import collections import os import re import sys import time from contextlib import contextmanager from typing import ( IO, TYPE_CHECKING, Any, Callable, Dict, Iterable, Iterator, List, Mapping, Optional, Tuple, TypedDict, TypeVar, Union, cast, ) from unittest import mock import boto3.session import fakeldap import ldap import orjson from django.conf import settings from django.contrib.auth.models import AnonymousUser from django.db.migrations.state import StateApps from django.http import HttpRequest, HttpResponse, HttpResponseRedirect from django.http.request import QueryDict from django.http.response import HttpResponseBase from django.test import override_settings from django.urls import URLResolver from moto.s3 import mock_s3 from mypy_boto3_s3.service_resource import Bucket from zerver.actions.realm_settings import do_set_realm_user_default_setting from zerver.actions.user_settings import do_change_user_setting from zerver.lib import cache from zerver.lib.avatar import avatar_url from zerver.lib.cache import get_cache_backend from zerver.lib.db import Params, ParamsT, Query, TimeTrackingCursor from zerver.lib.integrations import WEBHOOK_INTEGRATIONS from zerver.lib.request import RequestNotes from zerver.lib.upload.s3 import S3UploadBackend from zerver.models import ( Client, Message, RealmUserDefault, Subscription, UserMessage, UserProfile, get_client, get_realm, get_stream, ) from zerver.tornado.handlers import AsyncDjangoHandler, allocate_handler_id from zilencer.models import RemoteZulipServer from zproject.backends import ExternalAuthDataDict, ExternalAuthResult if TYPE_CHECKING: from django.test.client import _MonkeyPatchedWSGIResponse as TestHttpResponse # Avoid an import cycle; we only need these for type annotations. from zerver.lib.test_classes import MigrationsTestCase, ZulipTestCase class MockLDAP(fakeldap.MockLDAP): class LDAPError(ldap.LDAPError): pass class INVALID_CREDENTIALS(ldap.INVALID_CREDENTIALS): # noqa: N801 pass class NO_SUCH_OBJECT(ldap.NO_SUCH_OBJECT): # noqa: N801 pass class ALREADY_EXISTS(ldap.ALREADY_EXISTS): # noqa: N801 pass @contextmanager def stub_event_queue_user_events( event_queue_return: Any, user_events_return: Any ) -> Iterator[None]: with mock.patch("zerver.lib.events.request_event_queue", return_value=event_queue_return): with mock.patch("zerver.lib.events.get_user_events", return_value=user_events_return): yield @contextmanager def cache_tries_captured() -> Iterator[List[Tuple[str, Union[str, List[str]], Optional[str]]]]: cache_queries: List[Tuple[str, Union[str, List[str]], Optional[str]]] = [] orig_get = cache.cache_get orig_get_many = cache.cache_get_many def my_cache_get(key: str, cache_name: Optional[str] = None) -> Optional[Dict[str, Any]]: cache_queries.append(("get", key, cache_name)) return orig_get(key, cache_name) def my_cache_get_many( keys: List[str], cache_name: Optional[str] = None ) -> Dict[str, Any]: # nocoverage -- simulated code doesn't use this cache_queries.append(("getmany", keys, cache_name)) return orig_get_many(keys, cache_name) with mock.patch.multiple(cache, cache_get=my_cache_get, cache_get_many=my_cache_get_many): yield cache_queries @contextmanager def simulated_empty_cache() -> Iterator[List[Tuple[str, Union[str, List[str]], Optional[str]]]]: cache_queries: List[Tuple[str, Union[str, List[str]], Optional[str]]] = [] def my_cache_get(key: str, cache_name: Optional[str] = None) -> Optional[Dict[str, Any]]: cache_queries.append(("get", key, cache_name)) return None def my_cache_get_many( keys: List[str], cache_name: Optional[str] = None ) -> Dict[str, Any]: # nocoverage -- simulated code doesn't use this cache_queries.append(("getmany", keys, cache_name)) return {} with mock.patch.multiple(cache, cache_get=my_cache_get, cache_get_many=my_cache_get_many): yield cache_queries class CapturedQueryDict(TypedDict): sql: bytes time: str @contextmanager def queries_captured( include_savepoints: bool = False, keep_cache_warm: bool = False ) -> Iterator[List[CapturedQueryDict]]: """ Allow a user to capture just the queries executed during the with statement. """ queries: List[CapturedQueryDict] = [] def wrapper_execute( self: TimeTrackingCursor, action: Callable[[Query, ParamsT], None], sql: Query, params: ParamsT, ) -> None: start = time.time() try: return action(sql, params) finally: stop = time.time() duration = stop - start if include_savepoints or not isinstance(sql, str) or "SAVEPOINT" not in sql: queries.append( { "sql": self.mogrify(sql, params).decode(), "time": f"{duration:.3f}", } ) def cursor_execute( self: TimeTrackingCursor, sql: Query, params: Optional[Params] = None ) -> None: return wrapper_execute(self, super(TimeTrackingCursor, self).execute, sql, params) def cursor_executemany(self: TimeTrackingCursor, sql: Query, params: Iterable[Params]) -> None: return wrapper_execute( self, super(TimeTrackingCursor, self).executemany, sql, params ) # nocoverage -- doesn't actually get used in tests if not keep_cache_warm: cache = get_cache_backend(None) cache.clear() with mock.patch.multiple( TimeTrackingCursor, execute=cursor_execute, executemany=cursor_executemany ): yield queries @contextmanager def stdout_suppressed() -> Iterator[IO[str]]: """Redirect stdout to /dev/null.""" with open(os.devnull, "a") as devnull: stdout, sys.stdout = sys.stdout, devnull try: yield stdout finally: sys.stdout = stdout def reset_email_visibility_to_everyone_in_zulip_realm() -> None: """ This function is used to reset email visibility for all users and RealmUserDefault object in the zulip realm in development environment to "EMAIL_ADDRESS_VISIBILITY_EVERYONE" since the default value is "EMAIL_ADDRESS_VISIBILITY_ADMINS". This function is needed in tests that want "email" field of users to be set to their real email. """ realm = get_realm("zulip") realm_user_default = RealmUserDefault.objects.get(realm=realm) do_set_realm_user_default_setting( realm_user_default, "email_address_visibility", RealmUserDefault.EMAIL_ADDRESS_VISIBILITY_EVERYONE, acting_user=None, ) users = UserProfile.objects.filter(realm=realm) for user in users: do_change_user_setting( user, "email_address_visibility", UserProfile.EMAIL_ADDRESS_VISIBILITY_EVERYONE, acting_user=None, ) def get_test_image_file(filename: str) -> IO[bytes]: test_avatar_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../tests/images")) return open(os.path.join(test_avatar_dir, filename), "rb") # noqa: SIM115 def read_test_image_file(filename: str) -> bytes: with get_test_image_file(filename) as img_file: return img_file.read() def avatar_disk_path( user_profile: UserProfile, medium: bool = False, original: bool = False ) -> str: avatar_url_path = avatar_url(user_profile, medium) assert avatar_url_path is not None assert settings.LOCAL_UPLOADS_DIR is not None assert settings.LOCAL_AVATARS_DIR is not None avatar_disk_path = os.path.join( settings.LOCAL_AVATARS_DIR, avatar_url_path.split("/")[-2], avatar_url_path.split("/")[-1].split("?")