430 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			430 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import hashlib
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from inspect import getcallargs
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from six.moves.urllib import parse as urlparse
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from mock import Mock, patch
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from twisted.internet import defer, reactor
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from synapse.api.errors import CodeMessageException, cs_error
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from synapse.federation.transport import server
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from synapse.http.server import HttpServer
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from synapse.server import HomeServer
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from synapse.storage import PostgresEngine
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from synapse.storage.engines import create_engine
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from synapse.storage.prepare_database import prepare_database
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from synapse.util.logcontext import LoggingContext
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from synapse.util.ratelimitutils import FederationRateLimiter
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# set this to True to run the tests against postgres instead of sqlite.
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# It requires you to have a local postgres database called synapse_test, within
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# which ALL TABLES WILL BE DROPPED
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USE_POSTGRES_FOR_TESTS = False
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@defer.inlineCallbacks
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def setup_test_homeserver(name="test", datastore=None, config=None, reactor=None,
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                          **kargs):
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    """Setup a homeserver suitable for running tests against. Keyword arguments
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    are passed to the Homeserver constructor. If no datastore is supplied a
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    datastore backed by an in-memory sqlite db will be given to the HS.
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    """
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    if reactor is None:
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        from twisted.internet import reactor
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    if config is None:
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        config = Mock()
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        config.signing_key = [MockKey()]
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        config.event_cache_size = 1
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        config.enable_registration = True
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        config.macaroon_secret_key = "not even a little secret"
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        config.expire_access_token = False
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        config.server_name = name
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        config.trusted_third_party_id_servers = []
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        config.room_invite_state_types = []
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        config.password_providers = []
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        config.worker_replication_url = ""
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        config.worker_app = None
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        config.email_enable_notifs = False
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        config.block_non_admin_invites = False
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        config.federation_domain_whitelist = None
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        config.federation_rc_reject_limit = 10
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        config.federation_rc_sleep_limit = 10
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        config.federation_rc_concurrent = 10
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        config.filter_timeline_limit = 5000
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        config.user_directory_search_all_users = False
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        config.user_consent_server_notice_content = None
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        config.block_events_without_consent_error = None
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        # disable user directory updates, because they get done in the
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        # background, which upsets the test runner.
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        config.update_user_directory = False
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    config.use_frozen_dicts = True
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    config.ldap_enabled = False
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    if "clock" not in kargs:
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        kargs["clock"] = MockClock()
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    if USE_POSTGRES_FOR_TESTS:
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        config.database_config = {
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            "name": "psycopg2",
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            "args": {
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                "database": "synapse_test",
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                "cp_min": 1,
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                "cp_max": 5,
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            },
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        }
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    else:
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        config.database_config = {
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            "name": "sqlite3",
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            "args": {
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                "database": ":memory:",
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                "cp_min": 1,
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                "cp_max": 1,
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            },
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        }
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    db_engine = create_engine(config.database_config)
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    # we need to configure the connection pool to run the on_new_connection
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    # function, so that we can test code that uses custom sqlite functions
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    # (like rank).
