Minor changes in README.md

README.md

@@ -14,30 +14,872 @@
   <a href="#license">License</a>
 </p>
 
-<img src="doc/screenshot.png" alt="A screenshot of a project being edited in Overleaf Community Edition">
+<img src="doc/screenshot.png" alt="A screenshot of a project being edited in Overleaf Extended Community Edition">
 <p align="center">
-  Figure 1: A screenshot of a project being edited in Overleaf Community Edition.
+  Figure 1: A screenshot of a project being edited in Overleaf Extended Community Edition.
 </p>
 
 ## Community Edition
 
-[Overleaf](https://www.overleaf.com) is an open-source online real-time collaborative LaTeX editor. We run a hosted version at [www.overleaf.com](https://www.overleaf.com), but you can also run your own local version, and contribute to the development of Overleaf.
+[Overleaf](https://www.overleaf.com) is an open-source online real-time collaborative LaTeX editor. Overleaf runs a hosted version at [www.overleaf.com](https://www.overleaf.com), but you can also run your own local version, and contribute to the development of Overleaf.
+
+## Extended Community Edition
+
+The present "extended" version of Overleaf CE includes:
+
+- Sandboxed Compiles with TeX Live image selection
+- LDAP authentication
+- SAML authentication
+- OpenID Connect authentication
+- Real-time track changes and comments
+- Autocomplete of reference keys
+- Symbol Palette
 
 ## Enterprise
 
-If you want help installing and maintaining Overleaf in your lab or workplace, we offer an officially supported version called [Overleaf Server Pro](https://www.overleaf.com/for/enterprises). It also includes more features for security (SSO with LDAP or SAML), administration and collaboration (e.g. tracked changes). [Find out more!](https://www.overleaf.com/for/enterprises)
-
-## Keeping up to date
-
-Sign up to the [mailing list](https://mailchi.mp/overleaf.com/community-edition-and-server-pro) to get updates on Overleaf releases and development.
+If you want help installing and maintaining Overleaf in your lab or workplace, Overleaf offers an officially supported version called [Overleaf Server Pro](https://www.overleaf.com/for/enterprises).
 
 ## Installation
 
-We have detailed installation instructions in the [Overleaf Toolkit](https://github.com/overleaf/toolkit/).
+Detailed installation instructions can be found in the [Overleaf Toolkit](https://github.com/overleaf/toolkit/).
+To run a custom image, add a file named docker-compose.override.yml with the following or similar content into the `overleaf-toolkit/config directory`:
 
-## Upgrading
+```yml
+---
+services:
+    sharelatex:
+        image: sharelatex/sharelatex:ext-ce
+        volumes:
+          - ../config/certs:/overleaf/certs
+```
+Here, the attached volume provides convenient access for the container to the certificates needed for SAML or LDAP authentication.
 
