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More doc-strings
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Mark Haines
parent
c5d1b4986b
commit
47ec693e29
1 changed files with 202 additions and 39 deletions
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@ -317,6 +317,13 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def user_joined_room(self, user, room_id):
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"""Called via the distributor whenever a user joins a room.
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Notifies the new member of the presence of the current members.
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Notifies the current members of the room of the new member's presence.
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Args:
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user(UserID): The user who joined the room.
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room_id(str): The room id the user joined.
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"""
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if self.hs.is_mine(user):
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statuscache = self._get_or_make_usercache(user)
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@ -344,6 +351,7 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def send_invite(self, observer_user, observed_user):
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"""Request the presence of a local or remote user for a local user"""
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if not self.hs.is_mine(observer_user):
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raise SynapseError(400, "User is not hosted on this Home Server")
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@ -378,6 +386,16 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def invite_presence(self, observed_user, observer_user):
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"""Handles a m.presence_invite EDU. A remote or local user has
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requested presence updates for a local user. If the invite is accepted
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then allow the local or remote user to see the presence of the local
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user.
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Args:
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observed_user(UserID): The local user whose presence is requested.
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observer_user(UserID): The remote or local user requesting presence.
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"""
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accept = yield self._should_accept_invite(observed_user, observer_user)
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if accept:
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@ -404,6 +422,14 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def accept_presence(self, observed_user, observer_user):
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"""Handles a m.presence_accept EDU. Mark a presence invite from a
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local or remote user as accepted in a local user's presence list.
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Starts polling for presence updates from the local or remote user.
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Args:
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observed_user(UserID): The user to update in the presence list.
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observer_user(UserID): The owner of the presence list to update.
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"""
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yield self.store.set_presence_list_accepted(
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observer_user.localpart, observed_user.to_string()
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)
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@ -414,6 +440,15 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def deny_presence(self, observed_user, observer_user):
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"""Handle a m.presence_deny EDU. Removes a local or remote user from a
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local user's presence list.
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Args:
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observed_user: The local or remote user to remove from the list.
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observer_user: The local owner of the presence list.
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Returns:
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A Deferred.
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"""
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yield self.store.del_presence_list(
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observer_user.localpart, observed_user.to_string()
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)
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@ -422,6 +457,15 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def drop(self, observed_user, observer_user):
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"""Remove a local or remote user from a local user's presence list and
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unsubscribe the local user from updates that user.
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Args:
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observed_user: The local or remote user to remove from the list.
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observer_user: The local owner of the presence list.
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Returns:
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A Deferred.
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"""
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if not self.hs.is_mine(observer_user):
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raise SynapseError(400, "User is not hosted on this Home Server")
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@ -435,6 +479,16 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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def get_presence_list(self, observer_user, accepted=None):
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"""Get the presence list for a local user. The retured list includes
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the current presence state for each user listed.
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Args:
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observer_user(UserID): The local user whose presence list to fetch.
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accepted(bool or None): If not none then only include users who
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have or have not accepted the presence invite request.
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Returns:
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A Deferred list of presence state events.
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"""
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if not self.hs.is_mine(observer_user):
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raise SynapseError(400, "User is not hosted on this Home Server")
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@ -456,6 +510,23 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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@log_function
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def start_polling_presence(self, user, target_user=None, state=None):
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"""Subscribe a local user to presence updates from a local or remote
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user. If no target_user is supplied then subscribe to all users stored
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in the presence list for the local user.
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Additonally this pushes the current presence state of this user to all
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target_users. That state can be provided directly or will be read from
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the stored state for the local user.
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Also this attempts to notify the local user of the current state of
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any local target users.
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Args:
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user(UserID): The local user that whishes for presence updates.
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target_user(UserID): The local or remote user whose updates are
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wanted.
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state(dict): Optional presence state for the local user.
