From e739b205885a7132f3dde67545d56655d83096d7 Mon Sep 17 00:00:00 2001 From: Patrick Cloke Date: Fri, 24 Jul 2020 10:53:25 -0400 Subject: [PATCH] Fix up types and comments that refer to Deferreds. (#7945) --- changelog.d/7945.misc | 1 + synapse/handlers/admin.py | 2 +- synapse/handlers/e2e_keys.py | 24 +-- synapse/handlers/federation.py | 8 +- synapse/handlers/identity.py | 271 ++++++++++++++++++--------------- synapse/handlers/room.py | 13 +- synapse/handlers/search.py | 7 +- synapse/handlers/sync.py | 4 - tox.ini | 1 + 9 files changed, 174 insertions(+), 157 deletions(-) create mode 100644 changelog.d/7945.misc diff --git a/changelog.d/7945.misc b/changelog.d/7945.misc new file mode 100644 index 000000000..da612fd57 --- /dev/null +++ b/changelog.d/7945.misc @@ -0,0 +1 @@ +Update comments that refer to Deferreds for async functions. diff --git a/synapse/handlers/admin.py b/synapse/handlers/admin.py index f3c0aeceb..506bb2b27 100644 --- a/synapse/handlers/admin.py +++ b/synapse/handlers/admin.py @@ -72,7 +72,7 @@ class AdminHandler(BaseHandler): writer (ExfiltrationWriter) Returns: - defer.Deferred: Resolves when all data for a user has been written. + Resolves when all data for a user has been written. The returned value is that returned by `writer.finished()`. """ # Get all rooms the user is in or has been in diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py index 361dd64cd..84169c102 100644 --- a/synapse/handlers/e2e_keys.py +++ b/synapse/handlers/e2e_keys.py @@ -16,10 +16,11 @@ # limitations under the License. import logging +from typing import Dict, List, Optional, Tuple import attr from canonicaljson import encode_canonical_json, json -from signedjson.key import decode_verify_key_bytes +from signedjson.key import VerifyKey, decode_verify_key_bytes from signedjson.sign import SignatureVerifyException, verify_signed_json from unpaddedbase64 import decode_base64 @@ -265,7 +266,9 @@ class E2eKeysHandler(object): return ret - async def get_cross_signing_keys_from_cache(self, query, from_user_id): + async def get_cross_signing_keys_from_cache( + self, query, from_user_id + ) -> Dict[str, Dict[str, dict]]: """Get cross-signing keys for users from the database Args: @@ -277,8 +280,7 @@ class E2eKeysHandler(object): can see. Returns: - defer.Deferred[dict[str, dict[str, dict]]]: map from - (master_keys|self_signing_keys|user_signing_keys) -> user_id -> key + A map from (master_keys|self_signing_keys|user_signing_keys) -> user_id -> key """ master_keys = {} self_signing_keys = {} @@ -312,16 +314,17 @@ class E2eKeysHandler(object): } @trace - async def query_local_devices(self, query): + async def query_local_devices( + self, query: Dict[str, Optional[List[str]]] + ) -> Dict[str, Dict[str, dict]]: """Get E2E device keys for local users Args: - query (dict[string, list[string]|None): map from user_id to a list + query: map from user_id to a list of devices to query (None for all devices) Returns: - defer.Deferred: (resolves to dict[string, dict[string, dict]]): - map from user_id -> device_id -> device details + A map from user_id -> device_id -> device details """ set_tag("local_query", query) local_query = [] @@ -1004,7 +1007,7 @@ class E2eKeysHandler(object): async def _retrieve_cross_signing_keys_for_remote_user( self, user: UserID, desired_key_type: str, - ): + ) -> Tuple[Optional[dict], Optional[str], Optional[VerifyKey]]: """Queries cross-signing keys for a remote user and saves them to the database Only the key specified by `key_type` will be returned, while all retrieved keys @@ -1015,8 +1018,7 @@ class E2eKeysHandler(object): desired_key_type: The type of key to receive. One of "master", "self_signing" Returns: - Deferred[Tuple[Optional[Dict], Optional[str], Optional[VerifyKey]]]: A tuple - of the retrieved key content, the key's ID and the matching VerifyKey. + A tuple of the retrieved key content, the key's ID and the matching VerifyKey. If the key cannot be retrieved, all values in the tuple will instead be None. """ try: diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 71ac5dca9..758ffdf01 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -1394,7 +1394,7 @@ class FederationHandler(BaseHandler): # it's just a best-effort thing at this point. We do want to do # them roughly in order, though, otherwise we'll end up