[0], ) if original: return avatar_disk_path.replace(".png", ".original") return avatar_disk_path def make_client(name: str) -> Client: client, _ = Client.objects.get_or_create(name=name) return client def find_key_by_email(address: str) -> Optional[str]: from django.core.mail import outbox key_regex = re.compile("accounts/do_confirm/([a-z0-9]{24})>") for message in reversed(outbox): if address in message.to: match = key_regex.search(message.body) assert match is not None [key] = match.groups() return key return None # nocoverage -- in theory a test might want this case, but none do def message_stream_count(user_profile: UserProfile) -> int: return UserMessage.objects.select_related("message").filter(user_profile=user_profile).count() def most_recent_usermessage(user_profile: UserProfile) -> UserMessage: query = ( UserMessage.objects.select_related("message") .filter(user_profile=user_profile) .order_by("-message") ) return query[0] # Django does LIMIT here def most_recent_message(user_profile: UserProfile) -> Message: usermessage = most_recent_usermessage(user_profile) return usermessage.message def get_subscription(stream_name: str, user_profile: UserProfile) -> Subscription: stream = get_stream(stream_name, user_profile.realm) recipient_id = stream.recipient_id assert recipient_id is not None return Subscription.objects.get( user_profile=user_profile, recipient_id=recipient_id, active=True ) def get_user_messages(user_profile: UserProfile) -> List[Message]: query = ( UserMessage.objects.select_related("message") .filter(user_profile=user_profile) .order_by("message") ) return [um.message for um in query] class DummyHandler(AsyncDjangoHandler): def __init__(self) -> None: self.handler_id = allocate_handler_id(self) dummy_handler = DummyHandler() class HostRequestMock(HttpRequest): """A mock request object where get_host() works. Useful for testing routes that use Zulip's subdomains feature""" # The base class HttpRequest declares GET and POST as immutable # QueryDict objects. The implementation of HostRequestMock # requires POST to be mutable, and we have some use cases that # modify GET, so GET and POST are both redeclared as mutable. GET: QueryDict # type: ignore[assignment] # See previous comment. POST: QueryDict # type: ignore[assignment] # See previous comment. def __init__( self, post_data: Mapping[str, Any] = {}, user_profile: Union[UserProfile, None] = None, remote_server: Optional[RemoteZulipServer] = None, host: str = settings.EXTERNAL_HOST, client_name: Optional[str] = None, meta_data: Optional[Dict[str, Any]] = None, tornado_handler: Optional[AsyncDjangoHandler] = None, path: str = "", ) -> None: self.host = host self.GET = QueryDict(mutable=True) self.method = "" # Convert any integer parameters passed into strings, even # though of course the HTTP API would do so. Ideally, we'd # get rid of this abstraction entirely and just use the HTTP # API directly, but while it exists, we need this code self.POST = QueryDict(mutable=True) for key in post_data: self.POST[key] = str(post_data[key]) self.method = "POST" if meta_data is None: self.META = {"PATH_INFO": "test"} else: self.META = meta_data self.path = path self.user = user_profile or AnonymousUser() self._body = b"" self.content_type = "" RequestNotes.set_notes( self, RequestNotes( client_name="", log_data={}, tornado_handler_id=None if tornado_handler is None else tornado_handler.handler_id, client=get_client(client_name) if client_name is not None else None, remote_server=remote_server, ), ) @property def body(self) -> bytes: return super().body @body.setter def body(self, val: bytes) -> None: self._body = val def get_host(self) -> str: return self.host INSTRUMENTING = os.environ.get("TEST_INSTRUMENT_URL_COVERAGE", "") == "TRUE" INSTRUMENTED_CALLS: List[Dict[str, Any]] = [] UrlFuncT = TypeVar("UrlFuncT", bound=Callable[..., HttpResponseBase]) # TODO: