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hedgedoc/docs/content/configuration.md
Erik Michelson 858d7bf5d1 feat: option to disable note creation 
The abuse of the demo instance required us to disallow note creation

Signed-off-by: Erik Michelson <github@erik.michelson.eu>
Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>
2024-07-21 11:03:35 +02:00

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# Configuration
You can choose to configure HedgeDoc with either a config file or with environment variables.
Environment variables take precedence over configurations from the config files. They generally start with `CMD_` for our own options, but we also list node-specific options you can configure this way.
- Environment variables are processed in [`lib/config/environment.js`](https://github.com/hedgedoc/hedgedoc/tree/master/lib/config/environment.js) - so this is the first place to look if anything is missing not obvious from this document. The default values are defined in [`lib/config/default.js`](https://github.com/hedgedoc/hedgedoc/tree/master/lib/config/default.js), in case you wonder if you even need to override it.
- The config file is processed in [`lib/config/index.js`](https://github.com/hedgedoc/hedgedoc/tree/master/lib/config/index.js) - so this is the first place to look if anything is missing not obvious from this document. The default values are defined in [`lib/config/default.js`](https://github.com/hedgedoc/hedgedoc/tree/master/lib/config/default.js), in case you wonder if you even need to override it. To get started, it is a good idea to take the [`config.json.example`](https://github.com/hedgedoc/hedgedoc/tree/master/config.json.example) and copy it
to `config.json` before filling in your own details.
**Note:** *Due to the rename process we renamed all `HMD_`-prefix variables to be `CMD_`-prefixed. The old ones continue to work.*
## Node.JS
| config file | environment | **default** and example value | description |
| ----------- | ----------- | ----------------------------- | -------------------------------------------------------------------------------- |
| | `NODE_ENV` | `production` or `development` | set current environment (will apply corresponding settings in the `config.json`) |
| `debug` | `DEBUG` | `true` or `false` | set debug mode, show more logs |
## HedgeDoc basics
| config file | environment | **default** and example value | description |
|----------------------|---------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | `CMD_CONFIG_FILE` | **no default**, `/path/to/config.json` | optional override for the path to HedgeDoc's config file |
| `db` | | **`undefined`**, `{ "dialect": "sqlite", "storage": "./db.hedgedoc.sqlite" }` | set the db configs, [see more here](https://sequelize.org/v5/manual/dialects.html) |
| `db.username` | `CMD_DB_USERNAME` | **`undefined`**, `hedgedoc-db-user` | Username used to authenticate to the database (host). |
| `db.password` | `CMD_DB_PASSWORD` | **`undefined`** | Password used to authenticate to the database (host). |
| `db.database` | `CMD_DB_DATABASE` | **`undefined`**, `hedgedoc` | Name of the database used to store hedgedoc data. |
| `db.host` | `CMD_DB_HOST` | **`undefined`**, `db-host.example.com` | Hostname used to connect the database server. |
| `db.post` | `CMD_DB_PORT` | **`undefined`**, `5432` | Port used to connect the database server. |
| `db.dialect` | `CMD_DB_DIALECT` | **`undefined`**, `postgres`, `mariadb` | [Dialect](https://sequelize.org/v5/manual/dialects.html) / protocol used to connect to the database. |
| `dbURL` | `CMD_DB_URL` | **`undefined`**, `postgres://username:password@localhost:5432/hedgedoc` or `mysql://username:password@localhost:3306/hedgedoc` | Set the db in URL style. If set, then the relevant `db` config entries will be overridden. |
| `loglevel` | `CMD_LOGLEVEL` | **`info`**, `debug` ... | Defines what kind of logs are provided to stdout. Available options: `debug`, `verbose`, `info`, `warn`, `error` |
| `forbiddenNoteIDs` | `CMD_FORBIDDEN_NOTE_IDS` | **`['robots.txt', 'favicon.ico', 'api', 'build', 'css', 'docs', 'fonts', 'js', 'uploads', 'vendor', 'views']`**, `['robots.txt']` or `'robots.txt'` | disallow creation of notes, even if `allowFreeUrl` or `CMD_ALLOW_FREEURL` is `true` |
| `imageUploadType` | `CMD_IMAGE_UPLOAD_TYPE` | **`filesystem`**, `imgur`, `s3`, `minio`, `azure`, `lutim` | Where to upload images. For S3, see our Image Upload Guides for [S3](guides/s3-image-upload.md) or [Minio](guides/minio-image-upload.md), also there's a whole section on their respective env vars below. |
| `sourceURL` | `CMD_SOURCE_URL` | **no default**, `https://github.com/hedgedoc/hedgedoc/tree/<current commit>` | Provides the link to the source code of HedgeDoc on the entry page (Please, make sure you change this when you run a modified version) |
| `tooBusyLag` | `CMD_TOOBUSY_LAG` | **`70`** | CPU time for one event loop tick until node throttles connections. (milliseconds) |
| `staticCacheTime` | | **`1 * 24 * 60 * 60 * 1000`** | static file cache time |
| `heartbeatInterval` | | **`5000`** | socket.io heartbeat interval |
| `heartbeatTimeout` | | **`10000`** | socket.io heartbeat timeout |
| `documentMaxLength` | `CMD_DOCUMENT_MAX_LENGTH` | **`100000`** | note max length |
| `linkifyHeaderStyle` | | **`keep-case`**, `lower-case`, `gfm` | how is a header text converted into a link id |
| `enableStatsApi` | `CMD_ENABLE_STATS_API` | **`true`**, `false` | Enables or disables the /status and /metrics endpoint. |
## HedgeDoc paths stuff
these are rarely used for various reasons.