making # lots of requests for missing prev_events which we do actually - # have. Hence we fire off the deferred, but don't wait for it. + # have. Hence we fire off the background task, but don't wait for it. run_in_background(self._handle_queued_pdus, room_queue) @@ -2994,7 +2994,9 @@ class FederationHandler(BaseHandler): else: user_joined_room(self.distributor, user, room_id) - async def get_room_complexity(self, remote_room_hosts, room_id): + async def get_room_complexity( + self, remote_room_hosts: List[str], room_id: str + ) -> Optional[dict]: """ Fetch the complexity of a remote room over federation. @@ -3003,7 +3005,7 @@ class FederationHandler(BaseHandler): room_id (str): The room ID to ask about. Returns: - Deferred[dict] or Deferred[None]: Dict contains the complexity + Dict contains the complexity metric versions, while None means we could not fetch the complexity. """ diff --git a/synapse/handlers/identity.py b/synapse/handlers/identity.py index 701233ebb..0bd2c3e37 100644 --- a/synapse/handlers/identity.py +++ b/synapse/handlers/identity.py @@ -19,6 +19,7 @@ import logging import urllib.parse +from typing import Awaitable, Callable, Dict, List, Optional, Tuple from canonicaljson import json from signedjson.key import decode_verify_key_bytes @@ -36,6 +37,7 @@ from synapse.api.errors import ( ) from synapse.config.emailconfig import ThreepidBehaviour from synapse.http.client import SimpleHttpClient +from synapse.types import JsonDict, Requester from synapse.util.hash import sha256_and_url_safe_base64 from synapse.util.stringutils import assert_valid_client_secret, random_string @@ -59,23 +61,23 @@ class IdentityHandler(BaseHandler): self.federation_http_client = hs.get_http_client() self.hs = hs - async def threepid_from_creds(self, id_server, creds): + async def threepid_from_creds( + self, id_server: str, creds: Dict[str, str] + ) -> Optional[JsonDict]: """ Retrieve and validate a threepid identifier from a "credentials" dictionary against a given identity server Args: - id_server (str): The identity server to validate 3PIDs against. Must be a + id_server: The identity server to validate 3PIDs against. Must be a complete URL including the protocol (http(s)://) - - creds (dict[str, str]): Dictionary containing the following keys: + creds: Dictionary containing the following keys: * client_secret|clientSecret: A unique secret str provided by the client * sid: The ID of the validation session Returns: - Deferred[dict[str,str|int]|None]: A dictionary consisting of response params to - the /getValidated3pid endpoint of the Identity Service API, or None if the - threepid was not found + A dictionary consisting of response params to the /getValidated3pid + endpoint of the Identity Service API, or None if the threepid was not found """ client_secret = creds.get("client_secret") or creds.get("clientSecret") if not client_secret: @@ -119,26 +121,27 @@ class IdentityHandler(BaseHandler): return None async def bind_threepid( - self, client_secret, sid, mxid, id_server, id_access_token=None, use_v2=True - ): + self, + client_secret: str, + sid: str, + mxid: str, + id_server: str, + id_access_token: Optional[str] = None, + use_v2: bool = True, + ) -> JsonDict: """Bind a 3PID to an identity server Args: - client_secret (str): A unique secret provided by the client - - sid (str): The ID of the validation session - - mxid (str): The MXID to bind the 3PID to - - id_server (str): The domain of the identity server to query - - id_access_token (str): The access token to authenticate to the identity + client_secret: A unique secret provided by the client + sid: The ID of the validation session + mxid: The MXID to bind the 3PID to + id_server: The domain of the identity server to query + id_access_token: The access token to authenticate to the identity server with, if necessary. Required if use_v2 is true - - use_v2 (bool): Whether to use v2 Identity Service API endpoints. Defaults to True + use_v2: Whether to use v2 Identity Service API endpoints. Defaults to True Returns: - Deferred[dict]: The response from the identity server + The response from the identity server """ logger.debug("Proxying threepid bind request for %s to %s", mxid, id_server) @@ -151,7 +154,7 @@ class IdentityHandler(BaseHandler): bind_data = {"sid": sid, "client_secret": client_secret, "mxid": mxid} if