import base64 import os import re import shutil import tempfile import urllib from contextlib import contextmanager from typing import Any, Dict, Iterable, Iterator, List, Optional, Sequence, Set, Tuple, Union from unittest import mock import orjson from django.apps import apps from django.conf import settings from django.db import connection from django.db.migrations.executor import MigrationExecutor from django.db.migrations.state import StateApps from django.db.utils import IntegrityError from django.http import HttpRequest, HttpResponse from django.test import TestCase from django.test.client import BOUNDARY, MULTIPART_CONTENT, encode_multipart from django.test.testcases import SerializeMixin from django.urls import resolve from django.utils import translation from fakeldap import MockLDAP from two_factor.models import PhoneDevice from zerver.decorator import do_two_factor_login from zerver.lib.actions import ( bulk_add_subscriptions, bulk_remove_subscriptions, check_send_message, check_send_stream_message, gather_subscriptions, ) from zerver.lib.cache import bounce_key_prefix_for_testing from zerver.lib.initial_password import initial_password from zerver.lib.rate_limiter import bounce_redis_key_prefix_for_testing from zerver.lib.sessions import get_session_dict_user from zerver.lib.stream_subscription import get_stream_subscriptions_for_user from zerver.lib.streams import ( create_stream_if_needed, get_default_value_for_history_public_to_subscribers, ) from zerver.lib.test_helpers import find_key_by_email, instrument_url from zerver.lib.users import get_api_key from zerver.lib.validator import check_string from zerver.lib.webhooks.common import get_fixture_http_headers, standardize_headers from zerver.models import ( Client, Message, Realm, Recipient, Stream, Subscription, UserProfile, clear_supported_auth_backends_cache, flush_per_request_caches, get_client, get_display_recipient, get_realm, get_realm_stream, get_stream, get_system_bot, get_user, get_user_by_delivery_email, ) from zerver.openapi.openapi import validate_against_openapi_schema, validate_request from zerver.tornado.event_queue import clear_client_event_queues_for_testing from zilencer.models import get_remote_server_by_uuid class UploadSerializeMixin(SerializeMixin): """ We cannot use override_settings to change upload directory because because settings.LOCAL_UPLOADS_DIR is used in url pattern and urls are compiled only once. Otherwise using a different upload directory for conflicting test cases would have provided better performance while providing the required isolation. """ lockfile = 'var/upload_lock' @classmethod def setUpClass(cls: Any, *args: Any, **kwargs: Any) -> None: if not os.path.exists(cls.lockfile): with open(cls.lockfile, 'w'): # nocoverage - rare locking case pass super().setUpClass(*args, **kwargs) class ZulipTestCase(TestCase): # Ensure that the test system just shows us diffs maxDiff: Optional[int] = None def setUp(self) -> None: super().setUp() self.API_KEYS: Dict[str, str] = {} test_name = self.id() bounce_key_prefix_for_testing(test_name) bounce_redis_key_prefix_for_testing(test_name) def tearDown(self) -> None: super().tearDown() # Important: we need to clear event queues to avoid leaking data to future tests. clear_client_event_queues_for_testing() clear_supported_auth_backends_cache() flush_per_request_caches() translation.activate(settings.LANGUAGE_CODE) # Clean up after using fakeldap in ldap tests: if hasattr(self, 'mock_ldap') and hasattr(self, 'mock_initialize'): if self.mock_ldap is not None: self.mock_ldap.reset() self.mock_initialize.stop() ''' WRAPPER_COMMENT: We wrap calls to self.client.{patch,put,get,post,delete} for various reasons. Some of this has to do with fixing encodings before calling into the Django code. Some of this has to do with providing a future path for instrumentation. Some of it's just consistency. The linter will prevent direct calls to self.client.foo, so the wrapper functions have to fake out the linter by using a local variable called django_client to fool the regext. ''' DEFAULT_SUBDOMAIN = "zulip" TOKENIZED_NOREPLY_REGEX = settings.TOKENIZED_NOREPLY_EMAIL_ADDRESS.format(token="[a-z0-9_]{24}") def set_http_headers(self, kwargs: Dict[str, Any]) -> None: if 'subdomain' in kwargs: kwargs['HTTP_HOST'] = Realm.host_for_subdomain(kwargs['subdomain']) del kwargs['subdomain'] elif 'HTTP_HOST' not in kwargs: kwargs['HTTP_HOST'] = Realm.host_for_subdomain(self.DEFAULT_SUBDOMAIN) # set User-Agent if 'HTTP_AUTHORIZATION' in kwargs: # An API request; use mobile as the default user agent default_user_agent = "ZulipMobile/26.22.145 (iOS 10.3.1)" else: # A webapp request; use a browser User-Agent string. default_user_agent = ("Mozilla/5.0 (Windows NT 