diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/deactivate_account.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/identity.py | 231 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 39 |
3 files changed, 192 insertions, 82 deletions
diff --git a/synapse/handlers/deactivate_account.py b/synapse/handlers/deactivate_account.py index 5f804d1f13..d83912c9a4 100644 --- a/synapse/handlers/deactivate_account.py +++ b/synapse/handlers/deactivate_account.py @@ -73,7 +73,9 @@ class DeactivateAccountHandler(BaseHandler): # unbinding identity_server_supports_unbinding = True - threepids = yield self.store.user_get_threepids(user_id) + # Retrieve the 3PIDs this user has bound to an identity server + threepids = yield self.store.user_get_bound_threepids(user_id) + for threepid in threepids: try: result = yield self._identity_handler.try_unbind_threepid( diff --git a/synapse/handlers/identity.py b/synapse/handlers/identity.py index 512f38e5a6..1f16afd14e 100644 --- a/synapse/handlers/identity.py +++ b/synapse/handlers/identity.py @@ -22,6 +22,7 @@ import logging from canonicaljson import json from twisted.internet import defer +from twisted.internet.error import TimeoutError from synapse.api.errors import ( CodeMessageException, @@ -29,6 +30,8 @@ from synapse.api.errors import ( HttpResponseException, SynapseError, ) +from synapse.config.emailconfig import ThreepidBehaviour +from synapse.http.client import SimpleHttpClient from synapse.util.stringutils import random_string from ._base import BaseHandler @@ -40,40 +43,15 @@ class IdentityHandler(BaseHandler): def __init__(self, hs): super(IdentityHandler, self).__init__(hs) - self.http_client = hs.get_simple_http_client() + self.http_client = SimpleHttpClient(hs) + # We create a blacklisting instance of SimpleHttpClient for contacting identity + # servers specified by clients + self.blacklisting_http_client = SimpleHttpClient( + hs, ip_blacklist=hs.config.federation_ip_range_blacklist + ) self.federation_http_client = hs.get_http_client() self.hs = hs - def _extract_items_from_creds_dict(self, creds): - """ - Retrieve entries from a "credentials" dictionary - - Args: - creds (dict[str, str]): Dictionary of credentials that contain the following keys: - * client_secret|clientSecret: A unique secret str provided by the client - * id_server|idServer: the domain of the identity server to query - * id_access_token: The access token to authenticate to the identity - server with. - - Returns: - tuple(str, str, str|None): A tuple containing the client_secret, the id_server, - and the id_access_token value if available. - """ - client_secret = creds.get("client_secret") or creds.get("clientSecret") - if not client_secret: - raise SynapseError( - 400, "No client_secret in creds", errcode=Codes.MISSING_PARAM - ) - - id_server = creds.get("id_server") or creds.get("idServer") - if not id_server: - raise SynapseError( - 400, "No id_server in creds", errcode=Codes.MISSING_PARAM - ) - - id_access_token = creds.get("id_access_token") - return client_secret, id_server, id_access_token - @defer.inlineCallbacks def threepid_from_creds(self, id_server, creds): """ @@ -81,11 +59,10 @@ class IdentityHandler(BaseHandler): given identity server Args: - id_server (str|None): The identity server to validate 3PIDs against. If None, - we will attempt to extract id_server creds + id_server (str): 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: - * id_server|idServer: An optional domain name of an identity server * client_secret|clientSecret: A unique secret str provided by the client * sid: The ID of the validation session @@ -104,51 +81,59 @@ class IdentityHandler(BaseHandler): raise SynapseError( 400, "Missing param session_id in creds", errcode=Codes.MISSING_PARAM ) - if not id_server: - # Attempt to get the id_server from the creds dict - id_server = creds.get("id_server") or creds.get("idServer") - if not id_server: - raise SynapseError( - 400, "Missing param id_server in creds", errcode=Codes.MISSING_PARAM - ) query_params = {"sid": session_id, "client_secret": client_secret} - url = "https://%s%s" % ( - id_server, - "/_matrix/identity/api/v1/3pid/getValidated3pid", - ) + url = id_server + "/_matrix/identity/api/v1/3pid/getValidated3pid" - data = yield self.http_client.get_json(url, query_params) - return data if "medium" in data else None + try: + data = yield self.http_client.get_json(url, query_params) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") + except HttpResponseException as e: + logger.info( + "%s returned %i for threepid validation for: %s", + id_server, + e.code, + creds, + ) + return None + + # Old versions of Sydent return a 200 http code even on a failed validation + # check. Thus, in addition to the HttpResponseException check above (which + # checks for non-200 errors), we need to make sure validation_session isn't + # actually an error, identified by the absence of a "medium" key + # See https://github.com/matrix-org/sydent/issues/215 for details + if "medium" in data: + return data + + logger.info("%s reported non-validated threepid: %s", id_server, creds) + return None @defer.inlineCallbacks - def bind_threepid(self, creds, mxid, use_v2=True): + def bind_threepid( + self, client_secret, sid, mxid, id_server, id_access_token=None, use_v2=True + ): """Bind a 3PID to an identity server Args: - creds (dict[str, str]): Dictionary of credentials that contain the following keys: - * client_secret|clientSecret: A unique secret str provided by the client - * id_server|idServer: the domain of the identity server to query - * id_access_token: The access token to authenticate to the identity - server with. Required if use_v2 is true + 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 - use_v2 (bool): Whether to use v2 Identity Service API endpoints + + id_server (str): The domain of the identity server to query + + id_access_token (str): 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 Returns: Deferred[dict]: The response from the identity server """ - logger.debug("binding threepid %r to %s", creds, mxid) - - client_secret, id_server, id_access_token = self._extract_items_from_creds_dict( - creds - ) - - sid = creds.get("sid") - if not sid: - raise SynapseError( - 400, "No sid in three_pid_creds", errcode=Codes.MISSING_PARAM - ) + logger.debug("Proxying threepid bind request for %s to %s", mxid, id_server) # If an id_access_token is not supplied, force usage of v1 if id_access_token is None: @@ -164,10 +149,11 @@ class IdentityHandler(BaseHandler): bind_url = "https://%s/_matrix/identity/api/v1/3pid/bind" % (id_server,) try: - data = yield self.http_client.post_json_get_json( + # Use the blacklisting http client as this call is only to identity servers + # provided by a client + data = yield self.blacklisting_http_client.post_json_get_json( bind_url, bind_data, headers=headers ) - logger.debug("bound threepid %r to %s", creds, mxid) # Remember where we bound the threepid yield self.store.add_user_bound_threepid( @@ -182,12 +168,17 @@ class IdentityHandler(BaseHandler): if e.code != 404 or not use_v2: logger.error("3PID bind failed with Matrix error: %r", e) raise e.to_synapse_error() + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") except CodeMessageException as e: data = json.loads(e.msg) # XXX WAT? return data logger.info("Got 404 when POSTing JSON %s, falling back to v1 URL", bind_url) - return (yield self.bind_threepid(creds, mxid, use_v2=False)) + res = yield self.bind_threepid( + client_secret, sid, mxid, id_server, id_access_token, use_v2=False + ) + return res @defer.inlineCallbacks def try_unbind_threepid(self, mxid, threepid): @@ -263,7 +254,11 @@ class IdentityHandler(BaseHandler): headers = {b"Authorization": auth_headers} try: - yield self.http_client.post_json_get_json(url, content, headers) + # Use the blacklisting http client as this call is only to identity servers + # provided by a client + yield self.blacklisting_http_client.post_json_get_json( + url, content, headers + ) changed = True except HttpResponseException as e: changed = False @@ -272,7 +267,9 @@ class IdentityHandler(BaseHandler): logger.warn("Received %d response while unbinding threepid", e.code) else: logger.error("Failed to unbind threepid on identity server: %s", e) - raise SynapseError(502, "Failed to contact identity server") + raise SynapseError(500, "Failed to contact identity server") + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") yield self.store.remove_user_bound_threepid( user_id=mxid, @@ -405,6 +402,8 @@ class IdentityHandler(BaseHandler): except HttpResponseException as e: logger.info("Proxied requestToken failed: %r", e) raise e.to_synapse_error() + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") @defer.inlineCallbacks def requestMsisdnToken( @@ -453,10 +452,100 @@ class IdentityHandler(BaseHandler): id_server + "/_matrix/identity/api/v1/validate/msisdn/requestToken", params, ) - return data except HttpResponseException as e: logger.info("Proxied requestToken failed: %r", e) raise e.to_synapse_error() + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") + + assert self.hs.config.public_baseurl + + # we need to tell the client to send the token back to us, since it doesn't + # otherwise know where to send it, so add submit_url response parameter + # (see also MSC2078) + data["submit_url"] = ( + self.hs.config.public_baseurl + + "_matrix/client/unstable/add_threepid/msisdn/submit_token" + ) + return data + + @defer.inlineCallbacks + def validate_threepid_session(self, client_secret, sid): + """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 + + Returns: + Dict[str, str|int] 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} + + # We don't actually know which medium this 3PID is. Thus we first assume it's email, + # and if validation fails we try msisdn + validation_session = None + + # Try to validate as email + if self.hs.config.threepid_behaviour_email == ThreepidBehaviour.REMOTE: + # Ask our delegated email identity server + validation_session = yield self.threepid_from_creds( + self.hs.config.account_threepid_delegate_email, threepid_creds + ) + elif self.hs.