diff --git a/api/client-server/v1/voip.yaml b/api/client-server/v1/voip.yaml new file mode 100644 index 00000000..5fdf1ca7 --- /dev/null +++ b/api/client-server/v1/voip.yaml @@ -0,0 +1,68 @@ +swagger: '2.0' +info: + title: "Matrix Client-Server v1 Voice over IP API" + version: "1.0.0" +host: localhost:8008 +schemes: + - https + - http +basePath: /_matrix/client/api/v1 +consumes: + - application/json +produces: + - application/json +securityDefinitions: + accessToken: + type: apiKey + description: The user_id or application service access_token + name: access_token + in: query +paths: + "/turnServer": + get: + summary: Obtain TURN server credentials. + description: |- + This API provides credentials for the client to use when initiating + calls. + security: + - accessToken: [] + responses: + 200: + description: The TURN server credentials. + examples: + application/json: |- + { + "username":"1443779631:@user:example.com", + "password":"JlKfBy1QwLrO20385QyAtEyIv0=", + "uris":[ + "turn:turn.example.com:3478?transport=udp", + "turn:10.20.30.40:3478?transport=tcp", + "turns:10.20.30.40:443?transport=tcp" + ], + "ttl":86400 + } + schema: + type: object + properties: + username: + type: string + description: |- + The username to use. + password: + type: string + description: |- + The password to use. + uris: + type: array + items: + type: string + description: A list of TURN URIs + ttl: + type: integer + description: The time-to-live in seconds + required: ["username", "password", "uris", "ttl"] + 429: + description: This request was rate-limited. + schema: + "$ref": "definitions/error.yaml" + diff --git a/api/client-server/v2_alpha/receipts.yaml b/api/client-server/v2_alpha/receipts.yaml new file mode 100644 index 00000000..4ef435b0 --- /dev/null +++ b/api/client-server/v2_alpha/receipts.yaml @@ -0,0 +1,68 @@ +swagger: '2.0' +info: + title: "Matrix Client-Server v2 Receipts API" + version: "1.0.0" +host: localhost:8008 +schemes: + - https + - http +basePath: /_matrix/client/v2_alpha +consumes: + - application/json +produces: + - application/json +securityDefinitions: + accessToken: + type: apiKey + description: The user_id or application service access_token + name: access_token + in: query +paths: + "/rooms/{roomId}/receipt/{receiptType}/{eventId}": + post: + summary: Send a receipt for the given event ID. + description: |- + This API updates the marker for the given receipt type to the event ID + specified. + security: + - accessToken: [] + parameters: + - in: path + type: string + name: roomId + description: The room in which to send the event. + required: true + x-example: "!wefuh21ffskfuh345:example.com" + - in: path + type: string + name: receiptType + description: The type of receipt to send. + required: true + x-example: "m.read" + enum: ["m.read"] + - in: path + type: string + name: eventId + description: The event ID to acknowledge up to. + required: true + x-example: "$1924376522eioj:example.com" + - in: body + description: |- + Extra receipt information to attach to ``content`` if any. The + server will automatically set the ``ts`` field. + schema: + type: object + example: |- + {} + responses: + 200: + description: The receipt was sent. + examples: + application/json: |- + {} + schema: + type: object # empty json object + 429: + description: This request was rate-limited. + schema: + "$ref": "definitions/error.yaml" \ No newline at end of file diff --git a/event-schemas/examples/v1/m.receipt b/event-schemas/examples/v1/m.receipt index 83515317..bd0b726c 100644 --- a/event-schemas/examples/v1/m.receipt +++ b/event-schemas/examples/v1/m.receipt @@ -3,7 +3,7 @@ "room_id": "!KpjVgQyZpzBwvMBsnT:matrix.org", "content": { "$1435641916114394fHBLK:matrix.org": { - "read": { + "m.read": { "@rikj:jki.re": { "ts": 1436451550453 } diff --git a/event-schemas/schema/v1/m.receipt b/event-schemas/schema/v1/m.receipt index 0f365eed..d0f79ac4 100644 --- a/event-schemas/schema/v1/m.receipt +++ b/event-schemas/schema/v1/m.receipt @@ -5,26 +5,32 @@ "properties": { "content": { "type": "object", - "description": "The event ids which the receipts relate to.", "patternProperties": { "^\\$": { "type": "object", - "description": "The types of the receipts.", - "additionalProperties": { - "type": "object", - "description": "User ids of the receipts", - "patternProperties": { - "^@": { - "type": "object", - "properties": { - "ts": { - "type": "number", - "description": "The timestamp