60 lines
2.0 KiB
JavaScript
60 lines
2.0 KiB
JavaScript
/**
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* WebRTC signaling message handlers.
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* Processes WebSocket messages for WebRTC operations.
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*/
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import { getLiveSession, updateLiveSession } from './liveSessions.js'
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import { getRouter, createTransport, getTransport } from './mediasoup.js'
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/**
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* Handle WebSocket message for WebRTC signaling.
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* @param {string} userId
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* @param {string} sessionId
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* @param {string} type
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* @param {object} data
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* @returns {Promise<object | null>} Response message or null
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*/
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export async function handleWebSocketMessage(userId, sessionId, type, data) {
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const session = getLiveSession(sessionId)
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if (!session) {
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return { error: 'Session not found' }
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}
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if (['create-transport', 'connect-transport'].includes(type) && session.userId !== userId) {
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return { error: 'Forbidden' }
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}
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try {
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switch (type) {
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case 'get-router-rtp-capabilities': {
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const router = await getRouter(sessionId)
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return { type: 'router-rtp-capabilities', data: router.rtpCapabilities }
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}
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case 'create-transport': {
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const router = await getRouter(sessionId)
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const { transport, params } = await createTransport(router)
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updateLiveSession(sessionId, { transportId: transport.id, routerId: router.id })
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return { type: 'transport-created', data: params }
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}
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case 'connect-transport': {
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const { transportId, dtlsParameters } = data
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if (!transportId || !dtlsParameters) {
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return { error: 'transportId and dtlsParameters required' }
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}
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const transport = getTransport(transportId)
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if (!transport) {
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return { error: 'Transport not found' }
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}
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await transport.connect({ dtlsParameters })
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return { type: 'transport-connected', data: { connected: true } }
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}
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default:
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return { error: `Unknown message type: ${type}` }
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}
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}
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catch (err) {
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console.error('[webrtc-signaling] Error:', err)
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return { error: err.message || 'Internal error' }
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}
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}
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