#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2019 New Vector 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.
from __future__ import print_function
import gc
import logging
import math
import os
import resource
import sys
from typing import Iterable
from prometheus_client import Gauge
from twisted.application import service
from twisted.internet import defer, reactor
from twisted.python.failure import Failure
from twisted.web.resource import EncodingResourceWrapper, IResource
from twisted.web.server import GzipEncoderFactory
from twisted.web.static import File
import synapse
import synapse.config.logger
from synapse import events
from synapse.api.urls import (
FEDERATION_PREFIX,
LEGACY_MEDIA_PREFIX,
MEDIA_PREFIX,
SERVER_KEY_V2_PREFIX,
STATIC_PREFIX,
WEB_CLIENT_PREFIX,
)
from synapse.app import _base
from synapse.app._base import listen_ssl, listen_tcp, quit_with_error
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.config.server import ListenerConfig
from synapse.federation.transport.server import TransportLayerServer
from synapse.http.additional_resource import AdditionalResource
from synapse.http.server import (
OptionsResource,
RootOptionsRedirectResource,
RootRedirect,
StaticResource,
)
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.module_api import ModuleApi
from synapse.python_dependencies import check_requirements
from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from synapse.rest import ClientRestResource
from synapse.rest.admin import AdminRestResource
from synapse.rest.health import HealthResource
from synapse.rest.key.v2 import KeyApiV2Resource
from synapse.rest.well_known import WellKnownResource
from synapse.server import HomeServer
from synapse.storage import DataStore
from synapse.storage.engines import IncorrectDatabaseSetup
from synapse.storage.prepare_database import UpgradeDatabaseException
from synapse.util.httpresourcetree import create_resource_tree
from synapse.util.manhole import manhole
from synapse.util.module_loader import load_module
from synapse.util.rlimit import change_resource_limit
from synapse.util.versionstring import get_version_string
logger = logging.getLogger("synapse.app.homeserver")
def gz_wrap(r):
return EncodingResourceWrapper(r, [GzipEncoderFactory()])
class SynapseHomeServer(HomeServer):
DATASTORE_CLASS = DataStore
def _listener_http(self, config: HomeServerConfig, listener_config: ListenerConfig):
port = listener_config.port
bind_addresses = listener_config.bind_addresses
tls = listener_config.tls
site_tag = listener_config.http_options.tag
if site_tag is None:
site_tag = port
# We always include a health resource.
resources = {"/health": HealthResource()}
for res in listener_config.http_options.resources:
for name in res.names:
if name == "openid" and "federation" in res.names:
# Skip loading openid resource if federation is defined
# since federation resource will include openid
continue
resources.update(self._configure_named_resource(name, res.compress))
additional_resources = listener_config.http_options.additional_resources
logger.debug("Configuring additional resources: %r", additional_resources)
module_api = ModuleApi(self, self.get_auth_handler())
for path, resmodule in additional_resources.items():
handler_cls, config = load_module(resmodule)
handler = handler_cls(config, module_api)
if IResource.providedBy(handler):
resource = handler
elif hasattr(handler, "handle_request"):
resource = AdditionalResource(self, handler.handle_request)
else:
raise ConfigError(
"additional_resource %s does not implement a known interface"
% (resmodule["module"],)
)
resources[path] = resource
# try to find something useful to redirect '/' to
if WEB_CLIENT_PREFIX in resources:
root_resource = RootOptionsRedirectResource(WEB_CLIENT_PREFIX)
elif STATIC_PREFIX in resources:
root_resource = RootOptionsRedirectResource(STATIC_PREFIX)
else:
root_resource = OptionsResource()
root_resource = create_resource_tree(resources, root_resource)
if tls:
ports = listen_ssl(
bind_addresses,
port,
SynapseSite(
"synapse.access.https.%s" % (site_tag,),
site_tag,
listener_config,
root_resource,
self.version_string,
),
self.tls_server_context_factory,
reactor=self.get_reactor(),
)
logger.info("Synapse now listening on TCP port %d (TLS)", port)
else:
ports = listen_tcp(
bind_addresses,
port,
SynapseSite(
"synapse.access.http.%s" % (site_tag,),
site_tag,
listener_config,
root_resource,
self.version_string,
),
reactor=self.get_reactor(),
)
logger.info("Synapse now listening on TCP port %d", port)
return ports
def _configure_named_resource(self, name, compress=False):
"""Build a resource map for a named resource
Args:
name (str): named resource: one of "client", "federation", etc
compress (bool): whether to enable gzip compression for this
resource
Returns:
dict[str, Resource]: map from path to HTTP resource
"""
resources = {}
if name == "client":
client_resource = ClientRestResource(self)
if compress:
client_resource = gz_wrap(client_resource)
resources.update(
{
"/_matrix/client/api/v1": client_resource,
"/_matrix/client/r0": client_resource,
"/_matrix/client/unstable": client_resource,
"/_matrix/client/v2_alpha": client_resource,
"/_matrix/client/versions": client_resource,
"/.well-known/matrix/client": WellKnownResource(self),
"/_synapse/admin": AdminRestResource(self),
}
)
if self.get_config().oidc_enabled:
from synapse.rest.oidc import OIDCResource
resources["/_synapse/oidc"] = OIDCResource(self)
if self.get_config().saml2_enabled:
from synapse.rest.saml2 import SAML2Resource
resources["/_matrix/saml2"] = SAML2Resource(self)
if name == "consent":
from synapse.rest.consent.consent_resource import ConsentResource
consent_resource = ConsentResource(self)
if compress:
consent_resource = gz_wrap(consent_resource)
resources.update({"/_matrix/consent": consent_resource})
if name == "federation":
resources.update({FEDERATION_PREFIX: TransportLayerServer(self)})
if name == "openid":
resources.update(
{
FEDERATION_PREFIX: TransportLayerServer(
self, servlet_groups=["openid"]
)
}
)
if name in ["static", "client"]:
resources.update(
{
STATIC_PREFIX: StaticResource(
os.path.join(os.path.dirname(synapse.__file__), "static")
)
}
)
if name in ["media", "federation", "client"]:
if self.get_config().enable_media_repo:
media_repo = self.get_media_repository_resource()
resources.update(
{MEDIA_PREFIX: media_repo, LEGACY_MEDIA_PREFIX: media_repo}
)
elif name == "media":
raise ConfigError(
"'media' resource conflicts with enable_media_repo=False"
)
if name in ["keys", "federation"]:
resources[SERVER_KEY_V2_PREFIX] = KeyApiV2Resource(self)
if name == "webclient":
webclient_loc = self.get_config().web_client_location
if webclient_loc is None:
logger.warning(
"Not enabling webclient resource, as web_client_location is unset."
)
elif webclient_loc.startswith("http://") or webclient_loc.startswith(
"https://"
):
resources[WEB_CLIENT_PREFIX] = RootRedirect(webclient_loc)
else:
logger.warning(
"Running webclient on the same domain is not recommended: "
"https://github.com/matrix-org/synapse#security-note - "
"after you move webclient to different host you can set "
"web_client_location to its full URL to enable redirection."
)
# GZip is disabled here due to
# https://twistedmatrix.com/trac/ticket/7678
resources[WEB_CLIENT_PREFIX] = File(webclient_loc)
if name == "metrics" and self.get_config().enable_metrics:
resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)
if name == "replication":
resources[REPLICATION_PREFIX] = ReplicationRestResource(self)
return resources
def start_listening(self, listeners: Iterable[ListenerConfig]):
config = self.get_config()
if config.redis_enabled:
# If redis is enabled we connect via the replication command handler
# in the same way as the workers (since we're effectively a client
# rather than a server).
self.get_tcp_replication().start_replication(self)
for listener in listeners:
if listener.type == "http":
self._listening_services.extend(self._listener_http(config, listener))
elif listener.type == "manhole":
listen_tcp(
listener.bind_addresses,
listener.port,
manhole(
username="matrix", password="rabbithole", globals={"hs": self}
),
)
elif listener.type == "replication":
services = listen_tcp(
listener.bind_addresses,
listener.port,
ReplicationStreamProtocolFactory(self),
)
for s in services:
reactor.addSystemEventTrigger("before", "shutdown", s.stopListening)
elif listener.type == "metrics":
if not self.get_config().enable_metrics:
logger.warning(
(
"Metrics listener configured, but "
"enable_metrics is not True!"
)
)
else:
_base.listen_metrics(listener.bind_addresses, listener.port)
else:
# this shouldn't happen, as the listener type should have been checked
# during parsing
logger.warning("Unrecognized listener type: %s", listener.type)
# Gauges to expose monthly active user control metrics
current_mau_gauge = Gauge("synapse_admin_mau:current", "Current MAU")
current_mau_by_service_gauge = Gauge(
"synapse_admin_mau_current_mau_by_service",
"Current MAU by service",
["app_service"],
)
max_mau_gauge = Gauge("synapse_admin_mau:max", "MAU Limit")
registered_reserved_users_mau_gauge = Gauge(
"synapse_admin_mau:registered_reserved_users",
"Registered users with reserved threepids",
)
def setup(config_options):
"""
Args:
config_options_options: The options passed to Synapse. Usually
`sys.argv[1:]`.
