false
+ this.clientA.emit(
+ 'joinDoc',
+ this.doc_id,
+ () => (joinDocCompleted = true)
+ )
+ // leave before joinDoc completes
+ return setTimeout(
+ () => {
+ if (joinDocCompleted) {
+ return cb(new Error('joinDocCompleted -- lower timeout'))
+ }
+ this.clientA.on('disconnect', () => cb())
+ return this.clientA.disconnect()
+ },
+ // socket.io processes joinDoc and disconnect with different delays:
+ // - joinDoc goes through two process.nextTick
+ // - disconnect goes through one process.nextTick
+ // We have to inject the disconnect event into a different event loop
+ // cycle.
+ 3
+ )
+ },
+
+ cb => {
+ // wait for subscribe and unsubscribe
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ it('should not subscribe to the editor-events channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`editor-events:${this.project_id}`)
+ return done()
+ })
+ return null
+ })
+
+ return it('should not subscribe to the applied-ops channels anymore', function (done) {
+ rclient.pubsub('CHANNELS', (err, resp) => {
+ if (err) {
+ return done(err)
+ }
+ resp.should.not.include(`applied-ops:${this.doc_id}`)
+ return done()
+ })
+ return null
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/ReceiveUpdateTests.js b/services/real-time/test/acceptance/js/ReceiveUpdateTests.js
new file mode 100644
index 0000000000..b8cd9858b6
--- /dev/null
+++ b/services/real-time/test/acceptance/js/ReceiveUpdateTests.js
@@ -0,0 +1,347 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const MockWebServer = require('./helpers/MockWebServer')
+const FixturesManager = require('./helpers/FixturesManager')
+
+const async = require('async')
+
+const settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(settings.redis.pubsub)
+
+describe('receiveUpdate', function () {
+ beforeEach(function (done) {
+ this.lines = ['test', 'doc', 'lines']
+ this.version = 42
+ this.ops = ['mock', 'doc', 'ops']
+
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: { name: 'Test Project' },
+ },
+ (error, { user_id, project_id }) => {
+ this.user_id = user_id
+ this.project_id = project_id
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id }) => {
+ this.doc_id = doc_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientA = RealTimeClient.connect()
+ return this.clientA.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.clientB = RealTimeClient.connect()
+ return this.clientB.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientA.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ return this.clientA.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return this.clientB.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id,
+ },
+ cb
+ )
+ },
+
+ cb => {
+ return this.clientB.emit('joinDoc', this.doc_id, cb)
+ },
+
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: { name: 'Test Project' },
+ },
+ (
+ error,
+ { user_id: user_id_second, project_id: project_id_second }
+ ) => {
+ this.user_id_second = user_id_second
+ this.project_id_second = project_id_second
+ return cb()
+ }
+ )
+ },
+
+ cb => {
+ return FixturesManager.setUpDoc(
+ this.project_id_second,
+ { lines: this.lines, version: this.version, ops: this.ops },
+ (e, { doc_id: doc_id_second }) => {
+ this.doc_id_second = doc_id_second
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.clientC = RealTimeClient.connect()
+ return this.clientC.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.clientC.emit(
+ 'joinProject',
+ {
+ project_id: this.project_id_second,
+ },
+ cb
+ )
+ },
+ cb => {
+ return this.clientC.emit('joinDoc', this.doc_id_second, cb)
+ },
+
+ cb => {
+ this.clientAUpdates = []
+ this.clientA.on('otUpdateApplied', update =>
+ this.clientAUpdates.push(update)
+ )
+ this.clientBUpdates = []
+ this.clientB.on('otUpdateApplied', update =>
+ this.clientBUpdates.push(update)
+ )
+ this.clientCUpdates = []
+ this.clientC.on('otUpdateApplied', update =>
+ this.clientCUpdates.push(update)
+ )
+
+ this.clientAErrors = []
+ this.clientA.on('otUpdateError', error =>
+ this.clientAErrors.push(error)
+ )
+ this.clientBErrors = []
+ this.clientB.on('otUpdateError', error =>
+ this.clientBErrors.push(error)
+ )
+ this.clientCErrors = []
+ this.clientC.on('otUpdateError', error =>
+ this.clientCErrors.push(error)
+ )
+ return cb()
+ },
+ ],
+ done
+ )
+ })
+
+ afterEach(function () {
+ if (this.clientA != null) {
+ this.clientA.disconnect()
+ }
+ if (this.clientB != null) {
+ this.clientB.disconnect()
+ }
+ return this.clientC != null ? this.clientC.disconnect() : undefined
+ })
+
+ describe('with an update from clientA', function () {
+ beforeEach(function (done) {
+ this.update = {
+ doc_id: this.doc_id,
+ op: {
+ meta: {
+ source: this.clientA.publicId,
+ },
+ v: this.version,
+ doc: this.doc_id,
+ op: [{ i: 'foo', p: 50 }],
+ },
+ }
+ rclient.publish('applied-ops', JSON.stringify(this.update))
+ return setTimeout(done, 200)
+ }) // Give clients time to get message
+
+ it('should send the full op to clientB', function () {
+ return this.clientBUpdates.should.deep.equal([this.update.op])
+ })
+
+ it('should send an ack to clientA', function () {
+ return this.clientAUpdates.should.deep.equal([
+ {
+ v: this.version,
+ doc: this.doc_id,
+ },
+ ])
+ })
+
+ return it('should send nothing to clientC', function () {
+ return this.clientCUpdates.should.deep.equal([])
+ })
+ })
+
+ describe('with an update from clientC', function () {
+ beforeEach(function (done) {
+ this.update = {
+ doc_id: this.doc_id_second,
+ op: {
+ meta: {
+ source: this.clientC.publicId,
+ },
+ v: this.version,
+ doc: this.doc_id_second,
+ op: [{ i: 'update from clientC', p: 50 }],
+ },
+ }
+ rclient.publish('applied-ops', JSON.stringify(this.update))
+ return setTimeout(done, 200)
+ }) // Give clients time to get message
+
+ it('should send nothing to clientA', function () {
+ return this.clientAUpdates.should.deep.equal([])
+ })
+
+ it('should send nothing to clientB', function () {
+ return this.clientBUpdates.should.deep.equal([])
+ })
+
+ return it('should send an ack to clientC', function () {
+ return this.clientCUpdates.should.deep.equal([
+ {
+ v: this.version,
+ doc: this.doc_id_second,
+ },
+ ])
+ })
+ })
+
+ describe('with an update from a remote client for project 1', function () {
+ beforeEach(function (done) {
+ this.update = {
+ doc_id: this.doc_id,
+ op: {
+ meta: {
+ source: 'this-is-a-remote-client-id',
+ },
+ v: this.version,
+ doc: this.doc_id,
+ op: [{ i: 'foo', p: 50 }],
+ },
+ }
+ rclient.publish('applied-ops', JSON.stringify(this.update))
+ return setTimeout(done, 200)
+ }) // Give clients time to get message
+
+ it('should send the full op to clientA', function () {
+ return this.clientAUpdates.should.deep.equal([this.update.op])
+ })
+
+ it('should send the full op to clientB', function () {
+ return this.clientBUpdates.should.deep.equal([this.update.op])
+ })
+
+ return it('should send nothing to clientC', function () {
+ return this.clientCUpdates.should.deep.equal([])
+ })
+ })
+
+ describe('with an error for the first project', function () {
+ beforeEach(function (done) {
+ rclient.publish(
+ 'applied-ops',
+ JSON.stringify({
+ doc_id: this.doc_id,
+ error: (this.error = 'something went wrong'),
+ })
+ )
+ return setTimeout(done, 200)
+ }) // Give clients time to get message
+
+ it('should send the error to the clients in the first project', function () {
+ this.clientAErrors.should.deep.equal([this.error])
+ return this.clientBErrors.should.deep.equal([this.error])
+ })
+
+ it('should not send any errors to the client in the second project', function () {
+ return this.clientCErrors.should.deep.equal([])
+ })
+
+ it('should disconnect the clients of the first project', function () {
+ this.clientA.socket.connected.should.equal(false)
+ return this.clientB.socket.connected.should.equal(false)
+ })
+
+ return it('should not disconnect the client in the second project', function () {
+ return this.clientC.socket.connected.should.equal(true)
+ })
+ })
+
+ return describe('with an error for the second project', function () {
+ beforeEach(function (done) {
+ rclient.publish(
+ 'applied-ops',
+ JSON.stringify({
+ doc_id: this.doc_id_second,
+ error: (this.error = 'something went wrong'),
+ })
+ )
+ return setTimeout(done, 200)
+ }) // Give clients time to get message
+
+ it('should not send any errors to the clients in the first project', function () {
+ this.clientAErrors.should.deep.equal([])
+ return this.clientBErrors.should.deep.equal([])
+ })
+
+ it('should send the error to the client in the second project', function () {
+ return this.clientCErrors.should.deep.equal([this.error])
+ })
+
+ it('should not disconnect the clients of the first project', function () {
+ this.clientA.socket.connected.should.equal(true)
+ return this.clientB.socket.connected.should.equal(true)
+ })
+
+ return it('should disconnect the client in the second project', function () {
+ return this.clientC.socket.connected.should.equal(false)
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/RouterTests.js b/services/real-time/test/acceptance/js/RouterTests.js
new file mode 100644
index 0000000000..cc3862975d
--- /dev/null
+++ b/services/real-time/test/acceptance/js/RouterTests.js
@@ -0,0 +1,121 @@
+/* eslint-disable
+ camelcase,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const async = require('async')
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+const FixturesManager = require('./helpers/FixturesManager')
+
+describe('Router', function () {
+ return describe('joinProject', function () {
+ describe('when there is no callback provided', function () {
+ after(function () {
+ return process.removeListener('unhandledRejection', this.onUnhandled)
+ })
+
+ before(function (done) {
+ this.onUnhandled = error => done(error)
+ process.on('unhandledRejection', this.onUnhandled)
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.client.emit('joinProject', { project_id: this.project_id })
+ return setTimeout(cb, 100)
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should keep on going', function () {
+ return expect('still running').to.exist
+ })
+ })
+
+ return describe('when there are too many arguments', function () {
+ after(function () {
+ return process.removeListener('unhandledRejection', this.onUnhandled)
+ })
+
+ before(function (done) {
+ this.onUnhandled = error => done(error)
+ process.on('unhandledRejection', this.onUnhandled)
+ return async.series(
+ [
+ cb => {
+ return FixturesManager.setUpProject(
+ {
+ privilegeLevel: 'owner',
+ project: {
+ name: 'Test Project',
+ },
+ },
+ (e, { project_id, user_id }) => {
+ this.project_id = project_id
+ this.user_id = user_id
+ return cb(e)
+ }
+ )
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ this.client = RealTimeClient.connect()
+ return this.client.on('connectionAccepted', cb)
+ },
+
+ cb => {
+ return this.client.emit('joinProject', 1, 2, 3, 4, 5, error => {
+ this.error = error
+ return cb()
+ })
+ },
+ ],
+ done
+ )
+ })
+
+ return it('should return an error message', function () {
+ return expect(this.error.message).to.equal('unexpected arguments')
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/SessionSocketsTests.js b/services/real-time/test/acceptance/js/SessionSocketsTests.js
new file mode 100644
index 0000000000..ae636fdd96
--- /dev/null
+++ b/services/real-time/test/acceptance/js/SessionSocketsTests.js
@@ -0,0 +1,103 @@
+/* eslint-disable
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const RealTimeClient = require('./helpers/RealTimeClient')
+const Settings = require('@overleaf/settings')
+const { expect } = require('chai')
+
+describe('SessionSockets', function () {
+ before(function () {
+ return (this.checkSocket = function (fn) {
+ const client = RealTimeClient.connect()
+ client.on('connectionAccepted', fn)
+ client.on('connectionRejected', fn)
+ return null
+ })
+ })
+
+ describe('without cookies', function () {
+ before(function () {
+ return (RealTimeClient.cookie = null)
+ })
+
+ return it('should return a lookup error', function (done) {
+ return this.checkSocket(error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('invalid session')
+ return done()
+ })
+ })
+ })
+
+ describe('with a different cookie', function () {
+ before(function () {
+ return (RealTimeClient.cookie = 'some.key=someValue')
+ })
+
+ return it('should return a lookup error', function (done) {
+ return this.checkSocket(error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('invalid session')
+ return done()
+ })
+ })
+ })
+
+ describe('with an invalid cookie', function () {
+ before(function (done) {
+ RealTimeClient.setSession({}, error => {
+ if (error) {
+ return done(error)
+ }
+ RealTimeClient.cookie = `${
+ Settings.cookieName
+ }=${RealTimeClient.cookie.slice(17, 49)}`
+ return done()
+ })
+ return null
+ })
+
+ return it('should return a lookup error', function (done) {
+ return this.checkSocket(error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('invalid session')
+ return done()
+ })
+ })
+ })
+
+ describe('with a valid cookie and no matching session', function () {
+ before(function () {
+ return (RealTimeClient.cookie = `${Settings.cookieName}=unknownId`)
+ })
+
+ return it('should return a lookup error', function (done) {
+ return this.checkSocket(error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('invalid session')
+ return done()
+ })
+ })
+ })
+
+ return describe('with a valid cookie and a matching session', function () {
+ before(function (done) {
+ RealTimeClient.setSession({}, done)
+ return null
+ })
+
+ return it('should not return an error', function (done) {
+ return this.checkSocket(error => {
+ expect(error).to.not.exist
+ return done()
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/SessionTests.js b/services/real-time/test/acceptance/js/SessionTests.js
new file mode 100644
index 0000000000..21d691bea3
--- /dev/null
+++ b/services/real-time/test/acceptance/js/SessionTests.js
@@ -0,0 +1,60 @@
+/* eslint-disable
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+
+const RealTimeClient = require('./helpers/RealTimeClient')
+
+describe('Session', function () {
+ return describe('with an established session', function () {
+ before(function (done) {
+ this.user_id = 'mock-user-id'
+ RealTimeClient.setSession(
+ {
+ user: { _id: this.user_id },
+ },
+ error => {
+ if (error != null) {
+ throw error
+ }
+ this.client = RealTimeClient.connect()
+ return done()
+ }
+ )
+ return null
+ })
+
+ it('should not get disconnected', function (done) {
+ let disconnected = false
+ this.client.on('disconnect', () => (disconnected = true))
+ return setTimeout(() => {
+ expect(disconnected).to.equal(false)
+ return done()
+ }, 500)
+ })
+
+ return it('should appear in the list of connected clients', function (done) {
+ return RealTimeClient.getConnectedClients((error, clients) => {
+ let included = false
+ for (const client of Array.from(clients)) {
+ if (client.client_id === this.client.socket.sessionid) {
+ included = true
+ break
+ }
+ }
+ expect(included).to.equal(true)
+ return done()
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/acceptance/js/helpers/FixturesManager.js b/services/real-time/test/acceptance/js/helpers/FixturesManager.js
new file mode 100644
index 0000000000..48fdc16ada
--- /dev/null
+++ b/services/real-time/test/acceptance/js/helpers/FixturesManager.js
@@ -0,0 +1,130 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+let FixturesManager
+const RealTimeClient = require('./RealTimeClient')
+const MockWebServer = require('./MockWebServer')
+const MockDocUpdaterServer = require('./MockDocUpdaterServer')
+
+module.exports = FixturesManager = {
+ setUpProject(options, callback) {
+ if (options == null) {
+ options = {}
+ }
+ if (callback == null) {
+ callback = function (error, data) {}
+ }
+ if (!options.user_id) {
+ options.user_id = FixturesManager.getRandomId()
+ }
+ if (!options.project_id) {
+ options.project_id = FixturesManager.getRandomId()
+ }
+ if (!options.project) {
+ options.project = { name: 'Test Project' }
+ }
+ const { project_id, user_id, privilegeLevel, project, publicAccess } =
+ options
+
+ const privileges = {}
+ privileges[user_id] = privilegeLevel
+ if (publicAccess) {
+ privileges['anonymous-user'] = publicAccess
+ }
+
+ MockWebServer.createMockProject(project_id, privileges, project)
+ return MockWebServer.run(error => {
+ if (error != null) {
+ throw error
+ }
+ return RealTimeClient.setSession(
+ {
+ user: {
+ _id: user_id,
+ first_name: 'Joe',
+ last_name: 'Bloggs',
+ },
+ },
+ error => {
+ if (error != null) {
+ throw error
+ }
+ return callback(null, {
+ project_id,
+ user_id,
+ privilegeLevel,
+ project,
+ })
+ }
+ )
+ })
+ },
+
+ setUpDoc(project_id, options, callback) {
+ if (options == null) {
+ options = {}
+ }
+ if (callback == null) {
+ callback = function (error, data) {}
+ }
+ if (!options.doc_id) {
+ options.doc_id = FixturesManager.getRandomId()
+ }
+ if (!options.lines) {
+ options.lines = ['doc', 'lines']
+ }
+ if (!options.version) {
+ options.version = 42
+ }
+ if (!options.ops) {
+ options.ops = ['mock', 'ops']
+ }
+ const { doc_id, lines, version, ops, ranges } = options
+
+ MockDocUpdaterServer.createMockDoc(project_id, doc_id, {
+ lines,
+ version,
+ ops,
+ ranges,
+ })
+ return MockDocUpdaterServer.run(error => {
+ if (error != null) {
+ throw error
+ }
+ return callback(null, { project_id, doc_id, lines, version, ops })
+ })
+ },
+
+ setUpEditorSession(options, callback) {
+ FixturesManager.setUpProject(options, (err, detailsProject) => {
+ if (err) return callback(err)
+
+ FixturesManager.setUpDoc(
+ detailsProject.project_id,
+ options,
+ (err, detailsDoc) => {
+ if (err) return callback(err)
+
+ callback(null, Object.assign({}, detailsProject, detailsDoc))
+ }
+ )
+ })
+ },
+
+ getRandomId() {
+ return require('crypto')
+ .createHash('sha1')
+ .update(Math.random().toString())
+ .digest('hex')
+ .slice(0, 24)
+ },
+}
diff --git a/services/real-time/test/acceptance/js/helpers/MockDocUpdaterServer.js b/services/real-time/test/acceptance/js/helpers/MockDocUpdaterServer.js
new file mode 100644
index 0000000000..519da94745
--- /dev/null
+++ b/services/real-time/test/acceptance/js/helpers/MockDocUpdaterServer.js
@@ -0,0 +1,93 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+let MockDocUpdaterServer
+const sinon = require('sinon')
+const express = require('express')
+
+module.exports = MockDocUpdaterServer = {
+ docs: {},
+
+ createMockDoc(project_id, doc_id, data) {
+ return (MockDocUpdaterServer.docs[`${project_id}:${doc_id}`] = data)
+ },
+
+ getDocument(project_id, doc_id, fromVersion, callback) {
+ if (callback == null) {
+ callback = function (error, data) {}
+ }
+ return callback(null, MockDocUpdaterServer.docs[`${project_id}:${doc_id}`])
+ },
+
+ deleteProject: sinon.stub().callsArg(1),
+
+ getDocumentRequest(req, res, next) {
+ const { project_id, doc_id } = req.params
+ let { fromVersion } = req.query
+ fromVersion = parseInt(fromVersion, 10)
+ return MockDocUpdaterServer.getDocument(
+ project_id,
+ doc_id,
+ fromVersion,
+ (error, data) => {
+ if (error != null) {
+ return next(error)
+ }
+ if (!data) {
+ return res.sendStatus(404)
+ }
+ return res.json(data)
+ }
+ )
+ },
+
+ deleteProjectRequest(req, res, next) {
+ const { project_id } = req.params
+ return MockDocUpdaterServer.deleteProject(project_id, error => {
+ if (error != null) {
+ return next(error)
+ }
+ return res.sendStatus(204)
+ })
+ },
+
+ running: false,
+ run(callback) {
+ if (callback == null) {
+ callback = function (error) {}
+ }
+ if (MockDocUpdaterServer.running) {
+ return callback()
+ }
+ const app = express()
