superduper.group#

Handling groups

Module Contents#

Classes#

Bookmarks

This is instantiated once per BaseSession

MUC

A room, a.k.a. a Multi-User Chat.
class superduper.group.Bookmarks(session)#

This is instantiated once per BaseSession

Parameters:

session (slidge.core.session.BaseSession) –

async fill()#

Establish a user’s known groups.

This has to be overridden in plugins with group support and at the minimum, this should await self.by_legacy_id(group_id) for all the groups a user is part of.

Ideally, set the group subject, friendly, number, etc. in this method

Slidge internals will call this on successful BaseSession.login()

async legacy_id_to_jid_username(legacy_id)#

The default implementation calls str() on the legacy_id and escape characters according to XEP-0106.

You can override this class and implement a more subtle logic to raise an XMPPError early

Parameters:

legacy_id (slidge.util.types.LegacyGroupIdType) –

Returns:

async jid_username_to_legacy_id(username)#
Parameters:

username (str) –

Returns:

class superduper.group.MUC(session, legacy_id, jid)#

A room, a.k.a. a Multi-User Chat.

MUC instances are obtained by calling slidge.group.bookmarks.LegacyBookmarks() on the user’s slidge.core.session.BaseSession.

Parameters:
property avatar_id: slidge.util.types.AvatarIdType | None#

The unique ID of this entity’s avatar.

Return type:

Optional[slidge.util.types.AvatarIdType]

property avatar: slidge.util.types.AvatarIdType | None#

This property can be used to set the avatar, but set_avatar() should be preferred because you can provide a unique ID for the avatar for efficient caching. Setting this is OKish in case the avatar type is a URL or a local path that can act as a legacy ID.

Python’s property is abused here to maintain backwards compatibility, but when getting it you actually get the avatar legacy ID.

Return type:

Optional[slidge.util.types.AvatarIdType]

STABLE_ARCHIVE = False#

Because legacy events like reactions, editions, etc. don’t all map to a stanza with a proper legacy ID, slidge usually cannot guarantee the stability of the archive across restarts.

Set this to True if you know what you’re doing, but realistically, this can’t be set to True until archive is permanently stored on disk by slidge.

This is just a flag on archive responses that most clients ignore anyway.

KEEP_BACKFILLED_PARTICIPANTS = False#

Set this to True if the participant list is not full after calling fill_participants(). This is a workaround for networks with huge participant lists which do not map really well the MUCs where all presences are sent on join. It allows to ensure that the participants that last spoke (within the fill_history() method are effectively participants, thus making possible for XMPP clients to fetch their avatars.

async update_info()#

Fetch information about this group from the legacy network

This is awaited on MUC instantiation, and should be overridden to update the attributes of the group chat, like title, subject, number of participants etc.

To take advantage of the slidge avatar cache, you can check the .avatar property to retrieve the “legacy file ID” of the cached avatar. If there is no change, you should not call slidge.core.mixins.avatar.AvatarMixin.set_avatar() or attempt to modify the :attr:.avatar property.

async fill_participants()#

In here, call self.get_participant(), self.get_participant_by_contact(), of self.get_user_participant() to make an initial list of participants.

async backfill(oldest_message_id=None, oldest_message_date=None)#

Override this if the legacy network provide server-side archive. In it, send history messages using self.get_participant().send*, with the archive_only=True kwarg.

You only need to fetch messages older than oldest_message_id.

Parameters:

  • oldest_message_id (Optional[str]) – The oldest message ID already present in the archive

  • oldest_message_date (Optional[datetime.datetime]) – The oldest message date already present in the archive

async get_user_participant(**kwargs)#

Get the participant representing the gateway user

Parameters:

kwargs – additional parameters for the Participant construction (optional)

Returns:

Return type:

slidge.util.types.LegacyParticipantType

async get_participant(nickname, raise_if_not_found=False, fill_first=False, store=True, **kwargs)#

Get a participant by their nickname.

In non-anonymous groups, you probably want to use LegacyMUC.get_participant_by_contact() instead.

Parameters:

  • nickname (str) – Nickname of the participant (used as resource part in the MUC)

  • raise_if_not_found – Raise XMPPError(“item-not-found”) if they are not in the participant list (internal use by slidge, plugins should not need that)

  • fill_first – Ensure LegacyMUC.fill_participants() has been called first (internal use by slidge, plugins should not need that)

  • store – persistently store the user in the list of MUC participants

  • kwargs – additional parameters for the Participant construction (optional)

Returns:

Return type:

slidge.util.types.LegacyParticipantType

get_system_participant()#

Get a pseudo-participant, representing the room itself

Can be useful for events that cannot be mapped to a participant, e.g. anonymous moderation events, or announces from the legacy service :return:

Return type:

slidge.util.types.LegacyParticipantType

async get_participant_by_contact(c, **kwargs)#

Get a non-anonymous participant.

This is what should be used in non-anonymous groups ideally, to ensure that the Contact jid is associated to this participant

Parameters:
Returns:

Return type:

slidge.util.types.LegacyParticipantType

async get_participants()#

Get all known participants of the group, ensure LegacyMUC.fill_participants() has been awaited once before. Plugins should not use that, internal slidge use only. :return:

remove_participant(p)#

This ho :param p: :return:

Parameters:

p (slidge.util.types.LegacyParticipantType) –

async kick_resource(r)#

Kick a XMPP client of the user. (slidge internal use)

Parameters:

r (str) – The resource to kick

async add_to_bookmarks(auto_join=True, invite=False, preserve=True)#

Add the MUC to the user’s XMPP bookmarks (:xep:`0402’)

This requires that slidge has the IQ privileged set correctly on the XMPP server

Parameters:

  • auto_join – whether XMPP clients should automatically join this MUC on startup. In theory, XMPP clients will receive a “push” notification when this is called, and they will join if they are online.

  • invite – send an invitation to join this MUC emanating from the gateway. While this should not be strictly necessary, it can help for clients that do not support XEP-0402, or that have ‘do not honor bookmarks auto-join’ turned on in their settings.

  • preserve – preserve name, auto-join and bookmarks extensions set by the user outside slidge

abstract async admin_set_avatar(data, mime)#

Called when the user tries to set the avatar of the room from an XMPP client.

If the set avatar operation is completed, should return a legacy image unique identifier. In this case the MUC avatar will be immediately updated on the XMPP side.

If data is not None and this method returns None, then we assume that self.set_avatar() will be called elsewhere, eg triggered by a legacy room update event.

Parameters:

  • data (Optional[bytes]) – image data or None if the user meant to remove the avatar

  • mime (Optional[str]) – the mime type of the image. Since this is provided by the XMPP client, there is no guarantee that this is valid or correct.

Returns:

A unique avatar identifier, which will trigger slidge.group.room.LegacyMUC.set_avatar(). Alternatively, None, if LegacyMUC.set_avatar() is meant to be awaited somewhere else.

Return type:

Optional[Union[int, str]]

async set_avatar(a, avatar_unique_id=None, blocking=False, cancel=True)#

Set an avatar for this entity

Parameters:

  • a (Optional[slidge.util.types.AvatarType]) –

  • avatar_unique_id (Optional[slidge.util.types.LegacyFileIdType]) –

  • blocking –

  • cancel –

Return type:

None

async available_emojis(legacy_msg_id=None)#

Override this to restrict the subset of reactions this recipient can handle.

Returns:

A set of emojis or None if any emoji is allowed

Parameters:

legacy_msg_id (Optional[slidge.util.types.LegacyMessageType]) –

Return type:

Optional[set[str]]