1095 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			1095 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			Python
		
	
	
| # -*- coding: utf-8 -*-
 | |
| # 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."""
 | |
| from twisted.internet import defer
 | |
| 
 | |
| from ._base import BaseHandler
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| 
 | |
| from synapse.types import UserID, RoomAlias, RoomID, RoomStreamToken
 | |
| from synapse.api.constants import (
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|     EventTypes, Membership, JoinRules, RoomCreationPreset,
 | |
| )
 | |
| from synapse.api.errors import AuthError, StoreError, SynapseError, Codes
 | |
| from synapse.util import stringutils, unwrapFirstError
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| from synapse.util.async import run_on_reactor
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| from synapse.util.logcontext import preserve_context_over_fn
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| 
 | |
| from signedjson.sign import verify_signed_json
 | |
| 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
 | |
| import string
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| 
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| logger = logging.getLogger(__name__)
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| 
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| id_server_scheme = "https://"
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| 
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| 
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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 preserve_context_over_fn(
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|         distributor.fire,
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|         "user_left_room", user=user, room_id=room_id
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|     )
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| 
 | |
| 
 | |
| def user_joined_room(distributor, user, room_id):
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|     return preserve_context_over_fn(
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|         distributor.fire,
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|         "user_joined_room", user=user, room_id=room_id
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|     )
 | |
| 
 | |
| 
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| class RoomCreationHandler(BaseHandler):
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| 
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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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| 
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|     @defer.inlineCallbacks
 | |
|     def create_room(self, user_id, room_id, config):
 | |
|         """ 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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| 
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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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| 
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|         is_public = config.get("visibility", None) == "public"
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| 
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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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| 
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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
 | |
|             # 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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| 
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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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| 
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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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| 
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|         msg_handler = self.hs.get_handlers().message_handler
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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]
 | |
| 
 | |
|         creator_id = creator.to_string()
 | |
| 
 | |
|         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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| 
 | |
|         def create(etype, content, **kwargs):
 | |
|             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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| 
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|             return e
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| 
 | |
|         creation_content.update({"creator": creator.to_string()})
 | |
|         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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| 
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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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| 
 | |
|         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,
 | |
|             }
 | |
| 
 | |
|             if config["original_invitees_have_ops"]:
 | |
|                 for invitee in invite_list:
 | |
|                     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)
 | |
| 
 | |
|         if room_alias and (EventTypes.CanonicalAlias, '') not in initial_state:
 | |
|             room_alias_event = create(
 | |
|                 etype=EventTypes.CanonicalAlias,
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|                 content={"alias": room_alias.to_string()},
 | |
|             )
 | |
| 
 | |
|             returned_events.append(room_alias_event)
 | |
| 
 | |
|         if (EventTypes.JoinRules, '') not in initial_state:
 | |
|             join_rules_event = create(
 | |
|                 etype=EventTypes.JoinRules,
 | |
|                 content={"join_rule": config["join_rules"]},
 | |
|             )
 | |
| 
 | |
|             returned_events.append(join_rules_event)
 | |
| 
 | |
|         if (EventTypes.RoomHistoryVisibility, '') not in initial_state:
 | |
|             history_event = create(
 | |
|                 etype=EventTypes.RoomHistoryVisibility,
 | |
|                 content={"history_visibility": config["history_visibility"]}
 | |
|             )
 | |
| 
 | |
|             returned_events.append(history_event)
 | |
| 
 | |
|         for (etype, state_key), content in initial_state.items():
 | |
|             returned_events.append(create(
 | |
|                 etype=etype,
 | |
|                 state_key=state_key,
 | |
|                 content=content,
 | |
|             ))
 | |
| 
 | |
|         return returned_events
 | |
| 
 | |
| 
 | |
| class RoomMemberHandler(BaseHandler):
 | |
|     # 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.