Returns:
HomeServer
"""
try:
config = HomeServerConfig.load_or_generate_config(
"Synapse Homeserver", config_options
)
except ConfigError as e:
sys.stderr.write("\nERROR: %s\n" % (e,))
sys.exit(1)
if not config:
# If a config isn't returned, and an exception isn't raised, we're just
# generating config files and shouldn't try to continue.
sys.exit(0)
events.USE_FROZEN_DICTS = config.use_frozen_dicts
hs = SynapseHomeServer(
config.server_name,
config=config,
version_string="Synapse/" + get_version_string(synapse),
)
synapse.config.logger.setup_logging(hs, config, use_worker_options=False)
logger.info("Setting up server")
try:
hs.setup()
except IncorrectDatabaseSetup as e:
quit_with_error(str(e))
except UpgradeDatabaseException as e:
quit_with_error("Failed to upgrade database: %s" % (e,))
hs.setup_master()
async def do_acme() -> bool:
"""
Reprovision an ACME certificate, if it's required.
Returns:
Whether the cert has been updated.
"""
acme = hs.get_acme_handler()
# Check how long the certificate is active for.
cert_days_remaining = hs.config.is_disk_cert_valid(allow_self_signed=False)
# We want to reprovision if cert_days_remaining is None (meaning no
# certificate exists), or the days remaining number it returns
# is less than our re-registration threshold.
provision = False
if (
cert_days_remaining is None
or cert_days_remaining < hs.config.acme_reprovision_threshold
):
provision = True
if provision:
await acme.provision_certificate()
return provision
async def reprovision_acme():
"""
Provision a certificate from ACME, if required, and reload the TLS
certificate if it's renewed.
"""
reprovisioned = await do_acme()
if reprovisioned:
_base.refresh_certificate(hs)
async def start():
try:
# Run the ACME provisioning code, if it's enabled.
if hs.config.acme_enabled:
acme = hs.get_acme_handler()
# Start up the webservices which we will respond to ACME
# challenges with, and then provision.
await acme.start_listening()
await do_acme()
# Check if it needs to be reprovisioned every day.
hs.get_clock().looping_call(reprovision_acme, 24 * 60 * 60 * 1000)
# Load the OIDC provider metadatas, if OIDC is enabled.
if hs.config.oidc_enabled:
oidc = hs.get_oidc_handler()
# Loading the provider metadata also ensures the provider config is valid.
await oidc.load_metadata()
await oidc.load_jwks()
_base.start(hs, config.listeners)
hs.get_datastore().db_pool.updates.start_doing_background_updates()
except Exception:
# Print the exception and bail out.
print("Error during startup:", file=sys.stderr)
# this gives better tracebacks than traceback.print_exc()
Failure().printTraceback(file=sys.stderr)
if reactor.running:
reactor.stop()
sys.exit(1)
reactor.callWhenRunning(lambda: defer.ensureDeferred(start()))
return hs
class SynapseService(service.Service):
"""
A twisted Service class that will start synapse. Used to run synapse
via twistd and a .tac.
"""
def __init__(self, config):
self.config = config
def startService(self):
hs = setup(self.config)
change_resource_limit(hs.config.soft_file_limit)
if hs.config.gc_thresholds:
gc.set_threshold(*hs.config.gc_thresholds)
def stopService(self):
return self._port.stopListening()
# Contains the list of processes we will be monitoring
# currently either 0 or 1
_stats_process = []
async def phone_stats_home(hs, stats, stats_process=_stats_process):
logger.info("Gathering stats for reporting")
now = int(hs.get_clock().time())
uptime = int(now - hs.start_time)
if uptime < 0:
uptime = 0
#
# Performance statistics. Keep this early in the function to maintain reliability of `test_performance_100` test.
#
old = stats_process[0]
new = (now, resource.getrusage(resource.RUSAGE_SELF))
stats_process[0] = new
# Get RSS in bytes
stats["memory_rss"] = new[1].ru_maxrss
# Get CPU time in % of a single core, not % of all cores
used_cpu_time = (new[1].ru_utime + new[1].ru_stime) - (
old[1].ru_utime + old[1].ru_stime
)
if used_cpu_time == 0 or new[0] == old[0]:
stats["cpu_average"] = 0
else:
stats["cpu_average"] = math.floor(used_cpu_time / (new[0] - old[0]) * 100)
#
# General statistics
#
stats["homeserver"] = hs.config.server_name
stats["server_context"] = hs.config.server_context
stats["timestamp"] = now
stats["uptime_seconds"] = uptime
version = sys.version_info
stats["python_version"] = "{}.{}.{}".format(
version.major, version.minor, version.micro
)
stats["total_users"] = await hs.get_datastore().count_all_users()
total_nonbridged_users = await hs.get_datastore().count_nonbridged_users()
stats["total_nonbridged_users"] = total_nonbridged_users
daily_user_type_results = await hs.get_datastore().count_daily_user_type()
for name, count in daily_user_type_results.items():
stats["daily_user_type_" + name] = count
room_count = await hs.get_datastore().get_room_count()
stats["total_room_count"] = room_count
stats["daily_active_users"] = await hs.get_datastore().count_daily_users()
stats["monthly_active_users"] = await hs.get_datastore().count_monthly_users()
stats["daily_active_rooms"] = await hs.get_datastore().count_daily_active_rooms()
stats["daily_messages"] = await hs.get_datastore().count_daily_messages()
r30_results = await hs.get_datastore().count_r30_users()
for name, count in r30_results.items():
stats["r30_users_" + name] = count
daily_sent_messages = await hs.get_datastore().count_daily_sent_messages()
