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authorMatthew Hodgson <matthew@matrix.org>2018-11-03 12:14:24 +0000
committerMatthew Hodgson <matthew@matrix.org>2018-11-03 12:14:24 +0000
commit6e7488ce1166ffb1f70777b4db2e9008f3303a04 (patch)
tree4cd62ccc22a7eb9630b875e18e05cf4017f62218 /synapse/rest/client/v2_alpha
parentMerge pull request #4047 from matrix-org/michaelkaye/dinsic_allow_user_direct... (diff)
parentMerge branch 'release-v0.33.8' (diff)
downloadsynapse-6e7488ce1166ffb1f70777b4db2e9008f3303a04.tar.xz
merge master into dinsic, again...
Diffstat (limited to 'synapse/rest/client/v2_alpha')
-rw-r--r--synapse/rest/client/v2_alpha/account.py16
-rw-r--r--synapse/rest/client/v2_alpha/auth.py2
-rw-r--r--synapse/rest/client/v2_alpha/register.py22
-rw-r--r--synapse/rest/client/v2_alpha/room_keys.py372
-rw-r--r--synapse/rest/client/v2_alpha/sync.py53
-rw-r--r--synapse/rest/client/v2_alpha/thirdparty.py4
6 files changed, 445 insertions, 24 deletions
diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py

index dad0433ba1..ea84729915 100644 --- a/synapse/rest/client/v2_alpha/account.py +++ b/synapse/rest/client/v2_alpha/account.py
@@ -53,7 +53,9 @@ class EmailPasswordRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "email", body['email'])): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Your email domain is not authorized on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.hs.get_datastore().get_user_id_by_threepid( @@ -89,7 +91,9 @@ class MsisdnPasswordRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "msisdn", msisdn)): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Account phone numbers are not authorized on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.datastore.get_user_id_by_threepid( @@ -241,7 +245,9 @@ class EmailThreepidRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "email", body['email'])): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Your email domain is not authorized on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.datastore.get_user_id_by_threepid( @@ -276,7 +282,9 @@ class MsisdnThreepidRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "msisdn", msisdn)): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Account phone numbers are not authorized on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.datastore.get_user_id_by_threepid( diff --git a/synapse/rest/client/v2_alpha/auth.py b/synapse/rest/client/v2_alpha/auth.py
index bd8b5f4afa..693b303881 100644 --- a/synapse/rest/client/v2_alpha/auth.py +++ b/synapse/rest/client/v2_alpha/auth.py
@@ -99,7 +99,7 @@ class AuthRestServlet(RestServlet): cannot be handled in the normal flow (with requests to the same endpoint). Current use is for web fallback auth. """ - PATTERNS = client_v2_patterns("/auth/(?P<stagetype>[\w\.]*)/fallback/web") + PATTERNS = client_v2_patterns(r"/auth/(?P<stagetype>[\w\.]*)/fallback/web") def __init__(self, hs): super(AuthRestServlet, self).__init__() diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index 7bbebd54ab..c7c8287882 100644 --- a/synapse/rest/client/v2_alpha/register.py +++ b/synapse/rest/client/v2_alpha/register.py
@@ -28,6 +28,7 @@ import synapse import synapse.types from synapse.api.constants import LoginType from synapse.api.errors import Codes, SynapseError, UnrecognizedRequestError +from synapse.config.server import is_threepid_reserved from synapse.http.servlet import ( RestServlet, assert_params_in_dict, @@ -76,7 +77,9 @@ class EmailRegisterRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "email", body['email'])): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Your email domain is not authorized to register on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.hs.get_datastore().get_user_id_by_threepid( @@ -116,7 +119,9 @@ class MsisdnRegisterRequestTokenRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, "msisdn", msisdn)): raise SynapseError( - 403, "Third party identifier is not allowed", Codes.THREEPID_DENIED, + 403, + "Phone numbers are not authorized to register on this server", + Codes.THREEPID_DENIED, ) existingUid = yield self.hs.get_datastore().get_user_id_by_threepid( @@ -369,7 +374,9 @@ class RegisterRestServlet(RestServlet): if not (yield check_3pid_allowed(self.hs, medium, address)): raise SynapseError( - 403, "Third party identifier is not allowed", + 403, + "Third party identifiers (email/phone numbers)" + + " are not authorized on this server", Codes.THREEPID_DENIED, ) @@ -475,13 +482,22 @@ class RegisterRestServlet(RestServlet): if desired_username is not None: desired_username = desired_username.lower() + threepid = None + if auth_result: + threepid = auth_result.get(LoginType.EMAIL_IDENTITY) + (registered_user_id, _) = yield self.registration_handler.register( localpart=desired_username, password=new_password, guest_access_token=guest_access_token, generate_token=False, display_name=desired_display_name, + threepid=threepid, ) + # Necessary due to auth checks prior to the threepid being + # written to the db + if is_threepid_reserved(self.hs.config, 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) diff --git a/synapse/rest/client/v2_alpha/room_keys.py b/synapse/rest/client/v2_alpha/room_keys.py new file mode 100644
