mirror of
https://git.anonymousland.org/anonymousland/synapse.git
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346 lines
10 KiB
Python
346 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 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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from twisted.internet import defer
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from synapse.api.constants import Membership
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from synapse.api.urls import FEDERATION_PREFIX as PREFIX
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from synapse.util.logutils import log_function
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import logging
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logger = logging.getLogger(__name__)
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class TransportLayerClient(object):
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"""Sends federation HTTP requests to other servers"""
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@log_function
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def get_room_state(self, destination, room_id, event_id):
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""" Requests all state for a given room from the given server at the
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given event.
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Args:
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destination (str): The host name of the remote home server we want
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to get the state from.
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context (str): The name of the context we want the state of
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event_id (str): The event we want the context at.
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Returns:
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Deferred: Results in a dict received from the remote homeserver.
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"""
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logger.debug("get_room_state dest=%s, room=%s",
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destination, room_id)
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path = PREFIX + "/state/%s/" % room_id
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return self.client.get_json(
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destination, path=path, args={"event_id": event_id},
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)
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@log_function
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def get_event(self, destination, event_id, timeout=None):
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""" Requests the pdu with give id and origin from the given server.
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Args:
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destination (str): The host name of the remote home server we want
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to get the state from.
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event_id (str): The id of the event being requested.
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timeout (int): How long to try (in ms) the destination for before
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giving up. None indicates no timeout.
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Returns:
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Deferred: Results in a dict received from the remote homeserver.
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"""
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logger.debug("get_pdu dest=%s, event_id=%s",
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destination, event_id)
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path = PREFIX + "/event/%s/" % (event_id, )
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return self.client.get_json(destination, path=path, timeout=timeout)
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@log_function
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def backfill(self, destination, room_id, event_tuples, limit):
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""" Requests `limit` previous PDUs in a given context before list of
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PDUs.
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Args:
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dest (str)
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room_id (str)
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event_tuples (list)
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limt (int)
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Returns:
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Deferred: Results in a dict received from the remote homeserver.
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"""
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logger.debug(
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"backfill dest=%s, room_id=%s, event_tuples=%s, limit=%s",
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destination, room_id, repr(event_tuples), str(limit)
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)
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if not event_tuples:
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# TODO: raise?
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return
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path = PREFIX + "/backfill/%s/" % (room_id,)
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args = {
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"v": event_tuples,
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"limit": [str(limit)],
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}
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return self.client.get_json(
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destination,
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path=path,
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args=args,
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)
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@defer.inlineCallbacks
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@log_function
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def send_transaction(self, transaction, json_data_callback=None):
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""" Sends the given Transaction to its destination
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Args:
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transaction (Transaction)
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Returns:
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Deferred: Results of the deferred is a tuple in the form of
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(response_code, response_body) where the response_body is a
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python dict decoded from json
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"""
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logger.debug(
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"send_data dest=%s, txid=%s",
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transaction.destination, transaction.transaction_id
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)
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if transaction.destination == self.server_name:
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raise RuntimeError("Transport layer cannot send to itself!")
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# FIXME: This is only used by the tests. The actual json sent is
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# generated by the json_data_callback.
