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- # -*- coding: utf-8 -*-
- # Copyright 2016 OpenMarket Ltd
- # Copyright 2018 New Vector Ltd
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- import abc
- import logging
- from signedjson.key import decode_verify_key_bytes
- from signedjson.sign import verify_signed_json
- from twisted.internet import defer
- from unpaddedbase64 import decode_base64
- import synapse.types
- from synapse.api.constants import (
- EventTypes, Membership,
- )
- from synapse.api.errors import AuthError, SynapseError, Codes
- from synapse.types import UserID, RoomID
- from synapse.util.async import Linearizer
- from synapse.util.distributor import user_left_room, user_joined_room
- logger = logging.getLogger(__name__)
- id_server_scheme = "https://"
- class RoomMemberHandler(object):
- # TODO(paul): This handler currently contains a messy conflation of
- # low-level API that works on UserID objects and so on, and REST-level
- # API that takes ID strings and returns pagination chunks. These concerns
- # ought to be separated out a lot better.
- __metaclass__ = abc.ABCMeta
- def __init__(self, hs):
- self.hs = hs
- self.store = hs.get_datastore()
- self.auth = hs.get_auth()
- self.state_handler = hs.get_state_handler()
- self.config = hs.config
- self.simple_http_client = hs.get_simple_http_client()
- self.federation_handler = hs.get_handlers().federation_handler
- self.directory_handler = hs.get_handlers().directory_handler
- self.registration_handler = hs.get_handlers().registration_handler
- self.profile_handler = hs.get_profile_handler()
- self.event_creation_hander = hs.get_event_creation_handler()
- self.member_linearizer = Linearizer(name="member")
- self.clock = hs.get_clock()
- self.spam_checker = hs.get_spam_checker()
- @abc.abstractmethod
- def _remote_join(self, requester, remote_room_hosts, room_id, user, content):
- """Try and join a room that this server is not in
- Args:
- requester (Requester)
- remote_room_hosts (list[str]): List of servers that can be used
- to join via.
- room_id (str): Room that we are trying to join
- user (UserID): User who is trying to join
- content (dict): A dict that should be used as the content of the
- join event.
- Returns:
- Deferred
- """
- raise NotImplementedError()
- @abc.abstractmethod
- def _remote_reject_invite(self, remote_room_hosts, room_id, target):
- """Attempt to reject an invite for a room this server is not in. If we
- fail to do so we locally mark the invite as rejected.
- Args:
- requester (Requester)
- remote_room_hosts (list[str]): List of servers to use to try and
- reject invite
- room_id (str)
- target (UserID): The user rejecting the invite
- Returns:
- Deferred[dict]: A dictionary to be returned to the client, may
- include event_id etc, or nothing if we locally rejected
- """
- raise NotImplementedError()
- @abc.abstractmethod
- def get_or_register_3pid_guest(self, requester, medium, address, inviter_user_id):
- """Get a guest access token for a 3PID, creating a guest account if
- one doesn't already exist.
- Args:
- requester (Requester)
- medium (str)
- address (str)
- inviter_user_id (str): The user ID who is trying to invite the
- 3PID
- Returns:
- Deferred[(str, str)]: A 2-tuple of `(user_id, access_token)` of the
- 3PID guest account.
- """
- raise NotImplementedError()
- @abc.abstractmethod
- def _user_joined_room(self, target, room_id):
- """Notifies distributor on master process that the user has joined the
- room.
- Args:
- target (UserID)
- room_id (str)
- Returns:
- Deferred|None
- """
- raise NotImplementedError()
- @abc.abstractmethod
- def _user_left_room(self, target, room_id):
- """Notifies distributor on master process that the user has left the
- room.
- Args:
- target (UserID)
- room_id (str)
- Returns:
- Deferred|None
- """
- raise NotImplementedError()
- @defer.inlineCallbacks
- def _local_membership_update(
- self, requester, target, room_id, membership,
- prev_event_ids,
- txn_id=None,
- ratelimit=True,
- content=None,
- ):
- if content is None:
- content = {}
- content["membership"] = membership
- if requester.is_guest:
- content["kind"] = "guest"
- event, context = yield self.event_creation_hander.create_event(
- requester,
- {
- "type": EventTypes.Member,
- "content": content,
- "room_id": room_id,
- "sender": requester.user.to_string(),
- "state_key": target.to_string(),
- # For backwards compatibility:
- "membership": membership,
- },
- token_id=requester.access_token_id,
- txn_id=txn_id,
- prev_event_ids=prev_event_ids,
- )
- # Check if this event matches the previous membership event for the user.
