MatrixSynapse/synapse/server.py

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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 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 file provides some classes for setting up (partially-populated)
# homeservers; either as a full homeserver as a real application, or a small
# partial one for unit test mocking.
# Imports required for the default HomeServer() implementation
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import logging
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from twisted.enterprise import adbapi
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from twisted.web.client import BrowserLikePolicyForHTTPS
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from synapse.api.auth import Auth
from synapse.api.filtering import Filtering
from synapse.api.ratelimiting import Ratelimiter
from synapse.appservice.api import ApplicationServiceApi
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from synapse.appservice.scheduler import ApplicationServiceScheduler
from synapse.crypto.keyring import Keyring
from synapse.events.builder import EventBuilderFactory
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from synapse.federation import initialize_http_replication
from synapse.handlers import Handlers
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from synapse.handlers.appservice import ApplicationServicesHandler
from synapse.handlers.auth import AuthHandler
from synapse.handlers.device import DeviceHandler
from synapse.handlers.e2e_keys import E2eKeysHandler
from synapse.handlers.presence import PresenceHandler
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from synapse.handlers.room import RoomListHandler
from synapse.handlers.sync import SyncHandler
from synapse.handlers.typing import TypingHandler
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from synapse.handlers.events import EventHandler, EventStreamHandler
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from synapse.http.client import SimpleHttpClient, InsecureInterceptableContextFactory
from synapse.http.matrixfederationclient import MatrixFederationHttpClient
from synapse.notifier import Notifier
from synapse.push.pusherpool import PusherPool
from synapse.rest.media.v1.media_repository import MediaRepository
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from synapse.state import StateHandler
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from synapse.storage import DataStore
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from synapse.streams.events import EventSources
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from synapse.util import Clock
from synapse.util.distributor import Distributor
logger = logging.getLogger(__name__)
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class HomeServer(object):
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"""A basic homeserver object without lazy component builders.
This will need all of the components it requires to either be passed as
constructor arguments, or the relevant methods overriding to create them.
Typically this would only be used for unit tests.
For every dependency in the DEPENDENCIES list below, this class creates one
method,
def get_DEPENDENCY(self)
which returns the value of that dependency. If no value has yet been set
nor was provided to the constructor, it will attempt to call a lazy builder
method called
def build_DEPENDENCY(self)
which must be implemented by the subclass. This code may call any of the
required "get" methods on the instance to obtain the sub-dependencies that
one requires.
"""
DEPENDENCIES = [
'config',
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'clock',
'http_client',
'db_pool',
'persistence_service',
'replication_layer',
'datastore',
'handlers',
'v1auth',
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'auth',
'rest_servlet_factory',
'state_handler',
'presence_handler',
'sync_handler',
'typing_handler',
'room_list_handler',
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'auth_handler',
'device_handler',
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'e2e_keys_handler',
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'event_handler',
'event_stream_handler',
'application_service_api',
'application_service_scheduler',
'application_service_handler',
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'notifier',
'distributor',
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'client_resource',
'resource_for_federation',
'resource_for_static_content',
'resource_for_web_client',
'resource_for_content_repo',
'resource_for_server_key',
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'resource_for_server_key_v2',
'resource_for_media_repository',
'resource_for_metrics',
'event_sources',
'ratelimiter',
'keyring',
'pusherpool',
'event_builder_factory',
'filtering',
'http_client_context_factory',
'simple_http_client',
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'media_repository',
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]
def __init__(self, hostname, **kwargs):
"""
Args:
hostname : The hostname for the server.
"""
self.hostname = hostname
self._building = {}
self.clock = Clock()
self.distributor = Distributor()
self.ratelimiter = Ratelimiter()
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# Other kwargs are explicit dependencies
for depname in kwargs:
setattr(self, depname, kwargs[depname])
def setup(self):
logger.info("Setting up.")
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self.datastore = DataStore(self.get_db_conn(), self)
logger.info("Finished setting up.")
def get_ip_from_request(self, request):
# X-Forwarded-For is handled by our custom request type.
return request.getClientIP()
def is_mine(self, domain_specific_string):
return domain_specific_string.domain == self.hostname
def is_mine_id(self, string):
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return string.split(":", 1)[1] == self.hostname
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def build_replication_layer(self):
return initialize_http_replication(self)
def build_handlers(self):
return Handlers(self)
def build_notifier(self):
return Notifier(self)
def build_auth(self):
return Auth(self)
def build_http_client_context_factory(self):
return (
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InsecureInterceptableContextFactory()
if self.config.use_insecure_ssl_client_just_for_testing_do_not_use
else BrowserLikePolicyForHTTPS()
)
def build_simple_http_client(self):
return SimpleHttpClient(self)
def build_v1auth(self):
orf = Auth(self)
# Matrix spec makes no reference to what HTTP status code is returned,
# but the V1 API uses 403 where it means 401, and the webclient
# relies on this behaviour, so V1 gets its own copy of the auth
# with backwards compat behaviour.
orf.TOKEN_NOT_FOUND_HTTP_STATUS = 403
return orf
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def build_state_handler(self):
return StateHandler(self)
def build_presence_handler(self):
return PresenceHandler(self)
def build_typing_handler(self):
return TypingHandler(self)
def build_sync_handler(self):
return SyncHandler(self)
def build_room_list_handler(self):
return RoomListHandler(self)
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def build_auth_handler(self):
return AuthHandler(self)
def build_device_handler(self):
return DeviceHandler(self)
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def build_e2e_keys_handler(self):
return E2eKeysHandler(self)
def build_application_service_api(self):
return ApplicationServiceApi(self)
def build_application_service_scheduler(self):
return ApplicationServiceScheduler(self)
def build_application_service_handler(self):
return ApplicationServicesHandler(self)
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def build_event_handler(self):
return EventHandler(self)
def build_event_stream_handler(self):
return EventStreamHandler(self)
def build_event_sources(self):
return EventSources(self)
def build_keyring(self):
return Keyring(self)
def build_event_builder_factory(self):
return EventBuilderFactory(
clock=self.get_clock(),
hostname=self.hostname,
)
def build_filtering(self):
return Filtering(self)
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def build_pusherpool(self):
return PusherPool(self)
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def build_http_client(self):
return MatrixFederationHttpClient(self)
def build_db_pool(self):
name = self.db_config["name"]
return adbapi.ConnectionPool(
name,
**self.db_config.get("args", {})
)
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def build_media_repository(self):
return MediaRepository(self)
def remove_pusher(self, app_id, push_key, user_id):
return self.get_pusherpool().remove_pusher(app_id, push_key, user_id)
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def _make_dependency_method(depname):
def _get(hs):
try:
return getattr(hs, depname)
except AttributeError:
pass
try:
builder = getattr(hs, "build_%s" % (depname))
except AttributeError:
builder = None
if builder:
# Prevent cyclic dependencies from deadlocking
if depname in hs._building:
raise ValueError("Cyclic dependency while building %s" % (
depname,
))
hs._building[depname] = 1
dep = builder()
setattr(hs, depname, dep)
del hs._building[depname]
return dep
raise NotImplementedError(
"%s has no %s nor a builder for it" % (
type(hs).__name__, depname,
)
)
setattr(HomeServer, "get_%s" % (depname), _get)
# Build magic accessors for every dependency
for depname in HomeServer.DEPENDENCIES:
_make_dependency_method(depname)