mirror of
https://mau.dev/maunium/synapse.git
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30af161af2
Implements MSC2290. This PR adds two new endpoints, /unstable/account/3pid/add and /unstable/account/3pid/bind. Depending on the progress of that MSC the unstable prefix may go away. This PR also removes the blacklist on some 3PID tests which occurs in #6042, as the corresponding Sytest PR changes them to use the new endpoints. Finally, it also modifies the account deactivation code such that it doesn't just try to deactivate 3PIDs that were bound to the user's account, but any 3PIDs that were bound through the homeserver on that user's account.
725 lines
28 KiB
Python
725 lines
28 KiB
Python
# -*- 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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#
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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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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import hmac
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import logging
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from six import string_types
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from twisted.internet import defer
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import synapse
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import synapse.types
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from synapse.api.constants import LoginType
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from synapse.api.errors import (
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Codes,
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LimitExceededError,
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SynapseError,
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ThreepidValidationError,
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UnrecognizedRequestError,
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)
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from synapse.config.emailconfig import ThreepidBehaviour
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from synapse.config.ratelimiting import FederationRateLimitConfig
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from synapse.config.server import is_threepid_reserved
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from synapse.http.server import finish_request
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from synapse.http.servlet import (
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RestServlet,
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assert_params_in_dict,
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parse_json_object_from_request,
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parse_string,
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)
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from synapse.push.mailer import load_jinja2_templates
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from synapse.util.msisdn import phone_number_to_msisdn
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from synapse.util.ratelimitutils import FederationRateLimiter
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from synapse.util.threepids import check_3pid_allowed
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from ._base import client_patterns, interactive_auth_handler
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# We ought to be using hmac.compare_digest() but on older pythons it doesn't
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# exist. It's a _really minor_ security flaw to use plain string comparison
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# because the timing attack is so obscured by all the other code here it's
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# unlikely to make much difference
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if hasattr(hmac, "compare_digest"):
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compare_digest = hmac.compare_digest
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else:
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def compare_digest(a, b):
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return a == b
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logger = logging.getLogger(__name__)
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class EmailRegisterRequestTokenRestServlet(RestServlet):
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PATTERNS = client_patterns("/register/email/requestToken$")
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(EmailRegisterRequestTokenRestServlet, self).__init__()
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self.hs = hs
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self.identity_handler = hs.get_handlers().identity_handler
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self.config = hs.config
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if self.hs.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
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from synapse.push.mailer import Mailer, load_jinja2_templates
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template_html, template_text = load_jinja2_templates(
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self.config.email_template_dir,
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[
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self.config.email_registration_template_html,
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self.config.email_registration_template_text,
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],
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apply_format_ts_filter=True,
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apply_mxc_to_http_filter=True,
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public_baseurl=self.config.public_baseurl,
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)
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self.mailer = Mailer(
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hs=self.hs,
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app_name=self.config.email_app_name,
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template_html=template_html,
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template_text=template_text,
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)
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@defer.inlineCallbacks
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def on_POST(self, request):
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if self.hs.config.threepid_behaviour_email == ThreepidBehaviour.OFF:
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if self.hs.config.local_threepid_handling_disabled_due_to_email_config:
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logger.warn(
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"Email registration has been disabled due to lack of email config"
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)
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raise SynapseError(
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400, "Email-based registration has been disabled on this server"
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)
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body = parse_json_object_from_request(request)
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assert_params_in_dict(body, ["client_secret", "email", "send_attempt"])
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# Extract params from body
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client_secret = body["client_secret"]
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email = body["email"]
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send_attempt = body["send_attempt"]
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next_link = body.get("next_link") # Optional param
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if not check_3pid_allowed(self.hs, "email", email):
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raise SynapseError(
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403,
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"Your email domain is not authorized to register on this server",
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Codes.THREEPID_DENIED,
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)
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existing_user_id = yield self.hs.get_datastore().get_user_id_by_threepid(
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"email", body["email"]
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)
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if existing_user_id is not None:
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raise SynapseError(400, "Email is already in use", Codes.THREEPID_IN_USE)