+ app.get(
+ '/project/:project_id/doc/:doc_id',
+ MockDocUpdaterServer.getDocumentRequest
+ )
+ app.delete(
+ '/project/:project_id',
+ MockDocUpdaterServer.deleteProjectRequest
+ )
+ return app
+ .listen(3003, error => {
+ MockDocUpdaterServer.running = true
+ return callback(error)
+ })
+ .on('error', error => {
+ console.error('error starting MockDocUpdaterServer:', error.message)
+ return process.exit(1)
+ })
+ },
+}
+
+sinon.spy(MockDocUpdaterServer, 'getDocument')
diff --git a/services/real-time/test/acceptance/js/helpers/MockWebServer.js b/services/real-time/test/acceptance/js/helpers/MockWebServer.js
new file mode 100644
index 0000000000..c84bfd14b6
--- /dev/null
+++ b/services/real-time/test/acceptance/js/helpers/MockWebServer.js
@@ -0,0 +1,89 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+let MockWebServer
+const sinon = require('sinon')
+const express = require('express')
+
+module.exports = MockWebServer = {
+ projects: {},
+ privileges: {},
+
+ createMockProject(project_id, privileges, project) {
+ MockWebServer.privileges[project_id] = privileges
+ return (MockWebServer.projects[project_id] = project)
+ },
+
+ joinProject(project_id, user_id, callback) {
+ if (callback == null) {
+ callback = function (error, project, privilegeLevel) {}
+ }
+ return callback(
+ null,
+ MockWebServer.projects[project_id],
+ MockWebServer.privileges[project_id][user_id] ||
+ MockWebServer.privileges[project_id]['anonymous-user']
+ )
+ },
+
+ joinProjectRequest(req, res, next) {
+ const { project_id } = req.params
+ const { user_id } = req.query
+ if (project_id === 'not-found') {
+ return res.status(404).send()
+ }
+ if (project_id === 'forbidden') {
+ return res.status(403).send()
+ }
+ if (project_id === 'rate-limited') {
+ return res.status(429).send()
+ } else {
+ return MockWebServer.joinProject(
+ project_id,
+ user_id,
+ (error, project, privilegeLevel) => {
+ if (error != null) {
+ return next(error)
+ }
+ return res.json({
+ project,
+ privilegeLevel,
+ })
+ }
+ )
+ }
+ },
+
+ running: false,
+ run(callback) {
+ if (callback == null) {
+ callback = function (error) {}
+ }
+ if (MockWebServer.running) {
+ return callback()
+ }
+ const app = express()
+ app.post('/project/:project_id/join', MockWebServer.joinProjectRequest)
+ return app
+ .listen(3000, error => {
+ MockWebServer.running = true
+ return callback(error)
+ })
+ .on('error', error => {
+ console.error('error starting MockWebServer:', error.message)
+ return process.exit(1)
+ })
+ },
+}
+
+sinon.spy(MockWebServer, 'joinProject')
diff --git a/services/real-time/test/acceptance/js/helpers/RealTimeClient.js b/services/real-time/test/acceptance/js/helpers/RealTimeClient.js
new file mode 100644
index 0000000000..00f00b5ee9
--- /dev/null
+++ b/services/real-time/test/acceptance/js/helpers/RealTimeClient.js
@@ -0,0 +1,127 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+let Client
+const { XMLHttpRequest } = require('../../libs/XMLHttpRequest')
+const io = require('socket.io-client')
+const async = require('async')
+
+const request = require('request')
+const Settings = require('@overleaf/settings')
+const redis = require('@overleaf/redis-wrapper')
+const rclient = redis.createClient(Settings.redis.websessions)
+
+const uid = require('uid-safe').sync
+const signature = require('cookie-signature')
+
+io.util.request = function () {
+ const xhr = new XMLHttpRequest()
+ const _open = xhr.open
+ xhr.open = function () {
+ _open.apply(xhr, arguments)
+ if (Client.cookie != null) {
+ return xhr.setRequestHeader('Cookie', Client.cookie)
+ }
+ }
+ return xhr
+}
+
+module.exports = Client = {
+ cookie: null,
+
+ setSession(session, callback) {
+ if (callback == null) {
+ callback = function (error) {}
+ }
+ const sessionId = uid(24)
+ session.cookie = {}
+ return rclient.set('sess:' + sessionId, JSON.stringify(session), error => {
+ if (error != null) {
+ return callback(error)
+ }
+ const secret = Settings.security.sessionSecret
+ const cookieKey = 's:' + signature.sign(sessionId, secret)
+ Client.cookie = `${Settings.cookieName}=${cookieKey}`
+ return callback()
+ })
+ },
+
+ unsetSession(callback) {
+ if (callback == null) {
+ callback = function (error) {}
+ }
+ Client.cookie = null
+ return callback()
+ },
+
+ connect(cookie) {
+ const client = io.connect('http://localhost:3026', {
+ 'force new connection': true,
+ })
+ client.on(
+ 'connectionAccepted',
+ (_, publicId) => (client.publicId = publicId)
+ )
+ return client
+ },
+
+ getConnectedClients(callback) {
+ if (callback == null) {
+ callback = function (error, clients) {}
+ }
+ return request.get(
+ {
+ url: 'http://localhost:3026/clients',
+ json: true,
+ },
+ (error, response, data) => callback(error, data)
+ )
+ },
+
+ getConnectedClient(client_id, callback) {
+ if (callback == null) {
+ callback = function (error, clients) {}
+ }
+ return request.get(
+ {
+ url: `http://localhost:3026/clients/${client_id}`,
+ json: true,
+ },
+ (error, response, data) => callback(error, data)
+ )
+ },
+
+ disconnectClient(client_id, callback) {
+ request.post(
+ {
+ url: `http://localhost:3026/client/${client_id}/disconnect`,
+ auth: {
+ user: Settings.internal.realTime.user,
+ pass: Settings.internal.realTime.pass,
+ },
+ },
+ (error, response, data) => callback(error, data)
+ )
+ return null
+ },
+
+ disconnectAllClients(callback) {
+ return Client.getConnectedClients((error, clients) =>
+ async.each(
+ clients,
+ (clientView, cb) => Client.disconnectClient(clientView.client_id, cb),
+ callback
+ )
+ )
+ },
+}
diff --git a/services/real-time/test/acceptance/js/helpers/RealtimeServer.js b/services/real-time/test/acceptance/js/helpers/RealtimeServer.js
new file mode 100644
index 0000000000..e964765b7a
--- /dev/null
+++ b/services/real-time/test/acceptance/js/helpers/RealtimeServer.js
@@ -0,0 +1,64 @@
+/* eslint-disable
+ handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS103: Rewrite code to no longer use __guard__
+ * DS205: Consider reworking code to avoid use of IIFEs
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const app = require('../../../../app')
+const logger = require('logger-sharelatex')
+const Settings = require('@overleaf/settings')
+
+module.exports = {
+ running: false,
+ initing: false,
+ callbacks: [],
+ ensureRunning(callback) {
+ if (callback == null) {
+ callback = function (error) {}
+ }
+ if (this.running) {
+ return callback()
+ } else if (this.initing) {
+ return this.callbacks.push(callback)
+ } else {
+ this.initing = true
+ this.callbacks.push(callback)
+ return app.listen(
+ __guard__(
+ Settings.internal != null ? Settings.internal.realtime : undefined,
+ x => x.port
+ ),
+ 'localhost',
+ error => {
+ if (error != null) {
+ throw error
+ }
+ this.running = true
+ logger.log('clsi running in dev mode')
+
+ return (() => {
+ const result = []
+ for (callback of Array.from(this.callbacks)) {
+ result.push(callback())
+ }
+ return result
+ })()
+ }
+ )
+ }
+ },
+}
+
+function __guard__(value, transform) {
+ return typeof value !== 'undefined' && value !== null
+ ? transform(value)
+ : undefined
+}
diff --git a/services/real-time/test/acceptance/libs/XMLHttpRequest.js b/services/real-time/test/acceptance/libs/XMLHttpRequest.js
new file mode 100644
index 0000000000..b0436718e3
--- /dev/null
+++ b/services/real-time/test/acceptance/libs/XMLHttpRequest.js
@@ -0,0 +1,579 @@
+/**
+ * Wrapper for built-in http.js to emulate the browser XMLHttpRequest object.
+ *
+ * This can be used with JS designed for browsers to improve reuse of code and
+ * allow the use of existing libraries.
+ *
+ * Usage: include("XMLHttpRequest.js") and use XMLHttpRequest per W3C specs.
+ *
+ * @author Dan DeFelippi
+ * @contributor David Ellis
+ * @license MIT
+ */
+
+const { URL } = require('url')
+const spawn = require('child_process').spawn
+const fs = require('fs')
+
+exports.XMLHttpRequest = function () {
+ /**
+ * Private variables
+ */
+ const self = this
+ const http = require('http')
+ const https = require('https')
+
+ // Holds http.js objects
+ let request
+ let response
+
+ // Request settings
+ let settings = {}
+
+ // Set some default headers
+ const defaultHeaders = {
+ 'User-Agent': 'node-XMLHttpRequest',
+ Accept: '*/*',
+ }
+
+ let headers = defaultHeaders
+
+ // These headers are not user setable.
+ // The following are allowed but banned in the spec:
+ // * user-agent
+ const forbiddenRequestHeaders = [
+ 'accept-charset',
+ 'accept-encoding',
+ 'access-control-request-headers',
+ 'access-control-request-method',
+ 'connection',
+ 'content-length',
+ 'content-transfer-encoding',
+ // "cookie",
+ 'cookie2',
+ 'date',
+ 'expect',
+ 'host',
+ 'keep-alive',
+ 'origin',
+ 'referer',
+ 'te',
+ 'trailer',
+ 'transfer-encoding',
+ 'upgrade',
+ 'via',
+ ]
+
+ // These request methods are not allowed
+ const forbiddenRequestMethods = ['TRACE', 'TRACK', 'CONNECT']
+
+ // Send flag
+ let sendFlag = false
+ // Error flag, used when errors occur or abort is called
+ let errorFlag = false
+
+ // Event listeners
+ const listeners = {}
+
+ /**
+ * Constants
+ */
+
+ this.UNSENT = 0
+ this.OPENED = 1
+ this.HEADERS_RECEIVED = 2
+ this.LOADING = 3
+ this.DONE = 4
+
+ /**
+ * Public vars
+ */
+
+ // Current state
+ this.readyState = this.UNSENT
+
+ // default ready state change handler in case one is not set or is set late
+ this.onreadystatechange = null
+
+ // Result & response
+ this.responseText = ''
+ this.responseXML = ''
+ this.status = null
+ this.statusText = null
+
+ /**
+ * Private methods
+ */
+
+ /**
+ * Check if the specified header is allowed.
+ *
+ * @param string header Header to validate
+ * @return boolean False if not allowed, otherwise true
+ */
+ const isAllowedHttpHeader = function (header) {
+ return (
+ header && forbiddenRequestHeaders.indexOf(header.toLowerCase()) === -1
+ )
+ }
+
+ /**
+ * Check if the specified method is allowed.
+ *
+ * @param string method Request method to validate
+ * @return boolean False if not allowed, otherwise true
+ */
+ const isAllowedHttpMethod = function (method) {
+ return method && forbiddenRequestMethods.indexOf(method) === -1
+ }
+
+ /**
+ * Public methods
+ */
+
+ /**
+ * Open the connection. Currently supports local server requests.
+ *
+ * @param string method Connection method (eg GET, POST)
+ * @param string url URL for the connection.
+ * @param boolean async Asynchronous connection. Default is true.
+ * @param string user Username for basic authentication (optional)
+ * @param string password Password for basic authentication (optional)
+ */
+ this.open = function (method, url, async, user, password) {
+ this.abort()
+ errorFlag = false
+
+ // Check for valid request method
+ if (!isAllowedHttpMethod(method)) {
+ throw new Error('SecurityError: Request method not allowed')
+ }
+
+ settings = {
+ method: method,
+ url: url.toString(),
+ async: typeof async !== 'boolean' ? true : async,
+ user: user || null,
+ password: password || null,
+ }
+
+ setState(this.OPENED)
+ }
+
+ /**
+ * Sets a header for the request.
+ *
+ * @param string header Header name
+ * @param string value Header value
+ */
+ this.setRequestHeader = function (header, value) {
+ if (this.readyState !== this.OPENED) {
+ throw new Error(
+ 'INVALID_STATE_ERR: setRequestHeader can only be called when state is OPEN'
+ )
+ }
+ if (!isAllowedHttpHeader(header)) {
+ console.warn('Refused to set unsafe header "' + header + '"')
+ return
+ }
+ if (sendFlag) {
+ throw new Error('INVALID_STATE_ERR: send flag is true')
+ }
+ headers[header] = value
+ }
+
+ /**
+ * Gets a header from the server response.
+ *
+ * @param string header Name of header to get.
+ * @return string Text of the header or null if it doesn't exist.
+ */
+ this.getResponseHeader = function (header) {
+ if (
+ typeof header === 'string' &&
+ this.readyState > this.OPENED &&
+ response.headers[header.toLowerCase()] &&
+ !errorFlag
+ ) {
+ return response.headers[header.toLowerCase()]
+ }
+
+ return null
+ }
+
+ /**
+ * Gets all the response headers.
+ *
+ * @return string A string with all response headers separated by CR+LF
+ */
+ this.getAllResponseHeaders = function () {
+ if (this.readyState < this.HEADERS_RECEIVED || errorFlag) {
+ return ''
+ }
+ let result = ''
+
+ for (const i in response.headers) {
+ // Cookie headers are excluded
+ if (i !== 'set-cookie' && i !== 'set-cookie2') {
+ result += i + ': ' + response.headers[i] + '\r\n'
+ }
+ }
+ return result.substr(0, result.length - 2)
+ }
+
+ /**
+ * Gets a request header
+ *
+ * @param string name Name of header to get
+ * @return string Returns the request header or empty string if not set
+ */
+ this.getRequestHeader = function (name) {
+ // @TODO Make this case insensitive
+ if (typeof name === 'string' && headers[name]) {
+ return headers[name]
+ }
+
+ return ''
+ }
+
+ /**
+ * Sends the request to the server.
+ *
+ * @param string data Optional data to send as request body.
+ */
+ this.send = function (data) {
+ if (this.readyState !== this.OPENED) {
+ throw new Error(
+ 'INVALID_STATE_ERR: connection must be opened before send() is called'
+ )
+ }
+
+ if (sendFlag) {
+ throw new Error('INVALID_STATE_ERR: send has already been called')
+ }
+
+ let host
+ let ssl = false
+ let local = false
+ const url = new URL(settings.url)
+
+ // Determine the server
+ switch (url.protocol) {
+ case 'https:':
+ ssl = true
+ host = url.hostname
+ break
+ case 'http:':
+ host = url.hostname
+ break
+
+ case 'file:':
+ local = true
+ break
+
+ case undefined:
+ case '':
+ host = 'localhost'
+ break
+
+ default:
+ throw new Error('Protocol not supported.')
+ }
+
+ // Load files off the local filesystem (file://)
+ if (local) {
+ if (settings.method !== 'GET') {
+ throw new Error('XMLHttpRequest: Only GET method is supported')
+ }
+
+ if (settings.async) {
+ fs.readFile(url.pathname, 'utf8', (error, data) => {
+ if (error) {
+ self.handleError(error)
+ } else {
+ self.status = 200
+ self.responseText = data
+ setState(self.DONE)
+ }
+ })
+ } else {
+ try {
+ this.responseText = fs.readFileSync(url.pathname, 'utf8')
+ this.status = 200
+ setState(self.DONE)
+ } catch (e) {
+ this.handleError(e)
+ }
+ }
+
+ return
+ }
+
+ // Default to port 80. If accessing localhost on another port be sure
+ // to use http://localhost:port/path
+ const port = url.port || (ssl ? 443 : 80)
+ // Add query string if one is used
+ const uri = url.pathname + (url.search ? url.search : '')
+
+ // Set the Host header or the server may reject the request
+ headers.Host = host
+ if (!((ssl && port === 443) || port === 80)) {
+ headers.Host += ':' + url.port
+ }
+
+ // Set Basic Auth if necessary
+ if (settings.user) {
+ if (typeof settings.password === 'undefined') {
+ settings.password = ''
+ }
+ const authBuf = Buffer.from(settings.user + ':' + settings.password)
+ headers.Authorization = 'Basic ' + authBuf.toString('base64')
+ }
+
+ // Set content length header
+ if (settings.method === 'GET' || settings.method === 'HEAD') {
+ data = null
+ } else if (data) {
+ headers['Content-Length'] = Buffer.byteLength(data)
+
+ if (!headers['Content-Type']) {
+ headers['Content-Type'] = 'text/plain;charset=UTF-8'
+ }
+ } else if (settings.method === 'POST') {
+ // For a post with no data set Content-Length: 0.
+ // This is required by buggy servers that don't meet the specs.
+ headers['Content-Length'] = 0
+ }
+
+ const options = {
+ host: host,
+ port: port,
+ path: uri,
+ method: settings.method,
+ headers: headers,
+ }
+
+ // Reset error flag
+ errorFlag = false
+
+ // Handle async requests
+ if (settings.async) {
+ // Use the proper protocol
+ const doRequest = ssl ? https.request : http.request
+
+ // Request is being sent, set send flag
+ sendFlag = true
+
+ // As per spec, this is called here for historical reasons.
+ self.dispatchEvent('readystatechange')
+
+ // Create the request
+ request = doRequest(options, resp => {
+ response = resp
+ response.setEncoding('utf8')
+
+ setState(self.HEADERS_RECEIVED)
+ self.status = response.statusCode
+
+ response.on('data', chunk => {
+ // Make sure there's some data
+ if (chunk) {
+ self.responseText += chunk
+ }
+ // Don't emit state changes if the connection has been aborted.
+ if (sendFlag) {
+ setState(self.LOADING)
+ }
+ })
+
+ response.on('end', () => {
+ if (sendFlag) {
+ // Discard the 'end' event if the connection has been aborted
+ setState(self.DONE)
+ sendFlag = false
+ }
+ })
+
+ response.on('error', error => {
+ self.handleError(error)
+ })
+ }).on('error', error => {
+ self.handleError(error)
+ })
+
+ // Node 0.4 and later won't accept empty data. Make sure it's needed.
+ if (data) {
+ request.write(data)
+ }
+
+ request.end()
+
+ self.dispatchEvent('loadstart')
+ } else {
+ // Synchronous
+ // Create a temporary file for communication with the other Node process
+ const syncFile = '.node-xmlhttprequest-sync-' + process.pid
+ fs.writeFileSync(syncFile, '', 'utf8')
+ // The async request the other Node process executes
+ const execString =
+ "var http = require('http'), https = require('https'), fs = require('fs');" +
+ 'var doRequest = http' +
+ (ssl ? 's' : '') +
+ '.request;' +
+ 'var options = ' +
+ JSON.stringify(options) +
+ ';' +
+ "var responseText = '';" +
+ 'var req = doRequest(options, function(response) {' +
+ "response.setEncoding('utf8');" +
+ "response.on('data', function(chunk) {" +
+ 'responseText += chunk;' +
+ '});' +
+ "response.on('end', function() {" +
+ "fs.writeFileSync('" +
+ syncFile +
+ "', 'NODE-XMLHTTPREQUEST-STATUS:' + response.statusCode + ',' + responseText, 'utf8');" +
+ '});' +
+ "response.on('error', function(error) {" +
+ "fs.writeFileSync('" +
+ syncFile +
+ "', 'NODE-XMLHTTPREQUEST-ERROR:' + JSON.stringify(error), 'utf8');" +
+ '});' +
+ "}).on('error', function(error) {" +
+ "fs.writeFileSync('" +
+ syncFile +
+ "', 'NODE-XMLHTTPREQUEST-ERROR:' + JSON.stringify(error), 'utf8');" +
+ '});' +
+ (data ? "req.write('" + data.replace(/'/g, "\\'") + "');" : '') +
+ 'req.end();'
+ // Start the other Node Process, executing this string
+ const syncProc = spawn(process.argv[0], ['-e', execString])
+ while ((self.responseText = fs.readFileSync(syncFile, 'utf8')) === '') {
+ // Wait while the file is empty
+ }
+ // Kill the child process once the file has data
+ syncProc.stdin.end()
+ // Remove the temporary file
+ fs.unlinkSync(syncFile)
+ if (self.responseText.match(/^NODE-XMLHTTPREQUEST-ERROR:/)) {
+ // If the file returned an error, handle it
+ const errorObj = self.responseText.replace(
+ /^NODE-XMLHTTPREQUEST-ERROR:/,
+ ''
+ )
+ self.handleError(errorObj)
+ } else {
+ // If the file returned okay, parse its data and move to the DONE state
+ self.status = self.responseText.replace(
+ /^NODE-XMLHTTPREQUEST-STATUS:([0-9]*),.*/,
+ '$1'
+ )
+ self.responseText = self.responseText.replace(
+ /^NODE-XMLHTTPREQUEST-STATUS:[0-9]*,(.*)/,
+ '$1'
+ )
+ setState(self.DONE)
+ }
+ }
+ }
+
+ /**
+ * Called when an error is encountered to deal with it.
+ */
+ this.handleError = function (error) {
+ this.status = 503
+ this.statusText = error
+ this.responseText = error.stack
+ errorFlag = true
+ setState(this.DONE)
+ }
+
+ /**
+ * Aborts a request.
+ */
+ this.abort = function () {
+ if (request) {
+ request.abort()
+ request = null
+ }
+
+ headers = defaultHeaders
+ this.responseText = ''
+ this.responseXML = ''
+
+ errorFlag = true
+
+ if (
+ this.readyState !== this.UNSENT &&
+ (this.readyState !== this.OPENED || sendFlag) &&
+ this.readyState !== this.DONE
+ ) {
+ sendFlag = false
+ setState(this.DONE)
+ }
+ this.readyState = this.UNSENT
+ }
+
+ /**
+ * Adds an event listener. Preferred method of binding to events.