the receipt was sent at" + "x-pattern": "$EVENT_ID", + "title": "Receipts", + "description": "The mapping of event ID to a collection of receipts for this event ID. The event ID is the ID of the event being acknowledged and *not* an ID for the receipt itself.", + "properties": { + "m.read": { + "type": "object", + "title": "Users", + "description": "A collection of users who have sent ``m.read`` receipts for this event.", + "patternProperties": { + "^@": { + "type": "object", + "title": "Receipt", + "description": "The mapping of user ID to receipt. The user ID is the entity who sent this receipt.", + "x-pattern": "$USER_ID", + "properties": { + "ts": { + "type": "number", + "description": "The timestamp the receipt was sent at." + } } } } - }, - "additionalProperties": false + } } } }, diff --git a/specification/1-client_server_api.rst b/specification/1-client_server_api.rst index 7d8d57e4..db88bbd6 100644 --- a/specification/1-client_server_api.rst +++ b/specification/1-client_server_api.rst @@ -427,6 +427,8 @@ the complete dataset is provided in "chunk". Events ------ +.. _sect:events: + Overview ~~~~~~~~ diff --git a/specification/modules/receipts.rst b/specification/modules/receipts.rst index 9787682f..a8ad3cd3 100644 --- a/specification/modules/receipts.rst +++ b/specification/modules/receipts.rst @@ -1,66 +1,64 @@ Receipts --------- +======== .. _module:receipts: -Receipts are used to publish which events in a room the user or their devices -have interacted with. For example, which events the user has read. For -efficiency this is done as "up to" markers, i.e. marking a particular event -as, say, ``read`` indicates the user has read all events *up to* that event. +This module adds in support for receipts. These receipts are a form of +acknowledgement of an event. This module defines a single acknowledgement: +``m.read`` which indicates that the user has read up to a given event. -Client-Server API -~~~~~~~~~~~~~~~~~ +Sending a receipt for each event can result in sending large amounts of traffic +to a homeserver. To prevent this from becoming a problem, receipts are implemented +using "up to" markers. This marker indicates that the acknowledgement applies +to all events "up to and including" the event specified. For example, marking +an event as "read" would indicate that the user had read all events *up to* the +referenced event. -Clients will receive receipts in the following format:: +Events +------ +Each ``user_id``, ``receipt_type`` pair must be associated with only a +single ``event_id``. - { - "type": "m.receipt", - "room_id": , - "content": { - : { - : { - : { "ts": , ... }, - ... - } - }, - ... - } - } +{{m_receipt_event}} -For example:: +Client behaviour +---------------- - { - "type": "m.receipt", - "room_id": "!KpjVgQyZpzBwvMBsnT:matrix.org", - "content": { - "$1435641916114394fHBLK:matrix.org": { - "read": { - "@erikj:jki.re": { "ts": 1436451550453 }, - ... - } - }, - ... - } - } +In v1 ``/initialSync``, receipts are listed in a separate top level ``receipts`` +key. In v2 ``/sync``, receipts are contained in the ``ephemeral`` block for a +room. New receipts that come down the event streams are deltas which update +existing mappings. Clients should replace older receipt acknowledgements based +on ``user_id`` and ``receipt_type`` pairs. For example:: -For efficiency, receipts are batched into one event per room. In the initialSync -and v2 sync APIs the receipts are listed in a separate top level ``receipts`` -key. Each ``user_id``, ``receipt_type`` pair must be associated with only a -single ``event_id``. New receipts that come down the event streams are deltas. -Deltas update existing mappings, clobbering based on ``user_id``, -``receipt_type`` pairs. + Client receives m.receipt: + user = @alice:example.com + receipt_type = m.read + event_id = $aaa:example.com + Client receives another m.receipt: + user = @alice:example.com + receipt_type = m.read + event_id = $bbb:example.com -A client can update the markers for its user by issuing a request:: + The client should replace the older acknowledgement for $aaa:example.com with + this one for $bbb:example.com - POST /_matrix/client/v2_alpha/rooms//receipt/read/ +Clients should send read receipts when there is some certainty that the event in +question has been **displayed** to the user. Simply receiving an event does not +provide enough certainty that the user has seen the event. The user SHOULD need +to *take some action* such as viewing the room that the event was sent to or +dismissing a notification in order for the event to count as "read". -Where the contents of the ``POST`` will be included in the content sent to -other users. The server will automatically set the ``ts`` field. +A client can update the markers for its user by interacting with the following +HTTP APIs. +{{v2_receipts_http_api}} -Server-Server API -~~~~~~~~~~~~~~~~~ +Server behaviour +---------------- + +For efficiency, receipts SHOULD be batched into one event per room before +delivering them to clients. Receipts are sent across federation as EDUs with type ``m.receipt``. The format of the EDUs are:: @@ -75,5 +73,12 @@ format of the EDUs are:: ... } -These are always sent as deltas to previously sent receipts. +These are always sent as deltas to previously sent receipts. Currently only a +single ```` should be used: ``m.read``. + +Security considerations +----------------------- + +As receipts are sent outside the context of the event graph, there are no +integrity checks performed on the contents of ``m.receipt`` events. diff --git a/specification/modules/voip_events.rst b/specification/modules/voip_events.rst index 4786ae63..a7b02538 100644 --- a/specification/modules/voip_events.rst +++ b/specification/modules/voip_events.rst @@ -1,20 +1,26 @@ Voice over IP -------------- +============= .. _module:voip: -Matrix can also be used to set up VoIP calls. This is part of the core -specification, although is at a relatively early stage. Voice (and video) over -Matrix is built on the WebRTC 1.0 standard. Call events are sent to a room, like -any other event. This means that clients must only send call events to rooms -with exactly two participants as currently the WebRTC standard is based around -two-party communication. +This module outlines how two users in a room can set up a Voice over IP (VoIP) +call to each other. Voice and video calls are built upon the WebRTC 1.0 standard. +Call signalling is achieved by sending `message events`_ to the room. As a result, +this means that clients MUST only send call events to rooms with exactly two +participants as currently the WebRTC standard is based around two-party +communication. + +.. _message events: `sect:events`_ + +Events +------ {{voip_events}} -Message Exchange -~~~~~~~~~~~~~~~~ -A call is set up with messages exchanged as follows: +Client behaviour +---------------- + +A call is set up with message events exchanged as follows: :: @@ -41,28 +47,55 @@ Or a rejected call: Calls are negotiated according to the WebRTC specification. - Glare ~~~~~ -This specification aims to address the problem of two users calling each other -at roughly the same time and their invites crossing on the wire. It is a far -better experience for the users if their calls are connected if it is clear -that their intention is to set up a call with one another. In Matrix, calls are -to rooms rather than users (even if those rooms may only contain one other user) -so we consider calls which are to the same room. The rules for dealing with such -a situation are as follows: - - If an invite to a room is received whilst the client is preparing to send an - invite to the same room, the client should cancel its outgoing call and - instead automatically accept the incoming call on behalf of the user. - - If an invite to a room is received after the client has sent an invite to - the same room and is waiting for a response, the client should perform a - lexicographical comparison of the call IDs of the two calls and use the - lesser of the two calls, aborting the greater. If the incoming call is the - lesser, the client should accept this call on behalf of the user. +"Glare" is a problem which occurs when two users call each other at roughly the +same time. This results in the call failing to set up as there already is an +incoming/outgoing call. A glare resolution algorithm can be used to determine +which call to hangup and which call to answer. If both clients implement the +same algorithm then they will both select the same call and the call will be +successfully connected. + + +As calls are "placed" to rooms rather than users, the glare resolution algorithm +outlined below is only considered for calls which are to the same room. The +algorithm is as follows: + + - If an ``m.call.invite`` to a room is received whilst the client is + **preparing to send** an ``m.call.invite`` to