summary refs log tree commit diff
path: root/tests/utils.py
blob: 7a927c7f74216ea9644cd3db164ed065ab9a7666 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2018-2019 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.

import atexit
import hashlib
import os
import time
import uuid
import warnings
from inspect import getcallargs
from urllib import parse as urlparse

from mock import Mock, patch

from twisted.internet import defer, reactor

from synapse.api.constants import EventTypes
from synapse.api.errors import CodeMessageException, cs_error
from synapse.api.room_versions import RoomVersions
from synapse.config.database import DatabaseConnectionConfig
from synapse.config.homeserver import HomeServerConfig
from synapse.config.server import DEFAULT_ROOM_VERSION
from synapse.federation.transport import server as federation_server
from synapse.http.server import HttpServer
from synapse.logging.context import current_context, set_current_context
from synapse.server import HomeServer
from synapse.storage import DataStore
from synapse.storage.engines import PostgresEngine, create_engine
from synapse.storage.prepare_database import prepare_database
from synapse.util.ratelimitutils import FederationRateLimiter

# set this to True to run the tests against postgres instead of sqlite.
#
# When running under postgres, we first create a base database with the name
# POSTGRES_BASE_DB and update it to the current schema. Then, for each test case, we
# create another unique database, using the base database as a template.
USE_POSTGRES_FOR_TESTS = os.environ.get("SYNAPSE_POSTGRES", False)
LEAVE_DB = os.environ.get("SYNAPSE_LEAVE_DB", False)
POSTGRES_USER = os.environ.get("SYNAPSE_POSTGRES_USER", None)
POSTGRES_HOST = os.environ.get("SYNAPSE_POSTGRES_HOST", None)
POSTGRES_PASSWORD = os.environ.get("SYNAPSE_POSTGRES_PASSWORD", None)
POSTGRES_BASE_DB = "_synapse_unit_tests_base_%s" % (os.getpid(),)

# the dbname we will connect to in order to create the base database.
POSTGRES_DBNAME_FOR_INITIAL_CREATE = "postgres"


def setupdb():
    # If we're using PostgreSQL, set up the db once
    if USE_POSTGRES_FOR_TESTS:
        # create a PostgresEngine
        db_engine = create_engine({"name": "psycopg2", "args": {}})

        # connect to postgres to create the base database.
        db_conn = db_engine.module.connect(
            user=POSTGRES_USER,
            host=POSTGRES_HOST,
            password=POSTGRES_PASSWORD,
            dbname=POSTGRES_DBNAME_FOR_INITIAL_CREATE,
        )
        db_conn.autocommit = True
        cur = db_conn.cursor()
        cur.execute("DROP DATABASE IF EXISTS %s;" % (POSTGRES_BASE_DB,))
        cur.execute(
            "CREATE DATABASE %s ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' "
            "template=template0;" % (POSTGRES_BASE_DB,)
        )
        cur.close()
        db_conn.close()

        # Set up in the db
        db_conn = db_engine.module.connect(
            database=POSTGRES_BASE_DB,
            user=POSTGRES_USER,
            host=POSTGRES_HOST,
            password=POSTGRES_PASSWORD,
        )
        prepare_database(db_conn, db_engine, None)
        db_conn.close()

        def _cleanup():
            db_conn = db_engine.module.connect(
                user=POSTGRES_USER,
                host=POSTGRES_HOST,
                password=POSTGRES_PASSWORD,
                dbname=POSTGRES_DBNAME_FOR_INITIAL_CREATE,
            )
            db_conn.autocommit = True
            cur = db_conn.cursor()
            cur.execute("DROP DATABASE IF EXISTS %s;" % (POSTGRES_BASE_DB,))
            cur.close()
            db_conn.close()

        atexit.register(_cleanup)