 | |
| 
 | |
|     def __init__(self, hs):
 | |
|         super(RoomMemberHandler, self).__init__(hs)
 | |
| 
 | |
|         self.clock = hs.get_clock()
 | |
| 
 | |
|         self.distributor = hs.get_distributor()
 | |
|         self.distributor.declare("user_joined_room")
 | |
|         self.distributor.declare("user_left_room")
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def get_room_members(self, room_id):
 | |
|         users = yield self.store.get_users_in_room(room_id)
 | |
| 
 | |
|         defer.returnValue([UserID.from_string(u) for u in users])
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def fetch_room_distributions_into(self, room_id, localusers=None,
 | |
|                                       remotedomains=None, ignore_user=None):
 | |
|         """Fetch the distribution of a room, adding elements to either
 | |
|         'localusers' or 'remotedomains', which should be a set() if supplied.
 | |
|         If ignore_user is set, ignore that user.
 | |
| 
 | |
|         This function returns nothing; its result is performed by the
 | |
|         side-effect on the two passed sets. This allows easy accumulation of
 | |
|         member lists of multiple rooms at once if required.
 | |
|         """
 | |
|         members = yield self.get_room_members(room_id)
 | |
|         for member in members:
 | |
|             if ignore_user is not None and member == ignore_user:
 | |
|                 continue
 | |
| 
 | |
|             if self.hs.is_mine(member):
 | |
|                 if localusers is not None:
 | |
|                     localusers.add(member)
 | |
|             else:
 | |
|                 if remotedomains is not None:
 | |
|                     remotedomains.add(member.domain)
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def update_membership(self, requester, target, room_id, action, txn_id=None):
 | |
|         effective_membership_state = action
 | |
|         if action in ["kick", "unban"]:
 | |
|             effective_membership_state = "leave"
 | |
|         elif action == "forget":
 | |
|             effective_membership_state = "leave"
 | |
| 
 | |
|         msg_handler = self.hs.get_handlers().message_handler
 | |
| 
 | |
|         content = {"membership": unicode(effective_membership_state)}
 | |
|         if requester.is_guest:
 | |
|             content["kind"] = "guest"
 | |
| 
 | |
|         event, context = yield msg_handler.create_event(
 | |
|             {
 | |
|                 "type": EventTypes.Member,
 | |
|                 "content": content,
 | |
|                 "room_id": room_id,
 | |
|                 "sender": requester.user.to_string(),
 | |
|                 "state_key": target.to_string(),
 | |
|             },
 | |
|             token_id=requester.access_token_id,
 | |
|             txn_id=txn_id,
 | |
|         )
 | |
| 
 | |
|         old_state = context.current_state.get((EventTypes.Member, event.state_key))
 | |
|         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 is banned" % (action,),
 | |
|                 errcode=Codes.BAD_STATE
 | |
|             )
 | |
| 
 | |
|         yield msg_handler.send_event(
 | |
|             event,
 | |
|             context,
 | |
|             ratelimit=True,
 | |
|             is_guest=requester.is_guest
 | |
|         )
 | |
| 
 | |
|         if action == "forget":
 | |
|             yield self.forget(requester.user, room_id)
 | |
| 
 | |
|     @defer.inlineCallbacks
 | |
|     def send_membership_event(self, event, context, is_guest=False):
 | |
|         """ 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):
 | |
|         room_ids = yield self.store.get_public_room_ids()
 | |
| 
 | |
|         @defer.inlineCallbacks
 | |
|         def handle_room(room_id):
 | |
|             aliases = yield self.store.get_aliases_for_room(room_id)
 | |
|             if not aliases:
 | |
|                 defer.returnValue(None)
 | |
| 
 | |
|             state = yield self.state_handler.get_current_state(room_id)
 | |
| 
 | |
|             result = {"aliases": aliases, "room_id": room_id}
 | |
| 
 | |
