mirror of
https://github.com/overleaf/overleaf.git
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229 lines
8.7 KiB
CoffeeScript
229 lines
8.7 KiB
CoffeeScript
request = require 'request'
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request = request.defaults()
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settings = require 'settings-sharelatex'
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_ = require 'underscore'
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async = require 'async'
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logger = require('logger-sharelatex')
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metrics = require('metrics-sharelatex')
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Project = require("../../models/Project").Project
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module.exports = DocumentUpdaterHandler =
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flushProjectToMongo: (project_id, callback = (error) ->)->
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logger.log project_id:project_id, "flushing project from document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/flush"
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method: "POST"
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}, project_id, "flushing.mongo.project", callback
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flushMultipleProjectsToMongo: (project_ids, callback = (error) ->) ->
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jobs = []
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for project_id in project_ids
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do (project_id) ->
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jobs.push (callback) ->
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DocumentUpdaterHandler.flushProjectToMongo project_id, callback
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async.series jobs, callback
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flushProjectToMongoAndDelete: (project_id, callback = ()->) ->
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timer = new metrics.Timer("delete.mongo.project")
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url = "#{settings.apis.documentupdater.url}"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}"
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method: "DELETE"
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}, project_id, "flushing.mongo.project", callback
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flushDocToMongo: (project_id, doc_id, callback = (error) ->) ->
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logger.log project_id:project_id, doc_id: doc_id, "flushing doc from document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}/flush"
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method: "POST"
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}, project_id, "flushing.mongo.doc", callback
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deleteDoc : (project_id, doc_id, callback = ()->)->
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logger.log project_id:project_id, doc_id: doc_id, "deleting doc from document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}"
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method: "DELETE"
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}, project_id, "delete.mongo.doc", callback
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getDocument: (project_id, doc_id, fromVersion, callback = (error, doclines, version, ranges, ops) ->) ->
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logger.log project_id:project_id, doc_id: doc_id, "getting doc from document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}?fromVersion=#{fromVersion}"
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json: true
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}, project_id, "get-document", (error, doc) ->
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return callback(error) if error?
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callback null, doc.lines, doc.version, doc.ranges, doc.ops
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setDocument : (project_id, doc_id, user_id, docLines, source, callback = (error) ->)->
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logger.log project_id:project_id, doc_id: doc_id, source: source, user_id: user_id, "setting doc in document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}"
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method: "POST"
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json:
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lines: docLines
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source: source
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user_id: user_id
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}, project_id, "set-document", callback
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getProjectDocsIfMatch: (project_id, projectStateHash, callback = (error, docs) ->) ->
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# If the project state hasn't changed, we can get all the latest
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# docs from redis via the docupdater. Otherwise we will need to
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# fall back to getting them from mongo.
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timer = new metrics.Timer("get-project-docs")
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url = "#{settings.apis.documentupdater.url}/project/#{project_id}/get_and_flush_if_old?state=#{projectStateHash}"
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logger.log project_id:project_id, "getting project docs from document updater"
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request.post url, (error, res, body)->
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timer.done()
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if error?
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logger.error err:error, url:url, project_id:project_id, "error getting project docs from doc updater"
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return callback(error)
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if res.statusCode is 409 # HTTP response code "409 Conflict"
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# Docupdater has checked the projectStateHash and found that
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# it has changed. This means that the docs currently in redis
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# aren't the only change to the project and the full set of
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# docs/files should be retreived from docstore/filestore
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# instead.