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if self.config.threepid_behaviour_email == ThreepidBehaviour.REMOTE:
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assert self.hs.config.account_threepid_delegate_email
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# Have the configured identity server handle the request
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ret = yield self.identity_handler.requestEmailToken(
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self.hs.config.account_threepid_delegate_email,
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email,
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client_secret,
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send_attempt,
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next_link,
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)
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else:
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# Send registration emails from Synapse
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sid = yield self.identity_handler.send_threepid_validation(
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email,
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client_secret,
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send_attempt,
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self.mailer.send_registration_mail,
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next_link,
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)
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# Wrap the session id in a JSON object
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ret = {"sid": sid}
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return 200, ret
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class MsisdnRegisterRequestTokenRestServlet(RestServlet):
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PATTERNS = client_patterns("/register/msisdn/requestToken$")
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(MsisdnRegisterRequestTokenRestServlet, self).__init__()
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self.hs = hs
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self.identity_handler = hs.get_handlers().identity_handler
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@defer.inlineCallbacks
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def on_POST(self, request):
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body = parse_json_object_from_request(request)
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assert_params_in_dict(
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body, ["client_secret", "country", "phone_number", "send_attempt"]
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)
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client_secret = body["client_secret"]
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country = body["country"]
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phone_number = body["phone_number"]
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send_attempt = body["send_attempt"]
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next_link = body.get("next_link") # Optional param
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msisdn = phone_number_to_msisdn(country, phone_number)
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if not check_3pid_allowed(self.hs, "msisdn", msisdn):
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raise SynapseError(
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403,
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"Phone numbers are not authorized to register on this server",
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Codes.THREEPID_DENIED,
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)
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existing_user_id = yield self.hs.get_datastore().get_user_id_by_threepid(
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"msisdn", msisdn
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)
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if existing_user_id is not None:
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raise SynapseError(
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400, "Phone number is already in use", Codes.THREEPID_IN_USE
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)
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if not self.hs.config.account_threepid_delegate_msisdn:
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logger.warn(
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"No upstream msisdn account_threepid_delegate configured on the server to "
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"handle this request"
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)
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raise SynapseError(
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400, "Registration by phone number is not supported on this homeserver"
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)
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ret = yield self.identity_handler.requestMsisdnToken(
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self.hs.config.account_threepid_delegate_msisdn,
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country,
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phone_number,
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client_secret,
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send_attempt,
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next_link,
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)
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return 200, ret
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class RegistrationSubmitTokenServlet(RestServlet):
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"""Handles registration 3PID validation token submission"""
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PATTERNS = client_patterns(
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"/registration/(?P<medium>[^/]*)/submit_token$", releases=(), unstable=True
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)
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(RegistrationSubmitTokenServlet, self).__init__()
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self.hs = hs
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self.auth = hs.get_auth()
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self.config = hs.config
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self.clock = hs.get_clock()
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self.store = hs.get_datastore()
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if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
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self.failure_email_template, = load_jinja2_templates(
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self.config.email_template_dir,
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[self.config.email_registration_template_failure_html],
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)
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if self.config.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
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self.failure_email_template, = load_jinja2_templates(
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self.config.email_template_dir,
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[self.config.email_registration_template_failure_html],
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)
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@defer.inlineCallbacks
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def on_GET(self, request, medium):
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if medium != "email":
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raise SynapseError(
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400, "This medium is currently not supported for registration"
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)
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if self.config.threepid_behaviour_email == ThreepidBehaviour.OFF:
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if self.config.local_threepid_handling_disabled_due_to_email_config:
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logger.warn(
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"User registration via email has been disabled due to lack of email config"
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)
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raise SynapseError(
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400, "Email-based registration is disabled on this server"
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)
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sid = parse_string(request, "sid", required=True)