10.0; Win64; x64) " + "AppleWebKit/537.36 (KHTML, like Gecko) " + "Chrome/79.0.3945.130 Safari/537.36") if kwargs.get('skip_user_agent'): # Provide a way to disable setting User-Agent if desired. assert 'HTTP_USER_AGENT' not in kwargs del kwargs['skip_user_agent'] elif 'HTTP_USER_AGENT' not in kwargs: kwargs['HTTP_USER_AGENT'] = default_user_agent def extract_api_suffix_url(self, url: str) -> Tuple[str, Dict[str, Any]]: """ Function that extracts the url after `/api/v1` or `/json` and also returns the query data in the url, if there is any. """ url_split = url.split('?') data: Dict[str, Any] = {} if len(url_split) == 2: data = urllib.parse.parse_qs(url_split[1]) url = url_split[0] url = url.replace("/json/", "/").replace("/api/v1/", "/") return (url, data) def validate_api_response_openapi( self, url: str, method: str, result: HttpResponse, data: Union[str, bytes, Dict[str, Any]], http_headers: Dict[str, Any], intentionally_undocumented: bool = False, ) -> None: """ Validates all API responses received by this test against Zulip's API documentation, declared in zerver/openapi/zulip.yaml. This powerful test lets us use Zulip's extensive test coverage of corner cases in the API to ensure that we've properly documented those corner cases. """ if not (url.startswith("/json") or url.startswith("/api/v1")): return try: content = orjson.loads(result.content) except orjson.JSONDecodeError: return json_url = False if url.startswith('/json'): json_url = True url, query_data = self.extract_api_suffix_url(url) if len(query_data) != 0: # In some cases the query parameters are defined in the url itself. In such cases # The `data` argument of our function is not used. Hence get `data` argument # from url. data = query_data response_validated = validate_against_openapi_schema(content, url, method, str(result.status_code)) if response_validated: validate_request(url, method, data, http_headers, json_url, str(result.status_code), intentionally_undocumented=intentionally_undocumented) @instrument_url def client_patch(self, url: str, info: Dict[str, Any]={}, intentionally_undocumented: bool=False, **kwargs: Any) -> HttpResponse: """ We need to urlencode, since Django's function won't do it for us. """ encoded = urllib.parse.urlencode(info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) result = django_client.patch(url, encoded, **kwargs) self.validate_api_response_openapi(url, "patch", result, info, kwargs, intentionally_undocumented=intentionally_undocumented) return result @instrument_url def client_patch_multipart(self, url: str, info: Dict[str, Any]={}, **kwargs: Any) -> HttpResponse: """ Use this for patch requests that have file uploads or that need some sort of multi-part content. In the future Django's test client may become a bit more flexible, so we can hopefully eliminate this. (When you post with the Django test client, it deals with MULTIPART_CONTENT automatically, but not patch.) """ encoded = encode_multipart(BOUNDARY, info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) result = django_client.patch( url, encoded, content_type=MULTIPART_CONTENT, **kwargs) self.validate_api_response_openapi(url, "patch", result, info, kwargs) return result @instrument_url def client_put(self, url: str, info: Dict[str, Any]={}, **kwargs: Any) -> HttpResponse: encoded = urllib.parse.urlencode(info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) return django_client.put(url, encoded, **kwargs) @instrument_url def client_delete(self, url: str, info: Dict[str, Any]={}, **kwargs: Any) -> HttpResponse: encoded = urllib.parse.urlencode(info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) result = django_client.delete(url, encoded, **kwargs) self.validate_api_response_openapi(url, "delete", result, info, kwargs) return result @instrument_url def client_options(self, url: str, info: Dict[str, Any]={}, **kwargs: Any) -> HttpResponse: encoded = urllib.parse.urlencode(info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) return django_client.options(url, encoded, **kwargs) @instrument_url def client_head(self, url: str, info: Dict[str, Any]={}, **kwargs: Any) -> HttpResponse: encoded = urllib.parse.urlencode(info) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) return django_client.head(url, encoded, **kwargs) @instrument_url def client_post( self, url: str, info: Union[str, bytes, Dict[str, Any]] = {}, **kwargs: Any, ) -> HttpResponse: intentionally_undocumented: bool = kwargs.pop("intentionally_undocumented", False) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) result = django_client.post(url, info, **kwargs) self.validate_api_response_openapi(url, "post", result, info, kwargs, intentionally_undocumented=intentionally_undocumented) return result @instrument_url