afb48414b6
The previous code was using the legacy Group Chat 1.0 (GC1.0) protocol to join [XEP-0045 Multi User Chats][1]. The legacy protocol is described in § 7.2.1 of that document, the current protocol is described in § 7.2.2. The legacy protocol has not been in active use for more than ten years, and servers are fading out support for it because its presence causes issues (see for example the lengthy discussion in [2], particularly the part starting with "A MUC misunderstanding a presence update for a GC1.0 join"). The effect of servers fading out GC1.0 is that jabber.py cannot send messages to rooms on servers which have done that step any more. This commit implements the modern join protocol, restoring functionality. The modern join protocol is, to my knowledge, supported by all XMPP servers which are still in use. Prosody 0.11 is an example of a server implementation which does not support GC1.0 anymore. [1]: https://xmpp.org/extensions/xep-0045.html [2]: https://mail.jabber.org/pipermail/standards/2017-October/033501.html |
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