1036 lines
		
	
	
		
			35 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			1036 lines
		
	
	
		
			35 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2014 - 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Contains functions for performing events on rooms."""
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from twisted.internet import defer
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from ._base import BaseHandler
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from synapse.types import UserID, RoomAlias, RoomID
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from synapse.api.constants import (
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    EventTypes, Membership, JoinRules, RoomCreationPreset,
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)
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from synapse.api.errors import AuthError, StoreError, SynapseError, Codes
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from synapse.util import stringutils, unwrapFirstError
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from synapse.util.async import run_on_reactor
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from signedjson.sign import verify_signed_json
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from signedjson.key import decode_verify_key_bytes
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from collections import OrderedDict
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from unpaddedbase64 import decode_base64
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import logging
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import math
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import string
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logger = logging.getLogger(__name__)
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id_server_scheme = "https://"
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def collect_presencelike_data(distributor, user, content):
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    return distributor.fire("collect_presencelike_data", user, content)
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def user_left_room(distributor, user, room_id):
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    return distributor.fire("user_left_room", user=user, room_id=room_id)
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def user_joined_room(distributor, user, room_id):
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    return distributor.fire("user_joined_room", user=user, room_id=room_id)
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class RoomCreationHandler(BaseHandler):
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    PRESETS_DICT = {
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        RoomCreationPreset.PRIVATE_CHAT: {
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            "join_rules": JoinRules.INVITE,
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            "history_visibility": "shared",
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            "original_invitees_have_ops": False,
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        },
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        RoomCreationPreset.TRUSTED_PRIVATE_CHAT: {
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            "join_rules": JoinRules.INVITE,
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            "history_visibility": "shared",
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            "original_invitees_have_ops": True,
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        },
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        RoomCreationPreset.PUBLIC_CHAT: {
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            "join_rules": JoinRules.PUBLIC,
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            "history_visibility": "shared",
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            "original_invitees_have_ops": False,
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        },
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    }
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    @defer.inlineCallbacks
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    def create_room(self, user_id, room_id, config):
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        """ Creates a new room.
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        Args:
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            user_id (str): The ID of the user creating the new room.
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            room_id (str): The proposed ID for the new room. Can be None, in
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            which case one will be created for you.
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            config (dict) : A dict of configuration options.
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        Returns:
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            The new room ID.
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        Raises:
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            SynapseError if the room ID was taken, couldn't be stored, or
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            something went horribly wrong.
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        """
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        self.ratelimit(user_id)
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        if "room_alias_name" in config:
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            for wchar in string.whitespace:
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                if wchar in config["room_alias_name"]:
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                    raise SynapseError(400, "Invalid characters in room alias")
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            room_alias = RoomAlias.create(
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                config["room_alias_name"],
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                self.hs.hostname,
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            )
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            mapping = yield self.store.get_association_from_room_alias(
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                room_alias
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            )
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            if mapping:
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                raise SynapseError(400, "Room alias already taken")
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        else:
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            room_alias = None
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        invite_list = config.get("invite", [])
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        for i in invite_list:
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            try:
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                UserID.from_string(i)
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            except:
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                raise SynapseError(400, "Invalid user_id: %s" % (i,))
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        invite_3pid_list = config.get("invite_3pid", [])
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        is_public = config.get("visibility", None) == "public"
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        if room_id:
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            # Ensure room_id is the correct type
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            room_id_obj = RoomID.from_string(room_id)
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            if not self.hs.is_mine(room_id_obj):
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                raise SynapseError(400, "Room id must be local")
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            yield self.store.store_room(
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                room_id=room_id,
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                room_creator_user_id=user_id,
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                is_public=is_public
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            )
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        else:
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            # autogen room IDs and try to create it. We may clash, so just
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            # try a few times till one goes through, giving up eventually.
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            attempts = 0
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            room_id = None
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            while attempts < 5:
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                try:
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                    random_string = stringutils.random_string(18)
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                    gen_room_id = RoomID.create(
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                        random_string,
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                        self.hs.hostname,
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                    )
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                    yield self.store.store_room(
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                        room_id=gen_room_id.to_string(),
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                        room_creator_user_id=user_id,
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                        is_public=is_public
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                    )
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                    room_id = gen_room_id.to_string()
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                    break
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                except StoreError:
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                    attempts += 1
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            if not room_id:
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                raise StoreError(500, "Couldn't generate a room ID.")
