Large Video (and possibly other types) Uploads Crash RocketChat Server

Description:

Uploading a large file causes RocketChat to crash

Steps to reproduce:

1. In a private chat channel or a room, upload a large video file (or zip etc)
2. After the upload reaches 100%, RocketChat will crash

NOTE: When RocketChat is restarted, the upload will start again, be sure to cancel it.

Expected behavior:

RocketChat should probably have default and administrative control over maximum file sizes (probably overall and by mime type).

Actual behavior:

The docker container stopped. No errors were logged pertaining to this issue.

Server Setup Information:

• Version of Rocket.Chat Server: 3.7.0
• Operating System: linux 3.10.105 (x64) (Synology)
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog: Enabled
• NodeJS Version: 12.18.4
• MongoDB Version: 4.4.1

Client Setup Information

• Desktop App or Browser Version: Edge (current version)
• Operating System: Windows 10

Additional context

I only tried this once as I didn't want to keep knocking our server offline. Basically I was trying to upload a video that was much larger than I thought I was (it was just short under 900MB). I have not isolated what the maximum size is or verified the behavior with large files of other mimetypes.

Relevant logs:

It did not log anything related to this issue.

Before the container restart the previous entry was an exception 3 hours earlier (container restart was at 21:32).

2020-10-07 19:01:12 | stdout | at packages/simple_json-routes.js:98:9
-- | -- | --
2020-10-07 19:01:12 | stdout | at packages/nimble_restivus/lib/route.coffee:59:33
2020-10-07 19:01:12 | stdout | at Route.share.Route.Route._callEndpoint (packages/nimble_restivus/lib/route.coffee:150:32)
2020-10-07 19:01:12 | stdout | at Object._internalRouteActionHandler [as action] (app/api/server/api.js:394:39)
2020-10-07 19:01:12 | stdout | at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)
2020-10-07 19:01:12 | stdout | at app/api/server/api.js:394:82
2020-10-07 19:01:12 | stdout | at Object.post (app/api/server/v1/misc.js:262:26)
2020-10-07 19:01:12 | stdout | at Server.call (packages/ddp-server/livedata_server.js:1607:17)
2020-10-07 19:01:12 | stdout | at Server.apply (packages/ddp-server/livedata_server.js:1638:22)
2020-10-07 19:01:12 | stdout | at Promise.await (/app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:60:12)
2020-10-07 19:01:12 | stdout | => awaited here:

The report names app/api/server/api.js, app/api/server/v1/misc.js, packages/simple_json-routes.js, and packages/nimble_restivus/lib/route.coffee in the available stack trace. Start by reproducing the large upload and tracing the upload-completion path around these entry points. Done means large uploads no longer stop the Docker container and maximum file sizes have clear default and administrative controls.