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"""
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logger.debug("Start polling for presence from %s", user)
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if target_user:
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@ -513,6 +584,11 @@ class PresenceHandler(BaseHandler):
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yield defer.DeferredList(deferreds, consumeErrors=True)
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def _start_polling_local(self, user, target_user):
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"""Subscribe a local user to presence updates for a local user
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Args:
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user(UserId): The local user that wishes for updates.
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target_user(UserId): The local users whose updates are wanted.
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"""
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target_localpart = target_user.localpart
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if target_localpart not in self._local_pushmap:
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@ -521,6 +597,16 @@ class PresenceHandler(BaseHandler):
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self._local_pushmap[target_localpart].add(user)
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def _start_polling_remote(self, user, domain, remoteusers):
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"""Subscribe a local user to presence updates for remote users on a
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given domain.
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Args:
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user(UserID): The local user that wishes for updates.
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domain(str): The remote server the local user wants updates from.
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remoteusers(UserID): The remote users that local user wants to be
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told about.
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Returns:
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A Deferred.
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"""
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to_poll = set()
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for u in remoteusers:
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@ -541,6 +627,16 @@ class PresenceHandler(BaseHandler):
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@log_function
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def stop_polling_presence(self, user, target_user=None):
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"""Unsubscribe a local user from presence updates from a local or
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remote user. If no target user is supplied then unsubscribe the user
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from all presence updates that the user had subscribed to.
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Args:
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user(UserID): The local user that no longer wishes for updates.
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target_user(UserID or None): The user whose updates are no longer
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wanted.
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Returns:
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A Deferred.
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"""
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logger.debug("Stop polling for presence from %s", user)
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if not target_user or self.hs.is_mine(target_user):
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@ -569,6 +665,12 @@ class PresenceHandler(BaseHandler):
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return defer.DeferredList(deferreds, consumeErrors=True)
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def _stop_polling_local(self, user, target_user):
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"""Unsubscribe a local user from presence updates from a local user on
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this server.
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Args:
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user(UserID): The local user that no longer wishes for updates.
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target_user(UserID): The user whose updates are no longer wanted.
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"""
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for localpart in self._local_pushmap.keys():
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if target_user and localpart != target_user.localpart:
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continue
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@ -581,6 +683,16 @@ class PresenceHandler(BaseHandler):
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@log_function
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def _stop_polling_remote(self, user, domain, remoteusers):
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"""Unsubscribe a local user from presence updates from remote users on
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a given domain.
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Args:
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user(UserID): The local user that no longer wishes for updates.
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domain(str): The remote server to unsubscribe from.
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remoteusers([UserID]): The users on that remote server that the
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local user no longer wishes to be updated about.
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Returns:
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A Deferred.
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"""
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to_unpoll = set()
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for u in remoteusers:
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@ -602,6 +714,18 @@ class PresenceHandler(BaseHandler):
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@defer.inlineCallbacks
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@log_function
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def push_presence(self, user, statuscache):
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"""
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Notify local and remote users of a change in presence of a local user.
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Pushes the update to local clients and remote domains that are directly
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subscribed to the presence of the local user.
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Also pushes that update to any local user or remote domain that shares
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a room with the local user.
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Args:
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user(UserID): The local user whose presence was updated.
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statuscache(UserPresenceCache): Cache of the user's presence state
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Returns:
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A Deferred.
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"""
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assert(self.hs.is_mine(user))
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logger.debug("Pushing presence update from %s", user)
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@ -628,45 +752,23 @@ class PresenceHandler(BaseHandler):
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)
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yield self.distributor.fire("user_presence_changed", user, statuscache)
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@defer.inlineCallbacks
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def _push_presence_remote(self, user, destination, state=None):
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if state is None:
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state = yield self.store.get_presence_state(user.localpart)
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del state["mtime"]
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state["presence"] = state.pop("state")
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if user in self._user_cachemap:
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state["last_active"] = (
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self._user_cachemap[user].get_state()["last_active"]
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)
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yield self.distributor.fire(
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"collect_presencelike_data", user, state
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)
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if "last_active" in state:
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state = dict(state)
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state["last_active_ago"] = int(
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self.clock.time_msec() - state.pop("last_active")
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)
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user_state = {
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"user_id": user.to_string(),
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}
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user_state.update(**state)
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yield self.federation.send_edu(
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destination=destination,
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edu_type="m.presence",
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content={
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"push": [
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user_state,
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],
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}
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)
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@defer.inlineCallbacks
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def incoming_presence(self, origin, content):
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"""Handle an incoming m.presence EDU.