use_v2: bind_url = "https://%s/_matrix/identity/v2/3pid/bind" % (id_server,) - headers["Authorization"] = create_id_access_token_header(id_access_token) + headers["Authorization"] = create_id_access_token_header(id_access_token) # type: ignore else: bind_url = "https://%s/_matrix/identity/api/v1/3pid/bind" % (id_server,) @@ -187,20 +190,20 @@ class IdentityHandler(BaseHandler): ) return res - async def try_unbind_threepid(self, mxid, threepid): + async def try_unbind_threepid(self, mxid: str, threepid: dict) -> bool: """Attempt to remove a 3PID from an identity server, or if one is not provided, all identity servers we're aware the binding is present on Args: - mxid (str): Matrix user ID of binding to be removed - threepid (dict): Dict with medium & address of binding to be + mxid: Matrix user ID of binding to be removed + threepid: Dict with medium & address of binding to be removed, and an optional id_server. Raises: SynapseError: If we failed to contact the identity server Returns: - Deferred[bool]: True on success, otherwise False if the identity + True on success, otherwise False if the identity server doesn't support unbinding (or no identity server found to contact). """ @@ -223,19 +226,21 @@ class IdentityHandler(BaseHandler): return changed - async def try_unbind_threepid_with_id_server(self, mxid, threepid, id_server): + async def try_unbind_threepid_with_id_server( + self, mxid: str, threepid: dict, id_server: str + ) -> bool: """Removes a binding from an identity server Args: - mxid (str): Matrix user ID of binding to be removed - threepid (dict): Dict with medium & address of binding to be removed - id_server (str): Identity server to unbind from + mxid: Matrix user ID of binding to be removed + threepid: Dict with medium & address of binding to be removed + id_server: Identity server to unbind from Raises: SynapseError: If we failed to contact the identity server Returns: - Deferred[bool]: True on success, otherwise False if the identity + True on success, otherwise False if the identity server doesn't support unbinding """ url = "https://%s/_matrix/identity/api/v1/3pid/unbind" % (id_server,) @@ -287,23 +292,23 @@ class IdentityHandler(BaseHandler): async def send_threepid_validation( self, - email_address, - client_secret, - send_attempt, - send_email_func, - next_link=None, - ): + email_address: str, + client_secret: str, + send_attempt: int, + send_email_func: Callable[[str, str, str, str], Awaitable], + next_link: Optional[str] = None, + ) -> str: """Send a threepid validation email for password reset or registration purposes Args: - email_address (str): The user's email address - client_secret (str): The provided client secret - send_attempt (int): Which send attempt this is - send_email_func (func): A function that takes an email address, token, - client_secret and session_id, sends an email - and returns a Deferred. - next_link (str|None): The URL to redirect the user to after validation + email_address: The user's email address + client_secret: The provided client secret + send_attempt: Which send attempt this is + send_email_func: A function that takes an email address, token, + client_secret and session_id, sends an email + and returns an Awaitable. + next_link: The URL to redirect the user to after validation Returns: The new session_id upon success @@ -372,17 +377,22 @@ class IdentityHandler(BaseHandler): return session_id async def requestEmailToken( - self, id_server, email, client_secret, send_attempt, next_link=None - ): + self, + id_server: str, + email: str, + client_secret: str, + send_attempt: int, + next_link: Optional[str] = None, + ) -> JsonDict: """ Request an external server send an email on our behalf for the purposes of threepid validation. Args: - id_server (str): The identity server to proxy to - email (str): The email to send the message to - client_secret (str): The unique client_secret sends by the user - send_attempt (int): Which attempt this is + id_server: The identity server to proxy to + email: The email to send the message to + client_secret: The unique client_secret sends by the user + send_attempt: Which attempt this is next_link: A link to redirect the user to once they submit the token Returns: @@ -419,22 +429,22 @@ class IdentityHandler(BaseHandler): async