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return callback()
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else if res.statusCode >= 200 and res.statusCode < 300
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logger.log project_id:project_id, "got project docs from document document updater"
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try
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docs = JSON.parse(body)
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catch error
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return callback(error)
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callback null, docs
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else
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logger.error project_id:project_id, url: url, "doc updater returned a non-success status code: #{res.statusCode}"
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callback new Error("doc updater returned a non-success status code: #{res.statusCode}")
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clearProjectState: (project_id, callback = (error) ->) ->
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logger.log project_id:project_id, "clearing project state from document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/clearState"
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method: "POST"
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}, project_id, "clear-project-state", callback
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acceptChanges: (project_id, doc_id, change_ids = [], callback = (error) ->) ->
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logger.log {project_id, doc_id }, "accepting #{ change_ids.length } changes"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}/change/accept"
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json:
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change_ids: change_ids
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method: "POST"
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}, project_id, "accept-changes", callback
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deleteThread: (project_id, doc_id, thread_id, callback = (error) ->) ->
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timer = new metrics.Timer("delete-thread")
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logger.log {project_id, doc_id, thread_id}, "deleting comment range in document updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/doc/#{doc_id}/comment/#{thread_id}"
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method: "DELETE"
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}, project_id, "delete-thread", callback
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resyncProjectHistory: (project_id, projectHistoryId, docs, files, callback) ->
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logger.info {project_id, docs, files}, "resyncing project history in doc updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}/history/resync"
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json: { docs, files, projectHistoryId }
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method: "POST"
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}, project_id, "resync-project-history", callback
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updateProjectStructure: (project_id, projectHistoryId, userId, changes, callback = (error) ->)->
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return callback() if !settings.apis.project_history?.sendProjectStructureOps
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Project.findOne {_id: project_id}, {version:true}, (err, currentProject) ->
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return callback(err) if err?
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return callback new Error("project not found") if !currentProject?
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docUpdates = DocumentUpdaterHandler._getUpdates('doc', changes.oldDocs, changes.newDocs)
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fileUpdates = DocumentUpdaterHandler._getUpdates('file', changes.oldFiles, changes.newFiles)
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return callback() if (docUpdates.length + fileUpdates.length) < 1
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logger.log {project_id}, "updating project structure in doc updater"
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DocumentUpdaterHandler._makeRequest {
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path: "/project/#{project_id}"
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json: {
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docUpdates,
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fileUpdates,
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userId,
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version: currentProject.version
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projectHistoryId
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}
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method: "POST"
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}, project_id, "update-project-structure", callback
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_makeRequest: (options, project_id, metricsKey, callback) ->
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timer = new metrics.Timer(metricsKey)
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request {
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url: "#{settings.apis.documentupdater.url}#{options.path}"
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json: options.json
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method: options.method || "GET"
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}, (error, res, body)->
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timer.done()
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if error?
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logger.error {error, project_id}, "error making request to document updater"
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callback error
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else if res.statusCode >= 200 and res.statusCode < 300
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callback null, body
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else
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error = new Error("document updater returned a failure status code: #{res.statusCode}")
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logger.error {error, project_id}, "document updater returned failure status code: #{res.statusCode}"
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callback error
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_getUpdates: (entityType, oldEntities, newEntities) ->
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oldEntities ||= []
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newEntities ||= []
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updates = []
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oldEntitiesHash = _.indexBy oldEntities, (entity) -> entity[entityType]._id.toString()
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newEntitiesHash = _.indexBy newEntities, (entity) -> entity[entityType]._id.toString()
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# Send deletes before adds (and renames) to keep a 1:1 mapping between
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# paths and ids
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#
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# When a file is replaced, we first delete the old file and then add the
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# new file. If the 'add' operation is sent to project history before the
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# 'delete' then we would have two files with the same path at that point
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# in time.
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for id, oldEntity of oldEntitiesHash
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newEntity = newEntitiesHash[id]
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if !newEntity?
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# entity deleted
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updates.push
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id: id
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pathname: oldEntity.path
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newPathname: ''
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for id, newEntity of newEntitiesHash
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oldEntity = oldEntitiesHash[id]
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if !oldEntity?
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# entity added
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updates.push
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id: id
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pathname: newEntity.path
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docLines: newEntity.docLines
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url: newEntity.url
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else if newEntity.path != oldEntity.path
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# entity renamed
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updates.push
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id: id
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pathname: oldEntity.path
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newPathname: newEntity.path
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updates
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PENDINGUPDATESKEY = "PendingUpdates"
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DOCLINESKEY = "doclines"
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DOCIDSWITHPENDINGUPDATES = "DocsWithPendingUpdates"
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keys =
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pendingUpdates : (op) -> "#{PENDINGUPDATESKEY}:#{op.doc_id}"
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docsWithPendingUpdates: DOCIDSWITHPENDINGUPDATES
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docLines : (op) -> "#{DOCLINESKEY}:#{op.doc_id}"
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combineProjectIdAndDocId: (project_id, doc_id) -> "#{project_id}:#{doc_id}"
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