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For each presence update in the "push" list update our local cache and
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notify the appropriate local clients. Only clients that share a room
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or are directly subscribed to the presence for a user should be
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notified of the update.
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For each subscription request in the "poll" list start pushing presence
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updates to the remote server.
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For unsubscribe request in the "unpoll" list stop pushing presence
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updates to the remote server.
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Args:
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orgin(str): The source of this m.presence EDU.
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content(dict): The content of this m.presence EDU.
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Returns:
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A Deferred.
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"""
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deferreds = []
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for push in content.get("push", []):
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@ -765,6 +867,22 @@ class PresenceHandler(BaseHandler):
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def push_update_to_local_and_remote(self, observed_user, statuscache,
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users_to_push=[], room_ids=[],
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remote_domains=[]):
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"""Notify local clients and remote servers of a change in the presence
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of a user.
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Args:
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observed_user(UserID): The user to push the presence state for.
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statuscache(UserPresenceCache): The cache for the presence state to
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push.
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users_to_push([UserID]): A list of local and remote users to
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notify.
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room_ids([str]): Notify the local and remote occupants of these
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rooms.
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remote_domains([str]): A list of remote servers to notify in
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addition to those implied by the users_to_push and the
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room_ids.
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Returns:
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A Deferred.
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"""
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localusers, remoteusers = partitionbool(
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users_to_push,
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@ -802,8 +920,8 @@ class PresenceHandler(BaseHandler):
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def push_update_to_clients(self, users_to_push=[], room_ids=[]):
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"""Notify clients of a new presence event.
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Args:
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users_to_push(list): List of users to notify.
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room_ids(list): List of room_ids to notify.
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users_to_push([UserID]): List of users to notify.
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room_ids([str]): List of room_ids to notify.
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"""
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with PreserveLoggingContext():
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self.notifier.on_new_user_event(
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@ -811,6 +929,51 @@ class PresenceHandler(BaseHandler):
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room_ids,
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)
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@defer.inlineCallbacks
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def _push_presence_remote(self, user, destination, state=None):
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"""Push a user's presence to a remote server. If a presence state event
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that event is sent. Otherwise a new state event is constructed from the
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stored presence state.
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The last_active is replaced with last_active_ago in case the wallclock
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time on the remote server is different to the time on this server.
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Sends an EDU to the remote server with the current presence state.
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Args:
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user(UserID): The user to push the presence state for.
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destination(str): The remote server to send state to.
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state(dict): The state to push, or None to use the current stored
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state.
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Returns:
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A Deferred.
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"""
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if state is None:
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state = yield self.store.get_presence_state(user.localpart)
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del state["mtime"]
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state["presence"] = state.pop("state")
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if user in self._user_cachemap:
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state["last_active"] = (
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self._user_cachemap[user].get_state()["last_active"]
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)
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yield self.distributor.fire(
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"collect_presencelike_data", user, state
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)
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if "last_active" in state:
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state = dict(state)
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state["last_active_ago"] = int(
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self.clock.time_msec() - state.pop("last_active")
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)
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user_state = {"user_id": user.to_string(), }
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user_state.update(state)
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yield self.federation.send_edu(
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destination=destination,
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edu_type="m.presence",
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content={"push": [user_state, ], }
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)
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class PresenceEventSource(object):
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def __init__(self, hs):
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