diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py
index 3767a809a4..d4b1ee1e8c 100644
--- a/synapse/rest/client/v2_alpha/account.py
+++ b/synapse/rest/client/v2_alpha/account.py
@@ -1,7 +1,7 @@
# -*- coding: utf-8 -*-
# Copyright 2015, 2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
-# Copyright 2018 New Vector Ltd
+# Copyright 2018, 2019 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.
@@ -15,7 +15,15 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
+import re
from http import HTTPStatus
+from typing import TYPE_CHECKING
+from urllib.parse import urlparse
+
+if TYPE_CHECKING:
+ from synapse.app.homeserver import HomeServer
+
+from twisted.internet import defer
from synapse.api.constants import LoginType
from synapse.api.errors import Codes, SynapseError, ThreepidValidationError
@@ -28,6 +36,7 @@ from synapse.http.servlet import (
parse_string,
)
from synapse.push.mailer import Mailer, load_jinja2_templates
+from synapse.types import UserID
from synapse.util.msisdn import phone_number_to_msisdn
from synapse.util.stringutils import assert_valid_client_secret, random_string
from synapse.util.threepids import canonicalise_email, check_3pid_allowed
@@ -98,10 +107,14 @@ class EmailPasswordRequestTokenRestServlet(RestServlet):
if not check_3pid_allowed(self.hs, "email", email):
raise SynapseError(
403,
- "Your email domain is not authorized on this server",
+ "Your email is not authorized on this server",
Codes.THREEPID_DENIED,
)
+ if next_link:
+ # Raise if the provided next_link value isn't valid
+ assert_valid_next_link(self.hs, next_link)
+
# The email will be sent to the stored address.
# This avoids a potential account hijack by requesting a password reset to
# an email address which is controlled by the attacker but which, after
@@ -232,6 +245,7 @@ class PasswordRestServlet(RestServlet):
self.datastore = self.hs.get_datastore()
self.password_policy_handler = hs.get_password_policy_handler()
self._set_password_handler = hs.get_set_password_handler()
+ self.http_client = hs.get_simple_http_client()
@interactive_auth_handler
async def on_POST(self, request):
@@ -263,13 +277,17 @@ class PasswordRestServlet(RestServlet):
if self.auth.has_access_token(request):
requester = await self.auth.get_user_by_req(request)
- params = await self.auth_handler.validate_user_via_ui_auth(
- requester,
- request,
- body,
- self.hs.get_ip_from_request(request),
- "modify your account password",
- )
+ # blindly trust ASes without UI-authing them
+ if requester.app_service:
+ params = body
+ else:
+ params = await self.auth_handler.validate_user_via_ui_auth(
+ requester,
+ request,
+ body,
+ self.hs.get_ip_from_request(request),
+ "modify your account password",
+ )
user_id = requester.user.to_string()
else:
requester = None
@@ -312,11 +330,29 @@ class PasswordRestServlet(RestServlet):
user_id, new_password_hash, logout_devices, requester
)
+ if self.hs.config.shadow_server:
+ shadow_user = UserID(
+ requester.user.localpart, self.hs.config.shadow_server.get("hs")
+ )
+ self.shadow_password(params, shadow_user.to_string())
+
return 200, {}
def on_OPTIONS(self, _):
return 200, {}
+ @defer.inlineCallbacks
+ def shadow_password(self, body, user_id):
+ # TODO: retries
+ shadow_hs_url = self.hs.config.shadow_server.get("hs_url")
+ as_token = self.hs.config.shadow_server.get("as_token")
+
+ yield self.http_client.post_json_get_json(
+ "%s/_matrix/client/r0/account/password?access_token=%s&user_id=%s"
+ % (shadow_hs_url, as_token, user_id),
+ body,
+ )
+
class DeactivateAccountRestServlet(RestServlet):
PATTERNS = client_patterns("/account/deactivate$")
@@ -420,13 +456,17 @@ class EmailThreepidRequestTokenRestServlet(RestServlet):
send_attempt = body["send_attempt"]
next_link = body.get("next_link") # Optional param
- if not check_3pid_allowed(self.hs, "email", email):
+ if not (await check_3pid_allowed(self.hs, "email", email)):
raise SynapseError(
403,
- "Your email domain is not authorized on this server",
+ "Your email is not authorized on this server",
Codes.THREEPID_DENIED,
)
+ if next_link:
+ # Raise if the provided next_link value isn't valid
+ assert_valid_next_link(self.hs, next_link)
+
existing_user_id = await self.store.get_user_id_by_threepid("email", email)
if existing_user_id is not None:
@@ -488,13 +528,17 @@ class MsisdnThreepidRequestTokenRestServlet(RestServlet):
msisdn = phone_number_to_msisdn(country, phone_number)
- if not check_3pid_allowed(self.hs, "msisdn", msisdn):
+ if not (await check_3pid_allowed(self.hs, "msisdn", msisdn)):
raise SynapseError(
403,
"Account phone numbers are not authorized on this server",
Codes.THREEPID_DENIED,
)
+ if next_link:
+ # Raise if the provided next_link value isn't valid
+ assert_valid_next_link(self.hs, next_link)
+
existing_user_id = await self.store.get_user_id_by_threepid("msisdn", msisdn)
if existing_user_id is not None:
@@ -579,15 +623,10 @@ class AddThreepidEmailSubmitTokenServlet(RestServlet):
# Perform a 302 redirect if next_link is set
if next_link:
- if next_link.startswith("file:///"):
- logger.warning(
- "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
+ 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
@@ -653,7 +692,8 @@ class ThreepidRestServlet(RestServlet):
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()
+ self.datastore = hs.get_datastore()
+ self.http_client = hs.get_simple_http_client()
async def on_GET(self, request):
requester = await self.auth.get_user_by_req(request)
@@ -672,6 +712,29 @@ class ThreepidRestServlet(RestServlet):
user_id = requester.user.to_string()
body = parse_json_object_from_request(request)
+ # skip validation if this is a shadow 3PID from an AS
+ if requester.app_service:
+ # XXX: ASes pass in a validated threepid directly to bypass the IS.