def client_post_request(self, url: str, req: Any) -> HttpResponse: """ We simulate hitting an endpoint here, although we actually resolve the URL manually and hit the view directly. We have this helper method to allow our instrumentation to work for /notify_tornado and future similar methods that require doing funny things to a request object. """ match = resolve(url) return match.func(req) @instrument_url def client_get(self, url: str, info: Dict[str, Any] = {}, **kwargs: Any) -> HttpResponse: intentionally_undocumented: bool = kwargs.pop("intentionally_undocumented", False) django_client = self.client # see WRAPPER_COMMENT self.set_http_headers(kwargs) result = django_client.get(url, info, **kwargs) self.validate_api_response_openapi(url, "get", result, info, kwargs, intentionally_undocumented=intentionally_undocumented) return result example_user_map = dict( hamlet='hamlet@zulip.com', cordelia='cordelia@zulip.com', iago='iago@zulip.com', prospero='prospero@zulip.com', othello='othello@zulip.com', AARON='AARON@zulip.com', aaron='aaron@zulip.com', ZOE='ZOE@zulip.com', polonius='polonius@zulip.com', desdemona='desdemona@zulip.com', webhook_bot='webhook-bot@zulip.com', welcome_bot='welcome-bot@zulip.com', outgoing_webhook_bot='outgoing-webhook@zulip.com', default_bot='default-bot@zulip.com', ) mit_user_map = dict( sipbtest="sipbtest@mit.edu", starnine="starnine@mit.edu", espuser="espuser@mit.edu", ) lear_user_map = dict( cordelia="cordelia@zulip.com", king="king@lear.org", ) # Non-registered test users nonreg_user_map = dict( test='test@zulip.com', test1='test1@zulip.com', alice='alice@zulip.com', newuser='newuser@zulip.com', bob='bob@zulip.com', cordelia='cordelia@zulip.com', newguy='newguy@zulip.com', me='me@zulip.com', ) example_user_ldap_username_map = dict( hamlet='hamlet', cordelia='cordelia', # aaron's uid in our test directory is "letham". aaron='letham', ) def nonreg_user(self, name: str) -> UserProfile: email = self.nonreg_user_map[name] return get_user_by_delivery_email(email, get_realm("zulip")) def example_user(self, name: str) -> UserProfile: email = self.example_user_map[name] return get_user_by_delivery_email(email, get_realm('zulip')) def mit_user(self, name: str) -> UserProfile: email = self.mit_user_map[name] return get_user(email, get_realm('zephyr')) def lear_user(self, name: str) -> UserProfile: email = self.lear_user_map[name] return get_user(email, get_realm('lear')) def nonreg_email(self, name: str) -> str: return self.nonreg_user_map[name] def example_email(self, name: str) -> str: return self.example_user_map[name] def mit_email(self, name: str) -> str: return self.mit_user_map[name] def notification_bot(self) -> UserProfile: return get_system_bot(settings.NOTIFICATION_BOT) def create_test_bot(self, short_name: str, user_profile: UserProfile, full_name: str='Foo Bot', **extras: Any) -> UserProfile: self.login_user(user_profile) bot_info = { 'short_name': short_name, 'full_name': full_name, } bot_info.update(extras) result = self.client_post("/json/bots", bot_info) self.assert_json_success(result) bot_email = f'{short_name}-bot@zulip.testserver' bot_profile = get_user(bot_email, user_profile.realm) return bot_profile def fail_to_create_test_bot( self, short_name: str, user_profile: UserProfile, full_name: str='Foo Bot', *, assert_json_error_msg: str, **extras: Any, ) -> None: self.login_user(user_profile) bot_info = { 'short_name': short_name, 'full_name': full_name, } bot_info.update(extras) result = self.client_post("/json/bots", bot_info) self.assert_json_error(result, assert_json_error_msg) def login_with_return(self, email: str, password: Optional[str]=None, **kwargs: Any) -> HttpResponse: if password is None: password = initial_password(email) result = self.client_post('/accounts/login/', {'username': email, 'password': password}, **kwargs) self.assertNotEqual(result.status_code, 500) return result def login(self, name: str) -> None: ''' Use this for really simple tests where you just need to be logged in as some user, but don't need the actual user object for anything else. Try to use 'hamlet' for non-admins and 'iago' for admins: self.login('hamlet') Try to use 'cordelia' or 'othello' as "other" users. ''' assert '@' not in name, 'use login_by_email for email logins' user = self.example_user(name) self.login_user(user) def login_by_email(self, email: str, password: str) -> None: realm = get_realm("zulip") self.assertTrue( self.client.login( username=email, password=password, realm=realm, ), ) def assert_login_failure(self, email: str, password: str) -> None: realm = get_realm("zulip") self.assertFalse( self.client.login( username=email, password=password, realm=realm, ), ) def login_user(self, user_profile: UserProfile) -> None: email = user_profile.delivery_email realm = user_profile.realm password = initial_password(email) self.assertTrue(self.client.login(username=email, password=password, realm=realm)) def login_2fa(self, user_profile: UserProfile) -> None: """ We need this function to call request.session.save(). do_two_factor_login doesn't save session; in normal request-response cycle this doesn't matter because middleware will save the session when it finds it dirty; however,in tests we will have to do that explicitly. """ request = HttpRequest() request.session = self.client.session request.user = user_profile do_two_factor_login(request, user_profile) request.session.save() def logout(self) -> None: self.client.logout() def register(self, email: str, password: str, **kwargs: Any) -> HttpResponse: self.client_post('/accounts/home/', {'email': email}, **kwargs) return self.submit_reg_form_for_user(email, password, **kwargs) def submit_reg_form_for_user( self, email: str, password: str, realm_name: str="Zulip Test", realm_subdomain: str="zuliptest", from_confirmation: str='', full_name: Optional[str]=None, timezone: str='', realm_in_root_domain: Optional[str]=None, default_stream_groups: Sequence[str]=[], source_realm: str='', key: Optional[str]=None, **kwargs: Any) -> HttpResponse: """ Stage two of the two-step registration process. If things are working correctly the account should be fully registered after this call. You can pass the HTTP_HOST variable for subdomains via kwargs. """ if full_name is None: full_name = email.replace("@", "_") payload = { 'full_name': full_name, 'password': password, 'realm_name': realm_name, 'realm_subdomain': realm_subdomain, 'key': key if key is not None else find_key_by_email(email), 'timezone': timezone, 'terms': True, 'from_confirmation': from_confirmation, 'default_stream_group': default_stream_groups, 'source_realm': source_realm, } if realm_in_root_domain is not None: payload['realm_in_root_domain'] = realm_in_root_domain return self.client_post('/accounts/register/', payload, **kwargs) def get_confirmation_url_from_outbox( self, email_address: str, *, url_pattern: Optional[str]=None, ) -> str: from django.core.mail import outbox if url_pattern is None: # This is a bit of a crude heuristic, but good enough for most tests. url_pattern = settings.EXTERNAL_HOST + r"(\S+)>" for message in reversed(outbox): if any( addr == email_address or addr.endswith(f" <{email_address}>") for addr in message.to ): match = re.search(url_pattern, message.body) assert match is not None [confirmation_url] = match.groups() return confirmation_url else: raise AssertionError("Couldn't find a confirmation email.") def encode_uuid(self, uuid: str) -> str: """ identifier: Can be an email or a remote server uuid. """ if uuid in self.API_KEYS: api_key = self.API_KEYS[uuid] else: api_key = get_remote_server_by_uuid(uuid).api_key self.API_KEYS[uuid] = api_key return self.encode_credentials(uuid, api_key) def encode_user(self, user: UserProfile) -> str: email = user.delivery_email api_key = user.api_key return self.encode_credentials(email, api_key) def encode_email(self, email: str, realm: str="zulip") -> str: # TODO: use encode_user where possible assert '@' in email user = get_user_by_delivery_email(email, get_realm(realm)) api_key = get_api_key(user) return self.encode_credentials(email, api_key) def encode_credentials(self, identifier: str, api_key: str) -> str: """ identifier: Can be an email or a remote server uuid. """ credentials = f"{identifier}:{api_key}" return 'Basic ' + base64.b64encode(credentials.encode('utf-8')).decode('utf-8') def uuid_get(self, identifier: str, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_uuid(identifier) return self.client_get(*args, **kwargs) def uuid_post(self, identifier: str, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_uuid(identifier) return self.client_post(*args, **kwargs) def api_get(self, user: UserProfile, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_user(user) return self.client_get(*args, **kwargs) def api_post(self, user: UserProfile, *args: Any, intentionally_undocumented: bool=False, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_user(user) return self.client_post(*args, intentionally_undocumented=intentionally_undocumented, **kwargs) def api_patch(self, user: UserProfile, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_user(user) return self.client_patch(*args, **kwargs) def api_delete(self, user: UserProfile, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_user(user) return self.client_delete(*args, **kwargs) def get_streams(self, user_profile: UserProfile) -> List[str]: """ Helper function to get the stream names for a user """ subs = get_stream_subscriptions_for_user(user_profile).filter( active=True, ) return [ check_string("recipient", get_display_recipient(sub.recipient)) for sub in subs ] def send_personal_message(self, from_user: UserProfile, to_user: UserProfile, content: str="test content", sending_client_name: str="test suite") -> int: recipient_list = [to_user.id] (sending_client, _) = Client.objects.get_or_create(name=sending_client_name) return check_send_message( from_user, sending_client, 'private', recipient_list, None, content, ) def send_huddle_message(self, from_user: UserProfile, to_users: List[UserProfile], content: str="test content", sending_client_name: str="test suite") -> int: to_user_ids = [u.id for u in to_users] assert(len(to_user_ids) >= 2) (sending_client, _) = Client.objects.get_or_create(name=sending_client_name) return check_send_message( from_user, sending_client, 'private', to_user_ids, None, content, ) def send_stream_message(self, sender: UserProfile, stream_name: str, content: str="test content", topic_name: str="test", recipient_realm: Optional[Realm]=None, sending_client_name: str="test suite") -> int: (sending_client, _) = Client.objects.get_or_create(name=sending_client_name) return check_send_stream_message( sender=sender, client=sending_client, stream_name=stream_name, topic=topic_name, body=content, realm=recipient_realm, ) def get_messages_response(self, anchor: Union[int, str]=1, num_before: int=100, num_after: int=100, use_first_unread_anchor: bool=False) -> Dict[str, List[Dict[str, Any]]]: post_params = {"anchor": anchor, "num_before": num_before, "num_after": num_after, "use_first_unread_anchor": orjson.dumps(use_first_unread_anchor).decode()} result = self.client_get("/json/messages", dict(post_params)) data = result.json() return data def get_messages(self, anchor: Union[str, int]=1, num_before: int=100, num_after: int=100, use_first_unread_anchor: bool=False) -> List[Dict[str, Any]]: data = self.get_messages_response(anchor, num_before, num_after, use_first_unread_anchor) return data['messages'] def users_subscribed_to_stream(self, stream_name: str, realm: Realm) -> List[UserProfile]: stream = Stream.objects.get(name=stream_name, realm=realm) recipient = Recipient.objects.get(type_id=stream.id, type=Recipient.STREAM) subscriptions = Subscription.objects.filter(recipient=recipient, active=True) return [subscription.user_profile for subscription in subscriptions] def assert_url_serves_contents_of_file(self, url: str, result: bytes) -> None: response = self.client_get(url) data = b"".join(response.streaming_content) self.assertEqual(result, data) def assert_json_success(self, result: HttpResponse) -> Dict[str, Any]: """ Successful POSTs return a 200 and JSON of the form {"result": "success", "msg": ""}. """ try: json = orjson.loads(result.content) except Exception: # nocoverage json = {'msg': "Error parsing JSON in response!"} self.assertEqual(result.status_code, 200, json['msg']) self.assertEqual(json.get("result"), "success") # We have a msg key for consistency with errors, but it typically has an # empty value. self.assertIn("msg", json) self.assertNotEqual(json["msg"], "Error parsing JSON in response!") return json def get_json_error(self, result: HttpResponse, status_code: int=400) -> Dict[str, Any]: try: json = orjson.loads(result.content) except Exception: # nocoverage json = {'msg': "Error parsing JSON in response!"} self.assertEqual(result.status_code, status_code, msg=json.get('msg')) self.assertEqual(json.get("result"), "error") return json['msg'] def assert_json_error(self, result: HttpResponse, msg: str, status_code: int=400) -> None: """ Invalid POSTs return an error status code and JSON of the form {"result": "error", "msg": "reason"}. """ self.assertEqual(self.get_json_error(result, status_code=status_code), msg) def assert_length(self, items: List[Any], count: int) -> None: actual_count = len(items) if actual_count != count: # nocoverage print('ITEMS:\n') for item in items: print(item) print(f"\nexpected length: {count}\nactual length: {actual_count}") raise AssertionError('List is unexpected size!') def assert_json_error_contains(self, result: HttpResponse, msg_substring: str, status_code: int=400) -> None: self.assertIn(msg_substring, self.get_json_error(result, status_code=status_code)) def assert_in_response(self, substring: str, response: HttpResponse) -> None: self.assertIn(substring, response.content.decode('utf-8')) def assert_in_success_response(self, substrings: List[str], response: HttpResponse) -> None: self.assertEqual(response.status_code, 200) decoded = response.content.decode('utf-8') for substring in substrings: self.assertIn(substring, decoded) def assert_not_in_success_response(self, substrings: List[str], response: HttpResponse) -> None: self.assertEqual(response.status_code, 200) decoded = response.content.decode('utf-8') for substring in substrings: self.assertNotIn(substring, decoded) def assert_logged_in_user_id(self, user_id: Optional[int]) -> None: """ Verifies the user currently logged in for the test client has the provided user_id. Pass None to verify no user is logged in. """ self.assertEqual(get_session_dict_user(self.client.session), user_id) def webhook_fixture_data(self, type: str, action: str, file_type: str='json') -> str: fn = os.path.join( os.path.dirname(__file__), f"../webhooks/{type}/fixtures/{action}.