Grammar LLM container: Replaces the Language Tool container with a local (or remote) LLM plus can optionally use the original languange tools as further support too.

Language Tool- #179 : Test file under tools/languagetools_server_compose/lt-test.tex ; picky problem solved; theme problem solved
languagetools compose setup
2026-11-14 06:03:45 +01:00 · 2026-10-28 21:28:57 +00:00 · 2026-10-26 11:35:41 +00:00 · 2026-10-26 10:10:31 +00:00 · 2026-10-25 18:04:09 +00:00 · 2026-10-25 16:36:47 +00:00
562 changed files with 47807 additions and 276 deletions
@@ -8,12 +8,8 @@ assignees: ''

 <!--

-Note: If you are using www.overleaf.com and have a problem,
-      or if you would like to request a new feature please contact
-      the support team at support@overleaf.com
-
-      This form should only be used to report bugs in the
-      Community Edition release of Overleaf.
+Note: This form should only be used to report bugs in the
+      Extended CE release of Overleaf.

 -->

@@ -5,7 +5,3 @@
 ## Related issues / Pull Requests

 <!-- Fixes #xyz, Contributes to #xyz, Related to #xyz-->
-
-## Contributor Agreement
-
- [ ] I confirm I have signed the [Contributor License Agreement](https://github.com/overleaf/overleaf/blob/main/CONTRIBUTING.md#contributor-license-agreement)
@@ -0,0 +1,23 @@
+diff --git a/lib/saml.js b/lib/saml.js
+index 64180fdd7fe6302bf8da7d1ca65c01bb1ea5e2c1..7015c3b73603f624c15195a0a38c2fbf750a4c60 100644
+--- a/lib/saml.js
+++ b/lib/saml.js
+@@ -327,7 +327,8 @@ 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 {
+@@ -510,7 +511,7 @@ 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);
@@ -0,0 +1,73 @@
+diff --git a/lib/ldapauth.js b/lib/ldapauth.js
+index 88398ed31afee34c8958ad5e7a53653e1b5f6f82..0334177af8a65c7c5f9de7570924ab0f359e3f38 100644
+--- a/lib/ldapauth.js
+++ b/lib/ldapauth.js
+@@ -87,6 +87,7 @@ 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);
+ 
+@@ -126,21 +127,7 @@ 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 () {
+@@ -401,6 +388,37 @@ 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);
+  }
+};
+
+/**
+ * Authenticate given credentials against LDAP server
+ * 
+ * @private
+ * @param {string} username - The username to authenticate
+ * @param {string} password - The password to verify
+ * @param {resultCallback} callback - Result handling callback
+ * @returns {undefined}
+ */
+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'));
@@ -1,38 +1,29 @@
-# Contributing to Overleaf
+# Contributing to Overleaf CE+

 Thank you for reading this! If you'd like to report a bug or join in the development
-of Overleaf, then here are some notes on how to do that.
+of Overleaf CE+, then here are some notes on how to do that.

 ## Reporting bugs and opening issues

-If you'd like to report a bug or open an issue, please **[check if there is an existing issue](https://github.com/overleaf/overleaf/issues).**
+If you'd like to report a bug or open an issue, please **[check if there is an existing issue](https://github.com/yu-i-i/overleaf-cep).**
 If there is then please add any more information that you have, or give it a 👍.

 When submitting an issue please describe the issue as clearly as possible, including how to
 reproduce the bug, which situations it appears in, what you expected to happen, and what actually happens.
 If you can include a screenshot for front end issues that is very helpful.

-**Note**: If you are using [www.overleaf.com](www.overleaf.com) and have a problem, or if you would like to request a new feature, please contact the Support team at support@overleaf.com. Raise an issue here only to report bugs in the Community Edition release of Overleaf.

 ## Pull Requests

-See [our wiki](https://github.com/overleaf/overleaf/wiki)
+See [Overleaf wiki](https://github.com/overleaf/overleaf/wiki)
 for how to manage the Overleaf development environment and for our developer guidelines.

 We love pull requests, so be bold with them! Don't be afraid of going ahead
 and changing something, or adding a new feature. We're very happy to work with you
 to get your changes merged into Overleaf.

-If you're looking for something to work on, have a look at the [open issues](https://github.com/overleaf/overleaf/issues).
+If you're looking for something to work on, have a look at the [open issues](https://github.com/yu-i-i/overleaf-cep/issues).

 ## Security

-Please see [our security policy](https://github.com/overleaf/overleaf/security/policy) if you would like to report a potential security vulnerability.
-
-## Contributor License Agreement
-
-Before we can accept any contributions of code, we need you to agree to our
-[Contributor License Agreement](https://docs.google.com/forms/d/e/1FAIpQLSef79XH3mb7yIiMzZw-yALEegS-wyFetvjTiNBfZvf_IHD2KA/viewform?usp=sf_link).
-This is to ensure that you own the copyright of your contribution, and that you
-agree to give us a license to use it in both the open source version, and the version
-of Overleaf running at www.overleaf.com, which may have additional changes.
+Please see [Overleaf security policy](https://github.com/overleaf/overleaf/security/policy) if you would like to report a potential security vulnerability.
@@ -0,0 +1,58 @@
+# CREDITS
+
+This project includes ideas and adapted code from several open-source projects.\
+In most cases the original code has been modified, optimized, or extended.
+
+## Symbol palette
+
+The Symbol palette feature is based on the
+[original Overleaf implementation](https://github.com/overleaf/web/tree/master/frontend/js/features/symbol-palette)
+
+The original code was slightly improved, particularly in the parts related to keyboard input.
+
+## LDAP authentication
+
+LDAP authentication was inspired by [this project](https://github.com/smhaller/ldap-overleaf-sl).
+
+The project provided the idea and part of the implementation for adding LDAP users to the user's contacts.
+
+## Real-time track changes and comments
+
+The Track Changes and Comments feature exists largely in the original Overleaf codebase.\
+The missing parts were implemented based on [this code](https://github.com/ertuil/overleaf).
+
+The referenced code was fixed, optimized, and extended.
+
+## Sandboxed compiles
+
+The Sandboxed Compiles feature was until recently largely present in the original Overleaf codebase.\
+The missing parts were implemented in this project.
+
+## Import file from external URL
+
+The "From External URL" feature exists in the original Overleaf code.\
+The missing proxy component was implemented in this project.
+
+## Git integration
+
+The Git integration feature includes parts of the frontend code
+from [here](https://github.com/ayaka-notes/overleaf-pro/tree/feat-git-bridge)
+
+## GitHub synchronization
+
+The GitHub synchronization feature includes parts of the frontend code and the OAuth2 backend implementation
+from [here](https://github.com/ayaka-notes/overleaf-pro/commit/06a30fe9a0ed75e5ab40b50a8a4e94f43161cf71).
+
+## Sign Up page
+
+The Sign Up page is based on [this code](https://github.com/ayaka-notes/overleaf-pro/tree/feat-public-registeration).
+
+## Python script runner
+
+The Python script runner feature is the original Overleaf implementation, which
+[was hidden behind a paywall](https://github.com/overleaf/overleaf/commit/b90a8500d5df763d1a9b00352928a79c7e247de7) in later releases.
+
+# Acknowledgments
+
+Thanks to the users of the project for valuable feedback, suggestions,
+and help in identifying and fixing bugs.
@@ -6,52 +6,66 @@
 <h4 align="center">An open-source online real-time collaborative LaTeX editor.</h4>

 <p align="center">
-  <a href="https://github.com/overleaf/overleaf/wiki">Wiki</a> •
+  <a href="https://github.com/yu-i-i/overleaf-cep/wiki">Wiki</a> •
  <a href="https://www.overleaf.com/for/enterprises">Server Pro</a> •
-  <a href="#contributing">Contributing</a> •
-  <a href="https://mailchi.mp/overleaf.com/community-edition-and-server-pro">Mailing List</a> •
  <a href="#authors">Authors</a> •
  <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 CE+
 </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 (CE+)
+
+The present "extended" version of Overleaf CE includes:
+
+- Sandboxed compiles with TeX Live image selection
+- Sign Up page
+- LDAP authentication
+- SAML authentication
+- OpenID Connect authentication
+- Real-time track changes and comments
+- Symbol palette
+- Template gallery
+- Import file from external URL
+- Git integration
+- GitHub synchronization
+- Zotero integration
+- Reference Search and Pick Tool
+- Document Import (`.docx`, `.md`) and Export (`.docx`, `.md`, `.html`) 
+- Advanced administrator tools for managing user accounts and projects
+- Python script runner
+- Logo tools

 > [!CAUTION]
-> Overleaf Community Edition is intended for use in environments where **all** users are trusted. Community Edition is **not** appropriate for scenarios where isolation of users is required due to Sandbox Compiles not being available. When not using Sandboxed Compiles, users have full read and write access to the `sharelatex` container resources (filesystem, network, environment variables) when running LaTeX compiles.
+> Overleaf Community Edition is intended for use in environments where **all** users are trusted. Community Edition is **not** appropriate for scenarios where isolation of users is required due to Sandbox Compiles not being available. When not using Sandboxed Compiles, users have full read and write access to the `sharelatex` container resources (filesystem, network, environment variables) when running LaTeX compiles. 
+Therefore, in any environment where not all users can be fully trusted, it is strongly recommended to enable the Sandboxed Compiles feature available in the Extended Community Edition.

-For more information on Sandbox Compiles check out our [documentation](https://docs.overleaf.com/on-premises/configuration/overleaf-toolkit/server-pro-only-configuration/sandboxed-compiles).
+For more information on Sandbox Compiles check out Overleaf [documentation](https://docs.overleaf.com/on-premises/configuration/overleaf-toolkit/server-pro-only-configuration/sandboxed-compiles).

 ## 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/).
-
-## Upgrading
-
-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.
+Detailed installation instructions can be found in the [Overleaf Toolkit](https://github.com/overleaf/toolkit/).
+Configuration details and release history for the Extended Community Edition can be found on the [Extended CE Wiki Page](https://github.com/yu-i-i/overleaf-cep/wiki).

 ## Overleaf Docker Image

 This repo contains two dockerfiles, [`Dockerfile-base`](server-ce/Dockerfile-base), which builds the
-`sharelatex/sharelatex-base` image, and [`Dockerfile`](server-ce/Dockerfile) which builds the
-`sharelatex/sharelatex` (or "community") image.
+`sharelatex/sharelatex-base:ext-ce` image, and [`Dockerfile`](server-ce/Dockerfile) which builds the
+`sharelatex/sharelatex:ext-ce` image.

 The Base image generally contains the basic dependencies like `wget`, plus `texlive`.
-We split this out because it's a pretty heavy set of
+This is split out because it's a pretty heavy set of
 dependencies, and it's nice to not have to rebuild all of that every time.

 The `sharelatex/sharelatex` image extends the base image and adds the actual Overleaf code
@@ -59,22 +73,22 @@ and services.

 Use `make build-base` and `make build-community` from `server-ce/` to build these images.

-We use the [Phusion base-image](https://github.com/phusion/baseimage-docker)
-(which is extended by our `base` image) to provide us with a VM-like container
+The [Phusion base-image](https://github.com/phusion/baseimage-docker)
+(which is extended by the `base` image) provides a VM-like container
 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.
+manager to manage services, and init scripts from the `server-ce/runit`
+folder are added.

 ## Authors

-[The Overleaf Team](https://www.overleaf.com/about)
+[The Overleaf Team](https://www.overleaf.com/about)\
+[yu-i-i](https://github.com/yu-i-i), [davrot](https://github.com/davrot) — CE extensions; references to adapted code are listed in [`CREDITS`](CREDITS.md). See also the authors of individual commits.

 ## License

 The code in this repository is released under the GNU AFFERO GENERAL PUBLIC LICENSE, version 3. A copy can be found in the [`LICENSE`](LICENSE) file.

-Copyright (c) Overleaf, 2014-2025.
+Copyright (c) Overleaf, 2014-2026.\
+Copyright (c) @yu-i-i, @davrot, 2024-2026, for CE extensions.
+
+Portions of the code are derived from other open-source projects; see [`CREDITS`](CREDITS.md).
@@ -33,7 +33,7 @@ services:
      # IMPORTANT: Required for invite token generation
      # OVERLEAF_INVITE_TOKEN_SECRET: generate with `openssl rand -base64 32`

-      ENABLED_LINKED_FILE_TYPES: "project_file,project_output_file"
+      ENABLED_LINKED_FILE_TYPES: "project_file,project_output_file,zotero"

      # Enables Thumbnail generation using ImageMagick
      ENABLE_CONVERSIONS: "true"
@@ -140,6 +140,7 @@ const rawLinkedFileData = z.discriminatedUnion('provider', [
    format: z.enum(['bibtex', 'biblatex']).optional(),
    group_id: zz.routeSegment().nullish(),
    importer_id: z.string().optional(),
+    importer_name: z.string().optional(),
    v1_importer_id: z.number().optional(),
    importedAt: z.iso.datetime().optional(),
  }),
@@ -180,7 +180,9 @@
    "fast-xml-builder": "1.1.7",
    "fast-xml-parser": "5.7.3",
    "ip-address": "10.3.1",
-    "express": "patch:express@npm%3A4.22.1#~/.yarn/patches/express-npm-4.22.1-0ea5210390.patch"
+    "express": "patch:express@npm%3A4.22.1#~/.yarn/patches/express-npm-4.22.1-0ea5210390.patch",
+    "ldapauth-fork@npm:^5.0.1": "patch:ldapauth-fork@npm%3A5.0.5#~/.yarn/patches/ldapauth-fork-npm-5.0.5-c8b86f5231.patch",
+    "@node-saml/node-saml@npm:^5.1.0": "patch:@node-saml/node-saml@npm%3A5.1.0#~/.yarn/patches/@node-saml-node-saml-npm-5.1.0-f4eb6913cc.patch"
  },
  "scripts": {
    "format": "prettier --cache --cache-location ./.cache/prettier/.prettier-cache --check",
@@ -8,3 +8,6 @@ server-ce/test
 services/web/scripts/plan-prices
 services/web/scripts/translations
 services/web/scripts/ukamf
+
+# local LanguageTool ngrams data (deploy-only, not part of the image)
+tools/languagetools_server_compose
@@ -52,7 +52,7 @@ ADD server-ce/config/env.sh /etc/overleaf/env.sh
 # Configure nginx
 # ---------------
 ADD server-ce/nginx/nginx.conf.template /etc/nginx/templates/nginx.conf.template
-ADD server-ce/nginx/overleaf.conf /etc/nginx/sites-enabled/overleaf.conf
+ADD server-ce/nginx/overleaf.conf.template /etc/nginx/templates/overleaf.conf.template
 ADD server-ce/nginx/clsi-nginx.conf /etc/nginx/sites-enabled/clsi-nginx.conf


@@ -126,7 +126,9 @@ ENV GRACEFUL_SHUTDOWN_DELAY_SECONDS=1
 ENV NODE_ENV="production"
 ENV LOG_LEVEL="info"

-
+ENV GIT_BRIDGE_HOST=git-bridge
+ENV GIT_BRIDGE_PORT=8000
+ENV GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE=52428800
 EXPOSE 80

 ENTRYPOINT ["/sbin/my_init"]
@@ -24,7 +24,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 &&  apt-get install -y \
      unattended-upgrades \
      build-essential wget net-tools unzip time poppler-utils optipng strace nginx git python3 python-is-python3 zlib1g-dev libpcre3-dev gettext-base libwww-perl ca-certificates curl gnupg \
-      qpdf \
+      qpdf imagemagick ghostscript \
 # upgrade base-image, batch all the upgrades together, rather than installing them on-by-one (which is slow!)
 &&  unattended-upgrade --verbose --no-minimal-upgrade-steps \
 # install Node.js https://github.com/nodesource/distributions#nodejs
@@ -0,0 +1,7 @@
+FROM pandoc/core:3.11-alpine
+
+ENTRYPOINT []
+
+RUN apk add --no-cache zip
+
+
@@ -0,0 +1,24 @@
+# replacement for quay.io/sharelatex/pdftocairo:24.02 (clsitex PDF→JPEG)
+#
+# ALIASES: pdftocairo-ol:25.12.0
+#
+# alpine:3.24 with poppler (25.12.0, >= 24.02 required by CLSI).
+#
+# Why: CLSI convertPDFToJPEG runs `pdftocairo -jpeg ...` against this image
+# for preview (794px, q90) and thumbnail (190px, q50) JPEGs of compiled PDFs.
+#
+# The SaaS image is Ubuntu-based; alpine 3.24's poppler 25.12.0 covers exactly
+# the flags CLSI uses (-jpeg -jpegopt -singlefile -scale-to-x -scale-to-y), and
+# the image is tiny.
+#
+# images/pandoc-amd64/Dockerfile is the sibling (pandoc/core + zip). Same pattern:
+# ENTRYPOINT [] because CLSI docker-runs with an explicit command (no
+# --entrypoint override).
+
+FROM alpine:3.24
+
+ENTRYPOINT []
+
+RUN apk update \
+ && apk add --no-cache poppler-utils \
+ && rm -rf /var/cache/apk/*
@@ -0,0 +1,51 @@
+# replacement for quay.io/sharelatex/png2pdf:2026-06-24 (clsitex PNG→PDF)
+#
+# Engine: img2pdf (josch) — lossless. For PNG input the IDAT streams are
+# embedded verbatim into the PDF (no re-encode); the alpha channel becomes
+# a PDF soft mask (/SMask), also lossless. That is the mechanism of the
+# whole feature: pdfTeX copies PDF image streams cheaply, while PNGs with
+# alpha/gamma/palette/interlace are re-decoded on every compile, which is
+# what made them "slow" and what fills CLSI's slow-PNG list.
+#
+# The SaaS tool is proprietary. The Go port (go/services/clsitex/png2pdf)
+# pins the exact container contract this image fulfils:
+#   ENTRYPOINT + ["--in-place", "--", "<relpath>", ...]   CWD=/compile
+#   stdout: one "Converted <f> to PDF" line per file     (counted by Go)
+#   exit non-zero on first failure (CLSI falls back to the original PNGs)
+#
+# Why git@commit instead of `pip install img2pdf==0.6.3`:
+#   0.6.3 (2025-11-06) is the last PyPI release, and it PRE-DATES the
+#   parse_png quadratic-rewrite fix (2025-11-16, "my 311MB ARCHD at 600dpi
+#   with 17638 IDAT records went from many minutes to 320ms"). The slow-PNG
+#   list is populated by BIG PNGs (min 1MB, no upper bound), so we pin main
+#   at this commit: it is still reproducible (exact hash) and carries the
+#   fix plus the JPEG2000/ICC and pikepdf-writer-close follow-ups.
+#
+# pikepdf + pillow have musllinux cp314 wheels for this python version, so
+# no compiler is needed; git is needed only for the pinned checkout.
+
+FROM python:3.14-alpine
+
+ARG IMG2PDF_REF=0fafa2c312be50c68a07e2331a89bf4adbd274ed
+
+RUN apk update \
+ && apk add --no-cache git \
+ && pip install --no-cache-dir --disable-pip-version-check \
+    "git+https://gitlab.mister-muffin.de/josch/img2pdf.git@${IMG2PDF_REF}#egg=img2pdf" \
+    pikepdf==10.15.0 \
+    pillow==12.3.0 \
+    packaging \
+ && rm -rf /root/.cache/pip /usr/src/python/lib*
+
+# shim: arg parsing, leading-dash path handling (paths derive from URL
+# paths and start with '-'), temp-file + atomic replace (input must survive
+# a failed conversion — CLSI renames the untouched original as fallback),
+# and the "Converted <f> to PDF" stdout line Go counts.
+COPY server-ce/png2pdf/png2pdf.sh /usr/local/bin/png2pdf
+RUN chmod 0755 /usr/local/bin/png2pdf
+
+# The Go runner passes the arg list ["--in-place", "--", ...] as the container
+# command, never a binary name — see the pdftocairo image (ENTRYPOINT []) for
+# the contrast: that image provides the binary NAME in its command, this one
+# relies on the image's own ENTRYPOINT.
+ENTRYPOINT ["/usr/local/bin/png2pdf"]
@@ -11,20 +11,33 @@ export OVERLEAF_BASE_TAG ?= sharelatex/sharelatex-base:$(BRANCH_NAME_TAG_SAFE)-$
 export OVERLEAF_BRANCH ?= sharelatex/sharelatex:$(BRANCH_NAME_TAG_SAFE)
 export OVERLEAF_LATEST ?= sharelatex/sharelatex
 export OVERLEAF_TAG ?= sharelatex/sharelatex:$(BRANCH_NAME_TAG_SAFE)-$(MONOREPO_REVISION)
+export OVERLEAF_PANDOC_BRANCH ?= sharelatex/sharelatex-pandoc:$(BRANCH_NAME_TAG_SAFE)
+export OVERLEAF_PANDOC_LATEST ?= sharelatex/sharelatex-pandoc
+export OVERLEAF_PANDOC_TAG ?= sharelatex/sharelatex-pandoc:$(BRANCH_NAME_TAG_SAFE)-$(MONOREPO_REVISION)
+export OVERLEAF_PDFTOCAIRO ?= sharelatex/pdftocairo:24.02
+export OVERLEAF_PNG2PDF ?= sharelatex/png2pdf:2026-06-24

-all: build-base build-community
+
+all: build-base build-community build-pandoc build-pdftocairo build-png2pdf

 clean:
-	-docker rmi --force $(OVERLEAF_BASE_TAG) $(OVERLEAF_TAG)
+	-docker rmi --force $(OVERLEAF_BASE_TAG) $(OVERLEAF_TAG) $(OVERLEAF_PANDOC_TAG) $(OVERLEAF_PDFTOCAIRO) $(OVERLEAF_PNG2PDF)

 refresh-cache: refresh-cache-branch
 refresh-cache-branch:
 	docker inspect $(OVERLEAF_BASE_BRANCH) > /dev/null && docker pull $(OVERLEAF_BASE_BRANCH) || true
 	docker inspect $(OVERLEAF_BRANCH) > /dev/null && docker pull $(OVERLEAF_BRANCH) || true
+	docker inspect $(OVERLEAF_PANDOC_BRANCH) > /dev/null && docker pull $(OVERLEAF_PANDOC_BRANCH) || true
+	docker inspect $(OVERLEAF_PDFTOCAIRO) > /dev/null && docker pull $(OVERLEAF_PDFTOCAIRO) || true
+	docker inspect $(OVERLEAF_PNG2PDF) > /dev/null && docker pull $(OVERLEAF_PNG2PDF) || true
+
 refresh-cache: refresh-cache-latest
 refresh-cache-latest:
 	docker inspect $(OVERLEAF_BASE_LATEST) > /dev/null && docker pull $(OVERLEAF_BASE_LATEST) || true
 	docker inspect $(OVERLEAF_LATEST) > /dev/null && docker pull $(OVERLEAF_LATEST) || true
+	docker inspect $(OVERLEAF_PANDOC_LATEST) > /dev/null && docker pull $(OVERLEAF_PANDOC_LATEST) || true
+	docker inspect $(OVERLEAF_PDFTOCAIRO) > /dev/null && docker pull $(OVERLEAF_PDFTOCAIRO) || true
+	docker inspect $(OVERLEAF_PNG2PDF) > /dev/null && docker pull $(OVERLEAF_PNG2PDF) || true

 build-base:
 	cp .dockerignore $(MONOREPO_ROOT)
@@ -39,7 +52,6 @@ build-base:
 	  --tag $(OVERLEAF_BASE_BRANCH) \
 	  $(MONOREPO_ROOT)

-
 build-community:
 	cp .dockerignore $(MONOREPO_ROOT)
 	docker build \
@@ -54,11 +66,53 @@ build-community:
 	  --tag $(OVERLEAF_BRANCH) \
 	  $(MONOREPO_ROOT)

+build-pandoc:
+	cp .dockerignore $(MONOREPO_ROOT)
+	docker build \
+	  --build-arg BUILDKIT_INLINE_CACHE=1 \
+	  --progress=plain \
+	  --build-arg OVERLEAF_BASE_TAG \
+	  --label "com.overleaf.ce.revision=$(MONOREPO_REVISION)" \
+	  --cache-from $(OVERLEAF_PANDOC_LATEST) \
+	  --cache-from $(OVERLEAF_PANDOC_BRANCH) \
+	  --file Dockerfile-pandoc \
+	  --tag $(OVERLEAF_PANDOC_TAG) \
+	  --tag $(OVERLEAF_PANDOC_BRANCH) \
+	  $(MONOREPO_ROOT)
+
+build-pdftocairo:
+	cp .dockerignore $(MONOREPO_ROOT)
+	docker build \
+	  --build-arg BUILDKIT_INLINE_CACHE=1 \
+	  --progress=plain \
+	  --build-arg OVERLEAF_BASE_TAG \
+	  --label "com.overleaf.ce.revision=$(MONOREPO_REVISION)" \
+	  --cache-from $(OVERLEAF_PDFTOCAIRO) \
+	  --file Dockerfile-pdftocairo \
+	  --tag $(OVERLEAF_PDFTOCAIRO) \
+	  $(MONOREPO_ROOT)
+
+build-png2pdf:
+	cp .dockerignore $(MONOREPO_ROOT)
+	docker build \
+	  --build-arg BUILDKIT_INLINE_CACHE=1 \
+	  --progress=plain \
+	  --build-arg OVERLEAF_BASE_TAG \
+	  --label "com.overleaf.ce.revision=$(MONOREPO_REVISION)" \
+	  --cache-from $(OVERLEAF_PNG2PDF) \
+	  --file Dockerfile-png2pdf \
+	  --tag $(OVERLEAF_PNG2PDF) \
+	  $(MONOREPO_ROOT)
+
 push:
 	docker push $(OVERLEAF_BASE_TAG)
 	docker push $(OVERLEAF_BASE_BRANCH)
 	docker push $(OVERLEAF_TAG)
 	docker push $(OVERLEAF_BRANCH)
+	docker push $(OVERLEAF_PANDOC_TAG)
+	docker push $(OVERLEAF_PANDOC_BRANCH)
+	docker push $(OVERLEAF_PDFTOCAIRO)
+	docker push $(OVERLEAF_PNG2PDF)

 SHELLCHECK_OPTS = \
 	--shell=bash \
@@ -80,5 +134,5 @@ shellcheck_fix:
 	done

 .PHONY: all \
-	build-base build-community \
+	build-base build-community build-pandoc build-pdftocairo build-png2pdf\
 	shellcheck shellcheck_fix
@@ -5,6 +5,7 @@ export DOCUMENT_UPDATER_HOST=127.0.0.1
 export DOCUPDATER_HOST=127.0.0.1
 export FILESTORE_HOST=127.0.0.1
 export HISTORY_V1_HOST=127.0.0.1
+export LINKED_URL_PROXY_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
@@ -193,6 +193,8 @@ const settings = {
  maintenanceMessage: process.env.OVERLEAF_MAINTENANCE_MESSAGE,
  maintenanceMessageHTML: process.env.OVERLEAF_MAINTENANCE_MESSAGE_HTML,

+  enableRegiserPage: process.env.OVERLEAF_ENABLE_REGISTER_PAGE === 'true',
+
  // The name this is used to describe your Overleaf Community Edition Installation
  appName: process.env.OVERLEAF_APP_NAME || 'Overleaf Community Edition',

@@ -401,7 +403,16 @@ if (process.env.OVERLEAF_EMAIL_FROM_ADDRESS != null) {
  }

  if (
-    process.env.OVERLEAF_EMAIL_SMTP_USER != null ||
+    process.env.OVERLEAF_EMAIL_SMTP_USER != null &&
+    process.env.OVERLEAF_EMAIL_SMTP_PASS_FILE != null
+  ) {
+    settings.email.parameters.auth = {
+      user: process.env.OVERLEAF_EMAIL_SMTP_USER,
+      pass: require("fs").readFileSync(process.env.OVERLEAF_EMAIL_SMTP_PASS_FILE, "utf8")
+    }
+  }
+  else if (
+    process.env.OVERLEAF_EMAIL_SMTP_USER != null &&
    process.env.OVERLEAF_EMAIL_SMTP_PASS != null
  ) {
    settings.email.parameters.auth = {
@@ -23,6 +23,8 @@ switch (process.argv.pop()) {
          console.log('yarn install')
          // run webpack
          console.log('yarn run webpack:production')
+          // fetch Pyodide wheel bundle (numpy/matplotlib/etc.) for the python-runner module
+          console.log('yarn run pyodide:fetch')
          // uninstall webpack and frontend dependencies
          console.log('yarn workspaces focus --all --production')