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client_secret = parse_string(request, "client_secret", required=True)
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token = parse_string(request, "token", required=True)
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# Attempt to validate a 3PID session
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try:
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# Mark the session as valid
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next_link = yield self.store.validate_threepid_session(
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sid, client_secret, token, self.clock.time_msec()
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)
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# Perform a 302 redirect if next_link is set
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if next_link:
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if next_link.startswith("file:///"):
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logger.warn(
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"Not redirecting to next_link as it is a local file: address"
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)
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else:
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request.setResponseCode(302)
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request.setHeader("Location", next_link)
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finish_request(request)
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return None
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# Otherwise show the success template
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html = self.config.email_registration_template_success_html_content
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request.setResponseCode(200)
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except ThreepidValidationError as e:
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request.setResponseCode(e.code)
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# Show a failure page with a reason
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template_vars = {"failure_reason": e.msg}
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html = self.failure_email_template.render(**template_vars)
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request.write(html.encode("utf-8"))
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finish_request(request)
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class UsernameAvailabilityRestServlet(RestServlet):
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PATTERNS = client_patterns("/register/available")
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(UsernameAvailabilityRestServlet, self).__init__()
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self.hs = hs
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self.registration_handler = hs.get_registration_handler()
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self.ratelimiter = FederationRateLimiter(
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hs.get_clock(),
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FederationRateLimitConfig(
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# Time window of 2s
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window_size=2000,
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# Artificially delay requests if rate > sleep_limit/window_size
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sleep_limit=1,
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# Amount of artificial delay to apply
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sleep_msec=1000,
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# Error with 429 if more than reject_limit requests are queued
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reject_limit=1,
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# Allow 1 request at a time
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concurrent_requests=1,
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),
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)
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@defer.inlineCallbacks
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def on_GET(self, request):
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if not self.hs.config.enable_registration:
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raise SynapseError(
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403, "Registration has been disabled", errcode=Codes.FORBIDDEN
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)
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ip = self.hs.get_ip_from_request(request)
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with self.ratelimiter.ratelimit(ip) as wait_deferred:
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yield wait_deferred
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username = parse_string(request, "username", required=True)
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yield self.registration_handler.check_username(username)
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return 200, {"available": True}
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class RegisterRestServlet(RestServlet):
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PATTERNS = client_patterns("/register$")
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(RegisterRestServlet, self).__init__()
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self.hs = hs
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self.auth = hs.get_auth()
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self.store = hs.get_datastore()
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self.auth_handler = hs.get_auth_handler()
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self.registration_handler = hs.get_registration_handler()
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self.identity_handler = hs.get_handlers().identity_handler
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self.room_member_handler = hs.get_room_member_handler()
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self.macaroon_gen = hs.get_macaroon_generator()
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self.ratelimiter = hs.get_registration_ratelimiter()
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self.clock = hs.get_clock()
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@interactive_auth_handler
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@defer.inlineCallbacks
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def on_POST(self, request):
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body = parse_json_object_from_request(request)
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client_addr = request.getClientIP()
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time_now = self.clock.time()
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allowed, time_allowed = self.ratelimiter.can_do_action(
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client_addr,
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time_now_s=time_now,
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rate_hz=self.hs.config.rc_registration.per_second,
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burst_count=self.hs.config.rc_registration.burst_count,
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update=False,
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)
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if not allowed:
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raise LimitExceededError(
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retry_after_ms=int(1000 * (time_allowed - time_now))
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)
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kind = b"user"
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if b"kind" in request.args:
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kind = request.args[b"kind"][0]
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if kind == b"guest":
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ret = yield self._do_guest_registration(body, address=client_addr)
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return ret
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elif kind != b"user":
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raise UnrecognizedRequestError(
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"Do not understand membership kind: %s" % (kind,)
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)
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# we do basic sanity checks here because the auth layer will store these
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# in sessions. Pull out the username/password provided to us.
