diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/auth.py | 81 |
1 files changed, 57 insertions, 24 deletions
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 95b0cfeb48..573c9db8a1 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -49,7 +49,6 @@ class AuthHandler(BaseHandler): """ super(AuthHandler, self).__init__(hs) self.checkers = { - LoginType.PASSWORD: self._check_password_auth, LoginType.RECAPTCHA: self._check_recaptcha, LoginType.EMAIL_IDENTITY: self._check_email_identity, LoginType.MSISDN: self._check_msisdn, @@ -78,15 +77,20 @@ class AuthHandler(BaseHandler): self.macaroon_gen = hs.get_macaroon_generator() self._password_enabled = hs.config.password_enabled - login_types = set() + # we keep this as a list despite the O(N^2) implication so that we can + # keep PASSWORD first and avoid confusing clients which pick the first + # type in the list. (NB that the spec doesn't require us to do so and + # clients which favour types that they don't understand over those that + # they do are technically broken) + login_types = [] if self._password_enabled: - login_types.add(LoginType.PASSWORD) + login_types.append(LoginType.PASSWORD) for provider in self.password_providers: if hasattr(provider, "get_supported_login_types"): - login_types.update( - provider.get_supported_login_types().keys() - ) - self._supported_login_types = frozenset(login_types) + for t in provider.get_supported_login_types().keys(): + if t not in login_types: + login_types.append(t) + self._supported_login_types = login_types @defer.inlineCallbacks def validate_user_via_ui_auth(self, requester, request_body, clientip): @@ -116,14 +120,27 @@ class AuthHandler(BaseHandler): a different user to `requester` """ - # we only support password login here - flows = [[LoginType.PASSWORD]] + # build a list of supported flows + flows = [ + [login_type] for login_type in self._supported_login_types + ] result, params, _ = yield self.check_auth( flows, request_body, clientip, ) - user_id = result[LoginType.PASSWORD] + # find the completed login type + for login_type in self._supported_login_types: + if login_type not in result: + continue + + user_id = result[login_type] + break + else: + # this can't happen + raise Exception( + "check_auth returned True but no successful login type", + ) # check that the UI auth matched the access token if user_id != requester.user.to_string(): @@ -210,14 +227,12 @@ class AuthHandler(BaseHandler): errordict = {} if 'type' in authdict: login_type = authdict['type'] - if login_type not in self.checkers: - raise LoginError(400, "", Codes.UNRECOGNIZED) try: - result = yield self.checkers[login_type](authdict, clientip) + result = yield self._check_auth_dict(authdict, clientip) if result: creds[login_type] = result self._save_session(session) - except LoginError, e: + except LoginError as e: if login_type == LoginType.EMAIL_IDENTITY: # riot used to have a bug where it would request a new # validation token (thus sending a new email) each time it @@ -226,7 +241,7 @@ class AuthHandler(BaseHandler): # # Grandfather in the old behaviour for now to avoid # breaking old riot deployments. - raise e + raise # this step failed. Merge the error dict into the response # so that the client can have another go. @@ -323,17 +338,35 @@ class AuthHandler(BaseHandler): return sess.setdefault('serverdict', {}).get(key, default) @defer.inlineCallbacks - def _check_password_auth(self, authdict, _): - if "user" not in authdict or "password" not in authdict: - raise LoginError(400, "", Codes.MISSING_PARAM) + def _check_auth_dict(self, authdict, clientip): + """Attempt to validate the auth dict provided by a client + + Args: + authdict (object): auth dict provided by the client + clientip (str): IP address of the client + + Returns: + Deferred: result of the stage verification. + + Raises: + StoreError if there was a problem accessing the database + SynapseError if there was a problem with the request + LoginError if there was an authentication problem. + """ + login_type = authdict['type'] + checker = self.checkers.get(login_type) + if checker is not None: + res = yield checker(authdict, clientip) + defer.returnValue(res) + + # build a v1-login-style dict out of the authdict and fall back to the + # v1 code + user_id = authdict.get("user") - user_id = authdict["user"] - password = authdict["password"] + if user_id is None: + raise SynapseError(400, "", Codes.MISSING_PARAM) - (canonical_id, callback) = yield self.validate_login(user_id, { - "type": LoginType.PASSWORD, - "password": password, - }) + (canonical_id, callback) = yield self.validate_login(user_id, authdict) defer.returnValue(canonical_id) @defer.inlineCallbacks |