@@ -0,0 +1,13 @@
+diff --git a/services/web/modules/authentication/saml/app/src/SAMLModuleManager.mjs b/services/web/modules/authentication/saml/app/src/SAMLModuleManager.mjs
+index 29e9ae52cd..335ace8209 100644
+--- a/services/web/modules/authentication/saml/app/src/SAMLModuleManager.mjs
+++ b/services/web/modules/authentication/saml/app/src/SAMLModuleManager.mjs
+@@ -26,7 +26,7 @@ const SAMLModuleManager = {
+       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),
+      idpCert: 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,
@@ -0,0 +1,20 @@
+FROM overleafcep/sharelatex:5.5.6-ext-v3.2
+
+# add normalize and sanitize to linked-url-proxy
+COPY *.patch* .
+RUN bash -ec 'for p in *.patch; do echo "=== Applying $p ==="; patch -p1 < "$p" && rm $p; done'  \
+  &&  npm install als-normalize-urlpath@2.3.0 \
+  && rm -f ./package.json.orig \
+  ./services/history-v1/storage/scripts/back_fill_file_hash.mjs.orig \
+  ./services/history-v1/test/acceptance/js/storage/back_fill_file_hash.test.mjs.orig \
+  ./services/linked-url-proxy/app/js/LinkedUrlProxyController.mjs.orig \
+  ./services/web/config/settings.defaults.js.orig \
+  ./services/web/frontend/js/features/source-editor/components/toolbar/toolbar-items.tsx.orig \
+  ./services/web/test/frontend/features/share-project-modal/components/share-project-modal.test.jsx.orig \
+  ./services/web/package.json.orig \
+  ./services/filestore/app.js.orig \
+  ./package-lock.json.orig \
+  ./package-lock.json.diff \
+  /etc/my_init.d/100_make_overleaf_data_dirs.sh.orig \
+  /etc/overleaf/settings.js.orig
+
@@ -0,0 +1,256 @@
+diff --git a/package.json b/package.json
+index 64fbd258ed..7cc3c7f9b3 100644
+--- a/package.json
+++ b/package.json
+@@ -66,6 +66,7 @@
+     "services/history-v1",
+     "services/idp",
+     "services/latexqc",
+    "services/linked-url-proxy",
+     "services/notifications",
+     "services/project-history",
+     "services/real-time",
+diff --git a/services/linked-url-proxy/Dockerfile b/services/linked-url-proxy/Dockerfile
+index 677006182c..7f2053f614 100644
+--- a/services/linked-url-proxy/Dockerfile
+++ b/services/linked-url-proxy/Dockerfile
+@@ -2,7 +2,7 @@
+ # Instead run bin/update_build_scripts from
+ # https://github.com/overleaf/internal/
+ 
+-FROM node:20.18.2 AS base
+FROM node:22.18.0 AS base
+ 
+ WORKDIR /overleaf/services/linked-url-proxy
+ 
+@@ -13,16 +13,20 @@ RUN mkdir /home/node/.config && chown node:node /home/node/.config
+ FROM base AS app
+ 
+ COPY package.json package-lock.json /overleaf/
+COPY libraries/fetch-utils/package.json /overleaf/libraries/fetch-utils/package.json
+ COPY libraries/logger/package.json /overleaf/libraries/logger/package.json
+ COPY libraries/metrics/package.json /overleaf/libraries/metrics/package.json
+COPY libraries/o-error/package.json /overleaf/libraries/o-error/package.json
+ COPY libraries/settings/package.json /overleaf/libraries/settings/package.json
+ COPY services/linked-url-proxy/package.json /overleaf/services/linked-url-proxy/package.json
+ COPY patches/ /overleaf/patches/
+ 
+ RUN cd /overleaf && npm ci --quiet
+ 
+COPY libraries/fetch-utils/ /overleaf/libraries/fetch-utils/
+ COPY libraries/logger/ /overleaf/libraries/logger/
+ COPY libraries/metrics/ /overleaf/libraries/metrics/
+COPY libraries/o-error/ /overleaf/libraries/o-error/
+ COPY libraries/settings/ /overleaf/libraries/settings/
+ COPY services/linked-url-proxy/ /overleaf/services/linked-url-proxy/
+ 
+diff --git a/services/linked-url-proxy/app/js/LinkedUrlProxyController.mjs b/services/linked-url-proxy/app/js/LinkedUrlProxyController.mjs
+index 1269eede0d..ea82f65d16 100644
+--- a/services/linked-url-proxy/app/js/LinkedUrlProxyController.mjs
+++ b/services/linked-url-proxy/app/js/LinkedUrlProxyController.mjs
+@@ -1,4 +1,6 @@
+ import dns from 'dns/promises'
+import { sanitizeUrl } from 'strict-url-sanitise'
+import normalizeUrlPath from 'als-normalize-urlpath'
+ import ipaddr from 'ipaddr.js'
+ import { URL } from 'node:url'
+ import { Transform } from 'node:stream'
+@@ -18,15 +20,7 @@ function isBlockedIp(ipStr, targetUrl) {
+   }
+ 
+   const range = addr.range()
+-  if ([
+-    'loopback',
+-    'private',
+-    'linkLocal',
+-    'multicast',
+-    'reserved',
+-    'broadcast',
+-    'unspecified'
+-  ].includes(range)) {
+  if (!['unicast'].includes(addr.range())) {
+     return true
+   }
+ 
+@@ -44,7 +38,7 @@ function isBlockedIp(ipStr, targetUrl) {
+   return false
+ }
+ 
+-async function validateSourceUrl(hostname, targetUrl) {
+async function checkUrlAccess(hostname, targetUrl) {
+   const records = await dns.lookup(hostname, { all: true }).catch(() => [])
+   if (!records.length) {
+     const err = new Error(`DNS lookup failed for ${hostname}`)
+@@ -62,22 +56,40 @@ async function validateSourceUrl(hostname, targetUrl) {
+   }
+ }
+ 
+-async function fetchValidated(urlStr, redirectCount = 0) {
+async function validateAndFetch(rawUrl, redirectCount = 0) {
+   if (redirectCount > Settings.maxRedirects) {
+     const err = new Error('Too many redirects')
+     err.info = { status: 421 }
+     throw err
+   }
+ 
+-  const url = new URL(urlStr)
+  const sanitizedUrl = sanitizeUrl(rawUrl)
+  if (!sanitizedUrl) {
+    const err = new Error(`Invalid or unsafe URL: ${rawUrl}`)
+    err.info = { status: 400 }
+    throw err
+  }
+
+  const url = new URL(sanitizedUrl)
+
+   if (!['http:', 'https:'].includes(url.protocol)) {
+     const err = new Error(`${url.protocol} protocol is not allowed`)
+     err.info = { status: 400 }
+     throw err
+   }
+ 
+-  // Validate DNS and blocked IPs
+-  await validateSourceUrl(url.hostname, urlStr)
+  const normalizedPath = normalizeUrlPath(url.pathname).pathname
+
+  if (!normalizedPath) {
+    const err = new Error(`Invalid or unsafe URL path: ${url.pathname}`)
+    err.info = { status: 400 }
+    throw err
+  }
+
+  const normalizedUrl = url.toString()
+
+  // check DNS and allowed resources
+  await checkUrlAccess(url.hostname, normalizedUrl)
+ 
+   const opts = {
+     redirect: 'manual',
+@@ -86,7 +98,7 @@ async function fetchValidated(urlStr, redirectCount = 0) {
+   }
+ 
+   try {
+-    const { stream, response } = await fetchStreamWithResponse(urlStr, opts)
+    const { stream, response } = await fetchStreamWithResponse(normalizedUrl, opts)
+ 
+     const contentLengthHeader = response.headers.get('content-length')
+     if (contentLengthHeader) {
+@@ -112,8 +124,8 @@ async function fetchValidated(urlStr, redirectCount = 0) {
+       if (status >= 300 && status < 400) {
+         const location = err.response.headers.get('Location')
+         if (location) {
+-          const nextUrl = new URL(location, url).toString()
+-          return fetchValidated(nextUrl, redirectCount + 1)
+          const nextUrl = new URL(location, normalizedUrl).toString()
+          return validateAndFetch(nextUrl, redirectCount + 1)
+         } else {
+           const e = new Error('Redirect response missing Location header')
+ 	  e.info = { status: 421 }
+@@ -141,14 +153,14 @@ async function proxy(req, res) {
+       return
+     }
+ 
+-    const { stream: upstreamStream, response, headers } = await fetchValidated(targetUrl)
+    const { stream: upstreamStream, response, headers } = await validateAndFetch(targetUrl)
+ 
+     res.statusCode = response.status || 200
+     res.setHeader('Content-Type', headers['content-type'] || 'application/octet-stream')
+     res.setHeader('Cache-Control', 'no-store')
+ 
+     function onError(err) {
+-      logger.warn({ err, url: req.url }, 'linked-url-proxy request failed')
+      logger.info({ err, url: req.url }, 'linked-url-proxy request failed')
+       try { upstreamStream.destroy() } catch (_) {}
+       if (!res.headersSent) {
+ 	let body = `Error: ${err?.message ?? String(err)}`
+@@ -163,11 +175,9 @@ async function proxy(req, res) {
+     upstreamStream.pipe(res)
+ 
+   } catch (err) {
+-    logger.warn({ err, url: req.url }, 'linked-url-proxy request failed')
+-
+-    let status = err.info.status
+    const status = err.info?.status || 500
+    logger.info({ linkedUrl: err.message, status, url: req.url }, 'linked-url-proxy request failed')
+     let body = `Error: ${err.message || String(err)}`
+-
+     try {
+       res.writeHead(status, { 'Content-Type': 'text/plain' })
+       res.end(body)
+diff --git a/services/linked-url-proxy/package.json b/services/linked-url-proxy/package.json
+index 845551c8ef..8081a80822 100644
+--- a/services/linked-url-proxy/package.json
+++ b/services/linked-url-proxy/package.json
+@@ -2,18 +2,24 @@
+   "name": "@overleaf/linked-url-proxy",
+   "description": "An API for providing linked url proxy",
+   "private": true,
+-  "type": "module",
+   "main": "app.mjs",
+   "scripts": {
+-    "start": "node app.mjs"
+    "start": "node app.mjs",
+    "nodemon": "node --watch app.mjs"
+   },
+-  "version": "0.1.0",
+  "version": "0.1.1",
+   "dependencies": {
+     "@overleaf/settings": "*",
+     "@overleaf/logger": "*",
+     "@overleaf/metrics": "*",
+     "async": "^3.2.5",
+-    "express": "^4.21.2"
+-    "ipaddr.js": "^1.9.1"
+    "express": "^4.21.2",
+    "ipaddr.js": "^1.9.1",
+    "als-normalize-urlpath": "^2.3.0",
+    "strict-url-sanitise": "^0.0.1"
+  },
+  "devDependencies": {
+    "als-normalize-urlpath": "^2.3.0",
+    "strict-url-sanitise": "^0.0.1"
+   }
+ }
+diff --git a/services/linked-url-proxy/tsconfig.json b/services/linked-url-proxy/tsconfig.json
+index c018d6e682..0639496cc8 100644
+--- a/services/linked-url-proxy/tsconfig.json
+++ b/services/linked-url-proxy/tsconfig.json
+@@ -1,7 +1,7 @@
+ {
+   "extends": "../../tsconfig.backend.json",
+   "include": [
+-    "app.js",
+    "app.mjs",
+     "app.ts",
+     "app/js/**/*",
+     "benchmarks/**/*",
+diff --git a/services/web/package.json b/services/web/package.json
+index 21da1188a2..c2c4fcfaba 100644
+--- a/services/web/package.json
+++ b/services/web/package.json
+@@ -69,6 +69,7 @@
+     "last 1 year",
+     "safari > 14"
+   ],
+
+   "dependencies": {
+     "@contentful/rich-text-html-renderer": "^16.0.2",
+     "@contentful/rich-text-types": "^16.0.2",
+@@ -92,6 +93,7 @@
+     "@xmldom/xmldom": "^0.7.13",
+     "accepts": "^1.3.7",
+     "ajv": "^8.12.0",
+    "als-normalize-urlpath": "^2.3.0",
+     "archiver": "^5.3.0",
+     "async": "^3.2.5",
+     "base-x": "^4.0.1",
+@@ -166,7 +168,8 @@
+     "request": "^2.88.2",
+     "requestretry": "^7.1.0",
+     "sanitize-html": "^2.8.1",
+-    "stripe": "^18.1.0",
+    "strict-url-sanitise": "^0.0.1",
+    "stripe": "^18.4.0",
+     "tough-cookie": "^4.0.0",
+     "tsscmp": "^1.0.6",
+     "uid-safe": "^2.1.5",
@@ -16,11 +16,18 @@ fi
 nginx_template_file="${nginx_templates_dir}/nginx.conf.template"
 nginx_config_file="${nginx_dir}/nginx.conf"

+overleaf_template_file="${nginx_templates_dir}/overleaf.conf.template"
+overleaf_config_file="${nginx_dir}/sites-enabled/overleaf.conf"
+
 if [ -f "${nginx_template_file}" ]; then
  export NGINX_KEEPALIVE_TIMEOUT="${NGINX_KEEPALIVE_TIMEOUT:-65}"
  export NGINX_WORKER_CONNECTIONS="${NGINX_WORKER_CONNECTIONS:-768}"
  export NGINX_WORKER_PROCESSES="${NGINX_WORKER_PROCESSES:-4}"
+  export MAX_UPLOAD_SIZE="${MAX_UPLOAD_SIZE:-50}"

+  export GIT_BRIDGE_HOST="${GIT_BRIDGE_HOST:-git-bridge}"
+  export GIT_BRIDGE_PORT="${GIT_BRIDGE_PORT:-8000}"
+  export GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE="${GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE:-52428800}"
  echo "Nginx: generating config file from template"

  # Note the single-quotes, they are important.
@@ -31,10 +38,20 @@ if [ -f "${nginx_template_file}" ]; then
    ${NGINX_KEEPALIVE_TIMEOUT}
    ${NGINX_WORKER_CONNECTIONS}
    ${NGINX_WORKER_PROCESSES}
+    ${MAX_UPLOAD_SIZE}
  ' \
    < "${nginx_template_file}" \
    > "${nginx_config_file}"

+  # Config git-bridge in nginx
+  envsubst '
+    ${GIT_BRIDGE_HOST}
+    ${GIT_BRIDGE_PORT}
+    ${GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE}
+  ' \
+    < "${overleaf_template_file}" \
+    > "${overleaf_config_file}"
+
  echo "Checking Nginx config"
  nginx -t

@@ -34,8 +34,8 @@ server {
    root /var/lib/overleaf/data/output/$1-$2/generated-files/$3/;
  }
  # handle output files for anonymous users
-  location ~ ^/project/([0-9a-f]+)/build/([0-9a-f-]+)/output/(.+)$ {
-    rewrite ^/project/([0-9a-f]+)/build/([0-9a-f-]+)/output/(.+)$ /$3 break;
+  location ~ ^/project/([0-9a-f-]+)/build/([0-9a-f-]+)/output/(.+)$ {
+    rewrite ^/project/([0-9a-f-]+)/build/([0-9a-f-]+)/output/(.+)$ /$3 break;
    root /var/lib/overleaf/data/output/$1/generated-files/$2/;
  }

@@ -46,7 +46,7 @@ http {
 	gzip_disable "msie6";
 	gzip_proxied any; # allow upstream server to compress.

-	client_max_body_size 50m;
+	client_max_body_size ${MAX_UPLOAD_SIZE}m;

 	# gzip_vary on;
 	# gzip_proxied any;
@@ -21,6 +21,30 @@ server {
 		proxy_send_timeout 10m;
 	}

+	# Only the git smart-HTTP endpoints of a project (/git/<project id>[.git]/...) are
+	# public. git-bridge's other routes (/status, /health_check, /metrics, /diags,
+	# /api/...) are meant for the internal network only and must not be reachable.
+	location /git/ {
+		return 404;
+	}
+
+	location ~ "^/git/[0-9a-f]{24}(\.git)?(/|$)" {
+		resolver_timeout 2s;
+		resolver 127.0.0.11 valid=10s;
+		set $git_upstream http://${GIT_BRIDGE_HOST}:${GIT_BRIDGE_PORT};
+		rewrite ^/git/(.*)$ /$1 break;
+		client_max_body_size ${GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE};
+		proxy_pass $git_upstream;
+		proxy_http_version 1.1;
+		proxy_set_header Upgrade $http_upgrade;
+		proxy_set_header Connection "upgrade";
+		proxy_set_header Host $host;
+		proxy_set_header X-Forwarded-Host $host;
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+		proxy_read_timeout 10m;
+		proxy_send_timeout 10m;
+	}
+
 	location /socket.io {
 		proxy_pass http://127.0.0.1:3026;
 		proxy_http_version 1.1;
@@ -46,6 +70,17 @@ server {
 		expires 1y;
 	}

+  # handle output.zip, which clsi builds on demand rather than writing to disk
+  location ~ ^/project/[0-9a-f]+(/user/[0-9a-f]+)?/build/[0-9a-f-]+/output/output\.zip$ {
+		proxy_pass http://127.0.0.1:4000;
+		proxy_http_version 1.1;
+		proxy_set_header Host $host;
+		proxy_set_header X-Forwarded-Host $host;
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+		proxy_read_timeout 10m;
+		proxy_send_timeout 10m;
+  }
+
  # handle output files for specific users
  location ~ ^/project/([0-9a-f]+)/user/([0-9a-f]+)/build/([0-9a-f-]+)/output/output\.([a-z.]+)$ {
 		proxy_pass http://127.0.0.1:8080; # clsi-nginx.conf
@@ -0,0 +1,83 @@
+#!/bin/sh
+# CLSI "png2pdf" container contract shim (engine: img2pdf 0.6.3, josch).
+# Replaces the proprietary quay.io/sharelatex/png2pdf:2026-06-24.
+#
+# Invoked by the CLSI docker runner (go/services/clsitex/dockerrunner.go, go/services/clsitex/png2pdf/png2pdf.go):
+#   args: ["--in-place", "--", "<relpath1>", ...]   CWD=/compile
+#   the docker runner does NOT supply a binary name in the command, so the
+#   image ENTRYPOINT is this script.
+#
+# Paths: each arg is a conversion path CLSI downloaded, RELATIVE to the
+# mounted cache dir (CWD /compile). Real CLSI derives it from the file
+# URL path (u.Path: '/'->'-') + mtime + ".opt<10-hex cacheKey>",
+# e.g. ".-uploads-filestore-a1b2c3d4-0-1-1756600000000.opta1b2c3d4a1bc"
+# (leading dash, no directory separator).
+#
+# "IN-PLACE" means "rewrite each input PATH as a PDF". CLSI then renames
+# each path to its own ".opt" cache entry and copies it into the compile
+# dir (urlcache.CommitConversion) — PER FILE and UNCONDITIONALLY (sync.go:
+# a conversion error only logs a warning). So each converted file lands
+# in the cache even in a partially-failed run; an unconverted file is
+# committed as the original-PNG fallback.
+#
+# Contract (go/services/clsitex/png2pdf/png2pdf.go):
+#   - stdout: one "Converted <f> to PDF" per converted file (Go counts
+#     lines matching ^Converted .+ to PDF$ -> stats.png2pdf).
+#   - exit non-zero if anything fails: CLSI logs a warning and commits
+#     each file's current on-disk state (converted or original).
+#
+# Why img2pdf: LOSSLESS. PNG IDAT is embedded verbatim into the PDF (no
+# re-encode); the alpha channel becomes a PDF /SMask, also lossless.
+# That is the mechanism of the feature: pdfTeX copies PDF image streams
+# cheaply, whereas PNGs with alpha/gamma/palette/interlace are re-decoded
+# from the PNG on every compile — what made them "slow". Without
+# --imgsize the image keeps its pHYs DPI, falling back to 96dpi (the same
+# default pdfLaTeX itself uses).
+#
+# Failure handling: convert to a temp + atomic replace, and CONTINUE with
+# the remaining files after a failure (their valid conversions are
+# committed by CLSI even though the run is reported failed). A failed
+# file stays exactly the original PNG CLSI downloaded.
+
+set -u
+
+# argv is exactly [--in-place]... ["--"] <files...>. The loop terminates:
+# every iteration either shifts, breaks, or exits.
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    --)       shift ; break ;;
+    --in-place) shift ;;
+    *)        echo "png2pdf: unexpected argument: $1" >&2 ; exit 2 ;;
+  esac
+done
+
+if [ "$#" -lt 1 ]; then
+  echo "png2pdf: no input files (usage: --in-place -- <png>...)" >&2
+  exit 2
+fi
+
+rc=0
+for file in "$@"; do
+  # Resolve against CWD so a leading '-' (or '.') never lands in an argv
+  # slot of img2pdf/mv, where it would be parsed as an option.
+  case "$file" in
+    / | /*) abs="$file" ;;
+    *)      abs="$(pwd)/$file" ;;
+  esac
+  tmp="${abs}.tmp"
+
+  if ! img2pdf --output "$tmp" "$abs"; then
+    echo "png2pdf: conversion failed for $file" >&2
+    rm -f -- "$tmp"
+    rc=1
+    continue
+  fi
+  if ! mv -- "$tmp" "$abs"; then
+    echo "png2pdf: failed to replace $file" >&2
+    rm -f -- "$tmp"
+    rc=1
+    continue
+  fi
+  echo "Converted $file to PDF"
+done
+exit "$rc"
@@ -1,5 +1,18 @@
 #!/bin/bash

+# Grant the service user access to the Docker socket group, same as the CLSI
+# run script. Needed for CONVERTER=pdftocairo-sandbox (filestore launches the
+# sibling conversion container through /var/run/docker.sock). Idempotent: a
+# fresh container may have no such group yet, and CLSI's run script does the
+# same thing, so just append to the membership if it exists.
+if [ -e '/var/run/docker.sock' ]; then
+  DOCKER_GROUP=$(stat -c '%g' /var/run/docker.sock)
+  if ! getent group dockeronhost >/dev/null; then
+    groupadd --non-unique --gid "${DOCKER_GROUP}" dockeronhost
+  fi
+  usermod -aG dockeronhost www-data
+fi
+
 source /etc/overleaf/env.sh
 export LISTEN_ADDRESS=127.0.0.1

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+NODE_PARAMS=""
+if [ "$DEBUG_NODE" == "true" ]; then
+    echo "running debug - linked-url-proxy"
+    NODE_PARAMS="--inspect=0.0.0.0:30660"
+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/linked-url-proxy/app.mjs >> /var/log/overleaf/linked-url-proxy.log 2>&1
@@ -29,6 +29,9 @@ module.exports = [
  {
    name: 'history-v1',
  },
+  {
+    name: 'linked-url-proxy',
+  },
 ]

 if (require.main === module) {
@@ -29,7 +29,7 @@ The CLSI can be configured through the following environment variables:
 - `PROCESS_LIFE_SPAN_LIMIT_MS` - Process life span limit in milliseconds
 - `SMOKE_TEST` - Whether to run smoke tests
 - `TEXLIVE_IMAGE` - The TeX Live Docker image to use for sibling containers, e.g. `us-east1-docker.pkg.dev/overleaf-ops/ol-docker/texlive-full:2026.1`
- `TEX_LIVE_IMAGE_NAME_OVERRIDE` - The name of the registry for the Docker image e.g. `us-east1-docker.pkg.dev/overleaf-ops/ol-docker`
+- `TEX_LIVE_DOCKER_IMAGE_ROOT` - The name of the registry for the Docker image e.g. `us-east1-docker.pkg.dev/overleaf-ops/ol-docker`
 - `TEXLIVE_IMAGE_USER` - When using sibling containers, the user to run as in the TeX Live image. Defaults to `tex`
 - `TEXLIVE_OPENOUT_ANY` - Sets the `openout_any` environment variable for TeX Live (see the `\openout` primitive [documentation](http://tug.org/texinfohtml/web2c.html#tex-invocation))