-If you are upgrading from a previous version of Overleaf, please see the [Release Notes section on the Wiki](https://github.com/overleaf/overleaf/wiki#release-notes) for all of the versions between your current version and the version you are upgrading to.
+If you want to build a Docker image of the extended CE based on the upstream v5.4.0 codebase, you can check out the corresponding tag by running:
+```
+git checkout v5.4.0-ext-v1
+```
+After building the image, switch to the latest state of the repository and check the `server-ce/hotfix` directory. If a subdirectory matching your version (e.g., `5.4.0`) exists, build a patched image.
+Alternatively, you can download a prebuilt image from Docker Hub:
+```
+docker pull overleafcep/sharelatex:5.4.0-ext-v1
+```
+Make sure to update the image name in overleaf-toolkit/config/docker-compose.override.yml accordingly.
+
+## Sandboxed Compiles
+
+To enable sandboxed compiles (also known as "Sibling containers"), set the following configuration options in `overleaf-toolkit/config/overleaf.rc`:
+
+```
+SERVER_PRO=true
+SIBLING_CONTAINERS_ENABLED=true
+```
+
+The following environment variables are used to specify which TeX Live images to use for sandboxed compiles:
+
+- `ALL_TEX_LIVE_DOCKER_IMAGES` **(required)**
+    * A comma-separated list of TeX Live images to use. These images will be downloaded or updated.
+      To skip downloading the images, set `SIBLING_CONTAINERS_PULL=false` in `config/overleaf.rc`.
+- `ALL_TEX_LIVE_DOCKER_IMAGE_NAMES`
+    * A comma-separated list of friendly names for the images. If omitted, the version name will be used (e.g., `latest-full`).
+- `TEX_LIVE_DOCKER_IMAGE` **(required)**
+    * The default TeX Live image that will be used for compiling new projects. The environment variable `ALL_TEX_LIVE_DOCKER_IMAGES` must include this image.
+
+Users can select the image for their project in the project menu.
+
+Here is an example where the default TeX Live image is `latest-full` from Docker Hub, but the `TL2024-historic` image can be used for older projects:
+```
+ALL_TEX_LIVE_DOCKER_IMAGES=texlive/texlive:latest-full, texlive/texlive:TL2024-historic
+ALL_TEX_LIVE_DOCKER_IMAGE_NAMES=TeXLive 2025, TeXLive 2024
+TEX_LIVE_DOCKER_IMAGE=texlive/texlive:latest-full
+```
+For additional details refer to
+[Server Pro: Sandboxed Compiles](https://github.com/overleaf/overleaf/wiki/Server-Pro:-Sandboxed-Compiles) and
+[Toolkit: Sandboxed Compiles](https://github.com/overleaf/toolkit/blob/master/doc/sandboxed-compiles.md).
+
+When the compilation takes place in a dedicated container, it is relatively safe to permit running external commands from inside the TeX
+file during compilation. This is required for packages like `minted`. For this purpose, the following environment variable can be used:
+
+- `TEX_COMPILER_EXTRA_FLAGS`
+    * A list of extra flags for TeX compiler. Example: `-shell-escape -file-line-error`
+
+<details>
+<summary><h4>Sample variables.env file</h4></summary>
+
+```
+OVERLEAF_APP_NAME="Our Overleaf Instance"
+
+ENABLED_LINKED_FILE_TYPES=project_file,project_output_file
+
+# Enables Thumbnail generation using ImageMagick
+ENABLE_CONVERSIONS=true
+
+# Disables email confirmation requirement
+EMAIL_CONFIRMATION_DISABLED=true
+
+## Nginx
+# NGINX_WORKER_PROCESSES=4
+# NGINX_WORKER_CONNECTIONS=768
+
+## Set for TLS via nginx-proxy
+# OVERLEAF_BEHIND_PROXY=true
+# OVERLEAF_SECURE_COOKIE=true
+
+OVERLEAF_SITE_URL=http://my-overleaf-instance.com
+OVERLEAF_NAV_TITLE=Our Overleaf Instance
+# OVERLEAF_HEADER_IMAGE_URL=http://somewhere.com/mylogo.png
+OVERLEAF_ADMIN_EMAIL=support@example.com
+
+OVERLEAF_LEFT_FOOTER=[{"text": "Contact your support team", "url": "mailto:support@example.com"}]
+OVERLEAF_RIGHT_FOOTER=[{"text":"Hello, I am on the Right", "url":"https://github.com/yu-i-i/overleaf-cep"}]
+
+OVERLEAF_EMAIL_FROM_ADDRESS=team@example.com
+OVERLEAF_EMAIL_SMTP_HOST=smtp.example.com
+OVERLEAF_EMAIL_SMTP_PORT=587
+OVERLEAF_EMAIL_SMTP_SECURE=false
+# OVERLEAF_EMAIL_SMTP_USER=
+# OVERLEAF_EMAIL_SMTP_PASS=
+# OVERLEAF_EMAIL_SMTP_NAME=
+OVERLEAF_EMAIL_SMTP_LOGGER=false
+OVERLEAF_EMAIL_SMTP_TLS_REJECT_UNAUTH=true
+OVERLEAF_EMAIL_SMTP_IGNORE_TLS=false
+OVERLEAF_CUSTOM_EMAIL_FOOTER=This system is run by department x
+
+OVERLEAF_PROXY_LEARN=true
+NAV_HIDE_POWERED_BY=true
+
+########################
+## Sandboxed Compiles ##
+########################
+
+ALL_TEX_LIVE_DOCKER_IMAGES=texlive/texlive:latest-full, texlive/texlive:TL2023-historic
+ALL_TEX_LIVE_DOCKER_IMAGE_NAMES=TeXLive 2024, TeXLive 2023
+TEX_LIVE_DOCKER_IMAGE=texlive/texlive:latest-full
+TEX_COMPILER_EXTRA_FLAGS=-shell-escape
+```
+</details>
+
+## Authentication Methods
+
+The following authentication methods are supported: local authentication, LDAP authentication, SAML authentication,
+and OpenID Connect (OIDC) authentication. Local authentication is always active. The environment variable `EXTERNAL_AUTH`
+specifies which external authentication methods are activated. The value of this variable is a list. If the list includes `ldap`, `saml`, or `oidc`,
+then LDAP authentication, SAML authentication, and OIDC authentication will be activated, respectively. 
+
+For example: `EXTERNAL_AUTH=ldap saml oidc`
+
+This configuration activates all available authentication methods, although this is rarely necessary.
+
+<details>
+<summary><h3>Local Authentication</h3></summary>
+
+Password of local users stored in the MongoDB database. An admin user can create a new local user. For details, visit the
+[wiki of Overleaf project](https://github.com/overleaf/overleaf/wiki/Creating-and-managing-users).
+
+It is possible to enforce password restrictions on local users:
+
+
+* `OVERLEAF_PASSWORD_VALIDATION_MIN_LENGTH`: The minimum length required
+
+* `OVERLEAF_PASSWORD_VALIDATION_MAX_LENGTH`: The maximum length allowed
+
+* `OVERLEAF_PASSWORD_VALIDATION_PATTERN`: is used to validate password strength
+
+  - `abc123` – password requires 3 letters and 3 numbers and be at least 6 characters long
+  - `aA` – password requires lower and uppercase letters and be at least 2 characters long
+  - `ab$3` – it must contain letters, digits and symbols and be at least 4 characters long
+  - There are 4 groups of characters: letters, UPPERcase letters, digits, symbols. Anything that is neither a letter nor a digit is considered to be a symbol.
+
+</details>
+
+<details>
+<summary><h3>LDAP Authentication</h3></summary>
+
+Internally, Overleaf LDAP uses the [passport-ldapauth](https://github.com/vesse/passport-ldapauth) library. Most of these configuration options are passed through to the `server` config object which is used to configure `passport-ldapauth`. If you are having issues configuring LDAP, it is worth reading the README for `passport-ldapauth` to understand the configuration it expects.
+
+When using Local and LDAP authentication methods, a user enters a `username` and `password` in the login form. If LDAP authentication is enabled, it is attempted first:
+
+1. An LDAP user is searched for in the LDAP directory using the filter defined by `OVERLEAF_LDAP_SEARCH_FILTER` and authenticated.
+2. If authentication is successful, the Overleaf users database is checked for a user with the primary email address that matches the email address of the authenticated LDAP user:
+   - If a matching user is found, the `hashedPassword` field for this user is deleted (if it exists). This ensures that the user can only log in via LDAP authentication in the future.
+   - If no matching user is found, a new Overleaf user is created using the email, first name, and last name retrieved from the LDAP server.
+3. If LDAP authentication fails or is unsuccessful, local authentication is attempted.
+
+#### Environment Variables
+
+- `OVERLEAF_LDAP_URL` **(required)**
+    * URL of the LDAP server.
+
+      - Example: `ldaps://ldap.example.com:636` (LDAP over SSL)
+      - Example: `ldap://ldap.example.com:389` (unencrypted or STARTTLS, if configured).
+
+- `OVERLEAF_LDAP_EMAIL_ATT`
+    * The email attribute returned by the LDAP server, default `mail`. Each LDAP user must have at least one email address.
+      If multiple addresses are provided, only the first one will be used.
+
+- `OVERLEAF_LDAP_FIRST_NAME_ATT`
+    * The property name holding the first name of the user which is used in the application, usually `givenName`.
+
+- `OVERLEAF_LDAP_LAST_NAME_ATT`
+    * The property name holding the family name of the user which is used in the application, usually `sn`.
+
+- `OVERLEAF_LDAP_NAME_ATT`
+    * The property name holding the full name of the user, usually `cn`. If either of the two previous variables is not defined,
+      the first and/or last name of the user is extracted from this variable. Otherwise, it is not used.
+
+- `OVERLEAF_LDAP_PLACEHOLDER`
+    * The placeholder for the login form, defaults to `Username`.
+
+- `OVERLEAF_LDAP_UPDATE_USER_DETAILS_ON_LOGIN`
+    * If set to `true`, updates the LDAP user `first_name` and `last_name` field on login, and turn off the user details form on the `/user/settings`
+      page for LDAP users. Otherwise, details will be fetched only on first login.
+
+- `OVERLEAF_LDAP_BIND_DN`
+    * The distinguished name of the LDAP user that should be used for the LDAP connection
+      (this user should be able to search/list accounts on the LDAP server),
+      e.g., `cn=ldap_reader,dc=example,dc=com`. If not defined, anonymous binding is used.
+
+- `OVERLEAF_LDAP_BIND_CREDENTIALS`
+    * Password for `OVERLEAF_LDAP_BIND_DN`.
+
+- `OVERLEAF_LDAP_BIND_PROPERTY`
+    * Property of the user to bind against the client, defaults to `dn`.
+
+- `OVERLEAF_LDAP_SEARCH_BASE` **(required)**
+    * The base DN from which to search for users. E.g., `ou=people,dc=example,dc=com`.
+
+- `OVERLEAF_LDAP_SEARCH_FILTER`
+    * LDAP search filter with which to find a user. Use the literal '{{username}}' to have the given username be interpolated in for the LDAP search.
+
+      - Example: `(|(uid={{username}})(mail={{username}}))` (user can login with email or with login name).
+      - Example: `(sAMAccountName={{username}})` (Active Directory).
+
+- `OVERLEAF_LDAP_SEARCH_SCOPE`
+    * The scope of the search can be `base`, `one`, or `sub` (default).
+
+- `OVERLEAF_LDAP_SEARCH_ATTRIBUTES`
+    * JSON array of attributes to fetch from the LDAP server, e.g., `["uid", "mail", "givenName", "sn"]`.
+      By default, all attributes are fetched.
+
+- `OVERLEAF_LDAP_STARTTLS`
+    * If `true`, LDAP over TLS is used.
+
+- `OVERLEAF_LDAP_TLS_OPTS_CA_PATH`
+    * Path to the file containing the CA certificate used to verify the LDAP server's SSL/TLS certificate. If there are multiple certificates, then
+      it can be a JSON array of paths to the certificates. The files must be accessible to the docker container.
+
+      - Example (one certificate): `/overleaf/certs/ldap_ca_cert.pem`
+      - Example (multiple certificates): `["/overleaf/certs/ldap_ca_cert1.pem", "/overleaf/certs/ldap_ca_cert2.pem"]`
+
+- `OVERLEAF_LDAP_TLS_OPTS_REJECT_UNAUTH`
+    * If `true`, the server certificate is verified against the list of supplied CAs.
+
+- `OVERLEAF_LDAP_CACHE`
+    * If `true`, then up to 100 credentials at a time will be cached for 5 minutes.
+
+- `OVERLEAF_LDAP_TIMEOUT`
+    * How long the client should let operations live for before timing out, ms (Default: Infinity).
+
+- `OVERLEAF_LDAP_CONNECT_TIMEOUT`
+    * How long the client should wait before timing out on TCP connections, ms (Default: OS default).
+
+- `OVERLEAF_LDAP_IS_ADMIN_ATT` and `OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE`
+    * When both environment variables are set, the login process updates `user.isAdmin = true` if the LDAP profile contains the attribute specified by
+     `OVERLEAF_LDAP_IS_ADMIN_ATT` and its value either matches `OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE` or is an array containing `OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE`,
+      otherwise `user.isAdmin` is set to `false`. If either of these variables is not set, then the admin status is only set to `true` during admin user
+      creation in Launchpad.
+
+The following five variables are used to configure how user contacts are retrieved from the LDAP server.
+
+- `OVERLEAF_LDAP_CONTACTS_FILTER`
+    * The filter used to search for users in the LDAP server to be loaded into contacts. The placeholder '{{userProperty}}' within the filter is replaced with the value of
+    the property specified by `OVERLEAF_LDAP_CONTACTS_PROPERTY` from the LDAP user initiating the search. If not defined, no users are retrieved from the LDAP server into contacts.
+
+- `OVERLEAF_LDAP_CONTACTS_SEARCH_BASE`
+    * Specifies the base DN from which to start searching for the contacts. Defaults to `OVERLEAF_LDAP_SEARCH_BASE`.
+
+- `OVERLEAF_LDAP_CONTACTS_SEARCH_SCOPE`
+    * The scope of the search can be `base`, `one`, or `sub` (default).
+
+- `OVERLEAF_LDAP_CONTACTS_PROPERTY`
+    * Specifies the property of the user object that will replace the '{{userProperty}}' placeholder in the `OVERLEAF_LDAP_CONTACTS_FILTER`.
+
+- `OVERLEAF_LDAP_CONTACTS_NON_LDAP_VALUE`
+    * Specifies the value of the `OVERLEAF_LDAP_CONTACTS_PROPERTY` if the search is initiated by a non-LDAP user. If this variable is not defined, the resulting filter
+      will match nothing. The value `*` can be used as a wildcard.
+
+<details>
+<summary><h5>Example</h5></summary>
+
+    OVERLEAF_LDAP_CONTACTS_FILTER=(gidNumber={{userProperty}})
+    OVERLEAF_LDAP_CONTACTS_PROPERTY=gidNumber
+    OVERLEAF_LDAP_CONTACTS_NON_LDAP_VALUE=1000
+
+The above example results in loading into the contacts of the current LDAP user all LDAP users who have the same UNIX `gid`. Non-LDAP users will have all LDAP users with UNIX `gid=1000` in their contacts.
+
+</details>
+
+
+<details>
+<summary><h4>Sample variables.env file</h4></summary>
+
+```
+OVERLEAF_APP_NAME="Our Overleaf Instance"
+
+ENABLED_LINKED_FILE_TYPES=project_file,project_output_file
+
+# Enables Thumbnail generation using ImageMagick
+ENABLE_CONVERSIONS=true
+
+# Disables email confirmation requirement
+EMAIL_CONFIRMATION_DISABLED=true
+
+## Nginx
+# NGINX_WORKER_PROCESSES=4
+# NGINX_WORKER_CONNECTIONS=768
+
+## Set for TLS via nginx-proxy
+# OVERLEAF_BEHIND_PROXY=true
+# OVERLEAF_SECURE_COOKIE=true
+
+OVERLEAF_SITE_URL=http://my-overleaf-instance.com
+OVERLEAF_NAV_TITLE=Our Overleaf Instance
+# OVERLEAF_HEADER_IMAGE_URL=http://somewhere.com/mylogo.png
+OVERLEAF_ADMIN_EMAIL=support@example.com
+
+OVERLEAF_LEFT_FOOTER=[{"text": "Contact your support team", "url": "mailto:support@example.com"}]
+OVERLEAF_RIGHT_FOOTER=[{"text":"Hello, I am on the Right", "url":"https://github.com/yu-i-i/overleaf-cep"}]
+
+OVERLEAF_EMAIL_FROM_ADDRESS=team@example.com
+OVERLEAF_EMAIL_SMTP_HOST=smtp.example.com
+OVERLEAF_EMAIL_SMTP_PORT=587
+OVERLEAF_EMAIL_SMTP_SECURE=false
+# OVERLEAF_EMAIL_SMTP_USER=
+# OVERLEAF_EMAIL_SMTP_PASS=
+# OVERLEAF_EMAIL_SMTP_NAME=
+OVERLEAF_EMAIL_SMTP_LOGGER=false
+OVERLEAF_EMAIL_SMTP_TLS_REJECT_UNAUTH=true
+OVERLEAF_EMAIL_SMTP_IGNORE_TLS=false
+OVERLEAF_CUSTOM_EMAIL_FOOTER=This system is run by department x
+
+OVERLEAF_PROXY_LEARN=true
+NAV_HIDE_POWERED_BY=true
+
+#################
+## LDAP for CE ##
+#################
+
+EXTERNAL_AUTH=ldap
+OVERLEAF_LDAP_URL=ldap://ldap.example.com:389
+OVERLEAF_LDAP_STARTTLS=true
+OVERLEAF_LDAP_TLS_OPTS_CA_PATH=/overleaf/certs/ldap_ca_cert.pem
+OVERLEAF_LDAP_SEARCH_BASE=ou=people,dc=example,dc=com
+OVERLEAF_LDAP_SEARCH_FILTER=(|(uid={{username}})(mail={{username}}))
+OVERLEAF_LDAP_BIND_DN=cn=ldap_reader,dc=example,dc=com
+OVERLEAF_LDAP_BIND_CREDENTIALS=GoodNewsEveryone
+OVERLEAF_LDAP_EMAIL_ATT=mail
+OVERLEAF_LDAP_FIRST_NAME_ATT=givenName
+OVERLEAF_LDAP_LAST_NAME_ATT=sn
+# OVERLEAF_LDAP_NAME_ATT=cn
+OVERLEAF_LDAP_SEARCH_ATTRIBUTES=["uid", "sn", "givenName", "mail"]
+
+OVERLEAF_LDAP_UPDATE_USER_DETAILS_ON_LOGIN=true
+
+OVERLEAF_LDAP_PLACEHOLDER='Username or email address'
+
+OVERLEAF_LDAP_IS_ADMIN_ATT=mail
+OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE=admin@example.com
+
+OVERLEAF_LDAP_CONTACTS_FILTER=(gidNumber={{userProperty}})
+OVERLEAF_LDAP_CONTACTS_PROPERTY=gidNumber
+OVERLEAF_LDAP_CONTACTS_NON_LDAP_VALUE='*'
+```
+</details>
+
+<details>
+<summary><i>Deprecated variables</i></summary>
+
+**These variables will be removed soon**, use `OVERLEAF_LDAP_IS_ADMIN_ATT` and `OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE` instead.
+
+The following variables are used to determine if the user has admin rights.
+Please note: the user gains admin status if the search result is not empty, not when the user is explicitly included in the search results.
+
+- `OVERLEAF_LDAP_ADMIN_SEARCH_BASE`
+    * Specifies the base DN from which to start searching for the admin group. If this variable is defined,
+    `OVERLEAF_LDAP_ADMIN_SEARCH_FILTER` must also be defined for the search to function properly.
+
+- `OVERLEAF_LDAP_ADMIN_SEARCH_FILTER`
+    * Defines the LDAP search filter used to identify the admin group. The placeholder `{{dn}}` within the filter
+      is replaced with the value of the property specified by `OVERLEAF_LDAP_ADMIN_DN_PROPERTY`. The placeholder `{{username}}` is also supported.
+
+- `OVERLEAF_LDAP_ADMIN_DN_PROPERTY`
+    * Specifies the property of the user object that will replace the '{{dn}}' placeholder
+      in the `OVERLEAF_LDAP_ADMIN_SEARCH_FILTER`, defaults to `dn`.
+
+- `OVERLEAF_LDAP_ADMIN_SEARCH_SCOPE`
+    * The scope of the LDAP search can be `base`, `one`, or `sub` (default)
+
+<details>
+<summary><h5>Example</h5></summary>
+
+In the following example admins are members of a group `admins`, the objectClass of the entry `admins` is `groupOfNames`:
+
+    OVERLEAF_LDAP_ADMIN_SEARCH_BASE='cn=admins,ou=group,dc=example,dc=com'
+    OVERLEAF_LDAP_ADMIN_SEARCH_FILTER='(member={{dn}})'
+
+In the following example admins are members of a group 'admins', the objectClass of the entry `admins` is `posixGroup`:
+
+    OVERLEAF_LDAP_ADMIN_SEARCH_BASE='cn=admins,ou=group,dc=example,dc=com'
+    OVERLEAF_LDAP_ADMIN_SEARCH_FILTER='(memberUid={{username}})'
+
+In the following example admins are users with UNIX gid=1234:
+
+    OVERLEAF_LDAP_ADMIN_SEARCH_BASE='ou=people,dc=example,dc=com'
+    OVERLEAF_LDAP_ADMIN_SEARCH_FILTER='(&(gidNumber=1234)(uid={{username}}))'
+
+In the following example admin is the user with `uid=someuser`:
+
+    OVERLEAF_LDAP_ADMIN_SEARCH_BASE='ou=people,dc=example,dc=com'
+    OVERLEAF_LDAP_ADMIN_SEARCH_FILTER='(&(uid=someuser)(uid={{username}}))'
+
+The filter
+
+    OVERLEAF_LDAP_ADMIN_SEARCH_FILTER='(uid=someuser)'
+
+where `someuser` is the uid of an existing user, will always produce a non-empty search result.
+As a result, **every user will be granted admin rights**, not just `someuser`, as one might expect.
+
+</details>
+</details>
+</details>
+
+<details>
+<summary><h3>SAML Authentication</h3></summary>
+
+Internally, Overleaf SAML module uses the [passport-saml](https://github.com/node-saml/passport-saml) library, most of the following
+configuration options are passed through to `passport-saml`. If you are having issues configuring SAML, it is worth reading the README
+for `passport-saml` to get a feel for the configuration it expects.
+
+When using the SAML authentication method, a user is redirected to the Identity Provider (IdP) authentication site.
+If the IdP successfully authenticates the user, the Overleaf users database is checked for a record containing a `samlIdentifiers` field structured as follows:
+
+```
+samlIdentifiers: [
+  {
+    externalUserId: "...",
+    providerId: "1",
+    userIdAttribute: "..."
+  }
+]
+```
+The `externalUserId` must match the value of the property specified by `userIdAttribute` in the user profile returned by the IdP server.
+
+If no matching record is found, the database is searched for a user with the primary email address matching the email in the IdP user profile:
+
+- If such a user is found, the `hashedPassword` field is deleted to disable local authentication, and the `samlIdentifiers` field is added.
+- If no matching user is found, a new user is created with the email address and `samlIdentifiers` from the IdP profile.
+
+**Note:** Currently, only one SAML IdP is supported. The `providerId` field in `samlIdentifiers` is fixed to `'1'`.
+
+#### Environment Variables
+
+- `OVERLEAF_SAML_IDENTITY_SERVICE_NAME`
+    * Display name for the identity service, used on the login page (default: `Log in with SAML IdP`).
+
+- `OVERLEAF_SAML_USER_ID_FIELD`
+    * The value of this attribute will be used by Overleaf as the external user ID, defaults to `nameID`.
+
+- `OVERLEAF_SAML_EMAIL_FIELD`
+    * Name of the Email field in user profile, defaults to `nameID`.
+
+- `OVERLEAF_SAML_FIRST_NAME_FIELD`
+    * Name of the firstName field in user profile, defaults to `givenName`.
+
+- `OVERLEAF_SAML_LAST_NAME_FIELD`
+    * Name of the lastName field in user profile, defaults to `lastName`
+
+- `OVERLEAF_SAML_UPDATE_USER_DETAILS_ON_LOGIN`
+    * If set to `true`, updates the user `first_name` and `last_name` field on login,
+      and turn off the user details form on `/user/settings` page.
+
+- `OVERLEAF_SAML_ENTRYPOINT` **(required)**
+    * Entrypoint URL for the SAML identity service.
+
+      - Example: `https://idp.example.com/simplesaml/saml2/idp/SSOService.php`
+      - Azure Example: `https://login.microsoftonline.com/8b26b46a-6dd3-45c7-a104-f883f4db1f6b/saml2`
+
+- `OVERLEAF_SAML_ISSUER` **(required)**
+    * The Issuer name.
+
+- `OVERLEAF_SAML_AUDIENCE`
+    * Expected saml response Audience, defaults to value of `OVERLEAF_SAML_ISSUER`.
+
+- `OVERLEAF_SAML_IDP_CERT` **(required)**
+    * Path to a file containing the Identity Provider's public certificate, used to validate the signatures of incoming SAML responses. If the Identity Provider has multiple valid signing certificates, then
+      it can be a JSON array of paths to the certificates.
+
+        - Example (one certificate): `/overleaf/certs/idp_cert.pem`
+        - Example (multiple certificates): `["/overleaf/certs/idp_cert.pem", "/overleaf/certs/idp_cert_old.pem"]`
+
+- `OVERLEAF_SAML_PUBLIC_CERT`
+    * Path to a file containing public signing certificate used to embed in auth requests in order for the IdP to validate the signatures of the incoming SAML Request. It's required when setting up the [metadata endpoint](#metadata-for-the-identity-provider)
+      when the strategy is configured with a `OVERLEAF_SAML_PRIVATE_KEY`. A JSON array of paths to certificates can be provided to support certificate rotation. When supplying an array of certificates, the first entry in the array should match the
+      current `OVERLEAF_SAML_PRIVATE_KEY`. Additional entries in the array can be used to publish upcoming certificates to IdPs before changing the `OVERLEAF_SAML_PRIVATE_KEY`.
+
+- `OVERLEAF_SAML_PRIVATE_KEY`
+    * Path to a file containing a PEM-formatted private key matching the `OVERLEAF_SAML_PUBLIC_CERT` used to sign auth requests sent by passport-saml.
+
+- `OVERLEAF_SAML_DECRYPTION_CERT`
+    *  Path to a file containing public certificate, used for the [metadata endpoint](#metadata-for-the-identity-provider).
+
+- `OVERLEAF_SAML_DECRYPTION_PVK`
+    * Path to a file containing private key  matching the `OVERLEAF_SAML_DECRYPTION_CERT` that will be used to attempt to decrypt any encrypted assertions that are received.
+
+- `OVERLEAF_SAML_SIGNATURE_ALGORITHM`
+    * Optionally set the signature algorithm for signing requests,
+          valid values are 'sha1' (default), 'sha256' (prefered), 'sha512' (most secure, check if your IdP supports it).
+
+- `OVERLEAF_SAML_ADDITIONAL_PARAMS`
+    * JSON dictionary of additional query params to add to all requests.
+
+- `OVERLEAF_SAML_ADDITIONAL_AUTHORIZE_PARAMS`
+    * JSON dictionary of additional query params to add to 'authorize' requests.
+
+        - Example: `{"some_key": "some_value"}`
+
+- `OVERLEAF_SAML_IDENTIFIER_FORMAT`
+    * Name identifier format to request from the identity provider (default: `urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress`).
+      If using `urn:oasis:names:tc:SAML:2.0:nameid-format:persistent`, ensure the `OVERLEAF_SAML_EMAIL_FIELD` envirionment variable is defined.
+      If `urn:oasis:names:tc:SAML:2.0:nameid-format:transient` is required, you must also define the `OVERLEAF_SAML_ID_FIELD` environment variable,
+      which can, for example, be set to the user's email address.
+
+- `OVERLEAF_SAML_ACCEPTED_CLOCK_SKEW_MS`
+    * Time in milliseconds of skew that is acceptable between client and server when checking OnBefore and NotOnOrAfter assertion
+          condition validity timestamps. Setting to -1 will disable checking these conditions entirely. Default is 0.
+
+- `OVERLEAF_SAML_ATTRIBUTE_CONSUMING_SERVICE_INDEX`
+    * `AttributeConsumingServiceIndex` attribute to add to AuthnRequest to instruct the IdP which attribute set to attach
+          to the response ([link](http://blog.aniljohn.com/2014/01/data-minimization-front-channel-saml-attribute-requests.html)).
+
+- `OVERLEAF_SAML_AUTHN_CONTEXT`
+    * JSON array of name identifier format values to request auth context. Default: `["urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport"]`.
+
+- `OVERLEAF_SAML_FORCE_AUTHN`
+    * If `true`, the initial SAML request from the service provider specifies that the IdP should force re-authentication of the user,
+          even if they possess a valid session.
+
+- `OVERLEAF_SAML_DISABLE_REQUESTED_AUTHN_CONTEXT`
+    * If `true`, do not request a specific auth context. For example, you can this this to `true` to allow additional contexts such as password-less logins (`urn:oasis:names:tc:SAML:2.0:ac:classes:X509`). Support for additional contexts is dependant on your IdP.
+
+- `OVERLEAF_SAML_AUTHN_REQUEST_BINDING`
+    * If set to `HTTP-POST`, will request authentication from IdP via HTTP POST binding, otherwise defaults to HTTP-Redirect.
+
+- `OVERLEAF_SAML_VALIDATE_IN_RESPONSE_TO`
+    * If `always`, then InResponseTo will be validated from incoming SAML responses.
+    * If `never`, then InResponseTo  won't be validated (default).
+    * If `ifPresent`, then InResponseTo will only be validated if present in the incoming SAML response.
+
+- `OVERLEAF_SAML_WANT_ASSERTIONS_SIGNED` and `OVERLEAF_SAML_WANT_AUTHN_RESPONSE_SIGNED`
+    * When set to `true` (default), Overleaf expects the SAML Assertions, respectively the entire SAML Authentication Response, to be signed by the IdP.
+      When both options are `false`, at least one of the assertions or the response must be signed.
+
+- `OVERLEAF_SAML_REQUEST_ID_EXPIRATION_PERIOD_MS`
+    * Defines the expiration time when a Request ID generated for a SAML request will not be valid if seen
+          in a SAML response in the `InResponseTo` field. Default: 28800000 (8 hours).
+
+- `OVERLEAF_SAML_LOGOUT_URL`
+    * base address to call with logout requests (default: `entryPoint`).
+
+      - Example: `https://idp.example.com/simplesaml/saml2/idp/SingleLogoutService.php`
+
+- `OVERLEAF_SAML_ADDITIONAL_LOGOUT_PARAMS`
+    * JSON dictionary of additional query params to add to 'logout' requests.
+
+- `OVERLEAF_SAML_IS_ADMIN_FIELD` and `OVERLEAF_SAML_IS_ADMIN_FIELD_VALUE`
+    * When both environment variables are set, the login process updates `user.isAdmin = true` if the profile returned by the SAML IdP contains the attribute specified by
+     `OVERLEAF_SAML_IS_ADMIN_FIELD` and its value either matches `OVERLEAF_SAML_IS_ADMIN_FIELD_VALUE` or is an array containing `OVERLEAF_SAML_IS_ADMIN_FIELD_VALUE`,
+      otherwise `user.isAdmin` is set to `false`. If either of these variables is not set, then the admin status is only set to `true` during admin user
+      creation in Launchpad.
+
+#### Metadata for the Identity Provider
+
+The current version of Overleaf CE includes and endpoint to retrieve Service Provider Metadata: `http://my-overleaf-instance.com/saml/meta`
+
+The Identity Provider will need to be configured to recognize the Overleaf server as a "Service Provider". Consult the documentation for your SAML server for instructions on how to do this.
+
+Below is an example of appropriate Service Provider metadata:
+
+<details>
+<summary><h5>ol-meta.xml</h5></summary>
+
+```
+<?xml version="1.0"?>
+<EntityDescriptor xmlns="urn:oasis:names:tc:SAML:2.0:metadata"
+                  xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
+                  entityID="MyOverleaf"
+                  ID="_b508c83b7dda452f5b269383fb391107116f8f57">
+  <SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol" AuthnRequestsSigned="true" WantAssertionsSigned="true">
+    <KeyDescriptor use="signing">
+      <ds:KeyInfo>
+        <ds:X509Data>
+          <ds:X509Certificate>MII...
+[skipped]
+</ds:X509Certificate>
+        </ds:X509Data>
+      </ds:KeyInfo>
+    </KeyDescriptor>
+    <KeyDescriptor use="encryption">
+      <ds:KeyInfo>
+        <ds:X509Data>
+          <ds:X509Certificate>MII...
+[skipped]
+</ds:X509Certificate>
+        </ds:X509Data>
+      </ds:KeyInfo>
+      <EncryptionMethod Algorithm="http://www.w3.org/2009/xmlenc11#aes256-gcm"/>
+      <EncryptionMethod Algorithm="http://www.w3.org/2009/xmlenc11#aes128-gcm"/>
+      <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes256-cbc"/>
+      <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc"/>
+    </KeyDescriptor>
+    <SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
+                         Location="https://my-overleaf-instance.com/saml/logout/callback"/>
+    <NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress</NameIDFormat>
+    <AssertionConsumerService index="1"
+                              isDefault="true"
+                              Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
+                              Location="https://my-overleaf-instance.com/saml/login/callback"/>
+  </SPSSODescriptor>
+</EntityDescriptor>
+
+```
+</details>
+
+Note the certificates, `AssertionConsumerService.Location`, `SingleLogoutService.Location` and `EntityDescriptor.entityID`
+and set as appropriate in your IdP configuration, or send the metadata file to the IdP admin.
+
+<details>
+<summary><h4>Sample variables.env file</h4></summary>
+
+```
+OVERLEAF_APP_NAME="Our Overleaf Instance"
+
+ENABLED_LINKED_FILE_TYPES=project_file,project_output_file
+
+# Enables Thumbnail generation using ImageMagick
+ENABLE_CONVERSIONS=true
+
+# Disables email confirmation requirement
+EMAIL_CONFIRMATION_DISABLED=true
+
+## Nginx
+# NGINX_WORKER_PROCESSES=4
+# NGINX_WORKER_CONNECTIONS=768
+
+## Set for TLS via nginx-proxy
+# OVERLEAF_BEHIND_PROXY=true
+# OVERLEAF_SECURE_COOKIE=true
+
+OVERLEAF_SITE_URL=http://my-overleaf-instance.com
+OVERLEAF_NAV_TITLE=Our Overleaf Instance
+# OVERLEAF_HEADER_IMAGE_URL=http://somewhere.com/mylogo.png
+OVERLEAF_ADMIN_EMAIL=support@example.com
+
+OVERLEAF_LEFT_FOOTER=[{"text": "Contact your support team", "url": "mailto:support@example.com"}]
+OVERLEAF_RIGHT_FOOTER=[{"text":"Hello, I am on the Right", "url":"https://github.com/yu-i-i/overleaf-cep"}]
+
+OVERLEAF_EMAIL_FROM_ADDRESS=team@example.com
+OVERLEAF_EMAIL_SMTP_HOST=smtp.example.com
+OVERLEAF_EMAIL_SMTP_PORT=587
+OVERLEAF_EMAIL_SMTP_SECURE=false
+# OVERLEAF_EMAIL_SMTP_USER=
+# OVERLEAF_EMAIL_SMTP_PASS=
+# OVERLEAF_EMAIL_SMTP_NAME=
+OVERLEAF_EMAIL_SMTP_LOGGER=false
+OVERLEAF_EMAIL_SMTP_TLS_REJECT_UNAUTH=true
+OVERLEAF_EMAIL_SMTP_IGNORE_TLS=false
+OVERLEAF_CUSTOM_EMAIL_FOOTER=This system is run by department x
+
+OVERLEAF_PROXY_LEARN=true
+NAV_HIDE_POWERED_BY=true
+
+#################
+## SAML for CE ##
+#################
+
+EXTERNAL_AUTH=saml
+OVERLEAF_SAML_IDENTITY_SERVICE_NAME='Log in with My IdP'
+OVERLEAF_SAML_EMAIL_FIELD=mail
+OVERLEAF_SAML_FIRST_NAME_FIELD=givenName
+OVERLEAF_SAML_LAST_NAME_FIELD=sn
+OVERLEAF_SAML_ENTRYPOINT=https://idp.example.com/simplesamlphp/saml2/idp/SSOService.php
+OVERLEAF_SAML_CALLBACK_URL=https://my-overleaf-instance.com/saml/login/callback
+OVERLEAF_SAML_LOGOUT_URL=https://idp.example.com/simplesamlphp/saml2/idp/SingleLogoutService.php
+OVERLEAF_SAML_LOGOUT_CALLBACK_URL=https://my-overleaf-instance.com/saml/logout/callback
+OVERLEAF_SAML_ISSUER=MyOverleaf
+OVERLEAF_SAML_IDP_CERT=/overleaf/certs/idp_cert.pem
+OVERLEAF_SAML_PUBLIC_CERT=/overleaf/certs/myol_cert.pem
+OVERLEAF_SAML_PRIVATE_KEY=/overleaf/certs/myol_key.pem
+OVERLEAF_SAML_DECRYPTION_CERT=/overleaf/certs/myol_decr_cert.pem
+OVERLEAF_SAML_DECRYPTION_PVK=/overleaf/certs/myol_decr_key.pem
+OVERLEAF_SAML_IS_ADMIN_FIELD=mail
+OVERLEAF_SAML_IS_ADMIN_FIELD_VALUE=overleaf.admin@example.com
+```
+</details>
+</details>
+
+<details>
+<summary><h3>OIDC Authentication</h3></summary>
+
+Internally, Overleaf OIDC module uses the [passport-openidconnect](https://github.com/jaredhanson/passport-openidconnect) library.
+If you are having issues configuring OpenID Connect, it is worth reading the README for `passport-openidconnect` to get a feel for the configuration it expects.
+
+
+When using the OIDC authentication method, a user is redirected to the Identity Provider (IdP) authentication site.
+If the IdP successfully authenticates the user, the Overleaf users database is checked for a record containing a `thirdPartyIdentifiers` field structured as follows:
+
+```
+thirdPartyIdentifiers: [
+  {
+    externalUserId: "...",
+    externalData: null,
+    providerId: "..."
+  }
+]
+```
+
+The `externalUserId` must match the user ID in the profile returned by the IdP server (see the `OVERLEAF_OIDC_USER_ID_FIELD` environment variable), and `providerId`
+must match the ID of the OIDC provider (see the `OVERLEAF_OIDC_PROVIDER_ID`).
+
+If no matching record is found, the database is searched for a user with the primary email address matching the email in the IdP user profile:
+- If such a user is found, the `thirdPartyIdentifiers` field is updated.
+- If no matching user is found, a new user is created with the email address and `thirdPartyIdentifiers` from the IdP profile.
+
+In both cases, the user is said to be 'linked' to the external OIDC user. The user can be unlinked from the OIDC provider on the `/user/settings` page.
+
+
+#### Environment Variables
+
+The values of the following five required variables can be found using `.well-known/openid-configuration` endpoint of your OpenID Provider (OP).
+
+- `OVERLEAF_OIDC_ISSUER` **(required)**
+
+- `OVERLEAF_OIDC_AUTHORIZATION_URL` **(required)**
+
+- `OVERLEAF_OIDC_TOKEN_URL` **(required)**
+
+- `OVERLEAF_OIDC_USER_INFO_URL` **(required)**
+
+- `OVERLEAF_OIDC_LOGOUT_URL` **(required)**
+
+The values of the following two required variables will be provided by the admin of your OP
+
+- `OVERLEAF_OIDC_CLIENT_ID` **(required)**
+
+- `OVERLEAF_OIDC_CLIENT_SECRET` **(required)**
+
+- `OVERLEAF_OIDC_SCOPE`
+    * Default: `openid profile email`
+
+- `OVERLEAF_OIDC_PROVIDER_ID`
+    * Arbitrary ID of the OP, defaults to `oidc`.
+
+- `OVERLEAF_OIDC_PROVIDER_NAME`
+    * The name of the OP, used in the `Linked Accounts` section of the `/user/settings` page, defaults to `OIDC Provider`.
+
+- `OVERLEAF_OIDC_IDENTITY_SERVICE_NAME`
+    * Display name for the identity service, used on the login page (default: `Log in with $OVERLEAF_OIDC_PROVIDER_NAME`).
+
+- `OVERLEAF_OIDC_PROVIDER_DESCRIPTION`
+    * Description of OP, used in the `Linked Accounts` section (default: `Log in with $OVERLEAF_OIDC_PROVIDER_NAME`).
+
+- `OVERLEAF_OIDC_PROVIDER_INFO_LINK`
+    * `Learn more` URL in the OP description, default: no `Learn more` link in the description.
+
+- `OVERLEAF_OIDC_PROVIDER_HIDE_NOT_LINKED`
+    * Do not show OP on the `/user/settings` page, if the user's account is not linked with the OP, default `false`.
+
+- `OVERLEAF_OIDC_USER_ID_FIELD`
+    * The value of this attribute will be used by Overleaf as the external user ID, defaults to `id`.
+      Other possible reasonable values are `email` and `username` (corresponding to `preferred_username` OIDC claim).
+
+- `OVERLEAF_OIDC_UPDATE_USER_DETAILS_ON_LOGIN`
+    * If set to `true`, updates the user `first_name` and `last_name` field on login,
+      and disables the user details form on `/user/settings` page.
+
+- `OVERLEAF_OIDC_IS_ADMIN_FIELD` and `OVERLEAF_OIDC_IS_ADMIN_FIELD_VALUE`
+    * When both environment variables are set, the login process updates `user.isAdmin = true` if the profile returned by the OP contains the attribute specified by
+      `OVERLEAF_OIDC_IS_ADMIN_FIELD` and its value matches `OVERLEAF_OIDC_IS_ADMIN_FIELD_VALUE`, otherwise `user.isAdmin` is set to `false`.
+      If `OVERLEAF_OIDC_IS_ADMIN_FIELD` is `email` then the value of the attribute `emails[0].value` is used for match checking.
+
+The redirect URL for your OpenID Provider is `https://my-overleaf-instance.com/oidc/login/callback`.
+
+<details>
+<summary><h4>Sample variables.env file</h4></summary>
+
+```
+OVERLEAF_APP_NAME="Our Overleaf Instance"
+
+ENABLED_LINKED_FILE_TYPES=project_file,project_output_file
+
+# Enables Thumbnail generation using ImageMagick
+ENABLE_CONVERSIONS=true
+
+# Disables email confirmation requirement
+EMAIL_CONFIRMATION_DISABLED=true
+
+## Nginx
+# NGINX_WORKER_PROCESSES=4
+# NGINX_WORKER_CONNECTIONS=768
+
+## Set for TLS via nginx-proxy
+# OVERLEAF_BEHIND_PROXY=true
+# OVERLEAF_SECURE_COOKIE=true
+
+OVERLEAF_SITE_URL=http://my-overleaf-instance.com
+OVERLEAF_NAV_TITLE=Our Overleaf Instance
+# OVERLEAF_HEADER_IMAGE_URL=http://somewhere.com/mylogo.png
+OVERLEAF_ADMIN_EMAIL=support@example.com
+
+OVERLEAF_LEFT_FOOTER=[{"text": "Contact your support team", "url": "mailto:support@example.com"}]
+OVERLEAF_RIGHT_FOOTER=[{"text":"Hello, I am on the Right", "url":"https://github.com/yu-i-i/overleaf-cep"}]
+
+OVERLEAF_EMAIL_FROM_ADDRESS=team@example.com
+OVERLEAF_EMAIL_SMTP_HOST=smtp.example.com
+OVERLEAF_EMAIL_SMTP_PORT=587
+OVERLEAF_EMAIL_SMTP_SECURE=false
+# OVERLEAF_EMAIL_SMTP_USER=
+# OVERLEAF_EMAIL_SMTP_PASS=
+# OVERLEAF_EMAIL_SMTP_NAME=
+OVERLEAF_EMAIL_SMTP_LOGGER=false
+OVERLEAF_EMAIL_SMTP_TLS_REJECT_UNAUTH=true
+OVERLEAF_EMAIL_SMTP_IGNORE_TLS=false
+OVERLEAF_CUSTOM_EMAIL_FOOTER=This system is run by department x
+
+OVERLEAF_PROXY_LEARN=true
+NAV_HIDE_POWERED_BY=true
+
+#################
+## OIDC for CE ##
+#################
+
+EXTERNAL_AUTH=oidc
+
+OVERLEAF_OIDC_PROVIDER_ID=oidc
+OVERLEAF_OIDC_ISSUER=https://keycloak.provider.com/realms/example
+OVERLEAF_OIDC_AUTHORIZATION_URL=https://keycloak.provider.com/realms/example/protocol/openid-connect/auth
+OVERLEAF_OIDC_TOKEN_URL=https://keycloak.provider.com/realms/example/protocol/openid-connect/token
+OVERLEAF_OIDC_USER_INFO_URL=https://keycloak.provider.com/realms/example/protocol/openid-connect/userinfo
+OVERLEAF_OIDC_LOGOUT_URL=https://keycloak.provider.com/realms/example/protocol/openid-connect/logout
+OVERLEAF_OIDC_CLIENT_ID=Overleaf-OIDC
+OVERLEAF_OIDC_CLIENT_SECRET=DoNotUseThisATGgaAcTgCcATgGATTACAagGtTCaGcGTAG
+OVERLEAF_OIDC_IDENTITY_SERVICE_NAME='Log in with Keycloak OIDC Provider'
+OVERLEAF_OIDC_PROVIDER_NAME=OIDC Keycloak Provider
+OVERLEAF_OIDC_PROVIDER_INFO_LINK=https://openid.net
+OVERLEAF_OIDC_IS_ADMIN_FIELD=email
+OVERLEAF_OIDC_IS_ADMIN_FIELD_VALUE=overleaf.admin@example.com
+OVERLEAF_OIDC_UPDATE_USER_DETAILS_ON_LOGIN=false
+```
+</details>
+</details>
 
 ## Overleaf Docker Image
 
@@ -60,14 +902,11 @@ in which to run the Overleaf services. Baseimage uses the `runit` service
 manager to manage services, and we add our init-scripts from the `server-ce/runit`
 folder.
 
