synapse-product/synapse/rest/room.py

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# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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""" This module contains REST servlets to do with rooms: /rooms/<paths> """
from twisted.internet import defer
from base import RestServlet, client_path_pattern
from synapse.api.errors import SynapseError, Codes
from synapse.streams.config import PaginationConfig
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from synapse.api.events.room import RoomMemberEvent, RoomRedactionEvent
from synapse.api.constants import Membership
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import json
import logging
import urllib
logger = logging.getLogger(__name__)
class RoomCreateRestServlet(RestServlet):
# No PATTERN; we have custom dispatch rules here
def register(self, http_server):
PATTERN = "/createRoom"
register_txn_path(self, PATTERN, http_server)
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# define CORS for all of /rooms in RoomCreateRestServlet for simplicity
http_server.register_path("OPTIONS",
client_path_pattern("/rooms(?:/.*)?$"),
self.on_OPTIONS)
# define CORS for /createRoom[/txnid]
http_server.register_path("OPTIONS",
client_path_pattern("/createRoom(?:/.*)?$"),
self.on_OPTIONS)
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@defer.inlineCallbacks
def on_PUT(self, request, txn_id):
try:
defer.returnValue(self.txns.get_client_transaction(request, txn_id))
except KeyError:
pass
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response = yield self.on_POST(request)
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self.txns.store_client_transaction(request, txn_id, response)
defer.returnValue(response)
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@defer.inlineCallbacks
def on_POST(self, request):
auth_user = yield self.auth.get_user_by_req(request)
room_config = self.get_room_config(request)
info = yield self.make_room(room_config, auth_user, None)
room_config.update(info)
defer.returnValue((200, info))
@defer.inlineCallbacks
def make_room(self, room_config, auth_user, room_id):
handler = self.handlers.room_creation_handler
info = yield handler.create_room(
user_id=auth_user.to_string(),
room_id=room_id,
config=room_config
)
defer.returnValue(info)
def get_room_config(self, request):
try:
user_supplied_config = json.loads(request.content.read())
if "visibility" not in user_supplied_config:
# default visibility
user_supplied_config["visibility"] = "public"
return user_supplied_config
except (ValueError, TypeError):
raise SynapseError(400, "Body must be JSON.",
errcode=Codes.BAD_JSON)
def on_OPTIONS(self, request):
return (200, {})
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# TODO: Needs unit testing for generic events
class RoomStateEventRestServlet(RestServlet):
def register(self, http_server):
# /room/$roomid/state/$eventtype
no_state_key = "/rooms/(?P<room_id>[^/]*)/state/(?P<event_type>[^/]*)$"
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# /room/$roomid/state/$eventtype/$statekey
state_key = ("/rooms/(?P<room_id>[^/]*)/state/" +
"(?P<event_type>[^/]*)/(?P<state_key>[^/]*)$")
http_server.register_path("GET",
client_path_pattern(state_key),
self.on_GET)
http_server.register_path("PUT",
client_path_pattern(state_key),
self.on_PUT)
http_server.register_path("GET",
client_path_pattern(no_state_key),
self.on_GET_no_state_key)
http_server.register_path("PUT",
client_path_pattern(no_state_key),
self.on_PUT_no_state_key)
def on_GET_no_state_key(self, request, room_id, event_type):
return self.on_GET(request, room_id, event_type, "")
def on_PUT_no_state_key(self, request, room_id, event_type):
return self.on_PUT(request, room_id, event_type, "")
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@defer.inlineCallbacks
def on_GET(self, request, room_id, event_type, state_key):
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user = yield self.auth.get_user_by_req(request)
msg_handler = self.handlers.message_handler
data = yield msg_handler.get_room_data(
user_id=user.to_string(),
