38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
function errorHandler(error) {
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console.log(error);
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}
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export function createPeer(peerExchange, peerConnectionConfig) {
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const conn = new RTCPeerConnection(peerConnectionConfig);
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conn.addEventListener('icecandidate', event => {
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if(event.candidate != null) {
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peerExchange.send({'ice': event.candidate});
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}
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});
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peerExchange.listen(createPeerExchangeMessageHandler(conn));
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return conn;
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}
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function createPeerExchangeMessageHandler(conn) {
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return function gotMessageFromServer(signal, send) {
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if(signal.sdp) {
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conn.setRemoteDescription(new RTCSessionDescription(signal.sdp))
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.then(() => {
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// Only create answers in response to offers
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if(signal.sdp.type == 'offer') {
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return conn.createAnswer()
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.then(desc => {
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conn.setLocalDescription(desc);
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send({'sdp': desc})
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});
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}
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}).catch(errorHandler);
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} else if(signal.ice) {
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conn.addIceCandidate(new RTCIceCandidate(signal.ice)).catch(errorHandler);
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}
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};
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}
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