- duplicate = yield self.event_creation_hander.deduplicate_state_event(
- event, context,
- )
- if duplicate is not None:
- # Discard the new event since this membership change is a no-op.
- defer.returnValue(duplicate)
- yield self.event_creation_hander.handle_new_client_event(
- requester,
- event,
- context,
- extra_users=[target],
- ratelimit=ratelimit,
- )
- prev_member_event_id = context.prev_state_ids.get(
- (EventTypes.Member, target.to_string()),
- None
- )
- if event.membership == Membership.JOIN:
- # Only fire user_joined_room if the user has acutally joined the
- # room. Don't bother if the user is just changing their profile
- # info.
- newly_joined = True
- if prev_member_event_id:
- prev_member_event = yield self.store.get_event(prev_member_event_id)
- newly_joined = prev_member_event.membership != Membership.JOIN
- if newly_joined:
- yield self._user_joined_room(target, room_id)
- elif event.membership == Membership.LEAVE:
- if prev_member_event_id:
- prev_member_event = yield self.store.get_event(prev_member_event_id)
- if prev_member_event.membership == Membership.JOIN:
- yield self._user_left_room(target, room_id)
- defer.returnValue(event)
- @defer.inlineCallbacks
- def update_membership(
- self,
- requester,
- target,
- room_id,
- action,
- txn_id=None,
- remote_room_hosts=None,
- third_party_signed=None,
- ratelimit=True,
- content=None,
- ):
- key = (room_id,)
- with (yield self.member_linearizer.queue(key)):
- result = yield self._update_membership(
- requester,
- target,
- room_id,
- action,
- txn_id=txn_id,
- remote_room_hosts=remote_room_hosts,
- third_party_signed=third_party_signed,
- ratelimit=ratelimit,
- content=content,
- )
- defer.returnValue(result)
- @defer.inlineCallbacks
- def _update_membership(
- self,
- requester,
- target,
- room_id,
- action,
- txn_id=None,
- remote_room_hosts=None,
- third_party_signed=None,
- ratelimit=True,
- content=None,
- ):
- content_specified = bool(content)
- if content is None:
- content = {}
- else:
- # We do a copy here as we potentially change some keys
- # later on.
- content = dict(content)
- effective_membership_state = action
- if action in ["kick", "unban"]:
- effective_membership_state = "leave"
- # if this is a join with a 3pid signature, we may need to turn a 3pid
- # invite into a normal invite before we can handle the join.
- if third_party_signed is not None:
- yield self.federation_handler.exchange_third_party_invite(
- third_party_signed["sender"],
- target.to_string(),
- room_id,
- third_party_signed,
- )
- if not remote_room_hosts:
- remote_room_hosts = []
- if effective_membership_state not in ("leave", "ban",):
- is_blocked = yield self.store.is_room_blocked(room_id)
- if is_blocked:
- raise SynapseError(403, "This room has been blocked on this server")
- if effective_membership_state == "invite":
- block_invite = False
- is_requester_admin = yield self.auth.is_server_admin(
- requester.user,
- )
- if not is_requester_admin:
- if self.config.block_non_admin_invites:
- logger.info(
- "Blocking invite: user is not admin and non-admin "
- "invites disabled"
- )
- block_invite = True
- if not self.spam_checker.user_may_invite(
- requester.user.to_string(), target.to_string(), room_id,
- ):
- logger.info("Blocking invite due to spam checker")
- block_invite = True
- if block_invite:
- raise SynapseError(
- 403, "Invites have been disabled on this server",
- )
- latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
- current_state_ids = yield self.state_handler.get_current_state_ids(
- room_id, latest_event_ids=latest_event_ids,
- )
- old_state_id = current_state_ids.get((EventTypes.Member, target.to_string()))
- if old_state_id:
- old_state = yield self.store.get_event(old_state_id, allow_none=True)
- old_membership = old_state.content.get("membership") if old_state else None
- if action == "unban" and old_membership != "ban":
- raise SynapseError(
- 403,
- "Cannot unban user who was not banned"
- " (membership=%s)" % old_membership,
- errcode=Codes.BAD_STATE
- )
- if old_membership == "ban" and action != "unban":
- raise SynapseError(
- 403,
- "Cannot %s user who was banned" % (action,),
- errcode=Codes.BAD_STATE
- )
- if old_state:
- same_content = content == old_state.content
- same_membership = old_membership == effective_membership_state
- same_sender = requester.user.to_string() == old_state.sender
- if same_sender and same_membership and same_content:
- defer.returnValue(old_state)
- is_host_in_room = yield self._is_host_in_room(current_state_ids)
- if effective_membership_state == Membership.JOIN:
- if requester.is_guest:
- guest_can_join = yield self._can_guest_join(current_state_ids)
- if not guest_can_join:
- # This should be an auth check, but guests are a local concept,
- # so don't really fit into the general auth process.