-
-## Contributing
-
-Please see the [CONTRIBUTING](CONTRIBUTING.md) file for information on contributing to the development of Overleaf.
-
 ## Authors
 
 [The Overleaf Team](https://www.overleaf.com/about)
+<br>
+Extensions for CE by: [yu-i-i](https://github.com/yu-i-i/overleaf-cep)
 
 ## License
 

develop/README.md

@@ -77,6 +77,7 @@ each service:
 | `filestore`        | 9235 |
 | `notifications`    | 9236 |
 | `real-time`        | 9237 |
+| `references`       | 9238 |
 | `history-v1`       | 9239 |
 | `project-history`  | 9240 |
 

develop/dev.env

@@ -13,6 +13,7 @@ NOTIFICATIONS_HOST=notifications
 PROJECT_HISTORY_HOST=project-history
 REALTIME_HOST=real-time
 REDIS_HOST=redis
+REFERENCES_HOST=references
 SESSION_SECRET=foo
 WEBPACK_HOST=webpack
 WEB_API_PASSWORD=overleaf

develop/docker-compose.dev.yml

@@ -112,6 +112,17 @@ services:
       - ../services/real-time/app.js:/overleaf/services/real-time/app.js
       - ../services/real-time/config:/overleaf/services/real-time/config
 
+  references:
+    command: ["node", "--watch", "app.js"]
+    environment:
+      - NODE_OPTIONS=--inspect=0.0.0.0:9229
+    ports:
+      - "127.0.0.1:9238:9229"
+    volumes:
+      - ../services/references/app:/overleaf/services/references/app
+      - ../services/references/config:/overleaf/services/references/config
+      - ../services/references/app.js:/overleaf/services/references/app.js
+
   web:
     command: ["node", "--watch", "app.js", "--watch-locales"]
     environment:

develop/docker-compose.yml

@@ -131,6 +131,13 @@ services:
     volumes:
       - redis-data:/data
 
+  references:
+    build:
+      context: ..
+      dockerfile: services/references/Dockerfile
+    env_file:
+      - dev.env
+
   web:
     build:
       context: ..
@@ -161,6 +168,7 @@ services:
       - notifications
       - project-history
       - real-time
+      - references
 
   webpack:
     build:

patches/@node-saml+node-saml+4.0.5.patch

@@ -0,0 +1,23 @@
+diff --git a/node_modules/@node-saml/node-saml/lib/saml.js b/node_modules/@node-saml/node-saml/lib/saml.js
+index fba15b9..a5778cb 100644
+--- a/node_modules/@node-saml/node-saml/lib/saml.js
++++ b/node_modules/@node-saml/node-saml/lib/saml.js
+@@ -336,7 +336,8 @@ class SAML {
+         const requestOrResponse = request || response;
+         (0, utility_1.assertRequired)(requestOrResponse, "either request or response is required");
+         let buffer;
+-        if (this.options.skipRequestCompression) {
++       // logout requestOrResponse must be compressed anyway
++        if (this.options.skipRequestCompression && operation !== "logout") {
+             buffer = Buffer.from(requestOrResponse, "utf8");
+         }
+         else {
+@@ -495,7 +496,7 @@ class SAML {
+         try {
+             xml = Buffer.from(container.SAMLResponse, "base64").toString("utf8");
+             doc = await (0, xml_1.parseDomFromString)(xml);
+-            const inResponseToNodes = xml_1.xpath.selectAttributes(doc, "/*[local-name()='Response']/@InResponseTo");
++            const inResponseToNodes = xml_1.xpath.selectAttributes(doc, "/*[local-name()='Response' or local-name()='LogoutResponse']/@InResponseTo");
+             if (inResponseToNodes) {
+                 inResponseTo = inResponseToNodes.length ? inResponseToNodes[0].nodeValue : null;
+                 await this.validateInResponseTo(inResponseTo);

patches/ldapauth-fork+4.3.3.patch

@@ -0,0 +1,64 @@
+diff --git a/node_modules/ldapauth-fork/lib/ldapauth.js b/node_modules/ldapauth-fork/lib/ldapauth.js
+index 85ecf36a8b..a7d07e0f78 100644
+--- a/node_modules/ldapauth-fork/lib/ldapauth.js
++++ b/node_modules/ldapauth-fork/lib/ldapauth.js
+@@ -69,6 +69,7 @@ function LdapAuth(opts) {
+   this.opts.bindProperty || (this.opts.bindProperty = 'dn');
+   this.opts.groupSearchScope || (this.opts.groupSearchScope = 'sub');
+   this.opts.groupDnProperty || (this.opts.groupDnProperty = 'dn');
++  this.opts.tlsStarted = false;
+
+   EventEmitter.call(this);
+
+@@ -108,21 +109,7 @@ function LdapAuth(opts) {
+   this._userClient.on('error', this._handleError.bind(this));
+
+   var self = this;
+-  if (this.opts.starttls) {
+-    // When starttls is enabled, this callback supplants the 'connect' callback
+-    this._adminClient.starttls(this.opts.tlsOptions, this._adminClient.controls, function(err) {
+-      if (err) {
+-        self._handleError(err);
+-      } else {
+-        self._onConnectAdmin();
+-      }
+-    });
+-    this._userClient.starttls(this.opts.tlsOptions, this._userClient.controls, function(err) {
+-      if (err) {
+-        self._handleError(err);
+-      }
+-    });
+-  } else if (opts.reconnect) {
++  if (opts.reconnect && !this.opts.starttls) {
+     this.once('_installReconnectListener', function() {
+       self.log && self.log.trace('install reconnect listener');
+       self._adminClient.on('connect', function() {
+@@ -384,6 +371,28 @@ LdapAuth.prototype._findGroups = function(user, callback) {
+  */
+ LdapAuth.prototype.authenticate = function(username, password, callback) {
+   var self = this;
++  if (this.opts.starttls && !this.opts.tlsStarted) {
++    // When starttls is enabled, this callback supplants the 'connect' callback
++    this._adminClient.starttls(this.opts.tlsOptions, this._adminClient.controls, function (err) {
++      if (err) {
++        self._handleError(err);
++      } else {
++        self._onConnectAdmin(function(){self._handleAuthenticate(username, password, callback);});
++      }
++    });
++    this._userClient.starttls(this.opts.tlsOptions, this._userClient.controls, function (err) {
++      if (err) {
++        self._handleError(err);
++      }
++    });
++  } else {
++    self._handleAuthenticate(username, password, callback);
++  }
++};
++
++LdapAuth.prototype._handleAuthenticate = function (username, password, callback) {
++  this.opts.tlsStarted = true;
++  var self = this;
+
+   if (typeof password === 'undefined' || password === null || password === '') {
+     return callback(new Error('no password given'));

server-ce/config/env.sh

@@ -9,5 +9,6 @@ export HISTORY_V1_HOST=127.0.0.1
 export NOTIFICATIONS_HOST=127.0.0.1
 export PROJECT_HISTORY_HOST=127.0.0.1
 export REALTIME_HOST=127.0.0.1
+export REFERENCES_HOST=127.0.0.1
 export WEB_HOST=127.0.0.1
 export WEB_API_HOST=127.0.0.1

server-ce/config/settings.js

@@ -462,6 +462,35 @@ switch (process.env.OVERLEAF_FILESTORE_BACKEND) {
     }
 }
 
+// Overleaf Extended CE Compiler options to enable sandboxed compiles.
+// -----------
+if (process.env.SANDBOXED_COMPILES === 'true') {
+  settings.clsi = {
+    ...settings.clsi,
+    dockerRunner: true,
+    docker: {
+      image: process.env.TEX_LIVE_DOCKER_IMAGE,
+      user:  process.env.TEX_LIVE_DOCKER_USER || 'www-data',
+    }
+  }
+
+  if (settings.path == null) {
+    settings.path = {}
+  }
+  settings.path.synctexBaseDir = () => '/compile'
+  if (process.env.SANDBOXED_COMPILES_SIBLING_CONTAINERS === 'true') {
+    console.log('Using sibling containers for sandboxed compiles')
+    if (process.env.SANDBOXED_COMPILES_HOST_DIR) {
+      settings.path.sandboxedCompilesHostDir =
+        process.env.SANDBOXED_COMPILES_HOST_DIR
+    } else {
+      console.error(
+        'Sibling containers, but SANDBOXED_COMPILES_HOST_DIR not set'
+      )
+    }
+  }
+}
+
 // With lots of incoming and outgoing HTTP connections to different services,
 // sometimes long running, it is a good idea to increase the default number
 // of sockets that Node will hold open.

server-ce/runit/references-overleaf/run

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+NODE_PARAMS=""
+if [ "$DEBUG_NODE" == "true" ]; then
+    echo "running debug - references"
+    NODE_PARAMS="--inspect=0.0.0.0:30560"
+fi
+
+source /etc/overleaf/env.sh
+export LISTEN_ADDRESS=127.0.0.1
+
+exec /sbin/setuser www-data /usr/bin/node $NODE_PARAMS /overleaf/services/references/app.js >> /var/log/overleaf/references.log 2>&1

server-ce/services.js

@@ -29,6 +29,9 @@ module.exports = [
   {
     name: 'project-history',
   },
+  {
+    name: 'references',
+  },
   {
     name: 'history-v1',
   },

services/clsi/app/js/DockerRunner.js

@@ -234,8 +234,8 @@ const DockerRunner = {
       }
     }
     // set the path based on the image year
-    const match = image.match(/:([0-9]+)\.[0-9]+/)
-    const year = match ? match[1] : '2014'
+    const match = image.match(/:([0-9]+)\.[0-9]+|:TL([0-9]+)/)
+    const year = match ? match[1] || match[2] : '2014'
     env.PATH = `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/texlive/${year}/bin/x86_64-linux/`
     const options = {
       Cmd: command,

services/references/.eslintrc

@@ -0,0 +1,6 @@
+{
+  "parserOptions": {
+    "ecmaVersion": 2022,
+    "sourceType": "module"
+  }
+}

services/references/.gitignore

@@ -0,0 +1,5 @@
+node_modules
+forever
+
+# managed by dev-environment$ bin/update_build_scripts
+.npmrc

services/references/.mocharc.json

@@ -0,0 +1,3 @@
+{
+  "require": "test/setup.js"
+}

services/references/.nvmrc

@@ -0,0 +1 @@
+20.18.2

services/references/Dockerfile

@@ -0,0 +1,27 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+FROM node:20.18.2 AS base
+
+WORKDIR /overleaf/services/references
+
+# Google Cloud Storage needs a writable $HOME/.config for resumable uploads
+# (see https://googleapis.dev/nodejs/storage/latest/File.html#createWriteStream)
+RUN mkdir /home/node/.config && chown node:node /home/node/.config
+
+FROM base AS app
+
+COPY package.json package-lock.json /overleaf/
+COPY services/references/package.json /overleaf/services/references/
+COPY libraries/ /overleaf/libraries/
+COPY patches/ /overleaf/patches/
+
+RUN cd /overleaf && npm ci --quiet
+
+COPY services/references/ /overleaf/services/references/
+
+FROM app
+USER node
+
+CMD ["node", "--expose-gc", "app.js"]

services/references/LICENSE

@@ -0,0 +1,662 @@
+
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ 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.
+
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+
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+
+  "This License" refers to version 3 of the GNU Affero General Public License.
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+
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+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
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+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.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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 <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
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+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
+<http://www.gnu.org/licenses/>.

services/references/Makefile

@@ -0,0 +1,156 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+BUILD_NUMBER ?= local
+BRANCH_NAME ?= $(shell git rev-parse --abbrev-ref HEAD)
+PROJECT_NAME = references
+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 ${DOCKER_COMPOSE_FLAGS}
+
+COMPOSE_PROJECT_NAME_TEST_ACCEPTANCE ?= test_acceptance_$(BUILD_DIR_NAME)
+DOCKER_COMPOSE_TEST_ACCEPTANCE = \
+	COMPOSE_PROJECT_NAME=$(COMPOSE_PROJECT_NAME_TEST_ACCEPTANCE) $(DOCKER_COMPOSE)
+
+COMPOSE_PROJECT_NAME_TEST_UNIT ?= test_unit_$(BUILD_DIR_NAME)
+DOCKER_COMPOSE_TEST_UNIT = \
+	COMPOSE_PROJECT_NAME=$(COMPOSE_PROJECT_NAME_TEST_UNIT) $(DOCKER_COMPOSE)
+
+clean:
+	-docker rmi ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+	-docker rmi us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+	-$(DOCKER_COMPOSE_TEST_UNIT) down --rmi local
+	-$(DOCKER_COMPOSE_TEST_ACCEPTANCE) down --rmi local
+
+HERE=$(shell pwd)
+MONOREPO=$(shell cd ../../ && pwd)
+# Run the linting commands in the scope of the monorepo.
+# Eslint and prettier (plus some configs) are on the root.
+RUN_LINTING = docker run --rm -v $(MONOREPO):$(MONOREPO) -w $(HERE) node:20.18.2 npm run --silent
+
+RUN_LINTING_CI = docker run --rm --volume $(MONOREPO)/.editorconfig:/overleaf/.editorconfig --volume $(MONOREPO)/.eslintignore:/overleaf/.eslintignore --volume $(MONOREPO)/.eslintrc:/overleaf/.eslintrc --volume $(MONOREPO)/.prettierignore:/overleaf/.prettierignore --volume $(MONOREPO)/.prettierrc:/overleaf/.prettierrc --volume $(MONOREPO)/tsconfig.backend.json:/overleaf/tsconfig.backend.json ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) npm run --silent
+
+# Same but from the top of the monorepo
+RUN_LINTING_MONOREPO = docker run --rm -v $(MONOREPO):$(MONOREPO) -w $(MONOREPO) node:20.18.2 npm run --silent
+
+SHELLCHECK_OPTS = \
+	--shell=bash \
+	--external-sources
+SHELLCHECK_COLOR := $(if $(CI),--color=never,--color)
+SHELLCHECK_FILES := { git ls-files "*.sh" -z; git grep -Plz "\A\#\!.*bash"; } | sort -zu
+
+shellcheck:
+	@$(SHELLCHECK_FILES) | xargs -0 -r docker run --rm -v $(HERE):/mnt -w /mnt \
+		koalaman/shellcheck:stable $(SHELLCHECK_OPTS) $(SHELLCHECK_COLOR)
+
+shellcheck_fix:
+	@$(SHELLCHECK_FILES) | while IFS= read -r -d '' file; do \
+		diff=$$(docker run --rm -v $(HERE):/mnt -w /mnt koalaman/shellcheck:stable $(SHELLCHECK_OPTS) --format=diff "$$file" 2>/dev/null); \
+		if [ -n "$$diff" ] && ! echo "$$diff" | patch -p1 >/dev/null 2>&1; then echo "\033[31m$$file\033[0m"; \
+		elif [ -n "$$diff" ]; then echo "$$file"; \
+		else echo "\033[2m$$file\033[0m"; fi \
+	done
+
+format:
+	$(RUN_LINTING) format
+
+format_ci:
+	$(RUN_LINTING_CI) format
+
+format_fix:
+	$(RUN_LINTING) format:fix
+
+lint:
+	$(RUN_LINTING) lint
+
+lint_ci:
+	$(RUN_LINTING_CI) lint
+
+lint_fix:
+	$(RUN_LINTING) lint:fix
+
+typecheck:
+	$(RUN_LINTING) types:check
+
+typecheck_ci:
+	$(RUN_LINTING_CI) types:check
+
+test: format lint typecheck shellcheck test_unit test_acceptance
+
+test_unit:
+ifneq (,$(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
+
+benchmarks:
+	$(DOCKER_COMPOSE_TEST_ACCEPTANCE) run --rm test_acceptance npm run benchmarks
+
+build:
+	docker build \
+		--pull \
+		--build-arg BUILDKIT_INLINE_CACHE=1 \
+		--tag ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) \
+		--tag us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER) \
+		--tag us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME):$(BRANCH_NAME) \
+		--cache-from us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME):$(BRANCH_NAME) \
+		--cache-from us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME):main \
+		--file Dockerfile \
+		../..
+
+tar:
+	$(DOCKER_COMPOSE) up tar
+
+publish:
+
+	docker push $(DOCKER_REPO)/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+
+
+.PHONY: clean \
+	format format_fix \
+	lint lint_fix \
+	build_types typecheck \
+	lint_ci format_ci typecheck_ci \
+	shellcheck shellcheck_fix \
+	test test_clean test_unit test_unit_clean \
+	test_acceptance test_acceptance_debug test_acceptance_pre_run \
+	test_acceptance_run test_acceptance_run_debug test_acceptance_clean \
+	benchmarks \
+	build tar publish \

services/references/README.md

@@ -0,0 +1,10 @@
+overleaf/references
+===============
+
+An API for providing citation-keys from user bib-files
+
+License
+=======
+The code in this repository is released under the GNU AFFERO GENERAL PUBLIC LICENSE, version 3.
+
+Based on https://github.com/overleaf/overleaf/commit/9964aebc794f9fd7ce1373ab3484f6b33b061af3

services/references/app.js

@@ -0,0 +1,40 @@
+import '@overleaf/metrics/initialize.js'
+
+import express from 'express'
+import Settings from '@overleaf/settings'
+import logger from '@overleaf/logger'
+import metrics from '@overleaf/metrics'
+import ReferencesAPIController from './app/js/ReferencesAPIController.js'
+import bodyParser from 'body-parser'
+
+const app = express()
+metrics.injectMetricsRoute(app)
+
+app.use(bodyParser.json({ limit: '2mb' }))
+app.use(metrics.http.monitor(logger))
+
+app.post('/project/:project_id/index', ReferencesAPIController.index)
+app.get('/status', (req, res) => res.send({ status: 'references api is up' }))
+
+const settings =
+  Settings.internal && Settings.internal.references
+    ? Settings.internal.references
+    : undefined
+const host = settings && settings.host ? settings.host : 'localhost'
+const port = settings && settings.port ? settings.port : 3056
+
+logger.debug('Listening at', { host, port })
+
+const server = app.listen(port, host, function (error) {
+  if (error) {
+    throw error
+  }
+  logger.info({ host, port }, 'references HTTP server starting up')
+})
+
+process.on('SIGTERM', () => {
+  server.close(() => {
+    logger.info({ host, port }, 'references HTTP server closed')
+    metrics.close()
+  })
+})

services/references/app/js/ReferencesAPIController.js

@@ -0,0 +1,42 @@
+import logger from '@overleaf/logger'
+import BibtexParser from './bib2json.js'
+
+export default {
+  async index(req, res) {
+    const { docUrls, fullIndex } = req.body
+    try {
+      const responses = await Promise.all(
+        docUrls.map(async (docUrl) => {
+          try {
+            const response = await fetch(docUrl)
+            if (!response.ok) {
+              throw new Error(`HTTP error! status: ${response.status}`)
+            }
+            return response.text()
+          } catch (error) {
+            logger.error({ error }, "Failed to fetch document from URL: " + docUrl)
+            return null
+          }
+        })
+      )
+      const keys = []
+      for (const body of responses) {
+        if (!body) continue
+
+        try {
+          const parsedEntries = BibtexParser(body).entries
+          const ks = parsedEntries
+            .filter(entry => entry.EntryKey)
+            .map(entry => entry.EntryKey)
+          keys.push(...ks)
+        } catch (error) {
+          logger.error({ error }, "bib file skipped.")
+        }
+      }
+      res.status(200).json({ keys })
+    } catch (error) {
+      logger.error({ error }, "Unexpected error during indexing process.")
+      res.status(500).json({ error: "Failed to process bib files." })
+    }
+  }
+}

services/references/buildscript.txt

@@ -0,0 +1,9 @@
+references
+--dependencies=mongo
+--docker-repos=us-east1-docker.pkg.dev/overleaf-ops/ol-docker
+--env-add=
+--env-pass-through=
+--esmock-loader=True
+--node-version=20.18.2
+--public-repo=False
+--script-version=4.5.0

services/references/config/settings.defaults.cjs

@@ -0,0 +1,9 @@
+module.exports = {
+  internal: {
+    references: {
+      port: 3056,
+      host: process.env.REFERENCES_HOST || '127.0.0.1',
+    },
+  },
+}
+

services/references/docker-compose.ci.yml

@@ -0,0 +1,52 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+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
+      MONGO_HOST: mongo
+      POSTGRES_HOST: postgres
+      MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    depends_on:
+      mongo:
+        condition: service_started
+    user: node
+    command: npm run test:acceptance
+
+
+  tar:
+    build: .
+    image: ci/$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
+  mongo:
+    image: mongo:6.0.13
+    command: --replSet overleaf
+    volumes:
+      - ../../bin/shared/mongodb-init-replica-set.js:/docker-entrypoint-initdb.d/mongodb-init-replica-set.js
+    environment:
+      MONGO_INITDB_DATABASE: sharelatex
+    extra_hosts:
+      # Required when using the automatic database setup for initializing the
+      # replica set. This override is not needed when running the setup after
+      # starting up mongo.
+      - mongo:127.0.0.1

