document.title = "Strapp.io Client"
body.appendChild(root)
document.body = body
-const conf = {"iceServers": [{ "url": "stun:stun.1.google.com:19302" }] }
-/* Poll the server. Send get request, wait for timeout, send another request.
- Do this until...? Can be used for either reconnecting or waiting for answer*/
-function pollServerTimeout(url, data, resolve, reject) {
- console.log(`Polling server ${url} with ${data}`)
- const request = new XMLHttpRequest()
- request.open('GET', url, true)
- request.setRequestHeader('Content-Type', 'application/json' )
- request.setRequestHeader('X-Strapp-Type', JSON.stringify(data))
- request.onreadystatechange = () => {
- if (request.status === 200) {
- if(request.readyState === 4) {
- console.log('Client: Recieved answer from Host')
- console.log(request)
- resolve(request.response)
- }
- }
- else if (request.status === 504) {
- console.log('timed out, resending')
- pollServerTimeout(url, data, resolve, reject)
- }
- else {
- reject('server unhandled response of status ' + request.status)
- }
- }
- request.send()
-}
-
-/* TODO: All this does is wrap a function in a promise */
-function pollServer(url, clientPubKey, func) {
- return new Promise((resolve, reject) => {
- func(url, clientPubKey, resolve, reject )
- })
-}
+const conf = {"iceServers": [{ "urls": "stun:stun.1.google.com:19302" }] }
/* TODO: duplicate in both client.js and host.js */
function getPublicKey() {
}
-/* Create, set, and get client Offer. Poll server for host answer.
- Set host answer as client remoteDescription */
-const cpc = new RTCPeerConnection(conf)
-cpc.oniceconnectionstatechange = () => {
- console.log('iceConnectionState = ' + cpc.iceConnectionState)
+function postServer(url, data) {
+ const request = new XMLHttpRequest()
+ request.open('POST', url, true)
+ request.setRequestHeader('Content-Type', 'application/json' )
+ request.setRequestHeader('X-Strapp-Type', 'ice-candidate-submission')
+ request.send(data)
}
-cpc.createOffer().then((offer) => {
- return cpc.setLocalDescription(offer)
-})
- .then(() => {
- console.log('sessionDescriptionInit = ' + cpc.localDescription)
- getPublicKey().then((cpk) => {
- console.log('cpk is' + cpk)
- let offer = {
- cmd: '> sdp pubKey',
- sdp: cpc.localDescription,
- pubKey: cpk
- }
- cpc.onicecandidate = (event) => {
- if (event.candidate) {
- console.log('Client: Sending ice candidate to host')
- pollServer(window.location, wsock.send(JSON.stringify({
- cmd: '> ice pubkey',
- ice: event.candidate,
- pubKey: cpk /* TODO: do we need to send this? */
- })), pollServerTimeout)
- }
- else {
- /* Set up data channel here */
- console.log('Client: Finished setting up ICE candidates')
+
+/* TODO: All this does is wrap a function in a promise */
+function pollServer(url, clientPubKey, func) {
+ return new Promise((resolve, reject) => {
+ func(url, clientPubKey, resolve, reject )
+ })
+}
+
+/* Poll the server. Send get request, wait for timeout, send another request.