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    config.database_config["args"]["cp_openfun"] = db_engine.on_new_connection
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    if datastore is None:
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        hs = HomeServer(
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            name, config=config,
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            db_config=config.database_config,
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            version_string="Synapse/tests",
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            database_engine=db_engine,
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            room_list_handler=object(),
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            tls_server_context_factory=Mock(),
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            reactor=reactor,
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            **kargs
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        )
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        db_conn = hs.get_db_conn()
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        # make sure that the database is empty
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        if isinstance(db_engine, PostgresEngine):
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            cur = db_conn.cursor()
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            cur.execute("SELECT tablename FROM pg_tables where schemaname='public'")
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            rows = cur.fetchall()
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            for r in rows:
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                cur.execute("DROP TABLE %s CASCADE" % r[0])
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        yield prepare_database(db_conn, db_engine, config)
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        hs.setup()
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    else:
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        hs = HomeServer(
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            name, db_pool=None, datastore=datastore, config=config,
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            version_string="Synapse/tests",
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            database_engine=db_engine,
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            room_list_handler=object(),
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            tls_server_context_factory=Mock(),
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            **kargs
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        )
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    # bcrypt is far too slow to be doing in unit tests
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    # Need to let the HS build an auth handler and then mess with it
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    # because AuthHandler's constructor requires the HS, so we can't make one
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    # beforehand and pass it in to the HS's constructor (chicken / egg)
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    hs.get_auth_handler().hash = lambda p: hashlib.md5(p).hexdigest()
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    hs.get_auth_handler().validate_hash = lambda p, h: hashlib.md5(p).hexdigest() == h
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    fed = kargs.get("resource_for_federation", None)
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    if fed:
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        server.register_servlets(
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            hs,
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            resource=fed,
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            authenticator=server.Authenticator(hs),
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            ratelimiter=FederationRateLimiter(
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                hs.get_clock(),
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                window_size=hs.config.federation_rc_window_size,
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                sleep_limit=hs.config.federation_rc_sleep_limit,
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                sleep_msec=hs.config.federation_rc_sleep_delay,
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                reject_limit=hs.config.federation_rc_reject_limit,
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                concurrent_requests=hs.config.federation_rc_concurrent
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            ),
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        )
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    defer.returnValue(hs)
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def get_mock_call_args(pattern_func, mock_func):
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    """ Return the arguments the mock function was called with interpreted
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    by the pattern functions argument list.
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    """
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    invoked_args, invoked_kargs = mock_func.call_args
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    return getcallargs(pattern_func, *invoked_args, **invoked_kargs)
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def mock_getRawHeaders(headers=None):
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    headers = headers if headers is not None else {}
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    def getRawHeaders(name, default=None):
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        return headers.get(name, default)
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    return getRawHeaders
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# This is a mock /resource/ not an entire server
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class MockHttpResource(HttpServer):
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    def __init__(self, prefix=""):
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        self.callbacks = []  # 3-tuple of method/pattern/function
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        self.prefix = prefix
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    def trigger_get(self, path):
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        return self.trigger("GET", path, None)
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    @patch('twisted.web.http.Request')
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    @defer.inlineCallbacks
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    def trigger(self, http_method, path, content, mock_request, federation_auth=False):
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        """ Fire an HTTP event.
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        Args:
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            http_method : The HTTP method
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            path : The HTTP path
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            content : The HTTP body
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            mock_request : Mocked request to pass to the event so it can get
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                           content.
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        Returns:
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            A tuple of (code, response)
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        Raises:
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            KeyError If no event is found which will handle the path.
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        """
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        path = self.prefix + path
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        # annoyingly we return a twisted http request which has chained calls
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        # to get at the http content, hence mock it here.
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        mock_content = Mock()
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        config = {'read.return_value': content}
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        mock_content.configure_mock(**config)
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        mock_request.content = mock_content
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        mock_request.method = http_method
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        mock_request.uri = path
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        mock_request.getClientIP.return_value = "-"
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        headers = {}
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        if federation_auth:
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            headers[b"Authorization"] = ["X-Matrix origin=test,key=,sig="]
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        mock_request.requestHeaders.getRawHeaders = mock_getRawHeaders(headers)
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        # return the right path if the event requires it
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        mock_request.path = path
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        # add in query params to the right place
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        try:
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            mock_request.args = urlparse.parse_qs(path.split('?')[1])
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            mock_request.path = path.split('?')[0]
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            path = mock_request.path
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        except Exception:
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            pass
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        for (method, pattern, func) in self.callbacks:
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            if http_method != method:
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                continue
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            matcher = pattern.match(path)
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            if matcher:
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                try:
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                    args = [
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                        urlparse.unquote(u).decode("UTF-8")
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                        for u in matcher.groups()
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                    ]
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                    (code, response) = yield func(
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                        mock_request,
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                        *args
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                    )