stats["daily_sent_messages"] = daily_sent_messages
stats["cache_factor"] = hs.config.caches.global_factor
stats["event_cache_size"] = hs.config.caches.event_cache_size
#
# Database version
#
# This only reports info about the *main* database.
stats["database_engine"] = hs.get_datastore().db_pool.engine.module.__name__
stats["database_server_version"] = hs.get_datastore().db_pool.engine.server_version
logger.info("Reporting stats to %s: %s" % (hs.config.report_stats_endpoint, stats))
try:
await hs.get_proxied_http_client().put_json(
hs.config.report_stats_endpoint, stats
)
except Exception as e:
logger.warning("Error reporting stats: %s", e)
def run(hs):
PROFILE_SYNAPSE = False
if PROFILE_SYNAPSE:
def profile(func):
from cProfile import Profile
from threading import current_thread
def profiled(*args, **kargs):
profile = Profile()
profile.enable()
func(*args, **kargs)
profile.disable()
ident = current_thread().ident
profile.dump_stats(
"/tmp/%s.%s.%i.pstat" % (hs.hostname, func.__name__, ident)
)
return profiled
from twisted.python.threadpool import ThreadPool
ThreadPool._worker = profile(ThreadPool._worker)
reactor.run = profile(reactor.run)
clock = hs.get_clock()
stats = {}
def performance_stats_init():
_stats_process.clear()
_stats_process.append(
(int(hs.get_clock().time()), resource.getrusage(resource.RUSAGE_SELF))
)
def start_phone_stats_home():
return run_as_background_process(
"phone_stats_home", phone_stats_home, hs, stats
)
def generate_user_daily_visit_stats():
return run_as_background_process(
"generate_user_daily_visits", hs.get_datastore().generate_user_daily_visits
)
# Rather than update on per session basis, batch up the requests.
# If you increase the loop period, the accuracy of user_daily_visits
# table will decrease
clock.looping_call(generate_user_daily_visit_stats, 5 * 60 * 1000)
# monthly active user limiting functionality
def reap_monthly_active_users():
return run_as_background_process(
"reap_monthly_active_users", hs.get_datastore().reap_monthly_active_users
)
clock.looping_call(reap_monthly_active_users, 1000 * 60 * 60)
reap_monthly_active_users()
async def generate_monthly_active_users():
current_mau_count = 0
current_mau_count_by_service = {}
reserved_users = ()
store = hs.get_datastore()
if hs.config.limit_usage_by_mau or hs.config.mau_stats_only:
current_mau_count = await store.get_monthly_active_count()
current_mau_count_by_service = (
await store.get_monthly_active_count_by_service()
)
reserved_users = await store.get_registered_reserved_users()
current_mau_gauge.set(float(current_mau_count))
for app_service, count in current_mau_count_by_service.items():
current_mau_by_service_gauge.labels(app_service).set(float(count))
registered_reserved_users_mau_gauge.set(float(len(reserved_users)))
max_mau_gauge.set(float(hs.config.max_mau_value))
def start_generate_monthly_active_users():
return run_as_background_process(
"generate_monthly_active_users", generate_monthly_active_users
)
start_generate_monthly_active_users()
if hs.config.limit_usage_by_mau or hs.config.mau_stats_only:
clock.looping_call(start_generate_monthly_active_users, 5 * 60 * 1000)
# End of monthly active user settings
if hs.config.report_stats:
logger.info("Scheduling stats reporting for 3 hour intervals")
clock.looping_call(start_phone_stats_home, 3 * 60 * 60 * 1000)
# We need to defer this init for the cases that we daemonize
# otherwise the process ID we get is that of the non-daemon process
clock.call_later(0, performance_stats_init)
# We wait 5 minutes to send the first set of stats as the server can
# be quite busy the first few minutes
clock.call_later(5 * 60, start_phone_stats_home)
_base.start_reactor(
"synapse-homeserver",
soft_file_limit=hs.config.soft_file_limit,
gc_thresholds=hs.config.gc_thresholds,
pid_file=hs.config.pid_file,
daemonize=hs.config.daemonize,
print_pidfile=hs.config.print_pidfile,
logger=logger,
)
def main():
with LoggingContext("main"):
# check base requirements
check_requirements()
hs = setup(sys.argv[1:])
run(hs)
if __name__ == "__main__":
main()