@@ -10,7 +10,7 @@ import logger from '@overleaf/logger'
 let commandRunnerPath

 if ((Settings.clsi != null ? Settings.clsi.dockerRunner : undefined) === true) {
-  commandRunnerPath = './DockerRunner.js'
+  commandRunnerPath = './DockerRunner.mjs'
 } else {
  commandRunnerPath = './LocalCommandRunner.js'
 }
@@ -0,0 +1,110 @@
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
+/*
+ * decaffeinate suggestions:
+ * DS101: Remove unnecessary use of Array.from
+ * DS102: Remove unnecessary code created because of implicit returns
+ * DS207: Consider shorter variations of null checks
+ * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
+ */
+import logger from '@overleaf/logger'
+let LockManager
+
+const LockState = {} // locks for docker container operations, by container name
+
+export default LockManager = {
+  MAX_LOCK_HOLD_TIME: 15000, // how long we can keep a lock
+  MAX_LOCK_WAIT_TIME: 10000, // how long we wait for a lock
+  LOCK_TEST_INTERVAL: 1000, // retry time
+
+  tryLock(key, callback) {
+    let lockValue
+    if (callback == null) {
+      callback = function () {}
+    }
+    const existingLock = LockState[key]
+    if (existingLock != null) {
+      // the lock is already taken, check how old it is
+      const lockAge = Date.now() - existingLock.created
+      if (lockAge < LockManager.MAX_LOCK_HOLD_TIME) {
+        return callback(null, false) // we didn't get the lock, bail out
+      } else {
+        logger.error(
+          { key, lock: existingLock, age: lockAge },
+          'taking old lock by force'
+        )
+      }
+    }
+    // take the lock
+    LockState[key] = lockValue = { created: Date.now() }
+    return callback(null, true, lockValue)
+  },
+
+  getLock(key, callback) {
+    let attempt
+    if (callback == null) {
+      callback = function () {}
+    }
+    const startTime = Date.now()
+    return (attempt = () =>
+      LockManager.tryLock(key, function (error, gotLock, lockValue) {
+        if (error != null) {
+          return callback(error)
+        }
+        if (gotLock) {
+          return callback(null, lockValue)
+        } else if (Date.now() - startTime > LockManager.MAX_LOCK_WAIT_TIME) {
+          const e = new Error('Lock timeout')
+          e.key = key
+          return callback(e)
+        } else {
+          return setTimeout(attempt, LockManager.LOCK_TEST_INTERVAL)
+        }
+      }))()
+  },
+
+  releaseLock(key, lockValue, callback) {
+    if (callback == null) {
+      callback = function () {}
+    }
+    const existingLock = LockState[key]
+    if (existingLock === lockValue) {
+      // lockValue is an object, so we can test by reference
+      delete LockState[key] // our lock, so we can free it
+      return callback()
+    } else if (existingLock != null) {
+      // lock exists but doesn't match ours
+      logger.error(
+        { key, lock: existingLock },
+        'tried to release lock taken by force'
+      )
+      return callback()
+    } else {
+      logger.error(
+        { key, lock: existingLock },
+        'tried to release lock that has gone'
+      )
+      return callback()
+    }
+  },
+
+  runWithLock(key, runner, callback) {
+    if (callback == null) {
+      callback = function () {}
+    }
+    return LockManager.getLock(key, function (error, lockValue) {
+      if (error != null) {
+        return callback(error)
+      }
+      return runner((error1, ...args) =>
+        LockManager.releaseLock(key, lockValue, function (error2) {
+          error = error1 || error2
+          if (error != null) {
+            return callback(error)
+          }
+          return callback(null, ...Array.from(args))
+        })
+      )
+    })
+  },
+}
@@ -0,0 +1,646 @@
+import { promisify } from 'node:util'
+import Settings from '@overleaf/settings'
+import logger from '@overleaf/logger'
+import Docker from 'dockerode'
+import crypto from 'node:crypto'
+import async from 'async'
+import LockManager from './DockerLockManager.js'
+import Path from 'node:path'
+import _ from 'lodash'
+import { getLastProjectAccessTime } from './LastProjectAccess.js'
+
+const dockerode = new Docker()
+
+const ONE_HOUR_IN_MS = 60 * 60 * 1000
+logger.debug('using docker runner')
+
+let containerMonitorTimeout
+let containerMonitorInterval
+
+const DockerRunner = {
+  run(
+    projectId,
+    command,
+    directory,
+    image,
+    timeout,
+    environment,
+    compileGroup,
+    cwd,
+    callback
+  ) {
+    command = command.map(arg =>
+      arg.toString().replace('$COMPILE_DIR', '/compile')
+    )
+    if (image == null) {
+      image = Settings.clsi.docker.image
+    }
+
+    if (
+      Settings.clsi.docker.allowedImages &&
+      !Settings.clsi.docker.allowedImages.includes(image)
+    ) {
+      return callback(new Error('image not allowed'))
+    }
+
+    if (Settings.texliveImageNameOveride != null && compileGroup != 'conversions') {
+      const img = Path.basename(image)
+      image = `${Settings.texliveImageNameOveride}/${img}`
+    }
+
+    if (
+      Settings.path.sandboxedCompilesHostDirCache &&
+      directory.startsWith(Settings.path.clsiCacheDir + Path.sep)
+    ) {
+      // In:   directory = '<clsiCacheDir>/projectId'
+      //  sandboxedCompilesHostDirCache = '/host/cache'
+      // Out:              directory = '/host/cache/projectId'
+      // (png2pdf & friends operate on CLSI's per-project cache dir, which
+      //  is not under the compiles dir)
+      directory = Path.join(
+        Settings.path.sandboxedCompilesHostDirCache,
+        Path.basename(directory)
+      )
+    } else if (compileGroup === 'synctex-output') {
+      // In: directory = '/overleaf/services/clsi/output/projectId-userId/generated-files/buildId'
+      //             directory.split('/').slice(-3) === 'projectId-userId/generated-files/buildId'
+      //  sandboxedCompilesHostDirOutput = '/host/output'
+      // Out:                  directory = '/host/output/projectId-userId/generated-files/buildId'
+      directory = Path.join(
+        Settings.path.sandboxedCompilesHostDirOutput,
+        ...directory.split('/').slice(-3)
+      )
+    } else {
+      // In:   directory = '/overleaf/services/clsi/compiles/projectId-userId'
+      //                       Path.basename(directory) === 'projectId-userId'
+      //  sandboxedCompilesHostDirCompiles = '/host/compiles'
+      // Out:                    directory = '/host/compiles/projectId-userId'
+      directory = Path.join(
+        Settings.path.sandboxedCompilesHostDirCompiles,
+        Path.basename(directory)
+      )
+    }
+
+    const volumes = { [directory]: '/compile' }
+    if (
+      compileGroup === 'synctex' ||
+      compileGroup === 'synctex-output' ||
+      compileGroup === 'wordcount'
+    ) {
+      volumes[directory] += ':ro'
+    }
+
+    const options = DockerRunner._getContainerOptions(
+      command,
+      image,
+      volumes,
+      timeout,
+      environment,
+      compileGroup,
+      cwd
+    )
+    const fingerprint = DockerRunner._fingerprintContainer(options)
+    const name = `project-${projectId}-${fingerprint}`
+    options.name = name
+
+    // logOptions = _.clone(options)
+    // logOptions?.HostConfig?.SecurityOpt = "secomp used, removed in logging"
+    logger.debug({ projectId }, 'running docker container')
+    // Bounded retry: a permanent container create/start failure (e.g.
+    // "unable to find user" on a FROM-scratch image) must not busy-loop
+    // forever — surface the error to the caller after a couple of attempts.
+    let retriesLeft = 2
+    const runAttempt = () => {
+      DockerRunner._runAndWaitForContainer(
+        options,
+        volumes,
+        timeout,
+        (error, output) => {
+          if (error && error.statusCode === 500 && retriesLeft > 0) {
+            retriesLeft -= 1
+            logger.debug(
+              { err: error, projectId, retriesLeft },
+              'error running container so destroying and retrying'
+            )
+            DockerRunner.destroyContainer(name, null, true, err => {
+              if (err != null) {
+                return callback(err)
+              }
+              runAttempt()
+            })
+          } else {
+            callback(error, output)
+          }
+        }
+      )
+    }
+    runAttempt()
+
+    // pass back the container name to allow it to be killed
+    return name
+  },
+
+  kill(containerId, callback) {
+    logger.debug({ containerId }, 'sending kill signal to container')
+    const container = dockerode.getContainer(containerId)
+    container.kill(error => {
+      if (
+        error != null &&
+        error.message != null &&
+        error.message.match(/Cannot kill container .* is not running/)
+      ) {
+        logger.warn(
+          { err: error, containerId },
+          'container not running, continuing'
+        )
+        error = null
+      }
+      if (error != null) {
+        logger.error({ err: error, containerId }, 'error killing container')
+        callback(error)
+      } else {
+        callback()
+      }
+    })
+  },
+
+  _runAndWaitForContainer(options, volumes, timeout, _callback) {
+    const callback = _.once(_callback)
+    const { name } = options
+
+    let streamEnded = false
+    let containerReturned = false
+    let output = {}
+
+    function callbackIfFinished() {
+      if (streamEnded && containerReturned) {
+        callback(null, output)
+      }
+    }
+
+    function attachStreamHandler(error, _output) {
+      if (error != null) {
+        return callback(error)
+      }
+      output = _output
+      streamEnded = true
+      callbackIfFinished()
+    }
+
+    DockerRunner.startContainer(
+      options,
+      volumes,
+      attachStreamHandler,
+      (error, containerId) => {
+        if (error != null) {
+          return callback(error)
+        }
+
+        DockerRunner.waitForContainer(
+          name,
+          timeout,
+          options,
+          (error, exitCode) => {
+            if (error != null) {
+              return callback(error)
+            }
+            if (exitCode === 137) {
+              // exit status from kill -9
+              const err = new Error('terminated')
+              err.terminated = true
+              return callback(err)
+            }
+            if (exitCode === 1) {
+              // exit status from chktex
+              const err = new Error('exited')
+              err.code = exitCode
+              return callback(err)
+            }
+            output.exitCode = exitCode
+            containerReturned = true
+            logger.debug(
+              // The seccomp policy is very large. Avoid logging it. _.omit deep clones.
+              { exitCode, options: _.omit(options, 'HostConfig.SecurityOpt') },
+              'docker container has exited'
+            )
+            callbackIfFinished()
+          }
+        )
+      }
+    )
+  },
+
+  _getContainerOptions(
+    command,
+    image,
+    volumes,
+    timeout,
+    environment,
+    compileGroup,
+    cwd
+  ) {
+    const timeoutInSeconds = timeout / 1000
+
+    for (const hostVol in volumes) {
+      const dockerVol = volumes[hostVol]
+      if (volumes[hostVol].slice(-3).indexOf(':r') === -1) {
+        volumes[hostVol] = `${dockerVol}:rw`
+      }
+    }
+
+    // merge settings and environment parameter
+    const env = {}
+    for (const src of [Settings.clsi.docker.env, environment || {}]) {
+      for (const key in src) {
+        const value = src[key]
+        env[key] = value
+      }
+    }
+    // set the path based on the image year
+    const match = image.match(/:([0-9]+)\.[0-9]+|:TL([0-9]+)/)
+    // the rolling build does not follow our <year>.<version>.<patch> convention
+    const year = match ? match[1] || match[2] : 'rolling'
+
+    env.PATH = `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/texlive/${year}/bin/x86_64-linux/`
+    const options = {
+      Cmd: command,
+      Image: image,
+      WorkingDir: cwd
+        ? Path.posix.join('/compile', cwd)
+        : '/compile',
+      NetworkDisabled: true,
+      Memory: 1024 * 1024 * 1024 * 1024, // 1 Gb
+      User: Settings.clsi.docker.user,
+      Env: Object.entries(env).map(([key, value]) => `${key}=${value}`),
+      HostConfig: {
+        Binds: Object.entries(volumes).map(
+          ([hostVol, dockerVol]) => `${hostVol}:${dockerVol}`
+        ),
+        LogConfig: { Type: 'none', Config: {} },
+        Ulimits: [
+          {
+            Name: 'cpu',
+            Soft: timeoutInSeconds + 5,
+            Hard: timeoutInSeconds + 10,
+          },
+        ],
+        CapDrop: ['ALL'],
+        SecurityOpt: ['no-new-privileges'],
+      },
+    }
+
+    if (Settings.clsi.docker.seccomp_profile != null) {
+      options.HostConfig.SecurityOpt.push(
+        `seccomp=${Settings.clsi.docker.seccomp_profile}`
+      )
+    }
+
+    if (Settings.clsi.docker.apparmor_profile != null) {
+      options.HostConfig.SecurityOpt.push(
+        `apparmor=${Settings.clsi.docker.apparmor_profile}`
+      )
+    }
+
+    if (Settings.clsi.docker.runtime) {
+      options.HostConfig.Runtime = Settings.clsi.docker.runtime
+    }
+
+    if (Settings.clsi.docker.Readonly) {
+      options.HostConfig.ReadonlyRootfs = true
+      options.HostConfig.Tmpfs = { '/tmp': 'rw,noexec,nosuid,size=65536k' }
+      options.Volumes['/home/tex'] = {}
+    }
+
+    // Allow per-compile group overriding of individual settings
+    if (
+      Settings.clsi.docker.compileGroupConfig &&
+      Settings.clsi.docker.compileGroupConfig[compileGroup]
+    ) {
+      const override = Settings.clsi.docker.compileGroupConfig[compileGroup]
+      for (const key in override) {
+        _.set(options, key, override[key])
+      }
+    }
+
+    return options
+  },
+
+  _fingerprintContainer(containerOptions) {
+    // Yay, Hashing!
+    const json = JSON.stringify(containerOptions)
+    return crypto.createHash('md5').update(json).digest('hex')
+  },
+
+  startContainer(options, volumes, attachStreamHandler, callback) {
+    LockManager.runWithLock(
+      options.name,
+      releaseLock =>
+        DockerRunner._startContainer(
+          options,
+          volumes,
+          attachStreamHandler,
+          releaseLock
+        ),
+      callback
+    )
+  },
+
+  // Check that volumes exist and are directories
+  _startContainer(options, volumes, attachStreamHandler, callback) {
+    callback = _.once(callback)
+    const { name } = options
+
+    logger.debug({ containerName: name }, 'starting container')
+    const container = dockerode.getContainer(name)
+
+    function createAndStartContainer() {
+      dockerode.createContainer(options, (error, container) => {
+        if (error != null) {
+          return callback(error)
+        }
+        startExistingContainer()
+      })
+    }
+
+    function startExistingContainer() {
+      DockerRunner.attachToContainer(
+        options.name,
+        attachStreamHandler,
+        error => {
+          if (error != null) {
+            return callback(error)
+          }
+          container.start(error => {
+            if (error != null && error.statusCode !== 304) {
+              callback(error)
+            } else {
+              // already running
+              callback()
+            }
+          })
+        }
+      )
+    }
+
+    container.inspect((error, stats) => {
+      if (error != null && error.statusCode === 404) {
+        createAndStartContainer()
+      } else if (error != null) {
+        logger.err(
+          { containerName: name, error },
+          'unable to inspect container to start'
+        )
+        callback(error)
+      } else {
+        startExistingContainer()
+      }
+    })
+  },
+
+  attachToContainer(containerId, attachStreamHandler, attachStartCallback) {
+    const container = dockerode.getContainer(containerId)
+    container.attach({ stdout: 1, stderr: 1, stream: 1 }, (error, stream) => {
+      if (error != null) {
+        logger.error(
+          { err: error, containerId },
+          'error attaching to container'
+        )
+        return attachStartCallback(error)
+      } else {
+        attachStartCallback()
+      }
+
+      logger.debug({ containerId }, 'attached to container')
+
+      const MAX_OUTPUT = 1024 * 1024 * 2 // limit output to 2MB
+      function createStringOutputStream(name) {
+        return {
+          data: '',
+          overflowed: false,
+          write(data) {
+            if (this.overflowed) {
+              return
+            }
+            if (this.data.length < MAX_OUTPUT) {
+              this.data += data
+            } else {
+              logger.info(
+                {
+                  containerId,
+                  length: this.data.length,
+                  maxLen: MAX_OUTPUT,
+                },
+                `${name} exceeds max size`
+              )
+              this.data += `(...truncated at ${MAX_OUTPUT} chars...)`
+              this.overflowed = true
+            }
+          },
+          // kill container if too much output
+          // docker.containers.kill(containerId, () ->)
+        }
+      }
+
+      const stdout = createStringOutputStream('stdout')
+      const stderr = createStringOutputStream('stderr')
+
+      container.modem.demuxStream(stream, stdout, stderr)
+
+      stream.on('error', err =>
+        logger.error(
+          { err, containerId },
+          'error reading from container stream'
+        )
+      )
+
+      stream.on('end', () =>
+        attachStreamHandler(null, { stdout: stdout.data, stderr: stderr.data })
+      )
+    })
+  },
+
+  waitForContainer(containerId, timeout, options, _callback) {
+    const callback = _.once(_callback)
+
+    const container = dockerode.getContainer(containerId)
+
+    let timedOut = false
+    const timeoutId = setTimeout(() => {
+      timedOut = true
+      logger.debug({ containerId }, 'timeout reached, killing container')
+      container.kill(err => {
+        logger.warn({ err, containerId }, 'failed to kill container')
+      })
+    }, timeout)
+
+    logger.debug({ containerId }, 'waiting for docker container')
+    container.wait((error, res) => {
+      if (error?.statusCode === 404 && options.HostConfig.AutoRemove) {
+        logger.debug(
+          { containerId },
+          'auto-destroy container destroyed before starting to wait'
+        )
+        clearTimeout(timeoutId)
+        return callback(null, 0)
+      }
+      if (error != null) {
+        clearTimeout(timeoutId)
+        logger.warn({ err: error, containerId }, 'error waiting for container')
+        return callback(error)
+      }
+      if (timedOut) {
+        logger.debug({ containerId }, 'docker container timed out')
+        error = new Error('container timed out')
+        error.timedout = true
+        callback(error)
+      } else {
+        clearTimeout(timeoutId)
+        logger.debug(
+          { containerId, exitCode: res.StatusCode },
+          'docker container returned'
+        )
+        callback(null, res.StatusCode)
+      }
+    })
+  },
+
+  destroyContainer(containerName, containerId, shouldForce, callback) {
+    // We want the containerName for the lock and, ideally, the
+    // containerId to delete.  There is a bug in the docker.io module
+    // where if you delete by name and there is an error, it throws an
+    // async exception, but if you delete by id it just does a normal
+    // error callback. We fall back to deleting by name if no id is
+    // supplied.
+    LockManager.runWithLock(
+      containerName,
+      releaseLock =>
+        DockerRunner._destroyContainer(
+          containerId || containerName,
+          shouldForce,
+          releaseLock
+        ),
+      callback
+    )
+  },
+
+  _destroyContainer(containerId, shouldForce, callback) {
+    logger.debug({ containerId }, 'destroying docker container')
+    const container = dockerode.getContainer(containerId)
+    container.remove({ force: shouldForce === true, v: true }, error => {
+      if (error != null && error.statusCode === 404) {
+        logger.warn(
+          { err: error, containerId },
+          'container not found, continuing'
+        )
+        error = null
+      }
+      if (error != null) {
+        logger.error({ err: error, containerId }, 'error destroying container')
+      } else {
+        logger.debug({ containerId }, 'destroyed container')
+      }
+      callback(error)
+    })
+  },
+
+  // handle expiry of docker containers
+
+  MAX_CONTAINER_AGE: Settings.clsi.docker.maxContainerAge || ONE_HOUR_IN_MS,
+
+  examineOldContainer(container, callback) {
+    const name = container.Name || (container.Names && container.Names[0])
+    const created = container.Created * 1000 // creation time is returned in seconds
+    const now = Date.now()
+    const age = now - created
+    const maxAge = DockerRunner.MAX_CONTAINER_AGE
+    const ttl = maxAge - age
+    logger.debug(
+      { containerName: name, created, now, age, maxAge, ttl },
+      'checking whether to destroy container'
+    )
+    return { name, id: container.Id, ttl }
+  },
+
+  destroyOldContainers(callback) {
+    dockerode.listContainers({ all: true }, (error, containers) => {
+      if (error != null) {
+        return callback(error)
+      }
+      const jobs = []
+      for (const container of containers) {
+        const { name, id, ttl } = DockerRunner.examineOldContainer(container)
+        if (name.slice(0, 9) === '/project-' && ttl <= 0) {
+          // extract projectId: /project-<projectId>-...
+          const match = name.match(/^\/project-([a-f0-9]{24})-/)
+          const projectId = match && match[1]
+
+          if (projectId != null) {
+            const lastAccess = getLastProjectAccessTime(projectId)
+            // if last access time is missing, lastAccess === 0, container will be destroyed
+            // provided that MAX_CONTAINER_AGE is less that 56 years, but anyway, let's check it
+            if (lastAccess && lastAccess > Date.now() - DockerRunner.MAX_CONTAINER_AGE) {
+              continue
+            }
+          }
+
+          // strip the / prefix
+          // the LockManager uses the plain container name
+          const plainName = name.slice(1)
+          jobs.push(cb =>
+            DockerRunner.destroyContainer(plainName, id, false, () => cb())
+          )
+        }
+      }
+      // Ignore errors because some containers get stuck but
+      // will be destroyed next time
+      async.series(jobs, callback)
+    })
+  },
+
+  startContainerMonitor() {
+    logger.debug(
+      { maxAge: DockerRunner.MAX_CONTAINER_AGE },
+      'starting container expiry'
+    )
+
+    // guarantee only one monitor is running
+    DockerRunner.stopContainerMonitor()
+
+    // randomise the start time
+    const randomDelay = Math.floor(Math.random() * 5 * 60 * 1000)
+    containerMonitorTimeout = setTimeout(() => {
+      containerMonitorInterval = setInterval(
+        () =>
+          DockerRunner.destroyOldContainers(err => {
+            if (err) {
+              logger.error({ err }, 'failed to destroy old containers')
+            }
+          }),
+        ONE_HOUR_IN_MS
+      )
+    }, randomDelay)
+  },
+
+  stopContainerMonitor() {
+    if (containerMonitorTimeout) {
+      clearTimeout(containerMonitorTimeout)
+      containerMonitorTimeout = undefined
+    }
+    if (containerMonitorInterval) {
+      clearInterval(containerMonitorInterval)
+      containerMonitorInterval = undefined
+    }
+  },
+
+  canRunSyncTeXInOutputDir() {
+    return Boolean(Settings.path.sandboxedCompilesHostDirOutput)
+  },
+}
+
+DockerRunner.startContainerMonitor()
+
+DockerRunner.promises = {
+  run: promisify(DockerRunner.run),
+  kill: promisify(DockerRunner.kill),
+}
+export default DockerRunner
@@ -98,7 +98,7 @@ module.exports = {
  parallelFileDownloads:
    parseInt(process.env.FILESTORE_PARALLEL_FILE_DOWNLOADS, 10) || 1,
  filestoreDomainOveride: process.env.FILESTORE_DOMAIN_OVERRIDE,
-  texliveImageNameOveride: process.env.TEX_LIVE_IMAGE_NAME_OVERRIDE,
+  texliveImageNameOveride: process.env.TEX_LIVE_DOCKER_IMAGE_ROOT,
  texliveOpenoutAny: process.env.TEXLIVE_OPENOUT_ANY,
  texliveMaxPrintLine: process.env.TEXLIVE_MAX_PRINT_LINE,
  enablePdfCaching: process.env.ENABLE_PDF_CACHING === 'true',
@@ -130,7 +130,7 @@ if (process.env.ALLOWED_COMPILE_GROUPS) {

 if ((process.env.DOCKER_RUNNER || process.env.SANDBOXED_COMPILES) === 'true') {
  if (
-    !fs.existsSync(Path.join(__dirname, '..', 'app', 'js', 'DockerRunner.js'))
+    !fs.existsSync(Path.join(__dirname, '..', 'app', 'js', 'DockerRunner.mjs'))
  ) {
    console.error(
      'Sandboxed compiles are only available with Overleaf Server Pro. Compare Server Pro with Community Edition here: https://docs.overleaf.com/on-premises/welcome/server-pro-vs.-community-edition'
@@ -145,13 +145,13 @@ if ((process.env.DOCKER_RUNNER || process.env.SANDBOXED_COMPILES) === 'true') {
      image:
        process.env.TEXLIVE_IMAGE ||
        process.env.TEX_LIVE_DOCKER_IMAGE ||
-        'quay.io/sharelatex/texlive-full:2017.1',
+        process.env.ALL_TEX_LIVE_DOCKER_IMAGES.split(',')[0].trim(),
      env: {
        HOME: '/tmp',
        CLSI: 1,
      },
      socketPath: '/var/run/docker.sock',
-      user: process.env.TEXLIVE_IMAGE_USER || 'tex',
+      user: process.env.TEXLIVE_IMAGE_USER || 'www-data',
    },
    optimiseInDocker: true,
    expireProjectAfterIdleMs: 24 * 60 * 60 * 1000,
@@ -172,7 +172,15 @@ if ((process.env.DOCKER_RUNNER || process.env.SANDBOXED_COMPILES) === 'true') {
      wordcount: { 'HostConfig.AutoRemove': true },
      synctex: { 'HostConfig.AutoRemove': true },
      'synctex-output': { 'HostConfig.AutoRemove': true },
-      conversions: { 'HostConfig.AutoRemove': true },
+      // The pdftocairo image is also built FROM scratch with no passwd file,
+      // so the default named user (www-data) fails at container create with
+      // "unable to find user ... no matching entries in passwd file". Run it
+      // as the numeric uid/gid of this clsi process (which owns the files it
+      // converts), same as the png2pdf image below.
+      conversions: {
+        'HostConfig.AutoRemove': true,
+        User: `${process.getuid()}:${process.getgid()}`,
+      },
      // The png2pdf image is built FROM scratch and has no 'tex' user, so run
      // it as the same uid/gid as this clsi process, which owns the cache files
      // it converts in place.
@@ -0,0 +1,914 @@
+{
+    "defaultAction": "SCMP_ACT_ERRNO",
+    "architectures": [
+        "SCMP_ARCH_X86_64",
+        "SCMP_ARCH_X86",
+        "SCMP_ARCH_X32",
+        "SCMP_ARCH_AARCH64",
+        "SCMP_ARCH_ARM"
+    ],
+    "syscalls": [
+        {
+          "name": "getrandom",
+          "action": "SCMP_ACT_ALLOW",
+          "args": []
+        },
+        {
+            "name": "access",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "arch_prctl",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "brk",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "chdir",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "chmod",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "clock_getres",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "clock_gettime",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "clock_nanosleep",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "clone",
+            "action": "SCMP_ACT_ALLOW",
+            "args": [
+                {
+                    "index": 0,
+                    "value": 2080505856,
+                    "valueTwo": 0,
+                    "op": "SCMP_CMP_MASKED_EQ"
+                }
+            ]
+        },
+        {
+            "name": "clone3",
+            "action": "SCMP_ACT_ERRNO",
+            "errnoRet": 38
+        },
+        {
+            "name": "close",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "copy_file_range",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "creat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "dup",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "dup2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "dup3",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "execve",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "execveat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "exit",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "exit_group",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "faccessat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+             "name": "faccessat2",
+             "action": "SCMP_ACT_ALLOW",
+             "args": []
+        },
+        {
+            "name": "fadvise64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fadvise64_64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fallocate",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fchdir",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fchmod",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fchmodat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fcntl",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fcntl64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fdatasync",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fork",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fstat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fstat64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fstatat64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fstatfs",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fstatfs64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fsync",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "ftruncate",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "ftruncate64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "futex",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "futimesat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getcpu",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getcwd",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getdents",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getdents64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getegid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getegid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "geteuid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "geteuid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getgid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getgid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getgroups",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getgroups32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getpgid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getpgrp",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getpid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getppid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getpriority",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getresgid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getresgid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getresuid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getresuid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getrlimit",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "get_robust_list",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getrusage",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getsid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "gettid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getuid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "getuid32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "ioctl",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "kill",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "_llseek",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "lseek",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "lstat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "lstat64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "madvise",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mkdir",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mkdirat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mmap",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mmap2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mprotect",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "mremap",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "munmap",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "newfstatat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "open",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "openat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "openat2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pause",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pipe",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pipe2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "prctl",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pread64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "preadv",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "prlimit64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pwrite64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pwritev",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "read",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "readlink",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "readlinkat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "readv",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rename",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "renameat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "renameat2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "restart_syscall",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rmdir",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigaction",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigpending",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigprocmask",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigqueueinfo",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigreturn",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigsuspend",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_sigtimedwait",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "rt_tgsigqueueinfo",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_getaffinity",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_getparam",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_get_priority_max",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_get_priority_min",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_getscheduler",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_rr_get_interval",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sched_yield",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sendfile",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sendfile64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "setgroups",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "setgroups32",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "set_robust_list",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "set_tid_address",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sigaltstack",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "stat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "statx",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "stat64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "statfs",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "statfs64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sync",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sync_file_range",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "syncfs",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "sysinfo",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "tgkill",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timer_create",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timer_delete",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timer_getoverrun",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timer_gettime",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timer_settime",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "times",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "tkill",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "truncate",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "truncate64",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "umask",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "uname",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "unlink",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "unlinkat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "utime",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "utimensat",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "utimes",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "vfork",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "vhangup",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "wait4",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "waitid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "write",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "writev",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "pread",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "setgid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "setuid",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "capget",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "capset",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "fchown",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "gettimeofday",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_wait",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_pwait",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_pwait2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "poll",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "ppoll",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_create",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_create1",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "epoll_ctl",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timerfd_create",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "timerfd_settime",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        },
+        {
+            "name": "eventfd2",
+            "action": "SCMP_ACT_ALLOW",
+            "args": []
+        }
+    ]
+}
@@ -0,0 +1,259 @@
+import { vi, describe, beforeEach, it } from 'vitest'
+
+import sinon from 'sinon'
+import path from 'node:path'
+const modulePath = path.join(
+  import.meta.dirname,
+  '../../../app/js/DockerLockManager'
+)
+
+describe('DockerLockManager', function () {
+  beforeEach(async function (ctx) {
+    vi.doMock('@overleaf/settings', () => ({
+      default: (ctx.Settings = { clsi: { docker: {} } }),
+    }))
+
+    return (ctx.LockManager = (await import(modulePath)).default)
+  })
+
+  return describe('runWithLock', function () {
+    describe('with a single lock', function () {
+      beforeEach(async function (ctx) {
+        await new Promise((resolve, reject) => {
+          ctx.callback = sinon.stub()
+          return ctx.LockManager.runWithLock(
+            'lock-one',
+            releaseLock =>
+              setTimeout(() => releaseLock(null, 'hello', 'world'), 100),
+
+            (err, ...args) => {
+              ctx.callback(err, ...Array.from(args))
+              return resolve()
+            }
+          )
+        })
+      })
+
+      return it('should call the callback', function (ctx) {
+        return ctx.callback
+          .calledWith(null, 'hello', 'world')
+          .should.equal(true)
+      })
+    })
+
+    describe('with two locks', function () {
+      beforeEach(async function (ctx) {
+        await new Promise((resolve, reject) => {
+          ctx.callback1 = sinon.stub()
+          ctx.callback2 = sinon.stub()
+          ctx.LockManager.runWithLock(
+            'lock-one',
+            releaseLock =>
+              setTimeout(() => releaseLock(null, 'hello', 'world', 'one'), 100),
+
+            (err, ...args) => {
+              return ctx.callback1(err, ...Array.from(args))
+            }
+          )
+          return ctx.LockManager.runWithLock(
+            'lock-two',
+            releaseLock =>
+              setTimeout(() => releaseLock(null, 'hello', 'world', 'two'), 200),
+
+            (err, ...args) => {
+              ctx.callback2(err, ...Array.from(args))
+              return resolve()
+            }
+          )
+        })
+      })
+
+      it('should call the first callback', function (ctx) {
+        return ctx.callback1
+          .calledWith(null, 'hello', 'world', 'one')
+          .should.equal(true)
+      })
+
+      return it('should call the second callback', function (ctx) {
+        return ctx.callback2
+          .calledWith(null, 'hello', 'world', 'two')
+          .should.equal(true)
+      })
+    })
+
+    return describe('with lock contention', function () {
+      describe('where the first lock is released quickly', function () {
+        beforeEach(async function (ctx) {
+          await new Promise((resolve, reject) => {
+            ctx.LockManager.MAX_LOCK_WAIT_TIME = 1000
+            ctx.LockManager.LOCK_TEST_INTERVAL = 100
+            ctx.callback1 = sinon.stub()
+            ctx.callback2 = sinon.stub()
+            ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'one'),
+                  100
+                ),
+
+              (err, ...args) => {
+                return ctx.callback1(err, ...Array.from(args))
+              }
+            )
+            return ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'two'),
+                  200
+                ),
+
+              (err, ...args) => {
+                ctx.callback2(err, ...Array.from(args))
+                return resolve()
+              }
+            )
+          })
+        })
+
+        it('should call the first callback', function (ctx) {
+          return ctx.callback1
+            .calledWith(null, 'hello', 'world', 'one')
+            .should.equal(true)
+        })
+
+        return it('should call the second callback', function (ctx) {
+          return ctx.callback2
+            .calledWith(null, 'hello', 'world', 'two')
+            .should.equal(true)
+        })
+      })
+
+      describe('where the first lock is held longer than the waiting time', function () {
+        beforeEach(async function (ctx) {
+          await new Promise((resolve, reject) => {
+            let doneTwo
+            ctx.LockManager.MAX_LOCK_HOLD_TIME = 10000
+            ctx.LockManager.MAX_LOCK_WAIT_TIME = 1000
+            ctx.LockManager.LOCK_TEST_INTERVAL = 100
+            ctx.callback1 = sinon.stub()
+            ctx.callback2 = sinon.stub()
+            let doneOne = (doneTwo = false)
+            const finish = function (key) {
+              if (key === 1) {
+                doneOne = true
+              }
+              if (key === 2) {
+                doneTwo = true
+              }
+              if (doneOne && doneTwo) {
+                return resolve()
+              }
+            }
+            ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'one'),
+                  1100
+                ),
+
+              (err, ...args) => {
+                ctx.callback1(err, ...Array.from(args))
+                return finish(1)
+              }
+            )
+            return ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'two'),
+                  100
+                ),
+
+              (err, ...args) => {
+                ctx.callback2(err, ...Array.from(args))
+                return finish(2)
+              }
+            )
+          })
+        })
+
+        it('should call the first callback', function (ctx) {
+          return ctx.callback1
+            .calledWith(null, 'hello', 'world', 'one')
+            .should.equal(true)
+        })
+
+        return it('should call the second callback with an error', function (ctx) {
+          const error = sinon.match.instanceOf(Error)
+          return ctx.callback2.calledWith(error).should.equal(true)
+        })
+      })
+
+      return describe('where the first lock is held longer than the max holding time', function () {
+        beforeEach(async function (ctx) {
+          await new Promise((resolve, reject) => {
+            let doneTwo
+            ctx.LockManager.MAX_LOCK_HOLD_TIME = 1000
+            ctx.LockManager.MAX_LOCK_WAIT_TIME = 2000
+            ctx.LockManager.LOCK_TEST_INTERVAL = 100
+            ctx.callback1 = sinon.stub()
+            ctx.callback2 = sinon.stub()
+            let doneOne = (doneTwo = false)
+            const finish = function (key) {
+              if (key === 1) {
+                doneOne = true
+              }
+              if (key === 2) {
+                doneTwo = true
+              }
+              if (doneOne && doneTwo) {
+                return resolve()
+              }
+            }
+            ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'one'),
+                  1500
+                ),
+
+              (err, ...args) => {
+                ctx.callback1(err, ...Array.from(args))
+                return finish(1)
+              }
+            )
+            return ctx.LockManager.runWithLock(
+              'lock',
+              releaseLock =>
+                setTimeout(
+                  () => releaseLock(null, 'hello', 'world', 'two'),
+                  100
+                ),
+
+              (err, ...args) => {
+                ctx.callback2(err, ...Array.from(args))
+                return finish(2)
+              }
+            )
+          })
+        })
+
+        it('should call the first callback', function (ctx) {
+          return ctx.callback1
+            .calledWith(null, 'hello', 'world', 'one')
+            .should.equal(true)
+        })
+
+        return it('should call the second callback', function (ctx) {
+          return ctx.callback2
+            .calledWith(null, 'hello', 'world', 'two')
+            .should.equal(true)
+        })
+      })
+    })
+  })
+})
@@ -5,7 +5,7 @@ import Path from 'node:path'

 const modulePath = Path.join(
  import.meta.dirname,
-  '../../../app/js/DockerRunner'
+  '../../../app/js/DockerRunner.mjs'
 )

 describe('DockerRunner', () => {
@@ -67,6 +67,11 @@ if (settings.filestore.stores.template_files) {
    keyBuilder.templateFileKeyMiddleware,
    fileController.insertFile
  )
+  app.delete(
+    '/template/:template_id/v/:version/:format',
+    keyBuilder.templateFileKeyMiddleware,
+    fileController.deleteFile
+  )
 }

 app.get(
@@ -12,6 +12,7 @@ export default {
  getFile,
  getFileHead,
  insertFile,
+  deleteFile,
 }

 function getFile(req, res, next) {
@@ -99,6 +100,22 @@ function getFile(req, res, next) {
  })
 }

+function deleteFile(req, res, next) {
+  metrics.inc('deleteFile')
+  const { key, bucket } = req
+
+  req.requestLogger.addFields({ key, bucket })
+  req.requestLogger.setMessage('deleting file')
+
+  FileHandler.deleteFile(bucket, key, function (err) {
+    if (err) {
+      next(err)
+    } else {
+      res.sendStatus(204)
+    }
+  })
+}
+
 function getFileHead(req, res, next) {
  const { key, bucket } = req

@@ -2,11 +2,12 @@ import metrics from '@overleaf/metrics'
 import Settings from '@overleaf/settings'
 import { callbackify } from 'node:util'
 import SafeExec from './SafeExec.js'
+import SandboxConverterRunner from './SandboxConverterRunner.js'
 import Errors from './Errors.js'

 const { ConversionError } = Errors

-const APPROVED_FORMATS = ['png']
+const APPROVED_FORMATS = ['png', 'jpg']
 const FOURTY_SECONDS = 40 * 1000
 const KILL_SIGNAL = 'SIGTERM'

@@ -22,6 +23,9 @@ export default {
 }

 async function convert(sourcePath, requestedFormat) {
+  if (Settings.converter === 'pdftocairo-sandbox') {
+    return await _convertInSandbox(sourcePath, requestedFormat, 1500)
+  }
  if (Settings.converter === 'pdftocairo') {
    const width = 1500
    return await _convert(sourcePath, requestedFormat, [
@@ -49,6 +53,9 @@ async function convert(sourcePath, requestedFormat) {
 }

 async function thumbnail(sourcePath) {
+  if (Settings.converter === 'pdftocairo-sandbox') {
+    return await _convertInSandbox(sourcePath, 'png', 700)
+  }
  if (Settings.converter === 'pdftocairo') {
    const width = 700
    return await _convert(sourcePath, 'png', [
@@ -81,6 +88,9 @@ async function thumbnail(sourcePath) {

 async function preview(sourcePath) {
  const width = 1000
+  if (Settings.converter === 'pdftocairo-sandbox') {
+    return await _convertInSandbox(sourcePath, 'png', width)
+  }
  if (Settings.converter === 'pdftocairo') {
    return await _convert(sourcePath, 'png', [
      'pdftocairo',
@@ -109,6 +119,50 @@ async function preview(sourcePath) {
  }
 }