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL: + # Get a validated session matching these details + validation_session = yield self.store.get_threepid_validation_session( + "email", client_secret, sid=sid, validated=True + ) + + if validation_session: + return validation_session + + # Try to validate as msisdn + if self.hs.config.account_threepid_delegate_msisdn: + # Ask our delegated msisdn identity server + validation_session = yield self.threepid_from_creds( + self.hs.config.account_threepid_delegate_msisdn, threepid_creds + ) + + return validation_session + + @defer.inlineCallbacks + def proxy_msisdn_submit_token(self, id_server, client_secret, sid, token): + """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 + + Raises: + SynapseError: If we failed to contact the identity server + + Returns: + Deferred[dict]: The response dict from the identity server + """ + body = {"client_secret": client_secret, "sid": sid, "token": token} + + try: + return ( + yield self.http_client.post_json_get_json( + id_server + "/_matrix/identity/api/v1/validate/msisdn/submitToken", + body, + ) + ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") + except HttpResponseException as e: + logger.warning("Error contacting msisdn account_threepid_delegate: %s", e) + raise SynapseError(400, "Error contacting the identity server") def create_id_access_token_header(id_access_token): diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 35450feb6f..94cd0cf3ef 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -25,11 +25,13 @@ from signedjson.sign import verify_signed_json from unpaddedbase64 import decode_base64 from twisted.internet import defer +from twisted.internet.error import TimeoutError from synapse import types from synapse.api.constants import EventTypes, Membership from synapse.api.errors import AuthError, Codes, HttpResponseException, SynapseError from synapse.handlers.identity import LookupAlgorithm, create_id_access_token_header +from synapse.http.client import SimpleHttpClient from synapse.types import RoomID, UserID from synapse.util.async_helpers import Linearizer from synapse.util.distributor import user_joined_room, user_left_room @@ -61,7 +63,11 @@ class RoomMemberHandler(object): self.auth = hs.get_auth() self.state_handler = hs.get_state_handler() self.config = hs.config - self.simple_http_client = hs.get_simple_http_client() + # We create a blacklisting instance of SimpleHttpClient for contacting identity + # servers specified by clients + self.simple_http_client = SimpleHttpClient( + hs, ip_blacklist=hs.config.federation_ip_range_blacklist + ) self.federation_handler = hs.get_handlers().federation_handler self.directory_handler = hs.get_handlers().directory_handler @@ -756,7 +762,8 @@ class RoomMemberHandler(object): raise AuthError(401, "No signatures on 3pid binding") yield self._verify_any_signature(data, id_server) return data["mxid"] - + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") except IOError as e: logger.warning("Error from v1 identity server lookup: %s" % (e,)) @@ -777,10 +784,13 @@ class RoomMemberHandler(object): Deferred[str|None]: the matrix ID of the 3pid, or None if it is not recognised. """ # Check what hashing details are supported by this identity server - hash_details = yield self.simple_http_client.get_json( - "%s%s/_matrix/identity/v2/hash_details" % (id_server_scheme, id_server), - {"access_token": id_access_token}, - ) + try: + hash_details = yield self.simple_http_client.get_json( + "%s%s/_matrix/identity/v2/hash_details" % (id_server_scheme, id_server), + {"access_token": id_access_token}, + ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") if not isinstance(hash_details, dict): logger.warning( @@ -851,6 +861,8 @@ class RoomMemberHandler(object): }, headers=headers, ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") except Exception as e: logger.warning("Error when performing a v2 3pid lookup: %s", e) raise SynapseError( @@ -873,10 +885,13 @@ class RoomMemberHandler(object): if server_hostname not in data["signatures"]: raise AuthError(401, "No signature from server %s" % (server_hostname,)) for key_name, signature in data["signatures"][server_hostname].items(): - key_data = yield self.simple_http_client.get_json( - "%s%s/_matrix/identity/api/v1/pubkey/%s" - % (id_server_scheme, server_hostname, key_name) - ) + try: + key_data = yield self.simple_http_client.get_json( + "%s%s/_matrix/identity/api/v1/pubkey/%s" + % (id_server_scheme, server_hostname, key_name) + ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") if "public_key" not in key_data: raise AuthError( 401, "No public key named %s from %s" % (key_name, server_hostname) @@ -1051,6 +1066,8 @@ class RoomMemberHandler(object): invite_config, {"Authorization": create_id_access_token_header(id_access_token)}, ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") except HttpResponseException as e: if e.code != 404: logger.info("Failed to POST %s with JSON: %s", url, e) @@ -1067,6 +1084,8 @@ class RoomMemberHandler(object): data = yield self.simple_http_client.post_json_get_json( url, invite_config ) + except TimeoutError: + raise SynapseError(500, "Timed out contacting identity server") except HttpResponseException as e: logger.warning( "Error trying to call /store-invite on %s%s: %s", |