services/references/docker-compose.yml

@@ -0,0 +1,56 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+version: "2.3"
+
+services:
+  test_unit:
+    image: node:20.18.2
+    volumes:
+      - .:/overleaf/services/references
+      - ../../node_modules:/overleaf/node_modules
+      - ../../libraries:/overleaf/libraries
+    working_dir: /overleaf/services/references
+    environment:
+      MOCHA_GREP: ${MOCHA_GREP}
+      LOG_LEVEL: ${LOG_LEVEL:-}
+      NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    command: npm run --silent test:unit
+    user: node
+
+  test_acceptance:
+    image: node:20.18.2
+    volumes:
+      - .:/overleaf/services/references
+      - ../../node_modules:/overleaf/node_modules
+      - ../../libraries:/overleaf/libraries
+    working_dir: /overleaf/services/references
+    environment:
+      ELASTIC_SEARCH_DSN: es:9200
+      MONGO_HOST: mongo
+      POSTGRES_HOST: postgres
+      MOCHA_GREP: ${MOCHA_GREP}
+      LOG_LEVEL: ${LOG_LEVEL:-}
+      NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    user: node
+    depends_on:
+      mongo:
+        condition: service_started
+    command: npm run --silent test:acceptance
+
+  mongo:
+    image: mongo:6.0.13
+    command: --replSet overleaf
+    volumes:
+      - ../../bin/shared/mongodb-init-replica-set.js:/docker-entrypoint-initdb.d/mongodb-init-replica-set.js
+    environment:
+      MONGO_INITDB_DATABASE: sharelatex
+    extra_hosts:
+      # Required when using the automatic database setup for initializing the
+      # replica set. This override is not needed when running the setup after
+      # starting up mongo.
+      - mongo:127.0.0.1
+

services/references/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@overleaf/references",
+  "description": "An API for providing citation-keys",
+  "private": true,
+  "type": "module",
+  "main": "app.js",
+  "scripts": {
+    "start": "node app.js"
+  },
+  "version": "0.1.0",
+  "dependencies": {
+    "@overleaf/settings": "*",
+    "@overleaf/logger": "*",
+    "@overleaf/metrics": "*",
+    "async": "^3.2.5",
+    "express": "^4.21.2"
+  },
+  "devDependencies": {
+    "chai": "^4.3.6",
+    "chai-as-promised": "^7.1.1",
+    "esmock": "^2.6.9",
+    "mocha": "^11.1.0",
+    "sinon": "^9.2.4",
+    "typescript": "^5.0.4"
+  }
+}

services/references/tsconfig.json

@@ -0,0 +1,12 @@
+{
+  "extends": "../../tsconfig.backend.json",
+  "include": [
+    "app.js",
+    "app/js/**/*",
+    "benchmarks/**/*",
+    "config/**/*",
+    "scripts/**/*",
+    "test/**/*",
+    "types"
+  ]
+}

services/web/app/src/Features/Authentication/AuthenticationController.js

@@ -82,6 +82,7 @@ const AuthenticationController = {
       analyticsId: user.analyticsId || user._id,
       alphaProgram: user.alphaProgram || undefined, // only store if set
       betaProgram: user.betaProgram || undefined, // only store if set
+      externalAuth: user.externalAuth || false,
     }
     if (user.isAdmin) {
       lightUser.isAdmin = true

services/web/app/src/Features/Compile/ClsiManager.js

@@ -683,7 +683,7 @@ async function _getContentFromMongo(projectId) {
 
 function _finaliseRequest(projectId, options, project, docs, files) {
   const resources = []
-  let flags
+  let flags = []
   let rootResourcePath = null
   let rootResourcePathOverride = null
   let hasMainFile = false
@@ -762,6 +762,10 @@ function _finaliseRequest(projectId, options, project, docs, files) {
     flags = ['-file-line-error']
   }
 
+  if (process.env.TEX_COMPILER_EXTRA_FLAGS) {
+    flags.push(...process.env.TEX_COMPILER_EXTRA_FLAGS.split(/\s+/).filter(Boolean))
+  }
+
   return {
     compile: {
       options: {

services/web/app/src/Features/PasswordReset/PasswordResetController.mjs

@@ -119,7 +119,7 @@ async function requestReset(req, res, next) {
     OError.tag(err, 'failed to generate and email password reset token', {
       email,
     })
-    if (err.message === 'user does not have permission for change-password') {
+    if (err.message === 'user does not have one or more permissions within change-password') {
       return res.status(403).json({
         message: {
           key: 'no-password-allowed-due-to-sso',

services/web/app/src/Features/PasswordReset/PasswordResetHandler.mjs

@@ -72,6 +72,7 @@ async function getUserForPasswordResetToken(token) {
     'overleaf.id': 1,
     email: 1,
     must_reconfirm: 1,
+    hashedPassword: 1,
   })
 
   await assertUserPermissions(user, ['change-password'])

services/web/app/src/Features/Project/ProjectEditorHandler.js

@@ -9,7 +9,7 @@ function mergeDeletedDocs(a, b) {
 }
 
 module.exports = ProjectEditorHandler = {
-  trackChangesAvailable: false,
+  trackChangesAvailable: true,
 
   buildProjectModelView(project, members, invites, deletedDocsFromDocstore) {
     let owner, ownerFeatures
@@ -38,10 +38,7 @@ module.exports = ProjectEditorHandler = {
       ),
       members: [],
       invites: this.buildInvitesView(invites),
-      imageName:
-        project.imageName != null
-          ? Path.basename(project.imageName)
-          : undefined,
+      imageName: project.imageName,
     }
 
     ;({ owner, ownerFeatures, members } =

services/web/app/src/Features/Project/ProjectOptionsHandler.js

@@ -22,7 +22,6 @@ const ProjectOptionsHandler = {
     if (!imageName || !Array.isArray(settings.allowedImageNames)) {
       return
     }
-    imageName = imageName.toLowerCase()
     const isAllowed = settings.allowedImageNames.find(
       allowed => imageName === allowed.imageName
     )
@@ -30,7 +29,7 @@ const ProjectOptionsHandler = {
       throw new Error(`invalid imageName: ${imageName}`)
     }
     const conditions = { _id: projectId }
-    const update = { imageName: settings.imageRoot + '/' + imageName }
+    const update = { imageName: imageName }
     return Project.updateOne(conditions, update, {})
   },
 

services/web/app/src/Features/User/UserController.js

@@ -515,4 +515,5 @@ module.exports = {
   expireDeletedUsersAfterDuration: expressify(expireDeletedUsersAfterDuration),
   ensureAffiliationMiddleware: expressify(ensureAffiliationMiddleware),
   ensureAffiliation,
+  doLogout,
 }

services/web/app/src/Features/User/UserPagesController.mjs

@@ -53,10 +53,8 @@ async function settingsPage(req, res) {
   const reconfirmedViaSAML = _.get(req.session, ['saml', 'reconfirmed'])
   delete req.session.saml
   let shouldAllowEditingDetails = true
-  if (Settings.ldap && Settings.ldap.updateUserDetailsOnLogin) {
-    shouldAllowEditingDetails = false
-  }
-  if (Settings.saml && Settings.saml.updateUserDetailsOnLogin) {
+  const externalAuth = req.user.externalAuth
+  if (externalAuth && Settings[externalAuth].updateUserDetailsOnLogin) {
     shouldAllowEditingDetails = false
   }
   const oauthProviders = Settings.oauthProviders || {}

services/web/app/src/infrastructure/ExpressLocals.js

@@ -106,9 +106,9 @@ module.exports = function (webRouter, privateApiRouter, publicApiRouter) {
 
   webRouter.use(function (req, res, next) {
     req.externalAuthenticationSystemUsed =
-      Features.externalAuthenticationSystemUsed
+      () => !!req?.user?.externalAuth
     res.locals.externalAuthenticationSystemUsed =
-      Features.externalAuthenticationSystemUsed
+      () => !!req?.user?.externalAuth
     req.hasFeature = res.locals.hasFeature = Features.hasFeature
     next()
   })

services/web/app/src/router.mjs

@@ -216,6 +216,8 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
     CaptchaMiddleware.canSkipCaptcha
   )
 
+  await Modules.applyRouter(webRouter, privateApiRouter, publicApiRouter)
+
   webRouter.get('/login', UserPagesController.loginPage)
   AuthenticationController.addEndpointToLoginWhitelist('/login')
 
@@ -284,8 +286,6 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
   TokenAccessRouter.apply(webRouter)
   HistoryRouter.apply(webRouter, privateApiRouter)
 
-  await Modules.applyRouter(webRouter, privateApiRouter, publicApiRouter)
-
   if (Settings.enableSubscriptions) {
     webRouter.get(
       '/user/bonus',
@@ -1318,6 +1318,10 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
     TokenAccessController.grantTokenAccessReadOnly
   )
 
+  webRouter.get(['/learn*', '/templates*', '/blog*', '/latex*', '/for/*', '/contact*'], (req, res) => {
+    res.redirect(301, `https://www.overleaf.com${req.originalUrl}`)
+  })
+
   webRouter.get('/unsupported-browser', renderUnsupportedBrowserPage)
 
   webRouter.get('*', ErrorController.notFound)

services/web/app/views/user/login.pug

@@ -25,10 +25,10 @@ block content
 								| !{translate('password_compromised_try_again_or_use_known_device_or_reset', {}, [{name: 'a', attrs: {href: 'https://haveibeenpwned.com/passwords', rel: 'noopener noreferrer', target: '_blank'}}, {name: 'a', attrs: {href: '/user/password/reset', target: '_blank'}}])}.
 							.form-group
 								input.form-control(
-									type='email',
+									type=(settings.ldap && settings.ldap.enable) ? 'text' : 'email',
 									name='email',
 									required,
-									placeholder='email@example.com',
+									placeholder=(settings.ldap && settings.ldap.enable) ? settings.ldap.placeholder : 'email@example.com',
 									autofocus="true"
 								)
 							.form-group
@@ -50,3 +50,21 @@ block content
 								hr
 								p.text-center !{login_support_text}	
 	
+						if settings.saml && settings.saml.enable
+							form(data-ol-async-form, name="samlLoginForm")
+								.actions(style='margin-top: 30px;')
+									a.btn.btn-secondary.btn-block(
+										href='/saml/login',
+										data-ol-disabled-inflight
+									)
+										span(data-ol-inflight="idle") #{settings.saml.identityServiceName}
+										span(hidden data-ol-inflight="pending") #{translate("logging_in")}…
+						if settings.oidc && settings.oidc.enable
+							form(data-ol-async-form, name="oidcLoginForm")
+								.actions(style='margin-top: 30px;')
+									a.btn.btn-secondary.btn-block(
+										href='/oidc/login',
+										data-ol-disabled-inflight
+									)
+										span(data-ol-inflight="idle") #{settings.oidc.identityServiceName}
+										span(hidden data-ol-inflight="pending") #{translate("logging_in")}…

services/web/app/views/user/passwordReset.pug

@@ -52,7 +52,7 @@ block content
 								.notification-content-and-cta
 									.notification-content
 										p
-											| !{translate("you_cant_reset_password_due_to_sso", {}, [{name: 'a', attrs: {href: '/sso-login'}}])}
+											| !{translate("you_cant_reset_password_due_to_ldap_or_sso")}
 
 						input(type="hidden", name="_csrf", value=csrfToken)
 						.form-group.mb-3

services/web/config/settings.defaults.js

@@ -261,6 +261,9 @@ module.exports = {
     notifications: {
       url: `http://${process.env.NOTIFICATIONS_HOST || '127.0.0.1'}:3042`,
     },
+    references: {
+      url: `http://${process.env.REFERENCES_HOST || '127.0.0.1'}:3056`,
+    },
     webpack: {
       url: `http://${process.env.WEBPACK_HOST || '127.0.0.1'}:3808`,
     },
@@ -967,7 +970,7 @@ module.exports = {
     pdfLogEntriesComponents: [],
     diagnosticActions: [],
     sourceEditorCompletionSources: [],
-    sourceEditorSymbolPalette: [],
+    sourceEditorSymbolPalette: ['@/features/symbol-palette/components/symbol-palette'],
     sourceEditorToolbarComponents: [],
     mainEditorLayoutModals: [],
     langFeedbackLinkingWidgets: [],
@@ -1001,6 +1004,11 @@ module.exports = {
     'launchpad',
     'server-ce-scripts',
     'user-activate',
+    'symbol-palette',
+    'track-changes',
+    'authentication/ldap',
+    'authentication/saml',
+    'authentication/oidc',
   ],
   viewIncludes: {},
 
@@ -1027,6 +1035,29 @@ module.exports = {
   managedUsers: {
     enabled: false,
   },
+
+  allowedImageNames: process.env.SANDBOXED_COMPILES === 'true'
+    ? parseTextExtensions(process.env.ALL_TEX_LIVE_DOCKER_IMAGES)
+        .map((imageName, index) => ({
+          imageName,
+          imageDesc: parseTextExtensions(process.env.ALL_TEX_LIVE_DOCKER_IMAGE_NAMES)[index]
+            || imageName.split(':')[1],
+        }))
+    : undefined,
+
+  oauthProviders: {
+    ...(process.env.EXTERNAL_AUTH && process.env.EXTERNAL_AUTH.includes('oidc') && {
+      [process.env.OVERLEAF_OIDC_PROVIDER_ID || 'oidc']: {
+        name: process.env.OVERLEAF_OIDC_PROVIDER_NAME || 'OIDC Provider',
+        descriptionKey: process.env.OVERLEAF_OIDC_PROVIDER_DESCRIPTION,
+        descriptionOptions: { link: process.env.OVERLEAF_OIDC_PROVIDER_INFO_LINK },
+        hideWhenNotLinked: process.env.OVERLEAF_OIDC_PROVIDER_HIDE_NOT_LINKED ?
+          process.env.OVERLEAF_OIDC_PROVIDER_HIDE_NOT_LINKED.toLowerCase() === 'true' : undefined,
+        linkPath: '/oidc/login',
+      },
+    }),
+  },
+
 }
 
 module.exports.mergeWith = function (overrides) {

services/web/frontend/extracted-translations.json

@@ -2037,6 +2037,7 @@
   "you_can_select_or_invite": "",
   "you_can_select_or_invite_plural": "",
   "you_can_still_use_your_premium_features": "",
+  "you_cant_add_or_change_password_due_to_ldap_or_sso": "",
   "you_cant_add_or_change_password_due_to_sso": "",
   "you_cant_join_this_group_subscription": "",
   "you_dont_have_any_add_ons_on_your_account": "",

services/web/frontend/js/features/hotkeys-modal/components/hotkeys-modal-bottom-text.jsx

@@ -10,7 +10,7 @@ export default function HotkeysModalBottomText() {
           // eslint-disable-next-line jsx-a11y/anchor-has-content, react/jsx-key
           <a
             onClick={() => eventTracking.sendMB('left-menu-hotkeys-template')}
-            href="/articles/overleaf-keyboard-shortcuts/qykqfvmxdnjf"
+            href="https://www.overleaf.com/latex/templates/overleaf-keyboard-shortcuts/pphdnzrwmttk"
             target="_blank"
           />,
         ]}

services/web/frontend/js/features/settings/components/linking-section.tsx

@@ -212,7 +212,8 @@ function SSOLinkingWidgetContainer({
   const { t } = useTranslation()
   const { unlink } = useSSOContext()
 
-  let description = ''
+  let description = subscription.provider.descriptionKey ||
+    `${t('login_with_service', { service: subscription.provider.name, })}.`
   switch (subscription.providerId) {
     case 'collabratec':
       description = t('linked_collabratec_description')

services/web/frontend/js/features/settings/components/linking/sso-widget.tsx

@@ -4,6 +4,7 @@ import { FetchError } from '../../../../infrastructure/fetch-json'
 import IEEELogo from '../../../../shared/svgs/ieee-logo'
 import GoogleLogo from '../../../../shared/svgs/google-logo'
 import OrcidLogo from '../../../../shared/svgs/orcid-logo'
+import OpenIDLogo from '../../../../shared/svgs/openid-logo'
 import LinkingStatus from './status'
 import OLButton from '@/features/ui/components/ol/ol-button'
 import OLModal, {
@@ -17,6 +18,7 @@ const providerLogos: { readonly [p: string]: JSX.Element } = {
   collabratec: <IEEELogo />,
   google: <GoogleLogo />,
   orcid: <OrcidLogo />,
+  oidc: <OpenIDLogo />,
 }
 
 type SSOLinkingWidgetProps = {
@@ -66,7 +68,7 @@ export function SSOLinkingWidget({
 
   return (
     <div className="settings-widget-container">
-      <div>{providerLogos[providerId]}</div>
+      <div>{providerLogos[providerId] || providerLogos['oidc']}</div>
       <div className="description-container">
         <div className="title-row">
           <h4>{title}</h4>

services/web/frontend/js/features/settings/components/password-section.tsx

@@ -39,11 +39,7 @@ function CanOnlyLogInThroughSSO() {
   return (
     <p>
       <Trans
-        i18nKey="you_cant_add_or_change_password_due_to_sso"
-        components={[
-          // eslint-disable-next-line react/jsx-key, jsx-a11y/anchor-has-content
-          <a href="/learn/how-to/Logging_in_with_Group_single_sign-on" />,
-        ]}
+        i18nKey="you_cant_add_or_change_password_due_to_ldap_or_sso"
       />
     </p>
   )

services/web/frontend/js/features/source-editor/hooks/use-codemirror-scope.ts

@@ -182,7 +182,7 @@ function useCodeMirrorScope(view: EditorView) {
 
     if (currentDocument) {
       if (trackChanges) {
-        currentDocument.track_changes_as = userId || 'anonymous'
+        currentDocument.track_changes_as = userId || 'anonymous-user'
       } else {
         currentDocument.track_changes_as = null
       }

services/web/frontend/js/features/symbol-palette/components/symbol-palette-body.js

@@ -0,0 +1,61 @@
+import { TabPanels, TabPanel } from '@reach/tabs'
+import { useTranslation } from 'react-i18next'
+import PropTypes from 'prop-types'
+import SymbolPaletteItems from './symbol-palette-items'
+
+export default function SymbolPaletteBody({
+  categories,
+  categorisedSymbols,
+  filteredSymbols,
+  handleSelect,
+  focusInput,
+}) {
+  const { t } = useTranslation()
+
+  // searching with matches: show the matched symbols
+  // searching with no matches: show a message
+  // note: include empty tab panels so that aria-controls on tabs can still reference the panel ids
+  if (filteredSymbols) {
+    return (
+      <>
+        {filteredSymbols.length ? (
+          <SymbolPaletteItems
+            items={filteredSymbols}
+            handleSelect={handleSelect}
+            focusInput={focusInput}
+          />
+        ) : (
+          <div className="symbol-palette-empty">{t('no_symbols_found')}</div>
+        )}
+
+        <TabPanels>
+          {categories.map(category => (
+            <TabPanel key={category.id} tabIndex={-1} />
+          ))}
+        </TabPanels>
+      </>
+    )
+  }
+
+  // not searching: show the symbols grouped by category
+  return (
+    <TabPanels>
+      {categories.map(category => (
+        <TabPanel key={category.id} tabIndex={-1}>
+          <SymbolPaletteItems
+            items={categorisedSymbols[category.id]}
+            handleSelect={handleSelect}
+            focusInput={focusInput}
+          />
+        </TabPanel>
+      ))}
+    </TabPanels>
+  )
+}
+SymbolPaletteBody.propTypes = {
+  categories: PropTypes.arrayOf(PropTypes.object).isRequired,
+  categorisedSymbols: PropTypes.object,
+  filteredSymbols: PropTypes.arrayOf(PropTypes.object),
+  handleSelect: PropTypes.func.isRequired,
+  focusInput: PropTypes.func.isRequired,
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette-close-button.js

@@ -0,0 +1,19 @@
+import { useEditorContext } from '../../../shared/context/editor-context'
+import { useTranslation } from 'react-i18next'
+
+export default function SymbolPaletteCloseButton() {
+  const { toggleSymbolPalette } = useEditorContext()
+  const { t } = useTranslation()
+
+  return (
+    <div className="symbol-palette-close-button-outer">
+      <button
+        type="button"
+        className="btn-close symbol-palette-close-button"
+        onClick={toggleSymbolPalette}
+        aria-label={t('clear_search')}
+      >
+      </button>
+    </div>
+  )
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette-content.js

@@ -0,0 +1,90 @@
+import { Tabs } from '@reach/tabs'
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import PropTypes from 'prop-types'
+import { matchSorter } from 'match-sorter'
+import symbols from '../data/symbols.json'
+import { buildCategorisedSymbols, createCategories } from '../utils/categories'
+import SymbolPaletteSearch from './symbol-palette-search'
+import SymbolPaletteBody from './symbol-palette-body'
+import SymbolPaletteTabs from './symbol-palette-tabs'
+import SymbolPaletteCloseButton from './symbol-palette-close-button'
+
+import '@reach/tabs/styles.css'
+
+export default function SymbolPaletteContent({ handleSelect }) {
+  const [input, setInput] = useState('')
+
+  const { t } = useTranslation()
+
+  // build the list of categories with translated labels
+  const categories = useMemo(() => createCategories(t), [t])
+
+  // group the symbols by category
+  const categorisedSymbols = useMemo(
+    () => buildCategorisedSymbols(categories),
+    [categories]
+  )
+
+  // select symbols which match the input
+  const filteredSymbols = useMemo(() => {
+    if (input === '') {
+      return null
+    }
+
+    const words = input.trim().split(/\s+/)
+
+    return words.reduceRight(
+      (symbols, word) =>
+        matchSorter(symbols, word, {
+          keys: ['command', 'description', 'character', 'aliases'],
+          threshold: matchSorter.rankings.CONTAINS,
+        }),
+      symbols
+    )
+  }, [input])
+
+  const inputRef = useRef(null)
+
+  // allow the input to be focused
+  const focusInput = useCallback(() => {
+    if (inputRef.current) {
+      inputRef.current.focus()
+    }
+  }, [])
+
+  // focus the input when the symbol palette is opened
+  useEffect(() => {
+    if (inputRef.current) {
+      inputRef.current.focus()
+    }
+  }, [])
+
+  return (
+    <Tabs className="symbol-palette-container">
+      <div className="symbol-palette">
+        <div className="symbol-palette-header-outer">
+          <div className="symbol-palette-header">
+            <SymbolPaletteTabs categories={categories} />
+            <div className="symbol-palette-header-group">
+              <SymbolPaletteSearch setInput={setInput} inputRef={inputRef} />
+              <SymbolPaletteCloseButton />
+            </div>
+          </div>
+        </div>
+        <div className="symbol-palette-body">
+          <SymbolPaletteBody
+            categories={categories}
+            categorisedSymbols={categorisedSymbols}
+            filteredSymbols={filteredSymbols}
+            handleSelect={handleSelect}
+            focusInput={focusInput}
+          />
+        </div>
+      </div>
+    </Tabs>
+  )
+}
+SymbolPaletteContent.propTypes = {
+  handleSelect: PropTypes.func.isRequired,
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette-item.js