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json_data = transaction.get_dict()
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response = yield self.client.put_json(
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transaction.destination,
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path=PREFIX + "/send/%s/" % transaction.transaction_id,
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data=json_data,
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json_data_callback=json_data_callback,
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)
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logger.debug(
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"send_data dest=%s, txid=%s, got response: 200",
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transaction.destination, transaction.transaction_id,
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)
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defer.returnValue(response)
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@defer.inlineCallbacks
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@log_function
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def make_query(self, destination, query_type, args, retry_on_dns_fail):
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path = PREFIX + "/query/%s" % query_type
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content = yield self.client.get_json(
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destination=destination,
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path=path,
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args=args,
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retry_on_dns_fail=retry_on_dns_fail,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def make_membership_event(self, destination, room_id, user_id, membership):
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valid_memberships = {Membership.JOIN, Membership.LEAVE}
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if membership not in valid_memberships:
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raise RuntimeError(
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"make_membership_event called with membership='%s', must be one of %s" %
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(membership, ",".join(valid_memberships))
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)
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path = PREFIX + "/make_%s/%s/%s" % (membership, room_id, user_id)
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content = yield self.client.get_json(
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destination=destination,
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path=path,
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retry_on_dns_fail=True,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def send_join(self, destination, room_id, event_id, content):
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path = PREFIX + "/send_join/%s/%s" % (room_id, event_id)
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response = yield self.client.put_json(
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destination=destination,
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path=path,
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data=content,
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)
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defer.returnValue(response)
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@defer.inlineCallbacks
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@log_function
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def send_leave(self, destination, room_id, event_id, content):
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path = PREFIX + "/send_leave/%s/%s" % (room_id, event_id)
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response = yield self.client.put_json(
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destination=destination,
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path=path,
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data=content,
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)
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defer.returnValue(response)
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@defer.inlineCallbacks
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@log_function
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def send_invite(self, destination, room_id, event_id, content):
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path = PREFIX + "/invite/%s/%s" % (room_id, event_id)
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response = yield self.client.put_json(
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destination=destination,
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path=path,
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data=content,
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)
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defer.returnValue(response)
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@defer.inlineCallbacks
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@log_function
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def exchange_third_party_invite(self, destination, room_id, event_dict):
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path = PREFIX + "/exchange_third_party_invite/%s" % (room_id,)
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response = yield self.client.put_json(
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destination=destination,
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path=path,
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data=event_dict,
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)
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defer.returnValue(response)
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@defer.inlineCallbacks
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@log_function
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def get_event_auth(self, destination, room_id, event_id):
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path = PREFIX + "/event_auth/%s/%s" % (room_id, event_id)
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content = yield self.client.get_json(
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destination=destination,
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path=path,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def send_query_auth(self, destination, room_id, event_id, content):
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path = PREFIX + "/query_auth/%s/%s" % (room_id, event_id)
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content = yield self.client.post_json(
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destination=destination,
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path=path,
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data=content,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def query_client_keys(self, destination, query_content):
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"""Query the device keys for a list of user ids hosted on a remote
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server.
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Request:
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{
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"device_keys": {
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"<user_id>": ["<device_id>"]
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} }
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Response:
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{
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"device_keys": {
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"<user_id>": {
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"<device_id>": {...}
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} } }
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Args:
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destination(str): The server to query.
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query_content(dict): The user ids to query.
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Returns:
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A dict containg the device keys.
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"""
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path = PREFIX + "/user/keys/query"
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content = yield self.client.post_json(
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destination=destination,
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path=path,
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data=query_content,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def claim_client_keys(self, destination, query_content):
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"""Claim one-time keys for a list of devices hosted on a remote server.
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Request:
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{
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"one_time_keys": {
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"<user_id>": {
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"<device_id>": "<algorithm>"
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} } }
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Response:
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{
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"device_keys": {
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"<user_id>": {
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"<device_id>": {
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"<algorithm>:<key_id>": "<key_base64>"
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} } } }
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Args:
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destination(str): The server to query.
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query_content(dict): The user ids to query.
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Returns:
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A dict containg the one-time keys.
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"""
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path = PREFIX + "/user/keys/claim"
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content = yield self.client.post_json(
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destination=destination,
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path=path,
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data=query_content,
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)
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defer.returnValue(content)
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@defer.inlineCallbacks
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@log_function
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def get_missing_events(self, destination, room_id, earliest_events,
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latest_events, limit, min_depth):
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path = PREFIX + "/get_missing_events/%s" % (room_id,)
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content = yield self.client.post_json(
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destination=destination,
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path=path,
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data={
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"limit": int(limit),
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"min_depth": int(min_depth),
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"earliest_events": earliest_events,
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"latest_events": latest_events,
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}
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)
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defer.returnValue(content)
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