+ */
+ this.addEventListener = function (event, callback) {
+ if (!(event in listeners)) {
+ listeners[event] = []
+ }
+ // Currently allows duplicate callbacks. Should it?
+ listeners[event].push(callback)
+ }
+
+ /**
+ * Remove an event callback that has already been bound.
+ * Only works on the matching funciton, cannot be a copy.
+ */
+ this.removeEventListener = function (event, callback) {
+ if (event in listeners) {
+ // Filter will return a new array with the callback removed
+ listeners[event] = listeners[event].filter(ev => {
+ return ev !== callback
+ })
+ }
+ }
+
+ /**
+ * Dispatch any events, including both "on" methods and events attached using addEventListener.
+ */
+ this.dispatchEvent = function (event) {
+ if (typeof self['on' + event] === 'function') {
+ self['on' + event]()
+ }
+ if (event in listeners) {
+ for (let i = 0, len = listeners[event].length; i < len; i++) {
+ listeners[event][i].call(self)
+ }
+ }
+ }
+
+ /**
+ * Changes readyState and calls onreadystatechange.
+ *
+ * @param int state New state
+ */
+ var setState = function (state) {
+ if (self.readyState !== state) {
+ self.readyState = state
+
+ if (
+ settings.async ||
+ self.readyState < self.OPENED ||
+ self.readyState === self.DONE
+ ) {
+ self.dispatchEvent('readystatechange')
+ }
+
+ if (self.readyState === self.DONE && !errorFlag) {
+ self.dispatchEvent('load')
+ // @TODO figure out InspectorInstrumentation::didLoadXHR(cookie)
+ self.dispatchEvent('loadend')
+ }
+ }
+ }
+}
diff --git a/services/real-time/test/acceptance/scripts/full-test.sh b/services/real-time/test/acceptance/scripts/full-test.sh
new file mode 100755
index 0000000000..8584cd17d0
--- /dev/null
+++ b/services/real-time/test/acceptance/scripts/full-test.sh
@@ -0,0 +1,23 @@
+#! /usr/bin/env bash
+
+# npm rebuild
+
+echo ">> Starting server..."
+
+grunt --no-color forever:app:start
+
+echo ">> Server started"
+
+sleep 5
+
+echo ">> Running acceptance tests..."
+grunt --no-color mochaTest:acceptance
+_test_exit_code=$?
+
+echo ">> Killing server"
+
+grunt --no-color forever:app:stop
+
+echo ">> Done"
+
+exit $_test_exit_code
diff --git a/services/real-time/test/setup.js b/services/real-time/test/setup.js
new file mode 100644
index 0000000000..19520444e8
--- /dev/null
+++ b/services/real-time/test/setup.js
@@ -0,0 +1,38 @@
+const chai = require('chai')
+const SandboxedModule = require('sandboxed-module')
+const sinon = require('sinon')
+
+// Chai configuration
+chai.should()
+
+// Global stubs
+const sandbox = sinon.createSandbox()
+const stubs = {
+ logger: {
+ debug: sandbox.stub(),
+ log: sandbox.stub(),
+ info: sandbox.stub(),
+ warn: sandbox.stub(),
+ err: sandbox.stub(),
+ error: sandbox.stub(),
+ },
+}
+
+// SandboxedModule configuration
+SandboxedModule.configure({
+ requires: {
+ 'logger-sharelatex': stubs.logger,
+ },
+ globals: { Buffer, JSON, console, process },
+})
+
+// Mocha hooks
+exports.mochaHooks = {
+ beforeEach() {
+ this.logger = stubs.logger
+ },
+
+ afterEach() {
+ sandbox.reset()
+ },
+}
diff --git a/services/real-time/test/unit/js/AuthorizationManagerTests.js b/services/real-time/test/unit/js/AuthorizationManagerTests.js
new file mode 100644
index 0000000000..422ce8d15d
--- /dev/null
+++ b/services/real-time/test/unit/js/AuthorizationManagerTests.js
@@ -0,0 +1,318 @@
+/* eslint-disable
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const sinon = require('sinon')
+const SandboxedModule = require('sandboxed-module')
+const path = require('path')
+const modulePath = '../../../app/js/AuthorizationManager'
+
+describe('AuthorizationManager', function () {
+ beforeEach(function () {
+ this.client = { ol_context: {} }
+
+ return (this.AuthorizationManager = SandboxedModule.require(modulePath, {
+ requires: {},
+ }))
+ })
+
+ describe('assertClientCanViewProject', function () {
+ it('should allow the readOnly privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'readOnly'
+ return this.AuthorizationManager.assertClientCanViewProject(
+ this.client,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+
+ it('should allow the readAndWrite privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'readAndWrite'
+ return this.AuthorizationManager.assertClientCanViewProject(
+ this.client,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+
+ it('should allow the owner privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'owner'
+ return this.AuthorizationManager.assertClientCanViewProject(
+ this.client,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+
+ return it('should return an error with any other privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'unknown'
+ return this.AuthorizationManager.assertClientCanViewProject(
+ this.client,
+ error => {
+ error.message.should.equal('not authorized')
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('assertClientCanEditProject', function () {
+ it('should not allow the readOnly privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'readOnly'
+ return this.AuthorizationManager.assertClientCanEditProject(
+ this.client,
+ error => {
+ error.message.should.equal('not authorized')
+ return done()
+ }
+ )
+ })
+
+ it('should allow the readAndWrite privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'readAndWrite'
+ return this.AuthorizationManager.assertClientCanEditProject(
+ this.client,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+
+ it('should allow the owner privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'owner'
+ return this.AuthorizationManager.assertClientCanEditProject(
+ this.client,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+
+ return it('should return an error with any other privilegeLevel', function (done) {
+ this.client.ol_context.privilege_level = 'unknown'
+ return this.AuthorizationManager.assertClientCanEditProject(
+ this.client,
+ error => {
+ error.message.should.equal('not authorized')
+ return done()
+ }
+ )
+ })
+ })
+
+ // check doc access for project
+
+ describe('assertClientCanViewProjectAndDoc', function () {
+ beforeEach(function () {
+ this.doc_id = '12345'
+ this.callback = sinon.stub()
+ return (this.client.ol_context = {})
+ })
+
+ describe('when not authorised at the project level', function () {
+ beforeEach(function () {
+ return (this.client.ol_context.privilege_level = 'unknown')
+ })
+
+ it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanViewProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+
+ return describe('even when authorised at the doc level', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ })
+
+ return it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanViewProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+ })
+
+ return describe('when authorised at the project level', function () {
+ beforeEach(function () {
+ return (this.client.ol_context.privilege_level = 'readOnly')
+ })
+
+ describe('and not authorised at the document level', function () {
+ return it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanViewProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+
+ describe('and authorised at the document level', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ })
+
+ return it('should allow access', function () {
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc(
+ this.client,
+ this.doc_id,
+ this.callback
+ )
+ return this.callback.calledWith(null).should.equal(true)
+ })
+ })
+
+ return describe('when document authorisation is added and then removed', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ () => {
+ return this.AuthorizationManager.removeAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ }
+ )
+ })
+
+ return it('should deny access', function () {
+ return this.AuthorizationManager.assertClientCanViewProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+ })
+ })
+
+ return describe('assertClientCanEditProjectAndDoc', function () {
+ beforeEach(function () {
+ this.doc_id = '12345'
+ this.callback = sinon.stub()
+ return (this.client.ol_context = {})
+ })
+
+ describe('when not authorised at the project level', function () {
+ beforeEach(function () {
+ return (this.client.ol_context.privilege_level = 'readOnly')
+ })
+
+ it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanEditProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+
+ return describe('even when authorised at the doc level', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ })
+
+ return it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanEditProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+ })
+
+ return describe('when authorised at the project level', function () {
+ beforeEach(function () {
+ return (this.client.ol_context.privilege_level = 'readAndWrite')
+ })
+
+ describe('and not authorised at the document level', function () {
+ return it('should not allow access', function () {
+ return this.AuthorizationManager.assertClientCanEditProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+
+ describe('and authorised at the document level', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ })
+
+ return it('should allow access', function () {
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc(
+ this.client,
+ this.doc_id,
+ this.callback
+ )
+ return this.callback.calledWith(null).should.equal(true)
+ })
+ })
+
+ return describe('when document authorisation is added and then removed', function () {
+ beforeEach(function (done) {
+ return this.AuthorizationManager.addAccessToDoc(
+ this.client,
+ this.doc_id,
+ () => {
+ return this.AuthorizationManager.removeAccessToDoc(
+ this.client,
+ this.doc_id,
+ done
+ )
+ }
+ )
+ })
+
+ return it('should deny access', function () {
+ return this.AuthorizationManager.assertClientCanEditProjectAndDoc(
+ this.client,
+ this.doc_id,
+ err => err.message.should.equal('not authorized')
+ )
+ })
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/ChannelManagerTests.js b/services/real-time/test/unit/js/ChannelManagerTests.js
new file mode 100644
index 0000000000..2e51c584f2
--- /dev/null
+++ b/services/real-time/test/unit/js/ChannelManagerTests.js
@@ -0,0 +1,432 @@
+/* eslint-disable
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const sinon = require('sinon')
+const modulePath = '../../../app/js/ChannelManager.js'
+const SandboxedModule = require('sandboxed-module')
+
+describe('ChannelManager', function () {
+ beforeEach(function () {
+ this.rclient = {}
+ this.other_rclient = {}
+ return (this.ChannelManager = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': (this.settings = {}),
+ '@overleaf/metrics': (this.metrics = {
+ inc: sinon.stub(),
+ summary: sinon.stub(),
+ }),
+ },
+ }))
+ })
+
+ describe('subscribe', function () {
+ describe('when there is no existing subscription for this redis client', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should subscribe to the redis channel', function () {
+ return this.rclient.subscribe
+ .calledWithExactly('applied-ops:1234567890abcdef')
+ .should.equal(true)
+ })
+ })
+
+ describe('when there is an existing subscription for this redis client', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should subscribe to the redis channel again', function () {
+ return this.rclient.subscribe.callCount.should.equal(2)
+ })
+ })
+
+ describe('when subscribe errors', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon
+ .stub()
+ .onFirstCall()
+ .rejects(new Error('some redis error'))
+ .onSecondCall()
+ .resolves()
+ const p = this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ p.then(() => done(new Error('should not subscribe but fail'))).catch(
+ err => {
+ err.message.should.equal('failed to subscribe to channel')
+ err.cause.message.should.equal('some redis error')
+ this.ChannelManager.getClientMapEntry(this.rclient)
+ .has('applied-ops:1234567890abcdef')
+ .should.equal(false)
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ // subscribe is wrapped in Promise, delay other assertions
+ return setTimeout(done)
+ }
+ )
+ return null
+ })
+
+ it('should have recorded the error', function () {
+ return expect(
+ this.metrics.inc.calledWithExactly('subscribe.failed.applied-ops')
+ ).to.equal(true)
+ })
+
+ it('should subscribe again', function () {
+ return this.rclient.subscribe.callCount.should.equal(2)
+ })
+
+ return it('should cleanup', function () {
+ return this.ChannelManager.getClientMapEntry(this.rclient)
+ .has('applied-ops:1234567890abcdef')
+ .should.equal(false)
+ })
+ })
+
+ describe('when subscribe errors and the clientChannelMap entry was replaced', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon
+ .stub()
+ .onFirstCall()
+ .rejects(new Error('some redis error'))
+ .onSecondCall()
+ .resolves()
+ this.first = this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ // ignore error
+ this.first.catch(() => {})
+ expect(
+ this.ChannelManager.getClientMapEntry(this.rclient).get(
+ 'applied-ops:1234567890abcdef'
+ )
+ ).to.equal(this.first)
+
+ this.rclient.unsubscribe = sinon.stub().resolves()
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.second = this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ // should get replaced immediately
+ expect(
+ this.ChannelManager.getClientMapEntry(this.rclient).get(
+ 'applied-ops:1234567890abcdef'
+ )
+ ).to.equal(this.second)
+
+ // let the first subscribe error -> unsubscribe -> subscribe
+ return setTimeout(done)
+ })
+
+ return it('should cleanup the second subscribePromise', function () {
+ return expect(
+ this.ChannelManager.getClientMapEntry(this.rclient).has(
+ 'applied-ops:1234567890abcdef'
+ )
+ ).to.equal(false)
+ })
+ })
+
+ return describe('when there is an existing subscription for another redis client but not this one', function () {
+ beforeEach(function (done) {
+ this.other_rclient.subscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.other_rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.rclient.subscribe = sinon.stub().resolves() // discard the original stub
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should subscribe to the redis channel on this redis client', function () {
+ return this.rclient.subscribe
+ .calledWithExactly('applied-ops:1234567890abcdef')
+ .should.equal(true)
+ })
+ })
+ })
+
+ describe('unsubscribe', function () {
+ describe('when there is no existing subscription for this redis client', function () {
+ beforeEach(function (done) {
+ this.rclient.unsubscribe = sinon.stub().resolves()
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should unsubscribe from the redis channel', function () {
+ return this.rclient.unsubscribe.called.should.equal(true)
+ })
+ })
+
+ describe('when there is an existing subscription for this another redis client but not this one', function () {
+ beforeEach(function (done) {
+ this.other_rclient.subscribe = sinon.stub().resolves()
+ this.rclient.unsubscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.other_rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should still unsubscribe from the redis channel on this client', function () {
+ return this.rclient.unsubscribe.called.should.equal(true)
+ })
+ })
+
+ describe('when unsubscribe errors and completes', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.rclient.unsubscribe = sinon
+ .stub()
+ .rejects(new Error('some redis error'))
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ setTimeout(done)
+ return null
+ })
+
+ it('should have cleaned up', function () {
+ return this.ChannelManager.getClientMapEntry(this.rclient)
+ .has('applied-ops:1234567890abcdef')
+ .should.equal(false)
+ })
+
+ return it('should not error out when subscribing again', function (done) {
+ const p = this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ p.then(() => done()).catch(done)
+ return null
+ })
+ })
+
+ describe('when unsubscribe errors and another client subscribes at the same time', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ let rejectSubscribe
+ this.rclient.unsubscribe = () =>
+ new Promise((resolve, reject) => (rejectSubscribe = reject))
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+
+ setTimeout(() => {
+ // delay, actualUnsubscribe should not see the new subscribe request
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ .then(() => setTimeout(done))
+ .catch(done)
+ return setTimeout(() =>
+ // delay, rejectSubscribe is not defined immediately
+ rejectSubscribe(new Error('redis error'))
+ )
+ })
+ return null
+ })
+
+ it('should have recorded the error', function () {
+ return expect(
+ this.metrics.inc.calledWithExactly('unsubscribe.failed.applied-ops')
+ ).to.equal(true)
+ })
+
+ it('should have subscribed', function () {
+ return this.rclient.subscribe.called.should.equal(true)
+ })
+
+ return it('should have discarded the finished Promise', function () {
+ return this.ChannelManager.getClientMapEntry(this.rclient)
+ .has('applied-ops:1234567890abcdef')
+ .should.equal(false)
+ })
+ })
+
+ return describe('when there is an existing subscription for this redis client', function () {
+ beforeEach(function (done) {
+ this.rclient.subscribe = sinon.stub().resolves()
+ this.rclient.unsubscribe = sinon.stub().resolves()
+ this.ChannelManager.subscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ this.ChannelManager.unsubscribe(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef'
+ )
+ return setTimeout(done)
+ })
+
+ return it('should unsubscribe from the redis channel', function () {
+ return this.rclient.unsubscribe
+ .calledWithExactly('applied-ops:1234567890abcdef')
+ .should.equal(true)
+ })
+ })
+ })
+
+ return describe('publish', function () {
+ describe("when the channel is 'all'", function () {
+ beforeEach(function () {
+ this.rclient.publish = sinon.stub()
+ return this.ChannelManager.publish(
+ this.rclient,
+ 'applied-ops',
+ 'all',
+ 'random-message'
+ )
+ })
+
+ return it('should publish on the base channel', function () {
+ return this.rclient.publish
+ .calledWithExactly('applied-ops', 'random-message')
+ .should.equal(true)
+ })
+ })
+
+ describe('when the channel has an specific id', function () {
+ describe('when the individual channel setting is false', function () {
+ beforeEach(function () {
+ this.rclient.publish = sinon.stub()
+ this.settings.publishOnIndividualChannels = false
+ return this.ChannelManager.publish(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef',
+ 'random-message'
+ )
+ })
+
+ return it('should publish on the per-id channel', function () {
+ this.rclient.publish
+ .calledWithExactly('applied-ops', 'random-message')
+ .should.equal(true)
+ return this.rclient.publish.calledOnce.should.equal(true)
+ })
+ })
+
+ return describe('when the individual channel setting is true', function () {
+ beforeEach(function () {
+ this.rclient.publish = sinon.stub()
+ this.settings.publishOnIndividualChannels = true
+ return this.ChannelManager.publish(
+ this.rclient,
+ 'applied-ops',
+ '1234567890abcdef',
+ 'random-message'
+ )
+ })
+
+ return it('should publish on the per-id channel', function () {
+ this.rclient.publish
+ .calledWithExactly('applied-ops:1234567890abcdef', 'random-message')
+ .should.equal(true)
+ return this.rclient.publish.calledOnce.should.equal(true)
+ })
+ })
+ })
+
+ return describe('metrics', function () {
+ beforeEach(function () {
+ this.rclient.publish = sinon.stub()
+ return this.ChannelManager.publish(
+ this.rclient,
+ 'applied-ops',
+ 'all',
+ 'random-message'
+ )
+ })
+
+ return it('should track the payload size', function () {
+ return this.metrics.summary
+ .calledWithExactly(
+ 'redis.publish.applied-ops',
+ 'random-message'.length
+ )
+ .should.equal(true)
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/ConnectedUsersManagerTests.js b/services/real-time/test/unit/js/ConnectedUsersManagerTests.js
new file mode 100644
index 0000000000..51abee1bc7
--- /dev/null
+++ b/services/real-time/test/unit/js/ConnectedUsersManagerTests.js
@@ -0,0 +1,407 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+
+const SandboxedModule = require('sandboxed-module')
+const assert = require('assert')
+const path = require('path')
+const sinon = require('sinon')
+const modulePath = path.join(__dirname, '../../../app/js/ConnectedUsersManager')
+const { expect } = require('chai')
+const tk = require('timekeeper')
+
+describe('ConnectedUsersManager', function () {
+ beforeEach(function () {
+ this.settings = {
+ redis: {
+ realtime: {
+ key_schema: {
+ clientsInProject({ project_id }) {
+ return `clients_in_project:${project_id}`
+ },
+ connectedUser({ project_id, client_id }) {
+ return `connected_user:${project_id}:${client_id}`
+ },
+ },
+ },
+ },
+ }
+ this.rClient = {
+ auth() {},
+ setex: sinon.stub(),
+ sadd: sinon.stub(),
+ get: sinon.stub(),
+ srem: sinon.stub(),
+ del: sinon.stub(),
+ smembers: sinon.stub(),
+ expire: sinon.stub(),
+ hset: sinon.stub(),
+ hgetall: sinon.stub(),
+ exec: sinon.stub(),
+ multi: () => {
+ return this.rClient
