# -*- coding: utf-8 -*- # Copyright 2015, 2016 OpenMarket Ltd # Copyright 2017 Vector Creations Ltd # Copyright 2018 New Vector Ltd # # 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 six.moves import http_client from twisted.internet import defer from synapse.api.constants import LoginType from synapse.api.errors import ( Codes, HttpResponseException, SynapseError, ThreepidValidationError, ) from synapse.config.emailconfig import ThreepidBehaviour from synapse.http.server import finish_request from synapse.http.servlet import ( RestServlet, assert_params_in_dict, parse_json_object_from_request, parse_string, ) from synapse.push.mailer import Mailer, load_jinja2_templates from synapse.util.msisdn import phone_number_to_msisdn from synapse.util.threepids import check_3pid_allowed from ._base import client_patterns, interactive_auth_handler logger = logging.getLogger(__name__) class EmailPasswordRequestTokenRestServlet(RestServlet): PATTERNS = client_patterns("/account/password/email/requestToken$") def __init__(self, hs): super(EmailPasswordRequestTokenRestServlet, self).__init__() self.hs = hs self.datastore = hs.get_datastore() self.config = hs.config self.identity_handler = hs.get_handlers().identity_handler if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL: template_html, template_text = load_jinja2_templates( self.config.email_template_dir, [ self.config.email_password_reset_template_html, self.config.email_password_reset_template_text, ], apply_format_ts_filter=True, apply_mxc_to_http_filter=True, public_baseurl=self.config.public_baseurl, ) self.mailer = Mailer( hs=self.hs, app_name=self.config.email_app_name, template_html=template_html, template_text=template_text, ) @defer.inlineCallbacks def on_POST(self, request): if self.config.threepid_behaviour_email == ThreepidBehaviour.OFF: if self.config.local_threepid_handling_disabled_due_to_email_config: logger.warn( "User password resets have been disabled due to lack of email config" ) raise SynapseError( 400, "Email-based password resets have been disabled on this server" ) body = parse_json_object_from_request(request) assert_params_in_dict(body, ["client_secret", "email", "send_attempt"]) # Extract params from body client_secret = body["client_secret"] email = body["email"] send_attempt = body["send_attempt"] next_link = body.get("next_link") # Optional param if not check_3pid_allowed(self.hs, "email", email): raise SynapseError( 403, "Your email domain is not authorized on this server", Codes.THREEPID_DENIED, ) existing_user_id = yield self.hs.get_datastore().get_user_id_by_threepid( "email", email ) if existing_user_id is None: raise SynapseError(400, "Email not found", Codes.THREEPID_NOT_FOUND) if self.config.threepid_behaviour_email == ThreepidBehaviour.REMOTE: assert self.hs.config.account_threepid_delegate_email # Have the configured identity server handle the request ret = yield self.identity_handler.requestEmailToken( self.hs.config.account_threepid_delegate_email, email, client_secret, send_attempt, next_link, ) else: # Send password reset emails from Synapse sid = yield self.identity_handler.send_threepid_validation( email, client_secret, send_attempt, self.mailer.send_password_reset_mail, next_link, ) # Wrap the session id in a JSON object ret = {"sid": sid} return 200, ret class MsisdnPasswordRequestTokenRestServlet(RestServlet): PATTERNS = client_patterns("/account/password/msisdn/requestToken$") def __init__(self, hs): super(MsisdnPasswordRequestTokenRestServlet, self).__init__() self.hs = hs self.datastore = self.hs.get_datastore() self.identity_handler = hs.get_handlers().identity_handler @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) assert_params_in_dict( body, ["client_secret", "country", "phone_number", "send_attempt"] ) client_secret = body["client_secret"] country = body["country"] phone_number = body["phone_number"] send_attempt = body["send_attempt"] next_link = body.get("next_link") # Optional param msisdn = phone_number_to_msisdn(country, phone_number) if not check_3pid_allowed(self.hs, "msisdn", msisdn): raise SynapseError( 403, "Account phone numbers are not authorized on this server", Codes.THREEPID_DENIED, ) existing_user_id = yield self.datastore.get_user_id_by_threepid( "msisdn", msisdn ) if existing_user_id is None: raise SynapseError(400, "MSISDN not found", Codes.THREEPID_NOT_FOUND) if not self.hs.config.account_threepid_delegate_msisdn: logger.warn( "No upstream msisdn account_threepid_delegate configured on the server to " "handle this request" ) raise SynapseError( 400, "Password reset by phone number is not supported on this homeserver", ) ret = yield self.identity_handler.requestMsisdnToken( self.hs.config.account_threepid_delegate_msisdn, country, phone_number, client_secret, send_attempt, next_link, ) return 200, ret class PasswordResetSubmitTokenServlet(RestServlet): """Handles 3PID validation token submission""" PATTERNS = client_patterns( "/password_reset/(?P[^/]*)/submit_token$", releases=(), unstable=True ) def __init__(self, hs): """ Args: hs (synapse.server.HomeServer): server """ super(PasswordResetSubmitTokenServlet, self).