diff options
| -rw-r--r-- | synapse/rest/client/v2_alpha/room_keys.py | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/synapse/rest/client/v2_alpha/room_keys.py b/synapse/rest/client/v2_alpha/room_keys.py index 010aed98f9..be82eccb2b 100644 --- a/synapse/rest/client/v2_alpha/room_keys.py +++ b/synapse/rest/client/v2_alpha/room_keys.py @@ -41,6 +41,79 @@ class RoomKeysServlet(RestServlet): @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 /change_secret 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 {} + + 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. + + 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) @@ -67,6 +140,57 @@ class RoomKeysServlet(RestServlet): @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 = request.args.get("version")[0] @@ -78,6 +202,15 @@ class RoomKeysServlet(RestServlet): @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. + + 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 = request.args.get("version")[0] |