- raise AuthError(403, "Guest access not allowed")
- if not is_host_in_room:
- inviter = yield self._get_inviter(target.to_string(), room_id)
- if inviter and not self.hs.is_mine(inviter):
- remote_room_hosts.append(inviter.domain)
- content["membership"] = Membership.JOIN
- profile = self.profile_handler
- if not content_specified:
- content["displayname"] = yield profile.get_displayname(target)
- content["avatar_url"] = yield profile.get_avatar_url(target)
- if requester.is_guest:
- content["kind"] = "guest"
- ret = yield self._remote_join(
- requester, remote_room_hosts, room_id, target, content
- )
- defer.returnValue(ret)
- elif effective_membership_state == Membership.LEAVE:
- if not is_host_in_room:
- # perhaps we've been invited
- inviter = yield self._get_inviter(target.to_string(), room_id)
- if not inviter:
- raise SynapseError(404, "Not a known room")
- if self.hs.is_mine(inviter):
- # the inviter was on our server, but has now left. Carry on
- # with the normal rejection codepath.
- #
- # This is a bit of a hack, because the room might still be
- # active on other servers.
- pass
- else:
- # send the rejection to the inviter's HS.
- remote_room_hosts = remote_room_hosts + [inviter.domain]
- res = yield self._remote_reject_invite(
- requester, remote_room_hosts, room_id, target,
- )
- defer.returnValue(res)
- res = yield self._local_membership_update(
- requester=requester,
- target=target,
- room_id=room_id,
- membership=effective_membership_state,
- txn_id=txn_id,
- ratelimit=ratelimit,
- prev_event_ids=latest_event_ids,
- content=content,
- )
- defer.returnValue(res)
- @defer.inlineCallbacks
- def send_membership_event(
- self,
- requester,
- event,
- context,
- remote_room_hosts=None,
- ratelimit=True,
- ):
- """
- Change the membership status of a user in a room.
- Args:
- requester (Requester): The local user who requested the membership
- event. If None, certain checks, like whether this homeserver can
- act as the sender, will be skipped.
- event (SynapseEvent): The membership event.
- context: The context of the event.
- is_guest (bool): Whether the sender is a guest.
- room_hosts ([str]): Homeservers which are likely to already be in
- the room, and could be danced with in order to join this
- homeserver for the first time.
- ratelimit (bool): Whether to rate limit this request.
- Raises:
- SynapseError if there was a problem changing the membership.
- """
- remote_room_hosts = remote_room_hosts or []
- target_user = UserID.from_string(event.state_key)
- room_id = event.room_id
- if requester is not None:
- sender = UserID.from_string(event.sender)
- assert sender == requester.user, (
- "Sender (%s) must be same as requester (%s)" %
- (sender, requester.user)
- )
- assert self.hs.is_mine(sender), "Sender must be our own: %s" % (sender,)
- else:
- requester = synapse.types.create_requester(target_user)
- prev_event = yield self.event_creation_hander.deduplicate_state_event(
- event, context,
- )
- if prev_event is not None:
- return
- if event.membership == Membership.JOIN:
- if requester.is_guest:
- guest_can_join = yield self._can_guest_join(context.prev_state_ids)
- if not guest_can_join:
- # This should be an auth check, but guests are a local concept,
- # so don't really fit into the general auth process.
- raise AuthError(403, "Guest access not allowed")
- if event.membership not in (Membership.LEAVE, Membership.BAN):
- is_blocked = yield self.store.is_room_blocked(room_id)
- if is_blocked:
- raise SynapseError(403, "This room has been blocked on this server")
- yield self.event_creation_hander.handle_new_client_event(
- requester,
- event,
- context,
- extra_users=[target_user],
- ratelimit=ratelimit,
- )
- prev_member_event_id = context.prev_state_ids.get(
- (EventTypes.Member, event.state_key),
- None
- )
- if event.membership == Membership.JOIN:
- # Only fire user_joined_room if the user has acutally joined the
- # room. Don't bother if the user is just changing their profile
- # info.