+ },
+ }
+ tk.freeze(new Date())
+
+ this.ConnectedUsersManager = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': this.settings,
+ '@overleaf/redis-wrapper': {
+ createClient: () => {
+ return this.rClient
+ },
+ },
+ },
+ })
+ this.client_id = '32132132'
+ this.project_id = 'dskjh2u21321'
+ this.user = {
+ _id: 'user-id-123',
+ first_name: 'Joe',
+ last_name: 'Bloggs',
+ email: 'joe@example.com',
+ }
+ return (this.cursorData = {
+ row: 12,
+ column: 9,
+ doc_id: '53c3b8c85fee64000023dc6e',
+ })
+ })
+
+ afterEach(function () {
+ return tk.reset()
+ })
+
+ describe('updateUserPosition', function () {
+ beforeEach(function () {
+ return this.rClient.exec.callsArgWith(0)
+ })
+
+ it('should set a key with the date and give it a ttl', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'last_updated_at',
+ Date.now()
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should set a key with the user_id', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'user_id',
+ this.user._id
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should set a key with the first_name', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'first_name',
+ this.user.first_name
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should set a key with the last_name', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'last_name',
+ this.user.last_name
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should set a key with the email', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'email',
+ this.user.email
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should push the client_id on to the project list', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.sadd
+ .calledWith(`clients_in_project:${this.project_id}`, this.client_id)
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should add a ttl to the project set so it stays clean', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.expire
+ .calledWith(
+ `clients_in_project:${this.project_id}`,
+ 24 * 4 * 60 * 60
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should add a ttl to the connected user so it stays clean', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ null,
+ err => {
+ this.rClient.expire
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 60 * 15
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ return it('should set the cursor position when provided', function (done) {
+ return this.ConnectedUsersManager.updateUserPosition(
+ this.project_id,
+ this.client_id,
+ this.user,
+ this.cursorData,
+ err => {
+ this.rClient.hset
+ .calledWith(
+ `connected_user:${this.project_id}:${this.client_id}`,
+ 'cursorData',
+ JSON.stringify(this.cursorData)
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('markUserAsDisconnected', function () {
+ beforeEach(function () {
+ return this.rClient.exec.callsArgWith(0)
+ })
+
+ it('should remove the user from the set', function (done) {
+ return this.ConnectedUsersManager.markUserAsDisconnected(
+ this.project_id,
+ this.client_id,
+ err => {
+ this.rClient.srem
+ .calledWith(`clients_in_project:${this.project_id}`, this.client_id)
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ it('should delete the connected_user string', function (done) {
+ return this.ConnectedUsersManager.markUserAsDisconnected(
+ this.project_id,
+ this.client_id,
+ err => {
+ this.rClient.del
+ .calledWith(`connected_user:${this.project_id}:${this.client_id}`)
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+
+ return it('should add a ttl to the connected user set so it stays clean', function (done) {
+ return this.ConnectedUsersManager.markUserAsDisconnected(
+ this.project_id,
+ this.client_id,
+ err => {
+ this.rClient.expire
+ .calledWith(
+ `clients_in_project:${this.project_id}`,
+ 24 * 4 * 60 * 60
+ )
+ .should.equal(true)
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('_getConnectedUser', function () {
+ it('should return a connected user if there is a user object', function (done) {
+ const cursorData = JSON.stringify({ cursorData: { row: 1 } })
+ this.rClient.hgetall.callsArgWith(1, null, {
+ connected_at: new Date(),
+ user_id: this.user._id,
+ last_updated_at: `${Date.now()}`,
+ cursorData,
+ })
+ return this.ConnectedUsersManager._getConnectedUser(
+ this.project_id,
+ this.client_id,
+ (err, result) => {
+ result.connected.should.equal(true)
+ result.client_id.should.equal(this.client_id)
+ return done()
+ }
+ )
+ })
+
+ it('should return a not connected user if there is no object', function (done) {
+ this.rClient.hgetall.callsArgWith(1, null, null)
+ return this.ConnectedUsersManager._getConnectedUser(
+ this.project_id,
+ this.client_id,
+ (err, result) => {
+ result.connected.should.equal(false)
+ result.client_id.should.equal(this.client_id)
+ return done()
+ }
+ )
+ })
+
+ return it('should return a not connected user if there is an empty object', function (done) {
+ this.rClient.hgetall.callsArgWith(1, null, {})
+ return this.ConnectedUsersManager._getConnectedUser(
+ this.project_id,
+ this.client_id,
+ (err, result) => {
+ result.connected.should.equal(false)
+ result.client_id.should.equal(this.client_id)
+ return done()
+ }
+ )
+ })
+ })
+
+ return describe('getConnectedUsers', function () {
+ beforeEach(function () {
+ this.users = ['1234', '5678', '9123', '8234']
+ this.rClient.smembers.callsArgWith(1, null, this.users)
+ this.ConnectedUsersManager._getConnectedUser = sinon.stub()
+ this.ConnectedUsersManager._getConnectedUser
+ .withArgs(this.project_id, this.users[0])
+ .callsArgWith(2, null, {
+ connected: true,
+ client_age: 2,
+ client_id: this.users[0],
+ })
+ this.ConnectedUsersManager._getConnectedUser
+ .withArgs(this.project_id, this.users[1])
+ .callsArgWith(2, null, {
+ connected: false,
+ client_age: 1,
+ client_id: this.users[1],
+ })
+ this.ConnectedUsersManager._getConnectedUser
+ .withArgs(this.project_id, this.users[2])
+ .callsArgWith(2, null, {
+ connected: true,
+ client_age: 3,
+ client_id: this.users[2],
+ })
+ return this.ConnectedUsersManager._getConnectedUser
+ .withArgs(this.project_id, this.users[3])
+ .callsArgWith(2, null, {
+ connected: true,
+ client_age: 11,
+ client_id: this.users[3],
+ })
+ }) // connected but old
+
+ return it('should only return the users in the list which are still in redis and recently updated', function (done) {
+ return this.ConnectedUsersManager.getConnectedUsers(
+ this.project_id,
+ (err, users) => {
+ users.length.should.equal(2)
+ users[0].should.deep.equal({
+ client_id: this.users[0],
+ client_age: 2,
+ connected: true,
+ })
+ users[1].should.deep.equal({
+ client_id: this.users[2],
+ client_age: 3,
+ connected: true,
+ })
+ return done()
+ }
+ )
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/DocumentUpdaterControllerTests.js b/services/real-time/test/unit/js/DocumentUpdaterControllerTests.js
new file mode 100644
index 0000000000..20fa5bfe18
--- /dev/null
+++ b/services/real-time/test/unit/js/DocumentUpdaterControllerTests.js
@@ -0,0 +1,257 @@
+/* eslint-disable
+ camelcase,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const SandboxedModule = require('sandboxed-module')
+const sinon = require('sinon')
+const modulePath = require('path').join(
+ __dirname,
+ '../../../app/js/DocumentUpdaterController'
+)
+const MockClient = require('./helpers/MockClient')
+
+describe('DocumentUpdaterController', function () {
+ beforeEach(function () {
+ this.project_id = 'project-id-123'
+ this.doc_id = 'doc-id-123'
+ this.callback = sinon.stub()
+ this.io = { mock: 'socket.io' }
+ this.rclient = []
+ this.RoomEvents = { on: sinon.stub() }
+ this.EditorUpdatesController = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': (this.settings = {
+ redis: {
+ documentupdater: {
+ key_schema: {
+ pendingUpdates({ doc_id }) {
+ return `PendingUpdates:${doc_id}`
+ },
+ },
+ },
+ pubsub: null,
+ },
+ }),
+ './RedisClientManager': {
+ createClientList: () => {
+ this.redis = {
+ createClient: name => {
+ let rclientStub
+ this.rclient.push((rclientStub = { name }))
+ return rclientStub
+ },
+ }
+ },
+ },
+ './SafeJsonParse': (this.SafeJsonParse = {
+ parse: (data, cb) => cb(null, JSON.parse(data)),
+ }),
+ './EventLogger': (this.EventLogger = { checkEventOrder: sinon.stub() }),
+ './HealthCheckManager': { check: sinon.stub() },
+ '@overleaf/metrics': (this.metrics = { inc: sinon.stub() }),
+ './RoomManager': (this.RoomManager = {
+ eventSource: sinon.stub().returns(this.RoomEvents),
+ }),
+ './ChannelManager': (this.ChannelManager = {}),
+ },
+ })
+ })
+
+ describe('listenForUpdatesFromDocumentUpdater', function () {
+ beforeEach(function () {
+ this.rclient.length = 0 // clear any existing clients
+ this.EditorUpdatesController.rclientList = [
+ this.redis.createClient('first'),
+ this.redis.createClient('second'),
+ ]
+ this.rclient[0].subscribe = sinon.stub()
+ this.rclient[0].on = sinon.stub()
+ this.rclient[1].subscribe = sinon.stub()
+ this.rclient[1].on = sinon.stub()
+ this.EditorUpdatesController.listenForUpdatesFromDocumentUpdater()
+ })
+
+ it('should subscribe to the doc-updater stream', function () {
+ this.rclient[0].subscribe.calledWith('applied-ops').should.equal(true)
+ })
+
+ it('should register a callback to handle updates', function () {
+ this.rclient[0].on.calledWith('message').should.equal(true)
+ })
+
+ it('should subscribe to any additional doc-updater stream', function () {
+ this.rclient[1].subscribe.calledWith('applied-ops').should.equal(true)
+ this.rclient[1].on.calledWith('message').should.equal(true)
+ })
+ })
+
+ describe('_processMessageFromDocumentUpdater', function () {
+ describe('with bad JSON', function () {
+ beforeEach(function () {
+ this.SafeJsonParse.parse = sinon
+ .stub()
+ .callsArgWith(1, new Error('oops'))
+ return this.EditorUpdatesController._processMessageFromDocumentUpdater(
+ this.io,
+ 'applied-ops',
+ 'blah'
+ )
+ })
+
+ it('should log an error', function () {
+ return this.logger.error.called.should.equal(true)
+ })
+ })
+
+ describe('with update', function () {
+ beforeEach(function () {
+ this.message = {
+ doc_id: this.doc_id,
+ op: { t: 'foo', p: 12 },
+ }
+ this.EditorUpdatesController._applyUpdateFromDocumentUpdater =
+ sinon.stub()
+ return this.EditorUpdatesController._processMessageFromDocumentUpdater(
+ this.io,
+ 'applied-ops',
+ JSON.stringify(this.message)
+ )
+ })
+
+ it('should apply the update', function () {
+ return this.EditorUpdatesController._applyUpdateFromDocumentUpdater
+ .calledWith(this.io, this.doc_id, this.message.op)
+ .should.equal(true)
+ })
+ })
+
+ describe('with error', function () {
+ beforeEach(function () {
+ this.message = {
+ doc_id: this.doc_id,
+ error: 'Something went wrong',
+ }
+ this.EditorUpdatesController._processErrorFromDocumentUpdater =
+ sinon.stub()
+ return this.EditorUpdatesController._processMessageFromDocumentUpdater(
+ this.io,
+ 'applied-ops',
+ JSON.stringify(this.message)
+ )
+ })
+
+ return it('should process the error', function () {
+ return this.EditorUpdatesController._processErrorFromDocumentUpdater
+ .calledWith(this.io, this.doc_id, this.message.error)
+ .should.equal(true)
+ })
+ })
+ })
+
+ describe('_applyUpdateFromDocumentUpdater', function () {
+ beforeEach(function () {
+ this.sourceClient = new MockClient()
+ this.otherClients = [new MockClient(), new MockClient()]
+ this.update = {
+ op: [{ t: 'foo', p: 12 }],
+ meta: { source: this.sourceClient.publicId },
+ v: (this.version = 42),
+ doc: this.doc_id,
+ }
+ return (this.io.sockets = {
+ clients: sinon
+ .stub()
+ .returns([
+ this.sourceClient,
+ ...Array.from(this.otherClients),
+ this.sourceClient,
+ ]),
+ })
+ }) // include a duplicate client
+
+ describe('normally', function () {
+ beforeEach(function () {
+ return this.EditorUpdatesController._applyUpdateFromDocumentUpdater(
+ this.io,
+ this.doc_id,
+ this.update
+ )
+ })
+
+ it('should send a version bump to the source client', function () {
+ this.sourceClient.emit
+ .calledWith('otUpdateApplied', { v: this.version, doc: this.doc_id })
+ .should.equal(true)
+ return this.sourceClient.emit.calledOnce.should.equal(true)
+ })
+
+ it('should get the clients connected to the document', function () {
+ return this.io.sockets.clients
+ .calledWith(this.doc_id)
+ .should.equal(true)
+ })
+
+ return it('should send the full update to the other clients', function () {
+ return Array.from(this.otherClients).map(client =>
+ client.emit
+ .calledWith('otUpdateApplied', this.update)
+ .should.equal(true)
+ )
+ })
+ })
+
+ return describe('with a duplicate op', function () {
+ beforeEach(function () {
+ this.update.dup = true
+ return this.EditorUpdatesController._applyUpdateFromDocumentUpdater(
+ this.io,
+ this.doc_id,
+ this.update
+ )
+ })
+
+ it('should send a version bump to the source client as usual', function () {
+ return this.sourceClient.emit
+ .calledWith('otUpdateApplied', { v: this.version, doc: this.doc_id })
+ .should.equal(true)
+ })
+
+ return it("should not send anything to the other clients (they've already had the op)", function () {
+ return Array.from(this.otherClients).map(client =>
+ client.emit.calledWith('otUpdateApplied').should.equal(false)
+ )
+ })
+ })
+ })
+
+ return describe('_processErrorFromDocumentUpdater', function () {
+ beforeEach(function () {
+ this.clients = [new MockClient(), new MockClient()]
+ this.io.sockets = { clients: sinon.stub().returns(this.clients) }
+ return this.EditorUpdatesController._processErrorFromDocumentUpdater(
+ this.io,
+ this.doc_id,
+ 'Something went wrong'
+ )
+ })
+
+ it('should log a warning', function () {
+ return this.logger.warn.called.should.equal(true)
+ })
+
+ return it('should disconnect all clients in that document', function () {
+ this.io.sockets.clients.calledWith(this.doc_id).should.equal(true)
+ return Array.from(this.clients).map(client =>
+ client.disconnect.called.should.equal(true)
+ )
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/DocumentUpdaterManagerTests.js b/services/real-time/test/unit/js/DocumentUpdaterManagerTests.js
new file mode 100644
index 0000000000..9d565b4a3b
--- /dev/null
+++ b/services/real-time/test/unit/js/DocumentUpdaterManagerTests.js
@@ -0,0 +1,424 @@
+/* eslint-disable
+ camelcase,
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const sinon = require('sinon')
+const SandboxedModule = require('sandboxed-module')
+const path = require('path')
+const modulePath = '../../../app/js/DocumentUpdaterManager'
+const _ = require('underscore')
+
+describe('DocumentUpdaterManager', function () {
+ beforeEach(function () {
+ let Timer
+ this.project_id = 'project-id-923'
+ this.doc_id = 'doc-id-394'
+ this.lines = ['one', 'two', 'three']
+ this.version = 42
+ this.settings = {
+ apis: { documentupdater: { url: 'http://doc-updater.example.com' } },
+ redis: {
+ documentupdater: {
+ key_schema: {
+ pendingUpdates({ doc_id }) {
+ return `PendingUpdates:${doc_id}`
+ },
+ },
+ },
+ },
+ maxUpdateSize: 7 * 1024 * 1024,
+ pendingUpdateListShardCount: 10,
+ }
+ this.rclient = { auth() {} }
+
+ return (this.DocumentUpdaterManager = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': this.settings,
+ request: (this.request = {}),
+ '@overleaf/redis-wrapper': { createClient: () => this.rclient },
+ '@overleaf/metrics': (this.Metrics = {
+ summary: sinon.stub(),
+ Timer: (Timer = class Timer {
+ done() {}
+ }),
+ }),
+ },
+ }))
+ }) // avoid modifying JSON object directly
+
+ describe('getDocument', function () {
+ beforeEach(function () {
+ return (this.callback = sinon.stub())
+ })
+
+ describe('successfully', function () {
+ beforeEach(function () {
+ this.body = JSON.stringify({
+ lines: this.lines,
+ version: this.version,
+ ops: (this.ops = ['mock-op-1', 'mock-op-2']),
+ ranges: (this.ranges = { mock: 'ranges' }),
+ })
+ this.fromVersion = 2
+ this.request.get = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 200 }, this.body)
+ return this.DocumentUpdaterManager.getDocument(
+ this.project_id,
+ this.doc_id,
+ this.fromVersion,
+ this.callback
+ )
+ })
+
+ it('should get the document from the document updater', function () {
+ const url = `${this.settings.apis.documentupdater.url}/project/${this.project_id}/doc/${this.doc_id}?fromVersion=${this.fromVersion}`
+ return this.request.get.calledWith(url).should.equal(true)
+ })
+
+ return it('should call the callback with the lines, version, ranges and ops', function () {
+ return this.callback
+ .calledWith(null, this.lines, this.version, this.ranges, this.ops)
+ .should.equal(true)
+ })
+ })
+
+ describe('when the document updater API returns an error', function () {
+ beforeEach(function () {
+ this.request.get = sinon
+ .stub()
+ .callsArgWith(
+ 1,
+ (this.error = new Error('something went wrong')),
+ null,
+ null
+ )
+ return this.DocumentUpdaterManager.getDocument(
+ this.project_id,
+ this.doc_id,
+ this.fromVersion,
+ this.callback
+ )
+ })
+
+ return it('should return an error to the callback', function () {
+ return this.callback.calledWith(this.error).should.equal(true)
+ })
+ })
+ ;[404, 422].forEach(statusCode =>
+ describe(`when the document updater returns a ${statusCode} status code`, function () {
+ beforeEach(function () {
+ this.request.get = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode }, '')
+ return this.DocumentUpdaterManager.getDocument(
+ this.project_id,
+ this.doc_id,
+ this.fromVersion,
+ this.callback
+ )
+ })
+
+ return it('should return the callback with an error', function () {
+ this.callback.called.should.equal(true)
+ this.callback
+ .calledWith(
+ sinon.match({
+ message: 'doc updater could not load requested ops',
+ info: { statusCode },
+ })
+ )
+ .should.equal(true)
+ this.logger.error.called.should.equal(false)
+ this.logger.warn.called.should.equal(false)
+ })
+ })
+ )
+
+ return describe('when the document updater returns a failure error code', function () {
+ beforeEach(function () {
+ this.request.get = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 500 }, '')
+ return this.DocumentUpdaterManager.getDocument(
+ this.project_id,
+ this.doc_id,
+ this.fromVersion,
+ this.callback
+ )
+ })
+
+ return it('should return the callback with an error', function () {
+ this.callback.called.should.equal(true)
+ this.callback
+ .calledWith(
+ sinon.match({
+ message: 'doc updater returned a non-success status code',
+ info: {
+ action: 'getDocument',
+ statusCode: 500,
+ },
+ })
+ )
+ .should.equal(true)
+ this.logger.error.called.should.equal(false)
+ })
+ })
+ })
+
+ describe('flushProjectToMongoAndDelete', function () {
+ beforeEach(function () {
+ return (this.callback = sinon.stub())
+ })
+
+ describe('successfully', function () {
+ beforeEach(function () {
+ this.request.del = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 204 }, '')
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete(
+ this.project_id,
+ this.callback
+ )
+ })
+
+ it('should delete the project from the document updater', function () {
+ const url = `${this.settings.apis.documentupdater.url}/project/${this.project_id}?background=true`
+ return this.request.del.calledWith(url).should.equal(true)
+ })
+
+ return it('should call the callback with no error', function () {
+ return this.callback.calledWith(null).should.equal(true)
+ })
+ })
+
+ describe('when the document updater API returns an error', function () {
+ beforeEach(function () {
+ this.request.del = sinon
+ .stub()
+ .callsArgWith(
+ 1,
+ (this.error = new Error('something went wrong')),
+ null,
+ null
+ )
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete(
+ this.project_id,
+ this.callback
+ )
+ })
+
+ return it('should return an error to the callback', function () {
+ return this.callback.calledWith(this.error).should.equal(true)
+ })
+ })
+
+ return describe('when the document updater returns a failure error code', function () {
+ beforeEach(function () {
+ this.request.del = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 500 }, '')
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete(
+ this.project_id,
+ this.callback
+ )
+ })
+
+ return it('should return the callback with an error', function () {
+ this.callback.called.should.equal(true)
+ this.callback
+ .calledWith(
+ sinon.match({
+ message: 'doc updater returned a non-success status code',
+ info: {
+ action: 'flushProjectToMongoAndDelete',
+ statusCode: 500,
+ },
+ })
+ )
+ .should.equal(true)
+ })
+ })
+ })
+
+ describe('queueChange', function () {
+ beforeEach(function () {
+ this.change = {
+ doc: '1234567890',
+ op: [{ d: 'test', p: 345 }],
+ v: 789,
+ }
+ this.rclient.rpush = sinon.stub().yields()
+ return (this.callback = sinon.stub())
+ })
+
+ describe('successfully', function () {
+ beforeEach(function () {
+ this.pendingUpdateListKey = `pending-updates-list-key-${Math.random()}`
+
+ this.DocumentUpdaterManager._getPendingUpdateListKey = sinon
+ .stub()
+ .returns(this.pendingUpdateListKey)