{file_type}", ) return open(fn).read() def fixture_file_name(self, file_name: str, type: str='') -> str: return os.path.join( os.path.dirname(__file__), f"../tests/fixtures/{type}/{file_name}", ) def fixture_data(self, file_name: str, type: str='') -> str: fn = self.fixture_file_name(file_name, type) return open(fn).read() def make_stream(self, stream_name: str, realm: Optional[Realm]=None, invite_only: bool=False, is_web_public: bool=False, history_public_to_subscribers: Optional[bool]=None) -> Stream: if realm is None: realm = get_realm('zulip') history_public_to_subscribers = get_default_value_for_history_public_to_subscribers( realm, invite_only, history_public_to_subscribers) try: stream = Stream.objects.create( realm=realm, name=stream_name, invite_only=invite_only, is_web_public=is_web_public, history_public_to_subscribers=history_public_to_subscribers, ) except IntegrityError: # nocoverage -- this is for bugs in the tests raise Exception(f''' {stream_name} already exists Please call make_stream with a stream name that is not already in use.''') recipient = Recipient.objects.create(type_id=stream.id, type=Recipient.STREAM) stream.recipient = recipient stream.save(update_fields=["recipient"]) return stream INVALID_STREAM_ID = 999999 def get_stream_id(self, name: str, realm: Optional[Realm]=None) -> int: if not realm: realm = get_realm('zulip') try: stream = get_realm_stream(name, realm.id) except Stream.DoesNotExist: return self.INVALID_STREAM_ID return stream.id # Subscribe to a stream directly def subscribe(self, user_profile: UserProfile, stream_name: str) -> Stream: try: stream = get_stream(stream_name, user_profile.realm) from_stream_creation = False except Stream.DoesNotExist: stream, from_stream_creation = create_stream_if_needed(user_profile.realm, stream_name) bulk_add_subscriptions([stream], [user_profile], from_stream_creation=from_stream_creation) return stream def unsubscribe(self, user_profile: UserProfile, stream_name: str) -> None: client = get_client("website") stream = get_stream(stream_name, user_profile.realm) bulk_remove_subscriptions([user_profile], [stream], client) # Subscribe to a stream by making an API request def common_subscribe_to_streams(self, user: UserProfile, streams: Iterable[str], extra_post_data: Dict[str, Any]={}, invite_only: bool=False, is_web_public: bool=False, allow_fail: bool=False, **kwargs: Any) -> HttpResponse: post_data = {'subscriptions': orjson.dumps([{"name": stream} for stream in streams]).decode(), 'is_web_public': orjson.dumps(is_web_public).decode(), 'invite_only': orjson.dumps(invite_only).decode()} post_data.update(extra_post_data) result = self.api_post(user, "/api/v1/users/me/subscriptions", post_data, **kwargs) if not allow_fail: self.assert_json_success(result) return result def check_user_subscribed_only_to_streams(self, user_name: str, streams: List[Stream]) -> None: streams = sorted(streams, key=lambda x: x.name) subscribed_streams = gather_subscriptions(self.nonreg_user(user_name))[0] self.assertEqual(len(subscribed_streams), len(streams)) for x, y in zip(subscribed_streams, streams): self.assertEqual(x["name"], y.name) def send_webhook_payload( self, user_profile: UserProfile, url: str, payload: Union[str, Dict[str, Any]], **post_params: Any, ) -> Message: """ Send a webhook payload to the server, and verify that the post is successful. This is a pretty low-level function. For most use cases see the helpers that call this function, which do additional checks. Occasionally tests will call this directly, for unique situations like having multiple messages go to a stream, where the other helper functions are a bit too rigid, and you'll want the test itself do various assertions. Even in those cases, you're often better to simply call client_post and assert_json_success. If the caller expects a message to be sent to a stream, the caller should make sure the user is subscribed. """ prior_msg = self.get_last_message() result = self.client_post(url, payload, **post_params) self.assert_json_success(result) # Check the correct message was sent msg = self.get_last_message() if msg.id == prior_msg.id: raise Exception(''' Your test code called an endpoint that did not write any new messages. It is probably broken (but still returns 200 due to exception handling). One possible gotcha is that you forgot to subscribe the test user to the stream that the webhook sends to. ''') # nocoverage self.assertEqual(msg.sender.email, user_profile.email) return msg def get_last_message(self) -> Message: return Message.objects.latest('id') def get_second_to_last_message(self) -> Message: return Message.objects.all().order_by('-id')[1] @contextmanager def simulated_markdown_failure(self) -> Iterator[None]: ''' This raises a failure inside of the try/except block of markdown.