make more specific def append_instrumentation_data(data: Dict[str, Any]) -> None: INSTRUMENTED_CALLS.append(data) def instrument_url(f: UrlFuncT) -> UrlFuncT: # TODO: Type this with ParamSpec to preserve the function signature. if not INSTRUMENTING: # nocoverage -- option is always enabled; should we remove? return f else: def wrapper( self: "ZulipTestCase", url: str, info: object = {}, **kwargs: Union[bool, str] ) -> HttpResponseBase: start = time.time() result = f(self, url, info, **kwargs) delay = time.time() - start test_name = self.id() if "?" in url: url, extra_info = url.split("?", 1) else: extra_info = "" if isinstance(info, HostRequestMock): info = "" elif isinstance(info, bytes): info = "" elif isinstance(info, dict): info = { k: "" if hasattr(v, "read") and callable(v.read) else v for k, v in info.items() } append_instrumentation_data( dict( url=url, status_code=result.status_code, method=f.__name__, delay=delay, extra_info=extra_info, info=info, test_name=test_name, kwargs=kwargs, ) ) return result return cast(UrlFuncT, wrapper) # https://github.com/python/mypy/issues/1927 def write_instrumentation_reports(full_suite: bool, include_webhooks: bool) -> None: if INSTRUMENTING: calls = INSTRUMENTED_CALLS from zproject.urls import urlpatterns, v1_api_and_json_patterns # Find our untested urls. pattern_cnt: Dict[str, int] = collections.defaultdict(int) def re_strip(r: str) -> str: assert r.startswith(r"^") if r.endswith(r"$"): return r[1:-1] else: assert r.endswith(r"\Z") return r[1:-2] def find_patterns(patterns: List[Any], prefixes: List[str]) -> None: for pattern in patterns: find_pattern(pattern, prefixes) def cleanup_url(url: str) -> str: if url.startswith("/"): url = url[1:] if url.startswith("http://testserver/"): url = url[len("http://testserver/") :] if url.startswith("http://zulip.testserver/"): url = url[len("http://zulip.testserver/") :] if url.startswith("http://testserver:9080/"): url = url[len("http://testserver:9080/") :] return url def find_pattern(pattern: Any, prefixes: List[str]) -> None: if isinstance(pattern, type(URLResolver)): return # nocoverage -- shouldn't actually happen if hasattr(pattern, "url_patterns"): return canon_pattern = prefixes[0] + re_strip(pattern.pattern.regex.pattern) cnt = 0 for call in calls: if "pattern" in call: continue url = cleanup_url(call["url"]) for prefix in prefixes: if url.startswith(prefix): match_url = url[len(prefix) :] if pattern.resolve(match_url): if call["status_code"] in [200, 204, 301, 302]: cnt += 1 call["pattern"] = canon_pattern pattern_cnt[canon_pattern] += cnt find_patterns(urlpatterns, ["", "en/", "de/"]) find_patterns(v1_api_and_json_patterns, ["api/v1/", "json/"]) assert len(pattern_cnt) > 100 untested_patterns = {p.replace("\\", "") for p in pattern_cnt if pattern_cnt[p] == 0} exempt_patterns = { # We exempt some patterns that are called via Tornado. "api/v1/events", "api/v1/events/internal", "api/v1/register", # We also exempt some development environment debugging # static content URLs, since the content they point to may # or may not exist. "coverage/(?P.+)", "confirmation_key/", "node-coverage/(?P.+)", "docs/(?P.+)", "casper/(?P.+)", "static/(?P.