+ this.DocumentUpdaterManager.queueChange(
+ this.project_id,
+ this.doc_id,
+ this.change,
+ this.callback
+ )
+ })
+
+ it('should push the change', function () {
+ this.rclient.rpush
+ .calledWith(
+ `PendingUpdates:${this.doc_id}`,
+ JSON.stringify(this.change)
+ )
+ .should.equal(true)
+ })
+
+ it('should notify the doc updater of the change via the pending-updates-list queue', function () {
+ this.rclient.rpush
+ .calledWith(
+ this.pendingUpdateListKey,
+ `${this.project_id}:${this.doc_id}`
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('with error talking to redis during rpush', function () {
+ beforeEach(function () {
+ this.rclient.rpush = sinon
+ .stub()
+ .yields(new Error('something went wrong'))
+ return this.DocumentUpdaterManager.queueChange(
+ this.project_id,
+ this.doc_id,
+ this.change,
+ this.callback
+ )
+ })
+
+ return it('should return an error', function () {
+ return this.callback
+ .calledWithExactly(sinon.match(Error))
+ .should.equal(true)
+ })
+ })
+
+ describe('with null byte corruption', function () {
+ beforeEach(function () {
+ this.stringifyStub = sinon
+ .stub(JSON, 'stringify')
+ .callsFake(() => '["bad bytes! \u0000 <- here"]')
+ return this.DocumentUpdaterManager.queueChange(
+ this.project_id,
+ this.doc_id,
+ this.change,
+ this.callback
+ )
+ })
+
+ afterEach(function () {
+ this.stringifyStub.restore()
+ })
+
+ it('should return an error', function () {
+ return this.callback
+ .calledWithExactly(sinon.match(Error))
+ .should.equal(true)
+ })
+
+ return it('should not push the change onto the pending-updates-list queue', function () {
+ return this.rclient.rpush.called.should.equal(false)
+ })
+ })
+
+ describe('when the update is too large', function () {
+ beforeEach(function () {
+ this.change = {
+ op: { p: 12, t: 'update is too large'.repeat(1024 * 400) },
+ }
+ return this.DocumentUpdaterManager.queueChange(
+ this.project_id,
+ this.doc_id,
+ this.change,
+ this.callback
+ )
+ })
+
+ it('should return an error', function () {
+ return this.callback
+ .calledWithExactly(sinon.match(Error))
+ .should.equal(true)
+ })
+
+ it('should add the size to the error', function () {
+ return this.callback.args[0][0].info.updateSize.should.equal(7782422)
+ })
+
+ return it('should not push the change onto the pending-updates-list queue', function () {
+ return this.rclient.rpush.called.should.equal(false)
+ })
+ })
+
+ describe('with invalid keys', function () {
+ beforeEach(function () {
+ this.change = {
+ op: [{ d: 'test', p: 345 }],
+ version: 789, // not a valid key
+ }
+ return this.DocumentUpdaterManager.queueChange(
+ this.project_id,
+ this.doc_id,
+ this.change,
+ this.callback
+ )
+ })
+
+ it('should remove the invalid keys from the change', function () {
+ return this.rclient.rpush
+ .calledWith(
+ `PendingUpdates:${this.doc_id}`,
+ JSON.stringify({ op: this.change.op })
+ )
+ .should.equal(true)
+ })
+ })
+ })
+
+ describe('_getPendingUpdateListKey', function () {
+ beforeEach(function () {
+ const keys = _.times(
+ 10000,
+ this.DocumentUpdaterManager._getPendingUpdateListKey
+ )
+ this.keys = _.unique(keys)
+ })
+ it('should return normal pending updates key', function () {
+ _.contains(this.keys, 'pending-updates-list').should.equal(true)
+ })
+
+ it('should return pending-updates-list-n keys', function () {
+ _.contains(this.keys, 'pending-updates-list-1').should.equal(true)
+ _.contains(this.keys, 'pending-updates-list-3').should.equal(true)
+ _.contains(this.keys, 'pending-updates-list-9').should.equal(true)
+ })
+
+ it('should not include pending-updates-list-0 key', function () {
+ _.contains(this.keys, 'pending-updates-list-0').should.equal(false)
+ })
+
+ it('should not include maximum as pendingUpdateListShardCount value', function () {
+ _.contains(this.keys, 'pending-updates-list-10').should.equal(false)
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/DrainManagerTests.js b/services/real-time/test/unit/js/DrainManagerTests.js
new file mode 100644
index 0000000000..3075c647c7
--- /dev/null
+++ b/services/real-time/test/unit/js/DrainManagerTests.js
@@ -0,0 +1,127 @@
+/* eslint-disable
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const sinon = require('sinon')
+const SandboxedModule = require('sandboxed-module')
+const path = require('path')
+const modulePath = path.join(__dirname, '../../../app/js/DrainManager')
+
+describe('DrainManager', function () {
+ beforeEach(function () {
+ this.DrainManager = SandboxedModule.require(modulePath, {})
+ return (this.io = {
+ sockets: {
+ clients: sinon.stub(),
+ },
+ })
+ })
+
+ describe('startDrainTimeWindow', function () {
+ beforeEach(function () {
+ this.clients = []
+ for (let i = 0; i <= 5399; i++) {
+ this.clients[i] = {
+ id: i,
+ emit: sinon.stub(),
+ }
+ }
+ this.io.sockets.clients.returns(this.clients)
+ return (this.DrainManager.startDrain = sinon.stub())
+ })
+
+ return it('should set a drain rate fast enough', function (done) {
+ this.DrainManager.startDrainTimeWindow(this.io, 9)
+ this.DrainManager.startDrain.calledWith(this.io, 10).should.equal(true)
+ return done()
+ })
+ })
+
+ return describe('reconnectNClients', function () {
+ beforeEach(function () {
+ this.clients = []
+ for (let i = 0; i <= 9; i++) {
+ this.clients[i] = {
+ id: i,
+ emit: sinon.stub(),
+ }
+ }
+ return this.io.sockets.clients.returns(this.clients)
+ })
+
+ return describe('after first pass', function () {
+ beforeEach(function () {
+ return this.DrainManager.reconnectNClients(this.io, 3)
+ })
+
+ it('should reconnect the first 3 clients', function () {
+ return [0, 1, 2].map(i =>
+ this.clients[i].emit
+ .calledWith('reconnectGracefully')
+ .should.equal(true)
+ )
+ })
+
+ it('should not reconnect any more clients', function () {
+ return [3, 4, 5, 6, 7, 8, 9].map(i =>
+ this.clients[i].emit
+ .calledWith('reconnectGracefully')
+ .should.equal(false)
+ )
+ })
+
+ return describe('after second pass', function () {
+ beforeEach(function () {
+ return this.DrainManager.reconnectNClients(this.io, 3)
+ })
+
+ it('should reconnect the next 3 clients', function () {
+ return [3, 4, 5].map(i =>
+ this.clients[i].emit
+ .calledWith('reconnectGracefully')
+ .should.equal(true)
+ )
+ })
+
+ it('should not reconnect any more clients', function () {
+ return [6, 7, 8, 9].map(i =>
+ this.clients[i].emit
+ .calledWith('reconnectGracefully')
+ .should.equal(false)
+ )
+ })
+
+ it('should not reconnect the first 3 clients again', function () {
+ return [0, 1, 2].map(i =>
+ this.clients[i].emit.calledOnce.should.equal(true)
+ )
+ })
+
+ return describe('after final pass', function () {
+ beforeEach(function () {
+ return this.DrainManager.reconnectNClients(this.io, 100)
+ })
+
+ it('should not reconnect the first 6 clients again', function () {
+ return [0, 1, 2, 3, 4, 5].map(i =>
+ this.clients[i].emit.calledOnce.should.equal(true)
+ )
+ })
+
+ return it('should log out that it reached the end', function () {
+ return this.logger.log
+ .calledWith('All clients have been told to reconnectGracefully')
+ .should.equal(true)
+ })
+ })
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/EventLoggerTests.js b/services/real-time/test/unit/js/EventLoggerTests.js
new file mode 100644
index 0000000000..037f2e214a
--- /dev/null
+++ b/services/real-time/test/unit/js/EventLoggerTests.js
@@ -0,0 +1,153 @@
+/* eslint-disable
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const SandboxedModule = require('sandboxed-module')
+const modulePath = '../../../app/js/EventLogger'
+const sinon = require('sinon')
+const tk = require('timekeeper')
+
+describe('EventLogger', function () {
+ beforeEach(function () {
+ this.start = Date.now()
+ tk.freeze(new Date(this.start))
+ this.EventLogger = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/metrics': (this.metrics = { inc: sinon.stub() }),
+ },
+ })
+ this.channel = 'applied-ops'
+ this.id_1 = 'random-hostname:abc-1'
+ this.message_1 = 'message-1'
+ this.id_2 = 'random-hostname:abc-2'
+ return (this.message_2 = 'message-2')
+ })
+
+ afterEach(function () {
+ return tk.reset()
+ })
+
+ return describe('checkEventOrder', function () {
+ describe('when the events are in order', function () {
+ beforeEach(function () {
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ return (this.status = this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_2,
+ this.message_2
+ ))
+ })
+
+ it('should accept events in order', function () {
+ return expect(this.status).to.be.undefined
+ })
+
+ return it('should increment the valid event metric', function () {
+ return this.metrics.inc
+ .calledWith(`event.${this.channel}.valid`)
+ .should.equals(true)
+ })
+ })
+
+ describe('when there is a duplicate events', function () {
+ beforeEach(function () {
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ return (this.status = this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ ))
+ })
+
+ it('should return "duplicate" for the same event', function () {
+ return expect(this.status).to.equal('duplicate')
+ })
+
+ return it('should increment the duplicate event metric', function () {
+ return this.metrics.inc
+ .calledWith(`event.${this.channel}.duplicate`)
+ .should.equals(true)
+ })
+ })
+
+ describe('when there are out of order events', function () {
+ beforeEach(function () {
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_2,
+ this.message_2
+ )
+ return (this.status = this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ ))
+ })
+
+ it('should return "out-of-order" for the event', function () {
+ return expect(this.status).to.equal('out-of-order')
+ })
+
+ return it('should increment the out-of-order event metric', function () {
+ return this.metrics.inc
+ .calledWith(`event.${this.channel}.out-of-order`)
+ .should.equals(true)
+ })
+ })
+
+ return describe('after MAX_STALE_TIME_IN_MS', function () {
+ return it('should flush old entries', function () {
+ let status
+ this.EventLogger.MAX_EVENTS_BEFORE_CLEAN = 10
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ for (let i = 1; i <= 8; i++) {
+ status = this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ expect(status).to.equal('duplicate')
+ }
+ // the next event should flush the old entries aboce
+ this.EventLogger.MAX_STALE_TIME_IN_MS = 1000
+ tk.freeze(new Date(this.start + 5 * 1000))
+ // because we flushed the entries this should not be a duplicate
+ this.EventLogger.checkEventOrder(
+ this.channel,
+ 'other-1',
+ this.message_2
+ )
+ status = this.EventLogger.checkEventOrder(
+ this.channel,
+ this.id_1,
+ this.message_1
+ )
+ return expect(status).to.be.undefined
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/RoomManagerTests.js b/services/real-time/test/unit/js/RoomManagerTests.js
new file mode 100644
index 0000000000..f33d2ecce2
--- /dev/null
+++ b/services/real-time/test/unit/js/RoomManagerTests.js
@@ -0,0 +1,412 @@
+/* eslint-disable
+ no-return-assign,
+ no-unused-vars,
+ promise/param-names,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const sinon = require('sinon')
+const modulePath = '../../../app/js/RoomManager.js'
+const SandboxedModule = require('sandboxed-module')
+
+describe('RoomManager', function () {
+ beforeEach(function () {
+ this.project_id = 'project-id-123'
+ this.doc_id = 'doc-id-456'
+ this.other_doc_id = 'doc-id-789'
+ this.client = { namespace: { name: '' }, id: 'first-client' }
+ this.RoomManager = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': (this.settings = {}),
+ '@overleaf/metrics': (this.metrics = { gauge: sinon.stub() }),
+ },
+ })
+ this.RoomManager._clientsInRoom = sinon.stub()
+ this.RoomManager._clientAlreadyInRoom = sinon.stub()
+ this.RoomEvents = this.RoomManager.eventSource()
+ sinon.spy(this.RoomEvents, 'emit')
+ return sinon.spy(this.RoomEvents, 'once')
+ })
+
+ describe('emitOnCompletion', function () {
+ return describe('when a subscribe errors', function () {
+ afterEach(function () {
+ return process.removeListener('unhandledRejection', this.onUnhandled)
+ })
+
+ beforeEach(function (done) {
+ this.onUnhandled = error => {
+ this.unhandledError = error
+ return done(new Error(`unhandledRejection: ${error.message}`))
+ }
+ process.on('unhandledRejection', this.onUnhandled)
+
+ let reject
+ const subscribePromise = new Promise((_, r) => (reject = r))
+ const promises = [subscribePromise]
+ const eventName = 'project-subscribed-123'
+ this.RoomEvents.once(eventName, () => setTimeout(done, 100))
+ this.RoomManager.emitOnCompletion(promises, eventName)
+ return setTimeout(() => reject(new Error('subscribe failed')))
+ })
+
+ return it('should keep going', function () {
+ return expect(this.unhandledError).to.not.exist
+ })
+ })
+ })
+
+ describe('joinProject', function () {
+ describe('when the project room is empty', function () {
+ beforeEach(function (done) {
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.project_id)
+ .onFirstCall()
+ .returns(0)
+ this.client.join = sinon.stub()
+ this.callback = sinon.stub()
+ this.RoomEvents.on('project-active', id => {
+ return setTimeout(() => {
+ return this.RoomEvents.emit(`project-subscribed-${id}`)
+ }, 100)
+ })
+ return this.RoomManager.joinProject(
+ this.client,
+ this.project_id,
+ err => {
+ this.callback(err)
+ return done()
+ }
+ )
+ })
+
+ it("should emit a 'project-active' event with the id", function () {
+ return this.RoomEvents.emit
+ .calledWithExactly('project-active', this.project_id)
+ .should.equal(true)
+ })
+
+ it("should listen for the 'project-subscribed-id' event", function () {
+ return this.RoomEvents.once
+ .calledWith(`project-subscribed-${this.project_id}`)
+ .should.equal(true)
+ })
+
+ return it('should join the room using the id', function () {
+ return this.client.join
+ .calledWithExactly(this.project_id)
+ .should.equal(true)
+ })
+ })
+
+ return describe('when there are other clients in the project room', function () {
+ beforeEach(function (done) {
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.project_id)
+ .onFirstCall()
+ .returns(123)
+ .onSecondCall()
+ .returns(124)
+ this.client.join = sinon.stub()
+ this.RoomManager.joinProject(this.client, this.project_id, done)
+ })
+
+ it('should join the room using the id', function () {
+ return this.client.join.called.should.equal(true)
+ })
+
+ return it('should not emit any events', function () {
+ return this.RoomEvents.emit.called.should.equal(false)
+ })
+ })
+ })
+
+ describe('joinDoc', function () {
+ describe('when the doc room is empty', function () {
+ beforeEach(function (done) {
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onFirstCall()
+ .returns(0)
+ this.client.join = sinon.stub()
+ this.callback = sinon.stub()
+ this.RoomEvents.on('doc-active', id => {
+ return setTimeout(() => {
+ return this.RoomEvents.emit(`doc-subscribed-${id}`)
+ }, 100)
+ })
+ return this.RoomManager.joinDoc(this.client, this.doc_id, err => {
+ this.callback(err)
+ return done()
+ })
+ })
+
+ it("should emit a 'doc-active' event with the id", function () {
+ return this.RoomEvents.emit
+ .calledWithExactly('doc-active', this.doc_id)
+ .should.equal(true)
+ })
+
+ it("should listen for the 'doc-subscribed-id' event", function () {
+ return this.RoomEvents.once
+ .calledWith(`doc-subscribed-${this.doc_id}`)
+ .should.equal(true)
+ })
+
+ return it('should join the room using the id', function () {
+ return this.client.join
+ .calledWithExactly(this.doc_id)
+ .should.equal(true)
+ })
+ })
+
+ return describe('when there are other clients in the doc room', function () {
+ beforeEach(function (done) {
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onFirstCall()
+ .returns(123)
+ .onSecondCall()
+ .returns(124)
+ this.client.join = sinon.stub()
+ this.RoomManager.joinDoc(this.client, this.doc_id, done)
+ })
+
+ it('should join the room using the id', function () {
+ return this.client.join.called.should.equal(true)
+ })
+
+ return it('should not emit any events', function () {
+ return this.RoomEvents.emit.called.should.equal(false)
+ })
+ })
+ })
+
+ describe('leaveDoc', function () {
+ describe('when doc room will be empty after this client has left', function () {
+ beforeEach(function () {
+ this.RoomManager._clientAlreadyInRoom
+ .withArgs(this.client, this.doc_id)
+ .returns(true)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onCall(0)
+ .returns(0)
+ this.client.leave = sinon.stub()
+ return this.RoomManager.leaveDoc(this.client, this.doc_id)
+ })
+
+ it('should leave the room using the id', function () {
+ return this.client.leave
+ .calledWithExactly(this.doc_id)
+ .should.equal(true)
+ })
+
+ return it("should emit a 'doc-empty' event with the id", function () {
+ return this.RoomEvents.emit
+ .calledWithExactly('doc-empty', this.doc_id)
+ .should.equal(true)
+ })
+ })
+
+ describe('when there are other clients in the doc room', function () {
+ beforeEach(function () {
+ this.RoomManager._clientAlreadyInRoom
+ .withArgs(this.client, this.doc_id)
+ .returns(true)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onCall(0)
+ .returns(123)
+ this.client.leave = sinon.stub()
+ return this.RoomManager.leaveDoc(this.client, this.doc_id)
+ })
+
+ it('should leave the room using the id', function () {
+ return this.client.leave
+ .calledWithExactly(this.doc_id)
+ .should.equal(true)
+ })
+
+ return it('should not emit any events', function () {
+ return this.RoomEvents.emit.called.should.equal(false)
+ })
+ })
+
+ return describe('when the client is not in the doc room', function () {
+ beforeEach(function () {
+ this.RoomManager._clientAlreadyInRoom
+ .withArgs(this.client, this.doc_id)
+ .returns(false)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onCall(0)
+ .returns(0)
+ this.client.leave = sinon.stub()
+ return this.RoomManager.leaveDoc(this.client, this.doc_id)
+ })
+
+ it('should not leave the room', function () {
+ return this.client.leave.called.should.equal(false)
+ })
+
+ return it('should not emit any events', function () {
+ return this.RoomEvents.emit.called.should.equal(false)
+ })
+ })
+ })
+
+ return describe('leaveProjectAndDocs', function () {
+ return describe('when the client is connected to the project and multiple docs', function () {
+ beforeEach(function () {
+ this.RoomManager._roomsClientIsIn = sinon
+ .stub()
+ .returns([this.project_id, this.doc_id, this.other_doc_id])
+ this.client.join = sinon.stub()
+ return (this.client.leave = sinon.stub())
+ })
+
+ describe('when this is the only client connected', function () {
+ beforeEach(function (done) {
+ // first call is for the join,
+ // second for the leave
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onCall(0)
+ .returns(0)
+ .onCall(1)
+ .returns(0)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.other_doc_id)
+ .onCall(0)
+ .returns(0)
+ .onCall(1)
+ .returns(0)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.project_id)
+ .onCall(0)
+ .returns(0)
+ .onCall(1)
+ .returns(0)
+ this.RoomManager._clientAlreadyInRoom
+ .withArgs(this.client, this.doc_id)
+ .returns(true)
+ .withArgs(this.client, this.other_doc_id)
+ .returns(true)
+ .withArgs(this.client, this.project_id)
+ .returns(true)
+ this.RoomEvents.on('project-active', id => {
+ return setTimeout(() => {
+ return this.RoomEvents.emit(`project-subscribed-${id}`)
+ }, 100)
+ })
+ this.RoomEvents.on('doc-active', id => {
+ return setTimeout(() => {
+ return this.RoomEvents.emit(`doc-subscribed-${id}`)
+ }, 100)
+ })
+ // put the client in the rooms
+ return this.RoomManager.joinProject(
+ this.client,
+ this.project_id,
+ () => {
+ return this.RoomManager.joinDoc(this.client, this.doc_id, () => {
+ return this.RoomManager.joinDoc(
+ this.client,
+ this.other_doc_id,
+ () => {
+ // now leave the project
+ this.RoomManager.leaveProjectAndDocs(this.client)
+ return done()
+ }
+ )
+ })
+ }
+ )
+ })
+
+ it('should leave all the docs', function () {
+ this.client.leave.calledWithExactly(this.doc_id).should.equal(true)
+ return this.client.leave
+ .calledWithExactly(this.other_doc_id)
+ .should.equal(true)
+ })
+
+ it('should leave the project', function () {
+ return this.client.leave
+ .calledWithExactly(this.project_id)
+ .should.equal(true)
+ })
+
+ it("should emit a 'doc-empty' event with the id for each doc", function () {
+ this.RoomEvents.emit
+ .calledWithExactly('doc-empty', this.doc_id)
+ .should.equal(true)
+ return this.RoomEvents.emit
+ .calledWithExactly('doc-empty', this.other_doc_id)
+ .should.equal(true)
+ })
+
+ return it("should emit a 'project-empty' event with the id for the project", function () {
+ return this.RoomEvents.emit
+ .calledWithExactly('project-empty', this.project_id)
+ .should.equal(true)
+ })
+ })
+
+ return describe('when other clients are still connected', function () {
+ beforeEach(function () {
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.doc_id)
+ .onFirstCall()
+ .returns(123)
+ .onSecondCall()
+ .returns(122)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.other_doc_id)
