fix: support multiple file exports in room message export

[ricardogarim]

Proposed changes (including videos or screenshots)

Messages with multiple file attachments were only exporting the first file when using the "Export Room Messages" feature.

The exportRoomMessages function only handled msg.file (deprecated single file property) and ignored msg.files (new array for multiple files).

Issue(s)

• CORE-1626
• feat: Send multiple files into a single message #32703

Steps to test or reproduce

• Enable multiple file uploads: Admin -> Settings -> File Upload -> Maximum amount of files per message.
• Send a message with multiple files attached.
• Go to Room -> kebab menu -> Export Messages -> Send via email as HTML*.

*you'll have to enable email locally - more infos can be found here: #38183

Before the change

• Check the received email/ZIP: only the first attachment is included.

After the change

• Check the received email/ZIP: all attached files are included.

Summary by CodeRabbit

Bug Fixes

• Fixed room message export to correctly handle messages with multiple attached files. The export now properly aggregates and processes all file attachments per message.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[changeset-bot]

🦋 Changeset detected

Latest commit: 8d834ec

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 40 packages

Name	Type
@rocket.chat/meteor	Patch
@rocket.chat/core-typings	Patch
@rocket.chat/rest-typings	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/api-client	Patch
@rocket.chat/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/fuselage-ui-kit	Patch
@rocket.chat/gazzodown	Patch
@rocket.chat/http-router	Patch
@rocket.chat/livechat	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/ui-avatar	Patch
@rocket.chat/ui-client	Patch
@rocket.chat/ui-contexts	Patch
@rocket.chat/ui-voip	Patch
@rocket.chat/web-ui-registration	Patch
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/queue-worker	Patch
@rocket.chat/abac	Patch
@rocket.chat/federation-matrix	Patch
@rocket.chat/license	Patch
@rocket.chat/media-calls	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/models	Patch
@rocket.chat/network-broker	Patch
@rocket.chat/omni-core-ee	Patch
@rocket.chat/mock-providers	Patch
@rocket.chat/ui-video-conf	Patch
@rocket.chat/instance-status	Patch
@rocket.chat/omni-core	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.44%. Comparing base (7daaf58) to head (8d834ec).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #38292   +/-   ##
========================================
  Coverage    70.43%   70.44%           
========================================
  Files         3162     3162           
  Lines       110339   110340    +1     
  Branches     19886    19872   -14     
========================================
+ Hits         77720    77730   +10     
+ Misses       30590    30581    -9     
  Partials      2029     2029           

Flag	Coverage Δ
e2e	60.36% <ø> (+0.04%)	⬆️
e2e-api	47.80% <27.27%> (+0.02%)	⬆️
unit	71.48% <100.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

📦 Docker Image Size Report

➡️ Changes

Service	Current	Baseline	Change	Percent
sum of all images	0B	0B	0B
account-service	0B	0B	0B
authorization-service	0B	0B	0B
ddp-streamer-service	0B	0B	0B
omnichannel-transcript-service	0B	0B	0B
presence-service	0B	0B	0B
queue-worker-service	0B	0B	0B
rocketchat	0B	0B	0B

📊 Historical Trend

---
config:
  theme: "dark"
  xyChart:
    width: 900
    height: 400
---
xychart
  title "Image Size Evolution by Service (Last 30 Days + This PR)"
  x-axis ["11/18 22:53", "11/19 23:02", "11/21 16:49", "11/24 17:34", "11/27 22:32", "11/28 19:05", "12/01 23:01", "12/02 21:57", "12/03 21:00", "12/04 18:17", "12/05 21:56", "12/08 20:15", "12/09 22:17", "12/10 23:26", "12/11 21:56", "12/12 22:45", "12/13 01:34", "12/15 22:31", "12/16 22:18", "12/17 21:04", "12/18 23:12", "12/19 23:27", "12/20 21:03", "12/22 18:54", "12/23 16:16", "12/24 19:38", "12/25 17:51", "12/26 13:18", "12/29 19:01", "12/30 20:52", "02/03 17:39 (PR)"]
  y-axis "Size (GB)" 0 --> 0.5
  line "account-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.00]
  line "authorization-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.00]
  line "ddp-streamer-service" [0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.00]
  line "omnichannel-transcript-service" [0.14, 0.14, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.00]
  line "presence-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.00]
  line "queue-worker-service" [0.14, 0.14, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.00]
  line "rocketchat" [0.35, 0.35, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.00]