def default_config(name, parse=False):
    """
    Create a reasonable test config.
    """
    config_dict = {
        "server_name": name,
        "send_federation": False,
        "media_store_path": "media",
        "uploads_path": "uploads",
        # the test signing key is just an arbitrary ed25519 key to keep the config
        # parser happy
        "signing_key": "ed25519 a_lPym qvioDNmfExFBRPgdTU+wtFYKq4JfwFRv7sYVgWvmgJg",
        "event_cache_size": 1,
        "enable_registration": True,
        "enable_registration_captcha": False,
        "macaroon_secret_key": "not even a little secret",
        "trusted_third_party_id_servers": [],
        "room_invite_state_types": [],
        "password_providers": [],
        "worker_replication_url": "",
        "worker_app": None,
        "block_non_admin_invites": False,
        "federation_domain_whitelist": None,
        "filter_timeline_limit": 5000,
        "user_directory_search_all_users": False,
        "user_consent_server_notice_content": None,
        "block_events_without_consent_error": None,
        "user_consent_at_registration": False,
        "user_consent_policy_name": "Privacy Policy",
        "media_storage_providers": [],
        "autocreate_auto_join_rooms": True,
        "auto_join_rooms": [],
        "limit_usage_by_mau": False,
        "hs_disabled": False,
        "hs_disabled_message": "",
        "max_mau_value": 50,
        "mau_trial_days": 0,
        "mau_stats_only": False,
        "mau_limits_reserved_threepids": [],
        "admin_contact": None,
        "rc_message": {"per_second": 10000, "burst_count": 10000},
        "rc_registration": {"per_second": 10000, "burst_count": 10000},
        "rc_login": {
            "address": {"per_second": 10000, "burst_count": 10000},
            "account": {"per_second": 10000, "burst_count": 10000},
            "failed_attempts": {"per_second": 10000, "burst_count": 10000},
        },
        "rc_joins": {
            "local": {"per_second": 10000, "burst_count": 10000},
            "remote": {"per_second": 10000, "burst_count": 10000},
        },
        "saml2_enabled": False,
        "public_baseurl": None,
        "default_identity_server": None,
        "key_refresh_interval": 24 * 60 * 60 * 1000,
        "old_signing_keys": {},
        "tls_fingerprints": [],
        "use_frozen_dicts": False,
        # We need a sane default_room_version, otherwise attempts to create
        # rooms will fail.
        "default_room_version": DEFAULT_ROOM_VERSION,
        # disable user directory updates, because they get done in the
        # background, which upsets the test runner.
        "update_user_directory": False,
        "caches": {"global_factor": 1},
        "listeners": [{"port": 0, "type": "http"}],
    }

    if parse:
        config = HomeServerConfig()
        config.parse_config_dict(config_dict, "", "")
        return config

    return config_dict


class TestHomeServer(HomeServer):
    DATASTORE_CLASS = DataStore


def setup_test_homeserver(
    cleanup_func,
    name="test",
    datastore=None,
    config=None,
    reactor=None,
    homeserverToUse=TestHomeServer,
    **kargs
):
    """
    Setup a homeserver suitable for running tests against.  Keyword arguments
    are passed to the Homeserver constructor.

    If no datastore is supplied, one is created and given to the homeserver.

    Args:
        cleanup_func : The function used to register a cleanup routine for
                       after the test.

    Calling this method directly is deprecated: you should instead derive from
    HomeserverTestCase.
    """
    if reactor is None:
        from twisted.internet import reactor

    if config is None:
        config = default_config(name, parse=True)

    config.ldap_enabled = False

    if "clock" not in kargs:
        kargs["clock"] = MockClock()

    if USE_POSTGRES_FOR_TESTS:
        test_db = "synapse_test_%s" % uuid.uuid4().hex

        database_config = {
            "name": "psycopg2",
            "args": {
                "database": test_db,
                "host": POSTGRES_HOST,
                "password": POSTGRES_PASSWORD,
                "user": POSTGRES_USER,
                "cp_min": 1,
                "cp_max": 5,
            },
        }
    else:
        database_config = {
            "name": "sqlite3",
            "args": {"database": ":memory:", "cp_min": 1, "cp_max": 1},
        }

    database = DatabaseConnectionConfig("master", database_config)
    config.database.databases = [database]

    db_engine = create_engine(database.config)