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        if room_alias:
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            directory_handler = self.hs.get_handlers().directory_handler
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            yield directory_handler.create_association(
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                user_id=user_id,
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                room_id=room_id,
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                room_alias=room_alias,
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                servers=[self.hs.hostname],
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            )
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        preset_config = config.get(
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            "preset",
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            RoomCreationPreset.PUBLIC_CHAT
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            if is_public
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            else RoomCreationPreset.PRIVATE_CHAT
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        )
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        raw_initial_state = config.get("initial_state", [])
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        initial_state = OrderedDict()
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        for val in raw_initial_state:
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            initial_state[(val["type"], val.get("state_key", ""))] = val["content"]
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        creation_content = config.get("creation_content", {})
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        user = UserID.from_string(user_id)
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        creation_events = self._create_events_for_new_room(
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            user, room_id,
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            preset_config=preset_config,
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            invite_list=invite_list,
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            initial_state=initial_state,
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            creation_content=creation_content,
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            room_alias=room_alias,
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        )
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        msg_handler = self.hs.get_handlers().message_handler
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        for event in creation_events:
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            yield msg_handler.create_and_send_event(event, ratelimit=False)
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        if "name" in config:
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            name = config["name"]
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            yield msg_handler.create_and_send_event({
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                "type": EventTypes.Name,
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                "room_id": room_id,
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                "sender": user_id,
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                "state_key": "",
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                "content": {"name": name},
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            }, ratelimit=False)
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        if "topic" in config:
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            topic = config["topic"]
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            yield msg_handler.create_and_send_event({
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                "type": EventTypes.Topic,
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                "room_id": room_id,
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                "sender": user_id,
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                "state_key": "",
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                "content": {"topic": topic},
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            }, ratelimit=False)
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        for invitee in invite_list:
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            yield msg_handler.create_and_send_event({
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                "type": EventTypes.Member,
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                "state_key": invitee,
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                "room_id": room_id,
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                "sender": user_id,
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                "content": {"membership": Membership.INVITE},
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            }, ratelimit=False)
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        for invite_3pid in invite_3pid_list:
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            id_server = invite_3pid["id_server"]
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            address = invite_3pid["address"]
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            medium = invite_3pid["medium"]
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            yield self.hs.get_handlers().room_member_handler.do_3pid_invite(
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                room_id,
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                user,
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                medium,
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                address,
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                id_server,
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                token_id=None,
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                txn_id=None,
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            )
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        result = {"room_id": room_id}
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        if room_alias:
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            result["room_alias"] = room_alias.to_string()
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            yield directory_handler.send_room_alias_update_event(
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                user_id, room_id
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            )
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        defer.returnValue(result)
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    def _create_events_for_new_room(self, creator, room_id, preset_config,
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                                    invite_list, initial_state, creation_content,
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                                    room_alias):
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        config = RoomCreationHandler.PRESETS_DICT[preset_config]
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        creator_id = creator.to_string()
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        event_keys = {
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            "room_id": room_id,
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            "sender": creator_id,
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            "state_key": "",
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        }
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        def create(etype, content, **kwargs):
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            e = {
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                "type": etype,
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                "content": content,
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            }
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            e.update(event_keys)
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            e.update(kwargs)
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            return e
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        creation_content.update({"creator": creator.to_string()})
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        creation_event = create(
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            etype=EventTypes.Create,
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            content=creation_content,
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        )
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        join_event = create(
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            etype=EventTypes.Member,
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            state_key=creator_id,
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            content={
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                "membership": Membership.JOIN,
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            },
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        )
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        returned_events = [creation_event, join_event]
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        if (EventTypes.PowerLevels, '') not in initial_state:
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            power_level_content = {
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                "users": {
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                    creator.to_string(): 100,
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                },
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                "users_default": 0,
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                "events": {
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                    EventTypes.Name: 50,
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                    EventTypes.PowerLevels: 100,
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                    EventTypes.RoomHistoryVisibility: 100,
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                    EventTypes.CanonicalAlias: 50,
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                    EventTypes.RoomAvatar: 50,
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                },
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                "events_default": 0,
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                "state_default": 50,
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                "ban": 50,
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                "kick": 50,
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                "redact": 50,