__init__() self.hs = hs self.auth = hs.get_auth() self.config = hs.config self.clock = hs.get_clock() self.store = hs.get_datastore() if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL: self.failure_email_template, = load_jinja2_templates( self.config.email_template_dir, [self.config.email_password_reset_template_failure_html], ) @defer.inlineCallbacks def on_GET(self, request, medium): # We currently only handle threepid token submissions for email if medium != "email": raise SynapseError( 400, "This medium is currently not supported for password resets" ) if self.config.threepid_behaviour_email == ThreepidBehaviour.OFF: if self.config.local_threepid_handling_disabled_due_to_email_config: logger.warn( "Password reset emails have been disabled due to lack of an email config" ) raise SynapseError( 400, "Email-based password resets are disabled on this server" ) sid = parse_string(request, "sid", required=True) client_secret = parse_string(request, "client_secret", required=True) token = parse_string(request, "token", required=True) # Attempt to validate a 3PID session try: # Mark the session as valid next_link = yield self.store.validate_threepid_session( sid, client_secret, token, self.clock.time_msec() ) # Perform a 302 redirect if next_link is set if next_link: if next_link.startswith("file:///"): logger.warn( "Not redirecting to next_link as it is a local file: address" ) else: request.setResponseCode(302) request.setHeader("Location", next_link) finish_request(request) return None # Otherwise show the success template html = self.config.email_password_reset_template_success_html request.setResponseCode(200) except ThreepidValidationError as e: request.setResponseCode(e.code) # Show a failure page with a reason template_vars = {"failure_reason": e.msg} html = self.failure_email_template.render(**template_vars) request.write(html.encode("utf-8")) finish_request(request) class PasswordRestServlet(RestServlet): PATTERNS = client_patterns("/account/password$") def __init__(self, hs): super(PasswordRestServlet, self).__init__() self.hs = hs self.auth = hs.get_auth() self.auth_handler = hs.get_auth_handler() self.datastore = self.hs.get_datastore() self._set_password_handler = hs.get_set_password_handler() @interactive_auth_handler @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) # there are two possibilities here. Either the user does not have an # access token, and needs to do a password reset; or they have one and # need to validate their identity. # # In the first case, we offer a couple of means of identifying # themselves (email and msisdn, though it's unclear if msisdn actually # works). # # In the second case, we require a password to confirm their identity. if self.auth.has_access_token(request): requester = yield self.auth.get_user_by_req(request) params = yield self.auth_handler.validate_user_via_ui_auth( requester, body, self.hs.get_ip_from_request(request) ) user_id = requester.user.to_string() else: requester = None result, params, _ = yield self.auth_handler.check_auth( [[LoginType.EMAIL_IDENTITY], [LoginType.MSISDN]], body, self.hs.get_ip_from_request(request), ) if LoginType.EMAIL_IDENTITY in result: threepid = result[LoginType.EMAIL_IDENTITY] if "medium" not in threepid or "address" not in threepid: raise SynapseError(500, "Malformed threepid") if threepid["medium"] == "email": # For emails, transform the address to lowercase. # We store all email addreses as lowercase in the DB. # (See add_threepid in synapse/handlers/auth.py) threepid["address"] = threepid["address"].lower() # if using email, we must know about the email they're authing with! threepid_user_id = yield self.datastore.get_user_id_by_threepid( threepid["medium"], threepid["address"] ) if not threepid_user_id: raise SynapseError(404, "Email address not found", Codes.NOT_FOUND) user_id = threepid_user_id else: logger.error("Auth succeeded but no known type! %r", result.keys()) raise SynapseError(500, "", Codes.UNKNOWN) assert_params_in_dict(params, ["new_password"]) new_password = params["new_password"] yield self._set_password_handler.set_password(user_id, new_password, requester) return 200, {} def on_OPTIONS(self, _): return 200, {} class DeactivateAccountRestServlet(RestServlet): PATTERNS = client_patterns("/account/deactivate$") def __init__(self, hs): super(DeactivateAccountRestServlet, self).