Setting the new mod_muc option tombstone_expiry to a positive integer
will make that any room destroyed gets replaced with a room tombstone.
That tombstone cannot be joined, so it blocks accessing the old room JID
until the expiry seconds have passed.
The default value is 0 seconds, so tombstones are not created.
The header consisted of too many unrelated stuff and macros misuse.
Some stuff is moved into scram.hrl and type_compat.hrl.
All macros have been replaced with the corresponding function calls.
TODO: probably type_compat.hrl is not even needed anymore since
we support only Erlang >= OTP 17.5
Now room owners are able to set a preferred language
for the discussions in the room, so other users can
discover rooms based on the language they wish to talk.
TODO: the language format should conform to RFC 5646.
This check should be implemented in 'xmpp' library.
Fixes#2436
The callback is supposed to provide known options and their default
values, as long as the documentation. Passing default values into
get_mod functions is now deprecated: all defaults should be provided
by the Mod:mod_options/1 callback.
Now 'muc#roominfo_contactjid' and 'muc#roominfo_pubsub' fields
are returned within muc#roominfo form. Also, both 'muc#roominfo_pubsub'
and 'muc#roomconfig_pubsub' are now validated.
Behave according to the new rule from XEP-0045, section 7.2.2:
> When a MUC service receives an <x/> tagged join stanza from an
> already-joined client (as identified by the client's full JID),
> the service should assume that the client lost its synchronization,
> and therefore it SHOULD send exactly the same stanzas to the client
> as if it actually just joined the MUC.
When a user has several resources joined to a room using the same
nick attempts to leave the room from a single resource, route
presence-unavailable back to this (and only this) resource.
Fixes#2007
When a presence-error is received from a participant in a MUC, kick
only this particular participant's full JID, leaving other resources
untouched. This will prevent from erroneous kicking all user's resources
in the presence of "multi-session nicks".
Paweł Chmielowski