- newly_joined = True
- if prev_member_event_id:
- prev_member_event = yield self.store.get_event(prev_member_event_id)
- newly_joined = prev_member_event.membership != Membership.JOIN
- if newly_joined:
- yield self._user_joined_room(target_user, room_id)
- elif event.membership == Membership.LEAVE:
- if prev_member_event_id:
- prev_member_event = yield self.store.get_event(prev_member_event_id)
- if prev_member_event.membership == Membership.JOIN:
- yield self._user_left_room(target_user, room_id)
- @defer.inlineCallbacks
- def _can_guest_join(self, current_state_ids):
- """
- Returns whether a guest can join a room based on its current state.
- """
- guest_access_id = current_state_ids.get((EventTypes.GuestAccess, ""), None)
- if not guest_access_id:
- defer.returnValue(False)
- guest_access = yield self.store.get_event(guest_access_id)
- defer.returnValue(
- guest_access
- and guest_access.content
- and "guest_access" in guest_access.content
- and guest_access.content["guest_access"] == "can_join"
- )
- @defer.inlineCallbacks
- def lookup_room_alias(self, room_alias):
- """
- Get the room ID associated with a room alias.
- Args:
- room_alias (RoomAlias): The alias to look up.
- Returns:
- A tuple of:
- The room ID as a RoomID object.
- Hosts likely to be participating in the room ([str]).
- Raises:
- SynapseError if room alias could not be found.
- """
- directory_handler = self.directory_handler
- mapping = yield directory_handler.get_association(room_alias)
- if not mapping:
- raise SynapseError(404, "No such room alias")
- room_id = mapping["room_id"]
- servers = mapping["servers"]
- defer.returnValue((RoomID.from_string(room_id), servers))
- @defer.inlineCallbacks
- def _get_inviter(self, user_id, room_id):
- invite = yield self.store.get_invite_for_user_in_room(
- user_id=user_id,
- room_id=room_id,
- )
- if invite:
- defer.returnValue(UserID.from_string(invite.sender))
- @defer.inlineCallbacks
- def do_3pid_invite(
- self,
- room_id,
- inviter,
- medium,
- address,
- id_server,
- requester,
- txn_id
- ):
- if self.config.block_non_admin_invites:
- is_requester_admin = yield self.auth.is_server_admin(
- requester.user,
- )
- if not is_requester_admin:
- raise SynapseError(
- 403, "Invites have been disabled on this server",
- Codes.FORBIDDEN,
- )
- invitee = yield self._lookup_3pid(
- id_server, medium, address
- )
- if invitee:
- yield self.update_membership(
- requester,
- UserID.from_string(invitee),
- room_id,
- "invite",
- txn_id=txn_id,
- )
- else:
- yield self._make_and_store_3pid_invite(
- requester,
- id_server,
- medium,
- address,
- room_id,
- inviter,
- txn_id=txn_id
- )
- @defer.inlineCallbacks
- def _lookup_3pid(self, id_server, medium, address):
- """Looks up a 3pid in the passed identity server.
- Args:
- id_server (str): The server name (including port, if required)
- of the identity server to use.
- medium (str): The type of the third party identifier (e.g. "email").
- address (str): The third party identifier (e.g. "foo@example.com").
- Returns:
- str: the matrix ID of the 3pid, or None if it is not recognized.