@@ -0,0 +1,72 @@
+import { useEffect, useRef } from 'react'
+import PropTypes from 'prop-types'
+import OLTooltip from '@/features/ui/components/ol/ol-tooltip'
+
+export default function SymbolPaletteItem({
+  focused,
+  handleSelect,
+  handleKeyDown,
+  symbol,
+}) {
+  const buttonRef = useRef(null)
+
+  // call focus() on this item when appropriate
+  useEffect(() => {
+    if (
+      focused &&
+      buttonRef.current &&
+      document.activeElement?.closest('.symbol-palette-items')
+    ) {
+      buttonRef.current.focus()
+    }
+  }, [focused])
+
+  return (
+    <OLTooltip
+      id={`symbol-${symbol.codepoint}`}
+      description={
+        <div>
+          <div className="symbol-palette-item-description">
+            {symbol.description}
+          </div>
+          <div className="symbol-palette-item-command">
+            {symbol.command}
+          </div>
+          {symbol.notes && (
+            <div className="symbol-palette-item-notes">
+              {symbol.notes}
+            </div>
+          )}
+        </div>
+      }
+      overlayProps={{ placement: 'top', trigger: ['hover', 'focus'] }}
+    >
+      <button
+        key={symbol.codepoint}
+        className="symbol-palette-item"
+        onClick={() => handleSelect(symbol)}
+        onKeyDown={handleKeyDown}
+        tabIndex={focused ? 0 : -1}
+        ref={buttonRef}
+        role="option"
+        aria-label={symbol.description}
+        aria-selected={focused ? 'true' : 'false'}
+      >
+        {symbol.character}
+      </button>
+    </OLTooltip>
+  )
+}
+
+SymbolPaletteItem.propTypes = {
+  symbol: PropTypes.shape({
+    codepoint: PropTypes.string.isRequired,
+    description: PropTypes.string.isRequired,
+    command: PropTypes.string.isRequired,
+    character: PropTypes.string.isRequired,
+    notes: PropTypes.string,
+  }),
+  handleKeyDown: PropTypes.func.isRequired,
+  handleSelect: PropTypes.func.isRequired,
+  focused: PropTypes.bool,
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette-items.js

@@ -0,0 +1,86 @@
+import { useCallback, useEffect, useState } from 'react'
+import PropTypes from 'prop-types'
+import SymbolPaletteItem from './symbol-palette-item'
+
+export default function SymbolPaletteItems({
+  items,
+  handleSelect,
+  focusInput,
+}) {
+  const [focusedIndex, setFocusedIndex] = useState(0)
+
+  // reset the focused item when the list of items changes
+  useEffect(() => {
+    setFocusedIndex(0)
+  }, [items])
+
+  // navigate through items with left and right arrows
+  const handleKeyDown = useCallback(
+    event => {
+      if (event.metaKey || event.altKey || event.ctrlKey || event.shiftKey) {
+        return
+      }
+
+      switch (event.key) {
+        // focus previous item
+        case 'ArrowLeft':
+        case 'ArrowUp':
+          setFocusedIndex(index => (index > 0 ? index - 1 : items.length - 1))
+          break
+
+        // focus next item
+        case 'ArrowRight':
+        case 'ArrowDown':
+          setFocusedIndex(index => (index < items.length - 1 ? index + 1 : 0))
+          break
+
+        // focus first item
+        case 'Home':
+          setFocusedIndex(0)
+          break
+
+        // focus last item
+        case 'End':
+          setFocusedIndex(items.length - 1)
+          break
+
+        // allow the default action
+        case 'Enter':
+        case ' ':
+          break
+
+        // any other key returns focus to the input
+        default:
+          focusInput()
+          break
+      }
+    },
+    [focusInput, items.length]
+  )
+
+  return (
+    <div className="symbol-palette-items" role="listbox" aria-label="Symbols">
+      {items.map((symbol, index) => (
+        <SymbolPaletteItem
+          key={symbol.codepoint}
+          symbol={symbol}
+          handleSelect={symbol => {
+            handleSelect(symbol)
+            setFocusedIndex(index)
+          }}
+          handleKeyDown={handleKeyDown}
+          focused={index === focusedIndex}
+        />
+      ))}
+    </div>
+  )
+}
+SymbolPaletteItems.propTypes = {
+  items: PropTypes.arrayOf(
+    PropTypes.shape({
+      codepoint: PropTypes.string.isRequired,
+    })
+  ).isRequired,
+  handleSelect: PropTypes.func.isRequired,
+  focusInput: PropTypes.func.isRequired,
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette-search.js

@@ -0,0 +1,45 @@
+import { useCallback, useEffect, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import PropTypes from 'prop-types'
+import OLFormControl from '@/features/ui/components/ol/ol-form-control'
+import useDebounce from '../../../shared/hooks/use-debounce'
+
+export default function SymbolPaletteSearch({ setInput, inputRef }) {
+  const [localInput, setLocalInput] = useState('')
+
+  // debounce the search input until a typing delay
+  const debouncedLocalInput = useDebounce(localInput, 250)
+
+  useEffect(() => {
+    setInput(debouncedLocalInput)
+  }, [debouncedLocalInput, setInput])
+
+  const { t } = useTranslation()
+
+  const inputRefCallback = useCallback(
+    element => {
+      inputRef.current = element
+    },
+    [inputRef]
+  )
+
+  return (
+    <OLFormControl
+      className="symbol-palette-search"
+      type="search"
+      ref={inputRefCallback}
+      id="symbol-palette-input"
+      aria-label="Search"
+      value={localInput}
+      placeholder={t('search') + '…'}
+      onChange={event => {
+        setLocalInput(event.target.value)
+      }}
+    />
+  )
+}
+
+SymbolPaletteSearch.propTypes = {
+  setInput: PropTypes.func.isRequired,
+  inputRef: PropTypes.object.isRequired,
+};

services/web/frontend/js/features/symbol-palette/components/symbol-palette-tabs.js

@@ -0,0 +1,22 @@
+import { TabList, Tab } from '@reach/tabs'
+import PropTypes from 'prop-types'
+
+export default function SymbolPaletteTabs({ categories }) {
+  return (
+    <TabList aria-label="Symbol Categories" className="symbol-palette-tab-list">
+      {categories.map(category => (
+        <Tab key={category.id} className="symbol-palette-tab">
+          {category.label}
+        </Tab>
+      ))}
+    </TabList>
+  )
+}
+SymbolPaletteTabs.propTypes = {
+  categories: PropTypes.arrayOf(
+    PropTypes.shape({
+      id: PropTypes.string.isRequired,
+      label: PropTypes.string.isRequired,
+    })
+  ).isRequired,
+}

services/web/frontend/js/features/symbol-palette/components/symbol-palette.js

@@ -0,0 +1,8 @@
+import SymbolPaletteContent from './symbol-palette-content'
+
+export default function SymbolPalette() {
+  const handleSelect = (symbol) => {
+    window.dispatchEvent(new CustomEvent('editor:insert-symbol', { detail: symbol }))
+  }
+  return <SymbolPaletteContent handleSelect={handleSelect} />
+}

services/web/frontend/js/features/symbol-palette/data/symbols.json

@@ -0,0 +1,872 @@
+[
+  {
+    "category": "Greek",
+    "command": "\\alpha",
+    "codepoint": "U+1D6FC",
+    "description": "Lowercase Greek letter alpha",
+    "aliases": ["a", "α"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\beta",
+    "codepoint": "U+1D6FD",
+    "description": "Lowercase Greek letter beta",
+    "aliases": ["b", "β"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\gamma",
+    "codepoint": "U+1D6FE",
+    "description": "Lowercase Greek letter gamma",
+    "aliases": ["γ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\delta",
+    "codepoint": "U+1D6FF",
+    "description": "Lowercase Greek letter delta",
+    "aliases": ["δ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\varepsilon",
+    "codepoint": "U+1D700",
+    "description": "Lowercase Greek letter epsilon, varepsilon",
+    "aliases": ["ε"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\epsilon",
+    "codepoint": "U+1D716",
+    "description": "Lowercase Greek letter epsilon lunate",
+    "aliases": ["ε"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\zeta",
+    "codepoint": "U+1D701",
+    "description": "Lowercase Greek letter zeta",
+    "aliases": ["ζ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\eta",
+    "codepoint": "U+1D702",
+    "description": "Lowercase Greek letter eta",
+    "aliases": ["η"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\vartheta",
+    "codepoint": "U+1D717",
+    "description": "Lowercase Greek letter curly theta, vartheta",
+    "aliases": ["θ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\theta",
+    "codepoint": "U+1D703",
+    "description": "Lowercase Greek letter theta",
+    "aliases": ["θ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\iota",
+    "codepoint": "U+1D704",
+    "description": "Lowercase Greek letter iota",
+    "aliases": ["ι"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\kappa",
+    "codepoint": "U+1D705",
+    "description": "Lowercase Greek letter kappa",
+    "aliases": ["κ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\lambda",
+    "codepoint": "U+1D706",
+    "description": "Lowercase Greek letter lambda",
+    "aliases": ["λ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\mu",
+    "codepoint": "U+1D707",
+    "description": "Lowercase Greek letter mu",
+    "aliases": ["μ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\nu",
+    "codepoint": "U+1D708",
+    "description": "Lowercase Greek letter nu",
+    "aliases": ["ν"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\xi",
+    "codepoint": "U+1D709",
+    "description": "Lowercase Greek letter xi",
+    "aliases": ["ξ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\pi",
+    "codepoint": "U+1D70B",
+    "description": "Lowercase Greek letter pi",
+    "aliases": ["π"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\varrho",
+    "codepoint": "U+1D71A",
+    "description": "Lowercase Greek letter rho, varrho",
+    "aliases": ["ρ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\rho",
+    "codepoint": "U+1D70C",
+    "description": "Lowercase Greek letter rho",
+    "aliases": ["ρ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\sigma",
+    "codepoint": "U+1D70E",
+    "description": "Lowercase Greek letter sigma",
+    "aliases": ["σ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\varsigma",
+    "codepoint": "U+1D70D",
+    "description": "Lowercase Greek letter final sigma, varsigma",
+    "aliases": ["ς"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\tau",
+    "codepoint": "U+1D70F",
+    "description": "Lowercase Greek letter tau",
+    "aliases": ["τ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\upsilon",
+    "codepoint": "U+1D710",
+    "description": "Lowercase Greek letter upsilon",
+    "aliases": ["υ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\phi",
+    "codepoint": "U+1D719",
+    "description": "Lowercase Greek letter phi",
+    "aliases": ["φ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\varphi",
+    "codepoint": "U+1D711",
+    "description": "Lowercase Greek letter phi, varphi",
+    "aliases": ["φ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\chi",
+    "codepoint": "U+1D712",
+    "description": "Lowercase Greek letter chi",
+    "aliases": ["χ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\psi",
+    "codepoint": "U+1D713",
+    "description": "Lowercase Greek letter psi",
+    "aliases": ["ψ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\omega",
+    "codepoint": "U+1D714",
+    "description": "Lowercase Greek letter omega",
+    "aliases": ["ω"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Gamma",
+    "codepoint": "U+00393",
+    "description": "Uppercase Greek letter Gamma",
+    "aliases": ["Γ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Delta",
+    "codepoint": "U+00394",
+    "description": "Uppercase Greek letter Delta",
+    "aliases": ["Δ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Theta",
+    "codepoint": "U+00398",
+    "description": "Uppercase Greek letter Theta",
+    "aliases": ["Θ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Lambda",
+    "codepoint": "U+0039B",
+    "description": "Uppercase Greek letter Lambda",
+    "aliases": ["Λ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Xi",
+    "codepoint": "U+0039E",
+    "description": "Uppercase Greek letter Xi",
+    "aliases": ["Ξ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Pi",
+    "codepoint": "U+003A0",
+    "description": "Uppercase Greek letter Pi",
+    "aliases": ["Π"],
+    "notes": "Use \\prod for the product."
+  },
+  {
+    "category": "Greek",
+    "command": "\\Sigma",
+    "codepoint": "U+003A3",
+    "description": "Uppercase Greek letter Sigma",
+    "aliases": ["Σ"],
+    "notes": "Use \\sum for the sum."
+  },
+  {
+    "category": "Greek",
+    "command": "\\Upsilon",
+    "codepoint": "U+003A5",
+    "description": "Uppercase Greek letter Upsilon",
+    "aliases": ["Υ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Phi",
+    "codepoint": "U+003A6",
+    "description": "Uppercase Greek letter Phi",
+    "aliases": ["Φ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Psi",
+    "codepoint": "U+003A8",
+    "description": "Uppercase Greek letter Psi",
+    "aliases": ["Ψ"],
+    "notes": ""
+  },
+  {
+    "category": "Greek",
+    "command": "\\Omega",
+    "codepoint": "U+003A9",
+    "description": "Uppercase Greek letter Omega",
+    "aliases": ["Ω"],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\neq",
+    "codepoint": "U+02260",
+    "description": "Not equal",
+    "aliases": ["!="],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\leq",
+    "codepoint": "U+02264",
+    "description": "Less than or equal",
+    "aliases": ["<="],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\geq",
+    "codepoint": "U+02265",
+    "description": "Greater than or equal",
+    "aliases": [">="],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\ll",
+    "codepoint": "U+0226A",
+    "description": "Much less than",
+    "aliases": ["<<"],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\gg",
+    "codepoint": "U+0226B",
+    "description": "Much greater than",
+    "aliases": [">>"],
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\prec",
+    "codepoint": "U+0227A",
+    "description": "Precedes",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\succ",
+    "codepoint": "U+0227B",
+    "description": "Succeeds",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\in",
+    "codepoint": "U+02208",
+    "description": "Set membership",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\notin",
+    "codepoint": "U+02209",
+    "description": "Negated set membership",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\ni",
+    "codepoint": "U+0220B",
+    "description": "Contains",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\subset",
+    "codepoint": "U+02282",
+    "description": "Subset",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\subseteq",
+    "codepoint": "U+02286",
+    "description": "Subset or equals",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\supset",
+    "codepoint": "U+02283",
+    "description": "Superset",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\simeq",
+    "codepoint": "U+02243",
+    "description": "Similar",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\approx",
+    "codepoint": "U+02248",
+    "description": "Approximate",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\equiv",
+    "codepoint": "U+02261",
+    "description": "Identical with",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\cong",
+    "codepoint": "U+02245",
+    "description": "Congruent with",
+    "notes": ""
+  },
+  {
+    "category": "Relations",
+    "command": "\\mid",
+    "codepoint": "U+02223",
+    "description": "Mid, divides, vertical bar, modulus, absolute value",
+    "notes": "Use \\lvert...\\rvert for the absolute value."
+  },
+  {
+    "category": "Relations",
+    "command": "\\nmid",
+    "codepoint": "U+02224",
+    "description": "Negated mid, not divides",
+    "notes": "Requires \\usepackage{amssymb}."
+  },
+  {
+    "category": "Relations",
+    "command": "\\parallel",
+    "codepoint": "U+02225",
+    "description": "Parallel, double vertical bar, norm",
+    "notes": "Use \\lVert...\\rVert for the norm."
+  },
+  {
+    "category": "Relations",
+    "command": "\\perp",
+    "codepoint": "U+027C2",
+    "description": "Perpendicular",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\times",
+    "codepoint": "U+000D7",
+    "description": "Cross product, multiplication",
+    "aliases": ["x"],
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\div",
+    "codepoint": "U+000F7",
+    "description": "Division",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\cap",
+    "codepoint": "U+02229",
+    "description": "Intersection",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\cup",
+    "codepoint": "U+0222A",
+    "description": "Union",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\cdot",
+    "codepoint": "U+022C5",
+    "description": "Dot product, multiplication",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\cdots",
+    "codepoint": "U+022EF",
+    "description": "Centered dots",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\bullet",
+    "codepoint": "U+02219",
+    "description": "Bullet",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\circ",
+    "codepoint": "U+025E6",
+    "description": "Circle",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\wedge",
+    "codepoint": "U+02227",
+    "description": "Wedge, logical and",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\vee",
+    "codepoint": "U+02228",
+    "description": "Vee, logical or",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\setminus",
+    "codepoint": "U+0005C",
+    "description": "Set minus, backslash",
+    "notes": "Use \\backslash for a backslash."
+  },
+  {
+    "category": "Operators",
+    "command": "\\oplus",
+    "codepoint": "U+02295",
+    "description": "Plus sign in circle",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\otimes",
+    "codepoint": "U+02297",
+    "description": "Multiply sign in circle",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\sum",
+    "codepoint": "U+02211",
+    "description": "Summation operator",
+    "notes": "Use \\Sigma for the letter Sigma."
+  },
+  {
+    "category": "Operators",
+    "command": "\\prod",
+    "codepoint": "U+0220F",
+    "description": "Product operator",
+    "notes": "Use \\Pi for the letter Pi."
+  },
+  {
+    "category": "Operators",
+    "command": "\\bigcap",
+    "codepoint": "U+022C2",
+    "description": "Intersection operator",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\bigcup",
+    "codepoint": "U+022C3",
+    "description": "Union operator",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\int",
+    "codepoint": "U+0222B",
+    "description": "Integral operator",
+    "notes": ""
+  },
+  {
+    "category": "Operators",
+    "command": "\\iint",
+    "codepoint": "U+0222C",
+    "description": "Double integral operator",
+    "notes": "Requires \\usepackage{amsmath}."
+  },
+  {
+    "category": "Operators",
+    "command": "\\iiint",
+    "codepoint": "U+0222D",
+    "description": "Triple integral operator",
+    "notes": "Requires \\usepackage{amsmath}."
+  },
+  {
+    "category": "Arrows",
+    "command": "\\leftarrow",
+    "codepoint": "U+02190",
+    "description": "Leftward arrow",
+    "aliases": ["<-"],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\rightarrow",
+    "codepoint": "U+02192",
+    "description": "Rightward arrow",
+    "aliases": ["->"],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\leftrightarrow",
+    "codepoint": "U+02194",
+    "description": "Left and right arrow",
+    "aliases": ["<->"],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\uparrow",
+    "codepoint": "U+02191",
+    "description": "Upward arrow",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\downarrow",
+    "codepoint": "U+02193",
+    "description": "Downward arrow",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\Leftarrow",
+    "codepoint": "U+021D0",
+    "description": "Is implied by",
+    "aliases": ["<="],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\Rightarrow",
+    "codepoint": "U+021D2",
+    "description": "Implies",
+    "aliases": ["=>"],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\Leftrightarrow",
+    "codepoint": "U+021D4",
+    "description": "Left and right double arrow",
+    "aliases": ["<=>"],
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\mapsto",
+    "codepoint": "U+021A6",
+    "description": "Maps to, rightward",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\nearrow",
+    "codepoint": "U+02197",
+    "description": "NE pointing arrow",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\searrow",
+    "codepoint": "U+02198",
+    "description": "SE pointing arrow",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\rightleftharpoons",
+    "codepoint": "U+021CC",
+    "description": "Right harpoon over left",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\leftharpoonup",
+    "codepoint": "U+021BC",
+    "description": "Left harpoon up",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\rightharpoonup",
+    "codepoint": "U+021C0",
+    "description": "Right harpoon up",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\leftharpoondown",
+    "codepoint": "U+021BD",
+    "description": "Left harpoon down",
+    "notes": ""
+  },
+  {
+    "category": "Arrows",
+    "command": "\\rightharpoondown",
+    "codepoint": "U+021C1",
+    "description": "Right harpoon down",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\infty",
+    "codepoint": "U+0221E",
+    "description": "Infinity",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\partial",
+    "codepoint": "U+1D715",
+    "description": "Partial differential",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\nabla",
+    "codepoint": "U+02207",
+    "description": "Nabla, del, hamilton operator",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\varnothing",
+    "codepoint": "U+02300",
+    "description": "Empty set",
+    "notes": "Requires \\usepackage{amssymb}."
+  },
+  {
+    "category": "Misc",
+    "command": "\\forall",
+    "codepoint": "U+02200",
+    "description": "For all",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\exists",
+    "codepoint": "U+02203",
+    "description": "There exists",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\neg",
+    "codepoint": "U+000AC",
+    "description": "Not sign",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\Re",
+    "codepoint": "U+0211C",
+    "description": "Real part",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\Im",
+    "codepoint": "U+02111",
+    "description": "Imaginary part",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\Box",
+    "codepoint": "U+025A1",
+    "description": "Square",
+    "notes": "Requires \\usepackage{amssymb}."
+  },
+  {
+    "category": "Misc",
+    "command": "\\triangle",
+    "codepoint": "U+025B3",
+    "description": "Triangle",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\aleph",
+    "codepoint": "U+02135",
+    "description": "Hebrew letter aleph",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\wp",
+    "codepoint": "U+02118",
+    "description": "Weierstrass letter p",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\#",
+    "codepoint": "U+00023",
+    "description": "Number sign, hashtag",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\$",
+    "codepoint": "U+00024",
+    "description": "Dollar sign",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\%",
+    "codepoint": "U+00025",
+    "description": "Percent sign",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\&",
+    "codepoint": "U+00026",
+    "description": "Et sign, and, ampersand",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\{",
+    "codepoint": "U+0007B",
+    "description": "Left curly brace",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\}",
+    "codepoint": "U+0007D",
+    "description": "Right curly brace",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\langle",
+    "codepoint": "U+027E8",
+    "description": "Left angle bracket, bra",
+    "notes": ""
+  },
+  {
+    "category": "Misc",
+    "command": "\\rangle",
+    "codepoint": "U+027E9",
+    "description": "Right angle bracket, ket",
+    "notes": ""
+  }
+]

services/web/frontend/js/features/symbol-palette/utils/categories.js

@@ -0,0 +1,44 @@
+import symbols from '../data/symbols.json'
+export function createCategories(t) {
+  return [
+    {
+      id: 'Greek',
+      label: t('category_greek'),
+    },
+    {
+      id: 'Arrows',
+      label: t('category_arrows'),
+    },
+    {
+      id: 'Operators',
+      label: t('category_operators'),
+    },
+    {
+      id: 'Relations',
+      label: t('category_relations'),
+    },
+    {
+      id: 'Misc',
+      label: t('category_misc'),
+    },
+  ]
+}
+
+export function buildCategorisedSymbols(categories) {
+  const output = {}
+
+  for (const category of categories) {
+    output[category.id] = []
+  }
+
+  for (const item of symbols) {
+    if (item.category in output) {
+      item.character = String.fromCodePoint(
+        parseInt(item.codepoint.replace(/^U\+0*/, ''), 16)
+      )
+      output[item.category].push(item)
+    }
+  }
+
+  return output
+}

services/web/frontend/js/shared/svgs/openid-logo.jsx

@@ -0,0 +1,27 @@
+function OpenIDLogo() {
+  return (
+    <svg
+      width="40"
+      height="40"
+      viewBox="0 0 40 40"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <rect width="40" height="40" fill="white" />
+      <path
+        d="M18.185415 36.042565 23.298193 32.35627 23.060446 3.090316 18.185415 6.8918455Z"
+        fill="#ff8e00"
+      />
+      <path
+        d="M18.246064 36.042565C-0.37463741 32.997945 -1.0248032 15.054095 18.13083 11.143396l0.05944 3.322396 c -13.3672163 2.225847 -11.6629563 14.187201 0 15.92785l0.05944 3.127104Z"
+        fill="#626262"
+      />
+      <path
+        d="M23.219348 14.720521c2.279219 0.01577 4.262468 1.057732 6.237225 2.117891l-2.917255 2.176115h9.317022l0.05701 -6.371868 -2.917255 2.176115C30.03396 13.32315 27.308358 11.530342 23.169615 11.496378Z"
+        fill="#626262"
+      />
+    </svg>
+  )
+}
+
+export default OpenIDLogo
+

services/web/frontend/stylesheets/bootstrap-5/modules/symbol-palette.scss

@@ -154,6 +154,8 @@
 
 .symbol-palette-close-button-outer {
   display: flex;
+  align-items: center;
+  margin-right: var(--spacing-01);
 }
 