| config file | environment | **default** and example values | description |
| ----------------- | ----------- | ----------------------------------------------------- | ------------------------------------------------------------------------------------------------ |
| `defaultNotePath` | | **`./public/default.md`** | default note file path<sup>1</sup>, empty notes will be created with this template. |
| `dhParamPath` | | **`undefined`**, `./cert/dhparam.pem` | SSL dhparam path<sup>1</sup> (only need when you set `useSSL`) |
| `sslCAPath` | | **`undefined`**, `['./cert/COMODORSAAddTrustCA.crt']` | SSL ca chain<sup>1</sup> (only need when you set `useSSL`) |
| `sslCertPath` | | **`undefined`**, `./cert/hedgedoc_io.crt` | SSL cert path<sup>1</sup> (only need when you set `useSSL`) |
| `sslKeyPath` | | **`undefined`**, `./cert/client.key` | SSL key path<sup>1</sup> (only need when you set `useSSL`) |
| `tmpPath` | | **`os.tmpdir()`**, `./tmp/` | temp directory path<sup>1</sup> |
| `docsPath` | | **`./public/docs`** | docs directory path<sup>1</sup> |
| `viewPath` | | **`./public/views`** | template directory path<sup>1</sup> |
| `uploadsPath` | | **`./public/uploads`** | uploads directory<sup>1</sup> - needs to be persistent when you use imageUploadType `filesystem` |
**Note:** *relative paths are based on HedgeDoc's base directory*
## HedgeDoc Location
| config file | environment | **default** and example value | description |
| ---------------- | --------------------- | ---------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `domain` | `CMD_DOMAIN` | **`null`**, `localhost`, `hedgedoc.org` | domain name |
| `urlPath` | `CMD_URL_PATH` | **`null`**, `hedgedoc` | If HedgeDoc is run from a subdirectory like `www.example.com/<urlpath>` |
| `host` | `CMD_HOST` | **`0.0.0.0`**, `localhost` | interface/ip to listen on |
| `port` | `CMD_PORT` | **`3000`**, `80` | port to listen on |
| `path` | `CMD_PATH` | **no default**, `/var/run/hedgedoc.sock` | path to UNIX domain socket to listen on (if specified, `host` or `CMD_HOST` and `port` or `CMD_PORT` are ignored) |
| `protocolUseSSL` | `CMD_PROTOCOL_USESSL` | **`false`** or `true` | set to use SSL protocol for resources path (only applied when domain is set) |
| `useSSL` | | **`false`** or `true` | set to use SSL server (if `true`, will auto turn on `protocolUseSSL`) |
| `urlAddPort` | `CMD_URL_ADDPORT` | **`false`** or `true` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
| `allowOrigin` | `CMD_ALLOW_ORIGIN` | **`['localhost']`**, `['hedgedoc.org']`, `['localhost', 'hedgedoc.org']` | domain name whitelist (use comma to separate) |
## Web security aspects
| config file | environment | **default** and example value | description |
| ----------------------------- | ------------------------------ | ------------------------------------------------------------------------------------------| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `hsts` | | `{"enable": true, "maxAgeSeconds": 31536000, "includeSubdomains": true, "preload": true}` | [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) options to use with HTTPS (default is the example value, max age is a year) |
| | `CMD_HSTS_ENABLE` | **`true`** or `false` | set to enable [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) if HTTPS is also enabled (default is ` true`) |
| | `CMD_HSTS_INCLUDE_SUBDOMAINS` | **`true`** or `false` | set to include subdomains in HSTS (default is `true`) |
| | `CMD_HSTS_MAX_AGE` | **`31536000`**, `60 * 60 * 24 * 365` | max duration in seconds to tell clients to keep HSTS status (default is a year) |
| | `CMD_HSTS_PRELOAD` | **`true`** or `false` | whether to allow preloading of the site's HSTS status (e.g. into browsers) |
| `csp` | | `{"enable": true, "addDefaults": true}` | Nested object to configure the Content Security Policy |
| `csp.enable` | `CMD_CSP_ENABLE` | **`true`** or `false` | Whether to apply a `Content-Security-Policy` header to responses. We don't recommend disabling this option, as it significantly reduces the security of the application. |
| `csp.addDefaults` | | **`true`** or `false` | Disable to not include the default CSP. Be careful, this will break the application if the correct directives are not set manually. |
