245 lines
8.4 KiB
Python
245 lines
8.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2015 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 twisted.internet import defer
|
|
|
|
from synapse.api.errors import StoreError
|
|
from synapse.appservice import ApplicationService
|
|
from ._base import SQLBaseStore
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ApplicationServiceCache(object):
|
|
"""Caches ApplicationServices and provides utility functions on top.
|
|
|
|
This class is designed to be invoked on incoming events in order to avoid
|
|
hammering the database every time to extract a list of application service
|
|
regexes.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self.services = []
|
|
|
|
|
|
class ApplicationServiceStore(SQLBaseStore):
|
|
|
|
def __init__(self, hs):
|
|
super(ApplicationServiceStore, self).__init__(hs)
|
|
self.cache = ApplicationServiceCache()
|
|
self.cache_defer = self._populate_cache()
|
|
|
|
@defer.inlineCallbacks
|
|
def unregister_app_service(self, token):
|
|
"""Unregisters this service.
|
|
|
|
This removes all AS specific regex and the base URL. The token is the
|
|
only thing preserved for future registration attempts.
|
|
"""
|
|
yield self.cache_defer # make sure the cache is ready
|
|
yield self.runInteraction(
|
|
"unregister_app_service",
|
|
self._unregister_app_service_txn,
|
|
token,
|
|
)
|
|
# update cache TODO: Should this be in the txn?
|
|
for service in self.cache.services:
|
|
if service.token == token:
|
|
service.url = None
|
|
service.namespaces = None
|
|
service.hs_token = None
|
|
|
|
def _unregister_app_service_txn(self, txn, token):
|
|
# kill the url to prevent pushes
|
|
txn.execute(
|
|
"UPDATE application_services SET url=NULL WHERE token=?",
|
|
(token,)
|
|
)
|
|
|
|
# cleanup regex
|
|
as_id = self._get_as_id_txn(txn, token)
|
|
if not as_id:
|
|
logger.warning(
|
|
"unregister_app_service_txn: Failed to find as_id for token=",
|
|
token
|
|
)
|
|
return False
|
|
|
|
txn.execute(
|
|
"DELETE FROM application_services_regex WHERE as_id=?",
|
|
(as_id,)
|
|
)
|
|
return True
|
|
|
|
@defer.inlineCallbacks
|
|
def update_app_service(self, service):
|
|
"""Update an application service, clobbering what was previously there.
|
|
|
|
Args:
|
|
service(ApplicationService): The updated service.
|
|
"""
|
|
yield self.cache_defer # make sure the cache is ready
|
|
|
|
# NB: There is no "insert" since we provide no public-facing API to
|
|
# allocate new ASes. It relies on the server admin inserting the AS
|
|
# token into the database manually.
|
|
|
|
if not service.token or not service.url:
|
|
raise StoreError(400, "Token and url must be specified.")
|
|
|
|
if not service.hs_token:
|
|
raise StoreError(500, "No HS token")
|
|
|
|
yield self.runInteraction(
|
|
"update_app_service",
|
|
self._update_app_service_txn,
|
|
service
|
|
)