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                    defer.returnValue((code, response))
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                except CodeMessageException as e:
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                    defer.returnValue((e.code, cs_error(e.msg, code=e.errcode)))
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        raise KeyError("No event can handle %s" % path)
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    def register_paths(self, method, path_patterns, callback):
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        for path_pattern in path_patterns:
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            self.callbacks.append((method, path_pattern, callback))
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class MockKey(object):
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    alg = "mock_alg"
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    version = "mock_version"
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    signature = b"\x9a\x87$"
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    @property
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    def verify_key(self):
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        return self
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    def sign(self, message):
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        return self
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    def verify(self, message, sig):
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        assert sig == b"\x9a\x87$"
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class MockClock(object):
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    now = 1000
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    def __init__(self):
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        # list of lists of [absolute_time, callback, expired] in no particular
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        # order
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        self.timers = []
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        self.loopers = []
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    def time(self):
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        return self.now
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    def time_msec(self):
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        return self.time() * 1000
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    def call_later(self, delay, callback, *args, **kwargs):
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        current_context = LoggingContext.current_context()
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        def wrapped_callback():
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            LoggingContext.thread_local.current_context = current_context
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            callback(*args, **kwargs)
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        t = [self.now + delay, wrapped_callback, False]
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        self.timers.append(t)
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        return t
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    def looping_call(self, function, interval):
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        self.loopers.append([function, interval / 1000., self.now])
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    def cancel_call_later(self, timer, ignore_errs=False):
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        if timer[2]:
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            if not ignore_errs:
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                raise Exception("Cannot cancel an expired timer")
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        timer[2] = True
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        self.timers = [t for t in self.timers if t != timer]
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    # For unit testing
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    def advance_time(self, secs):
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        self.now += secs
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        timers = self.timers
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        self.timers = []
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        for t in timers:
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            time, callback, expired = t
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            if expired:
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                raise Exception("Timer already expired")
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            if self.now >= time:
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                t[2] = True
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                callback()
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            else:
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                self.timers.append(t)
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        for looped in self.loopers:
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            func, interval, last = looped
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            if last + interval < self.now:
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                func()
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                looped[2] = self.now
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    def advance_time_msec(self, ms):
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        self.advance_time(ms / 1000.)
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    def time_bound_deferred(self, d, *args, **kwargs):
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        # We don't bother timing things out for now.
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        return d
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def _format_call(args, kwargs):
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    return ", ".join(
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        ["%r" % (a) for a in args] +
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        ["%s=%r" % (k, v) for k, v in kwargs.items()]
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    )
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class DeferredMockCallable(object):
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    """A callable instance that stores a set of pending call expectations and
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    return values for them. It allows a unit test to assert that the given set
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    of function calls are eventually made, by awaiting on them to be called.
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    """
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    def __init__(self):
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        self.expectations = []
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        self.calls = []
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    def __call__(self, *args, **kwargs):
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        self.calls.append((args, kwargs))
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        if not self.expectations:
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            raise ValueError("%r has no pending calls to handle call(%s)" % (
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                self, _format_call(args, kwargs))
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            )
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        for (call, result, d) in self.expectations:
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            if args == call[1] and kwargs == call[2]:
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                d.callback(None)
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                return result
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        failure = AssertionError("Was not expecting call(%s)" % (
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            _format_call(args, kwargs)
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        ))
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        for _, _, d in self.expectations:
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            try:
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                d.errback(failure)
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            except Exception:
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                pass
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        raise failure
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    def expect_call_and_return(self, call, result):
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        self.expectations.append((call, result, defer.Deferred()))
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    @defer.inlineCallbacks
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    def await_calls(self, timeout=1000):
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        deferred = defer.DeferredList(
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            [d for _, _, d in self.expectations],
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            fireOnOneErrback=True
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        )
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        timer = reactor.callLater(
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            timeout / 1000,
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            deferred.errback,
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            AssertionError("%d pending calls left: %s" % (
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                len([e for e in self.expectations if not e[2].called]),
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                [e for e in self.expectations if not e[2].called]
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            ))
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        )
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        yield deferred
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        timer.cancel()
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        self.calls = []
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    def assert_had_no_calls(self):
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        if self.calls:
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            calls = self.calls
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            self.calls = []
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            raise AssertionError(
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                "Expected not to received any calls, got:\n" + "\n".join([
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                    "call(%s)" % _format_call(c[0], c[1]) for c in calls
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                ])
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            )
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