room_id=urllib.unquote(room_id),
event_type=urllib.unquote(event_type),
state_key=urllib.unquote(state_key),
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)
if not data:
raise SynapseError(404, "Event not found.", errcode=Codes.NOT_FOUND)
defer.returnValue((200, data[0].get_dict()["content"]))
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@defer.inlineCallbacks
def on_PUT(self, request, room_id, event_type, state_key):
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user = yield self.auth.get_user_by_req(request)
event_type = urllib.unquote(event_type)
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content = _parse_json(request)
event = self.event_factory.create_event(
etype=event_type,
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content=content,
room_id=urllib.unquote(room_id),
user_id=user.to_string(),
state_key=urllib.unquote(state_key)
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)
if event_type == RoomMemberEvent.TYPE:
# membership events are special
handler = self.handlers.room_member_handler
yield handler.change_membership(event)
defer.returnValue((200, {}))
else:
# store random bits of state
msg_handler = self.handlers.message_handler
yield msg_handler.store_room_data(
event=event
)
defer.returnValue((200, {}))
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# TODO: Needs unit testing for generic events + feedback
class RoomSendEventRestServlet(RestServlet):
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def register(self, http_server):
# /rooms/$roomid/send/$event_type[/$txn_id]
PATTERN = ("/rooms/(?P<room_id>[^/]*)/send/(?P<event_type>[^/]*)")
register_txn_path(self, PATTERN, http_server, with_get=True)
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@defer.inlineCallbacks
def on_POST(self, request, room_id, event_type):
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user = yield self.auth.get_user_by_req(request)
content = _parse_json(request)
event = self.event_factory.create_event(
etype=event_type,
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room_id=urllib.unquote(room_id),
user_id=user.to_string(),
content=content
)
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msg_handler = self.handlers.message_handler
yield msg_handler.send_message(event)
defer.returnValue((200, {"event_id": event.event_id}))
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def on_GET(self, request, room_id, event_type, txn_id):
return (200, "Not implemented")
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@defer.inlineCallbacks
def on_PUT(self, request, room_id, event_type, txn_id):
try:
defer.returnValue(self.txns.get_client_transaction(request, txn_id))
except KeyError:
pass
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response = yield self.on_POST(request, room_id, event_type)
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self.txns.store_client_transaction(request, txn_id, response)
defer.returnValue(response)
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# TODO: Needs unit testing for room ID + alias joins
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class JoinRoomAliasServlet(RestServlet):
def register(self, http_server):
# /join/$room_identifier[/$txn_id]
PATTERN = ("/join/(?P<room_identifier>[^/]*)")
register_txn_path(self, PATTERN, http_server)
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@defer.inlineCallbacks
def on_POST(self, request, room_identifier):
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user = yield self.auth.get_user_by_req(request)
# the identifier could be a room alias or a room id. Try one then the
# other if it fails to parse, without swallowing other valid
# SynapseErrors.
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identifier = None
is_room_alias = False
try:
identifier = self.hs.parse_roomalias(
urllib.unquote(room_identifier)
)
is_room_alias = True
except SynapseError:
identifier = self.hs.parse_roomid(
urllib.unquote(room_identifier)
)
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# TODO: Support for specifying the home server to join with?