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if "password" in body:
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if (
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not isinstance(body["password"], string_types)
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or len(body["password"]) > 512
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):
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raise SynapseError(400, "Invalid password")
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desired_username = None
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if "username" in body:
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if (
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not isinstance(body["username"], string_types)
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or len(body["username"]) > 512
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):
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raise SynapseError(400, "Invalid username")
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desired_username = body["username"]
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appservice = None
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if self.auth.has_access_token(request):
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appservice = yield self.auth.get_appservice_by_req(request)
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# fork off as soon as possible for ASes which have completely
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# different registration flows to normal users
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# == Application Service Registration ==
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if appservice:
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# Set the desired user according to the AS API (which uses the
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# 'user' key not 'username'). Since this is a new addition, we'll
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# fallback to 'username' if they gave one.
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desired_username = body.get("user", desired_username)
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# XXX we should check that desired_username is valid. Currently
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# we give appservices carte blanche for any insanity in mxids,
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# because the IRC bridges rely on being able to register stupid
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# IDs.
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access_token = self.auth.get_access_token_from_request(request)
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if isinstance(desired_username, string_types):
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result = yield self._do_appservice_registration(
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desired_username, access_token, body
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)
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return 200, result # we throw for non 200 responses
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# for regular registration, downcase the provided username before
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# attempting to register it. This should mean
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# that people who try to register with upper-case in their usernames
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# don't get a nasty surprise. (Note that we treat username
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# case-insenstively in login, so they are free to carry on imagining
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# that their username is CrAzYh4cKeR if that keeps them happy)
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if desired_username is not None:
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desired_username = desired_username.lower()
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# == Normal User Registration == (everyone else)
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if not self.hs.config.enable_registration:
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raise SynapseError(403, "Registration has been disabled")
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guest_access_token = body.get("guest_access_token", None)
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if "initial_device_display_name" in body and "password" not in body:
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# ignore 'initial_device_display_name' if sent without
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# a password to work around a client bug where it sent
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# the 'initial_device_display_name' param alone, wiping out
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# the original registration params
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logger.warn("Ignoring initial_device_display_name without password")
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del body["initial_device_display_name"]
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session_id = self.auth_handler.get_session_id(body)
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registered_user_id = None
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if session_id:
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# if we get a registered user id out of here, it means we previously
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# registered a user for this session, so we could just return the
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# user here. We carry on and go through the auth checks though,
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# for paranoia.
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registered_user_id = self.auth_handler.get_session_data(
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session_id, "registered_user_id", None
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)
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if desired_username is not None:
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yield self.registration_handler.check_username(
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desired_username,
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guest_access_token=guest_access_token,
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assigned_user_id=registered_user_id,
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)
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# FIXME: need a better error than "no auth flow found" for scenarios
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# where we required 3PID for registration but the user didn't give one
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require_email = "email" in self.hs.config.registrations_require_3pid
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require_msisdn = "msisdn" in self.hs.config.registrations_require_3pid
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show_msisdn = True
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if self.hs.config.disable_msisdn_registration:
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show_msisdn = False
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require_msisdn = False
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flows = []
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if self.hs.config.enable_registration_captcha:
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# only support 3PIDless registration if no 3PIDs are required
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if not require_email and not require_msisdn:
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# Also add a dummy flow here, otherwise if a client completes
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# recaptcha first we'll assume they were going for this flow
