[Bug] [PRODUCTION] Cannot create a chat with a user from a different server

[tprudentova]

2.5.9, chat.twake.app, tested on Safari, Firefox

1. Log in as a user of twake.app server
2. Enter a Matrix ID of a user from a different server (staging or linagora.com)
3. Click on the user, try sending a first message
4. Error

https://github.com/user-attachments/assets/1665e0eb-2baa-4f05-9cf1-592695885952

[nqhhdev]

Hi @tprudentova, on prod env I mean not available. One more, this issue related to BE side (like error in image below) so from FE side we're handle error from BE side and display toast message. Thanks !

[tprudentova]

@guimard maybe you can help us with this issue?

[guimard]

I think this is because https://stg.lin-saas.com/.well-known/matrix/server is missing. It should contain:

{
 "m.server": "matrix.stg.lin-saas.com:443"
}

Can someone create this content in main server ?

[tprudentova]

@guimard hi! Sure you can't help with fixing this bug? It happens on production and it would be good to fix it before the release of the public platform (which is menacingly close)

[guimard]

Yes, I'd like to test the proposed way (2 messages ago). Maybe @tk-nguyen can do it ?

[tk-nguyen]

I think this is because https://stg.lin-saas.com/.well-known/matrix/server is missing. It should contain:

{
 "m.server": "matrix.stg.lin-saas.com:443"
}

Can someone create this content in main server ?

This is not the issue, it tested fine on federationtester: https://federationtester.matrix.org/#stg.lin-saas.com and https://federationtester.matrix.org/#linagora.com

[tk-nguyen]

The issue is that on staging we don't allow federation to anywhere except linagora.com and matrix.org, and on production we forgot to configure this.

[tk-nguyen]

Fixed now on production: now it will federate with everything.

[hoangdat]

Worked for my side: prod account create chat with Linagora account.

[guimard]

Thanks !

[hoangdat]

sorry, need reopen it. When linagora account accept invitation, I got the problem @guimard @tk-nguyen

403 error

{"errcode":"M_FORBIDDEN","error":"Federation denied with linagora.com."}

[guimard]

Maybe same issue on linagora.com side ?

[hoangdat]

Maybe same issue on linagora.com side ?

403 error with response

{"errcode":"M_FORBIDDEN","error":"Federation denied with linagora.com."}

[tk-nguyen]

Requests were routed to workers, which were not restarted after configuration changes. After that, it worked properly.

[tprudentova]

https://github.com/user-attachments/assets/ed4736f2-03be-42ee-aea2-74d8cc3445ec

@tk-nguyen The bug appeared again, cannot create chats with external matrix users (the video is matrix.org). Also messages with people from other matrix servers aren't synchronised (see the videos below, the same chat but viewed from linagora.com account and twake.app account)

https://github.com/user-attachments/assets/76a858c1-cc7c-4c08-87c2-72c1d69d728b

https://github.com/user-attachments/assets/8e09d842-c322-4981-ab7e-ac998f5baade

[tk-nguyen]

No, this is because https://twake.app/.well-known/matrix/server is returning 404. Looking into this.

[tk-nguyen]

It should be fixed now?

[tprudentova]

@tk-nguyen yes, thank you!!