 .symbol-palette-close-button {
@@ -163,10 +165,6 @@
     filter: var(--bs-btn-close-white-filter);
   }
 
-  margin-top: var(--spacing-04);
-  margin-left: var(--spacing-05);
-  margin-right: var(--spacing-03);
-
   .symbol-palette-unavailable & {
     visibility: hidden;
   }

services/web/locales/en.json

@@ -152,6 +152,7 @@
   "already_subscribed_try_refreshing_the_page": "Already subscribed? Try refreshing the page.",
   "also": "Also",
   "alternatively_create_new_institution_account": "Alternatively, you can create a <b>new account</b> with your institution email (<b>__email__</b>) by clicking <b>__clickText__</b>.",
+  "alternatively_create_local_admin_account": "Alternatively, you can create __appName__ local admin account.",
   "an_email_has_already_been_sent_to": "An email has already been sent to <0>__email__</0>. Please wait and try again later.",
   "an_error_occured_while_restoring_project": "An error occured while restoring the project",
   "an_error_occurred_when_verifying_the_coupon_code": "An error occurred when verifying the coupon code",
@@ -1198,6 +1199,7 @@
   "loading_prices": "loading prices",
   "loading_recent_github_commits": "Loading recent commits",
   "loading_writefull": "Loading Writefull",
+  "local_account": "Local account",
   "log_entry_description": "Log entry with level: __level__",
   "log_entry_maximum_entries": "Maximum log entries limit hit",
   "log_entry_maximum_entries_enable_stop_on_first_error": "Try to fix the first error and recompile. Often one error causes many later error messages. You can <0>Enable “Stop on first error”</0> to focus on fixing errors. We recommend fixing errors as soon as possible; letting them accumulate may lead to hard-to-debug and fatal errors. <1>Learn more</1>",
@@ -2595,8 +2597,10 @@
   "you_can_select_or_invite": "You can select or invite __count__ editor on your current plan, or upgrade to get more.",
   "you_can_select_or_invite_plural": "You can select or invite __count__ editors on your current plan, or upgrade to get more.",
   "you_can_still_use_your_premium_features": "You can still use your premium features until the pause becomes active.",
+  "you_cant_add_or_change_password_due_to_ldap_or_sso": "You can’t add or change your password because your group or organization uses LDAP or SSO.",
   "you_cant_add_or_change_password_due_to_sso": "You can’t add or change your password because your group or organization uses <0>single sign-on (SSO)</0>.",
   "you_cant_join_this_group_subscription": "You can’t join this group subscription",
+  "you_cant_reset_password_due_to_ldap_or_sso": "You can’t reset your password because your group or organization uses LDAP or SSO. Contact your system administrator.",
   "you_cant_reset_password_due_to_sso": "You can’t reset your password because your group or organization uses SSO. <0>Log in with SSO</0>.",
   "you_dont_have_any_add_ons_on_your_account": "You don’t have any add-ons on your account.",
   "you_dont_have_any_repositories": "You don’t have any repositories",

services/web/modules/authentication/ldap/app/src/LDAPAuthenticationController.mjs

@@ -0,0 +1,112 @@
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import EmailHelper from '../../../../../app/src/Features/Helpers/EmailHelper.js'
+import { handleAuthenticateErrors } from '../../../../../app/src/Features/Authentication/AuthenticationErrors.js'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import LDAPAuthenticationManager from './LDAPAuthenticationManager.mjs'
+
+const LDAPAuthenticationController = {
+  passportLogin(req, res, next) {
+    // This function is middleware which wraps the passport.authenticate middleware,
+    // so we can send back our custom `{message: {text: "", type: ""}}` responses on failure,
+    // and send a `{redir: ""}` response on success
+    passport.authenticate(
+      'ldapauth',
+      { keepSessionInfo: true },
+      async function (err, user, info, status) {
+        if (err) { //we cannot be here as long as errors are treated as fails
+          return next(err)
+        }
+        if (user) {
+          // `user` is either a user object or false
+          AuthenticationController.setAuditInfo(req, {
+            method: 'LDAP password login',
+          })
+
+          try {
+            await AuthenticationController.promises.finishLogin(user, req, res)
+	    res.status(200)
+	    return
+          } catch (err) {
+            return next(err)
+          }
+        } else {
+          if (status != 401) {
+            logger.warn(status, 'LDAP: ' + info.message)
+          }
+          if (EmailHelper.parseEmail(req.body.email)) return next() //Try local authentication
+          if (info.redir != null) {
+            return res.json({ redir: info.redir })
+          } else {
+            res.status(status || info.status || 401)
+            delete info.status
+            info.type = 'error'
+            info.key = 'invalid-password-retry-or-reset'
+            const body = { message: info }
+            const { errorReason } = info
+            if (errorReason) {
+              body.errorReason = errorReason
+              delete info.errorReason
+            }
+            return res.json(body)
+          }
+        }
+      }
+    )(req, res, next)
+  },
+  async doPassportLogin(req, profile, done) {
+    let user, info
+    try {
+      ;({ user, info } = await LDAPAuthenticationController._doPassportLogin(
+        req,
+        profile
+      ))
+    } catch (error) {
+      return done(error)
+    }
+    return done(undefined, user, info)
+  },
+  async _doPassportLogin(req, profile) {
+    const { fromKnownDevice } = AuthenticationController.getAuditInfo(req)
+    const auditLog = {
+      ipAddress: req.ip,
+      info: { method: 'LDAP password login', fromKnownDevice },
+    }
+
+    let user, isPasswordReused
+    try {
+      user = await LDAPAuthenticationManager.promises.findOrCreateUser(profile, auditLog)
+    } catch (error) {
+      return {
+        user: false,
+        info: handleAuthenticateErrors(error, req),
+      }
+    }
+    if (user && AuthenticationController.captchaRequiredForLogin(req, user)) {
+      return {
+        user: false,
+        info: {
+          text: req.i18n.translate('cannot_verify_user_not_robot'),
+          type: 'error',
+          errorReason: 'cannot_verify_user_not_robot',
+          status: 400,
+        },
+      }
+    } else if (user) {
+      user.externalAuth = 'ldap'
+      return { user, info: undefined }
+    } else { //we cannot be here, something is terribly wrong
+      logger.debug({ email : profile.mail }, 'failed LDAP log in')
+      return {
+        user: false,
+        info: {
+          type: 'error',
+          text: 'Unknown error',
+          status: 500,
+        },
+      }
+    }
+  },
+}
+
+export default LDAPAuthenticationController

services/web/modules/authentication/ldap/app/src/LDAPAuthenticationManager.mjs

@@ -0,0 +1,76 @@
+import Settings from '@overleaf/settings'
+import { callbackify } from '@overleaf/promise-utils'
+import UserCreator from '../../../../../app/src/Features/User/UserCreator.js'
+import { ParallelLoginError } from '../../../../../app/src/Features/Authentication/AuthenticationErrors.js'
+import { User } from '../../../../../app/src/models/User.js'
+import { splitFullName } from '../../../utils.mjs'
+
+const LDAPAuthenticationManager = {
+  async findOrCreateUser(profile, auditLog) {
+    //user is already authenticated in LDAP
+    const {
+      attEmail,
+      attFirstName,
+      attLastName,
+      attName,
+      attAdmin,
+      valAdmin,
+      updateUserDetailsOnLogin,
+    } = Settings.ldap
+
+    const email = Array.isArray(profile[attEmail])
+                    ? profile[attEmail][0].toLowerCase()
+                    : profile[attEmail].toLowerCase()
+    let nameParts = ["",""]
+    if ((!attFirstName || !attLastName) && attName) {
+      nameParts = splitFullName(profile[attName] || "")
+    }
+    const firstName = attFirstName ? (profile[attFirstName] || "") : nameParts[0]
+    let   lastName  = attLastName  ? (profile[attLastName]  || "") : nameParts[1]
+    if (!firstName && !lastName) lastName = email
+    let isAdmin = false
+    if( attAdmin && valAdmin ) {
+      isAdmin = (profile._groups?.length > 0) ||
+                (Array.isArray(profile[attAdmin]) ? profile[attAdmin].includes(valAdmin) :
+                                                    profile[attAdmin] === valAdmin)
+    }
+    let user = await User.findOne({ 'email': email }).exec()
+
+    if( !user ) {
+      user = await UserCreator.promises.createNewUser(
+        {
+          email: email,
+          first_name: firstName,
+          last_name: lastName,
+          isAdmin: isAdmin,
+          holdingAccount: false,
+        }
+      )
+      await User.updateOne(
+        { _id: user._id },
+        { $set : { 'emails.0.confirmedAt' : Date.now() } }
+      ).exec() //email of ldap user is confirmed
+    }
+    let userDetails = updateUserDetailsOnLogin ? { first_name : firstName, last_name: lastName } : {}
+    if( attAdmin && valAdmin ) {
+      user.isAdmin = isAdmin
+      userDetails.isAdmin = isAdmin
+    }
+    const result = await User.updateOne(
+      { _id: user._id, loginEpoch: user.loginEpoch },
+      {
+        $inc: { loginEpoch: 1 },
+        $set: userDetails,
+        $unset: { hashedPassword: "" },
+      }
+    ).exec()
+    if (result.modifiedCount !== 1) {
+      throw new ParallelLoginError()
+    }
+    return user
+  },
+}
+
+export default {
+  promises: LDAPAuthenticationManager,
+}

services/web/modules/authentication/ldap/app/src/LDAPContacts.mjs

@@ -0,0 +1,120 @@
+import Settings from '@overleaf/settings'
+import logger from '@overleaf/logger'
+import { promisify } from 'util'
+import passport from 'passport'
+import ldapjs from 'ldapauth-fork/node_modules/ldapjs/lib/index.js'
+import UserGetter from '../../../../../app/src/Features/User/UserGetter.js'
+import { splitFullName } from '../../../utils.mjs'
+
+function _searchLDAP(client, baseDN, options) {
+  return new Promise((resolve, reject) => {
+    const searchEntries = []
+    client.search(baseDN, options, (error, res) => {
+      if (error) {
+        reject(error)
+      } else {
+        res.on('searchEntry', entry => searchEntries.push(entry.object))
+        res.on('error', reject)
+        res.on('end', () => resolve(searchEntries))
+      }
+    })
+  })
+}
+
+async function fetchLDAPContacts(userId, contacts) {
+  if (!Settings.ldap?.enable || !process.env.OVERLEAF_LDAP_CONTACTS_FILTER) {
+    return []
+  }
+
+  const ldapOptions = passport._strategy('ldapauth').options.server
+  const { attEmail, attFirstName = "", attLastName = "", attName = "" } = Settings.ldap
+  const {
+    url,
+    timeout,
+    connectTimeout,
+    tlsOptions,
+    starttls,
+    bindDN,
+    bindCredentials
+  } = ldapOptions
+  const searchBase = process.env.OVERLEAF_LDAP_CONTACTS_SEARCH_BASE || ldapOptions.searchBase
+  const searchScope = process.env.OVERLEAF_LDAP_CONTACTS_SEARCH_SCOPE || 'sub'
+  const ldapConfig = { url, timeout, connectTimeout, tlsOptions }
+
+  let ldapUsers
+  let client
+
+  try {
+    await new Promise((resolve, reject) => {
+      client = ldapjs.createClient(ldapConfig)
+      client.on('error', (error) => { reject(error) })
+      client.on('connectTimeout', (error) => { reject(error) })
+      client.on('connect', () => { resolve() })
+    })
+
+    if (starttls) {
+      const starttlsAsync = promisify(client.starttls).bind(client)
+      await starttlsAsync(tlsOptions, null)
+    }
+    const bindAsync = promisify(client.bind).bind(client)
+    await bindAsync(bindDN, bindCredentials)
+
+    async function createContactsSearchFilter(client, ldapOptions, userId, contactsFilter) {
+      const searchProperty = process.env.OVERLEAF_LDAP_CONTACTS_PROPERTY
+      if (!searchProperty) {
+        return contactsFilter
+      }
+      const email = await UserGetter.promises.getUserEmail(userId)
+      const searchOptions = {
+        scope: ldapOptions.searchScope,
+        attributes: [searchProperty],
+        filter: `(${Settings.ldap.attEmail}=${email})`
+      }
+      const searchBase = ldapOptions.searchBase
+      const ldapUser = (await _searchLDAP(client, searchBase, searchOptions))[0]
+      const searchPropertyValue = ldapUser ? ldapUser[searchProperty]
+                                           : process.env.OVERLEAF_LDAP_CONTACTS_NON_LDAP_VALUE || 'IMATCHNOTHING'
+      return contactsFilter.replace(/{{userProperty}}/g, searchPropertyValue)
+    }
+
+    const filter = await createContactsSearchFilter(client, ldapOptions, userId, process.env.OVERLEAF_LDAP_CONTACTS_FILTER)
+    const searchOptions = { scope: searchScope, attributes: [attEmail, attFirstName, attLastName, attName], filter }
+
+    ldapUsers = await _searchLDAP(client, searchBase, searchOptions)
+  } catch (error) {
+    logger.warn({ error }, 'Error in fetchLDAPContacts')
+    return []
+  } finally {
+    client?.unbind()
+  }
+
+  const newLDAPContacts = ldapUsers.reduce((acc, ldapUser) => {
+    const email = Array.isArray(ldapUser[attEmail])
+                    ? ldapUser[attEmail][0]?.toLowerCase()
+                    : ldapUser[attEmail]?.toLowerCase()
+    if (!email) return acc
+    if (!contacts.some(contact => contact.email === email)) {
+      let nameParts = ["", ""]
+      if ((!attFirstName || !attLastName) && attName) {
+        nameParts = splitFullName(ldapUser[attName] || "")
+      }
+      const firstName = attFirstName ? (ldapUser[attFirstName] || "") : nameParts[0]
+      const lastName  = attLastName  ? (ldapUser[attLastName]  || "") : nameParts[1]
+      acc.push({
+        first_name: firstName,
+        last_name: lastName,
+        email: email,
+        type: 'user'
+      })
+    }
+    return acc
+  }, [])
+
+  return newLDAPContacts.sort((a, b) =>
+    a.last_name.localeCompare(b.last_name) ||
+    a.first_name.localeCompare(b.first_name) ||
+    a.email.localeCompare(b.email)
+  )
+}
+
+export default fetchLDAPContacts

services/web/modules/authentication/ldap/app/src/LDAPModuleManager.mjs

@@ -0,0 +1,112 @@
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import { Strategy as LDAPStrategy } from 'passport-ldapauth'
+import Settings from '@overleaf/settings'
+import PermissionsManager from '../../../../../app/src/Features/Authorization/PermissionsManager.js'
+import { readFilesContentFromEnv, numFromEnv, boolFromEnv } from '../../../utils.mjs'
+import LDAPAuthenticationController from './LDAPAuthenticationController.mjs'
+import fetchLDAPContacts from './LDAPContacts.mjs'
+
+const LDAPModuleManager = {
+  initSettings() {
+    Settings.ldap = {
+      enable: true,
+      placeholder:  process.env.OVERLEAF_LDAP_PLACEHOLDER || 'Username',
+      attEmail:     process.env.OVERLEAF_LDAP_EMAIL_ATT || 'mail',
+      attFirstName: process.env.OVERLEAF_LDAP_FIRST_NAME_ATT,
+      attLastName:  process.env.OVERLEAF_LDAP_LAST_NAME_ATT,
+      attName:      process.env.OVERLEAF_LDAP_NAME_ATT,
+      attAdmin:     process.env.OVERLEAF_LDAP_IS_ADMIN_ATT,
+      valAdmin:     process.env.OVERLEAF_LDAP_IS_ADMIN_ATT_VALUE,
+      updateUserDetailsOnLogin: boolFromEnv(process.env.OVERLEAF_LDAP_UPDATE_USER_DETAILS_ON_LOGIN),
+    }
+  },
+  passportSetup(passport, callback) {
+    const ldapOptions = {
+      url: process.env.OVERLEAF_LDAP_URL,
+      bindDN: process.env.OVERLEAF_LDAP_BIND_DN || "",
+      bindCredentials: process.env.OVERLEAF_LDAP_BIND_CREDENTIALS || "",
+      bindProperty: process.env.OVERLEAF_LDAP_BIND_PROPERTY,
+      searchBase: process.env.OVERLEAF_LDAP_SEARCH_BASE,
+      searchFilter: process.env.OVERLEAF_LDAP_SEARCH_FILTER,
+      searchScope: process.env.OVERLEAF_LDAP_SEARCH_SCOPE || 'sub',
+      searchAttributes: JSON.parse(process.env.OVERLEAF_LDAP_SEARCH_ATTRIBUTES || '[]'),
+      groupSearchBase: process.env.OVERLEAF_LDAP_ADMIN_SEARCH_BASE,
+      groupSearchFilter: process.env.OVERLEAF_LDAP_ADMIN_SEARCH_FILTER,
+      groupSearchScope: process.env.OVERLEAF_LDAP_ADMIN_SEARCH_SCOPE || 'sub',
+      groupSearchAttributes: ["dn"],
+      groupDnProperty: process.env.OVERLEAF_LDAP_ADMIN_DN_PROPERTY,
+      cache: boolFromEnv(process.env.OVERLEAF_LDAP_CACHE),
+      timeout: numFromEnv(process.env.OVERLEAF_LDAP_TIMEOUT),
+      connectTimeout: numFromEnv(process.env.OVERLEAF_LDAP_CONNECT_TIMEOUT),
+      starttls: boolFromEnv(process.env.OVERLEAF_LDAP_STARTTLS),
+      tlsOptions: {
+        ca: readFilesContentFromEnv(process.env.OVERLEAF_LDAP_TLS_OPTS_CA_PATH),
+        rejectUnauthorized: boolFromEnv(process.env.OVERLEAF_LDAP_TLS_OPTS_REJECT_UNAUTH),
+      }
+    }
+    try {
+      passport.use(
+        new LDAPStrategy(
+          {
+            server: ldapOptions,
+            passReqToCallback: true,
+            usernameField: 'email',
+            passwordField: 'password',
+            handleErrorsAsFailures: true,
+          },
+          LDAPAuthenticationController.doPassportLogin
+        )
+      )
+      callback(null)
+    } catch (error) {
+      callback(error)
+    }
+  },
+
+  async getContacts(userId, contacts, callback) {
+    try {
+      const newContacts = await fetchLDAPContacts(userId, contacts)
+      callback(null, newContacts)
+    } catch (error) {
+      callback(error)
+    }
+  },
+
+  initPolicy() {
+    try {
+      PermissionsManager.registerCapability('change-password', { default : true })
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+    const ldapPolicyValidator = async ({ user, subscription }) => {
+// If user is not logged in, user.externalAuth is undefined,
+// in this case allow to change password if the user has a hashedPassword
+      return user.externalAuth === 'ldap' || (user.externalAuth === undefined && !user.hashedPassword)
+    }
+    try {
+    PermissionsManager.registerPolicy(
+      'ldapPolicy',
+      { 'change-password' : false },
+      { validator: ldapPolicyValidator }
+    )
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+  },
+  async getGroupPolicyForUser(user, callback) {
+    try {
+      const userValidationMap = await PermissionsManager.promises.getUserValidationStatus({
+        user,
+        groupPolicy : { 'ldapPolicy' : true },
+        subscription : null
+      })
+      let groupPolicy = Object.fromEntries(userValidationMap)
+      callback(null,  {'groupPolicy' : groupPolicy })
+    } catch (error) {
+      callback(error)
+    }
+  },
+}
+
+export default LDAPModuleManager

services/web/modules/authentication/ldap/app/src/LDAPRouter.mjs

@@ -0,0 +1,19 @@
+import logger from '@overleaf/logger'
+import RateLimiterMiddleware from '../../../../../app/src/Features/Security/RateLimiterMiddleware.js'
+import CaptchaMiddleware from '../../../../../app/src/Features/Captcha/CaptchaMiddleware.js'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import { overleafLoginRateLimiter } from '../../../../../app/src/infrastructure/RateLimiter.js'
+import LDAPAuthenticationController from './LDAPAuthenticationController.mjs'
+
+export default {
+  apply(webRouter) {
+    logger.debug({}, 'Init LDAP router')
+    webRouter.post('/login',
+      RateLimiterMiddleware.rateLimit(overleafLoginRateLimiter), // rate limit IP (20 / 60s)
+      RateLimiterMiddleware.loginRateLimitEmail(), // rate limit email (10 / 120s)
+      CaptchaMiddleware.validateCaptcha('login'),
+      LDAPAuthenticationController.passportLogin,
+      AuthenticationController.passportLogin,
+    )
+  },
+}

services/web/modules/authentication/ldap/index.mjs

@@ -0,0 +1,17 @@
+let ldapModule = {}
+if (process.env.EXTERNAL_AUTH?.includes('ldap')) {
+  const { default: LDAPModuleManager } = await import('./app/src/LDAPModuleManager.mjs')
+  const { default: router } = await import('./app/src/LDAPRouter.mjs')
+  LDAPModuleManager.initSettings()
+  LDAPModuleManager.initPolicy()
+  ldapModule = {
+    name: 'ldap-authentication',
+    hooks: {
+      passportSetup: LDAPModuleManager.passportSetup,
+      getContacts: LDAPModuleManager.getContacts,
+      getGroupPolicyForUser: LDAPModuleManager.getGroupPolicyForUser,
+    },
+    router: router,
+  }
+}
+export default ldapModule

services/web/modules/authentication/logout.mjs

@@ -0,0 +1,18 @@
+let SAMLAuthenticationController 
+if (process.env.EXTERNAL_AUTH.includes('saml')) {
+  SAMLAuthenticationController = await import('./saml/app/src/SAMLAuthenticationController.mjs')
+}
+let OIDCAuthenticationController 
+if (process.env.EXTERNAL_AUTH.includes('oidc')) {
+  OIDCAuthenticationController = await import('./oidc/app/src/OIDCAuthenticationController.mjs')
+}
+export default async function logout(req, res, next) {
+  switch(req.user.externalAuth) {
+    case 'saml':
+      return SAMLAuthenticationController.default.passportLogout(req, res, next)
+    case 'oidc':
+      return OIDCAuthenticationController.default.passportLogout(req, res, next)
+    default: 
+      next()
+  }
+}

services/web/modules/authentication/oidc/app/src/OIDCAuthenticationController.mjs