+/**
+ * Run the pdftocairo conversion inside a sandboxed sibling container (no
+ * network, all caps dropped, memory cap — see SandboxConverterRunner.js).
+ *
+ * Keeps the same contract as the local path: the result is written to
+ * `${sourcePath}.${requestedFormat}`.
+ *
+ * @param {string} sourcePath
+ * @param {string} requestedFormat 'png' or 'jpg'
+ * @param {number} width output width in px
+ * @return {Promise<{outputHostPath: string}>}
+ */
+async function _convertInSandbox(sourcePath, requestedFormat, width) {
+  if (!APPROVED_FORMATS.includes(requestedFormat)) {
+    throw new ConversionError('invalid format requested', { format: requestedFormat })
+  }
+  const ext = requestedFormat
+  const workDir = '/work'
+  // poppler appends the device extension to the output argument, so the
+  // argument must end WITHOUT an extension; the result lands at
+  // /work/input.pdf.<png|jpg> next to the input.
+  const device = requestedFormat === 'png' ? '-png' : '-jpeg'
+  const result = await SandboxConverterRunner.runConversion({
+    sourcePath,
+    containerArgs: [
+      'pdftocairo',
+      device,
+      '-singlefile',
+      '-scale-to-x',
+      width.toString(),
+      '-scale-to-y',
+      '-1', // maintain aspect ratio
+      `${workDir}/input.pdf`,
+      `${workDir}/input.pdf`,
+    ],
+    workDir,
+    outputBase: 'input.pdf',
+    outputExt: ext,
+    destPath: `${sourcePath}.${requestedFormat}`,
+  })
+  // Same contract as the local converters: return the destination path string.
+  return result.outputHostPath
+}
+
 async function _convert(sourcePath, requestedFormat, command) {
  if (!APPROVED_FORMATS.includes(requestedFormat)) {
    throw new ConversionError('invalid format requested', {
@@ -13,6 +13,7 @@ const { ConversionError, InvalidParametersError } = Errors

 const FileHandler = {
  insertFile: callbackify(insertFile),
+  deleteFile: callbackify(deleteFile),
  getFile: callbackify(getFile),
  getRedirectUrl: callbackify(getRedirectUrl),
  getFileSize: callbackify(getFileSize),
@@ -20,6 +21,7 @@ const FileHandler = {
    getFile,
    getRedirectUrl,
    insertFile,
+    deleteFile,
    getFileSize,
  },
 }
@@ -46,6 +48,25 @@ async function insertFile(bucket, key, stream) {
  await PersistorManager.sendStream(bucket, key, stream)
 }

+async function deleteFile(bucket, key) {
+  const convertedKey = KeyBuilder.getConvertedFolderKey(key)
+  if (!convertedKey.match(/^[0-9a-f]{24}\/([0-9a-f]{24}|v\/[0-9]+\/[a-z]+)/i)) {
+    throw new InvalidParametersError('key does not match validation regex', {
+      bucket,
+      key,
+      convertedKey,
+    })
+  }
+  const jobs = [PersistorManager.deleteObject(bucket, key)]
+  if (
+    Settings.enableConversions &&
+    bucket === Settings.filestore.stores.template_files
+  ) {
+    jobs.push(PersistorManager.deleteDirectory(bucket, convertedKey))
+  }
+  await Promise.all(jobs)
+}
+
 async function getFile(bucket, key, opts) {
  opts = opts || {}
  if (!opts.format && !opts.style) {
@@ -111,7 +132,9 @@ async function _getConvertedFileAndCache(bucket, key, convertedKey, opts) {
  let convertedFsPath
  try {
    convertedFsPath = await _convertFile(bucket, key, opts)
-    await ImageOptimiser.promises.compressPng(convertedFsPath)
+    if (convertedFsPath.toLowerCase().endsWith(".png")) {
+      await ImageOptimiser.promises.compressPng(convertedFsPath)
+    }
    await PersistorManager.sendFile(bucket, convertedKey, convertedFsPath)
  } catch (err) {
    LocalFileWriter.deleteFile(convertedFsPath, () => {})
@@ -0,0 +1,342 @@
+// SandboxConverterRunner.js
+//
+// Runs a PDF→image conversion (pdftocairo) in a throwaway sibling container,
+// the same isolation profile CLSI's DockerRunner gives its conversion
+// containers (see services/clsi/app/js/DockerRunner.mjs and the `conversions`
+// / `png2pdf` compile groups in services/clsi/config/settings.defaults.cjs):
+//
+//   - no network access            (HostConfig.NetworkMode: 'none')
+//   - all capabilities dropped     (HostConfig.CapDrop: ['ALL'])
+//   - no new privileges            (SecurityOpt: 'no-new-privileges')
+//   - hard memory cap
+//   - numeric uid:gid of the overleaf service user (the scratch-based
+//     converter images have no passwd entries, so named users fail)
+//   - container is always removed afterwards
+//
+// Implemented as a minimal Docker Engine API client over the unix socket so
+// that no new npm dependency is required (this service is installed with
+// Yarn PnP; cross-service packages such as dockerode are not resolvable
+// here).
+//
+// IMPORTANT (bind mounts): the daemon runs on the Docker host, so the
+// bind source MUST be a daemon-host-visible path (in this deployment:
+// under the overleaf `./data` volume), never a container-internal path
+// such as /tmp. The caller passes a `hostDir` that satisfies this.
+
+import http from 'node:http'
+import Path from 'node:path'
+import Fs from 'node:fs'
+import crypto from 'node:crypto'
+import Settings from '@overleaf/settings'
+import logger from '@overleaf/logger'
+import Errors from './Errors.js'
+
+const { ConversionError } = Errors
+
+const API_VERSION = 'v1.43' // conservative; the engine API is backwards compatible
+
+/**
+ * One request against the Docker Engine API on a unix socket.
+ *
+ * @param {string} socketPath
+ * @param {string} method
+ * @param {string} apiPath e.g. `/v1.43/containers/create?name=xyz`
+ * @param {object} [opts]
+ * @param {object|string} [opts.body] JSON body
+ * @param {number} [opts.timeoutMs] hard deadline for the whole request
+ * @param {Buffer|null} [opts.expectRaw] pass a truthy value to keep the body
+ *   as a Buffer (used for the log stream)
+ * @return {Promise<{status: number, headers: object, body: any, raw: Buffer}>}
+ */
+function request(socketPath, method, apiPath, { body, timeoutMs = 60000, raw = false } = {}) {
+  return new Promise((resolve, reject) => {
+    const data = body === undefined || body === null ? null : JSON.stringify(body)
+    let settled = false
+    const req = http.request(
+      {
+        socketPath,
+        method,
+        path: apiPath,
+        headers: data
+          ? {
+              'content-type': 'application/json',
+              'content-length': Buffer.byteLength(data),
+            }
+          : {},
+      },
+      (res) => {
+        const chunks = []
+        res.on('data', (c) => chunks.push(c))
+        res.on('end', () => {
+          if (settled) return
+          settled = true
+          clearTimeout(timer)
+          const buf = Buffer.concat(chunks)
+          if (raw) return resolve({ status: res.statusCode, headers: res.headers, body: buf, raw: buf })
+          let parsed = buf
+          if (buf.length && (buf[0] === 0x7b || buf[0] === 0x5b)) {
+            try {
+              parsed = JSON.parse(buf.toString('utf8'))
+            } catch (e) {
+              // non-JSON body (e.g. plain text) — keep buffer
+              parsed = buf
+            }
+          }
+          resolve({ status: res.statusCode, headers: res.headers, body: parsed, raw: buf })
+        })
+      }
+    )
+    const timer = setTimeout(() => {
+      if (settled) return
+      settled = true
+      req.destroy()
+      reject(new Error(`docker api ${method} ${apiPath} timed out after ${timeoutMs}ms`))
+    }, timeoutMs)
+    timer.unref?.()
+    req.on('error', (err) => {
+      if (settled) return
+      settled = true
+      clearTimeout(timer)
+      reject(err)
+    })
+    if (data) req.write(data)
+    req.end()
+  })
+}
+
+/** Decode the framed (TTY=false) docker log stream. */
+function decodeLogStream(buf) {
+  if (!buf || !buf.length) return ''
+  // 8-byte header per frame: [stream(1)] [size_be32(4)] [reserved(3)] + payload
+  // (older daemons use a 4-byte header; try the 8-byte layout first)
+  let out = ''
+  let i = 0
+  while (i + 8 <= buf.length) {
+    const size = buf.readUInt32BE(i + 4)
+    if (i + 8 + size > buf.length) break
+    if (buf[i] === 1 || buf[i] === 2) out += buf.subarray(i + 8, i + 8 + size).toString('utf8')
+    i += 8 + size
+  }
+  return out || buf.toString('utf8')
+}
+
+/**
+ * Best-effort sweep of leftover `filestore-convert-*` containers from crashes
+ * or service restarts mid-run (a container that was created but never started
+ * or removed otherwise would leak forever).
+ */
+async function _sweepLeftovers(socketPath) {
+  let res
+  try {
+    res = await request(
+      socketPath,
+      'GET',
+      `/${API_VERSION}/containers/json?all=1&limit=200&filters=%7B%22name%22%3A%5B%22filestore-convert-%22%5D%7D`,
+      { timeoutMs: 10000 }
+    )
+  } catch (err) {
+    return // not fatal
+  }
+  if (res.status !== 200 || !Array.isArray(res.body)) return
+  for (const c of res.body) {
+    if (typeof c.Names?.[0] === 'string' && c.Names[0].startsWith('/filestore-convert-')) {
+      const name = c.Names[0].slice(1)
+      for (let attempt = 0; attempt < 2; attempt += 1) {
+        try {
+          await request(socketPath, 'DELETE', `/${API_VERSION}/containers/${name}?force=1`, { timeoutMs: 10000 })
+          logger.warn({ name }, 'sandbox conversion: removed leftover container')
+          break
+        } catch (err) {
+          if (attempt === 0) continue
+          logger.warn({ err, name }, 'sandbox conversion: failed to remove leftover container')
+        }
+      }
+    }
+  }
+}
+
+/**
+ * Run a conversion in a sandboxed container.
+ *
+ * Layout contract (mirrors CLSI's conversion runner):
+ *   host:  <hostDir>/<runId>/input.pdf          <- the source file (copied in)
+ *   host:  <hostDir>/<runId>/<outputBase>.<ext> <- produced by the container
+ *
+ * @param {object} opts
+ * @param {string} opts.sourcePath absolute path to the source PDF (must be
+ *   inside a daemon-host-visible directory — the bind source is derived from it)
+ * @param {string} opts.containerArgs full argv inside the container, e.g.
+ *   ['pdftocairo','-png','-singlefile','-scale-to-x','700','-scale-to-y','-1',
+ *    '/work/input.pdf','/work/output']
+ * @param {string} opts.workDir basename mapping used in `containerArgs`; the
+ *   source file is placed at <workDir>/input.pdf inside the container
+ * @param {string} opts.outputBase container-side output basename (without ext)
+ * @param {string} opts.outputExt 'png' or 'jpg'
+ * @param {string} opts.destPath absolute host path where the result must end up
+ * @return {Promise<{container: string, exitCode: number, outputHostPath: string, durationMs: number}>}
+ */
+export async function runConversion(opts) {
+  const {
+    sourcePath,
+    containerArgs,
+    workDir = '/work',
+    outputBase = 'output',
+    outputExt = 'png',
+    destPath,
+  } = opts
+
+  const sandbox = Settings.sandboxConversion || {}
+  const image = sandbox.image || 'sharelatex/pdftocairo:24.02'
+  const socketPath = sandbox.dockerSocketPath || '/var/run/docker.sock'
+  const hostDir = sandbox.hostDir // daemon-host side of the scratch dir
+  const containerDir = sandbox.containerDir // overleaf-container side
+  const memoryBytes = sandbox.memoryBytes || 512 * 1024 * 1024
+  const timeoutMs = sandbox.timeoutMs || 40000
+
+  if (!hostDir || !containerDir) {
+    throw new ConversionError(
+      'sandbox conversion is not configured: set CONVERSION_SANDBOX_HOST_DIR (Docker-daemon side) and CONVERSION_SANDBOX_DIR (overleaf-container side) to the two views of the same directory'
+    )
+  }
+
+  const runId = crypto.randomBytes(8).toString('hex')
+  const runName = `filestore-convert-${runId}`
+  const runDir = Path.join(containerDir, runId) // path used by THIS process (container side)
+  const hostRunDir = Path.join(hostDir, runId) // same dir from the daemon side (bind source)
+  const inputHostPath = Path.join(runDir, 'input.pdf')
+  const outputHostPath = Path.join(runDir, `${outputBase}.${outputExt}`)
+
+  const t0 = Date.now()
+  let containerCreated = false
+  try {
+    // Guard against leftover containers from an interrupted previous run.
+  await _sweepLeftovers(socketPath)
+
+  Fs.mkdirSync(runDir, { mode: 0o770 })
+    Fs.copyFileSync(sourcePath, inputHostPath)
+
+    // Container-absolute path of the source file, for argv remapping sanity
+    const sourceInContainer = Path.join(workDir, 'input.pdf')
+    if (!containerArgs.some((a) => a === sourceInContainer)) {
+      throw new ConversionError(
+        `sandbox argv does not reference ${sourceInContainer} — refusing to run`
+      )
+    }
+
+    // Create (the converter images are scratch-based: no ENTRYPOINT, so a bare
+    // Cmd list is what CLSI runs successfully too).
+    const createBody = {
+      Image: image,
+      Cmd: containerArgs,
+      WorkingDir: workDir,
+      // scratch-based images have no passwd entries — run as the numeric
+      // uid:gid of this service (it owns the files on both sides of the bind).
+      User: `${process.getuid()}:${process.getgid()}`,
+      HostConfig: {
+        Binds: [`${hostRunDir}:${workDir}:rw`],
+        CapDrop: ['ALL'],
+        SecurityOpt: ['no-new-privileges'],
+        NetworkMode: 'none',
+        Memory: memoryBytes,
+        MemorySwap: 0,
+        PidsLimit: 64,
+      },
+    }
+    const created = await request(socketPath, 'POST', `/${API_VERSION}/containers/create?name=${runName}`, {
+      body: createBody,
+      timeoutMs: 60000,
+    })
+    if (created.status >= 300 || !created.body?.Id) {
+      const msg = created.body?.message || JSON.stringify(created.body) || `status ${created.status}`
+      throw new ConversionError(`failed to create sandbox container: ${msg}`)
+    }
+    containerCreated = true
+    logger.info({ image, runName, hostDir: hostRunDir, containerDir: runDir }, 'sandbox conversion: container created')
+
+    await request(socketPath, 'POST', `/${API_VERSION}/containers/${runName}/start`, { timeoutMs: 60000 })
+
+    // Wait with a real deadline; kill on breach (the /wait call is a blocking
+    // HTTP call that carries no data, so it gets its own generous budget).
+    let exitCode = -1
+    let killed = false
+    try {
+      // NOTE: this daemon (Docker 29 / API ≥1.44) requires POST for /wait; GET
+      // returns 404. (dockerode does the same, which is how CLSI waits.)
+      const waited = await request(socketPath, 'POST', `/${API_VERSION}/containers/${runName}/wait`, {
+        timeoutMs: timeoutMs + 15000,
+      })
+      exitCode = waited.body?.StatusCode ?? -1
+      if (exitCode === -1 && waited.status !== 200) {
+        throw new Error(`unexpected /wait status ${waited.status}: ${waited.raw?.toString?.('utf8') || 'no body'}`)
+      }
+    } catch (waitErr) {
+      killed = true
+      await _killAndRemove(socketPath, runName)
+      throw new ConversionError(`sandbox conversion timed out (${timeoutMs}ms): ${waitErr.message}`)
+    }
+
+    let logs = ''
+    try {
+      const logsRes = await request(
+        socketPath,
+        'GET',
+        `/${API_VERSION}/containers/${runName}/logs?stdout=1&stderr=1&stdin=0&follow=1`,
+        { raw: true, timeoutMs: 10000 }
+      )
+      logs = decodeLogStream(logsRes.raw)
+    } catch (err) {
+      logger.warn({ err, runName }, 'sandbox conversion: could not read container logs')
+    }
+
+    if (exitCode !== 0) {
+      throw new ConversionError(
+        `sandbox conversion failed (exit ${exitCode}${killed ? ', killed' : ''})`,
+        { stderr: logs.trim().slice(-4000), exitCode }
+      )
+    }
+
+    let stat
+    try {
+      stat = Fs.statSync(outputHostPath)
+    } catch (err) {
+      throw new ConversionError(`sandbox conversion produced no output file`, { stderr: logs.trim().slice(-4000) })
+    }
+    if (!stat.isFile()) {
+      throw new ConversionError('sandbox conversion output is not a regular file', {
+        stderr: logs.trim().slice(-4000),
+      })
+    }
+
+    Fs.copyFileSync(outputHostPath, destPath)
+    logger.info(
+      { runName, sizeBytes: stat.size, durationMs: Date.now() - t0 },
+      'sandbox conversion completed'
+    )
+    return { container: runName, exitCode, outputHostPath: destPath, durationMs: Date.now() - t0 }
+  } finally {
+    // Best-effort cleanup: container + scratch dir (the dir holds the original
+    // PDF — do not leave it behind).
+    if (containerCreated) {
+      await _killAndRemove(socketPath, runName).catch((e) => {
+        logger.warn({ err: e, runName }, 'sandbox conversion: cleanup failed')
+      })
+    }
+    Fs.rmSync(runDir, { recursive: true, force: true })
+  }
+}
+
+async function _killAndRemove(socketPath, name) {
+  try {
+    // POST /kill (GET is not served by this daemon); 409 = not running → fine
+    await request(socketPath, 'POST', `/${API_VERSION}/containers/${name}/kill`, { timeoutMs: 10000 })
+  } catch (err) {
+    // not running → fine
+  }
+  try {
+    await request(socketPath, 'DELETE', `/${API_VERSION}/containers/${name}?force=1`, { timeoutMs: 10000 })
+  } catch (err) {
+    // already gone → fine
+  }
+}
+
+export default { runConversion }
@@ -99,8 +99,29 @@ const settings = {

  enableConversions: process.env.ENABLE_CONVERSIONS === 'true',

+  // PDF→image conversion backend (template gallery previews/thumbnails):
+  //   'imagemagick'        – local, via ImageMagick `convert` (default; binary required)
+  //   'pdftocairo'         – local, via the `pdftocairo` binary (poppler)
+  //   'pdftocairo-sandbox' – runs `pdftocairo` in a throwaway sibling container:
+  //                          no network, CapDrop ALL, no-new-privileges, memory
+  //                          cap (see app/js/SandboxConverterRunner.js).
+  //                          requires a Docker socket + a daemon-host-visible
+  //                          scratch dir (CONVERSION_SANDBOX_HOST_DIR).
  converter: process.env.CONVERTER || 'imagemagick',

+  sandboxConversion: {
+    image: process.env.CONVERSION_SANDBOX_IMAGE || 'sharelatex/pdftocairo:24.02',
+    dockerSocketPath: process.env.CONVERSION_DOCKER_SOCKET || '/var/run/docker.sock',
+    // The scratch dir has two views of the same path (the overleaf container
+    // mounts ./data): `containerDir` for this process, `hostDir` for the Docker
+    // daemon's bind mount. Both must be set when sandbox conversion is used.
+    hostDir: process.env.CONVERSION_SANDBOX_HOST_DIR || null,
+    containerDir: process.env.CONVERSION_SANDBOX_DIR || null,
+    memoryBytes:
+      parseInt(process.env.CONVERSION_SANDBOX_MEMORY_BYTES, 10) || 512 * 1024 * 1024,
+    timeoutMs: parseInt(process.env.CONVERSION_SANDBOX_TIMEOUT_MS, 10) || 40000,
+  },
+
  gracefulShutdownDelayInMs:
    parseInt(process.env.GRACEFUL_SHUTDOWN_DELAY_SECONDS ?? '30', 10) * 1000,
 }
@@ -0,0 +1,54 @@
+# Build the a8m/envsubst binary, as it supports default values,
+# which the gnu envsubst (from gettext-base) does not.
+FROM golang:1.25.5-alpine AS envsubst_builder
+
+WORKDIR /build
+
+RUN go install github.com/a8m/envsubst/cmd/envsubst@latest
+
+FROM maven:3-amazoncorretto-21-debian AS base
+
+RUN apt-get update && apt-get install -y make git sqlite3 curl \
+ && rm -rf /var/lib/apt/lists
+
+COPY --from=envsubst_builder /go/bin/envsubst /opt/envsubst
+RUN chmod +x /opt/envsubst
+
+RUN useradd --create-home node
+
+FROM base AS builder
+
+COPY . /app
+
+WORKDIR /app
+
+RUN make package \
+# The name of the created jar contains the current version tag.
+# Rename it to a static path that can be used for copying.
+&&  find /app/target \
+      -name 'writelatex-git-bridge*jar-with-dependencies.jar' \
+      -exec mv {} /git-bridge.jar \;
+
+FROM amazoncorretto:21-alpine
+
+RUN apk add --update --no-cache bash git sqlite procps htop net-tools jemalloc util-linux
+
+ENV LD_PRELOAD=/usr/lib/libjemalloc.so.2
+
+RUN adduser -D node
+
+COPY --from=builder /git-bridge.jar /
+
+COPY --from=envsubst_builder /go/bin/envsubst /opt/envsubst
+RUN chmod +x /opt/envsubst
+
+COPY conf/envsubst_template.json envsubst_template.json
+COPY start.sh start.sh
+COPY server-pro-start.sh server-pro-start.sh
+
+RUN mkdir conf
+RUN chown node:node conf
+
+USER node
+
+CMD ["/start.sh"]
@@ -0,0 +1,89 @@
+# git-bridge makefile
+
+MVN_OPTS := --no-transfer-progress
+MVN_TARGET := target/writelatex-git-bridge-1.0-SNAPSHOT-jar-with-dependencies.jar
+
+export BUILD_NUMBER ?= local
+export BRANCH_NAME ?= $(shell git rev-parse --abbrev-ref HEAD)
+BRANCH_NAME_TAG_SAFE = $(shell echo $(BRANCH_NAME) | sed 's/\//\-\-/g')
+export COMMIT_SHA ?= $(shell git rev-parse HEAD)
+PROJECT_NAME = git-bridge
+
+IMAGE_CI ?= ci/$(PROJECT_NAME):$(BRANCH_NAME_TAG_SAFE)-$(BUILD_NUMBER)
+IMAGE_REPO ?= us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME)
+IMAGE_REPO_BRANCH ?= $(IMAGE_REPO):$(BRANCH_NAME_TAG_SAFE)
+IMAGE_REPO_MAIN ?= $(IMAGE_REPO):main
+IMAGE_REPO_FINAL ?= $(IMAGE_REPO_BRANCH)-$(BUILD_NUMBER)
+
+runtime-conf:
+	/opt/envsubst < conf/envsubst_template.json > conf/runtime.json
+
+
+run: $(MVN_TARGET) runtime-conf
+	@exec java $(GIT_BRIDGE_JVM_ARGS) -jar $(MVN_TARGET) conf/runtime.json
+
+
+$(MVN_TARGET): $(shell find src -type f) pom.xml
+	mvn $(MVN_OPTS) package -DskipTests
+
+build: $(MVN_TARGET)
+
+docker_build_base:
+	docker build --pull \
+		--build-arg BUILDKIT_INLINE_CACHE=1 \
+		--cache-from $(IMAGE_REPO_BRANCH) \
+		--cache-from $(IMAGE_REPO_MAIN) \
+		--tag $(IMAGE_CI) \
+		--target base \
+	.
+
+docker_build:
+	docker build --pull \
+		--build-arg BUILDKIT_INLINE_CACHE=1 \
+		--cache-from $(IMAGE_REPO_BRANCH) \
+		--cache-from $(IMAGE_REPO_MAIN) \
+		--tag $(IMAGE_REPO_BRANCH) \
+		--tag $(IMAGE_REPO_FINAL) \
+	.
+
+format:
+	mvn $(MVN_OPTS) com.spotify.fmt:fmt-maven-plugin:check
+
+docker_format:
+	docker run --rm -v $(PWD):$(PWD) -w $(PWD) --user node $(IMAGE_CI) make format
+
+format_fix:
+	mvn $(MVN_OPTS) com.spotify.fmt:fmt-maven-plugin:format
+
+
+test:
+	mvn $(MVN_OPTS) test
+
+docker_test:
+	docker run --rm -v $(PWD):$(PWD) -w $(PWD) --user node $(IMAGE_CI) make test
+
+clean:
+	mvn $(MVN_OPTS) clean
+
+
+package: clean
+	mvn $(MVN_OPTS) package -DskipTests
+
+refresh_cache: refresh_cache_branch
+refresh_cache_branch:
+	docker inspect $(IMAGE_REPO_BRANCH) > /dev/null && docker pull $(IMAGE_REPO_BRANCH) || true
+refresh_cache: refresh_cache_latest
+refresh_cache_latest:
+	docker inspect $(IMAGE_REPO_MAIN) > /dev/null && docker pull $(IMAGE_REPO_MAIN) || true
+
+push:
+	docker push $(IMAGE_REPO_FINAL)
+
+push_branch:
+	docker push $(IMAGE_REPO_BRANCH)
+
+clean_ci:
+	-docker rmi -f $(IMAGE_CI) $(IMAGE_REPO_FINAL)
+	-git clean -xdf .
+
+.PHONY: run package build clean test runtime-conf
@@ -0,0 +1 @@
+24.14.1
@@ -0,0 +1,41 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+FROM node:24.14.1 AS base
+
+ENV PATH="/overleaf/node_modules/.bin:$PATH"
+ENV COREPACK_HOME=/opt/corepack
+RUN corepack enable && corepack install -g yarn@4.14.1
+ENV COREPACK_ENABLE_NETWORK=0
+
+WORKDIR /overleaf/services/linked-url-proxy
+
+# 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 yarn.lock .yarnrc.yml /overleaf/
+COPY libraries/fetch-utils/package.json /overleaf/libraries/fetch-utils/package.json
+COPY libraries/logger/package.json /overleaf/libraries/logger/package.json
+COPY libraries/metrics/package.json /overleaf/libraries/metrics/package.json
+COPY libraries/o-error/package.json /overleaf/libraries/o-error/package.json
+COPY libraries/settings/package.json /overleaf/libraries/settings/package.json
+COPY services/linked-url-proxy/package.json /overleaf/services/linked-url-proxy/package.json
+COPY .yarn/patches/ /overleaf/.yarn/patches/
+
+RUN cd /overleaf && yarn workspaces focus @overleaf/linked-url-proxy overleaf
+
+COPY libraries/fetch-utils/ /overleaf/libraries/fetch-utils/
+COPY libraries/logger/ /overleaf/libraries/logger/
+COPY libraries/metrics/ /overleaf/libraries/metrics/
+COPY libraries/o-error/ /overleaf/libraries/o-error/
+COPY libraries/settings/ /overleaf/libraries/settings/
+COPY services/linked-url-proxy/ /overleaf/services/linked-url-proxy/
+
+FROM app
+USER node
+
+CMD ["node", "--expose-gc", "app.mjs"]
@@ -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
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+  14. Revised Versions of this License.
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+  17. Interpretation of Sections 15 and 16.
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+                     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.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
@@ -0,0 +1,174 @@
+# 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 = linked-url-proxy
+BUILD_DIR_NAME = $(shell pwd | xargs basename | tr -cd '[a-zA-Z0-9_.\-]')
+HERE=$(shell pwd)
+export MONOREPO ?= $(shell cd ../../ && pwd)
+IMAGE_CI ?= ci/$(PROJECT_NAME):$(BRANCH_NAME)-$(BUILD_NUMBER)
+IMAGE_REPO ?= us-east1-docker.pkg.dev/overleaf-ops/ol-docker/$(PROJECT_NAME)
+IMAGE_REPO_FINAL ?= $(IMAGE_REPO):$(BRANCH_NAME)-$(BUILD_NUMBER)
+IMAGE_CACHE ?= $(IMAGE_REPO):cache-$(shell cat \
+	$(MONOREPO)/package.json \
+	$(MONOREPO)/package-lock.json \
+	$(MONOREPO)/libraries/fetch-utils/package.json \
+	$(MONOREPO)/libraries/logger/package.json \
+	$(MONOREPO)/libraries/metrics/package.json \
+	$(MONOREPO)/libraries/o-error/package.json \
+	$(MONOREPO)/libraries/overleaf-editor-core/package.json \
+	$(MONOREPO)/libraries/promise-utils/package.json \
+	$(MONOREPO)/libraries/settings/package.json \
+	$(MONOREPO)/libraries/stream-utils/package.json \
+	$(MONOREPO)/services/linked-url-proxy/package.json \
+	$(MONOREPO)/patches/* \
+| sha256sum | cut -d '-' -f1)
+
+DOCKER_COMPOSE_FLAGS ?= -f docker-compose.yml
+DOCKER_COMPOSE := BUILD_NUMBER=$(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 $(IMAGE_CI)
+	-docker rmi $(IMAGE_REPO_FINAL)
+	-$(DOCKER_COMPOSE_TEST_UNIT) down --remove-orphans --rmi local --timeout 0 --volumes
+	-$(DOCKER_COMPOSE_TEST_ACCEPTANCE) down --remove-orphans --rmi local --timeout 0 --volumes
+	-rm -rf reports/
+
+# 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:24.14.1 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 --volume $(MONOREPO)/services/linked-url-proxy/reports:/overleaf/services/linked-url-proxy/reports $(IMAGE_CI) npm run --silent
+
+# Same but from the top of the monorepo
+RUN_LINTING_MONOREPO = docker run --rm -v $(MONOREPO):$(MONOREPO) -w $(MONOREPO) node:24.14.1 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 -- --format json --output-file reports/eslint.json
+	sed -i 's_"filePath":"/overleaf_"filePath":"$(MONOREPO)_g' reports/eslint.json
+
+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))
+	$(DOCKER_COMPOSE_TEST_UNIT) run --rm test_unit
+endif
+
+test_clean: test_unit_clean
+test_unit_clean:
+ifneq (,$(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 $(IMAGE_CI) \
+		--tag $(IMAGE_CACHE) \
+		--tag $(IMAGE_REPO_FINAL) \
+		--cache-from $(IMAGE_CACHE) \
+		--file Dockerfile \
+		../..
+
+tar:
+	$(DOCKER_COMPOSE) up tar
+
+push:
+	docker push $(IMAGE_REPO_FINAL)
+
+push_branch:
+	docker push $(IMAGE_CACHE)
+
+.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 \
@@ -0,0 +1,10 @@
+overleaf/linked-url-proxy
+===============
+
+An API for providing linked url proxy
+
+License
+=======
+The code in this repository is released under the GNU AFFERO GENERAL PUBLIC LICENSE, version 3.
+
+Copyright (c) yu-i-i (https://github.com/yu-i-i/overleaf-cep), 2025.
@@ -0,0 +1,39 @@
+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 LinkedUrlProxyController from './app/js/LinkedUrlProxyController.mjs'
+
+Metrics.open_sockets.monitor(true)
+Metrics.memory.monitor(logger)
+Metrics.leaked_sockets.monitor(logger)
+
+const app = express()
+
+Metrics.injectMetricsRoute(app)
+app.use(Metrics.http.monitor(logger))
+
+app.get('/', LinkedUrlProxyController.proxy)
+app.get('/status', (req, res) => res.send({ status: 'linked-url-proxy is up' }))
+
+const host = Settings.internal.linkedUrlProxy.host
+const port = Settings.internal.linkedUrlProxy.port
+
+logger.debug('Listening at', { host, port })
+
+const server = app.listen(port, host, function (error) {
+  if (error) {
+    throw error
+  }
+  logger.info({ host, port }, 'linked-url-proxy HTTP server starting up')
+})
+
+process.on('SIGTERM', () => {
+  server.close(() => {
+    logger.info({ host, port }, 'linked-url-proxy HTTP server closed')
+    Metrics.close()
+  })
+})
+
@@ -0,0 +1,201 @@
+import dns from 'dns/promises'
+import { sanitizeUrl } from 'strict-url-sanitise'
+import normalizeUrlPath from 'als-normalize-urlpath'
+import ipaddr from 'ipaddr.js'
+import { URL } from 'node:url'
+import { Transform } from 'node:stream'
+import logger from '@overleaf/logger'
+import Settings from '@overleaf/settings'
+import { fetchStreamWithResponse, RequestFailedError } from '@overleaf/fetch-utils'
+import { Agent } from 'undici'
+
+function isAllowedResource(targetUrl) {
+  if (!Settings.allowedResources) return false
+  return Settings.allowedResources.test(targetUrl)
+}
+
+function isBlockedIp(ipStr, targetUrl) {
+  const addr = ipaddr.parse(ipStr)
+  if (addr.kind() === 'ipv6' && addr.isIPv4MappedAddress()) {
+    return isBlockedIp(addr.toIPv4Address().toString(), targetUrl)
+  }
+
+  const range = addr.range()
+  if (!['unicast'].includes(addr.range())) {
+    return true
+  }
+
+  for (const blocked of Settings.blockedNetworks) {
+    try {
+      const net = ipaddr.parseCIDR(blocked)
+      if (addr.match(net)) return true
+    } catch (e) {
+      logger.error({ blocked, error: e }, 'Invalid blockedNetworks entry')
+      const err = new Error(`Invalid blockedNetworks entry: ${blocked}`)
+      err.info = { status: 500 }
+      throw err
+    }
+  }
+  return false
+}
+
+async function checkUrlAccess(hostname, targetUrl) {
+  const records = await dns.lookup(hostname, { all: true }).catch(() => [])
+  if (!records.length) {
+    const err = new Error(`DNS lookup failed for ${hostname}`)
+    err.info = { status: 421 }
+    throw err
+  }
+// Permit explicitly allowed resources without checking blocked IPs
+  if (isAllowedResource(targetUrl)) return records[0].address
+  for (const { address } of records) {
+    if (isBlockedIp(address, targetUrl)) {
+      const err = new Error(`Blocked IP address: ${address}`)
+      err.info = { status: 403 }
+      throw err
+    }
+  }
+  return records[0].address
+}
+
+async function validateAndFetch(rawUrl, redirectCount = 0) {
+  if (redirectCount > Settings.maxRedirects) {
+    const err = new Error('Too many redirects')
+    err.info = { status: 421 }
+    throw err
+  }
+
+  const sanitizedUrl = sanitizeUrl(rawUrl)
+  if (!sanitizedUrl) {
+    const err = new Error(`Invalid or unsafe URL: ${rawUrl}`)
+    err.info = { status: 400 }
+    throw err
+  }
+
+  const url = new URL(sanitizedUrl)
+
+  if (!['http:', 'https:'].includes(url.protocol)) {
+    const err = new Error(`${url.protocol} protocol is not allowed`)
+    err.info = { status: 400 }
+    throw err
+  }
+
+  const normalizedPath = normalizeUrlPath(url.pathname).pathname
+
+  if (!normalizedPath) {
+    const err = new Error(`Invalid or unsafe URL path: ${url.pathname}`)
+    err.info = { status: 400 }
+    throw err
+  }
+
+  const normalizedUrl = url.toString()
+
+  // check DNS and allowed resources
+  const validatedIp = await checkUrlAccess(url.hostname, normalizedUrl)
+
+  // pin fetch to validated IP to prevent DNS rebinding
+  const agent = new Agent({
+    connect: {
+      lookup(hostname, opts, cb) {
+        cb(null, validatedIp, 4)
+      }
+    }
+  })
+
+  const opts = {
+    redirect: 'manual',
+    timeout: Settings.fetchTimeoutMs,
+    headers: Settings.userAgentHeader,
+  }
+
+  try {
+    const { stream, response } = await fetchStreamWithResponse(normalizedUrl, { ...opts, dispatcher: agent })
+
+    const contentLengthHeader = response.headers.get('content-length')
+    if (contentLengthHeader) {
+      const n = parseInt(contentLengthHeader, 10)
+      if (!Number.isNaN(n) && n > Settings.maxUploadSize) {
+        const err = new Error('file too large')
+	err.info = { status: 413 }
+        try { stream.destroy() } catch (_) {}
+        throw err
+      }
+    }
+
+    return {
+      stream,
+      response,
+      headers: Object.fromEntries(response.headers.entries()),
+    }
+  } catch (err) {
+    if (err instanceof RequestFailedError) {
+      const status = err.info.status
+
+      // Handle redirects
+      if (status >= 300 && status < 400) {
+        const location = err.response.headers.get('Location')
+        if (location) {
+          const nextUrl = new URL(location, normalizedUrl).toString()
+          return validateAndFetch(nextUrl, redirectCount + 1)
+        } else {
+          const e = new Error('Redirect response missing Location header')
+	  e.info = { status: 421 }
+          throw e
+        }
+      }
+      throw err
+    }
+    if (!err?.info?.status) {
+      if(err.type === "request-timeout") {
+        err.info = { status: 408 }
+      } else err.info = { status: 422 }
+    }
+    throw err
+  }
+}
+
+async function proxy(req, res) {
+  try {
+    const u = new URL(req.url, `http://${req.headers.host}`)
+    const targetUrl = u.searchParams.get('url')
+    if (!targetUrl) {
+      res.writeHead(400, { 'Content-Type': 'text/plain' })
+      res.end('Missing ?url parameter')
+      return
+    }
+
+    const { stream: upstreamStream, response, headers } = await validateAndFetch(targetUrl)
+
+    res.statusCode = response.status || 200
+    res.setHeader('Content-Type', headers['content-type'] || 'application/octet-stream')
+    res.setHeader('Cache-Control', 'no-store')
+
+    function onError(err) {
+      logger.info({ err, url: req.url }, 'linked-url-proxy request failed')
+      try { upstreamStream.destroy() } catch (_) {}
+      if (!res.headersSent) {
+	let body = `Error: ${err?.message ?? String(err)}`
+        res.writeHead(err?.info?.status || 503, { 'Content-Type': 'text/plain' })
+        res.end(body)
+      } else {
+        try { res.destroy() } catch (_) {}
+      }
+    }
+
+    upstreamStream.on('error', onError)
+    upstreamStream.pipe(res)
+
+  } catch (err) {
+    const status = err.info?.status || 500
+    logger.info({ linkedUrl: err.message, status, url: req.url }, 'linked-url-proxy request failed')
+    let body = `Error: ${err.message || String(err)}`
+    try {
+      res.writeHead(status, { 'Content-Type': 'text/plain' })
+      res.end(body)
+    } catch {
+      try { res.end() } catch {}
+    }
+  }
+}
+
+export default { proxy }
@@ -0,0 +1,6 @@
+linked-url-proxy
+--env-add=
+--env-pass-through=
+--esmock-loader=False
+--node-version=24.14.1
+--public-repo=False
@@ -0,0 +1,27 @@
+const blockedNetworks = (process.env.OVERLEAF_LINKED_URL_BLOCKED_NETWORKS || '')
+  .split(/[,\s]+/)
+  .filter(Boolean)
+  .map(cidr => cidr.trim())
+
+const allowedResources = process.env.OVERLEAF_LINKED_URL_ALLOWED_RESOURCES
+  ? new RegExp(process.env.OVERLEAF_LINKED_URL_ALLOWED_RESOURCES)
+  : null
+
+module.exports = {
+  maxRedirects: 5,
+  fetchTimeoutMs: 30000,
+  blockedNetworks,
+  allowedResources,
+  userAgentHeader: {
+     'User-Agent': 'Overleaf Extended CE - LinkedURLProxy (https://github.com/yu-i-i/overleaf-cep)'
+  },
+  maxUploadSize: process.env.MAX_UPLOAD_SIZE
+    ? parseInt(process.env.MAX_UPLOAD_SIZE, 10) * 1024 * 1024
+    : 50 * 1024 * 1024, // 50 MB
+  internal: {
+    linkedUrlProxy: {
+      port: 3066,
+      host: process.env.LINKED_URL_PROXY_HOST || '127.0.0.1',
+    },
+  },
+}
@@ -0,0 +1,32 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+services:
+  test_unit:
+    image: ci/$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
+      POSTGRES_HOST: postgres
+      MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    user: node
+    command: npm run test:acceptance
+
+  tar:
+    build: .
+    image: ci/$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
@@ -0,0 +1,36 @@
+# This file was auto-generated, do not edit it directly.
+# Instead run bin/update_build_scripts from
+# https://github.com/overleaf/internal/
+
+services:
+  test_unit:
+    image: node:24.14.1
+    volumes:
+      - .:/overleaf/services/linked-url-proxy
+      - ../../node_modules:/overleaf/node_modules
+      - ../../libraries:/overleaf/libraries
+    working_dir: /overleaf/services/linked-url-proxy
+    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:24.14.1
+    volumes:
+      - .:/overleaf/services/linked-url-proxy
+      - ../../node_modules:/overleaf/node_modules
+      - ../../libraries:/overleaf/libraries
+    working_dir: /overleaf/services/linked-url-proxy
+    environment:
+      ELASTIC_SEARCH_DSN: es:9200
+      POSTGRES_HOST: postgres
+      MOCHA_GREP: ${MOCHA_GREP}
+      LOG_LEVEL: ${LOG_LEVEL:-}
+      NODE_ENV: test
+      NODE_OPTIONS: "--unhandled-rejections=strict"
+    user: node
+    command: npm run --silent test:acceptance
@@ -0,0 +1,23 @@
+{
+  "name": "@overleaf/linked-url-proxy",
+  "description": "An API for providing linked url proxy",
+  "private": true,
+  "main": "app.mjs",
+  "scripts": {
+    "start": "node app.mjs",
+    "nodemon": "node --watch app.mjs"
+  },
+  "version": "0.1.1",
+  "dependencies": {
+    "@overleaf/settings": "workspace:*",
+    "@overleaf/logger": "workspace:*",
+    "@overleaf/metrics": "workspace:*",
+    "@overleaf/fetch-utils": "workspace:*",
+    "async": "^3.2.5",
+    "express": "^4.22.1",
+    "ipaddr.js": "^2.4.0",
+    "als-normalize-urlpath": "^2.3.0",
+    "strict-url-sanitise": "^0.0.1",
+    "undici": "^7.29.1"
+  }
+}
@@ -0,0 +1,13 @@
+{
+  "extends": "../../tsconfig.backend.json",
+  "include": [
+    "app.mjs",
+    "app.ts",
+    "app/js/**/*",
+    "benchmarks/**/*",
+    "config/**/*",
+    "scripts/**/*",
+    "test/**/*",
+    "types"
+  ]
+}
@@ -120,7 +120,8 @@ const AuthenticationController = {
      analyticsId: user.analyticsId || user._id,
      alphaProgram: user.alphaProgram || undefined, // only store if set
      betaProgram: user.betaProgram || undefined, // only store if set
-      labsProgram: user.labsProgram, // always store, we could revert about 1 week after deploying this change.
+      labsProgram: user.labsProgram || undefined, // only store if set
+      externalAuth: user.externalAuth || false,
    }
    if (user.isAdmin) {
      lightUser.isAdmin = true
@@ -230,6 +230,7 @@ const transferOwnershipSchema = z.object({
  }),
  body: z.strictObject({
    user_id: zz.objectId(),
+    skipEmails: z.boolean().optional(),
  }),
 })