|             name_event = state.get((EventTypes.Name, ""), None)
 | |
|             if name_event:
 | |
|                 name = name_event.content.get("name", None)
 | |
|                 if name:
 | |
|                     result["name"] = name
 | |
| 
 | |
|             topic_event = state.get((EventTypes.Topic, ""), None)
 | |
|             if topic_event:
 | |
|                 topic = topic_event.content.get("topic", None)
 | |
|                 if topic:
 | |
|                     result["topic"] = topic
 | |
| 
 | |
|             canonical_event = state.get((EventTypes.CanonicalAlias, ""), None)
 | |
|             if canonical_event:
 | |
|                 canonical_alias = canonical_event.content.get("alias", None)
 | |
|                 if canonical_alias:
 | |
|                     result["canonical_alias"] = canonical_alias
 | |
| 
 | |
|             visibility_event = state.get((EventTypes.RoomHistoryVisibility, ""), None)
 | |
|             visibility = None
 | |
|             if visibility_event:
 | |
|                 visibility = visibility_event.content.get("history_visibility", None)
 | |
|             result["world_readable"] = visibility == "world_readable"
 | |
| 
 | |
|             guest_event = state.get((EventTypes.GuestAccess, ""), None)
 | |
|             guest = None
 | |
|             if guest_event:
 | |
|                 guest = guest_event.content.get("guest_access", None)
 | |
|             result["guest_can_join"] = guest == "can_join"
 | |
| 
 | |
|             avatar_event = state.get(("m.room.avatar", ""), None)
 | |
|             if avatar_event:
 | |
|                 avatar_url = avatar_event.content.get("url", None)
 | |
|                 if avatar_url:
 | |
|                     result["avatar_url"] = avatar_url
 | |
| 
 | |
|             result["num_joined_members"] = sum(
 | |
|                 1 for (event_type, _), ev in state.items()
 | |
|                 if event_type == EventTypes.Member and ev.membership == Membership.JOIN
 | |
|             )
 | |
| 
 | |
|             defer.returnValue(result)
 | |
| 
 | |
|         result = []
 | |
|         for chunk in (room_ids[i:i + 10] for i in xrange(0, len(room_ids), 10)):
 | |
|             chunk_result = yield defer.gatherResults([
 | |
|                 handle_room(room_id)
 | |
|                 for room_id in chunk
 | |
|             ], consumeErrors=True).addErrback(unwrapFirstError)
 | |
|             result.extend(v for v in chunk_result if v)
 | |
| 
 | |
|         # FIXME (erikj): START is no longer a valid value
 | |
|         defer.returnValue({"start": "START", "end": "END", "chunk": result})
 | |
| 
 | |
| 
 | |
| 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_peeking=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()
 | |
| 
 | |
|         from_token = RoomStreamToken.parse(from_key)
 | |
|         if from_token.topological:
 | |
|             logger.warn("Stream has topological part!!!! %r", from_key)
 | |
|             from_key = "s%s" % (from_token.stream,)
 | |
| 
 | |
|         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:
 | |
|             room_events = yield self.store.get_membership_changes_for_user(
 | |
|                 user.to_string(), from_key, to_key
 | |
|             )
 | |
| 
 | |
|             room_to_events = yield self.store.get_room_events_stream_for_rooms(
 | |
|                 room_ids=room_ids,
 | |
|                 from_key=from_key,
 | |
|                 to_key=to_key,
 | |
|                 limit=limit or 10,
 | |
|             )
 | |
| 
 | |
|             events = list(room_events)
 | |
|             events.extend(e for evs, _ in room_to_events.values() for e in evs)
 | |
| 
 | |
|             events.sort(key=lambda e: e.internal_metadata.order)
 | |
| 
 | |
|             if limit:
 | |
|                 events[:] = events[:limit]
 | |
| 
 | |
|             if events:
 | |
|                 end_key = events[-1].internal_metadata.after
 | |
|             else:
 | |
|                 end_key = to_key
 | |
| 
 | |
|         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))
 |