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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2014 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.
from synapse.storage import prepare_database
from synapse.server import HomeServer
from twisted.internet import reactor
from twisted.enterprise import adbapi
from twisted.web.resource import Resource
from twisted.web.static import File
from twisted.web.server import Site
from synapse.http.server import JsonResource, RootRedirect
from synapse.http.content_repository import ContentRepoResource
from synapse.http.client import TwistedHttpClient
from synapse.api.urls import (
CLIENT_PREFIX, FEDERATION_PREFIX, WEB_CLIENT_PREFIX, CONTENT_REPO_PREFIX
)
from synapse.config.homeserver import HomeServerConfig
from synapse.crypto import context_factory
from daemonize import Daemonize
import twisted.manhole.telnet
import logging
import os
import re
import sys
logger = logging.getLogger(__name__)
class SynapseHomeServer(HomeServer):
def build_http_client(self):
return TwistedHttpClient(self)
def build_resource_for_client(self):
return JsonResource()
def build_resource_for_federation(self):
return JsonResource()
def build_resource_for_web_client(self):
return File("webclient") # TODO configurable?
def build_resource_for_content_repo(self):
return ContentRepoResource(
self, self.upload_dir, self.auth, self.content_addr
)
def build_db_pool(self):
return adbapi.ConnectionPool(
"sqlite3", self.get_db_name(),
check_same_thread=False,
cp_min=1,
cp_max=1
)
def create_resource_tree(self, web_client, redirect_root_to_web_client):
"""Create the resource tree for this Home Server.
This in unduly complicated because Twisted does not support putting
child resources more than 1 level deep at a time.
Args:
web_client (bool): True to enable the web client.
redirect_root_to_web_client (bool): True to redirect '/' to the
location of the web client. This does nothing if web_client is not
True.
"""
# list containing (path_str, Resource) e.g:
# [ ("/aaa/bbb/cc", Resource1), ("/aaa/dummy", Resource2) ]
desired_tree = [
(CLIENT_PREFIX, self.get_resource_for_client()),
(FEDERATION_PREFIX, self.get_resource_for_federation()),
(CONTENT_REPO_PREFIX, self.get_resource_for_content_repo())
]
if web_client:
logger.info("Adding the web client.")
desired_tree.append((WEB_CLIENT_PREFIX,
self.get_resource_for_web_client()))
if web_client and redirect_root_to_web_client:
self.root_resource = RootRedirect(WEB_CLIENT_PREFIX)
else:
self.root_resource = Resource()
# ideally we'd just use getChild and putChild but getChild doesn't work
# unless you give it a Request object IN ADDITION to the name :/ So
# instead, we'll store a copy of this mapping so we can actually add
# extra resources to existing nodes. See self._resource_id for the key.
resource_mappings = {}
for (full_path, resource) in desired_tree:
logging.info("Attaching %s to path %s", resource, full_path)
last_resource = self.root_resource
for path_seg in full_path.split('/')[1:-1]:
if not path_seg in last_resource.listNames():
# resource doesn't exist, so make a "dummy resource"
child_resource = Resource()
last_resource.putChild(path_seg, child_resource)
res_id = self._resource_id(last_resource, path_seg)
resource_mappings[res_id] = child_resource
last_resource = child_resource
else:
# we have an existing Resource, use that instead.
res_id = self._resource_id(last_resource, path_seg)
last_resource = resource_mappings[res_id]
# ===========================
# now attach the actual desired resource
last_path_seg = full_path.split('/')[-1]
# if there is already a resource here, thieve its children and
# replace it
res_id = self._resource_id(last_resource, last_path_seg)
if res_id in resource_mappings:
# there is a dummy resource at this path already, which needs
# to be replaced with the desired resource.
existing_dummy_resource = resource_mappings[res_id]
for child_name in existing_dummy_resource.listNames():
child_res_id = self._resource_id(existing_dummy_resource,
child_name)
child_resource = resource_mappings[child_res_id]
# steal the children
resource.putChild(child_name, child_resource)
# finally, insert the desired resource in the right place
last_resource.putChild(last_path_seg, resource)
res_id = self._resource_id(last_resource, last_path_seg)
resource_mappings[res_id] = resource
return self.root_resource
def _resource_id(self, resource, path_seg):
"""Construct an arbitrary resource ID so you can retrieve the mapping
later.
If you want to represent resource A putChild resource B with path C,
the mapping should looks like _resource_id(A,C) = B.
Args:
resource (Resource): The *parent* Resource
path_seg (str): The name of the child Resource to be attached.
Returns:
str: A unique string which can be a key to the child Resource.
"""
return "%s-%s" % (resource, path_seg)
def start_listening(self, secure_port, unsecure_port):
if secure_port is not None:
reactor.listenSSL(
secure_port, Site(self.root_resource), self.tls_context_factory
)
logger.info("Synapse now listening on port %d", secure_port)
if unsecure_port is not None:
reactor.listenTCP(
unsecure_port, Site(self.root_resource)
)
logger.info("Synapse now listening on port %d", unsecure_port)
def run():
reactor.run()
def setup():
config = HomeServerConfig.load_config(
"Synapse Homeserver",
sys.argv[1:],
generate_section="Homeserver"
)
config.setup_logging()
logger.info("Server hostname: %s", config.server_name)
if re.search(":[0-9]+$", config.server_name):
domain_with_port = config.server_name
else:
domain_with_port = "%s:%s" % (config.server_name, config.bind_port)
tls_context_factory = context_factory.ServerContextFactory(config)
hs = SynapseHomeServer(
config.server_name,
domain_with_port=domain_with_port,
upload_dir=os.path.abspath("uploads"),
db_name=config.database_path,
tls_context_factory=tls_context_factory,
config=config,
content_addr=config.content_addr,
)
hs.register_servlets()
hs.create_resource_tree(
web_client=config.webclient,
redirect_root_to_web_client=True,
)
hs.start_listening(config.bind_port, config.unsecure_port)
prepare_database(hs.get_db_name())
hs.get_db_pool()
if config.manhole:
f = twisted.manhole.telnet.ShellFactory()
f.username = "matrix"
f.password = "rabbithole"
f.namespace['hs'] = hs
reactor.listenTCP(config.manhole, f, interface='127.0.0.1')
if config.daemonize:
print config.pid_file
daemon = Daemonize(
app="synapse-homeserver",
pid=config.pid_file,
action=run,
auto_close_fds=False,
verbose=True,
logger=logger,
)
daemon.start()
else:
run()
if __name__ == '__main__':
setup()
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