| `csp.directives` | | **no default**, `{"scriptSrc": "trustworthy-scripts.example.com"}` | Custom CSP directives. These are passed to Helmet - see [their documentation](https://helmetjs.github.io/docs/csp/) for more information on the format. |
| `csp.addDisqus` | `CMD_CSP_ADD_DISQUS` | **`false`** or `true` | Enable to allow users to add Disqus comments to their notes or presentations. We don't recommend enabling this option, as it increases the attack surface of XSS attacks. |
| `csp.addGoogleAnalytics` | `CMD_CSP_ADD_GOOGLE_ANALYTICS` | **`false`** or `true` | Enable to allow users to add Google Analytics to their notes. We don't recommend enabling this option, as it increases the attack surface of XSS attacks. |
| `csp.upgradeInsecureRequests` | | **`auto`** or `true` or `false` | By default (`auto`), insecure (HTTP) requests are upgraded to HTTPS via CSP if `useSSL` is on. To change this behaviour, set to either `true` or `false`. |
| `csp.reportUri` | `CMD_CSP_REPORTURI` | **`undefined`**, `https://<someid>.report-uri.com/r/d/csp/enforce` | Allows to add a URL for CSP reports in case of violations. |
| `csp.allowFraming` | `CMD_CSP_ALLOW_FRAMING` | **`true`** or `false` | Disable to disallow embedding of the instance via iframe. We **strongly recommend disabling** this option, as it increases the attack surface of XSS attacks. |
| `csp.allowPDFEmbed` | `CMD_CSP_ALLOW_PDF_EMBED` | **`true`** or `false` | Disable to disallow embedding PDFs. We recommend disabling this option, as it increases the attack surface of XSS attacks. |
| `cookiePolicy` | `CMD_COOKIE_POLICY` | **`lax`**, `strict` or `none` | Set a SameSite policy whether cookies are send from cross-origin. Be careful: setting a SameSite value of none without https breaks the editor. |
## Privacy and External Requests
| config file | environment | **default** and example value | description |
| --------------- | -------------------- | ----------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `allowGravatar` | `CMD_ALLOW_GRAVATAR` | **`true`** or `false` | set to `false` to disable [Libravatar](https://www.libravatar.org/) as profile picture source on your instance. Libravatar is a federated open-source alternative to Gravatar. |
## Users and Privileges
| config file | environment | **default** and example value | description |
|--------------------------------|--------------------------------------|-------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `allowAnonymous` | `CMD_ALLOW_ANONYMOUS` | **`true`** or `false` | Set to allow anonymous usage (default is `true`). |
| `allowAnonymousEdits` | `CMD_ALLOW_ANONYMOUS_EDITS` | **`false`** or `true` | If `allowAnonymous` is `false`: allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`). |
| `allowFreeURL` | `CMD_ALLOW_FREEURL` | **`false`** or `true` | Set to allow new note creation by accessing a nonexistent note URL. This is the behavior familiar from [Etherpad](https://github.com/ether/etherpad-lite). |
| `requireFreeURLAuthentication` | `CMD_REQUIRE_FREEURL_AUTHENTICATION` | **`false`** or `true` | Set to require authentication for FreeURL mode style note creation. |
| `disableNoteCreation` | `CMD_DISABLE_NOTE_CREATION` | **`false`** or `true` | Set to `true` to disallow any person to create notes. |
| `defaultPermission` | `CMD_DEFAULT_PERMISSION` | **`editable`**, `freely`, `limited`, `locked`, `protected` or `private` | Set notes default permission (only applied on signed-in users). |
| `sessionName` | | **`connect.sid`** | Cookie session name. |
| `sessionLife` | `CMD_SESSION_LIFE` | **`14 * 24 * 60 * 60 * 1000`**, `1209600000` (14 days) | Cookie session life time in milliseconds. |
| `sessionSecret` | `CMD_SESSION_SECRET` | **`secret`** | Cookie session secret used to sign the session cookie. If none is set, one will randomly generated on each startup, meaning all your users will be logged out. Can be generated with e.g. `pwgen -s 64 1`. |
## Login methods
### Email (local account)
| config file | environment | **default** and example value | description |
| -------------------- | -------------------------- | ----------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `email` | `CMD_EMAIL` | **`true`** or `false` | Set to allow email sign-in. The default is `true`. |
