forked-synapse/synapse/handlers/devicemessage.py
Jorik Schellekens 1d65292e94 Link the send loop with the edus contexts
The contexts were being filtered too early so  the send loop wasn't
being linked to them unless the destination
was whitelisted.
2019-09-05 14:42:37 +01:00

140 lines
5.0 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from canonicaljson import json
from twisted.internet import defer
from synapse.api.errors import SynapseError
from synapse.logging.opentracing import (
get_active_span_text_map,
log_kv,
set_tag,
start_active_span,
)
from synapse.types import UserID, get_domain_from_id
from synapse.util.stringutils import random_string
logger = logging.getLogger(__name__)
class DeviceMessageHandler(object):
def __init__(self, hs):
"""
Args:
hs (synapse.server.HomeServer): server
"""
self.store = hs.get_datastore()
self.notifier = hs.get_notifier()
self.is_mine = hs.is_mine
self.federation = hs.get_federation_sender()
hs.get_federation_registry().register_edu_handler(
"m.direct_to_device", self.on_direct_to_device_edu
)
@defer.inlineCallbacks
def on_direct_to_device_edu(self, origin, content):
local_messages = {}
sender_user_id = content["sender"]
if origin != get_domain_from_id(sender_user_id):
logger.warn(
"Dropping device message from %r with spoofed sender %r",
origin,
sender_user_id,
)
message_type = content["type"]
message_id = content["message_id"]
for user_id, by_device in content["messages"].items():
# we use UserID.from_string to catch invalid user ids
if not self.is_mine(UserID.from_string(user_id)):
logger.warning("Request for keys for non-local user %s", user_id)
raise SynapseError(400, "Not a user here")
messages_by_device = {
device_id: {
"content": message_content,
"type": message_type,
"sender": sender_user_id,
}
for device_id, message_content in by_device.items()
}
if messages_by_device:
local_messages[user_id] = messages_by_device
stream_id = yield self.store.add_messages_from_remote_to_device_inbox(
origin, message_id, local_messages
)
self.notifier.on_new_event(
"to_device_key", stream_id, users=local_messages.keys()
)
@defer.inlineCallbacks
def send_device_message(self, sender_user_id, message_type, messages):
set_tag("number_of_messages", len(messages))
set_tag("sender", sender_user_id)
local_messages = {}
remote_messages = {}
for user_id, by_device in messages.items():
# we use UserID.from_string to catch invalid user ids
if self.is_mine(UserID.from_string(user_id)):
messages_by_device = {
device_id: {
"content": message_content,
"type": message_type,
"sender": sender_user_id,
}
for device_id, message_content in by_device.items()
}
if messages_by_device:
local_messages[user_id] = messages_by_device
else:
destination = get_domain_from_id(user_id)
remote_messages.setdefault(destination, {})[user_id] = by_device
message_id = random_string(16)
context = get_active_span_text_map()
remote_edu_contents = {}
for destination, messages in remote_messages.items():
with start_active_span("to_device_for_user"):
set_tag("destination", destination)
remote_edu_contents[destination] = {
"messages": messages,
"sender": sender_user_id,
"type": message_type,
"message_id": message_id,
"org.matrix.opentracing_context": json.dumps(context),
}
log_kv({"local_messages": local_messages})
stream_id = yield self.store.add_messages_to_device_inbox(
local_messages, remote_edu_contents
)
self.notifier.on_new_event(
"to_device_key", stream_id, users=local_messages.keys()
)
log_kv({"remote_messages": remote_messages})
for destination in remote_messages.keys():
# Enqueue a new federation transaction to send the new
# device messages to each remote destination.
self.federation.send_device_messages(destination)