- """
- try:
- data = yield self.simple_http_client.get_json(
- "%s%s/_matrix/identity/api/v1/lookup" % (id_server_scheme, id_server,),
- {
- "medium": medium,
- "address": address,
- }
- )
- if "mxid" in data:
- if "signatures" not in data:
- raise AuthError(401, "No signatures on 3pid binding")
- yield self._verify_any_signature(data, id_server)
- defer.returnValue(data["mxid"])
- except IOError as e:
- logger.warn("Error from identity server lookup: %s" % (e,))
- defer.returnValue(None)
- @defer.inlineCallbacks
- def _verify_any_signature(self, data, server_hostname):
- if server_hostname not in data["signatures"]:
- raise AuthError(401, "No signature from server %s" % (server_hostname,))
- for key_name, signature in data["signatures"][server_hostname].items():
- key_data = yield self.simple_http_client.get_json(
- "%s%s/_matrix/identity/api/v1/pubkey/%s" %
- (id_server_scheme, server_hostname, key_name,),
- )
- if "public_key" not in key_data:
- raise AuthError(401, "No public key named %s from %s" %
- (key_name, server_hostname,))
- verify_signed_json(
- data,
- server_hostname,
- decode_verify_key_bytes(key_name, decode_base64(key_data["public_key"]))
- )
- return
- @defer.inlineCallbacks
- def _make_and_store_3pid_invite(
- self,
- requester,
- id_server,
- medium,
- address,
- room_id,
- user,
- txn_id
- ):
- room_state = yield self.state_handler.get_current_state(room_id)
- inviter_display_name = ""
- inviter_avatar_url = ""
- member_event = room_state.get((EventTypes.Member, user.to_string()))
- if member_event:
- inviter_display_name = member_event.content.get("displayname", "")
- inviter_avatar_url = member_event.content.get("avatar_url", "")
- canonical_room_alias = ""
- canonical_alias_event = room_state.get((EventTypes.CanonicalAlias, ""))
- if canonical_alias_event:
- canonical_room_alias = canonical_alias_event.content.get("alias", "")
- room_name = ""
- room_name_event = room_state.get((EventTypes.Name, ""))
- if room_name_event:
- room_name = room_name_event.content.get("name", "")
- room_join_rules = ""
- join_rules_event = room_state.get((EventTypes.JoinRules, ""))
- if join_rules_event:
- room_join_rules = join_rules_event.content.get("join_rule", "")
- room_avatar_url = ""
- room_avatar_event = room_state.get((EventTypes.RoomAvatar, ""))
- if room_avatar_event:
- room_avatar_url = room_avatar_event.content.get("url", "")
- token, public_keys, fallback_public_key, display_name = (
- yield self._ask_id_server_for_third_party_invite(
- requester=requester,
- id_server=id_server,
- medium=medium,
- address=address,
- room_id=room_id,
- inviter_user_id=user.to_string(),
- room_alias=canonical_room_alias,
- room_avatar_url=room_avatar_url,
- room_join_rules=room_join_rules,
- room_name=room_name,
- inviter_display_name=inviter_display_name,
- inviter_avatar_url=inviter_avatar_url
- )
- )
- yield self.event_creation_hander.create_and_send_nonmember_event(
- requester,
- {
- "type": EventTypes.ThirdPartyInvite,
- "content": {
- "display_name": display_name,
- "public_keys": public_keys,
- # For backwards compatibility:
- "key_validity_url": fallback_public_key["key_validity_url"],
- "public_key": fallback_public_key["public_key"],
- },
- "room_id": room_id,
- "sender": user.to_string(),
- "state_key": token,
- },
- txn_id=txn_id,
- )
- @defer.inlineCallbacks
- def _ask_id_server_for_third_party_invite(
- self,
- requester,
- id_server,
- medium,
- address,
- room_id,
- inviter_user_id,
- room_alias,
- room_avatar_url,
- room_join_rules,
- room_name,
- inviter_display_name,
- inviter_avatar_url
- ):
- """
- Asks an identity server for a third party invite.
- Args:
- requester (Requester)
- id_server (str): hostname + optional port for the identity server.
- medium (str): The literal string "email".
- address (str): The third party address being invited.
- room_id (str): The ID of the room to which the user is invited.
- inviter_user_id (str): The user ID of the inviter.
- room_alias (str): An alias for the room, for cosmetic notifications.
- room_avatar_url (str): The URL of the room's avatar, for cosmetic
- notifications.
- room_join_rules (str): The join rules of the email (e.g. "public").
- room_name (str): The m.room.name of the room.
- inviter_display_name (str): The current display name of the
- inviter.
- inviter_avatar_url (str): The URL of the inviter's avatar.
- Returns:
- A deferred tuple containing:
- token (str): The token which must be signed to prove authenticity.
- public_keys ([{"public_key": str, "key_validity_url": str}]):
- public_key is a base64-encoded ed25519 public key.
- fallback_public_key: One element from public_keys.
- display_name (str): A user-friendly name to represent the invited
- user.