    # Create the database before we actually try and connect to it, based off
    # the template database we generate in setupdb()
    if datastore is None and isinstance(db_engine, PostgresEngine):
        db_conn = db_engine.module.connect(
            database=POSTGRES_BASE_DB,
            user=POSTGRES_USER,
            host=POSTGRES_HOST,
            password=POSTGRES_PASSWORD,
        )
        db_conn.autocommit = True
        cur = db_conn.cursor()
        cur.execute("DROP DATABASE IF EXISTS %s;" % (test_db,))
        cur.execute(
            "CREATE DATABASE %s WITH TEMPLATE %s;" % (test_db, POSTGRES_BASE_DB)
        )
        cur.close()
        db_conn.close()

    if datastore is None:
        hs = homeserverToUse(
            name,
            config=config,
            version_string="Synapse/tests",
            tls_server_context_factory=Mock(),
            tls_client_options_factory=Mock(),
            reactor=reactor,
            **kargs
        )

        hs.setup()
        if homeserverToUse.__name__ == "TestHomeServer":
            hs.setup_background_tasks()

        if isinstance(db_engine, PostgresEngine):
            database = hs.get_datastores().databases[0]

            # We need to do cleanup on PostgreSQL
            def cleanup():
                import psycopg2

                # Close all the db pools
                database._db_pool.close()

                dropped = False

                # Drop the test database
                db_conn = db_engine.module.connect(
                    database=POSTGRES_BASE_DB,
                    user=POSTGRES_USER,
                    host=POSTGRES_HOST,
                    password=POSTGRES_PASSWORD,
                )
                db_conn.autocommit = True
                cur = db_conn.cursor()

                # Try a few times to drop the DB. Some things may hold on to the
                # database for a few more seconds due to flakiness, preventing
                # us from dropping it when the test is over. If we can't drop
                # it, warn and move on.
                for x in range(5):
                    try:
                        cur.execute("DROP DATABASE IF EXISTS %s;" % (test_db,))
                        db_conn.commit()
                        dropped = True
                    except psycopg2.OperationalError as e:
                        warnings.warn(
                            "Couldn't drop old db: " + str(e), category=UserWarning
                        )
                        time.sleep(0.5)

                cur.close()
                db_conn.close()

                if not dropped:
                    warnings.warn("Failed to drop old DB.", category=UserWarning)

            if not LEAVE_DB:
                # Register the cleanup hook
                cleanup_func(cleanup)

    else:
        hs = homeserverToUse(
            name,
            datastore=datastore,
            config=config,
            version_string="Synapse/tests",
            tls_server_context_factory=Mock(),
            tls_client_options_factory=Mock(),
            reactor=reactor,
            **kargs
        )

    # bcrypt is far too slow to be doing in unit tests
    # Need to let the HS build an auth handler and then mess with it
    # because AuthHandler's constructor requires the HS, so we can't make one
    # beforehand and pass it in to the HS's constructor (chicken / egg)
    async def hash(p):
        return hashlib.md5(p.encode("utf8")).hexdigest()

    hs.get_auth_handler().hash = hash

    async def validate_hash(p, h):
        return hashlib.md5(p.encode("utf8")).hexdigest() == h

    hs.get_auth_handler().validate_hash = validate_hash

    fed = kargs.get("resource_for_federation", None)
    if fed:
        register_federation_servlets(hs, fed)

    return hs


def register_federation_servlets(hs, resource):
    federation_server.register_servlets(
        hs,
        resource=resource,
        authenticator=federation_server.Authenticator(hs),
        ratelimiter=FederationRateLimiter(
            hs.get_clock(), config=hs.config.rc_federation
        ),
    )