| `allowEmailRegister` | `CMD_ALLOW_EMAIL_REGISTER` | **`true`** or `false` | Set to allow registration of new accounts using an email address. If set to `false`, you can still create accounts using the command line - see `bin/manage_users` for details (In production mode, remember to run it with `NODE_ENV` set as `production` in the enviroment). This setting has no effect if `email` or `CMD_EMAIL` is `false`. The default for `allowEmailRegister` or `CMD_ALLOW_EMAIL_REGISTER` is `true`. |
### Dropbox Login
| config file | environment | **default** and example value | description |
| ----------- | -------------------------- | ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- |
| `dropbox` | | `{clientID: ..., clientSecret: ...}` | An object containing the client ID and the client secret obtained by the [Dropbox developer tools](https://www.dropbox.com/developers/apps) |
| | `CMD_DROPBOX_CLIENTID` | **no default** | Dropbox API client id |
| | `CMD_DROPBOX_CLIENTSECRET` | **no default** | Dropbox API client secret |
### Facebook Login
| config file | environment | **default** and example value | description |
| ----------- | --------------------------- | ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------- |
| `facebook` | | `{clientID: ..., clientSecret: ...}` | An object containing the client ID and the client secret obtained by the [Facebook app console](https://developers.facebook.com/apps) |
| | `CMD_FACEBOOK_CLIENTID` | **no default** | Facebook API client id |
| | `CMD_FACEBOOK_CLIENTSECRET` | **no default** | Facebook API client secret |
### GitHub Login
| config file | environment | **default** and example value | description |
| ----------- | ------------------------- | ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `github` | | `{clientID: ..., clientSecret: ...}` | An object containing the client ID and the client secret obtained by the GitHub developer page. For more details have a look at the [GitHub auth guide](guides/auth/github.md). |
| | `CMD_GITHUB_CLIENTID` | **no default** | GitHub API client id |
| | `CMD_GITHUB_CLIENTSECRET` | **no default** | GitHub API client secret |
### GitLab Login
| config file | environment | **default** and example value | description |
| ----------- | ------------------------- | ---------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
| `gitlab` | | `{baseURL: ..., scope: ..., version: ..., clientID: ..., clientSecret: ...}` | An object containing your GitLab application data. Refer to the [GitLab guide](guides/auth/gitlab-self-hosted.md) for more details! |
| | `CMD_GITLAB_SCOPE` | **no default**, `read_user` or `api` | GitLab API requested scope (default is `api`) (GitLab snippet import/export need `api` scope) |
| | `CMD_GITLAB_BASEURL` | **no default** | GitLab authentication endpoint, set to use other endpoint than GitLab.com (optional) |
| | `CMD_GITLAB_CLIENTID` | **no default** | GitLab API client id |
| | `CMD_GITLAB_CLIENTSECRET` | **no default** | GitLab API client secret |
| | `CMD_GITLAB_VERSION` | **`v4`** | GitLab API version (v3 or v4) |
### Google Login
| config file | environment | **default** and example value | description |
| ----------- | ------------------------- | ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `google` | | `{clientID: ..., clientSecret: ..., hostedDomain: ...}` | An object containing the client ID and the client secret obtained by the [Google API console](https://console.cloud.google.com/apis) |
| | `CMD_GOOGLE_CLIENTID` | **no default** | Google API client id |
| | `CMD_GOOGLE_CLIENTSECRET` | **no default** | Google API client secret |
| | `CMD_GOOGLE_HOSTEDDOMAIN` | **no default**, `example.com` | Provided only if the user belongs to a hosted domain. default is `undefined` |
### LDAP Login
| config file | environment | **default** and example value | description |
| ----------- | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
| `ldap` | | `{providerName: ..., url: ..., bindDn: ..., bindCredentials: ..., searchBase: ..., searchFilter: ..., searchAttributes: ..., usernameField: ..., useridField: ..., tlsca: ...}` | An object detailing the LDAP connection. Refer to the [LDAP-AD guide](guides/auth/ldap-ad.md) for more details! |
| | `CMD_LDAP_URL` | **no default**, `ldap://example.com` | URL of LDAP server |
