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Merge pull request #3276 from matrix-org/dbkr/unbind
Remove email addresses / phone numbers from ID servers when they're removed from synapse
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commit
187a546bff
@ -825,6 +825,15 @@ class AuthHandler(BaseHandler):
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if medium == 'email':
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address = address.lower()
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identity_handler = self.hs.get_handlers().identity_handler
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yield identity_handler.unbind_threepid(
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user_id,
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{
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'medium': medium,
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'address': address,
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},
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)
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ret = yield self.store.user_delete_threepid(
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user_id, medium, address,
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)
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@ -17,6 +17,7 @@ from twisted.internet import defer, reactor
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from ._base import BaseHandler
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from synapse.types import UserID, create_requester
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from synapse.util.logcontext import run_in_background
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from synapse.api.errors import SynapseError
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import logging
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@ -30,6 +31,7 @@ class DeactivateAccountHandler(BaseHandler):
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self._auth_handler = hs.get_auth_handler()
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self._device_handler = hs.get_device_handler()
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self._room_member_handler = hs.get_room_member_handler()
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self._identity_handler = hs.get_handlers().identity_handler
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self.user_directory_handler = hs.get_user_directory_handler()
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# Flag that indicates whether the process to part users from rooms is running
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@ -52,14 +54,35 @@ class DeactivateAccountHandler(BaseHandler):
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# FIXME: Theoretically there is a race here wherein user resets
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# password using threepid.
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# first delete any devices belonging to the user, which will also
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# delete threepids first. We remove these from the IS so if this fails,
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# leave the user still active so they can try again.
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# Ideally we would prevent password resets and then do this in the
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# background thread.
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threepids = yield self.store.user_get_threepids(user_id)
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for threepid in threepids:
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try:
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yield self._identity_handler.unbind_threepid(
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user_id,
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{
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'medium': threepid['medium'],
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'address': threepid['address'],
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},
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)
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except Exception:
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# Do we want this to be a fatal error or should we carry on?
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logger.exception("Failed to remove threepid from ID server")
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raise SynapseError(400, "Failed to remove threepid from ID server")
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yield self.store.user_delete_threepid(
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user_id, threepid['medium'], threepid['address'],
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)
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# delete any devices belonging to the user, which will also
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# delete corresponding access tokens.
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yield self._device_handler.delete_all_devices_for_user(user_id)
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# then delete any remaining access tokens which weren't associated with
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# a device.
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yield self._auth_handler.delete_access_tokens_for_user(user_id)
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yield self.store.user_delete_threepids(user_id)
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yield self.store.user_set_password_hash(user_id, None)
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# Add the user to a table of users pending deactivation (ie.
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@ -1,6 +1,7 @@
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# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2017 Vector Creations Ltd
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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@ -38,6 +39,7 @@ class IdentityHandler(BaseHandler):
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super(IdentityHandler, self).__init__(hs)
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self.http_client = hs.get_simple_http_client()
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self.federation_http_client = hs.get_http_client()
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self.trusted_id_servers = set(hs.config.trusted_third_party_id_servers)
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self.trust_any_id_server_just_for_testing_do_not_use = (
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@ -138,6 +140,52 @@ class IdentityHandler(BaseHandler):
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data = json.loads(e.msg)
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defer.returnValue(data)
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@defer.inlineCallbacks
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def unbind_threepid(self, mxid, threepid):
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"""
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Removes a binding from an identity server
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Args:
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mxid (str): Matrix user ID of binding to be removed
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threepid (dict): Dict with medium & address of binding to be removed
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Returns:
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Deferred[bool]: True on success, otherwise False
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"""
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logger.debug("unbinding threepid %r from %s", threepid, mxid)
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if not self.trusted_id_servers:
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logger.warn("Can't unbind threepid: no trusted ID servers set in config")
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defer.returnValue(False)
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# We don't track what ID server we added 3pids on (perhaps we ought to)
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# but we assume that any of the servers in the trusted list are in the
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# same ID server federation, so we can pick any one of them to send the
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# deletion request to.
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id_server = next(iter(self.trusted_id_servers))
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url = "https://%s/_matrix/identity/api/v1/3pid/unbind" % (id_server,)
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content = {
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"mxid": mxid,
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"threepid": threepid,
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}
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headers = {}
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# we abuse the federation http client to sign the request, but we have to send it
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# using the normal http client since we don't want the SRV lookup and want normal
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# 'browser-like' HTTPS.
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self.federation_http_client.sign_request(
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destination=None,
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method='POST',
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url_bytes='/_matrix/identity/api/v1/3pid/unbind'.encode('ascii'),
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headers_dict=headers,
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content=content,
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destination_is=id_server,
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)
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yield self.http_client.post_json_get_json(
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url,
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content,
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headers,
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)
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defer.returnValue(True)
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@defer.inlineCallbacks
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def requestEmailToken(self, id_server, email, client_secret, send_attempt, **kwargs):
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yield run_on_reactor()
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@ -260,14 +260,35 @@ class MatrixFederationHttpClient(object):
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defer.returnValue(response)
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def sign_request(self, destination, method, url_bytes, headers_dict,
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content=None):
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content=None, destination_is=None):
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"""
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Signs a request by adding an Authorization header to headers_dict
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Args:
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destination (bytes|None): The desination home server of the request.
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May be None if the destination is an identity server, in which case
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destination_is must be non-None.
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method (bytes): The HTTP method of the request
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url_bytes (bytes): The URI path of the request
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headers_dict (dict): Dictionary of request headers to append to
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content (bytes): The body of the request
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destination_is (bytes): As 'destination', but if the destination is an
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identity server
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Returns:
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None
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"""
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request = {
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"method": method,
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"uri": url_bytes,
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"origin": self.server_name,
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"destination": destination,
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}
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if destination is not None:
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request["destination"] = destination
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if destination_is is not None:
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request["destination_is"] = destination_is
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if content is not None:
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request["content"] = content
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@ -381,9 +381,16 @@ class ThreepidDeleteRestServlet(RestServlet):
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requester = yield self.auth.get_user_by_req(request)
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user_id = requester.user.to_string()
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yield self.auth_handler.delete_threepid(
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user_id, body['medium'], body['address']
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)
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try:
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yield self.auth_handler.delete_threepid(
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user_id, body['medium'], body['address']
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)
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except Exception:
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# NB. This endpoint should succeed if there is nothing to
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# delete, so it should only throw if something is wrong
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# that we ought to care about.
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logger.exception("Failed to remove threepid")
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raise SynapseError(500, "Failed to remove threepid")
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defer.returnValue((200, {}))
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@ -460,15 +460,6 @@ class RegistrationStore(RegistrationWorkerStore,
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defer.returnValue(ret['user_id'])
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defer.returnValue(None)
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def user_delete_threepids(self, user_id):
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return self._simple_delete(
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"user_threepids",
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keyvalues={
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"user_id": user_id,
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},
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desc="user_delete_threepids",
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)
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def user_delete_threepid(self, user_id, medium, address):
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return self._simple_delete(
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"user_threepids",
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