def get_mock_call_args(pattern_func, mock_func):
    """ Return the arguments the mock function was called with interpreted
    by the pattern functions argument list.
    """
    invoked_args, invoked_kargs = mock_func.call_args
    return getcallargs(pattern_func, *invoked_args, **invoked_kargs)


def mock_getRawHeaders(headers=None):
    headers = headers if headers is not None else {}

    def getRawHeaders(name, default=None):
        return headers.get(name, default)

    return getRawHeaders


# This is a mock /resource/ not an entire server
class MockHttpResource(HttpServer):
    def __init__(self, prefix=""):
        self.callbacks = []  # 3-tuple of method/pattern/function
        self.prefix = prefix

    def trigger_get(self, path):
        return self.trigger(b"GET", path, None)

    @patch("twisted.web.http.Request")
    @defer.inlineCallbacks
    def trigger(
        self, http_method, path, content, mock_request, federation_auth_origin=None
    ):
        """ Fire an HTTP event.

        Args:
            http_method : The HTTP method
            path : The HTTP path
            content : The HTTP body
            mock_request : Mocked request to pass to the event so it can get
                           content.
            federation_auth_origin (bytes|None): domain to authenticate as, for federation
        Returns:
            A tuple of (code, response)
        Raises:
            KeyError If no event is found which will handle the path.
        """
        path = self.prefix + path

        # annoyingly we return a twisted http request which has chained calls
        # to get at the http content, hence mock it here.
        mock_content = Mock()
        config = {"read.return_value": content}
        mock_content.configure_mock(**config)
        mock_request.content = mock_content

        mock_request.method = http_method.encode("ascii")
        mock_request.uri = path.encode("ascii")

        mock_request.getClientIP.return_value = "-"

        headers = {}
        if federation_auth_origin is not None:
            headers[b"Authorization"] = [
                b"X-Matrix origin=%s,key=,sig=" % (federation_auth_origin,)
            ]
        mock_request.requestHeaders.getRawHeaders = mock_getRawHeaders(headers)

        # return the right path if the event requires it
        mock_request.path = path

        # add in query params to the right place
        try:
            mock_request.args = urlparse.parse_qs(path.split("?")[1])
            mock_request.path = path.split("?")[0]
            path = mock_request.path
        except Exception:
            pass

        if isinstance(path, bytes):
            path = path.decode("utf8")

        for (method, pattern, func) in self.callbacks:
            if http_method != method:
                continue

            matcher = pattern.match(path)
            if matcher:
                try:
                    args = [urlparse.unquote(u) for u in matcher.groups()]

                    (code, response) = yield defer.ensureDeferred(
                        func(mock_request, *args)
                    )
                    return code, response
                except CodeMessageException as e:
                    return (e.code, cs_error(e.msg, code=e.errcode))

        raise KeyError("No event can handle %s" % path)

    def register_paths(self, method, path_patterns, callback, servlet_name):
        for path_pattern in path_patterns:
            self.callbacks.append((method, path_pattern, callback))


class MockKey:
    alg = "mock_alg"
    version = "mock_version"
    signature = b"\x9a\x87$"

    @property
    def verify_key(self):
        return self

    def sign(self, message):
        return self

    def verify(self, message, sig):
        assert sig == b"\x9a\x87$"

    def encode(self):
        return b"<fake_encoded_key>"


class MockClock:
    now = 1000

    def __init__(self):
        # list of lists of [absolute_time, callback, expired] in no particular
        # order
        self.timers = []
        self.loopers = []

    def time(self):
        return self.now

    def time_msec(self):
        return self.time() * 1000

    def call_later(self, delay, callback, *args, **kwargs):
        ctx = current_context()

        def wrapped_callback():
            set_current_context(ctx)
            callback(*args, **kwargs)

        t = [self.now + delay, wrapped_callback, False]
        self.timers.append(t)

        return t

    def looping_call(self, function, interval, *args, **kwargs):
        self.loopers.append([function, interval / 1000.0, self.now, args, kwargs])

    def cancel_call_later(self, timer, ignore_errs=False):
        if timer[2]:
            if not ignore_errs:
                raise Exception("Cannot cancel an expired timer")

        timer[2] = True
        self.timers = [t for t in self.timers if t != timer]

