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Add experimental support for ICE TCP
See pion/ice issue and PR: - https://github.com/pion/ice/tree/issue-196 - pion/ice#226
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| Original file line number | Diff line number | Diff line change |
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| # ice-tcp | ||
| ice-tcp demonstrates Pion WebRTC's ICE TCP abilities. | ||
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| ## Instructions | ||
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| ### Download ice-tcp | ||
| This example requires you to clone the repo since it is serving static HTML. | ||
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| ``` | ||
| mkdir -p $GOPATH/src/github.com/pion | ||
| cd $GOPATH/src/github.com/pion | ||
| git clone https://github.com/pion/webrtc.git | ||
| cd webrtc/examples/ice-tcp | ||
| ``` | ||
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| ### Run ice-tcp | ||
| Execute `go run *.go` | ||
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| ### Open the Web UI | ||
| Open [http://localhost:8080](http://localhost:8080). This will automatically start a PeerConnection. This page will now prints stats about the PeerConnection. The UDP candidates will be filtered out from the SDP. | ||
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| Congrats, you have used Pion WebRTC! Now start building something cool |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,54 @@ | ||
| <html> | ||
| <head> | ||
| <title>ice-tcp</title> | ||
| </head> | ||
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| <body> | ||
| <button onclick="window.doSignaling(true)"> ICE TCP </button><br /> | ||
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| <h3> ICE Connection States </h3> | ||
| <div id="iceConnectionStates"></div> <br /> | ||
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| <h3> Inbound DataChannel Messages </h3> | ||
| <div id="inboundDataChannelMessages"></div> | ||
| </body> | ||
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| <script> | ||
| let pc = new RTCPeerConnection() | ||
| let dc = pc.createDataChannel('data') | ||
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| dc.onmessage = event => { | ||
| let el = document.createElement('p') | ||
| el.appendChild(document.createTextNode(event.data)) | ||
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| document.getElementById('inboundDataChannelMessages').appendChild(el); | ||
| } | ||
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| pc.oniceconnectionstatechange = () => { | ||
| let el = document.createElement('p') | ||
| el.appendChild(document.createTextNode(pc.iceConnectionState)) | ||
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| document.getElementById('iceConnectionStates').appendChild(el); | ||
| } | ||
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| pc.createOffer() | ||
| .then(offer => { | ||
| pc.setLocalDescription(offer) | ||
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| return fetch(`/doSignaling`, { | ||
| method: 'post', | ||
| headers: { | ||
| 'Accept': 'application/json, text/plain, */*', | ||
| 'Content-Type': 'application/json' | ||
| }, | ||
| body: JSON.stringify(offer) | ||
| }) | ||
| }) | ||
| .then(res => res.json()) | ||
| .then(res => { | ||
| pc.setRemoteDescription(res) | ||
| }) | ||
| .catch(alert) | ||
| </script> | ||
| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package main | ||
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| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "net/http" | ||
| "time" | ||
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| "github.com/pion/webrtc/v3" | ||
| ) | ||
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| var peerConnection *webrtc.PeerConnection //nolint | ||
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| func doSignaling(w http.ResponseWriter, r *http.Request) { | ||
| var err error | ||
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| if peerConnection == nil { | ||
| m := webrtc.MediaEngine{} | ||
| m.RegisterDefaultCodecs() | ||
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| settingEngine := webrtc.SettingEngine{} | ||
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| // Enable support only for TCP ICE candidates. | ||
| settingEngine.SetNetworkTypes([]webrtc.NetworkType{ | ||
| webrtc.NetworkTypeTCP4, | ||
| webrtc.NetworkTypeTCP6, | ||
| }) | ||
| settingEngine.SetICETCPPort(8443) | ||
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| api := webrtc.NewAPI( | ||
| webrtc.WithMediaEngine(m), | ||
| webrtc.WithSettingEngine(settingEngine), | ||
| ) | ||
| if peerConnection, err = api.NewPeerConnection(webrtc.Configuration{}); err != nil { | ||
| panic(err) | ||
| } | ||
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| // Set the handler for ICE connection state | ||
| // This will notify you when the peer has connected/disconnected | ||
| peerConnection.OnICEConnectionStateChange(func(connectionState webrtc.ICEConnectionState) { | ||
| fmt.Printf("ICE Connection State has changed: %s\n", connectionState.String()) | ||
| }) | ||
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| // Send the current time via a DataChannel to the remote peer every 3 seconds | ||
| peerConnection.OnDataChannel(func(d *webrtc.DataChannel) { | ||
| d.OnOpen(func() { | ||
| for range time.Tick(time.Second * 3) { | ||
| if err = d.SendText(time.Now().String()); err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
| }) | ||
| }) | ||
| } | ||
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| var offer webrtc.SessionDescription | ||
| if err = json.NewDecoder(r.Body).Decode(&offer); err != nil { | ||
| panic(err) | ||
| } | ||
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| if err = peerConnection.SetRemoteDescription(offer); err != nil { | ||
| panic(err) | ||
| } | ||
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| // Create channel that is blocked until ICE Gathering is complete | ||
| gatherComplete := webrtc.GatheringCompletePromise(peerConnection) | ||
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| answer, err := peerConnection.CreateAnswer(nil) | ||
| if err != nil { | ||
| panic(err) | ||
| } else if err = peerConnection.SetLocalDescription(answer); err != nil { | ||
| panic(err) | ||
| } | ||
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| // Block until ICE Gathering is complete, disabling trickle ICE | ||
| // we do this because we only can exchange one signaling message | ||
| // in a production application you should exchange ICE Candidates via OnICECandidate | ||
| <-gatherComplete | ||
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| response, err := json.Marshal(*peerConnection.LocalDescription()) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
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| w.Header().Set("Content-Type", "application/json") | ||
| if _, err := w.Write(response); err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
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| func main() { | ||
| http.Handle("/", http.FileServer(http.Dir("."))) | ||
| http.HandleFunc("/doSignaling", doSignaling) | ||
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| fmt.Println("Open http://localhost:8080 to access this demo") | ||
| panic(http.ListenAndServe(":8080", nil)) | ||
| } |
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