Channel named "." cannot be joined

[Gummikavalier]

Description:

Channel called . can be created but it cannot be joined or returned after navigating away from it.

Just a stupid issue we encountered, but nevertheless it is best to report it. It might indicate some other issue with escaping channel names etc.

Steps to reproduce:

1. Create a public channel called . with web client
2. Search for the channel with another user and try to join the channel

Expected behavior:

You can join the channel as usual

Actual behavior:

In the url-bar the channel path shows as /channel/ and not /channel/.

Typing in the correct url does not have any effect, as the address turns into /channel/ again.

Server Setup Information:

• Version of Rocket.Chat Server: 7.1.0
• License Type: Enterprise
• Number of Users: 500+
• Operating System: RHEL8
• Deployment Method: tar
• Number of Running Instances: 4
• DB Replicaset Oplog: Yes
• NodeJS Version: 20.18.0
• MongoDB Version: 6.0

Client Setup Information

• Desktop App or Browser Version: Any browser

[thepiyush-303]

I believe room names containing special characters, such as (.), should not be allowed.

[reetp]

This will be one for the internal team.

I will refer it immediately.

[darshanlahamage]

Yes, the issue is correct. I rechecked it.
we can create this channel, but even admin cannot open it. Other user can leave it but not open it.
The channel . appears in the list, and backend operations like leaving the channel work, suggesting the database recognizes it
Clicking on the channel results in Page not found affecting both admins and users.
Likely cause: a routing issue where . is misinterpreted as a relative path in URLs or a validation gap allowing invalid channel names.

[reetp]

Yes, the issue is correct. I rechecked it.

I know hence:

This will be one for the internal team.
I will refer it immediately.

No further action required.