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if is_room_alias:
handler = self.handlers.room_member_handler
ret_dict = yield handler.join_room_alias(user, identifier)
defer.returnValue((200, ret_dict))
else: # room id
event = self.event_factory.create_event(
etype=RoomMemberEvent.TYPE,
content={"membership": Membership.JOIN},
room_id=urllib.unquote(identifier.to_string()),
user_id=user.to_string(),
state_key=user.to_string()
)
handler = self.handlers.room_member_handler
yield handler.change_membership(event)
defer.returnValue((200, {}))
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@defer.inlineCallbacks
def on_PUT(self, request, room_identifier, txn_id):
try:
defer.returnValue(self.txns.get_client_transaction(request, txn_id))
except KeyError:
pass
response = yield self.on_POST(request, room_identifier)
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self.txns.store_client_transaction(request, txn_id, response)
defer.returnValue(response)
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# TODO: Needs unit testing
class PublicRoomListRestServlet(RestServlet):
PATTERN = client_path_pattern("/publicRooms$")
@defer.inlineCallbacks
def on_GET(self, request):
handler = self.handlers.room_list_handler
data = yield handler.get_public_room_list()
defer.returnValue((200, data))
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# TODO: Needs unit testing
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class RoomMemberListRestServlet(RestServlet):
PATTERN = client_path_pattern("/rooms/(?P<room_id>[^/]*)/members$")
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@defer.inlineCallbacks
def on_GET(self, request, room_id):
# TODO support Pagination stream API (limit/tokens)
user = yield self.auth.get_user_by_req(request)
handler = self.handlers.room_member_handler
members = yield handler.get_room_members_as_pagination_chunk(
room_id=urllib.unquote(room_id),
user_id=user.to_string())
for event in members["chunk"]:
# FIXME: should probably be state_key here, not user_id
target_user = self.hs.parse_userid(event["user_id"])
# Presence is an optional cache; don't fail if we can't fetch it
try:
presence_state = yield self.handlers.presence_handler.get_state(
target_user=target_user, auth_user=user
)
event["content"].update(presence_state)
except:
pass
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defer.returnValue((200, members))
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# TODO: Needs unit testing
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class RoomMessageListRestServlet(RestServlet):
PATTERN = client_path_pattern("/rooms/(?P<room_id>[^/]*)/messages$")
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@defer.inlineCallbacks
def on_GET(self, request, room_id):
user = yield self.auth.get_user_by_req(request)
pagination_config = PaginationConfig.from_request(request)
with_feedback = "feedback" in request.args
handler = self.handlers.message_handler
msgs = yield handler.get_messages(
room_id=urllib.unquote(room_id),
user_id=user.to_string(),
pagin_config=pagination_config,
feedback=with_feedback)
defer.returnValue((200, msgs))
# TODO: Needs unit testing
class RoomStateRestServlet(RestServlet):
PATTERN = client_path_pattern("/rooms/(?P<room_id>[^/]*)/state$")
@defer.inlineCallbacks
def on_GET(self, request, room_id):
user = yield self.auth.get_user_by_req(request)
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handler = self.handlers.message_handler
# Get all the current state for this room
events = yield handler.get_state_events(
room_id=urllib.unquote(room_id),
user_id=user.to_string(),
)
defer.returnValue((200, events))
# TODO: Needs unit testing
class RoomInitialSyncRestServlet(RestServlet):
PATTERN = client_path_pattern("/rooms/(?P<room_id>[^/]*)/initialSync$")
@defer.inlineCallbacks
def on_GET(self, request, room_id):
user = yield self.auth.get_user_by_req(request)
# TODO: Get all the initial sync data for this room and return in the
# same format as initial sync, that is:
# {
# membership: join,
# messages: [
# chunk: [ msg events ],
# start: s_tok,
# end: e_tok
# ],
# room_id: foo,
# state: [
# { state event } , { state event }
# ]
# }
# Probably worth keeping the keys room_id and membership for parity with
# /initialSync even though they must be joined to sync this and know the
# room ID, so clients can reuse the same code (room_id and membership
# are MANDATORY for /initialSync, so the code will expect it to be
# there)
defer.returnValue((200, {}))
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class RoomTriggerBackfill(RestServlet):
PATTERN = client_path_pattern("/rooms/(?P<room_id>[^/]*)/backfill$")
@defer.inlineCallbacks
def on_GET(self, request, room_id):
remote_server = urllib.unquote(request.args["remote"][0])
room_id = urllib.unquote(room_id)
limit = int(request.args["limit"][0])
handler = self.handlers.federation_handler
events = yield handler.backfill(remote_server, room_id, limit)
res = [self.hs.serialize_event(event) for event in events]
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defer.returnValue((200, res))
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# TODO: Needs unit testing
class RoomMembershipRestServlet(RestServlet):
def register(self, http_server):
# /rooms/$roomid/[invite|join|leave]
PATTERN = ("/rooms/(?P<room_id>[^/]*)/" +
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"(?P<membership_action>join|invite|leave|ban|kick)")
register_txn_path(self, PATTERN, http_server)
@defer.inlineCallbacks
def on_POST(self, request, room_id, membership_action):
user = yield self.auth.get_user_by_req(request)
content = _parse_json(request)
# target user is you unless it is an invite
state_key = user.to_string()
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if membership_action in ["invite", "ban", "kick"]:
if "user_id" not in content:
raise SynapseError(400, "Missing user_id key.")