| | `CMD_LDAP_BINDDN` | **no default** | bindDn for LDAP access |
| | `CMD_LDAP_BINDCREDENTIALS` | **no default**, | bindCredentials for LDAP access |
| | `CMD_LDAP_SEARCHBASE` | **no default**, `o=users,dc=example,dc=com` | LDAP directory to begin search from |
| | `CMD_LDAP_SEARCHFILTER` | **no default**, `(uid={{username}})` | LDAP filter to search with |
| | `CMD_LDAP_SEARCHATTRIBUTES` | **no default**, `displayName, mail` | LDAP attributes to search with (use comma to separate) |
| | `CMD_LDAP_USERIDFIELD` | **no default**, `uidNumber` or `uid` or `sAMAccountName` | The LDAP field which is used uniquely identify a user on HedgeDoc |
| | `CMD_LDAP_USERNAMEFIELD` | **no default**, fallback to userid | The LDAP field which is used as the username on HedgeDoc |
| | `CMD_LDAP_TLS_CA` | **no default**, `server-cert.pem, root.pem` | Root CA for LDAP TLS in PEM format (use comma to separate) |
| | `CMD_LDAP_PROVIDERNAME` | **no default**, `My institution` | Optional name to be displayed at login form indicating the LDAP provider |
### Mattermost Login
| config file | environment | **default** and example value | description |
| ------------ | ----------------------------- | -------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `mattermost` | | `{baseURL: ..., clientID: ..., clientSecret: ...}` | An object containing the base URL of your Mattermost application data. Refer to the [Mattermost guide](guides/auth/mattermost-self-hosted.md) for more details! |
| | `CMD_MATTERMOST_BASEURL` | **no default** | Mattermost authentication endpoint for versions below 5.0. For Mattermost version 5.0 and above, see [guide](guides/auth/mattermost-self-hosted.md). |
| | `CMD_MATTERMOST_CLIENTID` | **no default** | Mattermost API client id |
| | `CMD_MATTERMOST_CLIENTSECRET` | **no default** | Mattermost API client secret |
### OAuth2 Login
| config file | environment | **default** and example value | description |
| ----------- | ------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `oauth2` | | `{baseURL: ..., userProfileURL: ..., userProfileUsernameAttr: ..., userProfileDisplayNameAttr: ..., userProfileEmailAttr: ..., tokenURL: ..., authorizationURL: ..., clientID: ..., clientSecret: ..., scope: ...}` | An object detailing your OAuth2 provider. Refer to the [Mattermost](guides/auth/mattermost-self-hosted.md) or [Nextcloud](guides/auth/nextcloud.md) examples for more details! |
| | `CMD_OAUTH2_USER_PROFILE_URL` | **no default**, `https://example.com` | Where to retrieve information about a user after successful login. Needs to output JSON. (no default value) Refer to the [Mattermost](guides/auth/mattermost-self-hosted.md) or [Nextcloud](guides/auth/nextcloud.md) examples for more details on all of the `CMD_OAUTH2...` options. |
| | `CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR` | **no default**, `name` | where to find the username in the JSON from the user profile URL. (no default value) |
| | `CMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR` | **no default**, `display-name` | where to find the display-name in the JSON from the user profile URL. (no default value) |
| | `CMD_OAUTH2_USER_PROFILE_EMAIL_ATTR` | **no default**, `email` | where to find the email address in the JSON from the user profile URL. (no default value) |
| | `CMD_OAUTH2_USER_PROFILE_ID_ATTR` | **no default**, `user_uuid` | where to find the dedicated user ID (optional, overrides `CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR`) |
| | `CMD_OAUTH2_TOKEN_URL` | **no default**, `https://example.com` | sometimes called token endpoint, please refer to the documentation of your OAuth2 provider (no default value) |
| | `CMD_OAUTH2_AUTHORIZATION_URL` | **no default**, `https://example.com` | authorization URL of your provider, please refer to the documentation of your OAuth2 provider (no default value) |
| | `CMD_OAUTH2_CLIENT_ID` | **no default**, `afae02fckafd...` | you will get this from your OAuth2 provider when you register HedgeDoc as OAuth2-client, (no default value) |
| | `CMD_OAUTH2_CLIENT_SECRET` | **no default**, `afae02fckafd...` | you will get this from your OAuth2 provider when you register HedgeDoc as OAuth2-client, (no default value) |