@@ -0,0 +1,171 @@
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import Settings from '@overleaf/settings'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import UserController from '../../../../../app/src/Features/User/UserController.js'
+import ThirdPartyIdentityManager from '../../../../../app/src/Features/User/ThirdPartyIdentityManager.js'
+import OIDCAuthenticationManager from './OIDCAuthenticationManager.mjs'
+import { acceptsJson } from '../../../../../app/src/infrastructure/RequestContentTypeDetection.js'
+
+const OIDCAuthenticationController = {
+  passportLogin(req, res, next) {
+    req.session.intent = req.query.intent
+    passport.authenticate('openidconnect')(req, res, next)
+  },
+  passportLoginCallback(req, res, next) {
+    passport.authenticate(
+      'openidconnect',
+      { keepSessionInfo: true },
+      async function (err, user, info) {
+        if (err) {
+          return next(err)
+        }
+        if(req.session.intent === 'link') {
+          delete req.session.intent
+// After linking, log out from the OIDC provider and redirect back to '/user/settings'.
+// Keycloak supports this; Authentik does not (yet).
+          const logoutUrl = process.env.OVERLEAF_OIDC_LOGOUT_URL
+          const redirectUri = `${Settings.siteUrl.replace(/\/+$/, '')}/user/settings`
+          return res.redirect(`${logoutUrl}?id_token_hint=${info.idToken}&post_logout_redirect_uri=${encodeURIComponent(redirectUri)}`)
+	}
+        if (user) {
+          req.session.idToken = info.idToken
+          user.externalAuth = 'oidc'
+          // `user` is either a user object or false
+          AuthenticationController.setAuditInfo(req, {
+            method: 'OIDC login',
+          })
+          try {
+            await AuthenticationController.promises.finishLogin(user, req, res)
+          } catch (err) {
+            return next(err)
+          }
+        } else {
+          if (info.redir != null) {
+            return res.json({ redir: info.redir })
+          } else {
+            res.status(info.status || 401)
+            delete info.status
+            const body = { message: info }
+            return res.json(body)
+          }
+        }
+      }
+    )(req, res, next)
+  },
+  async doPassportLogin(req, issuer, profile, context, idToken, accessToken, refreshToken, done) {
+    let user, info
+    try {
+      if(req.session.intent === 'link') {
+        ;({ user, info } = await OIDCAuthenticationController._doLink(
+          req,
+          profile
+        ))
+      } else {
+        ;({ user, info } = await OIDCAuthenticationController._doLogin(
+          req,
+          profile
+        ))
+      }
+    } catch (error) {
+      return done(error)
+    }
+    if (user) {
+      info = {
+        ...(info || {}),
+        idToken: idToken
+      }
+    }
+    return done(null, user, info)
+  },
+  async _doLogin(req, profile) {
+    const { fromKnownDevice } = AuthenticationController.getAuditInfo(req)
+    const auditLog = {
+      ipAddress: req.ip,
+      info: { method: 'OIDC login', fromKnownDevice },
+    }
+
+    let user
+    try {
+      user = await OIDCAuthenticationManager.promises.findOrCreateUser(profile, auditLog)
+    } catch (error) {
+      logger.debug({ email : profile.emails[0].value }, `OIDC login failed: ${error}`)
+      return {
+        user: false,
+        info: {
+          type: 'error',
+          text: error.message,
+          status: 401,
+        },
+      }
+    }
+    if (user) {
+      return { user, info: undefined }
+    } else { // we cannot be here, something is terribly wrong
+      logger.debug({ email : profile.emails[0].value }, 'failed OIDC log in')
+      return {
+        user: false,
+        info: {
+          type: 'error',
+          text: 'Unknown error',
+          status: 500,
+        },
+      }
+    }
+  },
+  async _doLink(req, profile) {
+    const { user: { _id: userId }, ip } = req
+    try {
+      const auditLog = {
+        ipAddress: ip,
+        initiatorId: userId,
+      }
+      await OIDCAuthenticationManager.promises.linkAccount(userId, profile, auditLog)
+    } catch (error) {
+      logger.error(error.info, error.message)
+      return {
+        user: true,
+        info: {
+          type: 'error',
+          text: error.message,
+          status: 200,
+        },
+      }
+    }
+    return { user: true, info: undefined }
+  },
+  async unlinkAccount(req, res, next) {
+    try {
+      const { user: { _id: userId }, body: { providerId }, ip } = req
+      const auditLog = {
+        ipAddress: ip,
+        initiatorId: userId,
+      }
+      await ThirdPartyIdentityManager.promises.unlink(userId, providerId, auditLog)
+      return res.status(200).end()
+    } catch (error) {
+      logger.error(error.info, error.message)
+      return {
+        user: false,
+        info: {
+          type: 'error',
+          text: 'Can not unlink account',
+          status: 200,
+	}
+      }
+    }
+  },
+  async passportLogout(req, res, next) {
+// TODO: instead of storing idToken in session, use refreshToken to obtain a new idToken?
+    const idTokenHint = req.session.idToken
+    await UserController.doLogout(req)
+    const logoutUrl = process.env.OVERLEAF_OIDC_LOGOUT_URL
+    const redirectUri = Settings.siteUrl
+    res.redirect(`${logoutUrl}?id_token_hint=${idTokenHint}&post_logout_redirect_uri=${encodeURIComponent(redirectUri)}`)
+  },
+  passportLogoutCallback(req, res, next) {
+    const redirectUri = Settings.siteUrl
+    res.redirect(redirectUri)
+  },
+}
+export default OIDCAuthenticationController

services/web/modules/authentication/oidc/app/src/OIDCAuthenticationManager.mjs

@@ -0,0 +1,94 @@
+import Settings from '@overleaf/settings'
+import UserCreator from '../../../../../app/src/Features/User/UserCreator.js'
+import ThirdPartyIdentityManager from '../../../../../app/src/Features/User/ThirdPartyIdentityManager.js'
+import { ParallelLoginError } from '../../../../../app/src/Features/Authentication/AuthenticationErrors.js'
+import { User } from '../../../../../app/src/models/User.js'
+
+const OIDCAuthenticationManager = {
+  async findOrCreateUser(profile, auditLog) {
+    const {
+      attUserId,
+      attAdmin,
+      valAdmin,
+      updateUserDetailsOnLogin,
+      providerId,
+    } = Settings.oidc
+    const email = profile.emails[0].value
+    const oidcUserId = (attUserId === 'email') ? email : profile[attUserId]
+    const firstName = profile.name?.givenName || ""
+    const lastName  = profile.name?.familyName || ""
+    let isAdmin = false
+    if (attAdmin && valAdmin) {
+      if (attAdmin === 'email') {
+        isAdmin = (email === valAdmin)
+      } else {
+        isAdmin = (profile[attAdmin] === valAdmin)
+      }
+    }
+    const oidcUserData = null // Possibly it can be used later
+    let user
+    try {
+      user = await ThirdPartyIdentityManager.promises.login(providerId, oidcUserId, oidcUserData)
+    } catch {
+// A user with the specified OIDC ID and provider ID is not found. Search for a user with the given email.
+// If no user exists with this email, create a new user and link the OIDC account to it.
+// If a user exists but no account from the specified OIDC provider is linked to this user, link the OIDC account to this user.
+// If an account from the specified provider is already linked to this user, unlink it, and link the OIDC account to this user.
+// (Is it safe? Concider: If an account from the specified provider is already linked to this user, throw an error)
+      user = await User.findOne({ 'email': email }).exec()
+      if (!user) {
+        user = await UserCreator.promises.createNewUser(
+          {
+            email: email,
+            first_name: firstName,
+            last_name: lastName,
+            isAdmin: isAdmin,
+            holdingAccount: false,
+          }
+        )
+      }
+//    const alreadyLinked = user.thirdPartyIdentifiers.some(item => item.providerId === providerId)
+//    if (!alreadyLinked) {
+        auditLog.initiatorId = user._id
+        await ThirdPartyIdentityManager.promises.link(user._id, providerId, oidcUserId, oidcUserData, auditLog)
+        await User.updateOne(
+          { _id: user._id },
+          { $set : {
+             'emails.0.confirmedAt': Date.now(), //email of external user is confirmed
+            },
+          }
+        ).exec()
+//    } else {
+//      throw new Error(`Overleaf user ${user.email} is already linked to another ${providerId} user`)
+//    }
+    }
+
+    let userDetails = updateUserDetailsOnLogin ? { first_name : firstName, last_name: lastName } : {}
+    if (attAdmin && valAdmin) {
+      user.isAdmin = isAdmin
+      userDetails.isAdmin = isAdmin
+    }
+    const result = await User.updateOne(
+      { _id: user._id, loginEpoch: user.loginEpoch }, { $inc: { loginEpoch: 1 }, $set: userDetails },
+      {}
+    ).exec()
+
+    if (result.modifiedCount !== 1) {
+      throw new ParallelLoginError()
+    }
+    return user
+  },
+  async linkAccount(userId, profile, auditLog) {
+    const {
+      attUserId,
+      providerId,
+    } = Settings.oidc
+    const oidcUserId = (attUserId === 'email') ? profile.emails[0].value : profile[attUserId]
+    const oidcUserData = null // Possibly it can be used later
+    await ThirdPartyIdentityManager.promises.link(userId, providerId, oidcUserId, oidcUserData, auditLog)
+  },
+}
+
+export default {
+  promises: OIDCAuthenticationManager,
+}

services/web/modules/authentication/oidc/app/src/OIDCModuleManager.mjs

@@ -0,0 +1,82 @@
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import Settings from '@overleaf/settings'
+import { readFilesContentFromEnv, numFromEnv, boolFromEnv } from '../../../utils.mjs'
+import PermissionsManager from '../../../../../app/src/Features/Authorization/PermissionsManager.js'
+import OIDCAuthenticationController from './OIDCAuthenticationController.mjs'
+import { Strategy as OIDCStrategy } from 'passport-openidconnect'
+
+const OIDCModuleManager = {
+  initSettings() {
+    let providerId = process.env.OVERLEAF_OIDC_PROVIDER_ID || 'oidc'
+    Settings.oidc = {
+      enable: true,
+      providerId:   providerId,
+      identityServiceName: process.env.OVERLEAF_OIDC_IDENTITY_SERVICE_NAME || `Log in with ${Settings.oauthProviders[providerId].name}`,
+      attUserId:    process.env.OVERLEAF_OIDC_USER_ID_FIELD || 'id',
+      attAdmin:     process.env.OVERLEAF_OIDC_IS_ADMIN_FIELD,
+      valAdmin:     process.env.OVERLEAF_OIDC_IS_ADMIN_FIELD_VALUE,
+      updateUserDetailsOnLogin: boolFromEnv(process.env.OVERLEAF_OIDC_UPDATE_USER_DETAILS_ON_LOGIN),
+    }
+  },
+  passportSetup(passport, callback) {
+    const oidcOptions = {
+      issuer: process.env.OVERLEAF_OIDC_ISSUER,
+      authorizationURL: process.env.OVERLEAF_OIDC_AUTHORIZATION_URL,
+      tokenURL: process.env.OVERLEAF_OIDC_TOKEN_URL,
+      userInfoURL: process.env.OVERLEAF_OIDC_USER_INFO_URL,
+      clientID: process.env.OVERLEAF_OIDC_CLIENT_ID,
+      clientSecret: process.env.OVERLEAF_OIDC_CLIENT_SECRET,
+      callbackURL: `${Settings.siteUrl.replace(/\/+$/, '')}/oidc/login/callback`,
+      scope: process.env.OVERLEAF_OIDC_SCOPE || 'openid profile email',
+      passReqToCallback: true,
+    }
+    try {
+      passport.use(
+        new OIDCStrategy(
+          oidcOptions,
+          OIDCAuthenticationController.doPassportLogin
+        )
+      )
+      callback(null)
+    } catch (error) {
+      callback(error)
+    }
+  },
+  initPolicy() {
+    try {
+      PermissionsManager.registerCapability('change-password', { default : true })
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+    const oidcPolicyValidator = async ({ user, subscription }) => {
+// If user is not logged in, user.externalAuth is undefined,
+// in this case allow to change password if the user has a hashedPassword
+      return user.externalAuth === 'oidc' || (user.externalAuth === undefined && !user.hashedPassword)
+    }
+    try {
+    PermissionsManager.registerPolicy(
+      'oidcPolicy',
+      { 'change-password' : false },
+      { validator: oidcPolicyValidator }
+    )
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+  },
+  async getGroupPolicyForUser(user, callback) {
+    try {
+      const userValidationMap = await PermissionsManager.promises.getUserValidationStatus({
+        user,
+        groupPolicy : { 'oidcPolicy' : true },
+        subscription : null
+      })
+      let groupPolicy = Object.fromEntries(userValidationMap)
+      callback(null,  {'groupPolicy' : groupPolicy })
+    } catch (error) {
+      callback(error)
+    }
+  },
+}
+
+export default OIDCModuleManager

services/web/modules/authentication/oidc/app/src/OIDCRouter.mjs

@@ -0,0 +1,18 @@
+import logger from '@overleaf/logger'
+import UserController from '../../../../../app/src/Features/User/UserController.js'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import OIDCAuthenticationController from './OIDCAuthenticationController.mjs'
+import logout from '../../../logout.mjs'
+
+export default {
+  apply(webRouter) {
+    logger.debug({}, 'Init OIDC router')
+    webRouter.get('/oidc/login', OIDCAuthenticationController.passportLogin)
+    AuthenticationController.addEndpointToLoginWhitelist('/oidc/login')
+    webRouter.get('/oidc/login/callback', OIDCAuthenticationController.passportLoginCallback)
+    AuthenticationController.addEndpointToLoginWhitelist('/oidc/login/callback')
+    webRouter.get('/oidc/logout/callback', OIDCAuthenticationController.passportLogoutCallback)
+    webRouter.post('/user/oauth-unlink', OIDCAuthenticationController.unlinkAccount)
+    webRouter.post('/logout', logout, UserController.logout)
+  },
+}

services/web/modules/authentication/oidc/index.mjs

@@ -0,0 +1,16 @@
+let oidcModule = {}
+if (process.env.EXTERNAL_AUTH?.includes('oidc')) {
+  const { default: OIDCModuleManager } = await import('./app/src/OIDCModuleManager.mjs')
+  const { default: router } = await import('./app/src/OIDCRouter.mjs')
+  OIDCModuleManager.initSettings()
+  OIDCModuleManager.initPolicy()
+  oidcModule = {
+    name: 'oidc-authentication',
+    hooks: {
+      passportSetup: OIDCModuleManager.passportSetup,
+      getGroupPolicyForUser: OIDCModuleManager.getGroupPolicyForUser,
+    },
+    router: router,
+  }
+}
+export default oidcModule

services/web/modules/authentication/saml/app/src/SAMLAuthenticationController.mjs

@@ -0,0 +1,150 @@
+import Settings from '@overleaf/settings'
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import SAMLAuthenticationManager from './SAMLAuthenticationManager.mjs'
+import UserController from '../../../../../app/src/Features/User/UserController.js'
+import UserSessionsManager from '../../../../../app/src/Features/User/UserSessionsManager.js'
+import { handleAuthenticateErrors } from '../../../../../app/src/Features/Authentication/AuthenticationErrors.js'
+import { xmlResponse } from '../../../../../app/src/infrastructure/Response.js'
+import { readFilesContentFromEnv } from '../../../utils.mjs'
+
+const SAMLAuthenticationController = {
+  passportLogin(req, res, next) {
+    if ( passport._strategy('saml')._saml.options.authnRequestBinding === 'HTTP-POST') {
+      const csp = res.getHeader('Content-Security-Policy')
+      if (csp) {
+        res.setHeader(
+          'Content-Security-Policy',
+          csp.replace(/(?:^|\s)(default-src|form-action)[^;]*;?/g, '')
+        )
+      }
+    }
+    passport.authenticate('saml')(req, res, next)
+  },
+  passportLoginCallback(req, res, next) {
+    // This function is middleware which wraps the passport.authenticate middleware,
+    // so we can send back our custom `{message: {text: "", type: ""}}` responses on failure,
+    // and send a `{redir: ""}` response on success
+    passport.authenticate(
+      'saml',
+      { keepSessionInfo: true },
+      async function (err, user, info) {
+        if (err) {
+          return next(err)
+        }
+        if (user) {
+          // `user` is either a user object or false
+          AuthenticationController.setAuditInfo(req, {
+            method: 'SAML login',
+          })
+          try {
+            await AuthenticationController.promises.finishLogin(user, req, res)
+          } catch (err) {
+            return next(err)
+          }
+        } else {
+          if (info.redir != null) {
+            return res.json({ redir: info.redir })
+          } else {
+            res.status(info.status || 401)
+            delete info.status
+            const body = { message: info }
+            return res.json(body)
+          }
+        }
+      }
+    )(req, res, next)
+  },
+  async doPassportLogin(req, profile, done) {
+    let user, info
+    try {
+      ;({ user, info } = await SAMLAuthenticationController._doPassportLogin(
+        req,
+        profile
+      ))
+    } catch (error) {
+      return done(error)
+    }
+    return done(undefined, user, info)
+  },
+  async _doPassportLogin(req, profile) {
+    const { fromKnownDevice } = AuthenticationController.getAuditInfo(req)
+    const auditLog = {
+      ipAddress: req.ip,
+      info: { method: 'SAML login', fromKnownDevice },
+    }
+
+    let user
+    try {
+      user = await SAMLAuthenticationManager.promises.findOrCreateUser(profile, auditLog)
+    } catch (error) {
+      return {
+        user: false,
+        info: handleAuthenticateErrors(error, req),
+      }
+    }
+    if (user) {
+      user.externalAuth = 'saml'
+      req.session.saml_extce = {nameID : profile.nameID, sessionIndex : profile.sessionIndex}
+      return { user, info: undefined }
+    } else { // we cannot be here, something is terribly wrong
+      logger.debug({ email : profile.mail }, 'failed SAML log in')
+      return {
+        user: false,
+        info: {
+          type: 'error',
+          text: 'Unknown error',
+          status: 500,
+        },
+      }
+    }
+  },
+  async passportLogout(req, res, next) {
+    passport._strategy('saml').logout(req, async (err, url) => {
+      await UserController.doLogout(req)
+      if (err) return next(err)
+      res.redirect(url)
+    })
+  },
+  passportLogoutCallback(req, res, next) {
+//TODO: is it possible to close the editor?
+    passport.authenticate('saml')(req, res, (err) => {
+      if (err) return next(err)
+      res.redirect('/login');
+    })
+  },
+  async doPassportLogout(req, profile, done) {
+    let user, info
+    try {
+      ;({ user, info } = await SAMLAuthenticationController._doPassportLogout(
+        req,
+        profile
+      ))
+    } catch (error) {
+      return done(error)
+    }
+    return done(undefined, user, info)
+  },
+  async _doPassportLogout(req, profile) {
+    if (req?.session?.saml_extce?.nameID === profile.nameID &&
+        req?.session?.saml_extce?.sessionIndex === profile.sessionIndex) {
+      profile = req.user
+    }
+    await UserSessionsManager.promises.untrackSession(req.user, req.sessionID).catch(err => {
+      logger.warn({ err, userId: req.user._id }, 'failed to untrack session')
+    })
+    return { user: profile, info: undefined }
+  },
+  getSPMetadata(req, res) {
+    const samlStratery = passport._strategy('saml')
+    res.setHeader('Content-Disposition', `attachment; filename="${samlStratery._saml.options.issuer}-meta.xml"`)
+    xmlResponse(res,
+      samlStratery.generateServiceProviderMetadata(
+        readFilesContentFromEnv(process.env.OVERLEAF_SAML_DECRYPTION_CERT),
+        readFilesContentFromEnv(process.env.OVERLEAF_SAML_PUBLIC_CERT)
+      )
+    )
+  },
+}
+export default SAMLAuthenticationController

services/web/modules/authentication/saml/app/src/SAMLAuthenticationManager.mjs

@@ -0,0 +1,85 @@
+import Settings from '@overleaf/settings'
+import UserCreator from '../../../../../app/src/Features/User/UserCreator.js'
+import { ParallelLoginError } from '../../../../../app/src/Features/Authentication/AuthenticationErrors.js'
+import SAMLIdentityManager from '../../../../../app/src/Features/User/SAMLIdentityManager.js'
+import { User } from '../../../../../app/src/models/User.js'
+
+const SAMLAuthenticationManager = {
+  async findOrCreateUser(profile, auditLog) {
+    const {
+      attUserId,
+      attEmail,
+      attFirstName,
+      attLastName,
+      attAdmin,
+      valAdmin,
+      updateUserDetailsOnLogin,
+    } = Settings.saml
+    const externalUserId = profile[attUserId]
+    const email = Array.isArray(profile[attEmail])
+                    ? profile[attEmail][0].toLowerCase()
+                    : profile[attEmail].toLowerCase()
+    const firstName = attFirstName ? profile[attFirstName] : ""
+    const lastName  = attLastName  ? profile[attLastName] : email
+    let isAdmin = false
+    if (attAdmin && valAdmin) {
+      isAdmin = (Array.isArray(profile[attAdmin]) ? profile[attAdmin].includes(valAdmin) :
+                                                    profile[attAdmin] === valAdmin)
+    }
+    const providerId = '1' // for now, only one fixed IdP is supported
+// We search for a SAML user, and if none is found, we search for a user with the given email. If a user is found,
+// we update the user to be a SAML user, otherwise, we create a new SAML user with the given email. In the case of
+// multiple SAML IdPs, one would have to do something similar, or possibly report an error like
+// 'the email is associated with the wrong IdP'
+    let user = await SAMLIdentityManager.getUser(providerId, externalUserId, attUserId)
+    if (!user) {
+      user = await User.findOne({ 'email': email }).exec()
+      if (!user) {
+        user = await UserCreator.promises.createNewUser(
+          {
+            email: email,
+            first_name: firstName,
+            last_name: lastName,
+            isAdmin: isAdmin,
+            holdingAccount: false,
+            samlIdentifiers: [{ providerId: providerId }],
+          }
+        )
+      }
+      // cannot use SAMLIdentityManager.linkAccounts because affilations service is not there
+      await User.updateOne(
+        { _id: user._id },
+        {
+          $set : {
+           'emails.0.confirmedAt': Date.now(), //email of saml user is confirmed
+           'emails.0.samlProviderId': providerId,
+           'samlIdentifiers.0.providerId': providerId,
+           'samlIdentifiers.0.externalUserId': externalUserId,
+           'samlIdentifiers.0.userIdAttribute': attUserId,
+          },
+        }
+      ).exec()
+    }
+    let userDetails = updateUserDetailsOnLogin ? { first_name : firstName, last_name: lastName } : {}
+    if (attAdmin && valAdmin) {
+      user.isAdmin = isAdmin
+      userDetails.isAdmin = isAdmin
+    }
+    const result = await User.updateOne(
+      { _id: user._id, loginEpoch: user.loginEpoch },
+      {
+        $inc: { loginEpoch: 1 },
+        $set: userDetails,
+        $unset: { hashedPassword: "" },
+      },
+    ).exec()
+    if (result.modifiedCount !== 1) {
+      throw new ParallelLoginError()
+    }
+    return user
+  },
+}
+
+export default {
+  promises: SAMLAuthenticationManager,
+}