|
|
|
|
# update cache TODO: Should this be in the txn?
|
|
for (index, cache_service) in enumerate(self.cache.services):
|
|
if service.token == cache_service.token:
|
|
self.cache.services[index] = service
|
|
logger.info("Updated: %s", service)
|
|
return
|
|
# new entry
|
|
self.cache.services.append(service)
|
|
logger.info("Updated(new): %s", service)
|
|
|
|
def _update_app_service_txn(self, txn, service):
|
|
as_id = self._get_as_id_txn(txn, service.token)
|
|
if not as_id:
|
|
logger.warning(
|
|
"update_app_service_txn: Failed to find as_id for token=",
|
|
service.token
|
|
)
|
|
return False
|
|
|
|
txn.execute(
|
|
"UPDATE application_services SET url=?, hs_token=?, sender=? "
|
|
"WHERE id=?",
|
|
(service.url, service.hs_token, service.sender, as_id,)
|
|
)
|
|
# cleanup regex
|
|
txn.execute(
|
|
"DELETE FROM application_services_regex WHERE as_id=?",
|
|
(as_id,)
|
|
)
|
|
for (ns_int, ns_str) in enumerate(ApplicationService.NS_LIST):
|
|
if ns_str in service.namespaces:
|
|
for regex in service.namespaces[ns_str]:
|
|
txn.execute(
|
|
"INSERT INTO application_services_regex("
|
|
"as_id, namespace, regex) values(?,?,?)",
|
|
(as_id, ns_int, regex)
|
|
)
|
|
return True
|
|
|
|
def _get_as_id_txn(self, txn, token):
|
|
cursor = txn.execute(
|
|
"SELECT id FROM application_services WHERE token=?",
|
|
(token,)
|
|
)
|
|
res = cursor.fetchone()
|
|
if res:
|
|
return res[0]
|
|
|
|
@defer.inlineCallbacks
|
|
def get_app_services(self):
|
|
yield self.cache_defer # make sure the cache is ready
|
|
defer.returnValue(self.cache.services)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_app_service_by_token(self, token, from_cache=True):
|
|
"""Get the application service with the given token.
|
|
|
|
Args:
|
|
token (str): The application service token.
|
|
from_cache (bool): True to get this service from the cache, False to
|
|
check the database.
|
|
Raises:
|
|
StoreError if there was a problem retrieving this service.
|
|
"""
|
|
yield self.cache_defer # make sure the cache is ready
|
|
|
|
if from_cache:
|
|
for service in self.cache.services:
|
|
if service.token == token:
|
|
defer.returnValue(service)
|
|
return
|
|
defer.returnValue(None)
|
|
|
|
# TODO: The from_cache=False impl
|
|
# TODO: This should be JOINed with the application_services_regex table.
|
|
|
|
@defer.inlineCallbacks
|
|
def _populate_cache(self):
|
|
"""Populates the ApplicationServiceCache from the database."""
|
|
sql = ("SELECT * FROM application_services LEFT JOIN "
|
|
"application_services_regex ON application_services.id = "
|
|
"application_services_regex.as_id")
|
|
# SQL results in the form:
|
|
# [
|
|
# {
|
|
# 'regex': "something",
|
|
# 'url': "something",
|
|
# 'namespace': enum,
|
|
# 'as_id': 0,
|
|
# 'token': "something",
|
|
# 'hs_token': "otherthing",
|
|
# 'id': 0
|
|
# }
|
|
# ]
|
|
services = {}
|
|
results = yield self._execute_and_decode(sql)
|
|
for res in results:
|
|
as_token = res["token"]
|
|
if as_token not in services:
|
|
# add the service
|
|
services[as_token] = {
|
|
"url": res["url"],
|
|
"token": as_token,
|
|
"hs_token": res["hs_token"],
|
|
"sender": res["sender"],
|
|
"namespaces": {
|
|
ApplicationService.NS_USERS: [],
|
|
ApplicationService.NS_ALIASES: [],
|
|
ApplicationService.NS_ROOMS: []
|
|
}
|
|
}
|
|
# add the namespace regex if one exists
|
|
ns_int = res["namespace"]
|
|
if ns_int is None:
|
|
continue
|
|
try:
|
|
services[as_token]["namespaces"][
|
|
ApplicationService.NS_LIST[ns_int]].append(
|
|
res["regex"]
|
|
)
|
|
except IndexError:
|
|
logger.error("Bad namespace enum '%s'. %s", ns_int, res)
|
|
|
|
# TODO get last successful txn id f.e. service
|
|
for service in services.values():
|
|
logger.info("Found application service: %s", service)
|
|
self.cache.services.append(ApplicationService(
|
|
token=service["token"],
|
|
url=service["url"],
|
|
namespaces=service["namespaces"],
|
|
hs_token=service["hs_token"],
|
|
sender=service["sender"]
|
|
))
|