    # For unit testing
    def advance_time(self, secs):
        self.now += secs

        timers = self.timers
        self.timers = []

        for t in timers:
            time, callback, expired = t

            if expired:
                raise Exception("Timer already expired")

            if self.now >= time:
                t[2] = True
                callback()
            else:
                self.timers.append(t)

        for looped in self.loopers:
            func, interval, last, args, kwargs = looped
            if last + interval < self.now:
                func(*args, **kwargs)
                looped[2] = self.now

    def advance_time_msec(self, ms):
        self.advance_time(ms / 1000.0)

    def time_bound_deferred(self, d, *args, **kwargs):
        # We don't bother timing things out for now.
        return d


def _format_call(args, kwargs):
    return ", ".join(
        ["%r" % (a) for a in args] + ["%s=%r" % (k, v) for k, v in kwargs.items()]
    )


class DeferredMockCallable:
    """A callable instance that stores a set of pending call expectations and
    return values for them. It allows a unit test to assert that the given set
    of function calls are eventually made, by awaiting on them to be called.
    """

    def __init__(self):
        self.expectations = []
        self.calls = []

    def __call__(self, *args, **kwargs):
        self.calls.append((args, kwargs))

        if not self.expectations:
            raise ValueError(
                "%r has no pending calls to handle call(%s)"
                % (self, _format_call(args, kwargs))
            )

        for (call, result, d) in self.expectations:
            if args == call[1] and kwargs == call[2]:
                d.callback(None)
                return result

        failure = AssertionError(
            "Was not expecting call(%s)" % (_format_call(args, kwargs))
        )

        for _, _, d in self.expectations:
            try:
                d.errback(failure)
            except Exception:
                pass

        raise failure

    def expect_call_and_return(self, call, result):
        self.expectations.append((call, result, defer.Deferred()))

    @defer.inlineCallbacks
    def await_calls(self, timeout=1000):
        deferred = defer.DeferredList(
            [d for _, _, d in self.expectations], fireOnOneErrback=True
        )

        timer = reactor.callLater(
            timeout / 1000,
            deferred.errback,
            AssertionError(
                "%d pending calls left: %s"
                % (
                    len([e for e in self.expectations if not e[2].called]),
                    [e for e in self.expectations if not e[2].called],
                )
            ),
        )

        yield deferred

        timer.cancel()

        self.calls = []

    def assert_had_no_calls(self):
        if self.calls:
            calls = self.calls
            self.calls = []

            raise AssertionError(
                "Expected not to received any calls, got:\n"
                + "\n".join(["call(%s)" % _format_call(c[0], c[1]) for c in calls])
            )


async def create_room(hs, room_id: str, creator_id: str):
    """Creates and persist a creation event for the given room
    """

    persistence_store = hs.get_storage().persistence
    store = hs.get_datastore()
    event_builder_factory = hs.get_event_builder_factory()
    event_creation_handler = hs.get_event_creation_handler()

    await store.store_room(
        room_id=room_id,
        room_creator_user_id=creator_id,
        is_public=False,
        room_version=RoomVersions.V1,
    )

    builder = event_builder_factory.for_room_version(
        RoomVersions.V1,
        {
            "type": EventTypes.Create,
            "state_key": "",
            "sender": creator_id,
            "room_id": room_id,
            "content": {},
        },
    )

    event, context = await event_creation_handler.create_new_client_event(builder)

    await persistence_store.persist_event(event, context)