+ .onFirstCall()
+ .returns(123)
+ .onSecondCall()
+ .returns(122)
+ this.RoomManager._clientsInRoom
+ .withArgs(this.client, this.project_id)
+ .onFirstCall()
+ .returns(123)
+ .onSecondCall()
+ .returns(122)
+ this.RoomManager._clientAlreadyInRoom
+ .withArgs(this.client, this.doc_id)
+ .returns(true)
+ .withArgs(this.client, this.other_doc_id)
+ .returns(true)
+ .withArgs(this.client, this.project_id)
+ .returns(true)
+ return this.RoomManager.leaveProjectAndDocs(this.client)
+ })
+
+ it('should leave all the docs', function () {
+ this.client.leave.calledWithExactly(this.doc_id).should.equal(true)
+ return this.client.leave
+ .calledWithExactly(this.other_doc_id)
+ .should.equal(true)
+ })
+
+ it('should leave the project', function () {
+ return this.client.leave
+ .calledWithExactly(this.project_id)
+ .should.equal(true)
+ })
+
+ return it('should not emit any events', function () {
+ return this.RoomEvents.emit.called.should.equal(false)
+ })
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/SafeJsonParseTest.js b/services/real-time/test/unit/js/SafeJsonParseTest.js
new file mode 100644
index 0000000000..dbdb4a41d2
--- /dev/null
+++ b/services/real-time/test/unit/js/SafeJsonParseTest.js
@@ -0,0 +1,56 @@
+/* eslint-disable
+ camelcase,
+ handle-callback-err,
+ no-return-assign,
+ no-useless-escape,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { expect } = require('chai')
+const SandboxedModule = require('sandboxed-module')
+const modulePath = '../../../app/js/SafeJsonParse'
+
+describe('SafeJsonParse', function () {
+ beforeEach(function () {
+ return (this.SafeJsonParse = SandboxedModule.require(modulePath, {
+ requires: {
+ '@overleaf/settings': (this.Settings = {
+ maxUpdateSize: 16 * 1024,
+ }),
+ },
+ }))
+ })
+
+ return describe('parse', function () {
+ it('should parse documents correctly', function (done) {
+ return this.SafeJsonParse.parse('{"foo": "bar"}', (error, parsed) => {
+ expect(parsed).to.deep.equal({ foo: 'bar' })
+ return done()
+ })
+ })
+
+ it('should return an error on bad data', function (done) {
+ return this.SafeJsonParse.parse('blah', (error, parsed) => {
+ expect(error).to.exist
+ return done()
+ })
+ })
+
+ return it('should return an error on oversized data', function (done) {
+ // we have a 2k overhead on top of max size
+ const big_blob = Array(16 * 1024).join('A')
+ const data = `{\"foo\": \"${big_blob}\"}`
+ this.Settings.maxUpdateSize = 2 * 1024
+ return this.SafeJsonParse.parse(data, (error, parsed) => {
+ this.logger.error.called.should.equal(false)
+ expect(error).to.exist
+ return done()
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/SessionSocketsTests.js b/services/real-time/test/unit/js/SessionSocketsTests.js
new file mode 100644
index 0000000000..b6f6c87fb9
--- /dev/null
+++ b/services/real-time/test/unit/js/SessionSocketsTests.js
@@ -0,0 +1,197 @@
+/* eslint-disable
+ handle-callback-err,
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const { EventEmitter } = require('events')
+const { expect } = require('chai')
+const SandboxedModule = require('sandboxed-module')
+const modulePath = '../../../app/js/SessionSockets'
+const sinon = require('sinon')
+
+describe('SessionSockets', function () {
+ before(function () {
+ this.SessionSocketsModule = SandboxedModule.require(modulePath)
+ this.io = new EventEmitter()
+ this.id1 = Math.random().toString()
+ this.id2 = Math.random().toString()
+ const redisResponses = {
+ error: [new Error('Redis: something went wrong'), null],
+ unknownId: [null, null],
+ }
+ redisResponses[this.id1] = [null, { user: { _id: '123' } }]
+ redisResponses[this.id2] = [null, { user: { _id: 'abc' } }]
+
+ this.sessionStore = {
+ get: sinon
+ .stub()
+ .callsFake((id, fn) => fn.apply(null, redisResponses[id])),
+ }
+ this.cookieParser = function (req, res, next) {
+ req.signedCookies = req._signedCookies
+ return next()
+ }
+ this.SessionSockets = this.SessionSocketsModule(
+ this.io,
+ this.sessionStore,
+ this.cookieParser,
+ 'ol.sid'
+ )
+ return (this.checkSocket = (socket, fn) => {
+ this.SessionSockets.once('connection', fn)
+ return this.io.emit('connection', socket)
+ })
+ })
+
+ describe('without cookies', function () {
+ before(function () {
+ return (this.socket = { handshake: {} })
+ })
+
+ it('should return a lookup error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('could not look up session by key')
+ return done()
+ })
+ })
+
+ return it('should not query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(false)
+ return done()
+ })
+ })
+ })
+
+ describe('with a different cookie', function () {
+ before(function () {
+ return (this.socket = { handshake: { _signedCookies: { other: 1 } } })
+ })
+
+ it('should return a lookup error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('could not look up session by key')
+ return done()
+ })
+ })
+
+ return it('should not query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(false)
+ return done()
+ })
+ })
+ })
+
+ describe('with a valid cookie and a failing session lookup', function () {
+ before(function () {
+ return (this.socket = {
+ handshake: { _signedCookies: { 'ol.sid': 'error' } },
+ })
+ })
+
+ it('should query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(true)
+ return done()
+ })
+ })
+
+ return it('should return a redis error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('Redis: something went wrong')
+ return done()
+ })
+ })
+ })
+
+ describe('with a valid cookie and no matching session', function () {
+ before(function () {
+ return (this.socket = {
+ handshake: { _signedCookies: { 'ol.sid': 'unknownId' } },
+ })
+ })
+
+ it('should query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(true)
+ return done()
+ })
+ })
+
+ return it('should return a lookup error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.exist
+ expect(error.message).to.equal('could not look up session by key')
+ return done()
+ })
+ })
+ })
+
+ describe('with a valid cookie and a matching session', function () {
+ before(function () {
+ return (this.socket = {
+ handshake: { _signedCookies: { 'ol.sid': this.id1 } },
+ })
+ })
+
+ it('should query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(true)
+ return done()
+ })
+ })
+
+ it('should not return an error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.not.exist
+ return done()
+ })
+ })
+
+ return it('should return the session', function (done) {
+ return this.checkSocket(this.socket, (error, s, session) => {
+ expect(session).to.deep.equal({ user: { _id: '123' } })
+ return done()
+ })
+ })
+ })
+
+ return describe('with a different valid cookie and matching session', function () {
+ before(function () {
+ return (this.socket = {
+ handshake: { _signedCookies: { 'ol.sid': this.id2 } },
+ })
+ })
+
+ it('should query redis', function (done) {
+ return this.checkSocket(this.socket, () => {
+ expect(this.sessionStore.get.called).to.equal(true)
+ return done()
+ })
+ })
+
+ it('should not return an error', function (done) {
+ return this.checkSocket(this.socket, error => {
+ expect(error).to.not.exist
+ return done()
+ })
+ })
+
+ return it('should return the other session', function (done) {
+ return this.checkSocket(this.socket, (error, s, session) => {
+ expect(session).to.deep.equal({ user: { _id: 'abc' } })
+ return done()
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/WebApiManagerTests.js b/services/real-time/test/unit/js/WebApiManagerTests.js
new file mode 100644
index 0000000000..922e15a8f8
--- /dev/null
+++ b/services/real-time/test/unit/js/WebApiManagerTests.js
@@ -0,0 +1,208 @@
+/* eslint-disable
+ no-return-assign,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const sinon = require('sinon')
+const modulePath = '../../../app/js/WebApiManager.js'
+const SandboxedModule = require('sandboxed-module')
+const { CodedError } = require('../../../app/js/Errors')
+
+describe('WebApiManager', function () {
+ beforeEach(function () {
+ this.project_id = 'project-id-123'
+ this.user_id = 'user-id-123'
+ this.user = { _id: this.user_id }
+ this.callback = sinon.stub()
+ return (this.WebApiManager = SandboxedModule.require(modulePath, {
+ requires: {
+ request: (this.request = {}),
+ '@overleaf/settings': (this.settings = {
+ apis: {
+ web: {
+ url: 'http://web.example.com',
+ user: 'username',
+ pass: 'password',
+ },
+ },
+ }),
+ },
+ }))
+ })
+
+ return describe('joinProject', function () {
+ describe('successfully', function () {
+ beforeEach(function () {
+ this.response = {
+ project: { name: 'Test project' },
+ privilegeLevel: 'owner',
+ isRestrictedUser: true,
+ }
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 200 }, this.response)
+ return this.WebApiManager.joinProject(
+ this.project_id,
+ this.user,
+ this.callback
+ )
+ })
+
+ it('should send a request to web to join the project', function () {
+ return this.request.post
+ .calledWith({
+ url: `${this.settings.apis.web.url}/project/${this.project_id}/join`,
+ qs: {
+ user_id: this.user_id,
+ },
+ auth: {
+ user: this.settings.apis.web.user,
+ pass: this.settings.apis.web.pass,
+ sendImmediately: true,
+ },
+ json: true,
+ jar: false,
+ headers: {},
+ })
+ .should.equal(true)
+ })
+
+ return it('should return the project, privilegeLevel, and restricted flag', function () {
+ return this.callback
+ .calledWith(
+ null,
+ this.response.project,
+ this.response.privilegeLevel,
+ this.response.isRestrictedUser
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('when web replies with a 403', function () {
+ beforeEach(function () {
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 403 }, null)
+ this.WebApiManager.joinProject(
+ this.project_id,
+ this.user_id,
+ this.callback
+ )
+ })
+
+ it('should call the callback with an error', function () {
+ this.callback
+ .calledWith(
+ sinon.match({
+ message: 'not authorized',
+ })
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('when web replies with a 404', function () {
+ beforeEach(function () {
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 404 }, null)
+ this.WebApiManager.joinProject(
+ this.project_id,
+ this.user_id,
+ this.callback
+ )
+ })
+
+ it('should call the callback with an error', function () {
+ this.callback
+ .calledWith(
+ sinon.match({
+ message: 'project not found',
+ info: { code: 'ProjectNotFound' },
+ })
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('with an error from web', function () {
+ beforeEach(function () {
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 500 }, null)
+ return this.WebApiManager.joinProject(
+ this.project_id,
+ this.user_id,
+ this.callback
+ )
+ })
+
+ return it('should call the callback with an error', function () {
+ return this.callback
+ .calledWith(
+ sinon.match({
+ message: 'non-success status code from web',
+ info: { statusCode: 500 },
+ })
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('with no data from web', function () {
+ beforeEach(function () {
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 200 }, null)
+ return this.WebApiManager.joinProject(
+ this.project_id,
+ this.user_id,
+ this.callback
+ )
+ })
+
+ return it('should call the callback with an error', function () {
+ return this.callback
+ .calledWith(
+ sinon.match({
+ message: 'no data returned from joinProject request',
+ })
+ )
+ .should.equal(true)
+ })
+ })
+
+ return describe('when the project is over its rate limit', function () {
+ beforeEach(function () {
+ this.request.post = sinon
+ .stub()
+ .callsArgWith(1, null, { statusCode: 429 }, null)
+ return this.WebApiManager.joinProject(
+ this.project_id,
+ this.user_id,
+ this.callback
+ )
+ })
+
+ return it('should call the callback with a TooManyRequests error code', function () {
+ return this.callback
+ .calledWith(
+ sinon.match({
+ message: 'rate-limit hit when joining project',
+ info: {
+ code: 'TooManyRequests',
+ },
+ })
+ )
+ .should.equal(true)
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/WebsocketControllerTests.js b/services/real-time/test/unit/js/WebsocketControllerTests.js
new file mode 100644
index 0000000000..8b7c60aed6
--- /dev/null
+++ b/services/real-time/test/unit/js/WebsocketControllerTests.js
@@ -0,0 +1,1662 @@
+/* eslint-disable
+ camelcase,
+ no-return-assign,
+ no-throw-literal,
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const sinon = require('sinon')
+const { expect } = require('chai')
+const modulePath = '../../../app/js/WebsocketController.js'
+const SandboxedModule = require('sandboxed-module')
+const tk = require('timekeeper')
+const { UpdateTooLargeError } = require('../../../app/js/Errors')
+
+describe('WebsocketController', function () {
+ beforeEach(function () {
+ tk.freeze(new Date())
+ this.project_id = 'project-id-123'
+ this.user = {
+ _id: (this.user_id = 'user-id-123'),
+ first_name: 'James',
+ last_name: 'Allen',
+ email: 'james@example.com',
+ signUpDate: new Date('2014-01-01'),
+ loginCount: 42,
+ }
+ this.callback = sinon.stub()
+ this.client = {
+ disconnected: false,
+ id: (this.client_id = 'mock-client-id-123'),
+ publicId: `other-id-${Math.random()}`,
+ ol_context: {},
+ joinLeaveEpoch: 0,
+ join: sinon.stub(),
+ leave: sinon.stub(),
+ }
+ return (this.WebsocketController = SandboxedModule.require(modulePath, {
+ requires: {
+ './WebApiManager': (this.WebApiManager = {}),
+ './AuthorizationManager': (this.AuthorizationManager = {}),
+ './DocumentUpdaterManager': (this.DocumentUpdaterManager = {}),
+ './ConnectedUsersManager': (this.ConnectedUsersManager = {}),
+ './WebsocketLoadBalancer': (this.WebsocketLoadBalancer = {}),
+ '@overleaf/metrics': (this.metrics = {
+ inc: sinon.stub(),
+ set: sinon.stub(),
+ }),
+ './RoomManager': (this.RoomManager = {}),
+ },
+ }))
+ })
+
+ afterEach(function () {
+ return tk.reset()
+ })
+
+ describe('joinProject', function () {
+ describe('when authorised', function () {
+ beforeEach(function () {
+ this.client.id = 'mock-client-id'
+ this.project = {
+ name: 'Test Project',
+ owner: {
+ _id: (this.owner_id = 'mock-owner-id-123'),
+ },
+ }
+ this.privilegeLevel = 'owner'
+ this.ConnectedUsersManager.updateUserPosition = sinon
+ .stub()
+ .callsArgAsync(4)
+ this.isRestrictedUser = true
+ this.WebApiManager.joinProject = sinon
+ .stub()
+ .callsArgWith(
+ 2,
+ null,
+ this.project,
+ this.privilegeLevel,
+ this.isRestrictedUser
+ )
+ this.RoomManager.joinProject = sinon.stub().callsArg(2)
+ return this.WebsocketController.joinProject(
+ this.client,
+ this.user,
+ this.project_id,
+ this.callback
+ )
+ })
+
+ it('should load the project from web', function () {
+ return this.WebApiManager.joinProject
+ .calledWith(this.project_id, this.user)
+ .should.equal(true)
+ })
+
+ it('should join the project room', function () {
+ return this.RoomManager.joinProject
+ .calledWith(this.client, this.project_id)
+ .should.equal(true)
+ })
+
+ it('should set the privilege level on the client', function () {
+ return this.client.ol_context.privilege_level.should.equal(
+ this.privilegeLevel
+ )
+ })
+ it("should set the user's id on the client", function () {
+ return this.client.ol_context.user_id.should.equal(this.user._id)
+ })
+ it("should set the user's email on the client", function () {
+ return this.client.ol_context.email.should.equal(this.user.email)
+ })
+ it("should set the user's first_name on the client", function () {
+ return this.client.ol_context.first_name.should.equal(
+ this.user.first_name
+ )
+ })
+ it("should set the user's last_name on the client", function () {
+ return this.client.ol_context.last_name.should.equal(
+ this.user.last_name
+ )
+ })
+ it("should set the user's sign up date on the client", function () {
+ return this.client.ol_context.signup_date.should.equal(
+ this.user.signUpDate
+ )
+ })
+ it("should set the user's login_count on the client", function () {
+ return this.client.ol_context.login_count.should.equal(
+ this.user.loginCount
+ )
+ })
+ it('should set the connected time on the client', function () {
+ return this.client.ol_context.connected_time.should.equal(new Date())
+ })
+ it('should set the project_id on the client', function () {
+ return this.client.ol_context.project_id.should.equal(this.project_id)
+ })
+ it('should set the project owner id on the client', function () {
+ return this.client.ol_context.owner_id.should.equal(this.owner_id)
+ })
+ it('should set the is_restricted_user flag on the client', function () {
+ return this.client.ol_context.is_restricted_user.should.equal(
+ this.isRestrictedUser
+ )
+ })
+ it('should call the callback with the project, privilegeLevel and protocolVersion', function () {
+ return this.callback
+ .calledWith(
+ null,
+ this.project,
+ this.privilegeLevel,
+ this.WebsocketController.PROTOCOL_VERSION
+ )
+ .should.equal(true)
+ })
+
+ it('should mark the user as connected in ConnectedUsersManager', function () {
+ return this.ConnectedUsersManager.updateUserPosition
+ .calledWith(this.project_id, this.client.publicId, this.user, null)
+ .should.equal(true)
+ })
+
+ return it('should increment the join-project metric', function () {
+ return this.metrics.inc
+ .calledWith('editor.join-project')
+ .should.equal(true)
+ })
+ })
+
+ describe('when not authorized', function () {
+ beforeEach(function () {
+ this.WebApiManager.joinProject = sinon
+ .stub()
+ .callsArgWith(2, null, null, null)
+ return this.WebsocketController.joinProject(
+ this.client,
+ this.user,
+ this.project_id,
+ this.callback
+ )
+ })
+
+ it('should return an error', function () {
+ return this.callback
+ .calledWith(sinon.match({ message: 'not authorized' }))
+ .should.equal(true)
+ })
+
+ return it('should not log an error', function () {
+ return this.logger.error.called.should.equal(false)
+ })
+ })
+
+ describe('when the subscribe failed', function () {
+ beforeEach(function () {
+ this.client.id = 'mock-client-id'
+ this.project = {
+ name: 'Test Project',
+ owner: {
+ _id: (this.owner_id = 'mock-owner-id-123'),
+ },
+ }
+ this.privilegeLevel = 'owner'
+ this.ConnectedUsersManager.updateUserPosition = sinon
+ .stub()
+ .callsArgAsync(4)
+ this.isRestrictedUser = true
+ this.WebApiManager.joinProject = sinon
+ .stub()
+ .callsArgWith(
+ 2,
+ null,
+ this.project,
+ this.privilegeLevel,
+ this.isRestrictedUser
+ )
+ this.RoomManager.joinProject = sinon
+ .stub()
+ .callsArgWith(2, new Error('subscribe failed'))
+ return this.WebsocketController.joinProject(
+ this.client,
+ this.user,
+ this.project_id,
+ this.callback
+ )
+ })
+
+ return it('should return an error', function () {
+ this.callback
+ .calledWith(sinon.match({ message: 'subscribe failed' }))
+ .should.equal(true)
+ return this.callback.args[0][0].message.should.equal('subscribe failed')
+ })
+ })
+
+ describe('when the client has disconnected', function () {
+ beforeEach(function () {
+ this.client.disconnected = true
+ this.WebApiManager.joinProject = sinon.stub().callsArg(2)
+ return this.WebsocketController.joinProject(
+ this.client,
+ this.user,
+ this.project_id,
+ this.callback
+ )
+ })
+
+ it('should not call WebApiManager.joinProject', function () {
+ return expect(this.WebApiManager.joinProject.called).to.equal(false)
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ return it('should increment the editor.join-project.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.join-project.disconnected', 1, {
+ status: 'immediately',
+ })
+ ).to.equal(true)
+ })
+ })
+
+ return describe('when the client disconnects while WebApiManager.joinProject is running', function () {
+ beforeEach(function () {
+ this.WebApiManager.joinProject = (project, user, cb) => {
+ this.client.disconnected = true
+ return cb(
+ null,
+ this.project,
+ this.privilegeLevel,
+ this.isRestrictedUser
+ )
+ }
+
+ return this.WebsocketController.joinProject(
+ this.client,
+ this.user,
+ this.project_id,
+ this.callback
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ return it('should increment the editor.join-project.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.join-project.disconnected', 1, {
+ status: 'after-web-api-call',
+ })
+ ).to.equal(true)
+ })
+ })
+ })
+
+ describe('leaveProject', function () {
+ beforeEach(function () {
+ this.DocumentUpdaterManager.flushProjectToMongoAndDelete = sinon
+ .stub()
+ .callsArg(1)
+ this.ConnectedUsersManager.markUserAsDisconnected = sinon
+ .stub()
+ .callsArg(2)
+ this.WebsocketLoadBalancer.emitToRoom = sinon.stub()
+ this.RoomManager.leaveProjectAndDocs = sinon.stub()
+ this.clientsInRoom = []
+ this.io = {
+ sockets: {
+ clients: room_id => {
+ if (room_id !== this.project_id) {
+ throw 'expected room_id to be project_id'
+ }
+ return this.clientsInRoom
+ },
+ },
+ }
+ this.client.ol_context.project_id = this.project_id
+ this.client.ol_context.user_id = this.user_id
+ this.WebsocketController.FLUSH_IF_EMPTY_DELAY = 0
+ return tk.reset()
+ }) // Allow setTimeout to work.
