From 9cd8fecdc5cb2bb4064410ebc8e125551a617820 Mon Sep 17 00:00:00 2001 From: Andrew Morgan Date: Wed, 8 Mar 2023 15:42:24 +0000 Subject: Move Account Validity callbacks to a dedicated file Spreading module callback registration across the codebase is both a bit messy and makes it unclear where a user should register callbacks if they want to define a new class of callbacks. Consolidating these under the synapse.module_api module cleans things up a bit, puts related code in the same place and makes it much more obvious how to extend it. --- synapse/handlers/account_validity.py | 99 +++------------------- synapse/module_api/__init__.py | 18 ++-- synapse/module_api/callbacks/__init__.py | 24 ++++++ .../callbacks/account_validity_callbacks.py | 93 ++++++++++++++++++++ synapse/rest/admin/users.py | 17 ++-- synapse/server.py | 5 ++ 6 files changed, 153 insertions(+), 103 deletions(-) create mode 100644 synapse/module_api/callbacks/__init__.py create mode 100644 synapse/module_api/callbacks/account_validity_callbacks.py (limited to 'synapse') diff --git a/synapse/handlers/account_validity.py b/synapse/handlers/account_validity.py index 33e45e3a11..4aa4ebf7e4 100644 --- a/synapse/handlers/account_validity.py +++ b/synapse/handlers/account_validity.py @@ -15,9 +15,7 @@ import email.mime.multipart import email.utils import logging -from typing import TYPE_CHECKING, Awaitable, Callable, List, Optional, Tuple - -from twisted.web.http import Request +from typing import TYPE_CHECKING, List, Optional, Tuple from synapse.api.errors import AuthError, StoreError, SynapseError from synapse.metrics.background_process_metrics import wrap_as_background_process @@ -30,25 +28,17 @@ if TYPE_CHECKING: logger = logging.getLogger(__name__) -# Types for callbacks to be registered via the module api -IS_USER_EXPIRED_CALLBACK = Callable[[str], Awaitable[Optional[bool]]] -ON_USER_REGISTRATION_CALLBACK = Callable[[str], Awaitable] -# Temporary hooks to allow for a transition from `/_matrix/client` endpoints -# to `/_synapse/client/account_validity`. See `register_account_validity_callbacks`. -ON_LEGACY_SEND_MAIL_CALLBACK = Callable[[str], Awaitable] -ON_LEGACY_RENEW_CALLBACK = Callable[[str], Awaitable[Tuple[bool, bool, int]]] -ON_LEGACY_ADMIN_REQUEST = Callable[[Request], Awaitable] - class AccountValidityHandler: def __init__(self, hs: "HomeServer"): self.hs = hs self.config = hs.config - self.store = self.hs.get_datastores().main - self.send_email_handler = self.hs.get_send_email_handler() - self.clock = self.hs.get_clock() + self.store = hs.get_datastores().main + self.send_email_handler = hs.get_send_email_handler() + self.clock = hs.get_clock() - self._app_name = self.hs.config.email.email_app_name + self._app_name = hs.config.email.email_app_name + self._module_api_callbacks = hs.get_module_api_callbacks().account_validity self._account_validity_enabled = ( hs.config.account_validity.account_validity_enabled @@ -78,69 +68,6 @@ class AccountValidityHandler: if hs.config.worker.run_background_tasks: self.clock.looping_call(self._send_renewal_emails, 30 * 60 * 1000) - self._is_user_expired_callbacks: List[IS_USER_EXPIRED_CALLBACK] = [] - self._on_user_registration_callbacks: List[ON_USER_REGISTRATION_CALLBACK] = [] - self._on_legacy_send_mail_callback: Optional[ - ON_LEGACY_SEND_MAIL_CALLBACK - ] = None - self._on_legacy_renew_callback: Optional[ON_LEGACY_RENEW_CALLBACK] = None - - # The legacy admin requests callback isn't a protected attribute because we need - # to access it from the admin servlet, which is outside of this handler. - self.on_legacy_admin_request_callback: Optional[ON_LEGACY_ADMIN_REQUEST] = None - - def register_account_validity_callbacks( - self, - is_user_expired: Optional[IS_USER_EXPIRED_CALLBACK] = None, - on_user_registration: Optional[ON_USER_REGISTRATION_CALLBACK] = None, - on_legacy_send_mail: Optional[ON_LEGACY_SEND_MAIL_CALLBACK] = None, - on_legacy_renew: Optional[ON_LEGACY_RENEW_CALLBACK] = None, - on_legacy_admin_request: Optional[ON_LEGACY_ADMIN_REQUEST] = None, - ) -> None: - """Register callbacks from module for each hook.""" - if is_user_expired is not None: - self._is_user_expired_callbacks.append(is_user_expired) - - if on_user_registration is not None: - self._on_user_registration_callbacks.append(on_user_registration) - - # The builtin account validity feature exposes 3 endpoints (send_mail, renew, and - # an admin one). As part of moving the feature into a module, we need to change - # the path from /_matrix/client/unstable/account_validity/... to - # /_synapse/client/account_validity, because: - # - # * the feature isn't part of the Matrix spec thus shouldn't live under /_matrix - # * the way we register servlets means that modules can't register resources - # under /_matrix/client - # - # We need to allow for a transition period between the old and new endpoints - # in order to allow for clients to update (and for emails to be processed). - # - # Once the email-account-validity module is loaded, it will take control of account - # validity by moving the rows from our `account_validity` table into its own table. - # - # Therefore, we need to allow modules (in practice just the one implementing the - # email-based account validity) to temporarily hook into the legacy endpoints so we - # can route the traffic coming into the old endpoints into the module, which is - # why we have the following three temporary hooks. - if on_legacy_send_mail is not None: - if self._on_legacy_send_mail_callback is not None: - raise RuntimeError("Tried to register on_legacy_send_mail twice") - - self._on_legacy_send_mail_callback = on_legacy_send_mail - - if on_legacy_renew is not None: - if self._on_legacy_renew_callback is not None: - raise RuntimeError("Tried to register on_legacy_renew twice") - - self._on_legacy_renew_callback = on_legacy_renew - - if on_legacy_admin_request is not None: - if self.on_legacy_admin_request_callback is not None: - raise RuntimeError("Tried to register on_legacy_admin_request twice") - - self.on_legacy_admin_request_callback = on_legacy_admin_request - async def is_user_expired(self, user_id: str) -> bool: """Checks if a user has expired against third-party modules. @@ -150,7 +77,7 @@ class AccountValidityHandler: Returns: Whether the user has expired. """ - for callback in self._is_user_expired_callbacks: + for callback in self._module_api_callbacks.is_user_expired_callbacks: expired = await delay_cancellation(callback(user_id)) if expired is not None: return expired @@ -168,7 +95,7 @@ class AccountValidityHandler: Args: user_id: The ID of the newly registered user. """ - for callback in self._on_user_registration_callbacks: + for callback in self._module_api_callbacks.on_user_registration_callbacks: await callback(user_id) @wrap_as_background_process("send_renewals") @@ -198,8 +125,8 @@ class AccountValidityHandler: """ # If a module supports sending a renewal email from here, do that, otherwise do # the legacy dance. - if self._on_legacy_send_mail_callback is not None: - await self._on_legacy_send_mail_callback(user_id) + if self._module_api_callbacks.on_legacy_send_mail_callback is not None: + await self._module_api_callbacks.on_legacy_send_mail_callback(user_id) return if not self._account_validity_renew_by_email_enabled: @@ -336,8 +263,10 @@ class AccountValidityHandler: """ # If a module supports triggering a renew from here, do that, otherwise do the # legacy dance. - if self._on_legacy_renew_callback is not None: - return await self._on_legacy_renew_callback(renewal_token) + if self._module_api_callbacks.on_legacy_renew_callback is not None: + return await self._module_api_callbacks.on_legacy_renew_callback( + renewal_token + ) try: ( diff --git a/synapse/module_api/__init__.py b/synapse/module_api/__init__.py index 424239e3df..595c23e78d 100644 --- a/synapse/module_api/__init__.py +++ b/synapse/module_api/__init__.py @@ -73,13 +73,6 @@ from synapse.events.third_party_rules import ( ON_USER_DEACTIVATION_STATUS_CHANGED_CALLBACK, ) from synapse.handlers.account_data import ON_ACCOUNT_DATA_UPDATED_CALLBACK -from synapse.handlers.account_validity import ( - IS_USER_EXPIRED_CALLBACK, - ON_LEGACY_ADMIN_REQUEST, - ON_LEGACY_RENEW_CALLBACK, - ON_LEGACY_SEND_MAIL_CALLBACK, - ON_USER_REGISTRATION_CALLBACK, -) from synapse.handlers.auth import ( CHECK_3PID_AUTH_CALLBACK, CHECK_AUTH_CALLBACK, @@ -105,6 +98,13 @@ from synapse.logging.context import ( run_in_background, ) from synapse.metrics.background_process_metrics import run_as_background_process +from synapse.module_api.callbacks.account_validity_callbacks import ( + IS_USER_EXPIRED_CALLBACK, + ON_LEGACY_ADMIN_REQUEST, + ON_LEGACY_RENEW_CALLBACK, + ON_LEGACY_SEND_MAIL_CALLBACK, + ON_USER_REGISTRATION_CALLBACK, +) from synapse.rest.client.login import LoginResponse from synapse.storage import DataStore from synapse.storage.background_updates import ( @@ -250,6 +250,7 @@ class ModuleApi: self._push_rules_handler = hs.get_push_rules_handler() self._device_handler = hs.get_device_handler() self.custom_template_dir = hs.config.server.custom_template_directory + self._callbacks = hs.get_module_api_callbacks() try: app_name = self._hs.config.email.email_app_name @@ -271,7 +272,6 @@ class ModuleApi: self._account_data_manager = AccountDataManager(hs) self._spam_checker = hs.get_spam_checker() - self._account_validity_handler = hs.get_account_validity_handler() self._third_party_event_rules = hs.get_third_party_event_rules() self._password_auth_provider = hs.get_password_auth_provider() self._presence_router = hs.get_presence_router() @@ -332,7 +332,7 @@ class ModuleApi: Added in Synapse v1.39.0. """ - return self._account_validity_handler.register_account_validity_callbacks( + return self._callbacks.account_validity.register_callbacks( is_user_expired=is_user_expired, on_user_registration=on_user_registration, on_legacy_send_mail=on_legacy_send_mail, diff --git a/synapse/module_api/callbacks/__init__.py b/synapse/module_api/callbacks/__init__.py new file mode 100644 index 0000000000..884c6413cc --- /dev/null +++ b/synapse/module_api/callbacks/__init__.py @@ -0,0 +1,24 @@ +# Copyright 2023 The Matrix.org Foundation C.I.C. +# +# 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. + +from .account_validity_callbacks import AccountValidityModuleApiCallbacks + +__all__ = [ + "ModuleApiCallbacks", +] + + +class ModuleApiCallbacks: + def __init__(self) -> None: + self.account_validity = AccountValidityModuleApiCallbacks() diff --git a/synapse/module_api/callbacks/account_validity_callbacks.py b/synapse/module_api/callbacks/account_validity_callbacks.py new file mode 100644 index 0000000000..661e1146f2 --- /dev/null +++ b/synapse/module_api/callbacks/account_validity_callbacks.py @@ -0,0 +1,93 @@ +# Copyright 2023 The Matrix.org Foundation C.I.C. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging +from typing import Awaitable, Callable, List, Optional, Tuple + +from twisted.web.http import Request + +logger = logging.getLogger(__name__) + +# Types for callbacks to be registered via the module api +IS_USER_EXPIRED_CALLBACK = Callable[[str], Awaitable[Optional[bool]]] +ON_USER_REGISTRATION_CALLBACK = Callable[[str], Awaitable] +# Temporary hooks to allow for a transition from `/_matrix/client` endpoints +# to `/_synapse/client/account_validity`. See `register_account_validity_callbacks`. +ON_LEGACY_SEND_MAIL_CALLBACK = Callable[[str], Awaitable] +ON_LEGACY_RENEW_CALLBACK = Callable[[str], Awaitable[Tuple[bool, bool, int]]] +ON_LEGACY_ADMIN_REQUEST = Callable[[Request], Awaitable] + + +class AccountValidityModuleApiCallbacks: + def __init__(self) -> None: + self.is_user_expired_callbacks: List[IS_USER_EXPIRED_CALLBACK] = [] + self.on_user_registration_callbacks: List[ON_USER_REGISTRATION_CALLBACK] = [] + self.on_legacy_send_mail_callback: Optional[ON_LEGACY_SEND_MAIL_CALLBACK] = None + self.on_legacy_renew_callback: Optional[ON_LEGACY_RENEW_CALLBACK] = None + + # The legacy admin requests callback isn't a protected attribute because we need + # to access it from the admin servlet, which is outside of this handler. + self.on_legacy_admin_request_callback: Optional[ON_LEGACY_ADMIN_REQUEST] = None + + def register_callbacks( + self, + is_user_expired: Optional[IS_USER_EXPIRED_CALLBACK] = None, + on_user_registration: Optional[ON_USER_REGISTRATION_CALLBACK] = None, + on_legacy_send_mail: Optional[ON_LEGACY_SEND_MAIL_CALLBACK] = None, + on_legacy_renew: Optional[ON_LEGACY_RENEW_CALLBACK] = None, + on_legacy_admin_request: Optional[ON_LEGACY_ADMIN_REQUEST] = None, + ) -> None: + """Register callbacks from module for each hook.""" + if is_user_expired is not None: + self.is_user_expired_callbacks.append(is_user_expired) + + if on_user_registration is not None: + self.on_user_registration_callbacks.append(on_user_registration) + + # The