state_key = content["user_id"]
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if membership_action == "kick":
membership_action = "leave"
event = self.event_factory.create_event(
etype=RoomMemberEvent.TYPE,
content={"membership": unicode(membership_action)},
room_id=urllib.unquote(room_id),
user_id=user.to_string(),
state_key=state_key
)
handler = self.handlers.room_member_handler
yield handler.change_membership(event)
defer.returnValue((200, {}))
@defer.inlineCallbacks
def on_PUT(self, request, room_id, membership_action, txn_id):
try:
defer.returnValue(self.txns.get_client_transaction(request, txn_id))
except KeyError:
pass
response = yield self.on_POST(request, room_id, membership_action)
self.txns.store_client_transaction(request, txn_id, response)
defer.returnValue(response)
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class RoomRedactEventRestServlet(RestServlet):
def register(self, http_server):
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PATTERN = ("/rooms/(?P<room_id>[^/]*)/redact/(?P<event_id>[^/]*)")
register_txn_path(self, PATTERN, http_server)
@defer.inlineCallbacks
def on_POST(self, request, room_id, event_id):
user = yield self.auth.get_user_by_req(request)
content = _parse_json(request)
event = self.event_factory.create_event(
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etype=RoomRedactionEvent.TYPE,
room_id=urllib.unquote(room_id),
user_id=user.to_string(),
content=content,
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redacts=event_id,
)
msg_handler = self.handlers.message_handler
yield msg_handler.send_message(event)
defer.returnValue((200, {"event_id": event.event_id}))
@defer.inlineCallbacks
def on_PUT(self, request, room_id, event_id, txn_id):
try:
defer.returnValue(self.txns.get_client_transaction(request, txn_id))
except KeyError:
pass
response = yield self.on_POST(request, room_id, event_id)
self.txns.store_client_transaction(request, txn_id, response)
defer.returnValue(response)
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def _parse_json(request):
try:
content = json.loads(request.content.read())
if type(content) != dict:
raise SynapseError(400, "Content must be a JSON object.",
errcode=Codes.NOT_JSON)
return content
except ValueError:
raise SynapseError(400, "Content not JSON.", errcode=Codes.NOT_JSON)
def register_txn_path(servlet, regex_string, http_server, with_get=False):
"""Registers a transaction-based path.
This registers two paths:
PUT regex_string/$txnid
POST regex_string
Args:
regex_string (str): The regex string to register. Must NOT have a
trailing $ as this string will be appended to.
http_server : The http_server to register paths with.
with_get: True to also register respective GET paths for the PUTs.
"""
http_server.register_path(
"POST",
client_path_pattern(regex_string + "$"),
servlet.on_POST
)
http_server.register_path(
"PUT",
client_path_pattern(regex_string + "/(?P<txn_id>[^/]*)$"),
servlet.on_PUT
)
if with_get:
http_server.register_path(
"GET",
client_path_pattern(regex_string + "/(?P<txn_id>[^/]*)$"),
servlet.on_GET
)
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def register_servlets(hs, http_server):
RoomStateEventRestServlet(hs).register(http_server)
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RoomCreateRestServlet(hs).register(http_server)
RoomMemberListRestServlet(hs).register(http_server)
RoomMessageListRestServlet(hs).register(http_server)
JoinRoomAliasServlet(hs).register(http_server)
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RoomTriggerBackfill(hs).register(http_server)
RoomMembershipRestServlet(hs).register(http_server)
RoomSendEventRestServlet(hs).register(http_server)
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PublicRoomListRestServlet(hs).register(http_server)
RoomStateRestServlet(hs).register(http_server)
RoomInitialSyncRestServlet(hs).register(http_server)
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RoomRedactEventRestServlet(hs).register(http_server)