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                "invite": 0,
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            }
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            if config["original_invitees_have_ops"]:
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                for invitee in invite_list:
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                    power_level_content["users"][invitee] = 100
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            power_levels_event = create(
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                etype=EventTypes.PowerLevels,
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                content=power_level_content,
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            )
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            returned_events.append(power_levels_event)
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        if room_alias and (EventTypes.CanonicalAlias, '') not in initial_state:
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            room_alias_event = create(
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                etype=EventTypes.CanonicalAlias,
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                content={"alias": room_alias.to_string()},
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            )
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            returned_events.append(room_alias_event)
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        if (EventTypes.JoinRules, '') not in initial_state:
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            join_rules_event = create(
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                etype=EventTypes.JoinRules,
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                content={"join_rule": config["join_rules"]},
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            )
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            returned_events.append(join_rules_event)
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        if (EventTypes.RoomHistoryVisibility, '') not in initial_state:
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            history_event = create(
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                etype=EventTypes.RoomHistoryVisibility,
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                content={"history_visibility": config["history_visibility"]}
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            )
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            returned_events.append(history_event)
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        for (etype, state_key), content in initial_state.items():
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            returned_events.append(create(
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                etype=etype,
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                state_key=state_key,
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                content=content,
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            ))
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        return returned_events
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class RoomMemberHandler(BaseHandler):
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    # TODO(paul): This handler currently contains a messy conflation of
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    #   low-level API that works on UserID objects and so on, and REST-level
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    #   API that takes ID strings and returns pagination chunks. These concerns
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    #   ought to be separated out a lot better.
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    def __init__(self, hs):
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        super(RoomMemberHandler, self).__init__(hs)
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        self.clock = hs.get_clock()
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        self.distributor = hs.get_distributor()
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        self.distributor.declare("user_joined_room")
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        self.distributor.declare("user_left_room")
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    @defer.inlineCallbacks
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    def get_room_members(self, room_id):
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        users = yield self.store.get_users_in_room(room_id)
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        defer.returnValue([UserID.from_string(u) for u in users])
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    @defer.inlineCallbacks
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    def fetch_room_distributions_into(self, room_id, localusers=None,
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                                      remotedomains=None, ignore_user=None):
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        """Fetch the distribution of a room, adding elements to either
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        'localusers' or 'remotedomains', which should be a set() if supplied.
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        If ignore_user is set, ignore that user.
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        This function returns nothing; its result is performed by the
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        side-effect on the two passed sets. This allows easy accumulation of
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        member lists of multiple rooms at once if required.
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        """
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        members = yield self.get_room_members(room_id)
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        for member in members:
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            if ignore_user is not None and member == ignore_user:
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                continue
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            if self.hs.is_mine(member):
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                if localusers is not None:
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                    localusers.add(member)
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            else:
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                if remotedomains is not None:
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                    remotedomains.add(member.domain)
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    @defer.inlineCallbacks
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    def update_membership(self, requester, target, room_id, action, txn_id=None):
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        effective_membership_state = action
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        if action in ["kick", "unban"]:
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            effective_membership_state = "leave"
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        elif action == "forget":
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            effective_membership_state = "leave"
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        msg_handler = self.hs.get_handlers().message_handler
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        content = {"membership": unicode(effective_membership_state)}
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						|
        if requester.is_guest:
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            content["kind"] = "guest"
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        event, context = yield msg_handler.create_event(
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						|
            {
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						|
                "type": EventTypes.Member,
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						|
                "content": content,
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						|
                "room_id": room_id,
 | 
						|
                "sender": requester.user.to_string(),
 | 
						|
                "state_key": target.to_string(),
 | 
						|
            },
 | 
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            token_id=requester.access_token_id,
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            txn_id=txn_id,
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        )
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        old_state = context.current_state.get((EventTypes.Member, event.state_key))
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        old_membership = old_state.content.get("membership") if old_state else None
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        if action == "unban" and old_membership != "ban":
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            raise SynapseError(
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						|
                403,
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						|
                "Cannot unban user who was not banned (membership=%s)" % old_membership,
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                errcode=Codes.BAD_STATE
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            )
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        if old_membership == "ban" and action != "unban":
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						|
            raise SynapseError(
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						|
                403,
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                "Cannot %s user who was is banned" % (action,),
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                errcode=Codes.BAD_STATE
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            )
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						|
        yield msg_handler.send_event(
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            event,
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            context,
 | 
						|
            ratelimit=True,
 | 
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            is_guest=requester.is_guest
 | 
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        )
 | 
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						|
        if action == "forget":
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            yield self.forget(requester.user, room_id)
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 | 
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    @defer.inlineCallbacks
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						|
    def send_membership_event(self, event, context, is_guest=False):
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        """ Change the membership status of a user in a room.