__init__() self.hs = hs self.auth = hs.get_auth() self.auth_handler = hs.get_auth_handler() self._deactivate_account_handler = hs.get_deactivate_account_handler() @interactive_auth_handler @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) erase = body.get("erase", False) if not isinstance(erase, bool): raise SynapseError( http_client.BAD_REQUEST, "Param 'erase' must be a boolean, if given", Codes.BAD_JSON, ) requester = yield self.auth.get_user_by_req(request) # allow ASes to dectivate their own users if requester.app_service: yield self._deactivate_account_handler.deactivate_account( requester.user.to_string(), erase ) return 200, {} yield self.auth_handler.validate_user_via_ui_auth( requester, body, self.hs.get_ip_from_request(request) ) result = yield self._deactivate_account_handler.deactivate_account( requester.user.to_string(), erase, id_server=body.get("id_server") ) if result: id_server_unbind_result = "success" else: id_server_unbind_result = "no-support" return 200, {"id_server_unbind_result": id_server_unbind_result} class EmailThreepidRequestTokenRestServlet(RestServlet): PATTERNS = client_patterns("/account/3pid/email/requestToken$") def __init__(self, hs): super(EmailThreepidRequestTokenRestServlet, self).__init__() self.hs = hs self.config = hs.config self.identity_handler = hs.get_handlers().identity_handler self.store = self.hs.get_datastore() if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL: template_html, template_text = load_jinja2_templates( self.config.email_template_dir, [ self.config.email_add_threepid_template_html, self.config.email_add_threepid_template_text, ], public_baseurl=self.config.public_baseurl, ) self.mailer = Mailer( hs=self.hs, app_name=self.config.email_app_name, template_html=template_html, template_text=template_text, ) @defer.inlineCallbacks def on_POST(self, request): if self.config.threepid_behaviour_email == ThreepidBehaviour.OFF: if self.config.local_threepid_handling_disabled_due_to_email_config: logger.warn( "Adding emails have been disabled due to lack of an email config" ) raise SynapseError( 400, "Adding an email to your account is disabled on this server" ) body = parse_json_object_from_request(request) assert_params_in_dict(body, ["client_secret", "email", "send_attempt"]) client_secret = body["client_secret"] email = body["email"] send_attempt = body["send_attempt"] next_link = body.get("next_link") # Optional param if not check_3pid_allowed(self.hs, "email", email): raise SynapseError( 403, "Your email domain is not authorized on this server", Codes.THREEPID_DENIED, ) existing_user_id = yield self.store.get_user_id_by_threepid( "email", body["email"] ) if existing_user_id is not None: raise SynapseError(400, "Email is already in use", Codes.THREEPID_IN_USE) if self.config.threepid_behaviour_email == ThreepidBehaviour.REMOTE: assert self.hs.config.account_threepid_delegate_email # Have the configured identity server handle the request ret = yield self.identity_handler.requestEmailToken( self.hs.config.account_threepid_delegate_email, email, client_secret, send_attempt, next_link, ) else: # Send threepid validation emails from Synapse sid = yield self.identity_handler.send_threepid_validation( email, client_secret, send_attempt, self.mailer.send_add_threepid_mail, next_link, ) # Wrap the session id in a JSON object ret = {"sid": sid} return 200, ret class MsisdnThreepidRequestTokenRestServlet(RestServlet): PATTERNS = client_patterns("/account/3pid/msisdn/requestToken$") def __init__(self, hs): self.hs = hs super(MsisdnThreepidRequestTokenRestServlet, self).