@@ -241,6 +242,7 @@ const transferOwnershipFallbackSchema = z.object({
  }),
  body: z.object({
    user_id: zz.objectId(),
+    skipEmails: z.boolean().optional(),
  }),
 })

@@ -259,6 +261,7 @@ async function transferOwnership(req, res, next) {
        allowTransferToNonCollaborators: hasAdminAccess(sessionUser),
        sessionUserId: new ObjectId(sessionUser._id),
        ipAddress: req.ip,
+        skipEmails: body.skipEmails
      }
    )
    res.sendStatus(204)
@@ -11,6 +11,7 @@ import EmailHelper from '../Helpers/EmailHelper.mjs'
 import EditorRealTimeController from '../Editor/EditorRealTimeController.mjs'
 import AnalyticsManager from '../Analytics/AnalyticsManager.mjs'
 import SessionManager from '../Authentication/SessionManager.mjs'
+import Features from '../../infrastructure/Features.mjs'
 import { RateLimiter } from '../../infrastructure/RateLimiter.mjs'
 import { z, zz, parseReq } from '../../infrastructure/Validation.mjs'
 import { expressify } from '@overleaf/promise-utils'
@@ -386,7 +387,11 @@ async function viewInvite(req, res) {
      user_first_name: owner.first_name,
    }
    AuthenticationController.setRedirectInSession(req)
-    return res.redirect('/register')
+    if (Features.hasFeature('registration-page')) {
+      return res.redirect('/register')
+    } else {
+      return res.redirect('/login')
+    }
  }

  // cleanup if set for register page
@@ -442,6 +447,12 @@ async function viewSharingLink(req, res) {
    if (!isPublicSharingLink) {
      AuthenticationController.setRedirectInSession(req)
      return res.redirect('/register')
+      AuthenticationController.setRedirectInSession(req)
+      if (Features.hasFeature('registration-page')) {
+        return res.redirect('/register')
+      } else {
+        return res.redirect('/login')
+      }
    }
  }

@@ -1114,7 +1114,7 @@ async function _getContentFromMongo(projectId) {

 function _finaliseRequest(projectId, options, project, docs, files) {
  const resources = []
-  let flags
+  let flags = []
  let rootResourcePath = options.rootResourcePath
  let rootResourcePathOverride = null
  let hasMainFile = false
@@ -1182,9 +1182,13 @@ function _finaliseRequest(projectId, options, project, docs, files) {
  if (options.fileLineErrors) {
    flags = ['-file-line-error']
  }
+  if (process.env.TEX_COMPILER_EXTRA_FLAGS) {
+    flags.push(...process.env.TEX_COMPILER_EXTRA_FLAGS.split(/\s+/).filter(Boolean))
+  }
  const hasPremiumCompiles = ['alpha', 'priority'].includes(
    options.compileGroup
  )
+
  return {
    compile: {
      options: {
@@ -1195,8 +1199,8 @@ function _finaliseRequest(projectId, options, project, docs, files) {
        timeout: options.timeout,
        imageName: project.imageName,
        draft: Boolean(options.draft),
-        // enable for premium compiles only
-        png2pdf: Boolean(options.png2pdf) && hasPremiumCompiles,
+        // CE: premium-compile (alpha/priority) gate removed
+        png2pdf: Boolean(options.png2pdf),
        // enable for premium compiles on an image that has a checkpointing build
        enableCheckpoint:
          Boolean(options.checkpointing) &&
@@ -453,7 +453,8 @@ const _CompileController = {
      enablePng2Pdf,
      enableCheckpointCompiles,
    } = await _getSplitTestOptions(req, res)
-    if (Features.hasFeature('saas')) {
+    // CE: saas feature gate removed so png2pdf / compile-from-history options are sent
+    if (true) {
      options.compileFromClsiCache = true
      options.populateClsiCache = true
      options.compileFromHistory = compileFromHistory
@@ -123,7 +123,12 @@ const setDocumentSchema = z.object({
    version: z.number().int(),
    ranges: rangesSchemas.ranges,
    lastUpdatedAt: z.coerce.number().int().positive().nullish(),
-    lastUpdatedBy: zz.objectId().nullish(),
+    // document-updater records the acting user of each update it applies and
+    // flushes it back here as lastUpdatedBy (see its RedisManager's
+    // updateMeta.user_id). For a link-sharing visitor with no account that
+    // is the sentinel 'anonymous-user', which real-time sets in Router.js --
+    // never a user id. It is accepted here and normalised to null below.
+    lastUpdatedBy: zz.objectId().or(z.literal('anonymous-user')).nullish(),
  }),
 })

@@ -132,7 +137,11 @@ async function setDocument(req, res) {
    logOnly: true,
  })
  const { Project_id: projectId, doc_id: docId } = params
-  const { lines, version, ranges, lastUpdatedAt, lastUpdatedBy } = body
+  const { lines, version, ranges, lastUpdatedAt } = body
+  // an anonymous editor has no user id to record on the project, and
+  // Project.lastUpdatedBy is an ObjectId ref -- see setDocumentSchema
+  const lastUpdatedBy =
+    body.lastUpdatedBy === 'anonymous-user' ? null : body.lastUpdatedBy
  const result = await ProjectEntityUpdateHandler.promises.updateDocLines(
    projectId,
    docId,
@@ -604,6 +604,58 @@ const EditorController = {
    )
  },

+  // ─────────────────────────────────────────────────────────────
+  // LanguageTool settings (project-wide), mirrored to all clients
+  // in the room (see use-project-wide-settings-socket-listener).
+  // ─────────────────────────────────────────────────────────────
+  setLanguageToolEnabled(projectId, enabled, callback) {
+    ProjectOptionsHandler.setLanguageToolEnabled(projectId, enabled, function (
+      err
+    ) {
+      if (err) {
+        return callback(err)
+      }
+      EditorRealTimeController.emitToRoom(
+        projectId,
+        'languageToolEnabledUpdated',
+        enabled
+      )
+      callback()
+    })
+  },
+
+  setLanguageToolPicky(projectId, picky, callback) {
+    ProjectOptionsHandler.setLanguageToolPicky(projectId, picky, function (err) {
+      if (err) {
+        return callback(err)
+      }
+      EditorRealTimeController.emitToRoom(
+        projectId,
+        'languageToolPickyUpdated',
+        picky
+      )
+      callback()
+    })
+  },
+
+  setLanguageToolLanguage(projectId, language, callback) {
+    ProjectOptionsHandler.setLanguageToolLanguage(
+      projectId,
+      language,
+      function (err) {
+        if (err) {
+          return callback(err)
+        }
+        EditorRealTimeController.emitToRoom(
+          projectId,
+          'languageToolLanguageUpdated',
+          language
+        )
+        callback()
+      }
+    )
+  },
+
  setPublicAccessLevel(projectId, newAccessLevel, callback) {
    async.series(
      [
@@ -747,6 +799,13 @@ EditorController.promises = {
  setImageName: promisify(EditorController.setImageName),
  setPng2pdf: promisify(EditorController.setPng2pdf),
  setSpellCheckLanguage: promisify(EditorController.setSpellCheckLanguage),
+  setLanguageToolEnabled: promisify(
+    EditorController.setLanguageToolEnabled
+  ),
+  setLanguageToolPicky: promisify(EditorController.setLanguageToolPicky),
+  setLanguageToolLanguage: promisify(
+    EditorController.setLanguageToolLanguage
+  ),
  setPublicAccessLevel: promisify(EditorController.setPublicAccessLevel),
  setRootDoc: promisify(EditorController.setRootDoc),
  setMainBibliographyDoc: promisify(EditorController.setMainBibliographyDoc),
@@ -77,6 +77,7 @@ function getClient() {
 }

 async function sendEmail(options, emailType) {
+console.log("EMAIL_SETTINGS  = ", EMAIL_SETTINGS)
  try {
    const canContinue = await checkCanSendEmail(options)
    metrics.inc('email_status', {
@@ -363,7 +363,29 @@ export default LinkedFilesController = {
      },
      'failed to create/refresh linked file'
    )
-    if (error instanceof AccessDeniedError) {
+    if (
+      error instanceof AccessDeniedError &&
+      error.message === 'Zotero account not linked'
+    ) {
+      res.status(400)
+      plainTextResponse(
+        res,
+        res.locals.translate(
+          'zotero_reference_loading_error_not_linked'
+        )
+      )
+    } else if (
+      error instanceof AccessDeniedError &&
+      error.message === 'Zotero access denied'
+    ) {
+      res.status(403)
+      plainTextResponse(
+        res,
+        res.locals.translate(
+          'zotero_reference_loading_error_forbidden'
+        )
+      )
+    } else if (error instanceof AccessDeniedError) {
      res.status(403)
      plainTextResponse(
        res,
@@ -405,8 +427,7 @@ export default LinkedFilesController = {
      } else {
        plainTextResponse(
          res,
-          `Your URL could not be reached (${
-            error.info?.status || error.cause?.info?.status
+          `Your URL could not be reached (${error.info?.status || error.cause?.info?.status
          } status code). Please check it and try again.`
        )
      }
@@ -72,6 +72,7 @@ async function getUserForPasswordResetToken(token) {
    'overleaf.id': 1,
    email: 1,
    must_reconfirm: 1,
+    hashedPassword: 1,
  })

  await assertUserPermissions(user, ['change-password'])
@@ -109,6 +109,9 @@ const updateProjectSettingsSchema = z.object({
    rootDocId: zz.objectId().optional(),
    spellCheckLanguage: z.string().optional(),
    referenceFormat: z.enum(['bibtex', 'biblatex']).optional(),
+    languageToolEnabled: z.boolean().optional(),
+    languageToolPicky: z.boolean().optional(),
+    languageToolLanguage: z.string().optional(),
  }),
 })

@@ -127,6 +130,9 @@ const updateProjectSettingsFallbackSchema = z.object({
    rootDocId: zz.objectId().optional(),
    spellCheckLanguage: z.string().optional(),
    referenceFormat: z.enum(['bibtex', 'biblatex']).optional(),
+    languageToolEnabled: z.boolean().optional(),
+    languageToolPicky: z.boolean().optional(),
+    languageToolLanguage: z.string().optional(),
  }),
 })

@@ -228,6 +234,27 @@ const _ProjectController = {
      )
    }

+    if (body.languageToolEnabled != null) {
+      await EditorController.promises.setLanguageToolEnabled(
+        projectId,
+        body.languageToolEnabled
+      )
+    }
+
+    if (body.languageToolPicky != null) {
+      await EditorController.promises.setLanguageToolPicky(
+        projectId,
+        body.languageToolPicky
+      )
+    }
+
+    if (body.languageToolLanguage != null) {
+      await EditorController.promises.setLanguageToolLanguage(
+        projectId,
+        body.languageToolLanguage
+      )
+    }
+
    if (body.rootDocId != null) {
      await EditorController.promises.setRootDoc(projectId, body.rootDocId)
    }
@@ -717,6 +744,7 @@ const _ProjectController = {
          png2pdf: 1,
          overleaf: 1,
          tokens: 1,
+          imageName: 1,
        }),
        userIsMemberOfGroupSubscription: sessionUser
          ? (async () =>
@@ -807,6 +835,8 @@ const _ProjectController = {
        user
      )

+      if (!project.imageName) await EditorController.promises.setImageName(projectId, Settings.currentImageName)
+
      const privilegeLevel =
        await AuthorizationManager.promises.getPrivilegeLevelForProject(
          userId,
@@ -930,7 +960,7 @@ const _ProjectController = {
      }

      const isAdminOrTemplateOwner =
-        hasAdminAccess(user) || Settings.templates?.user_id === userId
+        hasAdminAccess(user) || Settings.templates?.nonAdminCanManage || Settings.templates?.user_id === userId
      const showTemplatesServerPro =
        Features.hasFeature('templates-server-pro') && isAdminOrTemplateOwner

@@ -274,7 +274,7 @@ async function _createBlankProject(
    _id: 1,
    ...SplitTestUserGetter.getProjection('history-ranges-support'),
  })
-  project.spellCheckLanguage = user.ace.spellCheckLanguage
+  project.spellCheckLanguage = attributes.spellCheckLanguage || user.ace.spellCheckLanguage
  const historyRangesSupportAssignment =
    await SplitTestHandler.promises.getAssignmentForMongoUser(
      user,
@@ -79,7 +79,7 @@ async function unmarkAsDeletedByExternalSource(projectId) {
  ).exec()
 }

-async function deleteUsersProjects(userId) {
+async function deleteUsersProjects(userId, options = {}) {
  const projects = await Project.find({ owner_ref: userId }).exec()
  logger.info(
    { userId, projectCount: projects.length },
@@ -87,6 +87,7 @@ async function deleteUsersProjects(userId) {
  )
  await promiseMapWithLimit(5, projects, project =>
    deleteProject(project._id, {
+      ...options,
      deletedReason: DeletedProjectReasons.ACCOUNT_DELETION,
    })
  )
@@ -244,6 +245,7 @@ async function deleteProject(projectId, options = {}) {
        })
    }

+
    const deleterData = {
      deletedAt: new Date(),
      deleterId:
@@ -286,6 +288,7 @@ async function deleteProject(projectId, options = {}) {
      { projectId, userId: project.owner_ref },
      'successfully deleted project'
    )
+    return { deletedAt: deleterData.deletedAt, deleterId: deleterData.deleterId }
  } catch (err) {
    logger.warn({ err }, 'problem deleting project')
    throw err
@@ -315,7 +318,7 @@ async function undeleteProject(projectId, options = {}) {
  // if we're undeleting, we want the document to show up
  restored.name = await ProjectDetailsHandler.promises.generateUniqueName(
    deletedProject.deleterData.deletedProjectOwnerId,
-    restored.name + ' (Restored)'
+    restored.name + (options.suffix ?? ' (Restored)')
  )
  restored.archived = undefined

@@ -339,6 +342,7 @@ async function undeleteProject(projectId, options = {}) {

  await db.projects.insertOne(restored)
  await DeletedProject.deleteOne({ _id: deletedProject._id }).exec()
+  return restored
 }

 async function expireDeletedProject(projectId) {
@@ -118,6 +118,7 @@ async function duplicate(
    )
    attributes.overleaf = { history: { id: newHistoryId } }
  }
+  attributes.imageName = originalProject.imageName

  // Now create the new project, cleaning it up on failure if necessary
  const newProject = await ProjectCreationHandler.promises.createBlankProject(
@@ -3,7 +3,7 @@ import Path from 'node:path'
 let ProjectEditorHandler

 export default ProjectEditorHandler = {
-  trackChangesAvailable: false,
+  trackChangesAvailable: true,

  buildProjectModelView(
    project,
@@ -29,7 +29,7 @@ export default ProjectEditorHandler = {
      deletedByExternalDataSource: project.deletedByExternalDataSource || false,
      imageName:
        project.imageName != null
-          ? Path.basename(project.imageName)
+          ? project.imageName
          : undefined,
    }

@@ -39,14 +39,13 @@ const ProjectOptionsHandler = {
    if (!imageName || !Array.isArray(settings.allowedImageNames)) {
      return undefined
    }
-    imageName = imageName.toLowerCase()
    const isAllowed = settings.allowedImageNames.find(
      allowed => imageName === allowed.imageName
    )
    if (!isAllowed) {
      throw new OError('invalid imageName', { imageName })
    }
-    return settings.imageRoot + '/' + imageName
+    return imageName
  },

  async setImageName(projectId, imageName) {
@@ -128,6 +127,29 @@ const ProjectOptionsHandler = {
    const update = { referenceFormat: newReferenceFormat }
    return Project.updateOne(conditions, update, {})
  },
+
+  // ─────────────────────────────────────────────────────────────────
+  // LanguageTool settings (project-wide; shared across collaborators).
+  // Unset values mean the client defaults: enabled=true, picky=true,
+  // language='auto' — i.e. picky level is the default selection.
+  // ─────────────────────────────────────────────────────────────────
+  async setLanguageToolEnabled(projectId, enabled) {
+    const conditions = { _id: projectId }
+    const update = { languageToolEnabled: Boolean(enabled) }
+    return Project.updateOne(conditions, update, {})
+  },
+
+  async setLanguageToolPicky(projectId, picky) {
+    const conditions = { _id: projectId }
+    const update = { languageToolPicky: Boolean(picky) }
+    return Project.updateOne(conditions, update, {})
+  },
+
+  async setLanguageToolLanguage(projectId, language) {
+    const conditions = { _id: projectId }
+    const update = { languageToolLanguage: language || 'auto' }
+    return Project.updateOne(conditions, update, {})
+  },
 }

 export default {
@@ -145,5 +167,14 @@ export default {
    ProjectOptionsHandler.setHistoryRangesSupport
  ),
  setReferenceFormat: callbackify(ProjectOptionsHandler.setReferenceFormat),
+  setLanguageToolEnabled: callbackify(
+    ProjectOptionsHandler.setLanguageToolEnabled
+  ),
+  setLanguageToolPicky: callbackify(
+    ProjectOptionsHandler.setLanguageToolPicky
+  ),
+  setLanguageToolLanguage: callbackify(
+    ProjectOptionsHandler.setLanguageToolLanguage
+  ),
  promises: ProjectOptionsHandler,
 }
@@ -69,15 +69,15 @@ const AdminController = {
    let url
    const openSockets = {}
    for (url in http.globalAgent.sockets) {
-      openSockets[`http://${url}`] = http.globalAgent.sockets[url].map(
-        socket => socket._httpMessage.path
-      )
+      openSockets[`http://${url}`] = http.globalAgent.sockets[url].map(socket => {
+        return socket._httpMessage?.path || '(unknown request)'
+      })
    }

    for (url in https.globalAgent.sockets) {
-      openSockets[`https://${url}`] = https.globalAgent.sockets[url].map(
-        socket => socket._httpMessage.path
-      )
+      openSockets[`https://${url}`] = https.globalAgent.sockets[url].map(socket => {
+        return socket._httpMessage?.path || '(unknown request)'
+      })
    }

    const systemMessages =
@@ -5,11 +5,11 @@ import ProjectHelper from '../Project/ProjectHelper.mjs'
 import { expressify } from '@overleaf/promise-utils'
 import { parseReq, z } from '../../infrastructure/Validation.mjs'

-// numeric v1 ids (template id / template version id)
 const numericId = z.string().regex(/^[0-9]+$/)
+const objectId = z.string().regex(/^[a-fA-F0-9]{24}$/)

 const getV1TemplateSchema = z.object({
-  params: z.strictObject({ Template_version_id: numericId }),
+  params: z.strictObject({ Template_version_id: objectId }),
  query: z.object({
    id: numericId,
    templateName: z.string().optional(),
@@ -17,25 +17,27 @@ const getV1TemplateSchema = z.object({
    texImage: z.string().optional(),
    mainFile: z.string().optional(),
    brandVariationId: z.coerce.number().int().positive().optional(),
+    language: z.string().optional(),
  }),
 })