 | 
						|
 | 
						|
        Args:
 | 
						|
            event (SynapseEvent): The membership event
 | 
						|
        Raises:
 | 
						|
            SynapseError if there was a problem changing the membership.
 | 
						|
        """
 | 
						|
        target_user_id = event.state_key
 | 
						|
 | 
						|
        prev_state = context.current_state.get(
 | 
						|
            (EventTypes.Member, target_user_id),
 | 
						|
            None
 | 
						|
        )
 | 
						|
 | 
						|
        room_id = event.room_id
 | 
						|
 | 
						|
        # If we're trying to join a room then we have to do this differently
 | 
						|
        # if this HS is not currently in the room, i.e. we have to do the
 | 
						|
        # invite/join dance.
 | 
						|
        if event.membership == Membership.JOIN:
 | 
						|
            if is_guest:
 | 
						|
                guest_access = context.current_state.get(
 | 
						|
                    (EventTypes.GuestAccess, ""),
 | 
						|
                    None
 | 
						|
                )
 | 
						|
                is_guest_access_allowed = (
 | 
						|
                    guest_access
 | 
						|
                    and guest_access.content
 | 
						|
                    and "guest_access" in guest_access.content
 | 
						|
                    and guest_access.content["guest_access"] == "can_join"
 | 
						|
                )
 | 
						|
                if not is_guest_access_allowed:
 | 
						|
                    raise AuthError(403, "Guest access not allowed")
 | 
						|
 | 
						|
            yield self._do_join(event, context)
 | 
						|
        else:
 | 
						|
            if event.membership == Membership.LEAVE:
 | 
						|
                is_host_in_room = yield self.is_host_in_room(room_id, context)
 | 
						|
                if not is_host_in_room:
 | 
						|
                    # Rejecting an invite, rather than leaving a joined room
 | 
						|
                    handler = self.hs.get_handlers().federation_handler
 | 
						|
                    inviter = yield self.get_inviter(event)
 | 
						|
                    if not inviter:
 | 
						|
                        # return the same error as join_room_alias does
 | 
						|
                        raise SynapseError(404, "No known servers")
 | 
						|
                    yield handler.do_remotely_reject_invite(
 | 
						|
                        [inviter.domain],
 | 
						|
                        room_id,
 | 
						|
                        event.user_id
 | 
						|
                    )
 | 
						|
                    defer.returnValue({"room_id": room_id})
 | 
						|
                    return
 | 
						|
 | 
						|
            # FIXME: This isn't idempotency.
 | 
						|
            if prev_state and prev_state.membership == event.membership:
 | 
						|
                # double same action, treat this event as a NOOP.
 | 
						|
                defer.returnValue({})
 | 
						|
                return
 | 
						|
 | 
						|
            yield self._do_local_membership_update(
 | 
						|
                event,
 | 
						|
                context=context,
 | 
						|
            )
 | 
						|
 | 
						|
            if prev_state and prev_state.membership == Membership.JOIN:
 | 
						|
                user = UserID.from_string(event.user_id)
 | 
						|
                user_left_room(self.distributor, user, event.room_id)
 | 
						|
 | 
						|
        defer.returnValue({"room_id": room_id})
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def join_room_alias(self, joinee, room_alias, content={}):
 | 
						|
        directory_handler = self.hs.get_handlers().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"]
 | 
						|
        hosts = mapping["servers"]
 | 
						|
        if not hosts:
 | 
						|
            raise SynapseError(404, "No known servers")
 | 
						|
 | 
						|
        # If event doesn't include a display name, add one.
 | 
						|
        yield collect_presencelike_data(self.distributor, joinee, content)
 | 
						|
 | 
						|
        content.update({"membership": Membership.JOIN})
 | 
						|
        builder = self.event_builder_factory.new({
 | 
						|
            "type": EventTypes.Member,
 | 
						|
            "state_key": joinee.to_string(),
 | 
						|
            "room_id": room_id,
 | 
						|
            "sender": joinee.to_string(),
 | 
						|
            "membership": Membership.JOIN,
 | 
						|
            "content": content,
 | 
						|
        })
 | 
						|
        event, context = yield self._create_new_client_event(builder)
 | 
						|
 | 
						|
        yield self._do_join(event, context, room_hosts=hosts)
 | 
						|
 | 
						|
        defer.returnValue({"room_id": room_id})
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def _do_join(self, event, context, room_hosts=None):
 | 
						|
        room_id = event.room_id
 | 
						|
 | 
						|
        # XXX: 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.
 | 
						|
 | 
						|
        is_host_in_room = yield self.is_host_in_room(room_id, context)
 | 
						|
        if is_host_in_room:
 | 
						|
            should_do_dance = False
 | 
						|
        elif room_hosts:  # TODO: Shouldn't this be remote_room_host?
 | 
						|
            should_do_dance = True
 | 
						|
        else:
 | 
						|
            inviter = yield self.get_inviter(event)
 | 
						|
            if not inviter:
 | 
						|
                # return the same error as join_room_alias does
 | 
						|
                raise SynapseError(404, "No known servers")
 | 
						|
            should_do_dance = not self.hs.is_mine(inviter)
 | 
						|
            room_hosts = [inviter.domain]
 | 
						|
 | 
						|
        if should_do_dance:
 | 
						|
            handler = self.hs.get_handlers().federation_handler
 | 
						|
            yield handler.do_invite_join(
 | 
						|
                room_hosts,
 | 
						|
                room_id,
 | 
						|
                event.user_id,
 | 
						|
                event.content,
 | 
						|
            )
 | 
						|
        else:
 | 
						|
            logger.debug("Doing normal join")
 | 
						|
 | 
						|
            yield self._do_local_membership_update(
 | 
						|
                event,
 | 
						|
                context=context,
 | 
						|
            )
 | 
						|
 | 
						|
        prev_state = context.current_state.get((event.type, event.state_key))
 | 
						|
        if not prev_state or prev_state.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.
 | 
						|
            user = UserID.from_string(event.user_id)
 | 
						|
            yield user_joined_room(self.distributor, user, room_id)
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_inviter(self, event):
 | 
						|
        # TODO(markjh): get prev_state from snapshot
 | 
						|
        prev_state = yield self.store.get_room_member(
 | 
						|
            event.user_id, event.room_id
 | 
						|
        )
 | 
						|
 | 
						|
        if prev_state and prev_state.membership == Membership.INVITE:
 | 
						|
            defer.returnValue(UserID.from_string(prev_state.user_id))
 | 
						|
            return
 | 
						|
        elif "third_party_invite" in event.content:
 | 
						|
            if "sender" in event.content["third_party_invite"]:
 | 
						|
                inviter = UserID.from_string(
 | 
						|
                    event.content["third_party_invite"]["sender"]
 | 
						|
                )
 | 
						|
                defer.returnValue(inviter)
 | 
						|
        defer.returnValue(None)
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def is_host_in_room(self, room_id, context):
 | 
						|
        is_host_in_room = yield self.auth.check_host_in_room(
 | 
						|
            room_id,
 | 
						|
            self.hs.hostname
 | 
						|
        )
 | 
						|
        if not is_host_in_room:
 | 
						|
            # is *anyone* in the room?
 | 
						|
            room_member_keys = [
 | 
						|
                v for (k, v) in context.current_state.keys() if (
 | 
						|
                    k == "m.room.member"
 | 
						|
                )
 | 
						|
            ]
 | 
						|
            if len(room_member_keys) == 0:
 | 
						|
                # has the room been created so we can join it?
 | 
						|
                create_event = context.current_state.get(("m.room.create", ""))
 | 
						|
                if create_event:
 | 
						|
                    is_host_in_room = True
 | 
						|
        defer.returnValue(is_host_in_room)
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_joined_rooms_for_user(self, user):
 | 
						|
        """Returns a list of roomids that the user has any of the given
 | 
						|
        membership states in."""
 | 
						|
 | 
						|
        rooms = yield self.store.get_rooms_for_user(
 | 
						|
            user.to_string(),
 | 
						|
        )
 | 
						|
 | 
						|
        # For some reason the list of events contains duplicates
 | 
						|
        # TODO(paul): work out why because I really don't think it should
 | 
						|
        room_ids = set(r.room_id for r in rooms)
 | 
						|
 | 
						|
        defer.returnValue(room_ids)
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def _do_local_membership_update(self, event, context):
 | 
						|
        yield run_on_reactor()
 | 
						|
 | 
						|
        target_user = UserID.from_string(event.state_key)
 | 
						|
 | 
						|
        yield self.handle_new_client_event(
 | 
						|
            event,
 | 
						|
            context,
 | 
						|
            extra_users=[target_user],
 | 
						|
        )
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def do_3pid_invite(
 | 
						|
            self,
 | 
						|
            room_id,
 | 
						|
            inviter,
 | 
						|
            medium,
 | 
						|
            address,
 | 
						|
            id_server,
 | 
						|
            token_id,
 | 
						|
            txn_id
 | 
						|
    ):
 | 
						|
        invitee = yield self._lookup_3pid(
 | 
						|
            id_server, medium, address
 | 
						|
        )
 | 
						|
 | 
						|
        if invitee:
 | 
						|
            # make sure it looks like a user ID; it'll throw if it's invalid.
 | 
						|
            UserID.from_string(invitee)
 | 
						|
            yield self.hs.get_handlers().message_handler.create_and_send_event(
 | 
						|
                {
 | 
						|
                    "type": EventTypes.Member,
 | 
						|
                    "content": {
 | 
						|
                        "membership": unicode("invite")
 | 
						|
                    },
 | 
						|
                    "room_id": room_id,
 | 
						|
                    "sender": inviter.to_string(),
 | 
						|
                    "state_key": invitee,
 | 
						|
                },
 | 
						|
                token_id=token_id,
 | 
						|
                txn_id=txn_id,
 | 
						|
            )
 | 
						|
        else:
 | 
						|
            yield self._make_and_store_3pid_invite(
 | 
						|
                id_server,
 | 
						|
                medium,
 | 
						|
                address,
 | 
						|
                room_id,
 | 
						|
                inviter,
 | 
						|
                token_id,
 | 
						|
                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.hs.get_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")
 | 
						|
                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.hs.get_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,
 | 
						|
            id_server,
 | 
						|
            medium,
 | 
						|
            address,
 | 
						|
            room_id,
 | 
						|
            user,
 | 
						|
            token_id,
 | 
						|
            txn_id
 | 
						|
    ):
 | 
						|
        room_state = yield self.hs.get_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_key, key_validity_url, display_name = (
 | 
						|
            yield self._ask_id_server_for_third_party_invite(
 | 
						|
                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
 | 
						|
            )
 | 
						|
        )
 | 
						|
        msg_handler = self.hs.get_handlers().message_handler
 | 
						|