__init__() self.store = self.hs.get_datastore() self.identity_handler = hs.get_handlers().identity_handler @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) assert_params_in_dict( body, ["id_server", "client_secret", "country", "phone_number", "send_attempt"], ) id_server = "https://" + body["id_server"] # Assume https client_secret = body["client_secret"] country = body["country"] phone_number = body["phone_number"] send_attempt = body["send_attempt"] next_link = body.get("next_link") # Optional param msisdn = phone_number_to_msisdn(country, phone_number) if not check_3pid_allowed(self.hs, "msisdn", msisdn): raise SynapseError( 403, "Account phone numbers are not authorized on this server", Codes.THREEPID_DENIED, ) existing_user_id = yield self.store.get_user_id_by_threepid("msisdn", msisdn) if existing_user_id is not None: raise SynapseError(400, "MSISDN is already in use", Codes.THREEPID_IN_USE) ret = yield self.identity_handler.requestMsisdnToken( id_server, country, phone_number, client_secret, send_attempt, next_link ) return 200, ret class AddThreepidSubmitTokenServlet(RestServlet): """Handles 3PID validation token submission for adding an email to a user's account""" PATTERNS = client_patterns( "/add_threepid/email/submit_token$", releases=(), unstable=True ) def __init__(self, hs): """ Args: hs (synapse.server.HomeServer): server """ super().__init__() self.config = hs.config self.clock = hs.get_clock() self.store = hs.get_datastore() if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL: self.failure_email_template, = load_jinja2_templates( self.config.email_template_dir, [self.config.email_add_threepid_template_failure_html], ) @defer.inlineCallbacks def on_GET(self, request): if self.config.threepid_behaviour_email == ThreepidBehaviour.OFF: if self.config.local_threepid_handling_disabled_due_to_email_config: logger.warn( "Adding emails have been disabled due to lack of an email config" ) raise SynapseError( 400, "Adding an email to your account is disabled on this server" ) elif self.config.threepid_behaviour_email == ThreepidBehaviour.REMOTE: raise SynapseError( 400, "This homeserver is not validating threepids. Use an identity server " "instead.", ) sid = parse_string(request, "sid", required=True) client_secret = parse_string(request, "client_secret", required=True) token = parse_string(request, "token", required=True) # Attempt to validate a 3PID session try: # Mark the session as valid next_link = yield self.store.validate_threepid_session( sid, client_secret, token, self.clock.time_msec() ) # Perform a 302 redirect if next_link is set if next_link: if next_link.startswith("file:///"): logger.warn( "Not redirecting to next_link as it is a local file: address" ) else: request.setResponseCode(302) request.setHeader("Location", next_link) finish_request(request) return None # Otherwise show the success template html = self.config.email_add_threepid_template_success_html_content request.setResponseCode(200) except ThreepidValidationError as e: request.setResponseCode(e.code) # Show a failure page with a reason template_vars = {"failure_reason": e.msg} html = self.failure_email_template.render(**template_vars) request.write(html.encode("utf-8")) finish_request(request) class ThreepidRestServlet(RestServlet): PATTERNS = client_patterns("/account/3pid$") def __init__(self, hs): super(ThreepidRestServlet, self).__init__() self.hs = hs self.identity_handler = hs.get_handlers().identity_handler self.auth = hs.get_auth() self.auth_handler = hs.get_auth_handler() self.datastore = self.hs.get_datastore() @defer.inlineCallbacks def on_GET(self, request): requester = yield self.auth.get_user_by_req(request) threepids = yield self.datastore.user_get_threepids(requester.user.to_string()) return 200, {"threepids": threepids} @defer.inlineCallbacks def on_POST(self, request): requester = yield self.auth.get_user_by_req(request) user_id = requester.user.to_string() body = parse_json_object_from_request(request) threepid_creds = body.get("threePidCreds") or body.get("three_pid_creds") if threepid_creds is None: raise SynapseError( 400, "Missing param three_pid_creds", Codes.MISSING_PARAM ) assert_params_in_dict(threepid_creds, ["client_secret", "sid"]) client_secret = threepid_creds["client_secret"] sid = threepid_creds["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 try: validation_session = yield self.identity_handler.threepid_from_creds( self.hs.config.account_threepid_delegate_email, threepid_creds ) except HttpResponseException: logger.debug( "%s reported non-validated threepid: %s", 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.datastore.get_threepid_validation_session( "email", client_secret, sid=sid, validated=True ) # 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 containing an "error" key # See https://github.com/matrix-org/sydent/issues/215 for details if validation_session and "error" not in validation_session: yield