 // Rollout-temporary fallback (pre-refinement schema from main); delete
 // when this route's REQ_VALIDATION_MODE instrumentation is removed.
 const getV1TemplateFallbackSchema = z.object({
-  params: z.object({ Template_version_id: numericId }).passthrough(),
+  params: z.object({ Template_version_id: objectId }).passthrough(),
  query: z.object({ id: numericId }).passthrough(),
 })

 const createProjectFromV1TemplateSchema = z.object({
  body: z.strictObject({
-    templateId: numericId,
+    templateId: objectId,
    templateVersionId: numericId,
    brandVariationId: z.coerce.number().int().positive().optional(),
    compiler: z.string().optional(),
    mainFile: z.string().optional(),
    templateName: z.string().optional(),
    imageName: z.string().optional(),
+    language: z.string().optional(),
  }),
 })

@@ -44,7 +46,7 @@ const createProjectFromV1TemplateSchema = z.object({
 const createProjectFromV1TemplateFallbackSchema = z.object({
  body: z
    .object({
-      templateId: numericId,
+      templateId: objectId,
      templateVersionId: numericId,
    })
    .passthrough(),
@@ -59,14 +61,16 @@ const TemplatesController = {
      fallbackSchema: getV1TemplateFallbackSchema,
    })
    const data = {
-      templateVersionId,
-      templateId: query.id,
+      templateVersionId: query.id,
+      templateId: templateVersionId,
      name: query.templateName,
      compiler: ProjectHelper.compilerFromV1Engine(query.latexEngine),
      imageName: query.texImage,
      mainFile: query.mainFile,
      brandVariationId: query.brandVariationId,
+      language: query.language,
    }
+
    res.render(
      path.resolve(
        import.meta.dirname,
@@ -81,6 +85,9 @@ const TemplatesController = {
      fallbackSchema: createProjectFromV1TemplateFallbackSchema,
    })
    const userId = SessionManager.getLoggedInUserId(req.session)
+
+console.log("BODY = ", body)
+
    const project = await TemplatesManager.promises.createProjectFromV1Template(
      body.brandVariationId,
      body.compiler,
@@ -89,7 +96,8 @@ const TemplatesController = {
      body.templateName,
      body.templateVersionId,
      userId,
-      body.imageName
+      body.imageName,
+      body.language
    )
    delete req.session.templateData
    if (!project) {
@@ -20,6 +20,7 @@ import OError from '@overleaf/o-error'

 const { promises: ProjectRootDocManager } = ProjectRootDocManagerModule
 const { promises: ProjectOptionsHandler } = ProjectOptionsHandlerModule
+const TIMEOUT = 30000  // 30 sec

 const TemplatesManager = {
  async createProjectFromV1Template(
@@ -30,33 +31,33 @@ const TemplatesManager = {
    templateName,
    templateVersionId,
    userId,
-    imageName
+    imageName,
+    spellCheckLanguage
  ) {
    compiler = ProjectOptionsHandler.normalizeCompiler(
      compiler || settings.defaultLatexCompiler
    )
-    imageName = ProjectOptionsHandler.normalizeImageName(
-      imageName || 'wl_texlive:2018.1'
-    )
+    try {
+       imageName = ProjectOptionsHandler.normalizeImageName(imageName)
+    } catch {
+      logger.warn( { templateId, imageName }, 'cannot use the image required by the template, using the default image')
+      imageName = null
+    }

-    const zipUrl = `${settings.apis.v1.url}/api/v1/overleaf/templates/${templateVersionId}`
+    const zipUrl = `${settings.apis.filestore.url}/template/${templateId}/v/${templateVersionId}/zip`
    const zipReq = await fetchStreamWithResponse(zipUrl, {
-      basicAuth: {
-        user: settings.apis.v1.user,
-        password: settings.apis.v1.pass,
-      },
-      signal: AbortSignal.timeout(settings.apis.v1.timeout),
+      signal: AbortSignal.timeout(TIMEOUT),
    })

    const projectName = ProjectDetailsHandler.fixProjectName(templateName)
    const dumpPath = `${settings.path.dumpFolder}/${crypto.randomUUID()}_templates-manager`
    const writeStream = fs.createWriteStream(dumpPath)
+
    try {
      const attributes = {
-        fromV1TemplateId: templateId,
-        fromV1TemplateVersionId: templateVersionId,
        compiler,
        imageName,
+        spellCheckLanguage
      }
      if (brandVariationId) attributes.brandVariationId = brandVariationId

@@ -15,7 +15,7 @@ import {
 } from './ArchiveErrors.mjs'
 import FileTypeManager from './FileTypeManager.mjs'

-const MAX_UNCOMPRESSED_BYTES = 1024 * 1024 * 300 // 300MB
+const MAX_UNCOMPRESSED_BYTES = 6 *  Settings.maxUploadSize // 300MB (by default)

 /**
 * Check if a zip entry's file path is safe and return the destination path.
@@ -29,6 +29,7 @@ function _canHaveNoInitiatorId(operation, info) {
  if (operation === 'must-reset-password-set') return true
  if (operation === 'must-reset-password-unset') return true
  if (operation === 'account-suspension' && info.script) return true
+  if (operation === 'account-suspension-lifted' && info.script) return true
  if (operation === 'release-managed-user' && info.script) return true
 }

@@ -674,4 +674,5 @@ export default {
  expireDeletedUsersAfterDuration: expressify(expireDeletedUsersAfterDuration),
  ensureAffiliationMiddleware: expressify(ensureAffiliationMiddleware),
  ensureAffiliation,
+  doLogout,
 }
@@ -63,7 +63,7 @@ async function deleteUser(userId, options) {
    logger.info({ userId }, 'creating deleted user record')
    await _createDeletedUser(user, options)
    logger.info({ userId }, 'deleting user projects')
-    await ProjectDeleter.promises.deleteUsersProjects(user._id)
+    await ProjectDeleter.promises.deleteUsersProjects(user._id, options)
    if (options.skipEmail) {
      logger.info({ userId }, 'skipping sending deletion email to user')
    } else {
@@ -75,10 +75,8 @@ 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 || {}
@@ -308,6 +306,7 @@ const UserPagesController = {
      title: Settings.nav?.login_support_title || 'login',
      login_support_title: Settings.nav?.login_support_title,
      login_support_text: Settings.nav?.login_support_text,
+      local_login_mask_enable: Settings.enableLocalLoginMask,
      metadata,
    })
  },
@@ -15,10 +15,12 @@ import OError from '@overleaf/o-error'
 const UserRegistrationHandler = {
  _registrationRequestIsValid(body) {
    const invalidEmail = AuthenticationManager.validateEmail(body.email || '')
+    if (invalidEmail) throw new OError('InvalidEmailError')
    const invalidPassword = AuthenticationManager.validatePassword(
      body.password || '',
      body.email
    )
+    if (invalidPassword) throw new OError('InvalidPasswordError')
    return !(invalidEmail || invalidPassword)
  },

@@ -633,6 +633,23 @@ async function suspendUser(userId, auditLog = {}) {
  )
 }

+async function unsuspendUser(userId, auditLog = {}) {
+  const res = await updateUser(
+    { _id: userId, suspended: true },
+    { $set: { suspended: false } }
+  )
+  if (res.matchedCount !== 1) {
+    throw new Errors.NotFoundError('user id not found or not suspended')
+  }
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'account-suspension-lifted',
+    auditLog.initiatorId,
+    auditLog.ip,
+    auditLog.info || {}
+  )
+}
+
 function _securityAlertPrimaryEmailChangedExtraRecipients(
  emailsData,
  oldEmail,
@@ -689,6 +706,7 @@ export default {
  migrateDefaultEmailAddress: callbackify(migrateDefaultEmailAddress),
  updateUser: callbackify(updateUser),
  suspendUser: callbackify(suspendUser),
+  unsuspendUser: callbackify(unsuspendUser),
  promises: {
    addAffiliationForNewUser,
    addEmailAddress,
@@ -702,5 +720,6 @@ export default {
    migrateDefaultEmailAddress,
    updateUser,
    suspendUser,
+    unsuspendUser,
  },
 }
@@ -0,0 +1,706 @@
+import logger from '@overleaf/logger'
+import OError from '@overleaf/o-error'
+import { db } from '../../infrastructure/mongodb.mjs'
+import Mongo from '../Helpers/Mongo.mjs'
+import { callbackify } from 'node:util'
+import UserGetter from './UserGetter.mjs'
+import InstitutionsAPI from '../Institutions/InstitutionsAPI.mjs'
+import Features from '../../infrastructure/Features.mjs'
+import FeaturesUpdater from '../Subscription/FeaturesUpdater.mjs'
+import EmailHandler from '../Email/EmailHandler.mjs'
+import EmailHelper from '../Helpers/EmailHelper.mjs'
+import Errors from '../Errors/Errors.js'
+import UserAuditLogHandler from './UserAuditLogHandler.mjs'
+import AnalyticsManager from '../Analytics/AnalyticsManager.mjs'
+import EmailChangeHelper from '../Analytics/EmailChangeHelper.mjs'
+import SubscriptionLocator from '../Subscription/SubscriptionLocator.mjs'
+import NotificationsBuilder from '../Notifications/NotificationsBuilder.mjs'
+import _ from 'lodash'
+import Modules from '../../infrastructure/Modules.mjs'
+import UserSessionsManager from './UserSessionsManager.mjs'
+import ThirdPartyIdentityManager from './ThirdPartyIdentityManager.mjs'
+import AsyncLocalStorage from '../../infrastructure/AsyncLocalStorage.mjs'
+
+const { normalizeQuery } = Mongo
+
+async function _sendSecurityAlertPrimaryEmailChanged(
+  userId,
+  oldEmail,
+  email,
+  deleteOldEmail
+) {
+  // here
+  // Send email to the following:
+  // - the old primary
+  // - the new primary
+  // - for all other current (confirmed or recently-enough reconfirmed) email addresses, group by institution if we
+  //   have it, or domain if we don’t, and for each group send to the most recently reconfirmed (or confirmed if never
+  //   reconfirmed) address in that group.
+  // See #6101.
+  const emailOptions = {
+    actionDescribed: `the primary email address on your account was changed to ${email}`,
+    action: 'change of primary email address',
+    message: deleteOldEmail
+      ? [
+          `We also removed the previous primary email ${oldEmail} from the account.`,
+        ]
+      : [],
+  }
+
+  async function sendToRecipients(recipients) {
+    // On failure, log the error and carry on so that one email failing does not prevent other emails sending
+    for await (const recipient of recipients) {
+      try {
+        const opts = Object.assign({}, emailOptions, { to: recipient })
+        await EmailHandler.promises.sendEmail('securityAlert', opts)
+      } catch (error) {
+        logger.error(
+          { error, userId },
+          'could not send security alert email when primary email changed'
+        )
+      }
+    }
+  }
+
+  // First, send notification to the old and new primary emails before getting other emails from v1 to ensure that these
+  // are still sent in the event of not being able to reach v1
+  const oldAndNewPrimaryEmails = [oldEmail, email]
+  await sendToRecipients(oldAndNewPrimaryEmails)
+
+  // Next, get extra recipients with affiliation data
+  const emailsData = await UserGetter.promises.getUserFullEmails(userId)
+  const extraRecipients = _securityAlertPrimaryEmailChangedExtraRecipients(
+    emailsData,
+    oldEmail,
+    email
+  )
+
+  await sendToRecipients(extraRecipients)
+}
+
+/**
+ * Add a new email address for the user. Email cannot be already used by this
+ * or any other user
+ */
+async function addEmailAddress(userId, newEmail, affiliationOptions, auditLog) {
+  AsyncLocalStorage.removeItem('userFullEmails')
+  newEmail = EmailHelper.parseEmail(newEmail)
+  if (!newEmail) {
+    throw new Error('invalid email')
+  }
+
+  await UserGetter.promises.ensureUniqueEmailAddress(newEmail)
+
+  AnalyticsManager.recordEventForUserInBackground(
+    userId,
+    'secondary-email-added'
+  )
+
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'add-email',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {
+      ...auditLog.info,
+      newSecondaryEmail: newEmail,
+    }
+  )
+
+  try {
+    await InstitutionsAPI.promises.addAffiliation(
+      userId,
+      newEmail,
+      affiliationOptions
+    )
+  } catch (error) {
+    throw OError.tag(error, 'problem adding affiliation while adding email')
+  }
+
+  const createdAt = new Date()
+  let res
+  try {
+    const reversedHostname = newEmail.split('@')[1].split('').reverse().join('')
+    const update = {
+      $push: {
+        emails: { email: newEmail, createdAt, reversedHostname },
+      },
+    }
+    res = await updateUser(
+      { _id: userId, 'emails.email': { $ne: newEmail } },
+      update
+    )
+  } catch (error) {
+    throw OError.tag(error, 'problem updating users emails')
+  }
+
+  if (res.matchedCount !== 1) {
+    return
+  }
+
+  try {
+    await EmailChangeHelper.registerEmailCreation(userId, newEmail, {
+      createdAt: new Date(),
+      emailCreatedAt: createdAt,
+    })
+  } catch (error) {
+    logger.warn(
+      { error, userId, newEmail },
+      'Error registering email creation with analytics'
+    )
+  }
+}
+
+async function clearSAMLData(userId, auditLog, sendEmail) {
+  const user = await UserGetter.promises.getUser(userId, {
+    email: 1,
+    emails: 1,
+  })
+
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'clear-institution-sso-data',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {}
+  )
+
+  const update = {
+    $unset: {
+      samlIdentifiers: 1,
+      'emails.$[].samlProviderId': 1,
+      'enrollment.sso': 1,
+    },
+  }
+
+  await updateUser(userId, update)
+
+  for (const emailData of user.emails) {
+    await InstitutionsAPI.promises.removeEntitlement(userId, emailData.email)
+  }
+
+  await FeaturesUpdater.promises.refreshFeatures(
+    userId,
+    'clear-institution-sso-data'
+  )
+
+  if (sendEmail) {
+    await EmailHandler.promises.sendEmail('SAMLDataCleared', { to: user.email })
+  }
+}
+
+async function clearThirdPartyIdentifiers(userId, auditLog) {
+  const user = await UserGetter.promises.getUser(userId, {
+    thirdPartyIdentifiers: 1,
+  })
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'clear-third-party-identifiers',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {}
+  )
+  for (const thirdPartyIdentifier of user.thirdPartyIdentifiers || []) {
+    await ThirdPartyIdentityManager.promises.unlink(
+      userId,
+      thirdPartyIdentifier.providerId,
+      auditLog
+    )
+  }
+}
+
+/**
+ * set the default email address by setting the `email` attribute. The email
+ * must be one of the user's multiple emails (`emails` attribute)
+ */
+async function setDefaultEmailAddress(
+  userId,
+  email,
+  allowUnconfirmed,
+  auditLog,
+  sendSecurityAlert,
+  deleteOldEmail = false
+) {
+  AsyncLocalStorage.removeItem('userFullEmails')
+  email = EmailHelper.parseEmail(email)
+  if (email == null) {
+    throw new Error('invalid email')
+  }
+
+  const user = await UserGetter.promises.getUser(userId, {
+    email: 1,
+    emails: 1,
+  })
+  if (!user) {
+    throw new Error('invalid userId')
+  }
+
+  const oldEmail = user.email
+  const userEmail = user.emails.find(e => e.email === email)
+  if (!userEmail) {
+    throw new Error('Default email does not belong to user')
+  }
+  if (!userEmail.confirmedAt && !allowUnconfirmed) {
+    throw new Errors.UnconfirmedEmailError()
+  }
+
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'change-primary-email',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {
+      newPrimaryEmail: email,
+      oldPrimaryEmail: oldEmail,
+    }
+  )
+
+  const query = { _id: userId, 'emails.email': email }
+  const update = { $set: { email, lastPrimaryEmailCheck: new Date() } }
+  const res = await updateUser(query, update)
+
+  // this should not happen
+  if (res.matchedCount !== 1) {
+    throw new Error('email update error')
+  }
+
+  AnalyticsManager.recordEventForUserInBackground(
+    userId,
+    'primary-email-address-updated'
+  )
+
+  try {
+    await EmailChangeHelper.registerEmailUpdate(userId, email, {
+      isPrimary: true,
+      action: 'updated',
+      createdAt: new Date(),
+    })
+  } catch (err) {
+    logger.warn(
+      { err, userId, email },
+      'Error registering email change with analytics'
+    )
+  }
+
+  if (sendSecurityAlert) {
+    // no need to wait, errors are logged and not passed back
+    _sendSecurityAlertPrimaryEmailChanged(
+      userId,
+      oldEmail,
+      email,
+      deleteOldEmail
+    ).catch(err => {
+      logger.error({ err }, 'failed to send security alert email')
+    })
+  }
+
+  try {
+    await Modules.promises.hooks.fire('userEmailChanged', user, email)
+  } catch (err) {
+    logger.error(
+      { err, oldEmail, newEmail: email },
+      'Failed to fire "userEmailChanged" hook'
+    )
+  }
+
+  try {
+    await Modules.promises.hooks.fire(
+      'updateAccountEmailAddress',
+      user._id,
+      email
+    )
+  } catch (error) {
+    // errors are ignored
+  }
+}
+
+/**
+ * Overwrites the primary email address of a user in the database in-place.
+ * This function is only intended for use in scripts to migrate email addresses
+ * where we do not want to trigger all the actions that happen when a user
+ * changes their own email.  It should not be used in any other circumstances.
+ */
+async function migrateDefaultEmailAddress(
+  userId,
+  oldEmail,
+  newEmail,
+  auditLog
+) {
+  oldEmail = EmailHelper.parseEmail(oldEmail)
+  if (oldEmail == null) {
+    throw new Error('invalid old email')
+  }
+  newEmail = EmailHelper.parseEmail(newEmail)
+  if (newEmail == null) {
+    throw new Error('invalid new email')
+  }
+  const reversedHostname = newEmail.split('@')[1].split('').reverse().join('')
+  const query = {
+    _id: userId,
+    email: oldEmail,
+    'emails.email': oldEmail,
+  }
+  const update = {
+    $set: {
+      email: newEmail,
+      'emails.$.email': newEmail,
+      'emails.$.reversedHostname': reversedHostname,
+    },
+  }
+  const result = await updateUser(query, update)
+  if (result.modifiedCount !== 1) {
+    throw new Error('email update error')
+  }
+  // add a user audit log entry for the email change
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'migrate-default-email',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {
+      oldEmail,
+      newEmail,
+      // Add optional extra info
+      ...(auditLog.extraInfo || {}),
+    }
+  )
+}
+
+async function confirmEmail(userId, email, affiliationOptions) {
+  AsyncLocalStorage.removeItem('userFullEmails')
+  // used for initial email confirmation (non-SSO and SSO)
+  // also used for reconfirmation of non-SSO emails
+  const confirmedAt = new Date()
+  email = EmailHelper.parseEmail(email)
+  if (email == null) {
+    throw new Error('invalid email')
+  }
+  logger.debug({ userId, email }, 'confirming user email')
+
+  try {
+    affiliationOptions = affiliationOptions || {}
+    affiliationOptions.confirmedAt = confirmedAt
+    await InstitutionsAPI.promises.addAffiliation(
+      userId,
+      email,
+      affiliationOptions
+    )
+  } catch (error) {
+    throw OError.tag(error, 'problem adding affiliation while confirming email')
+  }
+
+  const query = {
+    _id: userId,
+    'emails.email': email,
+  }
+
+  // only update confirmedAt if it was not previously set
+  const update = {
+    $set: {
+      'emails.$.reconfirmedAt': confirmedAt,
+    },
+    $min: {
+      'emails.$.confirmedAt': confirmedAt,
+    },
+  }
+
+  if (Features.hasFeature('affiliations')) {
+    update.$unset = {
+      'emails.$.affiliationUnchecked': 1,
+    }
+  }
+
+  const res = await updateUser(query, update)
+
+  if (res.matchedCount !== 1) {
+    throw new Errors.NotFoundError('user id and email do no match')
+  }
+  await FeaturesUpdater.promises.refreshFeatures(userId, 'confirm-email')
+
+  try {
+    await EmailChangeHelper.registerEmailUpdate(userId, email, {
+      emailConfirmedAt: confirmedAt,
+      action: 'updated',
+      isPrimary: false,
+    })
+  } catch (error) {
+    logger.warn(
+      { error, userId, email },
+      'Error registering email confirmation with analytics'
+    )
+  }
+
+  try {
+    await maybeCreateRedundantSubscriptionNotification(userId, email)
+  } catch (error) {
+    logger.err(
+      { err: error },
+      'error checking redundant subscription on email confirmation'
+    )
+  }
+}
+
+async function maybeCreateRedundantSubscriptionNotification(userId, email) {
+  const subscription =
+    await SubscriptionLocator.promises.getUserIndividualSubscription(userId)
+  if (!subscription || subscription.groupPlan) {
+    return
+  }
+
+  const affiliations =
+    await InstitutionsAPI.promises.getUserAffiliations(userId)
+  const confirmedAffiliation = affiliations.find(a => a.email === email)
+  if (!confirmedAffiliation || confirmedAffiliation.licence === 'free') {
+    return
+  }
+
+  await NotificationsBuilder.promises
+    .redundantPersonalSubscription(
+      {
+        institutionId: confirmedAffiliation.institution.id,
+        institutionName: confirmedAffiliation.institution.name,
+      },
+      { _id: userId }
+    )
+    .create()
+}
+
+async function removeEmailAddress(
+  userId,
+  email,
+  auditLog,
+  skipParseEmail = false
+) {
+  AsyncLocalStorage.removeItem('userFullEmails')
+  // remove one of the user's email addresses. The email cannot be the user's
+  // default email address
+  if (!skipParseEmail) {
+    email = EmailHelper.parseEmail(email)
+  } else if (skipParseEmail && typeof email !== 'string') {
+    throw new Error('email must be a string')
+  }
+
+  if (!email) {
+    throw new Error('invalid email')
+  }
+
+  const isMainEmail = await UserGetter.promises.getUserByMainEmail(email, {
+    _id: 1,
+  })
+  if (isMainEmail) {
+    throw new Error('cannot remove primary email')
+  }
+
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'remove-email',
+    auditLog.initiatorId,
+    auditLog.ipAddress,
+    {
+      removedEmail: email,
+      // Add optional extra info
+      ...(auditLog.extraInfo || {}),
+    }
+  )
+
+  try {
+    await InstitutionsAPI.promises.removeAffiliation(userId, email)
+  } catch (error) {
+    OError.tag(error, 'problem removing affiliation')
+    throw error
+  }
+
+  const query = { _id: userId, email: { $ne: email } }
+  const update = { $pull: { emails: { email } } }
+
+  let res
+  try {
+    res = await updateUser(query, update)
+  } catch (error) {
+    OError.tag(error, 'problem removing users email')
+    throw error
+  }
+
+  if (res.matchedCount !== 1) {
+    throw new Error('Cannot remove email')
+  }
+
+  try {
+    await EmailChangeHelper.registerEmailDeletion(userId, email, {
+      isPrimary: false,
+      emailDeletedAt: new Date(),
+    })
+  } catch (error) {
+    logger.warn(
+      { error, userId, email },
+      'Error registering email deletion with analytics'
+    )
+  }
+
+  await FeaturesUpdater.promises.refreshFeatures(userId, 'remove-email')
+}
+
+async function addAffiliationForNewUser(
+  userId,
+  email,
+  affiliationOptions = {}
+) {
+  AsyncLocalStorage.removeItem('userFullEmails')
+  await InstitutionsAPI.promises.addAffiliation(
+    userId,
+    email,
+    affiliationOptions
+  )
+  try {
+    await updateUser(
+      { _id: userId, 'emails.email': email },
+      { $unset: { 'emails.$.affiliationUnchecked': 1 } }
+    )
+  } catch (error) {
+    logger.error(
+      OError.tag(
+        error,
+        'could not remove affiliationUnchecked flag for user on create',
+        {
+          userId,
+          email,
+        }
+      )
+    )
+  }
+}
+
+async function updateUser(query, update) {
+  query = normalizeQuery(query)
+  const result = await db.users.updateOne(query, update)
+  return result
+}
+
+/**
+ * DEPRECATED
+ *
+ * Change the user's main email address by adding a new email, switching the
+ * default email and removing the old email.  Prefer manipulating multiple
+ * emails and the default rather than calling this method directly
+ */
+async function changeEmailAddress(userId, newEmail, auditLog) {
+  newEmail = EmailHelper.parseEmail(newEmail)
+  if (newEmail == null) {
+    throw new Error('invalid email')
+  }
+
+  const oldEmail = await UserGetter.promises.getUserEmail(userId)
+  await addEmailAddress(userId, newEmail, {}, auditLog)
+  await setDefaultEmailAddress(userId, newEmail, true, auditLog, true)
+  await removeEmailAddress(userId, oldEmail, auditLog)
+}
+
+/**
+ * @param {string} userId
+ * @param {{initiatorId: string, ip: string}} auditLog
+ * @returns {Promise<void>}
+ */
+async function removeReconfirmFlag(userId, auditLog) {
+  await UserAuditLogHandler.promises.addEntry(
+    userId.toString(),
+    'must-reset-password-unset',
+    auditLog.initiatorId,
+    auditLog.ip
+  )
+  await updateUser(userId.toString(), { $set: { must_reconfirm: false } })
+}
+
+async function suspendUser(userId, auditLog = {}) {
+  const res = await updateUser(
+    { _id: userId, suspended: { $ne: true } },
+    { $set: { suspended: true } }
+  )
+  if (res.matchedCount !== 1) {
+    throw new Errors.NotFoundError('user id not found or already suspended')
+  }
+  await UserAuditLogHandler.promises.addEntry(
+    userId,
+    'account-suspension',
+    auditLog.initiatorId,
+    auditLog.ip,
+    auditLog.info || {}
+  )
+  await UserSessionsManager.promises.removeSessionsFromRedis({ _id: userId })
+  await Modules.promises.hooks.fire(
+    'removeDropbox',
+    userId,
+    'account-suspension'
+  )
+}
+
+function _securityAlertPrimaryEmailChangedExtraRecipients(
+  emailsData,
+  oldEmail,
+  email
+) {
+  // Group by institution if we have it, or domain if we don’t, and for each group send to the most recently
+  // reconfirmed (or confirmed if never reconfirmed) address in that group. We also remove the original and new
+  // primary email addresses because they are emailed separately
+  // See #6101.
+  function sortEmailsByConfirmation(emails) {
+    return emails.sort((e1, e2) => e2.lastConfirmedAt - e1.lastConfirmedAt)
+  }
+
+  const recipients = new Set()
+  const emailsToIgnore = new Set([oldEmail, email])
+
+  // Remove non-confirmed emails
+  const confirmedEmails = emailsData.filter(email => !!email.lastConfirmedAt)
+
+  // Group other emails by institution, separating out those with no institution and grouping them instead by domain.
+  // The keys for each group are not used for anything other than the grouping, so can have a slightly paranoid format
+  // to avoid any potential clash
+  const groupedEmails = _.groupBy(confirmedEmails, emailData => {
+    if (!emailData.affiliation || !emailData.affiliation.institution) {
+      return `domain:${EmailHelper.getDomain(emailData.email)}`
+    }
+    return `institution_id:${emailData.affiliation.institution.id}`
+  })
+
+  // For each group of emails, order the emails by (re-)confirmation date and pick the first
+  for (const emails of Object.values(groupedEmails)) {
+    // Sort by confirmation and pick the first
+    sortEmailsByConfirmation(emails)
+
+    // Ignore original and new primary email addresses
+    const recipient = emails[0].email
+    if (!emailsToIgnore.has(recipient)) {
+      recipients.add(emails[0].email)
+    }
+  }
+
+  return Array.from(recipients)
+}
+
+export default {
+  addAffiliationForNewUser: callbackify(addAffiliationForNewUser),
+  addEmailAddress: callbackify(addEmailAddress),
+  changeEmailAddress: callbackify(changeEmailAddress),
+  clearSAMLData: callbackify(clearSAMLData),
+  confirmEmail: callbackify(confirmEmail),
+  removeEmailAddress: callbackify(removeEmailAddress),
+  removeReconfirmFlag: callbackify(removeReconfirmFlag),
+  setDefaultEmailAddress: callbackify(setDefaultEmailAddress),
+  migrateDefaultEmailAddress: callbackify(migrateDefaultEmailAddress),
+  updateUser: callbackify(updateUser),
+  suspendUser: callbackify(suspendUser),
+  promises: {
+    addAffiliationForNewUser,
+    addEmailAddress,
+    changeEmailAddress,
+    clearSAMLData,
+    clearThirdPartyIdentifiers,
+    confirmEmail,
+    removeEmailAddress,
+    removeReconfirmFlag,
+    setDefaultEmailAddress,
+    migrateDefaultEmailAddress,
+    updateUser,
+    suspendUser,
+  },
+}
@@ -117,9 +117,9 @@ export default async 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()
  })
@@ -419,10 +419,13 @@ export default async function (webRouter, privateApiRouter, publicApiRouter) {
      labsEnabled: Settings.labs && Settings.labs.enable,
      wikiEnabled: Settings.overleaf != null || Settings.proxyLearn,
      templatesEnabled:
-        Settings.overleaf != null || Settings.templates?.user_id != null,
+        Settings.overleaf != null || Boolean(Settings.templates),
      cioWriteKey: Settings.analytics?.cio?.writeKey,
      cioSiteId: Settings.analytics?.cio?.siteId,
      linkedInInsightsPartnerId: Settings.analytics?.linkedIn?.partnerId,
+      githubSyncEnabled: !!Settings.githubSync?.clientID && !!Settings.githubSync?.clientSecret,
+      zoteroEnabled: !!Settings.zotero?.clientKey && !!Settings.zotero?.clientSecret,
+      languageToolAvailable: !!Settings.languageToolURL,
      enablePandocConversions: Settings.enablePandocConversions,
      mixpanelLabsToken:
        Settings.labs?.enable && Settings.analytics?.mixpanel?.labsToken,
@@ -34,6 +34,7 @@ const Features = {
    return (
      (Boolean(Settings.ldap) && Boolean(Settings.ldap.enable)) ||
      (Boolean(Settings.saml) && Boolean(Settings.saml.enable)) ||
+      (Boolean(Settings.oidc) && Boolean(Settings.oidc.enable)) ||
      Boolean(Settings.overleaf)
    )
  },
@@ -51,10 +52,7 @@ const Features = {
      case 'homepage':
        return Boolean(Settings.enableHomepage)
      case 'registration-page':
-        return (
-          !Features.externalAuthenticationSystemUsed() ||
-          Boolean(Settings.overleaf)
-        )
+        return Boolean(Settings.enableRegistrationPage)
      case 'registration':
        return Boolean(Settings.overleaf)
      case 'chat':
@@ -68,7 +66,7 @@ const Features = {
      case 'oauth':
        return Boolean(Settings.oauth)
      case 'templates-server-pro':
-        return Boolean(Settings.templates?.user_id)
+        return Boolean(Settings.templates)
      case 'affiliations':
      case 'analytics':
        return Boolean(_.get(Settings, ['apis', 'v1', 'url']))
@@ -120,6 +120,7 @@ export const db = {
  systemmessages: internalDb.collection('systemmessages'),
  tags: internalDb.collection('tags'),
  teamInvites: internalDb.collection('teamInvites'),
+  templates: internalDb.collection('templates'),
  tokens: internalDb.collection('tokens'),
  userAuditLogEntries: internalDb.collection('userAuditLogEntries'),
  users: internalDb.collection('users'),
@@ -248,6 +248,8 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
    CaptchaMiddleware.canSkipCaptcha
  )

