Red cross for a contact who had a DNS problem or who has migrated of XMPP server - to solve in the client, we need to close the client and reopen

[Neustradamus]

Dear @psi-im team, @psi-plus team, @Ri0n, @Vitozz, @tehnick,

A contact (admin of his XMPP server) had a problem, a red cross for him:

Presence Error: Remote server not found.
A remote server or service specified as part or all of the JID of the intended recipient does not exist.
Server-to-server connection failed: unable to resolve service

Screenshot:

• https://i.ibb.co/g656KcW/psi-red-cross-vcard-status-tab.png

He had a DNS problem and he has solved it but always a red cross in the XMPP client.

The solution is to close the client and start a new time.

After it, there is no problem, no red cross in roster before the contact name.

---

EDIT: New example in 2024:

• https://i.ibb.co/sJ8NHp1/psi-bug-red-cross-2024.png

Presence Error: Remote server timeout.
A remote server or service specified as part or all of the JID of the intended recipient (or required to fulfill a request) could not be contacted within a reasonable amount of time.
Server-to-server connection failed: host-unknown (This host does not serve domain.tld)

Linked to:

• https://github.com/psi-im/psi/issues/445
• https://github.com/psi-im/psi/issues/247
• https://github.com/psi-plus/main/issues/666

[Ri0n]

I don't understand how one should reproduce it. But I guess you are talking about this piece of code

        else if (!index.data(ContactListModel::AuthorizesToSeeStatusRole).toBool() && s == XMPP::Status::Offline)
            s = STATUS_NOAUTH;

This baically means the contact didn't send updated status and we can't do anything here. It's a problem of the other side.

[tehnick]

I don't understand how one should reproduce it.

For example:

1. Launch any xmpp server on localhost.
2. Register new account in it.
3. Add this temporary account to contacts list in your primary account.
4. Stop xmpp server on localhost.
5. Restart xmpp client.
6. You should see this temporary contact with red crosshair icon.
7. Launch xmpp server on localhost.
8. You should still see this temporary contact with red crosshair icon.

Personally I am not interested in this issue and not planning to check algorithm described above.

[Neustradamus]

@Ri0n, @tehnick, @Vitozz: Today, a contact has migrated this XMPP server, I have a red cross and this error:

Presence Error: Remote server not found.
A remote server or service specified as part or all of the JID of the intended recipient does not exist.
Server-to-server connection failed: unable to resolve service

Screenshot:

• https://i.ibb.co/g656KcW/psi-red-cross-vcard-status-tab.png

I confirm that the problem is always here. I can join a MUC Room on this XMPP server.

[Ri0n]

I still think it's not a bug. so let's just close it

[Neustradamus]

@Ri0n: It is a bug, not new... There is no DNS check/refresh in the client.

[Ri0n]

Wrt dns problems on client side it's clearly impossible. İt's cleaned up and resolved again every time.

[Neustradamus]

Example in a screenshot:

• https://i.ibb.co/sJ8NHp1/psi-bug-red-cross-2024.png

[Neustradamus]

@jkarneges: Can you look this JDNS bug?

Thanks in advance.

Linked to:

• https://github.com/psi-im/psi/issues/247
• https://github.com/psi-plus/main/issues/666