the same room: + + * the client should cancel its outgoing call and instead + automatically accept the incoming call on behalf of the user. + + - If an ``m.call.invite`` to a room is received **after the client has sent** + an ``m.call.invite`` to the same room and is waiting for a response: + + * the client should perform a lexicographical comparison of the call IDs of + the two calls and use the *lesser* of the two calls, aborting the + greater. If the incoming call is the lesser, the client should accept + this call on behalf of the user. + The call setup should appear seamless to the user as if they had simply placed -a call and the other party had accepted. Thusly, any media stream that had been +a call and the other party had accepted. This means any media stream that had been setup for use on a call should be transferred and used for the call that replaces it. +Server behaviour +---------------- + +The homeserver MAY provide a TURN server which clients can use to contact the +remote party. The following HTTP API endpoints will be used by clients in order +to get information about the TURN server. + +{{voip_http_api}} + + +Security considerations +----------------------- + +Calls should only be placed to rooms with one other user in them. If they are +placed to group chat rooms it is possible that another user will intercept and +answer the call. + diff --git a/templating/matrix_templates/units.py b/templating/matrix_templates/units.py index 1e449b5d..eebfba84 100644 --- a/templating/matrix_templates/units.py +++ b/templating/matrix_templates/units.py @@ -19,6 +19,7 @@ import yaml V1_CLIENT_API = "../api/client-server/v1" V1_EVENT_EXAMPLES = "../event-schemas/examples/v1" V1_EVENT_SCHEMA = "../event-schemas/schema/v1" +V2_CLIENT_API = "../api/client-server/v2_alpha" CORE_EVENT_SCHEMA = "../event-schemas/schema/v1/core-event-schema" CHANGELOG = "../CHANGELOG.rst" TARGETS = "../specification/targets.yaml" @@ -49,8 +50,17 @@ def get_json_schema_object_fields(obj, enforce_title=False): } tables = [fields] - props = obj.get("properties", obj.get("patternProperties")) parents = obj.get("allOf") + props = obj.get("properties") + if not props: + props = obj.get("patternProperties") + if props: + # try to replace horrible regex key names with pretty x-pattern ones + for key_name in props.keys(): + pretty_key = props[key_name].get("x-pattern") + if pretty_key: + props[pretty_key] = props[key_name] + del props[key_name] if not props and not parents: raise Exception( "Object %s has no properties or parents." % obj @@ -70,10 +80,17 @@ def get_json_schema_object_fields(obj, enforce_title=False): if props[key_name]["type"] == "object": if props[key_name].get("additionalProperties"): # not "really" an object, just a KV store - value_type = ( - "{string: %s}" % - props[key_name]["additionalProperties"]["type"] - ) + prop_val = props[key_name]["additionalProperties"]["type"] + if prop_val == "object": + nested_object = get_json_schema_object_fields( + props[key_name]["additionalProperties"], + enforce_title=True + ) + value_type = "{string: %s}" % nested_object[0]["title"] + if not nested_object[0].get("no-table"): + tables += nested_object + else: + value_type = "{string: %s}" % prop_val else: nested_object = get_json_schema_object_fields( props[key_name], @@ -337,18 +354,27 @@ class MatrixUnits(Units): } def load_swagger_apis(self): - path = V1_CLIENT_API + paths = [ + V1_CLIENT_API, V2_CLIENT_API + ] apis = {} - for filename in os.listdir(path): - if not filename.endswith(".yaml"): + for path in paths: + is_v2 = (path == V2_CLIENT_API) + if not os.path.exists(V2_CLIENT_API): + self.log("Skipping v2 apis: %s does not exist." % V2_CLIENT_API) continue - self.log("Reading swagger API: %s" % filename) - with open(os.path.join(path, filename), "r") as f: - # strip .yaml - group_name = filename[:-5].replace("-", "_") - api = yaml.load(f.read()) - api["__meta"] = self._load_swagger_meta(api, group_name) - apis[group_name] = api + for filename in os.listdir(path): + if not filename.endswith(".yaml"): + continue + self.log("Reading swagger API: %s" % filename) + with open(os.path.join(path, filename), "r") as f: + # strip .yaml + group_name = filename[:-5].replace("-", "_") + if is_v2: + group_name = "v2_" + group_name + api = yaml.load(f.read()) + api["__meta"] = self._load_swagger_meta(api, group_name) + apis[group_name] = api return apis def load_common_event_fields(self):