+  await Modules.applyRouter(webRouter, privateApiRouter, publicApiRouter)
+
  webRouter.get('/login', UserPagesController.loginPage)
  AuthenticationController.addEndpointToLoginWhitelist('/login')

@@ -293,6 +295,8 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
    '/read-only/one-time-login'
  )

+  await Modules.applyRouter(webRouter, privateApiRouter, publicApiRouter)
+
  webRouter.get('/logout', UserPagesController.logout)
  webRouter.post('/logout', UserController.logout)

@@ -1308,6 +1312,10 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
    )
  }

+  webRouter.get(['/learn*', '/blog*', '/latex*', '/for/*', '/contact*'], (req, res) => {
+    res.redirect(301, `https://www.overleaf.com${req.originalUrl}`)
+  })
+
  webRouter.get('/unsupported-browser', renderUnsupportedBrowserPage)

  webRouter.get('*', ErrorController.notFound)
@@ -14,6 +14,7 @@ block content
 								.nav-tabs-container
 									ul.nav.nav-tabs.align-left(role='tablist')
 										+bookmarkable-tabset-header('system-messages', 'System Messages', true)
+										+bookmarkable-tabset-header('active-projects', 'Active Projects')
 										+bookmarkable-tabset-header('open-sockets', 'Open Sockets')
 										+bookmarkable-tabset-header('open-close-editor', 'Open/Close Editor')
 										if hasFeature('saas')
@@ -42,6 +43,10 @@ block content
 											input(name='_csrf' type='hidden' value=csrfToken)
 											button.btn.btn-danger(type='submit') Clear all messages

+									.tab-pane(role='tabpanel' id='active-projects')
+										.row-spaced
+											include ../../../modules/admin-tools/app/views/active-projects.pug
+
 									.tab-pane(role='tabpanel' id='open-sockets')
 										.row-spaced
 											ul
@@ -67,7 +67,7 @@ nav.navbar.navbar-default.navbar-main.navbar-expand-lg(
 									+dropdown-menu-link-item(href='/admin') Manage Site
 									+dropdown-menu-link-item(href='/admin/user') Manage Users
 								if canDisplayProjectUrlLookup
-									+dropdown-menu-link-item(href='/admin/project') Project/Object Lookup
+									+dropdown-menu-link-item(href='/admin/project') Manage Projects
 								if canDisplayAdminRedirect
 									+dropdown-menu-link-item(href=settings.adminUrl) Switch to Admin
 								if canDisplaySplitTestMenu
@@ -152,6 +152,18 @@ nav.navbar.navbar-default.navbar-main.navbar-expand-lg(

 					// logged out
 					if !getSessionUser()
+						// templates link
+						if settings.templates
+							+nav-item
+								+nav-link(
+									href="/templates"
+									event-tracking="menu-click"
+									event-tracking-action="clicked"
+									event-tracking-trigger="click"
+									event-tracking-mb="true"
+									event-segmentation={ page: currentUrl, item: 'templates', location: 'top-menu' }
+								) #{translate('templates')}
+
 						// register link
 						if hasFeature('registration-page')
 							+nav-item.primary
@@ -36,7 +36,7 @@ footer.site-footer
 							a(href=item.url class=item.class aria-label=item.label) !{item.text}
 						else
 							| !{item.text}
-		if settings.env === 'server-ce'
+		if settings.env === 'server-ce' && settings.show_unsupport_warning
 			.row
 				.col-12
 					p.copyright-notice
@@ -29,8 +29,10 @@ block content
 		input(type="hidden" name="templateVersionId" value=templateVersionId)
 		input(type="hidden" name="templateName" value=name)
 		input(type="hidden" name="compiler" value=compiler)
-		input(type="hidden" name="imageName" value=imageName)
+		if imageName
+			input(type="hidden" name="imageName" value=imageName)
 		input(type="hidden" name="mainFile" value=mainFile)
+		input(type="hidden" name="language" value=language)
 		if brandVariationId
 			input(type="hidden" name="brandVariationId" value=brandVariationId)
 		input(hidden type="submit")
@@ -2,6 +2,7 @@ extends ../layout-website-redesign

 block vars
 	- isWebsiteRedesign = true
+	- suppressNavbarRight = true

 block content
 	main#main-content.content
@@ -13,37 +14,57 @@ block content
 							h1 !{login_support_title}
 						else
 							h1 #{translate("log_in")} 
-					form(name='loginForm' data-ol-async-form action='/login' method='POST')
-						input(name='_csrf' type='hidden' value=csrfToken)
-						+formMessagesNewStyle
-						+customFormMessageNewStyle('invalid-password-retry-or-reset', 'danger')
-							| !{translate('email_or_password_wrong_try_again_or_reset', {}, [{ name: 'a', attrs: { href: '/user/password/reset', 'aria-describedby': 'resetPasswordDescription' } }])}
-							span.visually-hidden(id='resetPasswordDescription')
-								| #{translate('reset_password_link')}
-						+customFormMessageNewStyle('password-compromised')
-							| !{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
-							label(for='email') #{translate("email")}
-							input#email.form-control(
-								name='email'
-								type='email'
-								required
-								autofocus='true'
-								autocomplete='username'
+					if local_login_mask_enable
+						form(name='loginForm' data-ol-async-form action='/login' method='POST')
+							input(name='_csrf' type='hidden' value=csrfToken)
+							+formMessagesNewStyle
+							+customFormMessageNewStyle('invalid-password-retry-or-reset', 'danger')
+								| !{translate('email_or_password_wrong_try_again_or_reset', {}, [{ name: 'a', attrs: { href: '/user/password/reset', 'aria-describedby': 'resetPasswordDescription' } }])}
+								span.visually-hidden(id='resetPasswordDescription')
+									| #{translate('reset_password_link')}
+							+customFormMessageNewStyle('password-compromised')
+								| !{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
+								label(for='email') #{translate("email")}
+								input#email.form-control(
+									name='email'
+									type=(settings.ldap && settings.ldap.enable) ? 'text' : 'email'
+									required
+									placeholder=(settings.ldap && settings.ldap.enable) ? settings.ldap.placeholder : 'email@example.com'
+									autofocus='true'
+									autocomplete='username'
+								)
+							.form-group
+								label(for='password') #{translate("password")}
+								input#password.form-control(
+									name='password'
+									type='password'
+									autocomplete='current-password'
+									required
+								)
+							.actions
+								button.btn-primary.btn(type='submit' data-ol-disabled-inflight)
+									span(data-ol-inflight='idle') #{translate("login")}
+									span(hidden data-ol-inflight='pending') #{translate("logging_in")}…
+								a.float-end(href='/user/password/reset') #{translate("forgot_your_password")}?
+					if login_support_text
+						hr
+						p.text-center !{login_support_text}
+					if settings.saml && settings.saml.enable
+						.actions(style='margin-top: 30px;')
+							a.button.btn-secondary.btn(
+							href='/saml/login',
+								style="width: 100%;"
+								data-ol-disabled-inflight
 							)
-						.form-group
-							label(for='password') #{translate("password")}
-							input#password.form-control(
-								name='password'
-								type='password'
-								autocomplete='current-password'
-								required
+								span(data-ol-inflight="idle") #{settings.saml.identityServiceName}
+								span(hidden data-ol-inflight="pending") #{translate("logging_in")}…
+					if settings.oidc && settings.oidc.enable
+						.actions(style='margin-top: 30px;')
+							a.button.btn-secondary.btn(
+								href='/oidc/login',
+								style="width: 100%;"
+								data-ol-disabled-inflight
 							)
-						.actions
-							button.btn-primary.btn(type='submit' data-ol-disabled-inflight)
-								span(data-ol-inflight='idle') #{translate("login")}
-								span(hidden data-ol-inflight='pending') #{translate("logging_in")}…
-							a.float-end(href='/user/password/reset') #{translate("forgot_your_password")}?
-						if login_support_text
-							hr
-							p.text-center !{login_support_text}
+								span(data-ol-inflight="idle") #{settings.oidc.identityServiceName}
+								span(hidden data-ol-inflight="pending") #{translate("logging_in")}…
@@ -50,7 +50,7 @@ block content
 						+notification({ariaLive: 'assertive', type: 'error', className: 'mb-3', content: translate(error)})

 					div(data-ol-custom-form-message='no-password-allowed-due-to-sso' hidden)
-						+notification({ariaLive: 'polite', type: 'error', className: 'mb-3', content: translate('you_cant_reset_password_due_to_sso', {}, [{name: 'a', attrs: {href: '/sso-login'}}])})
+						+notification({ariaLive: 'polite', type: 'error', className: 'mb-3', content: translate('you_cant_reset_password_due_to_ldap_or_sso')})
 					input(name='_csrf' type='hidden' value=csrfToken)
 					.form-group.mb-3
 						label.form-label(for='email') #{translate("email")}
@@ -79,6 +79,8 @@ const safeCompilers = ['xelatex', 'pdflatex', 'latex', 'lualatex']

 module.exports = {
  env: 'server-ce',
+  // show the CE "free unsupported software" disclaimer in the footer; set SHOW_UNSUPPORT_WARNING=false to hide it
+  show_unsupport_warning: process.env.SHOW_UNSUPPORT_WARNING !== 'false',

  limits: {
    httpGlobalAgentMaxSockets: 300,
@@ -236,6 +238,9 @@ module.exports = {
    realTime: {
      url: `http://${process.env.REALTIME_HOST || '127.0.0.1'}:3026`,
    },
+    linkedUrlProxy: {
+      url: `http://${process.env.LINKED_URL_PROXY_HOST || '127.0.0.1'}:3066`,
+    },
    notifications: {
      url: `http://${process.env.NOTIFICATIONS_HOST || '127.0.0.1'}:3042`,
    },
@@ -348,7 +353,9 @@ module.exports = {
    process.env.PROJECT_UPLOAD_TIMEOUT || '120000',
    10
  ),
-  maxUploadSize: 50 * 1024 * 1024, // 50 MB
+  maxUploadSize: process.env.MAX_UPLOAD_SIZE
+    ? parseInt(process.env.MAX_UPLOAD_SIZE, 10) * 1024 * 1024
+    : 50 * 1024 * 1024, // 50 MB
  multerOptions: {
    preservePath: process.env.MULTER_PRESERVE_PATH,
  },
@@ -989,7 +996,12 @@ module.exports = {
    //
    // Restart webpack after making changes.
    //
-    createFileModes: [],
+    createFileModes: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/zotero-create-file'
+      ),
+    ],
    devToolbar: [],
    dsNavLibraryLink: [],
    trashPageTabs: [],
@@ -997,12 +1009,37 @@ module.exports = {
    gitBridge: [],
    publishModalDropdownButton: [],
    publishModalToolbarButton: [],
-    tprFileViewInfo: [],
-    tprFileViewRefreshError: [],
-    tprFileViewRefreshButton: [],
-    tprFileViewNotOriginalImporter: [],
+    tprFileViewInfo: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/tpr-file-view-info'
+      ),
+    ],
+    tprFileViewRefreshError: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/tpr-file-view-refresh-error'
+      ),
+    ],
+    tprFileViewRefreshButton: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/tpr-file-view-refresh-button'
+      ),
+    ],
+    tprFileViewNotOriginalImporter: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/tpr-file-view-not-original-importer'
+      ),
+    ],
    contactUsModal: [],
-    sourceEditorExtensions: [],
+    sourceEditorExtensions: [
+      Path.resolve(
+        __dirname,
+        '../modules/languagetool/frontend/js/languagetool-extension'
+      ),
+    ],
    sourceEditorVisualExtensions: [],
    sourceEditorComponents: [],
    pdfLogEntryHeaderActionComponents: [],
@@ -1011,26 +1048,75 @@ module.exports = {
    pdfPreviewPromotions: [],
    diagnosticActions: [],
    sourceEditorCompletionSources: [],
-    sourceEditorSymbolPalette: [],
+    sourceEditorSymbolPalette: [
+      Path.resolve(
+        __dirname,
+        '../modules/symbol-palette/frontend/components/symbol-palette'
+      ),
+    ],
    sourceEditorToolbarStartButtons: [],
    sourceEditorToolbarButtonGroups: [],
    sourceEditorToolbarComponents: [],
    sourceEditorToolbarEndButtons: [],
    rootContextProviders: [],
-    mainEditorLayoutModals: [],
+    mainEditorLayoutModals: [
+      Path.resolve(
+        __dirname,
+        '../modules/reference-picker/frontend/components/reference-picker-controller.tsx'
+      ),
+      Path.resolve(
+        __dirname,
+        '../modules/selected-word-count/frontend/components/selected-word-count-controller.tsx'
+      ),
+    ],
    mainEditorLayoutPanels: [],
-    pythonRunner: [],
+    pythonRunner: [
+      Path.resolve(
+        __dirname,
+        '../modules/python-runner/frontend/js/components/layout/python-editor-split'
+      ),
+    ],
    langFeedbackLinkingWidgets: [],
    labsExperiments: [],
-    integrationLinkingWidgets: [],
-    referenceLinkingWidgets: [],
-    importProjectFromGithubModalWrapper: [],
-    importProjectFromGithubMenu: [],
+    integrationLinkingWidgets: [
+      Path.resolve(
+        __dirname,
+        '../modules/github-sync/frontend/js/components/github-sync-widget.tsx'
+      ),
+    ],
+    referenceLinkingWidgets: [
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/zotero-widget'
+      ),
+    ],
+    importProjectFromGithubModalWrapper: [
+      Path.resolve(
+        __dirname,
+        '../modules/github-sync/frontend/js/components/import-from-github-modal-wrapper.tsx'
+      ),
+    ],
+    importProjectFromGithubMenu: [
+      Path.resolve(
+        __dirname,
+        '../modules/github-sync/frontend/js/components/import-from-github-menu.tsx'
+      ),
+    ],
    editorLeftMenuSync: [],
    editorLeftMenuManageTemplate: [],
-    menubarExtraComponents: [],
+    menubarExtraComponents: [
+      Path.resolve(
+        __dirname,
+        '../modules/template-gallery/frontend/js/features/template/components/menubar-manage-template'
+      ),
+    ],
    insertMenuSections: [],
-    oauth2Server: [],
+    oauth2Server: [
+      Path.resolve(
+        __dirname,
+        '../modules/git-bridge/frontend/js/widget/components/git-integration-widget.tsx'
+      )
+    ],
    managedGroupSubscriptionEnrollmentNotification: [],
    managedGroupEnrollmentInvite: [],
    ssoCertificateInfo: [],
@@ -1043,13 +1129,22 @@ module.exports = {
    rollingBuildsUpdatedAlert: [],
    offlineModeToolbarButtons: [],
    settingsEntries: [],
-    autoCompleteExtensions: [],
+    autoCompleteExtensions: [
+      Path.resolve(
+        __dirname,
+        '../modules/reference-picker/frontend/extensions/reference-picker-keybinding.ts'
+      ),
+    ],
    sectionTitleGenerators: [],
    toastGenerators: [
      Path.resolve(
        __dirname,
        '../frontend/js/features/pdf-preview/components/synctex-toasts'
      ),
+      Path.resolve(
+        __dirname,
+        '../modules/python-runner/frontend/js/components/editor/python/python-output-toasts'
+      ),
    ],
    editorSidebarComponents: [
      Path.resolve(
@@ -1069,12 +1164,36 @@ module.exports = {
        '../modules/full-project-search/frontend/js/components/full-project-search.tsx'
      ),
    ],
-    integrationPanelComponents: [],
+    integrationPanelComponents: [
+      Path.resolve(
+        __dirname,
+        '../modules/github-sync/frontend/js/components/github-integration-card.tsx'
+      ),
+      Path.resolve(
+        __dirname,
+        '../modules/git-bridge/frontend/js/card/components/git-integration-card.tsx'
+      ),
+      Path.resolve(
+        __dirname,
+        '../modules/zotero/frontend/js/components/zotero-integration-card.tsx'
+      ),
+    ],
    referenceSearchSetting: [],
    settingsModalEditorTabSections: [],
-    settingsModalSpellcheckSections: [],
+    settingsModalSpellcheckSections: [
+      Path.resolve(
+        __dirname,
+        '../modules/languagetool/frontend/js/languagetool-section'
+      ),
+    ],
    editorFloatingMenuActions: [],
-    referenceIndices: [],
+    errorLogsComponents: [],
+    referenceIndices: [
+      Path.resolve(
+        __dirname,
+        '../modules/reference-picker/frontend/reference-index/advanced-reference-index.ts'
+      ),
+    ],
    railEntries: [],
    railPopovers: [],
    railActions: [],
@@ -1085,7 +1204,20 @@ module.exports = {
    'history-v1',
    'launchpad',
    'server-ce-scripts',
-    'user-activate',
+    'sandboxed-compiles',
+    'symbol-palette',
+    'reference-picker',
+    'track-changes',
+    'languagetool',
+    'authentication/ldap',
+    'authentication/saml',
+    'authentication/oidc',
+    'admin-tools', // import after authentication
+    'registration-page', // import after authentication
+    'template-gallery',
+    'git-bridge',
+    'github-sync',
+    'zotero',
  ],
  viewIncludes: {},

@@ -1099,7 +1231,6 @@ module.exports = {
      'app/views/project/ide-react': [`img-src 'self' data: blob:`],
    },
  },
-
  unsupportedBrowsers: {
    ie: '<=11',
    safari: '<15',
@@ -1114,6 +1245,41 @@ module.exports = {
  },

  enablePandocConversions: process.env.ENABLE_PANDOC_CONVERSIONS === 'true',
+  // local login form is shown by default; set ENABLE_LOCAL_LOGIN_MASK=false to hide it (e.g. SSO-only login)
+  enableLocalLoginMask: process.env.ENABLE_LOCAL_LOGIN_MASK !== 'false',
+
+  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',
+      },
+    }),
+  },
+
+  splitTestOverrides: {
+    'themed-modals': 'enabled',
+    'overleaf-code': 'enabled',
+    'editor-tabs': 'enabled',
+    'writefull-toolbar-migration': 'enabled',
+    ...(process.env.ENABLE_PANDOC_CONVERSIONS === 'true' ? {
+      'import-docx': 'enabled',
+      'import-markdown': 'enabled',
+      'export-docx': 'enabled',
+      'export-html': 'enabled',
+      'export-markdown': 'enabled',
+    } : {}),
+    ...(process.env.OVERLEAF_HISTORY_RESTORE?.toLowerCase() === 'true' ? {
+      'history-ranges-support': 'enabled',
+      'revert-file': 'enabled',
+      'revert-project': 'enabled',
+    } : {}),
+  },
+
 }