def requestMsisdnToken( self, - id_server, - country, - phone_number, - client_secret, - send_attempt, - next_link=None, - ): + id_server: str, + country: str, + phone_number: str, + client_secret: str, + send_attempt: int, + next_link: Optional[str] = None, + ) -> JsonDict: """ Request an external server send an SMS message on our behalf for the purposes of threepid validation. Args: - id_server (str): The identity server to proxy to - country (str): The country code of the phone number - phone_number (str): The number to send the message to - client_secret (str): The unique client_secret sends by the user - send_attempt (int): Which attempt this is + id_server: The identity server to proxy to + country: The country code of the phone number + phone_number: The number to send the message to + client_secret: The unique client_secret sends by the user + send_attempt: Which attempt this is next_link: A link to redirect the user to once they submit the token Returns: @@ -480,17 +490,18 @@ class IdentityHandler(BaseHandler): ) return data - async def validate_threepid_session(self, client_secret, sid): + async def validate_threepid_session( + self, client_secret: str, sid: str + ) -> Optional[JsonDict]: """Validates a threepid session with only the client secret and session ID Tries validating against any configured account_threepid_delegates as well as locally. Args: - client_secret (str): A secret provided by the client - - sid (str): The ID of the session + client_secret: A secret provided by the client + sid: The ID of the session Returns: - Dict[str, str|int] if validation was successful, otherwise None + The json response if validation was successful, otherwise None """ # XXX: We shouldn't need to keep wrapping and unwrapping this value threepid_creds = {"client_secret": client_secret, "sid": sid} @@ -523,23 +534,22 @@ class IdentityHandler(BaseHandler): return validation_session - async def proxy_msisdn_submit_token(self, id_server, client_secret, sid, token): + async def proxy_msisdn_submit_token( + self, id_server: str, client_secret: str, sid: str, token: str + ) -> JsonDict: """Proxy a POST submitToken request to an identity server for verification purposes Args: - id_server (str): The identity server URL to contact - - client_secret (str): Secret provided by the client - - sid (str): The ID of the session - - token (str): The verification token + id_server: The identity server URL to contact + client_secret: Secret provided by the client + sid: The ID of the session + token: The verification token Raises: SynapseError: If we failed to contact the identity server Returns: - Deferred[dict]: The response dict from the identity server + The response dict from the identity server """ body = {"client_secret": client_secret, "sid": sid, "token": token} @@ -554,19 +564,25 @@ class IdentityHandler(BaseHandler): logger.warning("Error contacting msisdn account_threepid_delegate: %s", e) raise SynapseError(400, "Error contacting the identity server") - async def lookup_3pid(self, id_server, medium, address, id_access_token=None): + async def lookup_3pid( + self, + id_server: str, + medium: str, + address: str, + id_access_token: Optional[str] = None, + ) -> Optional[str]: """Looks up a 3pid in the passed identity server. Args: - id_server (str): The server name (including port, if required) + id_server: The server name (including port, if required) of the identity server to use. - medium (str): The type of the third party identifier (e.g. "email"). - address (str): The third party identifier (e.g. "foo@example.com"). - id_access_token (str|None): The access token to authenticate to the identity + medium: The type of the third party identifier (e.g. "email"). + address: The third party identifier (e.g. "foo@example.com"). + id_access_token: The access token to authenticate to the identity server with Returns: - str|None: the matrix ID of the 3pid, or None if it is not recognized. + the matrix ID of the 3pid, or None if it is not recognized. """ if id_access_token is not None: try: @@ -591,17 +607,19 @@ class IdentityHandler(BaseHandler): return await self._lookup_3pid_v1(id_server, medium, address) - async def _lookup_3pid_v1(self, id_server, medium, address): + async def _lookup_3pid_v1( + self, id_server: str, medium: str, address: str + ) -> Optional[str]: """Looks up a 3pid in the passed identity server using v1 lookup. Args: - id_server (str): The server name (including port, if required) + id_server: The server name (including port, if required) of the identity server to use. - medium (str): The type of the third party identifier (e.g. "email"). - address (str): The third party identifier (e.g. "foo@example.com"). + medium: The type of the third party identifier (e.g. "email"). + address: The third party identifier (e.g. "foo@example.com"). Returns: - str: the matrix ID of the 3pid, or None if it is not recognized. + the matrix ID of the 3pid, or None if it is not recognized. """ try: data = await self.blacklisting_http_client.get_json( @@ -621,18 +639,20 @@ class IdentityHandler(BaseHandler): return None - async def _lookup_3pid_v2(self, id_server, id_access_token, medium, address): + async def _lookup_3pid_v2( + self, id_server: str, id_access_token: str, medium: str, address: str + ) -> Optional[str]: """Looks up a 3pid in the passed identity server using v2 lookup. Args: - id_server (str): The server name (including port, if required) + id_server: The server name (including port, if required) of the identity server to use. - id_access_token (str): The access token to authenticate to the identity server with - medium (str): The type of the third party identifier (e.g. "email"). - address (str): The third party identifier (e.g. "foo@example.com"). + id_access_token: The access token to authenticate to the identity server with + medium: The type of the third party identifier (e.g. "email"). + address: The third party identifier (e.g. "foo@example.com"). Returns: - Deferred[str|None]: the matrix ID of the 3pid, or None if it is not recognised. + the matrix ID of the 3pid, or None if it is not recognised. """ # Check what hashing details are supported by this identity server try: @@ -757,49 +777,48 @@ class IdentityHandler(BaseHandler): async def ask_id_server_for_third_party_invite( self, - requester, - id_server, - medium, - address, - room_id, - inviter_user_id, - room_alias, - room_avatar_url, - room_join_rules, - room_name, - inviter_display_name, - inviter_avatar_url, - id_access_token=None, - ): + requester: Requester, + id_server: str, + medium: str, + address: str, + room_id: str, + inviter_user_id: str, + room_alias: str, + room_avatar_url: str, + room_join_rules: str, + room_name: str, + inviter_display_name: str, + inviter_avatar_url: str, + id_access_token: Optional[str] = None, + ) -> Tuple[str, List[Dict[str, str]], Dict[str, str], str]: """ Asks an identity server for a third party invite. Args: - requester (Requester) - id_server (str): hostname + optional port for the identity server. - medium (str): The literal string "email". - address (str): The third party address being invited. - room_id (str): The ID of the room to which the user is invited. - inviter_user_id (str): The user ID of the inviter. - room_alias (str): An alias for the room, for cosmetic notifications. - room_avatar_url (str): The URL of the room's avatar, for cosmetic + requester + id_server: hostname + optional port for the identity server. + medium: The literal string "email". + address: The third party address being invited. + room_id: The ID of the room to which the user is invited. + inviter_user_id: The user ID of the inviter. + room_alias: An alias for the room, for cosmetic notifications. + room_avatar_url: The URL of the room's avatar, for cosmetic notifications. - room_join_rules (str): The join rules of the email (e.g. "public"). - room_name (str): The m.room.name of the room. - inviter_display_name (str): The current display name of the + room_join_rules: The join rules of the email (e.g. "public"). + room_name: The m.room.name of the room. + inviter_display_name: The current display name of the inviter. - inviter_avatar_url (str): The URL of the inviter's avatar. + inviter_avatar_url: The URL of the inviter's avatar. id_access_token (str|None): The access token to authenticate to the identity server with Returns: - A deferred tuple containing: - token (str): The token which must be signed to prove authenticity. + A tuple containing: + token: The token which must be signed to prove authenticity. public_keys ([{"public_key": str, "key_validity_url": str}]): public_key is a