Loading

Statistics (last 30 days):

• 📊 Average: 1.5GiB
• ⬇️ Minimum: 1.4GiB
• ⬆️ Maximum: 1.6GiB
• 🎯 Current PR: 0B

ℹ️ About this report

This report compares Docker image sizes from this build against the develop baseline.

• Tag: pr-38292
• Baseline: develop
• Timestamp: 2026-02-03 17:39:02 UTC
• Historical data points: 30

---

Updated: Tue, 03 Feb 2026 17:39:02 GMT

[dionisio-bot]

Looks like this PR is not ready to merge, because of the following issues:

• This PR is targeting the wrong base branch. It should target 8.2.0, but it targets 8.1.0

Please fix the issues and try again

If you have any trouble, please check the PR guidelines

[coderabbitai]

Walkthrough

This PR fixes room message export functionality to handle messages with multiple file attachments. The exportMessageObject function signature is updated to accept an array of files instead of a single file, with backward compatibility maintained for the legacy single-file property in the export process.

Changes

Cohort / File(s)	Summary
Changeset metadata .changeset/quick-schools-hear.md	New changeset entry marking patch version for @rocket.chat/meteor documenting the fix for room message export with multiple files.
Core export logic apps/meteor/server/lib/dataExport/exportRoomMessagesToFile.ts	Updated exportMessageObject to accept messageFiles: FileProp[] instead of single messageFile?: FileProp. Iterates over all files to attach corresponding attachments. In exportRoomMessages, maintains backward compatibility by accepting both msg.files (new) and msg.file (legacy), filtering out thumbnails, and passing complete files array to export function.
Unit tests apps/meteor/tests/unit/server/lib/dataExport/exportRoomMessagesToFile.spec.ts	Updated existing test calls to pass files as arrays. Added two new test cases: one for exporting multiple files with thumbnail filtering, another for fallback behavior when msg.files unavailable (using msg.file).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• RocketChat/Rocket.Chat#38084: Updates server code to handle IMessage.files (multiple-file attachments) in addition to legacy IMessage.file property.

Suggested labels

stat: ready to merge, stat: QA assured

Suggested reviewers

• tassoevan
• pierre-lehnen-rc
• KevLehman

Poem

🐰 Hop, hop, the files now flow,
Multiple attachments steal the show,
Export them all with graceful care,
No messages left without their share! 📎

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main fix: adding support for multiple file exports in room message exports.
Linked Issues check	✅ Passed	The PR implementation fully addresses the CORE-1626 requirement to handle multiple files (msg.files array) and prevent attachment loss during export.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to the room message export functionality: updating exportMessageObject signature, handling multiple files with backward compatibility, adding appropriate tests.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/multi-file-room-export

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[cubic-dev-ai]

No issues found across 3 files

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@apps/meteor/server/lib/dataExport/exportRoomMessagesToFile.ts`:
- Around line 234-239: The current fallback logic for files drops a legacy
msg.file when msg.files exists but is empty; change the selection so that if
msg.files is absent or an empty array you fall back to msg.file (e.g., use
msg.files only when it is a non-empty array, otherwise use [msg.file] if
present) before applying the thumbnail filter and then push to result.uploads
and call exportMessageObject; update the files assignment near the existing
files const and keep using result.uploads.push(...files) and
result.messages.push(exportMessageObject(exportType, messageObject, files)).