|
|
# and complete the request, when they could have been trying to
|
|
# complete one of the flows with email/msisdn auth.
|
|
flows.extend([[LoginType.RECAPTCHA, LoginType.DUMMY]])
|
|
# only support the email-only flow if we don't require MSISDN 3PIDs
|
|
if not require_msisdn:
|
|
flows.extend([[LoginType.RECAPTCHA, LoginType.EMAIL_IDENTITY]])
|
|
|
|
if show_msisdn:
|
|
# only support the MSISDN-only flow if we don't require email 3PIDs
|
|
if not require_email:
|
|
flows.extend([[LoginType.RECAPTCHA, LoginType.MSISDN]])
|
|
# always let users provide both MSISDN & email
|
|
flows.extend(
|
|
[[LoginType.RECAPTCHA, LoginType.MSISDN, LoginType.EMAIL_IDENTITY]]
|
|
)
|
|
else:
|
|
# only support 3PIDless registration if no 3PIDs are required
|
|
if not require_email and not require_msisdn:
|
|
flows.extend([[LoginType.DUMMY]])
|
|
# only support the email-only flow if we don't require MSISDN 3PIDs
|
|
if not require_msisdn:
|
|
flows.extend([[LoginType.EMAIL_IDENTITY]])
|
|
|
|
if show_msisdn:
|
|
# only support the MSISDN-only flow if we don't require email 3PIDs
|
|
if not require_email or require_msisdn:
|
|
flows.extend([[LoginType.MSISDN]])
|
|
# always let users provide both MSISDN & email
|
|
flows.extend([[LoginType.MSISDN, LoginType.EMAIL_IDENTITY]])
|
|
|
|
# Append m.login.terms to all flows if we're requiring consent
|
|
if self.hs.config.user_consent_at_registration:
|
|
new_flows = []
|
|
for flow in flows:
|
|
inserted = False
|
|
# m.login.terms should go near the end but before msisdn or email auth
|
|
for i, stage in enumerate(flow):
|
|
if stage == LoginType.EMAIL_IDENTITY or stage == LoginType.MSISDN:
|
|
flow.insert(i, LoginType.TERMS)
|
|
inserted = True
|
|
break
|
|
if not inserted:
|
|
flow.append(LoginType.TERMS)
|
|
flows.extend(new_flows)
|
|
|
|
auth_result, params, session_id = yield self.auth_handler.check_auth(
|
|
flows, body, self.hs.get_ip_from_request(request)
|
|
)
|
|
|
|
# Check that we're not trying to register a denied 3pid.
|
|
#
|
|
# the user-facing checks will probably already have happened in
|
|
# /register/email/requestToken when we requested a 3pid, but that's not
|
|
# guaranteed.
|
|
|
|
if auth_result:
|
|
for login_type in [LoginType.EMAIL_IDENTITY, LoginType.MSISDN]:
|
|
if login_type in auth_result:
|
|
medium = auth_result[login_type]["medium"]
|
|
address = auth_result[login_type]["address"]
|
|
|
|
if not check_3pid_allowed(self.hs, medium, address):
|
|
raise SynapseError(
|
|
403,
|
|
"Third party identifiers (email/phone numbers)"
|
|
+ " are not authorized on this server",
|
|
Codes.THREEPID_DENIED,
|
|
)
|
|
|
|
if registered_user_id is not None:
|
|
logger.info(
|
|
"Already registered user ID %r for this session", registered_user_id
|
|
)
|
|
# don't re-register the threepids
|
|
registered = False
|
|
else:
|
|
# NB: This may be from the auth handler and NOT from the POST
|
|
assert_params_in_dict(params, ["password"])
|
|
|
|
desired_username = params.get("username", None)
|
|
guest_access_token = params.get("guest_access_token", None)
|
|
new_password = params.get("password", None)
|
|
|
|
if desired_username is not None:
|
|
desired_username = desired_username.lower()
|
|
|
|
threepid = None
|
|
if auth_result:
|
|
threepid = auth_result.get(LoginType.EMAIL_IDENTITY)