        yield msg_handler.create_and_send_event(
 | 
						|
            {
 | 
						|
                "type": EventTypes.ThirdPartyInvite,
 | 
						|
                "content": {
 | 
						|
                    "display_name": display_name,
 | 
						|
                    "key_validity_url": key_validity_url,
 | 
						|
                    "public_key": public_key,
 | 
						|
                },
 | 
						|
                "room_id": room_id,
 | 
						|
                "sender": user.to_string(),
 | 
						|
                "state_key": token,
 | 
						|
            },
 | 
						|
            token_id=token_id,
 | 
						|
            txn_id=txn_id,
 | 
						|
        )
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def _ask_id_server_for_third_party_invite(
 | 
						|
            self,
 | 
						|
            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
 | 
						|
    ):
 | 
						|
        is_url = "%s%s/_matrix/identity/api/v1/store-invite" % (
 | 
						|
            id_server_scheme, id_server,
 | 
						|
        )
 | 
						|
        data = yield self.hs.get_simple_http_client().post_urlencoded_get_json(
 | 
						|
            is_url,
 | 
						|
            {
 | 
						|
                "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,
 | 
						|
            }
 | 
						|
        )
 | 
						|
        # TODO: Check for success
 | 
						|
        token = data["token"]
 | 
						|
        public_key = data["public_key"]
 | 
						|
        display_name = data["display_name"]
 | 
						|
        key_validity_url = "%s%s/_matrix/identity/api/v1/pubkey/isvalid" % (
 | 
						|
            id_server_scheme, id_server,
 | 
						|
        )
 | 
						|
        defer.returnValue((token, public_key, key_validity_url, display_name))
 | 
						|
 | 
						|
    def forget(self, user, room_id):
 | 
						|
        return self.store.forget(user.to_string(), room_id)
 | 
						|
 | 
						|
 | 
						|
class RoomListHandler(BaseHandler):
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_public_room_list(self):
 | 
						|
        chunk = yield self.store.get_rooms(is_public=True)
 | 
						|
 | 
						|
        room_members = yield defer.gatherResults(
 | 
						|
            [
 | 
						|
                self.store.get_users_in_room(room["room_id"])
 | 
						|
                for room in chunk
 | 
						|
            ],
 | 
						|
            consumeErrors=True,
 | 
						|
        ).addErrback(unwrapFirstError)
 | 
						|
 | 
						|
        avatar_urls = yield defer.gatherResults(
 | 
						|
            [
 | 
						|
                self.get_room_avatar_url(room["room_id"])
 | 
						|
                for room in chunk
 | 
						|
            ],
 | 
						|
            consumeErrors=True,
 | 
						|
        ).addErrback(unwrapFirstError)
 | 
						|
 | 
						|
        for i, room in enumerate(chunk):
 | 
						|
            room["num_joined_members"] = len(room_members[i])
 | 
						|
            if avatar_urls[i]:
 | 
						|
                room["avatar_url"] = avatar_urls[i]
 | 
						|
 | 
						|
        # FIXME (erikj): START is no longer a valid value
 | 
						|
        defer.returnValue({"start": "START", "end": "END", "chunk": chunk})
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_room_avatar_url(self, room_id):
 | 
						|
        event = yield self.hs.get_state_handler().get_current_state(
 | 
						|
            room_id, "m.room.avatar"
 | 
						|
        )
 | 
						|
        if event and "url" in event.content:
 | 
						|
            defer.returnValue(event.content["url"])
 | 
						|
 | 
						|
 | 
						|
class RoomContextHandler(BaseHandler):
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_event_context(self, user, room_id, event_id, limit, is_guest):
 | 
						|
        """Retrieves events, pagination tokens and state around a given event
 | 
						|
        in a room.
 | 
						|
 | 
						|
        Args:
 | 
						|
            user (UserID)
 | 
						|
            room_id (str)
 | 
						|
            event_id (str)
 | 
						|
            limit (int): The maximum number of events to return in total
 | 
						|
                (excluding state).
 | 
						|
 | 
						|
        Returns:
 | 
						|
            dict, or None if the event isn't found
 | 
						|
        """
 | 
						|
        before_limit = math.floor(limit/2.)