builtin account validity feature exposes 3 endpoints (send_mail, renew, and + # an admin one). As part of moving the feature into a module, we need to change + # the path from /_matrix/client/unstable/account_validity/... to + # /_synapse/client/account_validity, because: + # + # * the feature isn't part of the Matrix spec thus shouldn't live under /_matrix + # * the way we register servlets means that modules can't register resources + # under /_matrix/client + # + # We need to allow for a transition period between the old and new endpoints + # in order to allow for clients to update (and for emails to be processed). + # + # Once the email-account-validity module is loaded, it will take control of account + # validity by moving the rows from our `account_validity` table into its own table. + # + # Therefore, we need to allow modules (in practice just the one implementing the + # email-based account validity) to temporarily hook into the legacy endpoints so we + # can route the traffic coming into the old endpoints into the module, which is + # why we have the following three temporary hooks. + if on_legacy_send_mail is not None: + if self.on_legacy_send_mail_callback is not None: + raise RuntimeError("Tried to register on_legacy_send_mail twice") + + self.on_legacy_send_mail_callback = on_legacy_send_mail + + if on_legacy_renew is not None: + if self.on_legacy_renew_callback is not None: + raise RuntimeError("Tried to register on_legacy_renew twice") + + self.on_legacy_renew_callback = on_legacy_renew + + if on_legacy_admin_request is not None: + if self.on_legacy_admin_request_callback is not None: + raise RuntimeError("Tried to register on_legacy_admin_request twice") + + self.on_legacy_admin_request_callback = on_legacy_admin_request diff --git a/synapse/rest/admin/users.py b/synapse/rest/admin/users.py index 357e9a574d..281e8fd0ad 100644 --- a/synapse/rest/admin/users.py +++ b/synapse/rest/admin/users.py @@ -683,19 +683,18 @@ class AccountValidityRenewServlet(RestServlet): PATTERNS = admin_patterns("/account_validity/validity$") def __init__(self, hs: "HomeServer"): - self.account_activity_handler = hs.get_account_validity_handler() + self.account_validity_handler = hs.get_account_validity_handler() + self.account_validity_module_callbacks = ( + hs.get_module_api_callbacks().account_validity + ) self.auth = hs.get_auth() async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) - if self.account_activity_handler.on_legacy_admin_request_callback: - expiration_ts = ( - await ( - self.account_activity_handler.on_legacy_admin_request_callback( - request - ) - ) + if self.account_validity_module_callbacks.on_legacy_admin_request_callback: + expiration_ts = await self.account_validity_module_callbacks.on_legacy_admin_request_callback( + request ) else: body = parse_json_object_from_request(request) @@ -706,7 +705,7 @@ class AccountValidityRenewServlet(RestServlet): "Missing property 'user_id' in the request body", ) - expiration_ts = await self.account_activity_handler.renew_account_for_user( + expiration_ts = await self.account_validity_handler.renew_account_for_user( body["user_id"], body.get("expiration_ts"), not body.get("enable_renewal_emails", True), diff --git a/synapse/server.py b/synapse/server.py index df80fc1beb..9bd374ceae 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -108,6 +108,7 @@ from synapse.http.matrixfederationclient import MatrixFederationHttpClient from synapse.media.media_repository import MediaRepository from synapse.metrics.common_usage_metrics import CommonUsageMetricsManager from synapse.module_api import ModuleApi +from synapse.module_api.callbacks import ModuleApiCallbacks from synapse.notifier import Notifier, ReplicationNotifier from synapse.push.bulk_push_rule_evaluator import BulkPushRuleEvaluator from synapse.push.pusherpool import PusherPool @@ -777,6 +778,10 @@ class HomeServer(metaclass=abc.ABCMeta): def get_module_api(self) -> ModuleApi: return ModuleApi(self, self.get_auth_handler()) + @cache_in_self + def get_module_api_callbacks(self) -> ModuleApiCallbacks: + return ModuleApiCallbacks() + @cache_in_self def get_account_data_handler(self) -> AccountDataHandler: return AccountDataHandler(self) -- cgit 1.4.1