__init__.do_convert. ''' with \ self.settings(ERROR_BOT=None), \ mock.patch('zerver.lib.markdown.timeout', side_effect=KeyError('foo')), \ mock.patch('zerver.lib.markdown.markdown_logger'): yield def create_default_device(self, user_profile: UserProfile, number: str="+12125550100") -> None: phone_device = PhoneDevice(user=user_profile, name='default', confirmed=True, number=number, key='abcd', method='sms') phone_device.save() def rm_tree(self, path: str) -> None: if os.path.exists(path): shutil.rmtree(path) def make_import_output_dir(self, exported_from: str) -> str: output_dir = tempfile.mkdtemp(dir=settings.TEST_WORKER_DIR, prefix="test-" + exported_from + "-import-") os.makedirs(output_dir, exist_ok=True) return output_dir def get_set(self, data: List[Dict[str, Any]], field: str) -> Set[str]: values = {r[field] for r in data} return values def find_by_id(self, data: List[Dict[str, Any]], db_id: int) -> Dict[str, Any]: return [ r for r in data if r['id'] == db_id][0] def init_default_ldap_database(self) -> None: """ Takes care of the mock_ldap setup, loads a directory from zerver/tests/fixtures/ldap/directory.json with various entries to be used by tests. If a test wants to specify its own directory, it can just replace self.mock_ldap.directory with its own content, but in most cases it should be enough to use change_user_attr to make simple modifications to the pre-loaded directory. If new user entries are needed to test for some additional unusual scenario, it's most likely best to add that to directory.json. """ directory = orjson.loads(self.fixture_data("directory.json", type="ldap")) for dn, attrs in directory.items(): if 'uid' in attrs: # Generate a password for the ldap account: attrs['userPassword'] = [self.ldap_password(attrs['uid'][0])] # Load binary attributes. If in "directory", an attribute as its value # has a string starting with "file:", the rest of the string is assumed # to be a path to the file from which binary data should be loaded, # as the actual value of the attribute in ldap. for attr, value in attrs.items(): if isinstance(value, str) and value.startswith("file:"): with open(value[5:], 'rb') as f: attrs[attr] = [f.read()] ldap_patcher = mock.patch('django_auth_ldap.config.ldap.initialize') self.mock_initialize = ldap_patcher.start() self.mock_ldap = MockLDAP(directory) self.mock_initialize.return_value = self.mock_ldap def change_ldap_user_attr(self, username: str, attr_name: str, attr_value: Union[str, bytes], binary: bool=False) -> None: """ Method for changing the value of an attribute of a user entry in the mock directory. Use option binary=True if you want binary data to be loaded into the attribute from a file specified at attr_value. This changes the attribute only for the specific test function that calls this method, and is isolated from other tests. """ dn = f"uid={username},ou=users,dc=zulip,dc=com" if binary: with open(attr_value, "rb") as f: # attr_value should be a path to the file with the binary data data: Union[str, bytes] = f.read() else: data = attr_value self.mock_ldap.directory[dn][attr_name] = [data] def ldap_username(self, username: str) -> str: """ Maps zulip username to the name of the corresponding ldap user in our test directory at zerver/tests/fixtures/ldap/directory.json, if the ldap user exists. """ return self.example_user_ldap_username_map[username] def ldap_password(self, uid: str) -> str: return f"{uid}_ldap_password" class WebhookTestCase(ZulipTestCase): """ Common for all webhooks tests Override below class attributes and run send_and_test_message If you create your url in uncommon way you can override build_webhook_url method In case that you need modify body or create it without using fixture you can also override get_body method """ STREAM_NAME: Optional[str] = None TEST_USER_EMAIL = 'webhook-bot@zulip.com' URL_TEMPLATE: str FIXTURE_DIR_NAME: Optional[str] = None @property def test_user(self) -> UserProfile: return get_user(self.TEST_USER_EMAIL, get_realm("zulip")) def setUp(self) -> None: super().setUp() self.url = self.build_webhook_url() def api_stream_message(self, user: UserProfile, *args: Any, **kwargs: Any) -> HttpResponse: kwargs['HTTP_AUTHORIZATION'] = self.encode_user(user) return self.check_webhook(*args, **kwargs) def check_webhook( self, fixture_name: str, expected_topic: str, expected_message: str, content_type: Optional[str]="application/json", **kwargs: Any, ) -> None: """ check_webhook is the main way to test "normal" webhooks that work by receiving a payload from a third party and then writing some message to a Zulip stream. We use `fixture_name` to find the payload data in of our test fixtures. Then we verify that a message gets sent to a stream: self.STREAM_NAME: stream name expected_topic: topic expected_message: content We simulate the delivery of the payload with `content_type`, and you can pass other headers via `kwargs`. For the rare cases of webhooks actually sending private messages, see send_and_test_private_message. """ assert self.STREAM_NAME is not None self.subscribe(self.test_user, self.STREAM_NAME) payload = self.get_payload(fixture_name) if content_type is not None: kwargs['content_type'] = content_type if self.FIXTURE_DIR_NAME is not None: headers = get_fixture_http_headers(self.FIXTURE_DIR_NAME, fixture_name) headers = standardize_headers(headers) kwargs.update(headers) msg = self.send_webhook_payload( self.test_user, self.url, payload, **kwargs, ) self.assert_stream_message( message=msg, stream_name=self.STREAM_NAME, topic_name=expected_topic, content=expected_message, ) def assert_stream_message( self, message: Message, stream_name: str, topic_name: str, content: str, ) -> None: self.assertEqual(get_display_recipient(message.recipient), stream_name) self.assertEqual(message.topic_name(), topic_name) self.assertEqual(message.content, content) def send_and_test_private_message( self, fixture_name: str, expected_message: str, content_type: str = "application/json", **kwargs: Any, ) -> Message: """ For the rare cases that you are testing a webhook that sends private messages, use this function. Most webhooks send to streams, and you will want to look at check_webhook. """ payload = self.get_payload(fixture_name) kwargs['content_type'] = content_type if self.FIXTURE_DIR_NAME is not None: headers = get_fixture_http_headers(self.FIXTURE_DIR_NAME, fixture_name) headers = standardize_headers(headers) kwargs.update(headers) # The sender profile shouldn't be passed any further in kwargs, so we pop it. sender = kwargs.pop('sender', self.test_user) msg = self.send_webhook_payload( sender, self.url, payload, **kwargs, ) self.assertEqual(msg.content, expected_message) return msg def build_webhook_url(self, *args: Any, **kwargs: Any) -> str: url = self.URL_TEMPLATE if url.find("api_key") >= 0: api_key = get_api_key(self.test_user) url = self.URL_TEMPLATE.format(api_key=api_key, stream=self.STREAM_NAME) else: url = self.URL_TEMPLATE.format(stream=self.STREAM_NAME) has_arguments = kwargs or args if has_arguments and url.find('?') == -1: url = f"{url}?" # nocoverage else: url = f"{url}&" for key, value in kwargs.items(): url = f"{url}{key}={value}&" for arg in args: url = f"{url}{arg}&" return url[:-1] if has_arguments else url def get_payload(self, fixture_name: str) -> Union[str, Dict[str, str]]: """ Generally webhooks that override this should return dicts.""" return self.get_body(fixture_name) def get_body(self, fixture_name: str) -> str: assert self.FIXTURE_DIR_NAME is not None body = self.webhook_fixture_data(self.FIXTURE_DIR_NAME, fixture_name) # fail fast if we don't have valid json orjson.loads(body) return body class MigrationsTestCase(ZulipTestCase): # nocoverage """ Test class for database migrations inspired by this blog post: https://www.caktusgroup.com/blog/2016/02/02/writing-unit-tests-django-migrations/ Documented at https://zulip.readthedocs.io/en/latest/subsystems/schema-migrations.html """ @property def app(self) -> str: return apps.get_containing_app_config(type(self).__module__).name migrate_from: Optional[str] = None migrate_to: Optional[str] = None def setUp(self) -> None: assert self.migrate_from and self.migrate_to, \ f"TestCase '{type(self).__name__}' must define migrate_from and migrate_to properties" migrate_from: List[Tuple[str, str]] = [(self.app, self.migrate_from)] migrate_to: List[Tuple[str, str]] = [(self.app, self.migrate_to)] executor = MigrationExecutor(connection) old_apps = executor.loader.project_state(migrate_from).apps # Reverse to the original migration executor.migrate(migrate_from) self.setUpBeforeMigration(old_apps) # Run the migration to test executor = MigrationExecutor(connection) executor.loader.build_graph() # reload. executor.migrate(migrate_to) self.apps = executor.loader.project_state(migrate_to).apps def setUpBeforeMigration(self, apps: StateApps) -> None: pass # nocoverage