+)", "flush_caches", "external_content/(?P[^/]+)/(?P[^/]+)", # These are SCIM2 urls overridden from django-scim2 to return Not Implemented. # We actually test them, but it's not being detected as a tested pattern, # possibly due to the use of re_path. TODO: Investigate and get them # recognized as tested. "scim/v2/", "scim/v2/.search", "scim/v2/Bulk", "scim/v2/Me", "scim/v2/ResourceTypes(?:/(?P[^/]+))?", "scim/v2/Schemas(?:/(?P[^/]+))?", "scim/v2/ServiceProviderConfig", "scim/v2/Groups(?:/(?P[^/]+))?", "scim/v2/Groups/.search", *(webhook.url for webhook in WEBHOOK_INTEGRATIONS if not include_webhooks), } untested_patterns -= exempt_patterns var_dir = "var" # TODO make sure path is robust here fn = os.path.join(var_dir, "url_coverage.txt") with open(fn, "wb") as f: for call in calls: f.write(orjson.dumps(call, option=orjson.OPT_APPEND_NEWLINE)) if full_suite: print(f"INFO: URL coverage report is in {fn}") if full_suite and len(untested_patterns): # nocoverage -- test suite error handling print("\nERROR: Some URLs are untested! Here's the list of untested URLs:") for untested_pattern in sorted(untested_patterns): print(f" {untested_pattern}") sys.exit(1) def load_subdomain_token(response: Union["TestHttpResponse", HttpResponse]) -> ExternalAuthDataDict: assert isinstance(response, HttpResponseRedirect) token = response.url.rsplit("/", 1)[1] data = ExternalAuthResult(login_token=token, delete_stored_data=False).data_dict assert data is not None return data FuncT = TypeVar("FuncT", bound=Callable[..., None]) def use_s3_backend(method: FuncT) -> FuncT: @mock_s3 @override_settings(LOCAL_UPLOADS_DIR=None) @override_settings(LOCAL_AVATARS_DIR=None) @override_settings(LOCAL_FILES_DIR=None) def new_method(*args: Any, **kwargs: Any) -> Any: with mock.patch("zerver.lib.upload.upload_backend", S3UploadBackend()): return method(*args, **kwargs) return new_method def create_s3_buckets(*bucket_names: str) -> List[Bucket]: session = boto3.session.Session(settings.S3_KEY, settings.S3_SECRET_KEY) s3 = session.resource("s3") buckets = [s3.create_bucket(Bucket=name) for name in bucket_names] return buckets TestCaseT = TypeVar("TestCaseT", bound="MigrationsTestCase") def use_db_models( method: Callable[[TestCaseT, StateApps], None] ) -> Callable[[TestCaseT, StateApps], None]: # nocoverage def method_patched_with_mock(self: TestCaseT, apps: StateApps) -> None: ArchivedAttachment = apps.get_model("zerver", "ArchivedAttachment") ArchivedMessage = apps.get_model("zerver", "ArchivedMessage") ArchivedUserMessage = apps.get_model("zerver", "ArchivedUserMessage") Attachment = apps.get_model("zerver", "Attachment") BotConfigData = apps.get_model("zerver", "BotConfigData") BotStorageData = apps.get_model("zerver", "BotStorageData") Client = apps.get_model("zerver", "Client") CustomProfileField = apps.get_model("zerver", "CustomProfileField") CustomProfileFieldValue = apps.get_model("zerver", "CustomProfileFieldValue") DefaultStream = apps.get_model("zerver", "DefaultStream") DefaultStreamGroup = apps.get_model("zerver", "DefaultStreamGroup") EmailChangeStatus = apps.get_model("zerver", "EmailChangeStatus") Huddle = apps.get_model("zerver", "Huddle") Message = apps.get_model("zerver", "Message") MultiuseInvite = apps.get_model("zerver", "MultiuseInvite") UserTopic = apps.get_model("zerver", "UserTopic") PreregistrationUser = apps.get_model("zerver", "PreregistrationUser") PushDeviceToken = apps.get_model("zerver", "PushDeviceToken") Reaction = apps.get_model("zerver", "Reaction") Realm = apps.get_model("zerver", "Realm") RealmAuditLog = apps.get_model("zerver", "RealmAuditLog") RealmDomain = apps.get_model("zerver", "RealmDomain") RealmEmoji = apps.get_model("zerver", "RealmEmoji") RealmFilter = apps.get_model("zerver", "RealmFilter") Recipient = apps.get_model("zerver", "Recipient") Recipient.PERSONAL = 1 Recipient.STREAM = 2 Recipient.HUDDLE = 3 ScheduledEmail = apps.get_model("zerver", "ScheduledEmail") ScheduledMessage = apps.get_model("zerver", "ScheduledMessage") Service = apps.get_model("zerver", "Service") Stream = apps.get_model("zerver", "Stream") Subscription = apps.get_model("zerver", "Subscription") UserActivity = apps.get_model("zerver", "UserActivity") UserActivityInterval = apps.get_model("zerver", "UserActivityInterval") UserGroup = apps.get_model("zerver", "UserGroup") UserGroupMembership = apps.get_model("zerver", "UserGroupMembership") UserHotspot = apps.get_model("zerver", "UserHotspot") UserMessage = apps.get_model("zerver", "UserMessage") UserPresence = apps.get_model("zerver", "UserPresence") UserProfile = apps.get_model("zerver", "UserProfile") zerver_models_patch = mock.patch.multiple( "zerver.models", ArchivedAttachment=ArchivedAttachment, ArchivedMessage=ArchivedMessage, ArchivedUserMessage=ArchivedUserMessage, Attachment=Attachment, BotConfigData=BotConfigData, BotStorageData=BotStorageData, Client=Client, CustomProfileField=CustomProfileField, CustomProfileFieldValue=CustomProfileFieldValue, DefaultStream=DefaultStream, DefaultStreamGroup=DefaultStreamGroup, EmailChangeStatus=EmailChangeStatus, Huddle=Huddle, Message=Message, MultiuseInvite=MultiuseInvite, UserTopic=UserTopic, PreregistrationUser=PreregistrationUser, PushDeviceToken=PushDeviceToken, Reaction=Reaction, Realm=Realm, RealmAuditLog=RealmAuditLog, RealmDomain=RealmDomain, RealmEmoji=RealmEmoji, RealmFilter=RealmFilter, Recipient=Recipient, ScheduledEmail=ScheduledEmail, ScheduledMessage=ScheduledMessage, Service=Service, Stream=Stream, Subscription=Subscription, UserActivity=UserActivity, UserActivityInterval=UserActivityInterval, UserGroup=UserGroup, UserGroupMembership=UserGroupMembership, UserHotspot=UserHotspot, UserMessage=UserMessage, UserPresence=UserPresence, UserProfile=UserProfile, ) zerver_test_helpers_patch = mock.patch.multiple( "zerver.lib.test_helpers", Client=Client, Message=Message, Subscription=Subscription, UserMessage=UserMessage, UserProfile=UserProfile, ) zerver_test_classes_patch = mock.patch.multiple( "zerver.lib.test_classes", Client=Client, Message=Message, Realm=Realm, Recipient=Recipient, Stream=Stream, Subscription=Subscription, UserProfile=UserProfile, ) with zerver_models_patch, zerver_test_helpers_patch, zerver_test_classes_patch: method(self, apps) return method_patched_with_mock def create_dummy_file(filename: str) -> str: filepath = os.path.join(settings.TEST_WORKER_DIR, filename) with open(filepath, "w") as f: f.write("zulip!") return filepath def zulip_reaction_info() -> Dict[str, str]: return dict( emoji_name="zulip", emoji_code="zulip", reaction_type="zulip_extra_emoji", ) @contextmanager def mock_queue_publish( method_to_patch: str, **kwargs: object, ) -> Iterator[mock.MagicMock]: inner = mock.MagicMock(**kwargs) # This helper ensures that events published to the queues are # serializable as JSON; unserializable events would make RabbitMQ # crash in production. def verify_serialize( queue_name: str, event: Dict[str, object], processor: Optional[Callable[[object], None]] = None, ) -> None: marshalled_event = orjson.loads(orjson.dumps(event)) assert marshalled_event == event inner(queue_name, event, processor) with mock.patch(method_to_patch, side_effect=verify_serialize): yield inner @contextmanager def timeout_mock(mock_path: str) -> Iterator[None]: # timeout() doesn't work in test environment with database operations # and they don't get committed - so we need to replace it with a mock # that just calls the function. def mock_timeout(seconds: int, func: Callable[[], object]) -> object: return func() with mock.patch(f"{mock_path}.timeout", new=mock_timeout): yield