+
+ describe('when the client did not joined a project yet', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {}
+ return this.WebsocketController.leaveProject(this.io, this.client, done)
+ })
+
+ it('should bail out when calling leaveProject', function () {
+ this.WebsocketLoadBalancer.emitToRoom.called.should.equal(false)
+ this.RoomManager.leaveProjectAndDocs.called.should.equal(false)
+ return this.ConnectedUsersManager.markUserAsDisconnected.called.should.equal(
+ false
+ )
+ })
+
+ return it('should not inc any metric', function () {
+ return this.metrics.inc.called.should.equal(false)
+ })
+ })
+
+ describe('when the project is empty', function () {
+ beforeEach(function (done) {
+ this.clientsInRoom = []
+ return this.WebsocketController.leaveProject(this.io, this.client, done)
+ })
+
+ it('should end clientTracking.clientDisconnected to the project room', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientDisconnected',
+ this.client.publicId
+ )
+ .should.equal(true)
+ })
+
+ it('should mark the user as disconnected', function () {
+ return this.ConnectedUsersManager.markUserAsDisconnected
+ .calledWith(this.project_id, this.client.publicId)
+ .should.equal(true)
+ })
+
+ it('should flush the project in the document updater', function () {
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete
+ .calledWith(this.project_id)
+ .should.equal(true)
+ })
+
+ it('should increment the leave-project metric', function () {
+ return this.metrics.inc
+ .calledWith('editor.leave-project')
+ .should.equal(true)
+ })
+
+ return it('should track the disconnection in RoomManager', function () {
+ return this.RoomManager.leaveProjectAndDocs
+ .calledWith(this.client)
+ .should.equal(true)
+ })
+ })
+
+ describe('when the project is not empty', function () {
+ beforeEach(function (done) {
+ this.clientsInRoom = ['mock-remaining-client']
+ this.io = {
+ sockets: {
+ clients: room_id => {
+ if (room_id !== this.project_id) {
+ throw 'expected room_id to be project_id'
+ }
+ return this.clientsInRoom
+ },
+ },
+ }
+ return this.WebsocketController.leaveProject(this.io, this.client, done)
+ })
+
+ return it('should not flush the project in the document updater', function () {
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete.called.should.equal(
+ false
+ )
+ })
+ })
+
+ describe('when client has not authenticated', function () {
+ beforeEach(function (done) {
+ this.client.ol_context.user_id = null
+ this.client.ol_context.project_id = null
+ return this.WebsocketController.leaveProject(this.io, this.client, done)
+ })
+
+ it('should not end clientTracking.clientDisconnected to the project room', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientDisconnected',
+ this.client.publicId
+ )
+ .should.equal(false)
+ })
+
+ it('should not mark the user as disconnected', function () {
+ return this.ConnectedUsersManager.markUserAsDisconnected
+ .calledWith(this.project_id, this.client.publicId)
+ .should.equal(false)
+ })
+
+ it('should not flush the project in the document updater', function () {
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete
+ .calledWith(this.project_id)
+ .should.equal(false)
+ })
+
+ return it('should not increment the leave-project metric', function () {
+ return this.metrics.inc
+ .calledWith('editor.leave-project')
+ .should.equal(false)
+ })
+ })
+
+ return describe('when client has not joined a project', function () {
+ beforeEach(function (done) {
+ this.client.ol_context.user_id = this.user_id
+ this.client.ol_context.project_id = null
+ return this.WebsocketController.leaveProject(this.io, this.client, done)
+ })
+
+ it('should not end clientTracking.clientDisconnected to the project room', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientDisconnected',
+ this.client.publicId
+ )
+ .should.equal(false)
+ })
+
+ it('should not mark the user as disconnected', function () {
+ return this.ConnectedUsersManager.markUserAsDisconnected
+ .calledWith(this.project_id, this.client.publicId)
+ .should.equal(false)
+ })
+
+ it('should not flush the project in the document updater', function () {
+ return this.DocumentUpdaterManager.flushProjectToMongoAndDelete
+ .calledWith(this.project_id)
+ .should.equal(false)
+ })
+
+ return it('should not increment the leave-project metric', function () {
+ return this.metrics.inc
+ .calledWith('editor.leave-project')
+ .should.equal(false)
+ })
+ })
+ })
+
+ describe('joinDoc', function () {
+ beforeEach(function () {
+ this.doc_id = 'doc-id-123'
+ this.doc_lines = ['doc', 'lines']
+ this.version = 42
+ this.ops = ['mock', 'ops']
+ this.ranges = { mock: 'ranges' }
+ this.options = {}
+
+ this.client.ol_context.project_id = this.project_id
+ this.client.ol_context.is_restricted_user = false
+ this.AuthorizationManager.addAccessToDoc = sinon.stub().yields()
+ this.AuthorizationManager.assertClientCanViewProject = sinon
+ .stub()
+ .callsArgWith(1, null)
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc = sinon
+ .stub()
+ .callsArgWith(2, null)
+ this.DocumentUpdaterManager.getDocument = sinon
+ .stub()
+ .callsArgWith(
+ 3,
+ null,
+ this.doc_lines,
+ this.version,
+ this.ranges,
+ this.ops
+ )
+ return (this.RoomManager.joinDoc = sinon.stub().callsArg(2))
+ })
+
+ describe('works', function () {
+ beforeEach(function () {
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ it('should inc the joinLeaveEpoch', function () {
+ expect(this.client.joinLeaveEpoch).to.equal(1)
+ })
+
+ it('should check that the client is authorized to view the project', function () {
+ return this.AuthorizationManager.assertClientCanViewProject
+ .calledWith(this.client)
+ .should.equal(true)
+ })
+
+ it('should get the document from the DocumentUpdaterManager with fromVersion', function () {
+ return this.DocumentUpdaterManager.getDocument
+ .calledWith(this.project_id, this.doc_id, -1)
+ .should.equal(true)
+ })
+
+ it('should add permissions for the client to access the doc', function () {
+ return this.AuthorizationManager.addAccessToDoc
+ .calledWith(this.client, this.doc_id)
+ .should.equal(true)
+ })
+
+ it('should join the client to room for the doc_id', function () {
+ return this.RoomManager.joinDoc
+ .calledWith(this.client, this.doc_id)
+ .should.equal(true)
+ })
+
+ it('should call the callback with the lines, version, ranges and ops', function () {
+ return this.callback
+ .calledWith(null, this.doc_lines, this.version, this.ops, this.ranges)
+ .should.equal(true)
+ })
+
+ return it('should increment the join-doc metric', function () {
+ return this.metrics.inc.calledWith('editor.join-doc').should.equal(true)
+ })
+ })
+
+ describe('with a fromVersion', function () {
+ beforeEach(function () {
+ this.fromVersion = 40
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ this.fromVersion,
+ this.options,
+ this.callback
+ )
+ })
+
+ return it('should get the document from the DocumentUpdaterManager with fromVersion', function () {
+ return this.DocumentUpdaterManager.getDocument
+ .calledWith(this.project_id, this.doc_id, this.fromVersion)
+ .should.equal(true)
+ })
+ })
+
+ describe('with doclines that need escaping', function () {
+ beforeEach(function () {
+ this.doc_lines.push(['räksmörgås'])
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ return it('should call the callback with the escaped lines', function () {
+ const escaped_lines = this.callback.args[0][1]
+ const escaped_word = escaped_lines.pop()
+ escaped_word.should.equal('räksmörgås')
+ // Check that unescaping works
+ return decodeURIComponent(escape(escaped_word)).should.equal(
+ 'räksmörgås'
+ )
+ })
+ })
+
+ describe('with comments that need encoding', function () {
+ beforeEach(function () {
+ this.ranges.comments = [{ op: { c: 'räksmörgås' } }]
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ { encodeRanges: true },
+ this.callback
+ )
+ })
+
+ return it('should call the callback with the encoded comment', function () {
+ const encoded_comments = this.callback.args[0][4]
+ const encoded_comment = encoded_comments.comments.pop()
+ const encoded_comment_text = encoded_comment.op.c
+ return encoded_comment_text.should.equal('räksmörgås')
+ })
+ })
+
+ describe('with changes that need encoding', function () {
+ it('should call the callback with the encoded insert change', function () {
+ this.ranges.changes = [{ op: { i: 'räksmörgås' } }]
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ { encodeRanges: true },
+ this.callback
+ )
+
+ const encoded_changes = this.callback.args[0][4]
+ const encoded_change = encoded_changes.changes.pop()
+ const encoded_change_text = encoded_change.op.i
+ return encoded_change_text.should.equal('räksmörgås')
+ })
+
+ return it('should call the callback with the encoded delete change', function () {
+ this.ranges.changes = [{ op: { d: 'räksmörgås' } }]
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ { encodeRanges: true },
+ this.callback
+ )
+
+ const encoded_changes = this.callback.args[0][4]
+ const encoded_change = encoded_changes.changes.pop()
+ const encoded_change_text = encoded_change.op.d
+ return encoded_change_text.should.equal('räksmörgås')
+ })
+ })
+
+ describe('when not authorized', function () {
+ beforeEach(function () {
+ this.AuthorizationManager.assertClientCanViewProject = sinon
+ .stub()
+ .callsArgWith(1, (this.err = new Error('not authorized')))
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ it('should call the callback with an error', function () {
+ return this.callback
+ .calledWith(sinon.match({ message: 'not authorized' }))
+ .should.equal(true)
+ })
+
+ return it('should not call the DocumentUpdaterManager', function () {
+ return this.DocumentUpdaterManager.getDocument.called.should.equal(
+ false
+ )
+ })
+ })
+
+ describe('with a restricted client', function () {
+ beforeEach(function () {
+ this.ranges.comments = [{ op: { a: 1 } }, { op: { a: 2 } }]
+ this.client.ol_context.is_restricted_user = true
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ return it('should overwrite ranges.comments with an empty list', function () {
+ const ranges = this.callback.args[0][4]
+ return expect(ranges.comments).to.deep.equal([])
+ })
+ })
+
+ describe('when the client has disconnected', function () {
+ beforeEach(function () {
+ this.client.disconnected = true
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ it('should increment the editor.join-doc.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.join-doc.disconnected', 1, {
+ status: 'immediately',
+ })
+ ).to.equal(true)
+ })
+
+ return it('should not get the document', function () {
+ return expect(this.DocumentUpdaterManager.getDocument.called).to.equal(
+ false
+ )
+ })
+ })
+
+ describe('when the client disconnects while auth checks are running', function () {
+ beforeEach(function (done) {
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(
+ new Error()
+ )
+ this.DocumentUpdaterManager.checkDocument = (
+ project_id,
+ doc_id,
+ cb
+ ) => {
+ this.client.disconnected = true
+ cb()
+ }
+
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ (...args) => {
+ this.callback(...args)
+ done()
+ }
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ expect(this.callback.called).to.equal(true)
+ expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ it('should increment the editor.join-doc.disconnected metric with a status', function () {
+ expect(
+ this.metrics.inc.calledWith('editor.join-doc.disconnected', 1, {
+ status: 'after-client-auth-check',
+ })
+ ).to.equal(true)
+ })
+
+ it('should not get the document', function () {
+ expect(this.DocumentUpdaterManager.getDocument.called).to.equal(false)
+ })
+ })
+
+ describe('when the client starts a parallel joinDoc request', function () {
+ beforeEach(function (done) {
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(
+ new Error()
+ )
+ this.DocumentUpdaterManager.checkDocument = (
+ project_id,
+ doc_id,
+ cb
+ ) => {
+ this.DocumentUpdaterManager.checkDocument = sinon.stub().yields()
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ {},
+ () => {}
+ )
+ cb()
+ }
+
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ (...args) => {
+ this.callback(...args)
+ // make sure the other joinDoc request completed
+ setTimeout(done, 5)
+ }
+ )
+ })
+
+ it('should call the callback with an error', function () {
+ expect(this.callback.called).to.equal(true)
+ expect(this.callback.args[0][0].message).to.equal(
+ 'joinLeaveEpoch mismatch'
+ )
+ })
+
+ it('should get the document once (the parallel request wins)', function () {
+ expect(this.DocumentUpdaterManager.getDocument.callCount).to.equal(1)
+ })
+ })
+
+ describe('when the client starts a parallel leaveDoc request', function () {
+ beforeEach(function (done) {
+ this.RoomManager.leaveDoc = sinon.stub()
+
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(
+ new Error()
+ )
+ this.DocumentUpdaterManager.checkDocument = (
+ project_id,
+ doc_id,
+ cb
+ ) => {
+ this.WebsocketController.leaveDoc(this.client, this.doc_id, () => {})
+ cb()
+ }
+
+ this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ (...args) => {
+ this.callback(...args)
+ done()
+ }
+ )
+ })
+
+ it('should call the callback with an error', function () {
+ expect(this.callback.called).to.equal(true)
+ expect(this.callback.args[0][0].message).to.equal(
+ 'joinLeaveEpoch mismatch'
+ )
+ })
+
+ it('should not get the document', function () {
+ expect(this.DocumentUpdaterManager.getDocument.called).to.equal(false)
+ })
+ })
+
+ describe('when the client disconnects while RoomManager.joinDoc is running', function () {
+ beforeEach(function () {
+ this.RoomManager.joinDoc = (client, doc_id, cb) => {
+ this.client.disconnected = true
+ return cb()
+ }
+
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ it('should increment the editor.join-doc.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.join-doc.disconnected', 1, {
+ status: 'after-joining-room',
+ })
+ ).to.equal(true)
+ })
+
+ return it('should not get the document', function () {
+ return expect(this.DocumentUpdaterManager.getDocument.called).to.equal(
+ false
+ )
+ })
+ })
+
+ return describe('when the client disconnects while DocumentUpdaterManager.getDocument is running', function () {
+ beforeEach(function () {
+ this.DocumentUpdaterManager.getDocument = (
+ project_id,
+ doc_id,
+ fromVersion,
+ callback
+ ) => {
+ this.client.disconnected = true
+ return callback(
+ null,
+ this.doc_lines,
+ this.version,
+ this.ranges,
+ this.ops
+ )
+ }
+
+ return this.WebsocketController.joinDoc(
+ this.client,
+ this.doc_id,
+ -1,
+ this.options,
+ this.callback
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ return it('should increment the editor.join-doc.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.join-doc.disconnected', 1, {
+ status: 'after-doc-updater-call',
+ })
+ ).to.equal(true)
+ })
+ })
+ })
+
+ describe('leaveDoc', function () {
+ beforeEach(function () {
+ this.doc_id = 'doc-id-123'
+ this.client.ol_context.project_id = this.project_id
+ this.RoomManager.leaveDoc = sinon.stub()
+ return this.WebsocketController.leaveDoc(
+ this.client,
+ this.doc_id,
+ this.callback
+ )
+ })
+
+ it('should inc the joinLeaveEpoch', function () {
+ expect(this.client.joinLeaveEpoch).to.equal(1)
+ })
+
+ it('should remove the client from the doc_id room', function () {
+ return this.RoomManager.leaveDoc
+ .calledWith(this.client, this.doc_id)
+ .should.equal(true)
+ })
+
+ it('should call the callback', function () {
+ return this.callback.called.should.equal(true)
+ })
+
+ return it('should increment the leave-doc metric', function () {
+ return this.metrics.inc.calledWith('editor.leave-doc').should.equal(true)
+ })
+ })
+
+ describe('getConnectedUsers', function () {
+ beforeEach(function () {
+ this.client.ol_context.project_id = this.project_id
+ this.users = ['mock', 'users']
+ this.WebsocketLoadBalancer.emitToRoom = sinon.stub()
+ return (this.ConnectedUsersManager.getConnectedUsers = sinon
+ .stub()
+ .callsArgWith(1, null, this.users))
+ })
+
+ describe('when authorized', function () {
+ beforeEach(function (done) {
+ this.AuthorizationManager.assertClientCanViewProject = sinon
+ .stub()
+ .callsArgWith(1, null)
+ return this.WebsocketController.getConnectedUsers(
+ this.client,
+ (...args) => {
+ this.callback(...Array.from(args || []))
+ return done()
+ }
+ )
+ })
+
+ it('should check that the client is authorized to view the project', function () {
+ return this.AuthorizationManager.assertClientCanViewProject
+ .calledWith(this.client)
+ .should.equal(true)
+ })
+
+ it('should broadcast a request to update the client list', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(this.project_id, 'clientTracking.refresh')
+ .should.equal(true)
+ })
+
+ it('should get the connected users for the project', function () {
+ return this.ConnectedUsersManager.getConnectedUsers
+ .calledWith(this.project_id)
+ .should.equal(true)
+ })
+
+ it('should return the users', function () {
+ return this.callback.calledWith(null, this.users).should.equal(true)
+ })
+
+ return it('should increment the get-connected-users metric', function () {
+ return this.metrics.inc
+ .calledWith('editor.get-connected-users')
+ .should.equal(true)
+ })
+ })
+
+ describe('when not authorized', function () {
+ beforeEach(function () {
+ this.AuthorizationManager.assertClientCanViewProject = sinon
+ .stub()
+ .callsArgWith(1, (this.err = new Error('not authorized')))
+ return this.WebsocketController.getConnectedUsers(
+ this.client,
+ this.callback
+ )
+ })
+
+ it('should not get the connected users for the project', function () {
+ return this.ConnectedUsersManager.getConnectedUsers.called.should.equal(
+ false
+ )
+ })
+
+ return it('should return an error', function () {
+ return this.callback.calledWith(this.err).should.equal(true)
+ })
+ })
+
+ describe('when restricted user', function () {
+ beforeEach(function () {
+ this.client.ol_context.is_restricted_user = true
+ this.AuthorizationManager.assertClientCanViewProject = sinon
+ .stub()
+ .callsArgWith(1, null)
+ return this.WebsocketController.getConnectedUsers(
+ this.client,
+ this.callback
+ )
+ })
+
+ it('should return an empty array of users', function () {
+ return this.callback.calledWith(null, []).should.equal(true)
+ })
+
+ return it('should not get the connected users for the project', function () {
+ return this.ConnectedUsersManager.getConnectedUsers.called.should.equal(
+ false
+ )
+ })
+ })
+
+ return describe('when the client has disconnected', function () {
+ beforeEach(function () {
+ this.client.disconnected = true
+ this.AuthorizationManager.assertClientCanViewProject = sinon.stub()
+ return this.WebsocketController.getConnectedUsers(
+ this.client,
+ this.callback
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ return it('should not check permissions', function () {
+ return expect(
+ this.AuthorizationManager.assertClientCanViewProject.called
+ ).to.equal(false)
+ })
+ })
+ })
+
+ describe('updateClientPosition', function () {
+ beforeEach(function () {
+ this.WebsocketLoadBalancer.emitToRoom = sinon.stub()
+ this.ConnectedUsersManager.updateUserPosition = sinon
+ .stub()
+ .callsArgAsync(4)
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc = sinon
+ .stub()
+ .callsArgWith(2, null)
+ return (this.update = {
+ doc_id: (this.doc_id = 'doc-id-123'),
+ row: (this.row = 42),
+ column: (this.column = 37),
+ })
+ })
+
+ describe('with a logged in user', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {
+ project_id: this.project_id,
+ first_name: (this.first_name = 'Douglas'),
+ last_name: (this.last_name = 'Adams'),
+ email: (this.email = 'joe@example.com'),
+ user_id: (this.user_id = 'user-id-123'),
+ }
+
+ this.populatedCursorData = {
+ doc_id: this.doc_id,
+ id: this.client.publicId,
+ name: `${this.first_name} ${this.last_name}`,
+ row: this.row,
+ column: this.column,
+ email: this.email,
+ user_id: this.user_id,
+ }
+ this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ done
+ )
+ })
+
+ it("should send the update to the project room with the user's name", function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientUpdated',
+ this.populatedCursorData
+ )
+ .should.equal(true)
+ })
+
+ it('should send the cursor data to the connected user manager', function (done) {
+ this.ConnectedUsersManager.updateUserPosition
+ .calledWith(
+ this.project_id,
+ this.client.publicId,
+ {
+ _id: this.user_id,
+ email: this.email,
+ first_name: this.first_name,
+ last_name: this.last_name,
+ },
+ {
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ }
+ )
+ .should.equal(true)
+ return done()
+ })
+
+ return it('should increment the update-client-position metric at 0.1 frequency', function () {
+ return this.metrics.inc
+ .calledWith('editor.update-client-position', 0.1)
+ .should.equal(true)
+ })
+ })
+
+ describe('with a logged in user who has no last_name set', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {
+ project_id: this.project_id,
+ first_name: (this.first_name = 'Douglas'),
+ last_name: undefined,
+ email: (this.email = 'joe@example.com'),
+ user_id: (this.user_id = 'user-id-123'),
+ }
+
+ this.populatedCursorData = {
+ doc_id: this.doc_id,
+ id: this.client.publicId,
+ name: `${this.first_name}`,
+ row: this.row,
+ column: this.column,
+ email: this.email,
+ user_id: this.user_id,
+ }
+ this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ done
+ )
+ })
+
+ it("should send the update to the project room with the user's name", function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientUpdated',
+ this.populatedCursorData
+ )
+ .should.equal(true)
+ })
+
+ it('should send the cursor data to the connected user manager', function (done) {
+ this.ConnectedUsersManager.updateUserPosition
+ .calledWith(
+ this.project_id,
+ this.client.publicId,
+ {
+ _id: this.user_id,
+ email: this.email,
+ first_name: this.first_name,
+ last_name: undefined,
+ },
+ {
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ }
+ )
+ .should.equal(true)
+ return done()
+ })
+
+ return it('should increment the update-client-position metric at 0.1 frequency', function () {
+ return this.metrics.inc
+ .calledWith('editor.update-client-position', 0.1)
+ .should.equal(true)
+ })
+ })
+
+ describe('with a logged in user who has no first_name set', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {
+ project_id: this.project_id,
+ first_name: undefined,
+ last_name: (this.last_name = 'Adams'),
+ email: (this.email = 'joe@example.com'),
+ user_id: (this.user_id = 'user-id-123'),
+ }
+
+ this.populatedCursorData = {
+ doc_id: this.doc_id,
+ id: this.client.publicId,
+ name: `${this.last_name}`,
+ row: this.row,
+ column: this.column,
+ email: this.email,
+ user_id: this.user_id,
+ }
+ this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ done
+ )
+ })
+
+ it("should send the update to the project room with the user's name", function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(
+ this.project_id,
+ 'clientTracking.clientUpdated',
+ this.populatedCursorData
+ )
+ .should.equal(true)
+ })
+
+ it('should send the cursor data to the connected user manager', function (done) {
+ this.ConnectedUsersManager.updateUserPosition
+ .calledWith(
+ this.project_id,
+ this.client.publicId,
+ {
+ _id: this.user_id,
+ email: this.email,
+ first_name: undefined,
+ last_name: this.last_name,
+ },
+ {
+ row: this.row,
+ column: this.column,
+ doc_id: this.doc_id,
+ }
+ )
+ .should.equal(true)
+ return done()
+ })
+
+ return it('should increment the update-client-position metric at 0.1 frequency', function () {
+ return this.metrics.inc
+ .calledWith('editor.update-client-position', 0.1)
+ .should.equal(true)
+ })
+ })
+ describe('with a logged in user who has no names set', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {
+ project_id: this.project_id,
+ first_name: undefined,
+ last_name: undefined,
+ email: (this.email = 'joe@example.com'),
+ user_id: (this.user_id = 'user-id-123'),
+ }
+ return this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ done
+ )
+ })
+
+ return it('should send the update to the project name with no name', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(this.project_id, 'clientTracking.clientUpdated', {
+ doc_id: this.doc_id,
+ id: this.client.publicId,
+ user_id: this.user_id,
+ name: '',
+ row: this.row,
+ column: this.column,
+ email: this.email,
+ })
+ .should.equal(true)
+ })
+ })
+
+ describe('with an anonymous user', function () {
+ beforeEach(function (done) {
+ this.client.ol_context = {
+ project_id: this.project_id,
+ }
+ return this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ done
+ )
+ })
+
+ it('should send the update to the project room with no name', function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith(this.project_id, 'clientTracking.clientUpdated', {
+ doc_id: this.doc_id,
+ id: this.client.publicId,
+ name: '',
+ row: this.row,
+ column: this.column,
+ })
+ .should.equal(true)
+ })
+
+ return it('should not send cursor data to the connected user manager', function (done) {
+ this.ConnectedUsersManager.updateUserPosition.called.should.equal(false)
+ return done()
+ })
+ })
+
+ return describe('when the client has disconnected', function () {
+ beforeEach(function (done) {
+ this.client.disconnected = true
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc =
+ sinon.stub()
+ return this.WebsocketController.updateClientPosition(
+ this.client,
+ this.update,
+ (...args) => {
+ this.callback(...args)
+ done(args[0])
+ }
+ )
+ })
+
+ it('should call the callback with no details', function () {
+ return expect(this.callback.args[0]).to.deep.equal([])
+ })
+
+ return it('should not check permissions', function () {
+ return expect(
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.called
+ ).to.equal(false)
+ })
+ })
+ })
+
+ describe('applyOtUpdate', function () {
+ beforeEach(function () {
+ this.update = { op: { p: 12, t: 'foo' } }
+ this.client.ol_context.user_id = this.user_id
+ this.client.ol_context.project_id = this.project_id
+ this.WebsocketController._assertClientCanApplyUpdate = sinon
+ .stub()
+ .yields()
+ return (this.DocumentUpdaterManager.queueChange = sinon
+ .stub()
+ .callsArg(3))
+ })
+
+ describe('succesfully', function () {
+ beforeEach(function () {
+ return this.WebsocketController.applyOtUpdate(
+ this.client,
+ this.doc_id,
+ this.update,
+ this.callback
+ )
+ })
+
+ it('should set the source of the update to the client id', function () {
+ return this.update.meta.source.should.equal(this.client.publicId)
+ })
+
+ it('should set the user_id of the update to the user id', function () {
+ return this.update.meta.user_id.should.equal(this.user_id)
+ })
+
+ it('should queue the update', function () {
+ return this.DocumentUpdaterManager.queueChange
+ .calledWith(this.project_id, this.doc_id, this.update)
+ .should.equal(true)
+ })
+
+ it('should call the callback', function () {
+ return this.callback.called.should.equal(true)
+ })
+
+ return it('should increment the doc updates', function () {
+ return this.metrics.inc
+ .calledWith('editor.doc-update')
+ .should.equal(true)
+ })
+ })
+
+ describe('unsuccessfully', function () {
+ beforeEach(function () {
+ this.client.disconnect = sinon.stub()
+ this.DocumentUpdaterManager.queueChange = sinon
+ .stub()
+ .callsArgWith(3, (this.error = new Error('Something went wrong')))
+ return this.WebsocketController.applyOtUpdate(
+ this.client,
+ this.doc_id,
+ this.update,
+ this.callback
+ )
+ })
+
+ it('should disconnect the client', function () {
+ return this.client.disconnect.called.should.equal(true)
+ })
+
+ it('should not log an error', function () {
+ return this.logger.error.called.should.equal(false)
+ })
+
+ return it('should call the callback with the error', function () {
+ return this.callback.calledWith(this.error).should.equal(true)
+ })
+ })
+
+ describe('when not authorized', function () {
+ beforeEach(function () {
+ this.client.disconnect = sinon.stub()
+ this.WebsocketController._assertClientCanApplyUpdate = sinon
+ .stub()
+ .yields((this.error = new Error('not authorized')))
+ return this.WebsocketController.applyOtUpdate(
+ this.client,
+ this.doc_id,
+ this.update,
+ this.callback
+ )
+ })
+
+ // This happens in a setTimeout to allow the client a chance to receive the error first.
+ // I'm not sure how to unit test, but it is acceptance tested.
+ // it "should disconnect the client", ->
+ // @client.disconnect.called.should.equal true
+
+ it('should not log a warning', function () {
+ return this.logger.warn.called.should.equal(false)
+ })
+
+ return it('should call the callback with the error', function () {
+ return this.callback.calledWith(this.error).should.equal(true)
+ })
+ })
+
+ return describe('update_too_large', function () {
+ beforeEach(function (done) {
+ this.client.disconnect = sinon.stub()
+ this.client.emit = sinon.stub()
+ this.client.ol_context.user_id = this.user_id
+ this.client.ol_context.project_id = this.project_id
+ const error = new UpdateTooLargeError(7372835)
+ this.DocumentUpdaterManager.queueChange = sinon
+ .stub()
+ .callsArgWith(3, error)
+ this.WebsocketController.applyOtUpdate(
+ this.client,
+ this.doc_id,
+ this.update,
+ this.callback
+ )
+ return setTimeout(() => done(), 1)
+ })
+
+ it('should call the callback with no error', function () {
+ this.callback.called.should.equal(true)
+ return this.callback.args[0].should.deep.equal([])
+ })
+
+ it('should log a warning with the size and context', function () {
+ this.logger.warn.called.should.equal(true)
+ return this.logger.warn.args[0].should.deep.equal([
+ {
+ user_id: this.user_id,
+ project_id: this.project_id,
+ doc_id: this.doc_id,
+ updateSize: 7372835,
+ },
+ 'update is too large',
+ ])
+ })
+
+ describe('after 100ms', function () {
+ beforeEach(function (done) {
+ return setTimeout(done, 100)
+ })
+
+ it('should send an otUpdateError the client', function () {
+ return this.client.emit.calledWith('otUpdateError').should.equal(true)
+ })
+
+ return it('should disconnect the client', function () {
+ return this.client.disconnect.called.should.equal(true)
+ })
+ })
+
+ return describe('when the client disconnects during the next 100ms', function () {
+ beforeEach(function (done) {
+ this.client.disconnected = true
+ return setTimeout(done, 100)
+ })
+
+ it('should not send an otUpdateError the client', function () {
+ return this.client.emit
+ .calledWith('otUpdateError')
+ .should.equal(false)
+ })
+
+ it('should not disconnect the client', function () {
+ return this.client.disconnect.called.should.equal(false)
+ })
+
+ return it('should increment the editor.doc-update.disconnected metric with a status', function () {
+ return expect(
+ this.metrics.inc.calledWith('editor.doc-update.disconnected', 1, {
+ status: 'at-otUpdateError',
+ })
+ ).to.equal(true)
+ })
+ })
+ })
+ })
+
+ return describe('_assertClientCanApplyUpdate', function () {
+ beforeEach(function () {
+ this.edit_update = {
+ op: [
+ { i: 'foo', p: 42 },
+ { c: 'bar', p: 132 },
+ ],
+ } // comments may still be in an edit op
+ this.comment_update = { op: [{ c: 'bar', p: 132 }] }
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc = sinon.stub()
+ return (this.AuthorizationManager.assertClientCanViewProjectAndDoc =
+ sinon.stub())
+ })
+
+ describe('with a read-write client', function () {
+ return it('should return successfully', function (done) {
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc.yields(null)
+ return this.WebsocketController._assertClientCanApplyUpdate(
+ this.client,
+ this.doc_id,
+ this.edit_update,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('with a read-only client and an edit op', function () {
+ return it('should return an error', function (done) {
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc.yields(
+ new Error('not authorized')
+ )
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(null)
+ return this.WebsocketController._assertClientCanApplyUpdate(
+ this.client,
+ this.doc_id,
+ this.edit_update,
+ error => {
+ expect(error.message).to.equal('not authorized')
+ return done()
+ }
+ )
+ })
+ })
+
+ describe('with a read-only client and a comment op', function () {
+ return it('should return successfully', function (done) {
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc.yields(
+ new Error('not authorized')
+ )
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(null)
+ return this.WebsocketController._assertClientCanApplyUpdate(
+ this.client,
+ this.doc_id,
+ this.comment_update,
+ error => {
+ expect(error).to.be.null
+ return done()
+ }
+ )
+ })
+ })
+
+ return describe('with a totally unauthorized client', function () {
+ return it('should return an error', function (done) {
+ this.AuthorizationManager.assertClientCanEditProjectAndDoc.yields(
+ new Error('not authorized')
+ )
+ this.AuthorizationManager.assertClientCanViewProjectAndDoc.yields(
+ new Error('not authorized')
+ )
+ return this.WebsocketController._assertClientCanApplyUpdate(
+ this.client,
+ this.doc_id,
+ this.comment_update,
+ error => {
+ expect(error.message).to.equal('not authorized')
+ return done()
+ }
+ )
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/WebsocketLoadBalancerTests.js b/services/real-time/test/unit/js/WebsocketLoadBalancerTests.js
new file mode 100644
index 0000000000..ec341a43bd
--- /dev/null
+++ b/services/real-time/test/unit/js/WebsocketLoadBalancerTests.js
@@ -0,0 +1,304 @@
+/* eslint-disable
+ no-return-assign,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+const SandboxedModule = require('sandboxed-module')
+const sinon = require('sinon')
+const modulePath = require('path').join(
+ __dirname,
+ '../../../app/js/WebsocketLoadBalancer'
+)
+
+describe('WebsocketLoadBalancer', function () {
+ beforeEach(function () {
+ this.rclient = {}
+ this.RoomEvents = { on: sinon.stub() }
+ this.WebsocketLoadBalancer = SandboxedModule.require(modulePath, {
+ requires: {
+ './RedisClientManager': {
+ createClientList: () => [],
+ },
+ './SafeJsonParse': (this.SafeJsonParse = {
+ parse: (data, cb) => cb(null, JSON.parse(data)),
+ }),
+ './EventLogger': { checkEventOrder: sinon.stub() },
+ './HealthCheckManager': { check: sinon.stub() },
+ './RoomManager': (this.RoomManager = {
+ eventSource: sinon.stub().returns(this.RoomEvents),
+ }),
+ './ChannelManager': (this.ChannelManager = { publish: sinon.stub() }),
+ './ConnectedUsersManager': (this.ConnectedUsersManager = {
+ refreshClient: sinon.stub(),
+ }),
+ },
+ })
+ this.io = {}
+ this.WebsocketLoadBalancer.rclientPubList = [{ publish: sinon.stub() }]
+ this.WebsocketLoadBalancer.rclientSubList = [
+ {
+ subscribe: sinon.stub(),
+ on: sinon.stub(),
+ },
+ ]
+
+ this.room_id = 'room-id'
+ this.message = 'otUpdateApplied'
+ return (this.payload = ['argument one', 42])
+ })
+
+ describe('emitToRoom', function () {
+ beforeEach(function () {
+ return this.WebsocketLoadBalancer.emitToRoom(
+ this.room_id,
+ this.message,
+ ...Array.from(this.payload)
+ )
+ })
+
+ return it('should publish the message to redis', function () {
+ return this.ChannelManager.publish
+ .calledWith(
+ this.WebsocketLoadBalancer.rclientPubList[0],
+ 'editor-events',
+ this.room_id,
+ JSON.stringify({
+ room_id: this.room_id,
+ message: this.message,
+ payload: this.payload,
+ })
+ )
+ .should.equal(true)
+ })
+ })
+
+ describe('emitToAll', function () {
+ beforeEach(function () {
+ this.WebsocketLoadBalancer.emitToRoom = sinon.stub()
+ return this.WebsocketLoadBalancer.emitToAll(
+ this.message,
+ ...Array.from(this.payload)
+ )
+ })
+
+ return it("should emit to the room 'all'", function () {
+ return this.WebsocketLoadBalancer.emitToRoom
+ .calledWith('all', this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ })
+ })
+
+ describe('listenForEditorEvents', function () {
+ beforeEach(function () {
+ this.WebsocketLoadBalancer._processEditorEvent = sinon.stub()
+ return this.WebsocketLoadBalancer.listenForEditorEvents()
+ })
+
+ it('should subscribe to the editor-events channel', function () {
+ return this.WebsocketLoadBalancer.rclientSubList[0].subscribe
+ .calledWith('editor-events')
+ .should.equal(true)
+ })
+
+ return it('should process the events with _processEditorEvent', function () {
+ return this.WebsocketLoadBalancer.rclientSubList[0].on
+ .calledWith('message', sinon.match.func)
+ .should.equal(true)
+ })
+ })
+
+ return describe('_processEditorEvent', function () {
+ describe('with bad JSON', function () {
+ beforeEach(function () {
+ this.isRestrictedUser = false
+ this.SafeJsonParse.parse = sinon
+ .stub()
+ .callsArgWith(1, new Error('oops'))
+ return this.WebsocketLoadBalancer._processEditorEvent(
+ this.io,
+ 'editor-events',
+ 'blah'
+ )
+ })
+
+ return it('should log an error', function () {
+ return this.logger.error.called.should.equal(true)
+ })
+ })
+
+ describe('with a designated room', function () {
+ beforeEach(function () {
+ this.io.sockets = {
+ clients: sinon.stub().returns([
+ {
+ id: 'client-id-1',
+ emit: (this.emit1 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-2',
+ emit: (this.emit2 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-1',
+ emit: (this.emit3 = sinon.stub()),
+ ol_context: {},
+ }, // duplicate client
+ ]),
+ }
+ const data = JSON.stringify({
+ room_id: this.room_id,
+ message: this.message,
+ payload: this.payload,
+ })
+ return this.WebsocketLoadBalancer._processEditorEvent(
+ this.io,
+ 'editor-events',
+ data
+ )
+ })
+
+ return it('should send the message to all (unique) clients in the room', function () {
+ this.io.sockets.clients.calledWith(this.room_id).should.equal(true)
+ this.emit1
+ .calledWith(this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ this.emit2
+ .calledWith(this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ return this.emit3.called.should.equal(false)
+ })
+ }) // duplicate client should be ignored
+
+ describe('with a designated room, and restricted clients, not restricted message', function () {
+ beforeEach(function () {
+ this.io.sockets = {
+ clients: sinon.stub().returns([
+ {
+ id: 'client-id-1',
+ emit: (this.emit1 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-2',
+ emit: (this.emit2 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-1',
+ emit: (this.emit3 = sinon.stub()),
+ ol_context: {},
+ }, // duplicate client
+ {
+ id: 'client-id-4',
+ emit: (this.emit4 = sinon.stub()),
+ ol_context: { is_restricted_user: true },
+ },
+ ]),
+ }
+ const data = JSON.stringify({
+ room_id: this.room_id,
+ message: this.message,
+ payload: this.payload,
+ })
+ return this.WebsocketLoadBalancer._processEditorEvent(
+ this.io,
+ 'editor-events',
+ data
+ )
+ })
+
+ return it('should send the message to all (unique) clients in the room', function () {
+ this.io.sockets.clients.calledWith(this.room_id).should.equal(true)
+ this.emit1
+ .calledWith(this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ this.emit2
+ .calledWith(this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ this.emit3.called.should.equal(false) // duplicate client should be ignored
+ return this.emit4.called.should.equal(true)
+ })
+ }) // restricted client, but should be called
+
+ describe('with a designated room, and restricted clients, restricted message', function () {
+ beforeEach(function () {
+ this.io.sockets = {
+ clients: sinon.stub().returns([
+ {
+ id: 'client-id-1',
+ emit: (this.emit1 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-2',
+ emit: (this.emit2 = sinon.stub()),
+ ol_context: {},
+ },
+ {
+ id: 'client-id-1',
+ emit: (this.emit3 = sinon.stub()),
+ ol_context: {},
+ }, // duplicate client
+ {
+ id: 'client-id-4',
+ emit: (this.emit4 = sinon.stub()),
+ ol_context: { is_restricted_user: true },
+ },
+ ]),
+ }
+ const data = JSON.stringify({
+ room_id: this.room_id,
+ message: (this.restrictedMessage = 'new-comment'),
+ payload: this.payload,
+ })
+ return this.WebsocketLoadBalancer._processEditorEvent(
+ this.io,
+ 'editor-events',
+ data
+ )
+ })
+
+ return it('should send the message to all (unique) clients in the room, who are not restricted', function () {
+ this.io.sockets.clients.calledWith(this.room_id).should.equal(true)
+ this.emit1
+ .calledWith(this.restrictedMessage, ...Array.from(this.payload))
+ .should.equal(true)
+ this.emit2
+ .calledWith(this.restrictedMessage, ...Array.from(this.payload))
+ .should.equal(true)
+ this.emit3.called.should.equal(false) // duplicate client should be ignored
+ return this.emit4.called.should.equal(false)
+ })
+ }) // restricted client, should not be called
+
+ return describe('when emitting to all', function () {
+ beforeEach(function () {
+ this.io.sockets = { emit: (this.emit = sinon.stub()) }
+ const data = JSON.stringify({
+ room_id: 'all',
+ message: this.message,
+ payload: this.payload,
+ })
+ return this.WebsocketLoadBalancer._processEditorEvent(
+ this.io,
+ 'editor-events',
+ data
+ )
+ })
+
+ return it('should send the message to all clients', function () {
+ return this.emit
+ .calledWith(this.message, ...Array.from(this.payload))
+ .should.equal(true)
+ })
+ })
+ })
+})
diff --git a/services/real-time/test/unit/js/helpers/MockClient.js b/services/real-time/test/unit/js/helpers/MockClient.js
new file mode 100644
index 0000000000..61cde89ba9
--- /dev/null
+++ b/services/real-time/test/unit/js/helpers/MockClient.js
@@ -0,0 +1,23 @@
+/* eslint-disable
+ no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+let MockClient
+const sinon = require('sinon')
+
+let idCounter = 0
+
+module.exports = MockClient = class MockClient {
+ constructor() {
+ this.ol_context = {}
+ this.join = sinon.stub()
+ this.emit = sinon.stub()
+ this.disconnect = sinon.stub()
+ this.id = idCounter++
+ this.publicId = idCounter++
+ this.joinLeaveEpoch = 0
+ }
+
+ disconnect() {}
+}