document the API

This commit is contained in:
Matthew Hodgson 2017-12-05 23:06:43 +00:00 committed by Hubert Chathi
parent 6b8c07abc2
commit cf1e2000f6
1 changed files with 133 additions and 0 deletions

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@ -41,6 +41,79 @@ class RoomKeysServlet(RestServlet):
@defer.inlineCallbacks @defer.inlineCallbacks
def on_PUT(self, request, room_id, session_id): 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) requester = yield self.auth.get_user_by_req(request, allow_guest=False)
user_id = requester.user.to_string() user_id = requester.user.to_string()
body = parse_json_object_from_request(request) body = parse_json_object_from_request(request)
@ -67,6 +140,57 @@ class RoomKeysServlet(RestServlet):
@defer.inlineCallbacks @defer.inlineCallbacks
def on_GET(self, request, room_id, session_id): 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) requester = yield self.auth.get_user_by_req(request, allow_guest=False)
user_id = requester.user.to_string() user_id = requester.user.to_string()
version = request.args.get("version")[0] version = request.args.get("version")[0]
@ -78,6 +202,15 @@ class RoomKeysServlet(RestServlet):
@defer.inlineCallbacks @defer.inlineCallbacks
def on_DELETE(self, request, room_id, session_id): 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) requester = yield self.auth.get_user_by_req(request, allow_guest=False)
user_id = requester.user.to_string() user_id = requester.user.to_string()
version = request.args.get("version")[0] version = request.args.get("version")[0]