+ # This makes the API entirely change shape when we have an AS token;
+ # it really should be an entirely separate API - perhaps
+ # /account/3pid/replicate or something.
+ threepid = body.get("threepid")
+
+ await self.auth_handler.add_threepid(
+ user_id,
+ threepid["medium"],
+ threepid["address"],
+ threepid["validated_at"],
+ )
+
+ if self.hs.config.shadow_server:
+ shadow_user = UserID(
+ requester.user.localpart, self.hs.config.shadow_server.get("hs")
+ )
+ self.shadow_3pid({"threepid": threepid}, shadow_user.to_string())
+
+ return 200, {}
+
threepid_creds = body.get("threePidCreds") or body.get("three_pid_creds")
if threepid_creds is None:
raise SynapseError(
@@ -693,12 +756,36 @@ class ThreepidRestServlet(RestServlet):
validation_session["address"],
validation_session["validated_at"],
)
+
+ if self.hs.config.shadow_server:
+ shadow_user = UserID(
+ requester.user.localpart, self.hs.config.shadow_server.get("hs")
+ )
+ threepid = {
+ "medium": validation_session["medium"],
+ "address": validation_session["address"],
+ "validated_at": validation_session["validated_at"],
+ }
+ self.shadow_3pid({"threepid": threepid}, shadow_user.to_string())
+
return 200, {}
raise SynapseError(
400, "No validated 3pid session found", Codes.THREEPID_AUTH_FAILED
)
+ @defer.inlineCallbacks
+ def shadow_3pid(self, body, user_id):
+ # TODO: retries
+ shadow_hs_url = self.hs.config.shadow_server.get("hs_url")
+ as_token = self.hs.config.shadow_server.get("as_token")
+
+ yield self.http_client.post_json_get_json(
+ "%s/_matrix/client/r0/account/3pid?access_token=%s&user_id=%s"
+ % (shadow_hs_url, as_token, user_id),
+ body,
+ )
+
class ThreepidAddRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/add$")
@@ -709,6 +796,7 @@ class ThreepidAddRestServlet(RestServlet):
self.identity_handler = hs.get_handlers().identity_handler
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
+ self.http_client = hs.get_simple_http_client()
@interactive_auth_handler
async def on_POST(self, request):
@@ -744,12 +832,34 @@ class ThreepidAddRestServlet(RestServlet):
validation_session["address"],
validation_session["validated_at"],
)
+ if self.hs.config.shadow_server:
+ shadow_user = UserID(
+ requester.user.localpart, self.hs.config.shadow_server.get("hs")
+ )
+ threepid = {
+ "medium": validation_session["medium"],
+ "address": validation_session["address"],
+ "validated_at": validation_session["validated_at"],
+ }
+ self.shadow_3pid({"threepid": threepid}, shadow_user.to_string())
return 200, {}
raise SynapseError(
400, "No validated 3pid session found", Codes.THREEPID_AUTH_FAILED
)
+ @defer.inlineCallbacks
+ def shadow_3pid(self, body, user_id):
+ # TODO: retries
+ shadow_hs_url = self.hs.config.shadow_server.get("hs_url")
+ as_token = self.hs.config.shadow_server.get("as_token")
+
+ yield self.http_client.post_json_get_json(
+ "%s/_matrix/client/r0/account/3pid?access_token=%s&user_id=%s"
+ % (shadow_hs_url, as_token, user_id),
+ body,
+ )
+
class ThreepidBindRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/bind$")
@@ -819,6 +929,7 @@ class ThreepidDeleteRestServlet(RestServlet):
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
+ self.http_client = hs.get_simple_http_client()
async def on_POST(self, request):
if not self.hs.config.enable_3pid_changes:
@@ -843,6 +954,12 @@ class ThreepidDeleteRestServlet(RestServlet):
logger.exception("Failed to remove threepid")
raise SynapseError(500, "Failed to remove threepid")
+ if self.hs.config.shadow_server:
+ shadow_user = UserID(
+ requester.user.localpart, self.hs.config.shadow_server.get("hs")
+ )
+ self.shadow_3pid_delete(body, shadow_user.to_string())
+
if ret:
id_server_unbind_result = "success"
else:
@@ -850,6 +967,116 @@ class ThreepidDeleteRestServlet(RestServlet):
return 200, {"id_server_unbind_result": id_server_unbind_result}
+ @defer.inlineCallbacks