services/web/modules/authentication/saml/app/src/SAMLModuleManager.mjs

@@ -0,0 +1,102 @@
+import logger from '@overleaf/logger'
+import passport from 'passport'
+import Settings from '@overleaf/settings'
+import { readFilesContentFromEnv, numFromEnv, boolFromEnv } from '../../../utils.mjs'
+import PermissionsManager from '../../../../../app/src/Features/Authorization/PermissionsManager.js'
+import SAMLAuthenticationController from './SAMLAuthenticationController.mjs'
+import { Strategy as SAMLStrategy } from '@node-saml/passport-saml'
+
+const SAMLModuleManager = {
+  initSettings() {
+  Settings.saml = {
+    enable: true,
+    identityServiceName: process.env.OVERLEAF_SAML_IDENTITY_SERVICE_NAME || 'Log in with SAML IdP',
+    attUserId:    process.env.OVERLEAF_SAML_USER_ID_FIELD || 'nameID',
+    attEmail:     process.env.OVERLEAF_SAML_EMAIL_FIELD || 'nameID',
+    attFirstName: process.env.OVERLEAF_SAML_FIRST_NAME_FIELD || 'givenName',
+    attLastName:  process.env.OVERLEAF_SAML_LAST_NAME_FIELD || 'lastName',
+    attAdmin:     process.env.OVERLEAF_SAML_IS_ADMIN_FIELD,
+    valAdmin:     process.env.OVERLEAF_SAML_IS_ADMIN_FIELD_VALUE,
+    updateUserDetailsOnLogin: boolFromEnv(process.env.OVERLEAF_SAML_UPDATE_USER_DETAILS_ON_LOGIN),
+  }
+},
+  passportSetup(passport, callback) {
+    const samlOptions = {
+      entryPoint: process.env.OVERLEAF_SAML_ENTRYPOINT,
+      callbackUrl: `${Settings.siteUrl.replace(/\/+$/, '')}/saml/login/callback`,
+      issuer: process.env.OVERLEAF_SAML_ISSUER,
+      audience: process.env.OVERLEAF_SAML_AUDIENCE,
+      cert: readFilesContentFromEnv(process.env.OVERLEAF_SAML_IDP_CERT),
+      privateKey:  readFilesContentFromEnv(process.env.OVERLEAF_SAML_PRIVATE_KEY),
+      decryptionPvk:  readFilesContentFromEnv(process.env.OVERLEAF_SAML_DECRYPTION_PVK),
+      signatureAlgorithm: process.env.OVERLEAF_SAML_SIGNATURE_ALGORITHM,
+      additionalParams: JSON.parse(process.env.OVERLEAF_SAML_ADDITIONAL_PARAMS || '{}'),
+      additionalAuthorizeParams: JSON.parse(process.env.OVERLEAF_SAML_ADDITIONAL_AUTHORIZE_PARAMS || '{}'),
+      identifierFormat: process.env.OVERLEAF_SAML_IDENTIFIER_FORMAT,
+      acceptedClockSkewMs: numFromEnv(process.env.OVERLEAF_SAML_ACCEPTED_CLOCK_SKEW_MS),
+      attributeConsumingServiceIndex: process.env.OVERLEAF_SAML_ATTRIBUTE_CONSUMING_SERVICE_INDEX,
+      authnContext: process.env.OVERLEAF_SAML_AUTHN_CONTEXT ? JSON.parse(process.env.OVERLEAF_SAML_AUTHN_CONTEXT) : undefined,
+      forceAuthn: boolFromEnv(process.env.OVERLEAF_SAML_FORCE_AUTHN),
+      disableRequestedAuthnContext: boolFromEnv(process.env.OVERLEAF_SAML_DISABLE_REQUESTED_AUTHN_CONTEXT),
+      skipRequestCompression: process.env.OVERLEAF_SAML_AUTHN_REQUEST_BINDING === 'HTTP-POST',  // compression should be skipped iff authnRequestBinding is POST
+      authnRequestBinding: process.env.OVERLEAF_SAML_AUTHN_REQUEST_BINDING,
+      validateInResponseTo: process.env.OVERLEAF_SAML_VALIDATE_IN_RESPONSE_TO,
+      requestIdExpirationPeriodMs: numFromEnv(process.env.OVERLEAF_SAML_REQUEST_ID_EXPIRATION_PERIOD_MS),
+      // cacheProvider: process.env.OVERLEAF_SAML_CACHE_PROVIDER,
+      logoutUrl: process.env.OVERLEAF_SAML_LOGOUT_URL,
+      logoutCallbackUrl: `${Settings.siteUrl.replace(/\/+$/, '')}/saml/logout/callback`,
+      additionalLogoutParams: JSON.parse(process.env.OVERLEAF_SAML_ADDITIONAL_LOGOUT_PARAMS || '{}'),
+      wantAssertionsSigned: boolFromEnv(process.env.OVERLEAF_SAML_WANT_ASSERTIONS_SIGNED),
+      wantAuthnResponseSigned: boolFromEnv(process.env.OVERLEAF_SAML_WANT_AUTHN_RESPONSE_SIGNED),
+      passReqToCallback: true,
+    }
+    try {
+      passport.use(
+        new SAMLStrategy(
+          samlOptions,
+          SAMLAuthenticationController.doPassportLogin,
+          SAMLAuthenticationController.doPassportLogout
+        )
+      )
+      callback(null)
+    } catch (error) {
+      callback(error)
+    }
+  },
+  initPolicy() {
+    try {
+      PermissionsManager.registerCapability('change-password', { default : true })
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+    const samlPolicyValidator = async ({ user, subscription }) => {
+// If user is not logged in, user.externalAuth is undefined,
+// in this case allow to change password if the user has a hashedPassword
+      return user.externalAuth === 'saml' || (user.externalAuth === undefined && !user.hashedPassword)
+    }
+    try {
+    PermissionsManager.registerPolicy(
+      'samlPolicy',
+      { 'change-password' : false },
+      { validator: samlPolicyValidator }
+    )
+    } catch (error) {
+      logger.info({}, error.message)
+    }
+  },
+  async getGroupPolicyForUser(user, callback) {
+    try {
+      const userValidationMap = await PermissionsManager.promises.getUserValidationStatus({
+        user,
+        groupPolicy : { 'samlPolicy' : true },
+        subscription : null
+      })
+      let groupPolicy = Object.fromEntries(userValidationMap)
+      callback(null,  {'groupPolicy' : groupPolicy })
+    } catch (error) {
+      callback(error)
+    }
+  },
+}
+
+export default SAMLModuleManager

services/web/modules/authentication/saml/app/src/SAMLNonCsrfRouter.mjs

@@ -0,0 +1,11 @@
+import logger from '@overleaf/logger'
+import SAMLAuthenticationController from './SAMLAuthenticationController.mjs'
+
+export default {
+  apply(webRouter) {
+    logger.debug({}, 'Init SAML NonCsrfRouter')
+    webRouter.post('/saml/login/callback', SAMLAuthenticationController.passportLoginCallback)
+    webRouter.get ('/saml/logout/callback', SAMLAuthenticationController.passportLogoutCallback)
+    webRouter.post('/saml/logout/callback', SAMLAuthenticationController.passportLogoutCallback)
+  },
+}

services/web/modules/authentication/saml/app/src/SAMLRouter.mjs

@@ -0,0 +1,16 @@
+import logger from '@overleaf/logger'
+import AuthenticationController from '../../../../../app/src/Features/Authentication/AuthenticationController.js'
+import UserController from '../../../../../app/src/Features/User/UserController.js'
+import SAMLAuthenticationController from './SAMLAuthenticationController.mjs'
+import logout from '../../../logout.mjs'
+
+export default {
+  apply(webRouter) {
+    logger.debug({}, 'Init SAML router')
+    webRouter.get('/saml/login', SAMLAuthenticationController.passportLogin)
+    AuthenticationController.addEndpointToLoginWhitelist('/saml/login')
+    webRouter.get('/saml/meta', SAMLAuthenticationController.getSPMetadata)
+    AuthenticationController.addEndpointToLoginWhitelist('/saml/meta')
+    webRouter.post('/logout', logout, UserController.logout)
+  },
+}

services/web/modules/authentication/saml/index.mjs

@@ -0,0 +1,18 @@
+let samlModule = {}
+if (process.env.EXTERNAL_AUTH?.includes('saml')) {
+  const { default: SAMLModuleManager } = await import('./app/src/SAMLModuleManager.mjs')
+  const { default: router } = await import('./app/src/SAMLRouter.mjs')
+  const { default: nonCsrfRouter } = await import('./app/src/SAMLNonCsrfRouter.mjs')
+  SAMLModuleManager.initSettings()
+  SAMLModuleManager.initPolicy()
+  samlModule = {
+    name: 'saml-authentication',
+    hooks: {
+      passportSetup: SAMLModuleManager.passportSetup,
+      getGroupPolicyForUser: SAMLModuleManager.getGroupPolicyForUser,
+    },
+    router: router,
+    nonCsrfRouter: nonCsrfRouter,
+  }
+}
+export default samlModule

services/web/modules/authentication/utils.mjs

@@ -0,0 +1,42 @@
+import fs from 'fs'
+function readFilesContentFromEnv(envVar) {
+// envVar is either a file name: 'file.pem', or string with array: '["file.pem", "file2.pem"]'
+  if (!envVar) return undefined
+  try {
+    const parsedFileNames = JSON.parse(envVar)
+    return parsedFileNames.map(filename => fs.readFileSync(filename, 'utf8'))
+  } catch (error) {
+    if (error instanceof SyntaxError) { // failed to parse, envVar must be a file name
+      return fs.readFileSync(envVar, 'utf8')
+    } else {
+      throw error
+    }
+  }
+}
+function numFromEnv(env) {
+  return env ? Number(env) : undefined
+}
+function boolFromEnv(env) {
+  if (env === undefined || env === null) return undefined
+  if (typeof env === "string") {
+    const envLower = env.toLowerCase()
+    if (envLower === 'true') return true
+    if (envLower === 'false') return false
+  }
+  throw new Error("Invalid value for boolean envirionment variable")
+}
+
+function splitFullName(fullName) {
+  fullName = fullName.trim();
+  let lastSpaceIndex = fullName.lastIndexOf(' ');
+  let firstNames = fullName.substring(0, lastSpaceIndex).trim();
+  let lastName = fullName.substring(lastSpaceIndex + 1).trim();
+  return [firstNames, lastName];
+}
+
+export {
+  readFilesContentFromEnv,
+  numFromEnv,
+  boolFromEnv,
+  splitFullName,
+}

services/web/modules/launchpad/app/src/LaunchpadController.mjs

@@ -154,7 +154,8 @@ function registerExternalAuthAdmin(authMethod) {
       await User.updateOne(
         { _id: user._id },
         {
-          $set: { isAdmin: true, emails: [{ email, reversedHostname }] },
+          $set: { isAdmin: true, emails: [{ email, reversedHostname, 'confirmedAt' : Date.now() }] },
+          $unset: { 'hashedPassword': "" }, // external-auth user must not have a hashedPassword
         }
       ).exec()
     } catch (err) {

services/web/modules/launchpad/app/views/launchpad.pug

@@ -126,6 +126,45 @@ block content
 															span(data-ol-inflight="idle") #{translate("register")}
 															span(hidden data-ol-inflight="pending") #{translate("registering")}…
 
+												h3 #{translate('local_account')}
+												p
+													| #{translate('alternatively_create_local_admin_account')}
+
+												form(
+													data-ol-async-form
+													data-ol-register-admin
+													action="/launchpad/register_admin"
+													method="POST"
+												)
+													input(name='_csrf', type='hidden', value=csrfToken)
+													+formMessages()
+													.form-group
+														label(for='email') #{translate("email")}
+														input.form-control(
+															type='email',
+															name='email',
+															placeholder="email@example.com"
+															autocomplete="username"
+															required,
+															autofocus="true"
+														)
+													.form-group
+														label(for='password') #{translate("password")}
+														input.form-control#passwordField(
+															type='password',
+															name='password',
+															placeholder="********",
+															autocomplete="new-password"
+															required,
+														)
+													.actions
+														button.btn-primary.btn(
+															type='submit'
+															data-ol-disabled-inflight
+														)
+															span(data-ol-inflight="idle") #{translate("register")}
+															span(hidden data-ol-inflight="pending") #{translate("registering")}…
+
 											// Saml Form
 											if authMethod === 'saml'
 												h3 #{translate('saml')}
@@ -137,6 +176,35 @@ block content
 													data-ol-register-admin
 													action="/launchpad/register_saml_admin"
 													method="POST"
+												)
+													input(name='_csrf', type='hidden', value=csrfToken)
+													+formMessages()
+													.form-group
+														label(for='email') #{translate("email")}
+														input.form-control(
+															name='email',
+															placeholder="email@example.com"
+															autocomplete="username"
+															required,
+															autofocus="true"
+														)
+													.actions
+														button.btn-primary.btn(
+															type='submit'
+															data-ol-disabled-inflight
+														)
+															span(data-ol-inflight="idle") #{translate("register")}
+															span(hidden data-ol-inflight="pending") #{translate("registering")}…
+
+												h3 #{translate('local_account')}
+												p
+													| #{translate('alternatively_create_local_admin_account')}
+
+												form(
+													data-ol-async-form
+													data-ol-register-admin
+													action="/launchpad/register_admin"
+													method="POST"
 												)
 													input(name='_csrf', type='hidden', value=csrfToken)
 													+formMessages()
@@ -150,6 +218,15 @@ block content
 															required,
 															autofocus="true"
 														)
+													.form-group
+														label(for='password') #{translate("password")}
+														input.form-control#passwordField(
+															type='password',
+															name='password',
+															placeholder="********",
+															autocomplete="new-password"
+															required,
+														)
 													.actions
 														button.btn-primary.btn(
 															type='submit'
@@ -220,7 +297,7 @@ block content
 												p
 													a(href="/admin").btn.btn-info
 														| Go To Admin Panel
-													|  
+												p
 													a(href="/project").btn.btn-primary
 														| Start Using #{settings.appName}
 												br

services/web/modules/symbol-palette/index.mjs

@@ -0,0 +1,2 @@
+import logger from '@overleaf/logger'
+logger.debug({}, 'Enable Symbol Palette')

services/web/modules/track-changes/app/src/TrackChangesController.js

@@ -0,0 +1,177 @@
+const ChatApiHandler = require('../../../../app/src/Features/Chat/ChatApiHandler')
+const ChatManager = require('../../../../app/src/Features/Chat/ChatManager')
+const EditorRealTimeController = require('../../../../app/src/Features/Editor/EditorRealTimeController')
+const SessionManager = require('../../../../app/src/Features/Authentication/SessionManager')
+const UserInfoManager = require('../../../../app/src/Features/User/UserInfoManager')
+const UserInfoController = require('../../../../app/src/Features/User/UserInfoController')
+const DocstoreManager = require('../../../../app/src/Features/Docstore/DocstoreManager')
+const DocumentUpdaterHandler = require('../../../../app/src/Features/DocumentUpdater/DocumentUpdaterHandler')
+const CollaboratorsGetter = require('../../../../app/src/Features/Collaborators/CollaboratorsGetter')
+const { Project } = require('../../../../app/src/models/Project')
+const pLimit = require('p-limit')
+
+function _transformId(doc) {
+  if (doc._id) {
+    doc.id = doc._id
+    delete doc._id
+  }
+  return doc
+}
+
+const TrackChangesController = {
+  async trackChanges(req, res, next) {
+    try {
+      const { project_id } = req.params
+      let state = req.body.on || req.body.on_for
+      if (req.body.on_for_guests && !req.body.on) state.__guests__ = true
+      await Project.updateOne({_id: project_id}, {track_changes: state}).exec()  //do not wait?
+      EditorRealTimeController.emitToRoom(project_id, 'toggle-track-changes', state)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async acceptChanges(req, res, next) {
+    try {
+      const { project_id, doc_id } = req.params
+      const change_ids = req.body.change_ids
+      EditorRealTimeController.emitToRoom(project_id, 'accept-changes', doc_id, change_ids)
+      await DocumentUpdaterHandler.promises.acceptChanges(project_id, doc_id, change_ids)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async getAllRanges(req, res, next) {
+    try {
+      const { project_id } = req.params
+      await DocumentUpdaterHandler.promises.flushProjectToMongo(project_id)
+      const ranges = await DocstoreManager.promises.getAllRanges(project_id)
+      res.json(ranges.map(_transformId))
+    } catch (err) {
+      next(err)
+    }
+  },
+  async getChangesUsers(req, res, next) {
+// This route was previously used by the frontend to retrieve names of users who made changes or comments.
+// review-panel-new no longer needs this for comments, but still relies on it for changes -
+// although the frontend knows the names of the current owner and members, it depends on the data
+// provided here to assign names to authors who have left the project but still have unaccepted changes.
+    try {
+      const { project_id } = req.params
+      const memberIds = new Set()
+      const ranges = await DocstoreManager.promises.getAllRanges(project_id)
+      ranges.forEach(range => {
+        ;[...range.ranges?.changes || [], ...range.ranges?.comments || []].forEach(item => {
+          memberIds.add(item.metadata?.user_id)
+        })
+      })
+      const limit = pLimit(3)
+      const users = await Promise.all(
+        [...memberIds].map(memberId =>
+          limit(async () => {
+            const user = await UserInfoManager.promises.getPersonalInfo(memberId)
+            return UserInfoController.formatPersonalInfo(user)
+          })
+        )
+      )
+      res.json(users)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async getThreads(req, res, next) {
+    try {
+      const { project_id } = req.params
+      const messages = await ChatApiHandler.promises.getThreads(project_id)
+      await ChatManager.promises.injectUserInfoIntoThreads(messages)
+      res.json(messages)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async sendComment(req, res, next) {
+    try {
+      const { project_id, thread_id } = req.params
+      const { content } = req.body
+      const user_id = SessionManager.getLoggedInUserId(req.session)
+      if (!user_id) throw new Error('no logged-in user')
+      const message = await ChatApiHandler.promises.sendComment(project_id, thread_id, user_id, content)
+      const user = await UserInfoManager.promises.getPersonalInfo(user_id)
+      message.user = UserInfoController.formatPersonalInfo(user)
+      EditorRealTimeController.emitToRoom(project_id, 'new-comment', thread_id, message)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async editMessage(req, res, next) {
+    try {
+      const { project_id, thread_id, message_id } = req.params
+      const { content } = req.body
+      const user_id = SessionManager.getLoggedInUserId(req.session)
+      if (!user_id) throw new Error('no logged-in user')
+      await ChatApiHandler.promises.editMessage(project_id, thread_id, message_id, user_id, content)
+      EditorRealTimeController.emitToRoom(project_id, 'edit-message', thread_id, message_id, content)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async deleteMessage(req, res, next) {
+    try {
+      const { project_id, thread_id, message_id } = req.params
+      await ChatApiHandler.promises.deleteMessage(project_id, thread_id, message_id)
+      EditorRealTimeController.emitToRoom(project_id, 'delete-message', thread_id, message_id)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async resolveThread(req, res, next) {
+    try {
+      const { project_id, doc_id, thread_id } = req.params
+      const user_id = SessionManager.getLoggedInUserId(req.session)
+      if (!user_id) throw new Error('no logged-in user')
+      const user = await UserInfoManager.promises.getPersonalInfo(user_id)
+      await ChatApiHandler.promises.resolveThread(project_id, thread_id, user_id)
+      EditorRealTimeController.emitToRoom(
+        project_id,
+        'resolve-thread',
+        thread_id,
+        UserInfoController.formatPersonalInfo(user)
+      )
+      await DocumentUpdaterHandler.promises.resolveThread(project_id, doc_id, thread_id, user_id)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async reopenThread(req, res, next) {
+    try {
+      const { project_id, doc_id, thread_id } = req.params
+      const user_id = SessionManager.getLoggedInUserId(req.session)
+      if (!user_id) throw new Error('no logged-in user')
+      await ChatApiHandler.promises.reopenThread(project_id, thread_id)
+      EditorRealTimeController.emitToRoom(project_id, 'reopen-thread', thread_id)
+      await DocumentUpdaterHandler.promises.reopenThread(project_id, doc_id, thread_id, user_id)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+  async deleteThread(req, res, next) {
+    try {
+      const { project_id, doc_id, thread_id } = req.params
+      const user_id = SessionManager.getLoggedInUserId(req.session)
+      if (!user_id) throw new Error('no logged-in user')
+      await ChatApiHandler.promises.deleteThread(project_id, thread_id)
+      EditorRealTimeController.emitToRoom(project_id, 'delete-thread', thread_id)
+      await DocumentUpdaterHandler.promises.deleteThread(project_id, doc_id, thread_id, user_id)
+      res.sendStatus(204)
+    } catch (err) {
+      next(err)
+    }
+  },
+}
+module.exports = TrackChangesController

services/web/modules/track-changes/app/src/TrackChangesRouter.js

@@ -0,0 +1,72 @@
+const logger = require('@overleaf/logger')
+const AuthorizationMiddleware = require('../../../../app/src/Features/Authorization/AuthorizationMiddleware')
+const TrackChangesController = require('./TrackChangesController')
+
+module.exports = {
+  apply(webRouter) {
+    logger.debug({}, 'Init track-changes router')
+
+    webRouter.post('/project/:project_id/track_changes',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.trackChanges
+    )
+    webRouter.post('/project/:project_id/doc/:doc_id/changes/accept',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.acceptChanges
+    )
+    webRouter.get('/project/:project_id/ranges',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.getAllRanges
+    )
+    webRouter.get('/project/:project_id/changes/users',
+     AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.getChangesUsers
+    )
+    webRouter.get(
+      '/project/:project_id/threads',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.getThreads
+    )
+    webRouter.post(
+      '/project/:project_id/thread/:thread_id/messages',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.sendComment
+    )
+    webRouter.post(
+      '/project/:project_id/thread/:thread_id/messages/:message_id/edit',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.editMessage
+    )
+    webRouter.delete(
+      '/project/:project_id/thread/:thread_id/messages/:message_id',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.deleteMessage
+    )
+    webRouter.post(
+      '/project/:project_id/doc/:doc_id/thread/:thread_id/resolve',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.resolveThread
+    )
+    webRouter.post(
+      '/project/:project_id/doc/:doc_id/thread/:thread_id/reopen',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.reopenThread
+    )
+    webRouter.delete(
+      '/project/:project_id/doc/:doc_id/thread/:thread_id',
+      AuthorizationMiddleware.blockRestrictedUserFromProject,
+      AuthorizationMiddleware.ensureUserCanReadProject,
+      TrackChangesController.deleteThread
+    )
+  },
+}

services/web/modules/track-changes/index.js

@@ -0,0 +1,2 @@
+const TrackChangesRouter = require('./app/src/TrackChangesRouter')
+module.exports = { router : TrackChangesRouter }

services/web/package.json

@@ -156,6 +156,7 @@
     "passport-ldapauth": "^2.1.4",
     "passport-local": "^1.0.0",
     "passport-oauth2": "^1.5.0",
+    "passport-openidconnect": "^0.1.2",
     "passport-orcid": "0.0.4",
     "pug": "^3.0.3",
     "pug-runtime": "^3.0.1",
@@ -206,6 +207,7 @@
     "@pollyjs/adapter-node-http": "^6.0.6",
     "@pollyjs/core": "^6.0.6",
     "@pollyjs/persister-fs": "^6.0.6",
+    "@reach/tabs": "0.18.0",
     "@replit/codemirror-emacs": "overleaf/codemirror-emacs#4394c03858f27053f8768258e9493866e06e938e",
     "@replit/codemirror-indentation-markers": "overleaf/codemirror-indentation-markers#78264032eb286bc47871569ae87bff5ca1c6c161",
     "@replit/codemirror-vim": "overleaf/codemirror-vim#1bef138382d948018f3f9b8a4d7a70ab61774e4b",