index 0000000000..45b5817d8b --- /dev/null +++ b/synapse/rest/client/v2_alpha/room_keys.py
@@ -0,0 +1,372 @@ +# -*- coding: utf-8 -*- +# Copyright 2017, 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 twisted.internet import defer + +from synapse.api.errors import Codes, SynapseError +from synapse.http.servlet import ( + RestServlet, + parse_json_object_from_request, + parse_string, +) + +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class RoomKeysServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/keys(/(?P<room_id>[^/]+))?(/(?P<session_id>[^/]+))?$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_PUT(self, request, room_id, session_id): + """ + Uploads one or more encrypted E2E room keys for backup purposes. + room_id: the ID of the room the keys are for (optional) + session_id: the ID for the E2E room keys for the room (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /room_keys/version API. + + Each session has: + * first_message_index: a numeric index indicating the oldest message + encrypted by this session. + * forwarded_count: how many times the uploading client claims this key + has been shared (forwarded) + * is_verified: whether the client that uploaded the keys claims they + were sent by a device which they've verified + * session_data: base64-encrypted data describing the session. + + Returns 200 OK on success with body {} + Returns 403 Forbidden if the version in question is not the most recently + created version (i.e. if this is an old client trying to write to a stale backup) + Returns 404 Not Found if the version in question doesn't exist + + The API is designed to be otherwise agnostic to the room_key encryption + algorithm being used. Sessions are merged with existing ones in the + backup using the heuristics: + * is_verified sessions always win over unverified sessions + * older first_message_index always win over newer sessions + * lower forwarded_count always wins over higher forwarded_count + + We trust the clients not to lie and corrupt their own backups. + It also means that if your access_token is stolen, the attacker could + delete your backup. + + POST /room_keys/keys/!abc:matrix.org/c0ff33?version=1 HTTP/1.1 + Content-Type: application/json + + { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + + Or... + + POST /room_keys/keys/!abc:matrix.org?version=1 HTTP/1.1 + Content-Type: application/json + + { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + + Or... + + POST /room_keys/keys?version=1 HTTP/1.1 + Content-Type: application/json + + { + "rooms": { + "!abc:matrix.org": { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + } + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + body = parse_json_object_from_request(request) + version = parse_string(request, "version") + + if session_id: + body = { + "sessions": { + session_id: body + } + } + + if room_id: + body = { + "rooms": { + room_id: body + } + } + + yield self.e2e_room_keys_handler.upload_room_keys( + user_id, version, body + ) + defer.returnValue((200, {})) + + @defer.inlineCallbacks + def on_GET(self, request, room_id, session_id): + """ + Retrieves one or more encrypted E2E room keys for backup purposes. + Symmetric with the PUT version of the API. + + room_id: the ID of the room to retrieve the keys for (optional) + session_id: the ID for the E2E room keys to retrieve the keys for (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /change_secret API. + + Returns as follows: + + GET /room_keys/keys/!abc:matrix.org/c0ff33?version=1 HTTP/1.1 + { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + + Or... + + GET /room_keys/keys/!abc:matrix.org?version=1 HTTP/1.1 + { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + + Or... + + GET /room_keys/keys?version=1 HTTP/1.1 + { + "rooms": { + "!abc:matrix.org": { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + } + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + version = parse_string(request, "version") + + room_keys = yield self.e2e_room_keys_handler.get_room_keys( + user_id, version, room_id, session_id + ) + + if session_id: + room_keys = room_keys['rooms'][room_id]['sessions'][session_id] + elif room_id: + room_keys = room_keys['rooms'][room_id] + + defer.returnValue((200, room_keys)) + + @defer.inlineCallbacks + def on_DELETE(self, request, room_id, session_id): + """ + Deletes one or more encrypted E2E room keys for a user for backup purposes. + + DELETE /room_keys/keys/!abc:matrix.org/c0ff33?version=1 + HTTP/1.1 200 OK + {} + + room_id: the ID of the room whose keys to delete (optional) + session_id: the ID for the E2E session to delete (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /change_secret API. + """ + + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + version = parse_string(request, "version") + + yield self.e2e_room_keys_handler.delete_room_keys( + user_id, version, room_id, session_id + ) + defer.returnValue((200, {})) + + +class RoomKeysNewVersionServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/version$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysNewVersionServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_POST(self, request): + """ + Create a new backup version for this user's room_keys with the given + info. The version is allocated by the server and returned to the user + in the response. This API is intended to be used whenever the user + changes the encryption key for their backups, ensuring that backups + encrypted with different keys don't collide. + + It takes out an exclusive lock on this user's room_key backups, to ensure + clients only upload to the current backup. + + The algorithm passed in the version info is a reverse-DNS namespaced + identifier to describe the format of the encrypted backupped keys. + + The auth_data is { user_id: "user_id", nonce: <random string> } + encrypted using the algorithm and current encryption key described above. + + POST /room_keys/version + Content-Type: application/json + { + "algorithm": "m.megolm_backup.v1", + "auth_data": "dGhpcyBzaG91bGQgYWN0dWFsbHkgYmUgZW5jcnlwdGVkIGpzb24K" + } + + HTTP/1.1 200 OK + Content-Type: application/json + { + "version": 12345 + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + info = parse_json_object_from_request(request) + + new_version = yield self.e2e_room_keys_handler.create_version( + user_id, info + ) + defer.returnValue((200, {"version": new_version})) + + # we deliberately don't have a PUT /version, as these things really should + # be immutable to avoid people footgunning + + +class RoomKeysVersionServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/version(/(?P<version>[^/]+))?$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysVersionServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_GET(self, request, version): + """ + Retrieve the version information about a given version of the user's + room_keys backup. If the version part is missing, returns info about the + most current backup version (if any) + + It takes out an exclusive lock on this user's room_key backups, to ensure + clients only upload to the current backup. + + Returns 404 if the given version does not exist. + + GET /room_keys/version/12345 HTTP/1.1 + { + "version": "12345", + "algorithm": "m.megolm_backup.v1", + "auth_data": "dGhpcyBzaG91bGQgYWN0dWFsbHkgYmUgZW5jcnlwdGVkIGpzb24K" + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + + try: + info = yield self.e2e_room_keys_handler.get_version_info( + user_id, version + ) + except SynapseError as e: + if e.code == 404: + raise SynapseError(404, "No backup found", Codes.NOT_FOUND) + defer.returnValue((200, info)) + + @defer.inlineCallbacks + def on_DELETE(self, request, version): + """ + Delete the information about a given version of the user's + room_keys backup. If the version part is missing, deletes the most + current backup version (if any). Doesn't delete the actual room data. + + DELETE /room_keys/version/12345 HTTP/1.1 + HTTP/1.1 200 OK + {} + """ + if version is None: + raise SynapseError(400, "No version specified to delete", Codes.NOT_FOUND) + + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + + yield self.e2e_room_keys_handler.delete_version( + user_id, version + ) + defer.returnValue((200, {})) + + +def register_servlets(hs, http_server): + RoomKeysServlet(hs).register(http_server) + RoomKeysVersionServlet(hs).register(http_server) + RoomKeysNewVersionServlet(hs).register(http_server) diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 1275baa1ba..0251146722 100644 --- a/synapse/rest/client/v2_alpha/sync.py +++ b/synapse/rest/client/v2_alpha/sync.py
@@ -25,6 +25,7 @@ from synapse.api.errors import SynapseError from synapse.api.filtering import DEFAULT_FILTER_COLLECTION, FilterCollection from synapse.events.utils import ( format_event_for_client_v2_without_room_id, + format_event_raw, serialize_event, ) from synapse.handlers.presence import format_user_presence_state @@ -88,7 +89,7 @@ class SyncRestServlet(RestServlet): @defer.inlineCallbacks def on_GET(self, request): - if "from" in request.args: + if b"from" in request.args: # /events used to use 'from', but /sync uses 'since'. # Lets be helpful and whine if we see a 'from'. raise SynapseError( @@ -175,17 +176,28 @@ class SyncRestServlet(RestServlet): @staticmethod def encode_response(time_now, sync_result, access_token_id, filter): + if filter.event_format == 'client': + event_formatter = format_event_for_client_v2_without_room_id + elif filter.event_format == 'federation': + event_formatter = format_event_raw + else: + raise Exception("Unknown event format %s" % (filter.event_format, )) + joined = SyncRestServlet.encode_joined( - sync_result.joined, time_now, access_token_id, filter.event_fields + sync_result.joined, time_now, access_token_id, + filter.event_fields, + event_formatter, ) invited = SyncRestServlet.encode_invited( sync_result.invited, time_now, access_token_id, + event_formatter, ) archived = SyncRestServlet.encode_archived( sync_result.archived, time_now, access_token_id, filter.event_fields, + event_formatter, ) return { @@ -228,7 +240,7 @@ class SyncRestServlet(RestServlet): } @staticmethod - def encode_joined(rooms, time_now, token_id, event_fields): + def encode_joined(rooms, time_now, token_id, event_fields, event_formatter): """ Encode the joined rooms in a sync result @@ -240,7 +252,9 @@ class SyncRestServlet(RestServlet): token_id(int): ID of the user's auth token - used for namespacing of transaction IDs event_fields(list<str>): List of event fields to include. If empty, - all fields will be returned. + all fields will be returned. + event_formatter (func[dict]): function to convert from federation format + to client format Returns: dict[str, dict[str, object]]: the joined rooms list, in our response format @@ -248,13 +262,14 @@ class SyncRestServlet(RestServlet): joined = {} for room in rooms: joined[room.room_id] = SyncRestServlet.encode_room( - room, time_now, token_id, only_fields=event_fields + room, time_now, token_id, joined=True, only_fields=event_fields, + event_formatter=event_formatter, ) return joined @staticmethod - def encode_invited(rooms, time_now, token_id): + def encode_invited(rooms, time_now, token_id, event_formatter): """ Encode the invited rooms in a sync result @@ -264,7 +279,9 @@ class SyncRestServlet(RestServlet): time_now(int): current time - used as a baseline for age calculations token_id(int): ID of the user's auth token - used for namespacing - of transaction IDs + of transaction IDs + event_formatter (func[dict]): function to convert from federation format + to client format Returns: dict[str, dict[str, object]]: the invited rooms list, in our @@ -274,7 +291,7 @@ class SyncRestServlet(RestServlet): for room in rooms: invite = serialize_event( room.invite, time_now, token_id=token_id, - event_format=format_event_for_client_v2_without_room_id, + event_format=event_formatter, is_invite=True, ) unsigned = dict(invite.get("unsigned", {})) @@ -288,7 +305,7 @@ class SyncRestServlet(RestServlet): return invited @staticmethod - def encode_archived(rooms, time_now, token_id, event_fields): + def encode_archived(rooms, time_now, token_id, event_fields, event_formatter): """ Encode the archived rooms in a sync result @@ -300,7 +317,9 @@ class SyncRestServlet(RestServlet): token_id(int): ID of the user's auth token - used for namespacing of transaction IDs event_fields(list<str>): List of event fields to include. If empty, - all fields will be returned. + all fields will be returned. + event_formatter (func[dict]): function to convert from federation format + to client format Returns: dict[str, dict[str, object]]: The invited rooms list, in our response format @@ -308,13 +327,18 @@ class SyncRestServlet(RestServlet): joined = {} for room in rooms: joined[room.room_id] = SyncRestServlet.encode_room( - room, time_now, token_id, joined=False, only_fields=event_fields + room, time_now, token_id, joined=False, + only_fields=event_fields, + event_formatter=event_formatter, ) return joined @staticmethod - def encode_room(room, time_now, token_id, joined=True, only_fields=None): + def encode_room( + room, time_now, token_id, joined, + only_fields, event_formatter, + ): """ Args: room (JoinedSyncResult|ArchivedSyncResult): sync result for a @@ -326,14 +350,15 @@ class SyncRestServlet(RestServlet): joined (bool): True if the user is joined to this room - will mean we handle ephemeral events only_fields(list<str>): Optional. The list of event fields to include. + event_formatter (func[dict]): function to convert from federation format + to client format Returns: dict[str, object]: the room, encoded in our response format """ def serialize(event): - # TODO(mjark): Respect formatting requirements in the filter. return serialize_event( event, time_now, token_id=token_id, - event_format=format_event_for_client_v2_without_room_id, + event_format=event_formatter, only_event_fields=only_fields, ) diff --git a/synapse/rest/client/v2_alpha/thirdparty.py b/synapse/rest/client/v2_alpha/thirdparty.py
index d9d379182e..b9b5d07677 100644 --- a/synapse/rest/client/v2_alpha/thirdparty.py +++ b/synapse/rest/client/v2_alpha/thirdparty.py
@@ -79,7 +79,7 @@ class ThirdPartyUserServlet(RestServlet): yield self.auth.get_user_by_req(request, allow_guest=True) fields = request.args - fields.pop("access_token", None) + fields.pop(b"access_token", None) results = yield self.appservice_handler.query_3pe( ThirdPartyEntityKind.USER, protocol, fields @@ -102,7 +102,7 @@ class ThirdPartyLocationServlet(RestServlet): yield self.auth.get_user_by_req(request, allow_guest=True) fields = request.args - fields.pop("access_token", None) + fields.pop(b"access_token", None) results = yield self.appservice_handler.query_3pe( ThirdPartyEntityKind.LOCATION, protocol, fields