+ Do this until...? Can be used for either reconnecting or waiting for answer*/
+function pollServerForAnswer(url, data, resolve, reject) {
+ const request = new XMLHttpRequest()
+ request.open('GET', url, true)
+ /* But there is no JSON? */
+ request.setRequestHeader('Content-Type', 'application/json' )
+ request.setRequestHeader('X-Strapp-Type', 'client-sdp-offer')
+ request.setRequestHeader('X-Client-Offer', JSON.stringify(data))
+ request.onreadystatechange = () => {
+ if (request.status === 200) {
+ if(request.readyState === 4) {
+ console.log('Client: Recieved response from Host')
+ console.log(request)
+ resolve(request.response)
}
}
- /* TODO: start polling for ice candidates, and then addIceCandidate() to cpc */
- //pollServer(window.location, {ice}, pollServerTimeout)
+ else if (request.status === 504) {
+ console.log('timed out, resending')
+ pollServerTimeout(url, data, resolve, reject)
+ }
+ else {
+ reject('server unhandled response of status ' + request.status)
+ }
+ }
+ request.send()
+}
+/* Poll server for ice candidates until ice is complete */
+function pollServerForICECandidate(cpc) {
+ window.setInterval(() => {
+ if (cpc.iceGatheringState !== 'complete') {
+ return new Promise((resolve, reject) => {
+ console.log('Client: Requesting ICE Candidates from server')
+ const request = new XMLHttpRequest()
+ request.open('GET', window.location, true)
+ request.setRequestHeader('Content-Type', 'application/json' )
+ request.setRequestHeader('X-Strapp-Type', 'ice-candidate-request')
+ request.onreadystatechange = () => {
+ if (request.status === 200) {
+ if(request.readyState === 4) {
+ console.log('Client: Recieved ICE Candidate from Host')
+ resolve(request.response)
+ }
+ }
+ else if (request.status === 204) {
+ console.log('Ice Candidate unavailable, trying again in one second')
+ }
+ else {
+ reject('server unhandled response of status ' + request.status)
+ }
+ }
+ request.send(cpc.pubKey)
+ }).then((response) => {
+ cpc.addIceCandidate(response.candidate)
+ }).catch((err) => {
+ console.log('pollServerForICECandidate: ' + err)
+ })
+ }
+ else {
+ clearTimeout()
+ }
+ }, 2000)
+}
- /* Poll for answer */
- return pollServer(window.location, offer, pollServerTimeout)
- }).then((serverResponse) => {
- const answer = JSON.parse(serverResponse)
- console.log(answer)
- /* TODO: State machine to parse answer */
- console.log('Setting Remote Description')
- cpc.setRemoteDescription(answer.sdp)
- }).catch( (err) => {
- console.log('error in sdp handshake: ' + err)
- })
-}).catch((err) => {
- console.log(err)
+/* Create, set, and get client Offer. Poll server for host answer.
+ Set host answer as client remoteDescription */
+getPublicKey().then((cpk) => {
+ const cpc = new RTCPeerConnection(conf)
+ /* Start data channel */
+ sendChannel = cpc.createDataChannel("sendChannel");
+ sendChannel.onopen = () => {
+ console.log('client data channel on line')
+ sendChannel.onmessage = (message) => {
+ console.log(message.data)
+ }
+ sendChannel.send('Hi from the Client')
+ };
+ /* Start polling for ice candidate */
+
+
+ console.log(cpc.iceConnectionState)
+ cpc.oniceconnectionstatechange = () => {
+ console.log('iceConnectionState = ' + cpc.iceConnectionState)
+ }
+
+
+
+ cpc.onnegotiationneeded = () => {
+ cpc.createOffer().then((offer) => {
+ return cpc.setLocalDescription(offer)
+ })
+ .then(() => {
+ console.log('Client: Sending offer to host')
+ let offer = {
+ cmd: '> sdp pubKey',
+ sdp: cpc.localDescription,
+ pubKey: cpk.n
+ }
+ return pollServer(window.location, offer, pollServerForAnswer)
+ }).then((serverResponse) => {
+ const answer = JSON.parse(serverResponse)
+ console.log('Client: received host answer')
+ cpc.setRemoteDescription(answer.sdp).then(() => {
+ console.log('Client: Polling for ICE candidates')
+ pollServerForICECandidate(cpc)
+ })
+ cpc.onicecandidate = (event) => {
+ if (event.candidate) {
+ console.log('Client: Sending ice candidate to host')
+ postServer(window.location, JSON.stringify({
+ cmd: '> ice pubkey',
+ ice: event.candidate,
+ pubKey: cpk.n
+ }))
+ }
+ else {
+ console.log('Client: No more Ice Candidates to send')
+ }
+ }
+ }).catch( (err) => {
+ console.log('error in sdp handshake: ' + err)
+ })
+ }
})
projects / henge / kiak.git / blobdiff