base64-encoded ed25519 public key. fallback_public_key: One element from public_keys. - display_name (str): A user-friendly name to represent the invited - user. + display_name: A user-friendly name to represent the invited user. """ invite_config = { "medium": medium, @@ -896,15 +915,15 @@ class IdentityHandler(BaseHandler): return token, public_keys, fallback_public_key, display_name -def create_id_access_token_header(id_access_token): +def create_id_access_token_header(id_access_token: str) -> List[str]: """Create an Authorization header for passing to SimpleHttpClient as the header value of an HTTP request. Args: - id_access_token (str): An identity server access token. + id_access_token: An identity server access token. Returns: - list[str]: The ascii-encoded bearer token encased in a list. + The ascii-encoded bearer token encased in a list. """ # Prefix with Bearer bearer_token = "Bearer %s" % id_access_token diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index fb37d371a..0c5b99234 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -119,7 +119,7 @@ class RoomCreationHandler(BaseHandler): async def upgrade_room( self, requester: Requester, old_room_id: str, new_version: RoomVersion - ): + ) -> str: """Replace a room with a new room with a different version Args: @@ -128,7 +128,7 @@ class RoomCreationHandler(BaseHandler): new_version: the new room version to use Returns: - Deferred[unicode]: the new room id + the new room id """ await self.ratelimit(requester) @@ -239,7 +239,7 @@ class RoomCreationHandler(BaseHandler): old_room_id: str, new_room_id: str, old_room_state: StateMap[str], - ): + ) -> None: """Send updated power levels in both rooms after an upgrade Args: @@ -247,9 +247,6 @@ class RoomCreationHandler(BaseHandler): old_room_id: the id of the room to be replaced new_room_id: the id of the replacement room old_room_state: the state map for the old room - - Returns: - Deferred """ old_room_pl_event_id = old_room_state.get((EventTypes.PowerLevels, "")) @@ -322,7 +319,7 @@ class RoomCreationHandler(BaseHandler): new_room_id: str, new_room_version: RoomVersion, tombstone_event_id: str, - ): + ) -> None: """Populate a new room based on an old room Args: @@ -332,8 +329,6 @@ class RoomCreationHandler(BaseHandler): created with _gemerate_room_id()) new_room_version: the new room version to use tombstone_event_id: the ID of the tombstone event in the old room. - Returns: - Deferred """ user_id = requester.user.to_string() diff --git a/synapse/handlers/search.py b/synapse/handlers/search.py index 4d40d3ac9..9b312a155 100644 --- a/synapse/handlers/search.py +++ b/synapse/handlers/search.py @@ -15,6 +15,7 @@ import itertools import logging +from typing import Iterable from unpaddedbase64 import decode_base64, encode_base64 @@ -37,7 +38,7 @@ class SearchHandler(BaseHandler): self.state_store = self.storage.state self.auth = hs.get_auth() - async def get_old_rooms_from_upgraded_room(self, room_id): + async def get_old_rooms_from_upgraded_room(self, room_id: str) -> Iterable[str]: """Retrieves room IDs of old rooms in the history of an upgraded room. We do so by checking the m.room.create event of the room for a @@ -48,10 +49,10 @@ class SearchHandler(BaseHandler): The full list of all found rooms in then returned. Args: - room_id (str): id of the room to search through. + room_id: id of the room to search through. Returns: - Deferred[iterable[str]]: predecessor room ids + Predecessor room ids """ historical_room_ids = [] diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 365d7323e..ebd3e9810 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -421,10 +421,6 @@ class SyncHandler(object): potential_recents: Optional[List[EventBase]] = None, newly_joined_room: bool = False, ) -> TimelineBatch: - """ - Returns: - a Deferred TimelineBatch - """ with Measure(self.clock, "load_filtered_recents"): timeline_limit = sync_config.filter_collection.timeline_limit() block_all_timeline = ( diff --git a/tox.ini b/tox.ini index 834d68aea..595ab3ba6 100644 --- a/tox.ini +++ b/tox.ini @@ -185,6 +185,7 @@ commands = mypy \ synapse/handlers/cas_handler.py \ synapse/handlers/directory.py \ synapse/handlers/federation.py \ + synapse/handlers/identity.py \ synapse/handlers/oidc_handler.py \ synapse/handlers/presence.py \ synapse/handlers/room_member.py \