| | `CMD_OAUTH2_PROVIDERNAME` | **no default**, `My institution` | Optional name to be displayed at login form indicating the oAuth2 provider |
| | `CMD_OAUTH2_SCOPE` | **no default**, `openid email profile` | Scope to request for OIDC (OpenID Connect) providers. |
| | `CMD_OAUTH2_ROLES_CLAIM` | **no default**, `roles` | ID token claim, which is supposed to provide an array of strings of roles |
| | `CMD_OAUTH2_ACCESS_ROLE` | **no default**, `role/hedgedoc` | The role which should be included in the ID token roles claim to grant access |
!!! info
If you are using a [CA not trusted by Node.js](https://github.com/nodejs/node/issues/4175) (like Let's Encrypt e.g) for your OAuth2 provider you can set the [`NODE_EXTRA_CA_CERTS`](https://nodejs.org/api/cli.html#cli_node_extra_ca_certs_file) environment variable to the CA certificate file path of your CA.
Remember to also make the file available inside the Docker container, if you're running HedgeDoc in Docker container.
### SAML Login
| config file | environment | **default** and example value | description |
| ----------- | --------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `saml` | | `{idpSsoUrl: ..., idpCert: ..., clientCert: ..., issuer: ..., identifierFormat: ..., disableRequestedAuthnContext: ..., groupAttribute: ..., externalGroups: [], requiredGroups: [], attribute: {id: ..., username: ..., email: ...}}` | An object detailing your SAML provider. Refer to the [OneLogin](guides/auth/saml-onelogin.md) and [SAML](guides/auth/saml.md) guides for more details! |
| | `CMD_SAML_IDPSSOURL` | **no default**, `https://idp.example.com/sso` | authentication endpoint of IdP. for details, see [guide](guides/auth/saml-onelogin.md). |
| | `CMD_SAML_IDPCERT` | **no default**, `/path/to/cert.pem` | certificate file path of IdP in PEM format |
| | `CMD_SAML_CLIENTCERT` | **no default**, `/path/to/privatecert.pem` | certificate file path for the client in PEM format (optional) |
| | `CMD_SAML_ISSUER` | **no default** | Issuer to supply to identity provider (optional, default: `serverURL` config)" |
| | `CMD_SAML_DISABLEREQUESTEDAUTHNCONTEXT` | **no default**, `true` or `false` | true to allow any authentication method, false restricts to password authentication (PasswordProtectedTransport) method (default: false) |
| | `CMD_SAML_IDENTIFIERFORMAT` | **`urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress`** | name identifier format (optional, default: `urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress`) |
| | `CMD_SAML_GROUPATTRIBUTE` | **no default**, `memberOf` | attribute name for group list (optional) |
| | `CMD_SAML_REQUIREDGROUPS` | **no default**, `hedgedoc-users` | group names that allowed (use vertical bar to separate) (optional) |
| | `CMD_SAML_EXTERNALGROUPS` | **no default**, `Temporary-staff` | group names that not allowed (use vertical bar to separate) (optional) |
| | `CMD_SAML_ATTRIBUTE_ID` | **no default**, `sAMAccountName` | attribute map for `id` (optional, default: NameID of SAML response) |
| | `CMD_SAML_ATTRIBUTE_USERNAME` | **no default**, `mailNickname` | attribute map for `username` (optional, default: NameID of SAML response) |
| | `CMD_SAML_ATTRIBUTE_EMAIL` | **no default**, `mail` | attribute map for `email` (optional, default: NameID of SAML response if `CMD_SAML_IDENTIFIERFORMAT` is default) |
| | `CMD_SAML_PROVIDERNAME` | **no default**, `My institution` | Optional name to be displayed at login form indicating the SAML provider |
### Twitter Login
| config file | environment | **default** and example value | description |
| ----------- | ---------------------------- | ----------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `twitter` | | `{consumerKey: ..., consumerSecret: ...}` | An object containing the consumer key and secret obtained by the [Twitter developer tools](https://developer.twitter.com/apps). For more details have a look at the [Twitter auth guide](guides/auth/twitter.md) |
| | `CMD_TWITTER_CONSUMERKEY` | **no default** | Twitter API consumer key |
| | `CMD_TWITTER_CONSUMERSECRET` | **no default** | Twitter API consumer secret |
## Upload Storage
These are only relevant when they are also configured in sync with their
`CMD_IMAGE_UPLOAD_TYPE`. Also keep in mind, that `filesystem` is available, so
you don't have to use either of these.
