host.js

   1 document.title = "Strapp.io Host"
   2 const clients = [] //TODO: Change to Map
   3 if ("WebSocket" in window) {
   4   document.addEventListener('DOMContentLoaded', (event) => {
   5     const wsock = new WebSocket(`${_strapp_protocol}://${window.location.hostname}:${_strapp_port}`)
   6     wsock.onopen = () => {
   7       console.log(`Strapped to ${_strapp_protocol}://${window.location.hostname}:${_strapp_port}`)
   8
   9     }
  10     wsock.onmessage = (msg) => {
  11       /* Message is offer from client */
  12       console.log("Incoming connection " + msg)
  13
  14       /* State machine to parse offer */
  15
  16       /* New Client Connection*/
  17       hpc = new RTCPeerConnection()
  18
  19       hpc.createAnswer().then((offer) => {
  20         return hpc.setLocalDescription(offer)
  21       }).then(() => {
  22         return hpc.setRemoteDescription(msg.sdp)
  23       }).then(() => {
  24         const hpk = getPublicKey()
  25         wsock.send({
  26           cmd: '< sdp pubKey'
  27           sdp: hpc.localDescription
  28           pubKey: hpk
  29         })
  30         clients.push({
  31           sdp: hpc.localDescription
  32           clientPubKey: msg.pubKey
  33         })
  34       })
  35     }
  36   })
  37 }
  38 else {
  39   document.addEventListener('DOMContentLoaded', () => {
  40     document.body.innerHTML = 'Websockets not supported in your browser'
  41   })
  42 }