96 lines
3.4 KiB
TypeScript
96 lines
3.4 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {ObservableMap} from "../../observable/map/ObservableMap";
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import type {Room} from "../room/Room";
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import type {StateEvent} from "../storage/types";
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import type {ILogItem} from "../../logging/types";
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import {WebRTC, PeerConnection, PeerConnectionHandler, StreamPurpose} from "../../platform/types/WebRTC";
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import {MediaDevices, Track, AudioTrack, TrackType} from "../../platform/types/MediaDevices";
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import type {SignallingMessage} from "./PeerCall";
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import type {MGroupCallBase} from "./callEventTypes";
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const GROUP_CALL_TYPE = "m.call";
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const GROUP_CALL_MEMBER_TYPE = "m.call.member";
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enum CallSetupMessageType {
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Invite = "m.call.invite",
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Answer = "m.call.answer",
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Candidates = "m.call.candidates",
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Hangup = "m.call.hangup",
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}
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const CONF_ID = "conf_id";
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const CALL_TERMINATED = "m.terminated";
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export class GroupCallHandler {
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// group calls by call id
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public readonly calls: ObservableMap<string, GroupCall> = new ObservableMap<string, GroupCall>();
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constructor() {
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}
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// TODO: check and poll turn server credentials here
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handleRoomState(room: Room, events: StateEvent[], log: ILogItem) {
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// first update call events
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for (const event of events) {
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if (event.type === GROUP_CALL_TYPE) {
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const callId = event.state_key;
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let call = this.calls.get(callId);
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if (call) {
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call.updateCallEvent(event);
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if (call.isTerminated) {
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this.calls.remove(call.id);
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}
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} else {
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call = new GroupCall(event, room);
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this.calls.set(call.id, call);
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}
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}
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}
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// then update participants
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for (const event of events) {
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if (event.type === GROUP_CALL_MEMBER_TYPE) {
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const participant = event.state_key;
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const sources = event.content["m.sources"];
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for (const source of sources) {
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const call = this.calls.get(source[CONF_ID]);
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if (call && !call.isTerminated) {
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call.addParticipant(participant, source);
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}
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}
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}
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}
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}
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handlesDeviceMessageEventType(eventType: string | undefined): boolean {
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return eventType === CallSetupMessageType.Invite ||
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eventType === CallSetupMessageType.Candidates ||
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eventType === CallSetupMessageType.Answer ||
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eventType === CallSetupMessageType.Hangup;
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}
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handleDeviceMessage(senderUserId: string, senderDeviceId: string, event: SignallingMessage<MGroupCallBase>, log: ILogItem) {
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const call = this.calls.get(event.content.conf_id);
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call?.handleDeviceMessage(senderUserId, senderDeviceId, event, log);
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}
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}
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