### Amazon S3
| config file | environment | **default** and example value | description |
| --------------- | -------------------------- | ----------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `s3` | | `{ "accessKeyId": "YOUR_S3_ACCESS_KEY_ID", "secretAccessKey": "YOUR_S3_ACCESS_KEY", "region": "YOUR_S3_REGION" }` | When `imageuploadtype` be set to `s3`, you would also need to setup this key, check our [S3 Image Upload Guide](guides/s3-image-upload.md) |
| | `CMD_S3_ACCESS_KEY_ID` | **no default** | AWS access key id |
| | `CMD_S3_SECRET_ACCESS_KEY` | **no default** | AWS secret key |
| | `CMD_S3_REGION` | **no default**, `ap-northeast-1` | AWS S3 region |
| `s3bucket` | `CMD_S3_BUCKET` | **no default** | AWS S3 bucket name |
| | `CMD_S3_ENDPOINT ENV` | **no default** | S3 API endpoint if you don't use AWS name |
| `s3folder` | `CMD_S3_FOLDER` | 'uploads' | Folder where the files will be saved inside the bucket |
| `s3publicFiles` | `CMD_S3_PUBLIC_FILES` | `false` | If se to `true` set public permissions to files when uploading to s3 storage |
### Azure Blob Storage
| config file | environment | **default** and example value | description |
| ----------- | ----------------------------- | ----------------------------- | ------------------------------------------------------------------------- |
| | `CMD_AZURE_CONNECTION_STRING` | **no default** | Azure Blob Storage connection string |
| | `CMD_AZURE_CONTAINER` | **no default** | Azure Blob Storage container name (automatically created if non existent) |
### imgur
| config file | environment | **default** and example value | description |
| ----------- | -------------------- | ------------------------------ | ------------------- |
| | `CMD_IMGUR_CLIENTID` | **no default** | Imgur API client id |
### Minio
| config file | environment | **default** and example value | description |
| ----------- | ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| `minio` | | `{ "accessKey": "YOUR_MINIO_ACCESS_KEY", "secretKey": "YOUR_MINIO_SECRET_KEY", "endpoint": "YOUR_MINIO_HOST", port: 9000, secure: true }` | When `imageUploadType` is set to `minio`, you need to set this key. Also check out our [Minio Image Upload Guide](guides/minio-image-upload.md) |
| | `CMD_MINIO_ACCESS_KEY` | **no default** | Minio access key |
| | `CMD_MINIO_SECRET_KEY` | **no default** | Minio secret key |
| | `CMD_MINIO_ENDPOINT` | **no default**, `minio.example.org` | Address of your Minio endpoint/instance |
| | `CMD_MINIO_PORT` | **no default**, `9000` | Port that is used for your Minio instance |
| | `CMD_MINIO_SECURE` | **no default**, `true` | If set to `true` HTTPS is used for Minio |
### Lutim
| config file | environment | **default** and example value | description |
| ----------- | --------------- | ----------------------------- | --------------------------------------------------------------------------- |
| `lutim` | | `{"url": "YOUR_LUTIM_URL"}` | When `imageUploadType` is set to `lutim`, you can setup the lutim url |
| | `CMD_LUTIM_URL` | **`https://framapic.org/`** | When `CMD_IMAGE_UPLOAD_TYPE` is set to `lutim`, you can setup the lutim url |
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