self._add_threepid_to_account(user_id, validation_session) return 200, {} # Try to validate as msisdn if self.hs.config.account_threepid_delegate_msisdn: # Ask our delegated msisdn identity server try: validation_session = yield self.identity_handler.threepid_from_creds( self.hs.config.account_threepid_delegate_msisdn, threepid_creds ) except HttpResponseException: logger.debug( "%s reported non-validated threepid: %s", self.hs.config.account_threepid_delegate_email, threepid_creds, ) # Check that validation_session isn't actually an error due to old Sydent instances # See explanatory comment above if validation_session and "error" not in validation_session: yield self._add_threepid_to_account(user_id, validation_session) return 200, {} raise SynapseError( 400, "No validated 3pid session found", Codes.THREEPID_AUTH_FAILED ) @defer.inlineCallbacks def _add_threepid_to_account(self, user_id, validation_session): """Add a threepid wrapped in a validation_session dict to an account Args: user_id (str): The mxid of the user to add this 3PID to validation_session (dict): A dict containing the following: * medium - medium of the threepid * address - address of the threepid * validated_at - timestamp of when the validation occurred """ yield self.auth_handler.add_threepid( user_id, validation_session["medium"], validation_session["address"], validation_session["validated_at"], ) class ThreepidUnbindRestServlet(RestServlet): PATTERNS = client_patterns("/account/3pid/unbind$", releases=(), unstable=True) def __init__(self, hs): super(ThreepidUnbindRestServlet, self).__init__() self.hs = hs self.identity_handler = hs.get_handlers().identity_handler self.auth = hs.get_auth() self.datastore = self.hs.get_datastore() @defer.inlineCallbacks def on_POST(self, request): """Unbind the given 3pid from a specific identity server, or identity servers that are known to have this 3pid bound """ requester = yield self.auth.get_user_by_req(request) body = parse_json_object_from_request(request) assert_params_in_dict(body, ["medium", "address"]) medium = body.get("medium") address = body.get("address") id_server = body.get("id_server") # Attempt to unbind the threepid from an identity server. If id_server is None, try to # unbind from all identity servers this threepid has been added to in the past result = yield self.identity_handler.try_unbind_threepid( requester.user.to_string(), {"address": address, "medium": medium, "id_server": id_server}, ) return 200, {"id_server_unbind_result": "success" if result else "no-support"} class ThreepidDeleteRestServlet(RestServlet): PATTERNS = client_patterns("/account/3pid/delete$") def __init__(self, hs): super(ThreepidDeleteRestServlet, self).__init__() self.auth = hs.get_auth() self.auth_handler = hs.get_auth_handler() @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) assert_params_in_dict(body, ["medium", "address"]) requester = yield self.auth.get_user_by_req(request) user_id = requester.user.to_string() try: ret = yield self.auth_handler.delete_threepid( user_id, body["medium"], body["address"], body.get("id_server") ) except Exception: # NB. This endpoint should succeed if there is nothing to # delete, so it should only throw if something is wrong # that we ought to care about. logger.exception("Failed to remove threepid") raise SynapseError(500, "Failed to remove threepid") if ret: id_server_unbind_result = "success" else: id_server_unbind_result = "no-support" return 200, {"id_server_unbind_result": id_server_unbind_result} class WhoamiRestServlet(RestServlet): PATTERNS = client_patterns("/account/whoami$") def __init__(self, hs): super(WhoamiRestServlet, self).__init__() self.auth = hs.get_auth() @defer.inlineCallbacks def on_GET(self, request): requester = yield self.auth.get_user_by_req(request) return 200, {"user_id": requester.user.to_string()} def register_servlets(hs, http_server): EmailPasswordRequestTokenRestServlet(hs).register(http_server) MsisdnPasswordRequestTokenRestServlet(hs).register(http_server) PasswordResetSubmitTokenServlet(hs).register(http_server) PasswordRestServlet(hs).register(http_server) DeactivateAccountRestServlet(hs).register(http_server) EmailThreepidRequestTokenRestServlet(hs).register(http_server) MsisdnThreepidRequestTokenRestServlet(hs).register(http_server) AddThreepidSubmitTokenServlet(hs).register(http_server) ThreepidRestServlet(hs).register(http_server) ThreepidUnbindRestServlet(hs).register(http_server) ThreepidDeleteRestServlet(hs).register(http_server) WhoamiRestServlet(hs).register(http_server)