- """
- is_url = "%s%s/_matrix/identity/api/v1/store-invite" % (
- id_server_scheme, id_server,
- )
- invite_config = {
- "medium": medium,
- "address": address,
- "room_id": room_id,
- "room_alias": room_alias,
- "room_avatar_url": room_avatar_url,
- "room_join_rules": room_join_rules,
- "room_name": room_name,
- "sender": inviter_user_id,
- "sender_display_name": inviter_display_name,
- "sender_avatar_url": inviter_avatar_url,
- }
- if self.config.invite_3pid_guest:
- guest_access_token, guest_user_id = yield self.get_or_register_3pid_guest(
- requester=requester,
- medium=medium,
- address=address,
- inviter_user_id=inviter_user_id,
- )
- invite_config.update({
- "guest_access_token": guest_access_token,
- "guest_user_id": guest_user_id,
- })
- data = yield self.simple_http_client.post_urlencoded_get_json(
- is_url,
- invite_config
- )
- # TODO: Check for success
- token = data["token"]
- public_keys = data.get("public_keys", [])
- if "public_key" in data:
- fallback_public_key = {
- "public_key": data["public_key"],
- "key_validity_url": "%s%s/_matrix/identity/api/v1/pubkey/isvalid" % (
- id_server_scheme, id_server,
- ),
- }
- else:
- fallback_public_key = public_keys[0]
- if not public_keys:
- public_keys.append(fallback_public_key)
- display_name = data["display_name"]
- defer.returnValue((token, public_keys, fallback_public_key, display_name))
- @defer.inlineCallbacks
- def _is_host_in_room(self, current_state_ids):
- # Have we just created the room, and is this about to be the very
- # first member event?
- create_event_id = current_state_ids.get(("m.room.create", ""))
- if len(current_state_ids) == 1 and create_event_id:
- defer.returnValue(self.hs.is_mine_id(create_event_id))
- for etype, state_key in current_state_ids:
- if etype != EventTypes.Member or not self.hs.is_mine_id(state_key):
- continue
- event_id = current_state_ids[(etype, state_key)]
- event = yield self.store.get_event(event_id, allow_none=True)
- if not event:
- continue
- if event.membership == Membership.JOIN:
- defer.returnValue(True)
- defer.returnValue(False)
- class RoomMemberMasterHandler(RoomMemberHandler):
- def __init__(self, hs):
- super(RoomMemberMasterHandler, self).__init__(hs)
- self.distributor = hs.get_distributor()
- self.distributor.declare("user_joined_room")
- self.distributor.declare("user_left_room")
- @defer.inlineCallbacks
- def _remote_join(self, requester, remote_room_hosts, room_id, user, content):
- """Implements RoomMemberHandler._remote_join
- """
- if len(remote_room_hosts) == 0:
- raise SynapseError(404, "No known servers")
- # We don't do an auth check if we are doing an invite
- # join dance for now, since we're kinda implicitly checking
- # that we are allowed to join when we decide whether or not we
- # need to do the invite/join dance.
- yield self.federation_handler.do_invite_join(
- remote_room_hosts,
- room_id,
- user.to_string(),
- content,
- )
- yield self._user_joined_room(user, room_id)
- @defer.inlineCallbacks
- def _remote_reject_invite(self, requester, remote_room_hosts, room_id, target):
- """Implements RoomMemberHandler._remote_reject_invite
- """
- fed_handler = self.federation_handler
- try:
- ret = yield fed_handler.do_remotely_reject_invite(
- remote_room_hosts,
- room_id,
- target.to_string(),
- )
- defer.returnValue(ret)
- except Exception as e:
- # if we were unable to reject the exception, just mark
- # it as rejected on our end and plough ahead.
- #
- # The 'except' clause is very broad, but we need to
- # capture everything from DNS failures upwards
- #
- logger.warn("Failed to reject invite: %s", e)
- yield self.store.locally_reject_invite(
- target.to_string(), room_id
- )
- defer.returnValue({})
- def get_or_register_3pid_guest(self, requester, medium, address, inviter_user_id):
- """Implements RoomMemberHandler.get_or_register_3pid_guest
- """
- rg = self.registration_handler
- return rg.get_or_register_3pid_guest(medium, address, inviter_user_id)
- def _user_joined_room(self, target, room_id):
- """Implements RoomMemberHandler._user_joined_room
- """
- return user_joined_room(self.distributor, target, room_id)
- def _user_left_room(self, target, room_id):
- """Implements RoomMemberHandler._user_left_room
- """
- return user_left_room(self.distributor, target, room_id)
- @defer.inlineCallbacks
- def forget(self, user, room_id):
- user_id = user.to_string()
- member = yield self.state_handler.get_current_state(
- room_id=room_id,
- event_type=EventTypes.Member,
- state_key=user_id
- )
- membership = member.membership if member else None
- if membership is not None and membership not in [
- Membership.LEAVE, Membership.BAN
- ]:
- raise SynapseError(400, "User %s in room %s" % (
- user_id, room_id
- ))
- if membership:
- yield self.store.forget(user_id, room_id)
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