+ def shadow_3pid_delete(self, body, user_id):
+ # TODO: retries
+ shadow_hs_url = self.hs.config.shadow_server.get("hs_url")
+ as_token = self.hs.config.shadow_server.get("as_token")
+
+ yield self.http_client.post_json_get_json(
+ "%s/_matrix/client/r0/account/3pid/delete?access_token=%s&user_id=%s"
+ % (shadow_hs_url, as_token, user_id),
+ body,
+ )
+
+
+class ThreepidLookupRestServlet(RestServlet):
+ PATTERNS = [re.compile("^/_matrix/client/unstable/account/3pid/lookup$")]
+
+ def __init__(self, hs):
+ super(ThreepidLookupRestServlet, self).__init__()
+ self.auth = hs.get_auth()
+ self.identity_handler = hs.get_handlers().identity_handler
+
+ @defer.inlineCallbacks
+ def on_GET(self, request):
+ """Proxy a /_matrix/identity/api/v1/lookup request to an identity
+ server
+ """
+ yield self.auth.get_user_by_req(request)
+
+ # Verify query parameters
+ query_params = request.args
+ assert_params_in_dict(query_params, [b"medium", b"address", b"id_server"])
+
+ # Retrieve needed information from query parameters
+ medium = parse_string(request, "medium")
+ address = parse_string(request, "address")
+ id_server = parse_string(request, "id_server")
+
+ # Proxy the request to the identity server. lookup_3pid handles checking
+ # if the lookup is allowed so we don't need to do it here.
+ ret = yield self.identity_handler.proxy_lookup_3pid(id_server, medium, address)
+
+ defer.returnValue((200, ret))
+
+
+class ThreepidBulkLookupRestServlet(RestServlet):
+ PATTERNS = [re.compile("^/_matrix/client/unstable/account/3pid/bulk_lookup$")]
+
+ def __init__(self, hs):
+ super(ThreepidBulkLookupRestServlet, self).__init__()
+ self.auth = hs.get_auth()
+ self.identity_handler = hs.get_handlers().identity_handler
+
+ @defer.inlineCallbacks
+ def on_POST(self, request):
+ """Proxy a /_matrix/identity/api/v1/bulk_lookup request to an identity
+ server
+ """
+ yield self.auth.get_user_by_req(request)
+
+ body = parse_json_object_from_request(request)
+
+ assert_params_in_dict(body, ["threepids", "id_server"])
+
+ # Proxy the request to the identity server. lookup_3pid handles checking
+ # if the lookup is allowed so we don't need to do it here.
+ ret = yield self.identity_handler.proxy_bulk_lookup_3pid(
+ body["id_server"], body["threepids"]
+ )
+
+ defer.returnValue((200, ret))
+
+
+def assert_valid_next_link(hs: "HomeServer", next_link: str):
+ """
+ Raises a SynapseError if a given next_link value is invalid
+
+ next_link is valid if the scheme is http(s) and the next_link.domain_whitelist config
+ option is either empty or contains a domain that matches the one in the given next_link
+
+ Args:
+ hs: The homeserver object
+ next_link: The next_link value given by the client
+
+ Raises:
+ SynapseError: If the next_link is invalid
+ """
+ valid = True
+
+ # Parse the contents of the URL
+ next_link_parsed = urlparse(next_link)
+
+ # Scheme must not point to the local drive
+ if next_link_parsed.scheme == "file":
+ valid = False
+
+ # If the domain whitelist is set, the domain must be in it
+ if (
+ valid
+ and hs.config.next_link_domain_whitelist is not None
+ and next_link_parsed.hostname not in hs.config.next_link_domain_whitelist
+ ):
+ valid = False
+
+ if not valid:
+ raise SynapseError(
+ 400,
+ "'next_link' domain not included in whitelist, or not http(s)",
+ errcode=Codes.INVALID_PARAM,
+ )
+
class WhoamiRestServlet(RestServlet):
PATTERNS = client_patterns("/account/whoami$")
@@ -878,4 +1105,6 @@ def register_servlets(hs, http_server):
ThreepidBindRestServlet(hs).register(http_server)
ThreepidUnbindRestServlet(hs).register(http_server)
ThreepidDeleteRestServlet(hs).register(http_server)
+ ThreepidLookupRestServlet(hs).register(http_server)
+ ThreepidBulkLookupRestServlet(hs).register(http_server)
WhoamiRestServlet(hs).register(http_server)
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