 module.exports.mergeWith = function (overrides) {
@@ -22,18 +22,29 @@
  "a_new_reference_was_added_to_file_from_provider": "",
  "a_new_version_of_the_rolling_texlive_build_released": "",
  "about_to_archive_projects": "",
+  "about_to_delete_accounts": "",
  "about_to_delete_cert": "",
  "about_to_delete_projects": "",
  "about_to_delete_tag": "",
+  "about_to_delete_template": "",
  "about_to_delete_the_following_project": "",
  "about_to_delete_the_following_projects": "",
  "about_to_delete_user_preamble": "",
  "about_to_enable_managed_users": "",
  "about_to_leave_project": "",
  "about_to_leave_projects": "",
+  "about_to_permanently_delete_accounts": "",
+  "about_to_permanently_delete_projects": "",
  "about_to_remove_user_preamble": "",
+  "about_to_resend_activation_email": "",
+  "about_to_restore_accounts": "",
+  "about_to_restore_projects": "",
+  "about_to_resume_accounts": "",
+  "about_to_set_admin_accounts": "",
+  "about_to_suspend_accounts": "",
  "about_to_switch_to_plan_x_for_price_y": "",
  "about_to_trash_projects": "",
+  "about_to_unset_admin_accounts": "",
  "abstract": "",
  "accept_all_cookies": "",
  "accept_and_continue": "",
@@ -61,6 +72,7 @@
  "account_has_been_link_to_institution_account": "",
  "account_has_past_due_invoice_change_plan_warning": "",
  "account_help": "",
+  "account_information": "",
  "account_managed_by_group_administrator": "",
  "account_managed_by_group_teamname": "",
  "account_not_linked_to_dropbox": "",
@@ -68,6 +80,7 @@
  "acct_linked_to_institution_acct_2": "",
  "action_needed": "",
  "actions": "",
+  "activation_link": "",
  "active": "",
  "add": "",
  "add_a_recovery_email_address": "",
@@ -155,6 +168,8 @@
  "all_project_activity_description": "",
  "all_projects": "",
  "all_projects_will_be_transferred_immediately": "",
+  "all_templates": "",
+  "all_users": "",
  "all_these_experiments_are_available_exclusively": "",
  "allocate_license": "",
  "allows_to_search_by_author_title_etc_possible_to_pull_results_directly_from_your_reference_manager_if_connected": "",
@@ -189,6 +204,8 @@
  "are_you_sure_you_want_to_cancel": "",
  "are_you_sure_you_want_to_cancel_add_on": "",
  "as_email": "",
+  "ask_proj_owner_to_add_you_as_github_collaborator": "",
+  "ask_proj_owner_to_export_to_github": "",
  "ask_proj_owner_to_unlink_from_current_github": "",
  "ask_proj_owner_to_upgrade_for_full_history": "",
  "ask_repo_owner_to_reconnect": "",
@@ -201,6 +218,7 @@
  "at_most_x_libraries_can_be_selected_plural": "",
  "attach_image_or_pdf": "",
  "audit_logs": "",
+  "author": "",
  "auto_close_brackets": "",
  "auto_compile": "",
  "auto_complete": "",
@@ -219,6 +237,7 @@
  "back_to_my_projects": "",
  "back_to_pdf": "",
  "back_to_subscription": "",
+  "back_to_user_list": "",
  "back_to_your_projects": "",
  "basic_compile_time": "",
  "basic_compile_timeout_for_small_projects": "",
@@ -275,6 +294,8 @@
  "captions": "",
  "capture": "",
  "careers": "",
+  "categories": "",
+  "category": "",
  "category_arrows": "",
  "category_greek": "",
  "category_misc": "",
@@ -404,6 +425,7 @@
  "contacting_the_sales_team": "",
  "continue": "",
  "continue_github_merge": "",
+  "continue_github_merge": "",
  "continue_to": "",
  "continue_to_checkout": "",
  "continue_using_free_features": "",
@@ -451,6 +473,7 @@
  "cut": "",
  "dark_mode_pdf_preview": "",
  "dark_themes": "",
+  "date": "",
  "date_and_owner": "",
  "date_and_time": "",
  "dealing_with_errors": "",
@@ -460,6 +483,7 @@
  "delete_account": "",
  "delete_account_confirmation_label": "",
  "delete_account_warning_message_3": "",
+  "delete_accounts": "",
  "delete_acct_no_existing_pw": "",
  "delete_and_leave": "",
  "delete_and_leave_projects": "",
@@ -483,6 +507,7 @@
  "delete_sso_config": "",
  "delete_table": "",
  "delete_tag": "",
+  "delete_template": "",
  "delete_token": "",
  "delete_user": "",
  "delete_your_account": "",
@@ -491,6 +516,7 @@
  "deleted_by_id": "",
  "deleted_by_ip": "",
  "deleted_by_on": "",
+  "deleted_projects": "",
  "deleted_references_kept_in_trash_for_30_days": "",
  "deleted_user": "",
  "deleting": "",
@@ -618,6 +644,7 @@
  "edit_sso_configuration": "",
  "edit_tag": "",
  "edit_tag_name": "",
+  "edit_template": "",
  "edit_your_custom_dictionary": "",
  "edited": "",
  "editing": "",
@@ -747,6 +774,8 @@
  "file_tree": "",
  "files_cannot_include_invalid_characters": "",
  "files_selected": "",
+  "filter_projects": "",
+  "filter_users": "",
  "find": "",
  "find_out_how_to_get_the_most_out_of_your_new_subscription": "",
  "find_out_more": "",
@@ -867,6 +896,9 @@
  "github_timeout_error": "",
  "github_too_many_files_error": "",
  "github_validation_check": "",
+  "github_validation_check_auth": "",
+  "github_validation_name_exists": "",
+  "github_validation_name_invalid": "",
  "github_workflow_authorize": "",
  "github_workflow_files_delete_github_repo": "",
  "github_workflow_files_error": "",
@@ -1006,6 +1038,7 @@
  "imported_from_readcube_at_date": "",
  "imported_from_the_output_of_another_project_at_date": "",
  "imported_from_zotero_at_date": "",
+  "imported_from_zotero_at_date_by": "",
  "importing": "",
  "importing_and_merging_changes_in_github": "",
  "in_editor_chat": "",
@@ -1014,6 +1047,7 @@
  "in_order_to_match_institutional_metadata_2": "",
  "in_order_to_match_institutional_metadata_associated": "",
  "inactive": "",
+  "inactive_projects": "",
  "include_caption": "",
  "include_label": "",
  "include_results_from_your_reference_manager": "",
@@ -1134,6 +1168,7 @@
  "last_name": "",
  "last_resort_trouble_shooting_guide": "",
  "last_suggested_fix": "",
+  "last_updated": "",
  "last_updated_date_by_x": "",
  "last_used": "",
  "last_verification_attempt": "",
@@ -1142,6 +1177,8 @@
  "latam_discount_modal_title": "",
  "latex_places_figures_according_to_a_special_algorithm": "",
  "latex_places_tables_according_to_a_special_algorithm": "",
+  "latex_templates": "",
+  "latex_templates_for_journal_articles": "",
  "layout_options": "",
  "learn_more": "",
  "learn_more_about": "",
@@ -1330,12 +1367,14 @@
  "need_to_add_new_primary_before_remove": "",
  "need_to_leave": "",
  "neither_agree_nor_disagree": "",
+  "never": "",
  "new": "",
  "new_compile_domain_notice": "",
  "new_compiles_in_this_project_will_automatically_use_the_newest_version": "",
  "new_file": "",
  "new_folder": "",
  "new_name": "",
+  "new_owner": "",
  "new_password": "",
  "new_project": "",
  "new_subscription_will_be_billed_immediately": "",
@@ -1394,9 +1433,11 @@
  "no_search_results": "",
  "no_selection_select_file": "",
  "no_symbols_found": "",
+  "no_templates_found": "",
  "no_thanks_cancel_now": "",
  "no_trashed_projects": "",
  "no_trashed_references": "",
+  "no_users": "",
  "non_blinking_cursor": "",
  "normal": "",
  "normally_x_price_per_month": "",
@@ -1408,6 +1449,7 @@
  "notification_personal_and_group_subscriptions": "",
  "notification_project_invite_accepted_message": "",
  "notification_project_invite_message": "",
+  "notify_users_about_account_deletion": "",
  "number_of_users": "",
  "numbered_list": "",
  "oauth_orcid_description": "",
@@ -1434,6 +1476,7 @@
  "only_project_owner_can_link_github": "",
  "open_action_menu": "",
  "open_advanced_reference_search": "",
+  "open_as_template": "",
  "open_each_file_in_its_own_tab": "",
  "open_file": "",
  "open_files_in_tabs": "",
@@ -1447,6 +1490,7 @@
  "optional": "",
  "or": "",
  "or_enable_clipboard_access_in_your_browser_settings": "",
+  "organization": "",
  "organization_name": "",
  "organize_tags": "",
  "other": "",
@@ -1464,12 +1508,15 @@
  "overleaf_labs": "",
  "overleaf_learning_center": "",
  "overleaf_logo": "",
+  "overleaf_template_gallery": "",
  "overleafs_functionality_meets_my_needs": "",
  "overview": "",
  "overwrite": "",
  "overwriting_the_original_folder": "",
  "owned_by_x": "",
+  "owned_projects": "",
  "owner": "",
+  "ownership_of_projects_will_be_transferred": "",
  "page_current": "",
  "page_x_of_n": "",
  "pagination_navigation": "",
@@ -1517,8 +1564,11 @@
  "pending_subscription_message": "",
  "per_license": "",
  "per_month": "",
+  "per_page": "",
  "per_year": "",
  "percent_is_the_percentage_of_the_line_width": "",
+  "permanently_delete_accounts": "",
+  "permanently_delete_projects": "",
  "permanently_disables_the_preview": "",
  "personal_library": "",
  "pick_up_where_you_left_off": "",
@@ -1529,6 +1579,7 @@
  "please_ask_the_project_owner_to_upgrade_to_track_changes": "",
  "please_change_primary_to_remove": "",
  "please_compile_pdf_before_download": "",
+  "please_compile_pdf_before_publish_as_template": "",
  "please_confirm_primary_email_or_edit": "",
  "please_confirm_secondary_email_or_edit": "",
  "please_confirm_your_email_before_making_it_default": "",
@@ -1566,8 +1617,10 @@
  "presentation_mode": "",
  "press_shift_space_for_suggestions": "",
  "press_space_to_open_the_ai_assistant": "",
+  "prev": "",
  "preview": "",
  "preview_editor_tabs": "",
+  "previous": "",
  "previous_page": "",
  "previous_reference": "",
  "previous_suggestion": "",
@@ -1593,6 +1646,7 @@
  "project_actions": "",
  "project_approaching_file_limit": "",
  "project_categories_tags": "",
+  "problem_checking_connection_with_provider": "",
  "project_figure_modal": "",
  "project_files_history": "",
  "project_flagged_too_many_compiles": "",
@@ -1642,6 +1696,7 @@
  "publisher_account": "",
  "publishing": "",
  "pull_github_changes_into_sharelatex": "",
+  "purge": "",
  "push_sharelatex_changes_to_github": "",
  "push_to_github_pull_to_overleaf": "",
  "quoted_text": "",
@@ -1706,6 +1761,7 @@
  "reference_managers": "",
  "reference_search": "",
  "reference_search_setting": "",
+  "reference_search_results": "",
  "reference_search_settings": "",
  "reference_search_style": "",
  "reference_sync": "",
@@ -1714,6 +1770,8 @@
  "references_moved_to_trash": "",
  "references_moved_to_trash_plural": "",
  "references_permanently_deleted_after_30_days": "",
+  "references_picker_empty_hint": "",
+  "references_picker_title": "",
  "references_will_be_gone_for_good": "",
  "references_will_be_gone_for_good_plural": "",
  "refresh": "",
@@ -1772,6 +1830,7 @@
  "request_edit_access": "",
  "required_fields_missing": "",
  "resend": "",
+  "resend_activation_email": "",
  "resend_confirmation_code": "",
  "resend_group_invite": "",
  "resend_invite": "",
@@ -1784,6 +1843,8 @@
  "resolve_comment_error_title": "",
  "resolved_comments": "",
  "restore": "",
+  "restore_accounts": "",
+  "restore_projects": "",
  "restore_file": "",
  "restore_file_confirmation_message": "",
  "restore_file_confirmation_title": "",
@@ -1793,6 +1854,8 @@
  "restore_project_to_this_version": "",
  "restore_this_version": "",
  "restoring": "",
+  "resume": "",
+  "resume_account": "",
  "resync_completed": "",
  "resync_message": "",
  "resync_project_history": "",
@@ -1888,6 +1951,7 @@
  "select_all": "",
  "select_all_entries": "",
  "select_all_projects": "",
+  "select_all_users": "",
  "select_an_output_file": "",
  "select_an_output_file_figure_modal": "",
  "select_cells_in_a_single_row_to_merge": "",
@@ -1904,18 +1968,22 @@
  "select_project": "",
  "select_projects": "",
  "select_reference": "",
+  "select_users": "",
  "select_size": "",
  "select_tag": "",
  "select_tax_id_type": "",
  "select_user": "",
  "select_user_role": "",
+  "selected_text_word_count": "",
  "selection_deleted": "",
  "send": "",
  "send_confirmation_code": "",
  "send_message": "",
+  "send_notification_emails_to_users": "",
  "send_request": "",
  "sending": "",
  "sentence_completion": "",
+  "sentences": "",
  "server_error": "",
  "server_pro_license_entitlement_line_1": "",
  "server_pro_license_entitlement_line_2": "",
@@ -1925,6 +1993,8 @@
  "session_expired_redirecting_to_login": "",
  "sessions": "",
  "set_as_main_document": "",
+  "set_admin": "",
+  "set_admin_account": "",
  "set_color": "",
  "set_column_width": "",
  "set_up_single_sign_on": "",
@@ -1971,6 +2041,7 @@
  "sidebar": "",
  "sign_up": "",
  "signed_in_as_email": "",
+  "signed_up": "",
  "simple_search_mode": "",
  "single_sign_on_sso": "",
  "size": "",
@@ -2118,6 +2189,9 @@
  "sure_you_want_to_change_plan": "",
  "sure_you_want_to_delete": "",
  "sure_you_want_to_leave_group": "",
+  "suspend": "",
+  "suspend_account": "",
+  "switch_between_dark_and_light_mode": "",
  "switch_compile_mode_for_faster_draft_compilation": "",
  "switch_to_editor": "",
  "switch_to_pdf": "",
@@ -2162,6 +2236,7 @@
  "tell_the_project_owner_and_ask_them_to_upgrade": "",
  "template": "",
  "template_description": "",
+  "template_gallery": "",
  "template_title_taken_from_project_title": "",
  "templates": "",
  "temporarily_hides_the_preview": "",
@@ -2217,6 +2292,7 @@
  "they_will_retain_ownership_of_projects_currently_owned_by_them_and_collaborators_will_become_read_only": "",
  "they_will_retain_their_existing_account_on_the_free_plan": "",
  "they_wont_be_able_to_log_in_with_sso_they_will_need_to_set_password": "",
+  "this_action_can_be_undone_within_limited_period": "",
  "this_action_cannot_be_reversed": "",
  "this_action_cannot_be_undone": "",
  "this_action_will_also_disable_domain_capture": "",
@@ -2341,6 +2417,7 @@
  "track_changes": "",
  "tracked_change_added": "",
  "tracked_change_deleted": "",
+  "transfer_all_projects_to": "",
  "transfer_management_of_your_account": "",
  "transfer_management_of_your_account_to_x": "",
  "transfer_management_resolve_following_issues": "",
@@ -2352,6 +2429,7 @@
  "trashed": "",
  "trashed_projects": "",
  "trashing_projects_wont_affect_collaborators": "",
+  "trashing_projects_wont_affect_user_collaborators": "",
  "trial_last_day": "",
  "trial_remaining_days": "",
  "tried_to_log_in_with_email": "",
@@ -2361,6 +2439,7 @@
  "try_again": "",
  "try_for_free": "",
  "try_now": "",
+  "try_recompile_project": "",
  "try_recompile_project_or_troubleshoot": "",
  "try_relinking_provider": "",
  "try_to_compile_despite_errors": "",
@@ -2419,6 +2498,8 @@
  "unpausing": "",
  "unpublish": "",
  "unpublishing": "",
+  "unset_admin": "",
+  "unset_admin_account": "",
  "unsubscribe": "",
  "until_then_you_can_still": "",
  "untrash": "",
@@ -2466,6 +2547,17 @@
  "used_latex_response_occasionally": "",
  "used_latex_response_often": "",
  "used_when_referring_to_the_figure_elsewhere_in_the_document": "",
+  "user_activity": "",
+  "user_categories": "",
+  "user_category_admin": "",
+  "user_category_all": "",
+  "user_category_deleted": "",
+  "user_category_inactive": "",
+  "user_category_ldap": "",
+  "user_category_local": "",
+  "user_category_oidc": "",
+  "user_category_saml": "",
+  "user_category_suspended": "",
  "user_deletion_error": "",
  "user_deletion_password_reset_tip": "",
  "user_email_attribute": "",
@@ -2475,6 +2567,7 @@
  "user_management": "",
  "user_personal_access_tokens": "",
  "user_sessions": "",
+  "users_list": "",
  "using_latex": "",
  "using_premium_features": "",
  "using_the_overleaf_editor": "",
@@ -2521,6 +2614,7 @@
  "view_options": "",
  "view_payment_portal": "",
  "view_payment_portal_disclaimer": "",
+  "view_pdf": "",
  "view_trash": "",
  "view_your_invoices": "",
  "viewer": "",
@@ -2621,6 +2715,7 @@
  "you_can_select_or_invite_collaborator_plural": "",
  "you_can_still_get_the_features_you_need_on_our_standard_plan": "",
  "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_currently_have_x_linked_with_your_overleaf_account": "",
@@ -2714,6 +2809,7 @@
  "zoom_out": "",
  "zoom_to": "",
  "zotero": "",
+  "zotero_account_linked_successfully": "",
  "zotero_dynamic_sync_description": "",
  "zotero_groups_loading_error": "",
  "zotero_groups_relink": "",
@@ -2722,6 +2818,7 @@
  "zotero_reference_loading_error": "",
  "zotero_reference_loading_error_expired": "",
  "zotero_reference_loading_error_forbidden": "",
+  "zotero_reference_loading_error_not_linked": "",
  "zotero_sync_changing": "",
  "zotero_sync_description": "",
  "zotero_sync_lost_access": "",
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
David Rotermund	4f213f227e	Grammar LLM container: Replaces the Language Tool container with a local (or remote) LLM plus can optionally use the original languange tools as further support too.	2026-10-28 21:28:57 +00:00
David Rotermund	a99a12887c	Language Tool- #179 : Test file under tools/languagetools_server_compose/lt-test.tex ; picky problem solved; theme problem solved	2026-10-26 11:35:41 +00:00
David Rotermund	3cc6928e50	languagetools compose setup	2026-10-26 10:10:31 +00:00
David Rotermund	9d4ec4ff96	fix: cloning projects failed with zotero- #253	2026-10-25 18:04:09 +00:00
David Rotermund	8e0302e685	Out of the box S3 server (since minio is dead, I use seaweedfs)	2026-10-25 16:36:47 +00:00
David Rotermund	972157f036	Fix user projects export script- #258	2026-10-25 15:40:20 +00:00
David Rotermund	ad9a6ea954	track-changes: read all docs for the review panel Overview and change authors- #262 #262 and https://github.com/ayaka-notes/ayakaleaf-pro/issues/108	2026-10-25 15:26:28 +00:00
David Rotermund	3e223354fc	Added saveli fixes nginx: only expose git-bridge project endpoints under /git/- #260 and git-bridge: reject personal access tokens of suspended users- #261	2026-10-24 17:47:06 +00:00
David Rotermund	9fd8182bd2	made the 6.3.1 nginx.conf modification	2026-10-24 14:47:21 +00:00
David Rotermund	c7eb257a53	Restoring the support images: \n png2pdf: \n Without this cache you need to convert png to pdf manualy or you risk a compile timeout (had this problem yesterday and did the conversion manualy. Compile time reduction was from time out to 3sec.)\n env settings required:\n (mount point INSIDE the container)\n CLSI_CACHE_PATH: /var/lib/overleaf/data/cache \n (Mount point outside of the container i.e. host, based on your compose volume rules)\n SANDBOXED_COMPILES_HOST_DIR_CACHE: points to the same folder outside of the container\n Test parameter:\n PNG2PDF_MIN_FILE_SIZE_BYTES: 1024 \n ENABLE_PNG2PDF_CONVERSIONS: true \n PNG2PDF_IMAGE: sharelatex/png2pdf:2026-06-24 \n\n It acts on slow png conversions and not all. Hence the texlive image needs this detection hook as the creator intended it. I added them to:\n https://github.com/davrot/texlive-full/tree/png2pdf-slow \n It is a modification of the LatexMK file. Without the hook no png files are cached as pdf.\n\n pdftocairo: \n The creater intended that pdf to thumbnail / preview are created by an external container for safety reasons. \n The only action we do a to-thumbnail-conversion is in the template generation. Since we don't want to disapoint the creater, I restored this safety feature.\n env settings required:\n (default: local imagemagick; other options are local pdftocairo and container pdftocairo via pdftocairo-sandbox)\n CONVERTER: pdftocairo-sandbox \n CONVERSION_SANDBOX_IMAGE: sharelatex/pdftocairo:24.02 \n (mount point INSIDE the container)\n CONVERSION_SANDBOX_DIR: /var/lib/overleaf/tmp/conversions \n (Mount point outside of the container i.e. host, based on your compose volume rules)\n CONVERSION_SANDBOX_HOST_DIR: points to the same folder outside of the container\n	2026-10-24 14:30:35 +00:00
David Rotermund	2657eea505	latent bug? services/filestore/install_deps.sh:apt-get install ghostscript imagemagick optipng iproute2 : ghostscript imagemagick were not installed. Required for pdf -> thumbnail conversion. services/filestore/config/settings.defaults.cjs: converter: process.env.CONVERTER \|\| 'imagemagick',	2026-10-24 02:44:21 +00:00
David Rotermund	ab67680290	Adds env parameter SHOW_UNSUPPORT_WARNING (default true) to show the unsupported CE software warning and env parameter ENABLE_LOCAL_LOGIN_MASK(default true) to control visibility of the local login mask on the login page. i.e. SSO may don't need a local login mask.	2026-10-23 20:25:55 +00:00
David Rotermund	23b9fa3a7c	Fix login page: Login and Template button removed	2026-10-23 17:15:37 +00:00
David Rotermund	cb284642c7	Pandoc dockerfile added and makefile adapted	2026-10-23 16:09:03 +00:00
David Rotermund	5b58d2dd25	Initial import from 6.3.1 plus compare tool (unsure about server-ce/nginx/overleaf.conf_new into overleaf.conf.template)	2026-10-23 09:59:44 +00:00
yu-i-i	738bebb743	README.md for v6.3.0-v5.1	2026-09-27 18:25:22 +02:00
yu-i-i	80e3226d64	Enable by default editor tabs and review mode switcher in toolbar	2026-09-27 18:25:22 +02:00
yu-i-i	7601071d18	Python script runner: initial commit - restore upstream code removed by commit `b90a850` - migrate restored code to modules - improve Run / Stop button design	2026-09-27 18:25:05 +02:00
yu-i-i	7bc2c7f2fa	Enable themed modals	2026-09-27 18:11:28 +02:00
hnd0hng	f0ac2f4051	Feat: add word and sentence counts for selected text	2026-09-27 18:11:27 +02:00
yu-i-i	79b145a852	Image for conversion should not depend on TEX_LIVE_DOCKER_IMAGE_ROOT	2026-09-27 18:11:27 +02:00
yu-i-i	e5a7e28291	Remove copyright note and 'Digital Science'	2026-09-27 18:11:27 +02:00
yu-i-i	0e520296e8	Linked URL: fix deps	2026-09-27 18:11:27 +02:00
yu-i-i	dc36597117	Zotero: fix for 6.3.0	2026-09-27 18:11:27 +02:00
yu-i-i	ccc1c57ccd	Github Sync: fix for 6.3.0	2026-09-27 18:11:27 +02:00
yu-i-i	404623dc25	Admin Tools: fix for 6.3.0	2026-09-27 18:11:27 +02:00
Juan Zuloaga	4552eef3f6	OIDC: enable non standard claims in admin check (#230 ) * OIDC: enable non standard claims in admin check * give priority to UserInfo	2026-09-27 18:11:26 +02:00
yu-i-i	8e95ddfec1	Remove parasitic @misc{noauthor_notitle_nodate} entries	2026-09-22 02:41:44 +02:00
yu-i-i	dcb2eb1b80	Sandboxed compiles: fix cannot compile cyrillic	2026-09-22 02:41:44 +02:00
Rudy Ercek	b840b6524c	Fix: zip archive max uncompressed size	2026-09-22 02:41:44 +02:00
yu-i-i	cd516bdc12	Reference picker: fix show existing key as unexistent in Insert mode	2026-09-22 02:41:44 +02:00
yu-i-i	b3a57cf3e2	Update README.md for 6.2.0	2026-09-22 02:41:44 +02:00
yu-i-i	fb567698f6	Add syscalls to seccomp profile, fixes #194	2026-09-22 02:41:44 +02:00
yu-i-i	94f3c564a6	Admin tools: improve Active Projects UI - do not show the project owner, email and connections number columns - add mailto: all active users of a project when clicking the project title - fix error handling	2026-09-22 02:41:44 +02:00
yu-i-i	08bc4c65dc	Fix: hide Git Bridge, GitHub Sync and Zotero UI elements when the corresponding feature is disabled	2026-09-22 02:41:43 +02:00
yu-i-i	07a77cafd9	Reference picker: improve usability - show tags for nonexistent references - click a badge to find the corresponding reference	2026-09-22 02:41:43 +02:00
yu-i-i	f93211fd24	Add variables to enable experimental features: pandoc conversion and editor tabs	2026-09-22 02:41:43 +02:00
yu-i-i	fea291b72e	Registration page: the initial commit	2026-09-22 02:41:43 +02:00
yu-i-i	479c9fce50	Git bridge, Template gallery: remove integration with the old editor code	2026-09-22 02:41:43 +02:00
yu-i-i	590bf506ac	Admin tools: handle bad SMTP configuration error on account creation	2026-09-22 02:41:43 +02:00
yu-i-i	539e155d6b	Admin tools: remove themed pages env var; style admin header - themed pages now is enabled by default upstream - make the header background red on admin manage urers/projects pages - fix minor bug	2026-09-22 02:41:43 +02:00
yu-i-i	bd5507262e	Github Sync: enhance token handling and post-sync indexing - support file-based token cipher - reindex references after sync - fix typo and clean up code	2026-09-22 02:41:43 +02:00
yu-i-i	9afab5ade1	Zotero: improve integration and reference import - use OAuth instead of tokens - add an integration card - improve error handling - add BibLaTeX format support - fix indexing of linked .bib files on creation	2026-09-22 02:41:43 +02:00
yu-i-i	a262362712	Linked URL: adapt for yarn; bump node to 24.14.1	2026-09-22 02:41:42 +02:00
David Rotermund	345bc57e36	Fix admin socket metadata handling and footer HTML rendering in admin-tools	2026-09-22 02:41:42 +02:00
Pierpaolo Vittorini	24e2fdaab5	Admin tools, Authentication: Fix: set analyticsId when creating a new user	2026-09-22 02:41:42 +02:00
yu-i-i	f71de2eacc	Zotero: allow collaborators to refresh files imported from Zotero; show importer's name in the header	2026-09-22 02:41:42 +02:00
yu-i-i	d5e240b4b5	Admin tools: move styles to modules directory; fix form for dark theme	2026-09-22 02:41:42 +02:00
yu-i-i	de2744f834	Github Sync: initial commit	2026-09-22 02:41:42 +02:00
yu-i-i	ac73b428ff	Git integration: use named export for settings page widget remove stray console.log	2026-09-22 02:41:42 +02:00
Synésio Neto	aa40894fb0	Fix a greyed out create file button after the Zotero Integration was merged.	2026-09-22 02:41:42 +02:00
yu-i-i	04b76c7f84	Sandboxed compiles: cwd argument was added to CommandRunner see upstream commit `ce6f9b8`	2026-09-22 02:41:41 +02:00
yu-i-i	fdabfef9b0	Patches handled by yarn	2026-09-22 02:41:41 +02:00
yu-i-i	425594757e	Revert "[clsi] remove locking from docker actions (#32373 )" This reverts commit `d66a856baa`.	2026-09-22 02:41:41 +02:00
yu-i-i	2fd95a172b	Reference picker: normal search instead of fuzzy; overleafying modal	2026-09-22 02:41:41 +02:00
David Rotermund	d0e78d61d9	Reference picker	2026-09-22 02:41:41 +02:00
yu-i-i	30e127603e	Authentication: fix ldap searchAttributes for passport-ldapauth 3.0.1	2026-09-22 02:41:41 +02:00
David Rotermund	22c294fa3a	Zotero Integration (#164 )	2026-09-22 02:41:41 +02:00
David Rotermund	6558c49c82	Logo Tools (#158 ) * Logo Tools * Moved to /tools/logo; Checks dependencies first and stops if they are not there; Added information about 3_remove_branding_from_projectpage.sh in README ; reordered the commands of 1_convert.sh to avoid the logo-horizontal.png problem	2026-09-22 02:41:41 +02:00
yu-i-i	8426f59658	Git Bridge: fix incorrect token creation date display	2026-09-22 02:41:41 +02:00
David Rotermund	5185548301	Admin tools: introduce Activ Projects tab on the Manage Site page - code moved to modules/admin-tools (yu-i-i)	2026-09-22 02:41:41 +02:00
yu-i-i	8fa8b0dd83	Git Bridge: route PAT validation endpoint to correct router	2026-09-22 02:41:40 +02:00
yu-i-i	bce42463b6	Sandboxed compiles: avoid destroying containers of recently accessed projects see upstream commit `a9c4138` here is an appropriate DockerRunner.mjs patch	2026-09-22 02:41:40 +02:00
yu-i-i	36a09efb6a	Admin tools: themed dashboard	2026-09-22 02:41:40 +02:00
Tao Chen	4587d6935f	Git Bridge: support git-bridge configuration via env in nginx - generate overleaf.conf dynamically - support GIT_BRIDGE_HOST and GIT_BRIDGE_PORT - configure client_max_body_size for /git using GIT_BRIDGE_REPOSTORE_MAX_FILE_SIZE	2026-09-22 02:41:40 +02:00
yu-i-i	31f8bec536	Linked URL: bump node to 24.13.0	2026-09-22 02:41:40 +02:00
yu-i-i	dac79ec9eb	Git Bridge: integrations-panel code was moved	2026-09-22 02:41:40 +02:00
yu-i-i	f65fed52b5	Authentication: fix uid ldap login after email parsing was added to rate limiter	2026-09-22 02:41:40 +02:00
yu-i-i	ec41d3c9a2	Sandboxed compiles: convert DockerRunner to ESM	2026-09-22 02:41:40 +02:00
yu-i-i	3ebbb3761c	Update README.md	2026-09-22 02:41:40 +02:00
yu-i-i	43d5d5f535	Sandboxed compiles: add scripts to add/strip repo prefix from texlive images	2026-09-22 02:41:40 +02:00
yu-i-i	033c14449f	Add env variable to enable restoring project/file from history snapshot	2026-09-22 02:41:40 +02:00
yu-i-i	f56514ad7e	Admin tools: minor improvements - enable Projects button in navbar for admin projects page - enable copy of user ID in user info modal - add null check in UserListController (thanks @moschlar)	2026-09-22 02:41:40 +02:00
yu-i-i	285d346eb6	Git Bridge: Add git integration	2026-09-22 02:41:39 +02:00
yu-i-i	b18298c8b0	Sandboxed compiles: set imageName to default if undefined in project	2026-09-22 02:41:39 +02:00
yu-i-i	d018510a33	Authentication: update passport-ldapauth to 3.0.1; fix minor issues	2026-09-22 02:41:39 +02:00
yu-i-i	c1ee595528	Linked URL: prevent SSRF via DNS rebinding; minor fixes	2026-09-22 02:41:39 +02:00
yu-i-i	6ffb19c722	Admin tools: optimize user/project list performance Add frontend pagination Add search debouncing Render modals conditionally Remove unnecessary sorting	2026-09-22 02:41:39 +02:00
yu-i-i	a20c47b454	Update README.md	2026-09-22 02:41:39 +02:00
yu-i-i	ed02401de5	Sandboxed Compiles: pass imageName in Copy project	2026-09-22 02:41:39 +02:00
yu-i-i	da765c2092	Admin tools: fix minor bugs	2026-09-22 02:41:39 +02:00
yu-i-i	bb788215ba	Sandboxed compiles: add arm64 support to clsi seccomp profile	2026-09-22 02:41:38 +02:00
yu-i-i	a0acf2f72a	Sandboxed Compiles: support configurable texlive image root via env var	2026-09-22 02:41:38 +02:00
yu-i-i	46d23c6c8b	Admin Tools: Fix EXTERNAL_AUTH is 'none'	2026-09-22 02:41:38 +02:00
yu-i-i	c554423be7	Admin Tools: Fix sorting	2026-09-22 02:41:38 +02:00
yu-i-i	78e4ccc4c9	Symbol Palette: fix for 6.1.0	2026-09-22 02:41:38 +02:00
yu-i-i	bcddf9b0e7	Track changes: Fix import after upstream converted several files to ESM	2026-09-22 02:41:38 +02:00
yu-i-i	1b6e9fc501	Authentication: Fix import after upstream converted some files to ESM	2026-09-22 02:41:38 +02:00
yu-i-i	b50ef8c754	Admin Tools: Fix for 6.1.0 migraton	2026-09-22 02:41:38 +02:00
Guilhem Poy	97cd11f439	Add support for EMAIL_SMTP_PASS_FILE Small feature to provide the email password from a file rather than directly from the env variable OVERLEAF_EMAIL_SMTP_PASS. Useful when used in conjunction with Docker Compose secrets.	2026-09-22 02:41:38 +02:00
yu-i-i	9f29a11826	Admin Tools: Fix user name fix user name is not updated fix first_name/last_name is undefined	2026-09-22 02:41:38 +02:00
yu-i-i	7a671ab244	Admin Tools: Manage users and Manage projects pages	2026-09-22 02:41:37 +02:00
yu-i-i	6607edb882	Hotfix 5.5.6-ext-3.3	2026-09-22 02:41:37 +02:00
yu-i-i	e2b99a2e34	Linked URL: add sanitize and normalize	2026-09-22 02:41:37 +02:00
yu-i-i	8c011b6a8a	README for extended CE	2026-09-22 02:41:37 +02:00
yu-i-i	d7601aa404	Add service for Linked URL feature	2026-09-22 02:41:37 +02:00
yu-i-i	9c5be38261	Sandboxed compiles: adjust `clsi-profile`	2026-09-22 02:41:37 +02:00
yu-i-i	d59885e4e7	Track changes: Fix import after upstream converted `DocumentUpdaterHandler` and `CollaboratorsGetter` to ESM	2026-09-22 02:41:37 +02:00
yu-i-i	eb16c6680d	Authentication: Fix import after upstream converted `AuthenticationController` to ESM	2026-09-22 02:41:37 +02:00
yu-i-i	a28e6445dd	Authentication: Fix import after upstream converted `PermissionsManager`, `RateLimiterMiddleware`, `UserCreator` and `SAMLIdentityManager` to ESM	2026-09-22 02:41:36 +02:00
yu-i-i	80f7ad1f31	Track changes: Fix import after upstream converted `ChatManager`, `UserInfoManager` and `UserInfoController` to ESM	2026-09-22 02:41:36 +02:00
Rudy ERCEK	f4f0e13630	Add MAX_UPLOAD_SIZE environment variable	2026-09-22 02:41:36 +02:00
yu-i-i	0e54cc56d5	Fix import after upstream converted `AuthorizationMiddleware` to ESM	2026-09-22 02:41:36 +02:00
yu-i-i	886014d466	Track changes: Use `getProjectRanges` introduced in the upstream	2026-09-22 02:41:36 +02:00
yu-i-i	c7af64b81c	Rename @node-saml/node-saml patch for v5.1.0	2026-09-22 02:41:36 +02:00
yu-i-i	89d73ac7a7	Fix imports after upstream converted `UserController` and `CaptchaMiddleware` to ESM	2026-09-22 02:41:36 +02:00
yu-i-i	64529664ca	Fix import after upstream converted `ErrorController` to ESM	2026-09-22 02:41:36 +02:00
yu-i-i	3eca3de988	Bring back `deleteFile` removed upstream	2026-09-22 02:41:36 +02:00
yu-i-i	8f8f8992f0	Symbol palette: ui components were moved to shared folder	2026-09-22 02:41:36 +02:00
yu-i-i	7e2224dd70	Move Sympol Palette code to modules, closes #63	2026-09-22 02:41:36 +02:00
yu-i-i	f60d5db8c2	`passport-saml` was updated to `v5.1.0`	2026-09-22 02:41:35 +02:00
yu-i-i	c83f53d0b6	Fix: always include repository prefix in sandboxed compiles image name	2026-09-22 02:41:35 +02:00
yu-i-i	361b03b44b	Remove LDAP admin check via group search in ldap-passport	2026-09-22 02:41:35 +02:00
yu-i-i	a9bf9f7f63	`toggleSymbolPalette` now in `useEditorPropertiesContext`	2026-09-22 02:41:35 +02:00
yu-i-i	8d05573e96	Set `use-ai` capability to false	2026-09-22 02:41:35 +02:00
yu-i-i	8d6dbd1aab	Track changes: convert to `mjs`	2026-09-22 02:41:35 +02:00
yu-i-i	3f1e136d50	Track changes: use getTrackedChangesUserIds introduced in the mainstream	2026-09-22 02:41:35 +02:00
yu-i-i	9e7209fd31	Remove OVERLEAF_OIDC_DISABLE_JIT_ACCOUNT_CREATION in favor of OVERLEAF_OIDC_ALLOWED_EMAIL_DOMAINS	2026-09-22 02:41:35 +02:00
Synésio Neto	dce0c52f1b	Introduce an environment variable to allow JIT OIDC users creation based on their email address domain.	2026-09-22 02:41:35 +02:00
yu-i-i	40a45e6dc9	Introduce an environment variable to control user creation in OIDC authentication, closes #47	2026-09-22 02:41:35 +02:00
yu-i-i	44c25117d4	Avoid DEP0174 by removing async from callback-based getGroupPolicyForUser	2026-09-22 02:41:35 +02:00
yu-i-i	a4d443f9f3	Fix login page	2026-09-22 02:41:34 +02:00
yu-i-i	0f428c3eb1	Symbol Palette: make close button visible	2026-09-22 02:41:34 +02:00
yu-i-i	119258ea95	Refactor Sandboxed Compiles	2026-09-22 02:41:34 +02:00
yu-i-i	63e1c74a8d	Symbol Palette: improve keyboard input experience	2026-09-22 02:41:34 +02:00
yu-i-i	6487e204e5	Symbol Palette: get rid of @reach/tabs	2026-09-22 02:41:34 +02:00
yu-i-i	8c6109a90d	Add 'poll' to clsi seccomp profile, fixes minted. Thanks, David.	2026-09-22 02:41:34 +02:00
yu-i-i	59b9cc740a	Template Gallery: add support Make Template Gallery optional; rename environment variables Refactor Template Gallery; resolves #38 and #39: - replace free-text license input with a select box - improve visual presentation of modals and enhance keyboard interaction Template Gallery: replace markdown-it with marked Fix template publishing to align with upstream project context changes Template gallery: ui components were moved to shared folder Fix style of Templates button in navbar Template gallery: Fix `OLModal` usage (see upstream commit `19b3834`) Template gallery: Fix import after upstream converted `CompileManager`, `ClsiManager` and `RateLimiterMiddleware` to ESM Template gallery: Fix import after upstream converted `AuthenticationController`, `ProjectGetter`, ProjectLocator` and `DocumentUpdaterHandler` to ESM Template Gallery: migration to 6.1.0 - enable menu for editor redisign - move frontend code to modules Template gallery: add template management authorization middleware - middleware to enforce template access rules - introduce template manager role - fix minor issues Template Gallery: fix for 6.2.0 Template Gallery: fix for 6.3.0 and show language in the details	2026-09-22 02:38:49 +02:00
yu-i-i	870bf7c3a7	Track changes / comments: update backend to support frontend changes	2026-09-18 23:10:17 +02:00
yu-i-i	b102d1e401	Allow EXTERNAL_AUTH to be undefined, fixes #26	2026-09-18 23:09:13 +02:00
yu-i-i	1d8e5fb92e	Symbol palette: switch to 'OL' UI components and apply minor cosmetic changes	2026-09-18 23:09:13 +02:00
yu-i-i	0c8d307575	Make OVERLEAF_OIDC_USER_ID_FIELD support 'email' as a value	2026-09-18 23:09:13 +02:00
yu-i-i	f3e5ca9e26	See upstream commit `42ee56e`	2026-09-18 23:09:13 +02:00
yu-i-i	f793a3965a	Fix glitches in symbol palette after switching to Bootstrap 5	2026-09-18 23:09:13 +02:00
yu-i-i	48c4af7545	Whitelist /oidc/login endpoint, fixes #21	2026-09-18 23:09:12 +02:00
yu-i-i	5e4965e784	Add ENV variables to control SAML signature validation	2026-09-18 23:09:12 +02:00
yu-i-i	51e1c3e08b	Re-export `doLogout` (was removed from exports in commit `b9fb636`).	2026-09-18 23:09:12 +02:00
yu-i-i	f3d4a51e79	Refactor authentication code; add OIDC support	2026-09-18 23:02:41 +02:00
yu-i-i	54440bdb58	Allow adding extra flags to LaTeX compiler through environment variable	2026-09-18 20:56:25 +02:00
yu-i-i	6097d93c90	Enable LDAP and SAML authentication support	2026-09-18 20:48:52 +02:00
yu-i-i	3a8ef14900	Enable Symbol Palette	2026-09-18 20:42:16 +02:00
yu-i-i	79c2579d3b	Allow selecting a TeX Live image for a project	2026-09-18 20:42:00 +02:00
Sam Van den Vonder	e76dc99a6f	Enable Sandboxed Compiles feature	2026-09-18 20:41:44 +02:00
yu-i-i	236f577974	Enable track changes and comments feature	2026-09-18 20:41:26 +02:00
yu-i-i	65ca4000b9	Redirect non-existing links to Overleaf page	2026-09-18 20:41:15 +02:00