 | 
						|
        after_limit = limit - before_limit
 | 
						|
 | 
						|
        now_token = yield self.hs.get_event_sources().get_current_token()
 | 
						|
 | 
						|
        def filter_evts(events):
 | 
						|
            return self._filter_events_for_client(
 | 
						|
                user.to_string(),
 | 
						|
                events,
 | 
						|
                is_guest=is_guest)
 | 
						|
 | 
						|
        event = yield self.store.get_event(event_id, get_prev_content=True,
 | 
						|
                                           allow_none=True)
 | 
						|
        if not event:
 | 
						|
            defer.returnValue(None)
 | 
						|
            return
 | 
						|
 | 
						|
        filtered = yield(filter_evts([event]))
 | 
						|
        if not filtered:
 | 
						|
            raise AuthError(
 | 
						|
                403,
 | 
						|
                "You don't have permission to access that event."
 | 
						|
            )
 | 
						|
 | 
						|
        results = yield self.store.get_events_around(
 | 
						|
            room_id, event_id, before_limit, after_limit
 | 
						|
        )
 | 
						|
 | 
						|
        results["events_before"] = yield filter_evts(results["events_before"])
 | 
						|
        results["events_after"] = yield filter_evts(results["events_after"])
 | 
						|
        results["event"] = event
 | 
						|
 | 
						|
        if results["events_after"]:
 | 
						|
            last_event_id = results["events_after"][-1].event_id
 | 
						|
        else:
 | 
						|
            last_event_id = event_id
 | 
						|
 | 
						|
        state = yield self.store.get_state_for_events(
 | 
						|
            [last_event_id], None
 | 
						|
        )
 | 
						|
        results["state"] = state[last_event_id].values()
 | 
						|
 | 
						|
        results["start"] = now_token.copy_and_replace(
 | 
						|
            "room_key", results["start"]
 | 
						|
        ).to_string()
 | 
						|
 | 
						|
        results["end"] = now_token.copy_and_replace(
 | 
						|
            "room_key", results["end"]
 | 
						|
        ).to_string()
 | 
						|
 | 
						|
        defer.returnValue(results)
 | 
						|
 | 
						|
 | 
						|
class RoomEventSource(object):
 | 
						|
    def __init__(self, hs):
 | 
						|
        self.store = hs.get_datastore()
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_new_events(
 | 
						|
            self,
 | 
						|
            user,
 | 
						|
            from_key,
 | 
						|
            limit,
 | 
						|
            room_ids,
 | 
						|
            is_guest,
 | 
						|
    ):
 | 
						|
        # We just ignore the key for now.
 | 
						|
 | 
						|
        to_key = yield self.get_current_key()
 | 
						|
 | 
						|
        app_service = yield self.store.get_app_service_by_user_id(
 | 
						|
            user.to_string()
 | 
						|
        )
 | 
						|
        if app_service:
 | 
						|
            events, end_key = yield self.store.get_appservice_room_stream(
 | 
						|
                service=app_service,
 | 
						|
                from_key=from_key,
 | 
						|
                to_key=to_key,
 | 
						|
                limit=limit,
 | 
						|
            )
 | 
						|
        else:
 | 
						|
            events, end_key = yield self.store.get_room_events_stream(
 | 
						|
                user_id=user.to_string(),
 | 
						|
                from_key=from_key,
 | 
						|
                to_key=to_key,
 | 
						|
                limit=limit,
 | 
						|
                room_ids=room_ids,
 | 
						|
                is_guest=is_guest,
 | 
						|
            )
 | 
						|
 | 
						|
        defer.returnValue((events, end_key))
 | 
						|
 | 
						|
    def get_current_key(self, direction='f'):
 | 
						|
        return self.store.get_room_events_max_id(direction)
 | 
						|
 | 
						|
    @defer.inlineCallbacks
 | 
						|
    def get_pagination_rows(self, user, config, key):
 | 
						|
        events, next_key = yield self.store.paginate_room_events(
 | 
						|
            room_id=key,
 | 
						|
            from_key=config.from_key,
 | 
						|
            to_key=config.to_key,
 | 
						|
            direction=config.direction,
 | 
						|
            limit=config.limit,
 | 
						|
        )
 | 
						|
 | 
						|
        defer.returnValue((events, next_key))
 |