|
|
|
|
# Also check that we're not trying to register a 3pid that's already
|
|
# been registered.
|
|
#
|
|
# This has probably happened in /register/email/requestToken as well,
|
|
# but if a user hits this endpoint twice then clicks on each link from
|
|
# the two activation emails, they would register the same 3pid twice.
|
|
for login_type in [LoginType.EMAIL_IDENTITY, LoginType.MSISDN]:
|
|
if login_type in auth_result:
|
|
medium = auth_result[login_type]["medium"]
|
|
address = auth_result[login_type]["address"]
|
|
|
|
existing_user_id = yield self.store.get_user_id_by_threepid(
|
|
medium, address
|
|
)
|
|
|
|
if existing_user_id is not None:
|
|
raise SynapseError(
|
|
400,
|
|
"%s is already in use" % medium,
|
|
Codes.THREEPID_IN_USE,
|
|
)
|
|
|
|
registered_user_id = yield self.registration_handler.register_user(
|
|
localpart=desired_username,
|
|
password=new_password,
|
|
guest_access_token=guest_access_token,
|
|
threepid=threepid,
|
|
address=client_addr,
|
|
)
|
|
# Necessary due to auth checks prior to the threepid being
|
|
# written to the db
|
|
if threepid:
|
|
if is_threepid_reserved(
|
|
self.hs.config.mau_limits_reserved_threepids, threepid
|
|
):
|
|
yield self.store.upsert_monthly_active_user(registered_user_id)
|
|
|
|
# remember that we've now registered that user account, and with
|
|
# what user ID (since the user may not have specified)
|
|
self.auth_handler.set_session_data(
|
|
session_id, "registered_user_id", registered_user_id
|
|
)
|
|
|
|
registered = True
|
|
|
|
return_dict = yield self._create_registration_details(
|
|
registered_user_id, params
|
|
)
|
|
|
|
if registered:
|
|
yield self.registration_handler.post_registration_actions(
|
|
user_id=registered_user_id,
|
|
auth_result=auth_result,
|
|
access_token=return_dict.get("access_token"),
|
|
)
|
|
|
|
return 200, return_dict
|
|
|
|
def on_OPTIONS(self, _):
|
|
return 200, {}
|
|
|
|
@defer.inlineCallbacks
|
|
def _do_appservice_registration(self, username, as_token, body):
|
|
user_id = yield self.registration_handler.appservice_register(
|
|
username, as_token
|
|
)
|
|
return (yield self._create_registration_details(user_id, body))
|
|
|
|
@defer.inlineCallbacks
|
|
def _create_registration_details(self, user_id, params):
|
|
"""Complete registration of newly-registered user
|
|
|
|
Allocates device_id if one was not given; also creates access_token.
|
|
|
|
Args:
|
|
(str) user_id: full canonical @user:id
|
|
(object) params: registration parameters, from which we pull
|
|
device_id, initial_device_name and inhibit_login
|
|
Returns:
|
|
defer.Deferred: (object) dictionary for response from /register
|
|
"""
|
|
result = {"user_id": user_id, "home_server": self.hs.hostname}
|
|
if not params.get("inhibit_login", False):
|
|
device_id = params.get("device_id")
|
|
initial_display_name = params.get("initial_device_display_name")
|
|
device_id, access_token = yield self.registration_handler.register_device(
|
|
user_id, device_id, initial_display_name, is_guest=False
|
|
)
|
|
|
|
result.update({"access_token": access_token, "device_id": device_id})
|
|
return result
|
|
|
|
@defer.inlineCallbacks
|
|
def _do_guest_registration(self, params, address=None):
|
|
if not self.hs.config.allow_guest_access:
|
|
raise SynapseError(403, "Guest access is disabled")
|
|
user_id = yield self.registration_handler.register_user(
|
|
make_guest=True, address=address
|
|
)
|
|
|
|
# we don't allow guests to specify their own device_id, because
|
|
# we have nowhere to store it.
|
|
device_id = synapse.api.auth.GUEST_DEVICE_ID
|
|
initial_display_name = params.get("initial_device_display_name")
|
|
device_id, access_token = yield self.registration_handler.register_device(
|
|
user_id, device_id, initial_display_name, is_guest=True
|
|
)
|
|
|
|
return (
|
|
200,
|
|
{
|
|
"user_id": user_id,
|
|
"device_id": device_id,
|
|
"access_token": access_token,
|
|
"home_server": self.hs.hostname,
|
|
},
|
|
)
|
|
|
|
|
|
def register_servlets(hs, http_server):
|
|
EmailRegisterRequestTokenRestServlet(hs).register(http_server)
|
|
MsisdnRegisterRequestTokenRestServlet(hs).register(http_server)
|
|
UsernameAvailabilityRestServlet(hs).register(http_server)
|
|
RegistrationSubmitTokenServlet(hs).register(http_server)
|
|
RegisterRestServlet(hs).register(http_server)
|