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bf422e0c0a
OnICEConnectionStateChange now return a ICEConnectionState instead of ice.ConnectionState. Resolves #422
108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package main
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import (
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"fmt"
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"time"
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"github.com/pions/datachannel"
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"github.com/pions/webrtc"
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"github.com/pions/webrtc/examples/util"
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)
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const messageSize = 15
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func main() {
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// Since this behavior diverges from the WebRTC API it has to be
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// enabled using global switch.
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// Mixing both behaviors is not supported.
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webrtc.DetachDataChannels()
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// Everything below is the pion-WebRTC API! Thanks for using it ❤️.
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// Prepare the configuration
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config := webrtc.Configuration{
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ICEServers: []webrtc.ICEServer{
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{
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URLs: []string{"stun:stun.l.google.com:19302"},
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},
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},
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}
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// Create a new RTCPeerConnection
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peerConnection, err := webrtc.NewPeerConnection(config)
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util.Check(err)
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// Set the handler for ICE connection state
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// This will notify you when the peer has connected/disconnected
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peerConnection.OnICEConnectionStateChange(func(connectionState webrtc.ICEConnectionState) {
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fmt.Printf("ICE Connection State has changed: %s\n", connectionState.String())
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})
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// Register data channel creation handling
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peerConnection.OnDataChannel(func(d *webrtc.DataChannel) {
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fmt.Printf("New DataChannel %s %d\n", d.Label, d.ID)
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// Register channel opening handling
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d.OnOpen(func() {
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fmt.Printf("Data channel '%s'-'%d' open.\n", d.Label, d.ID)
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// Detach the data channel
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raw, dErr := d.Detach()
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util.Check(dErr)
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// Handle reading from the data channel
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go ReadLoop(raw)
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// Handle writing to the data channel
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go WriteLoop(raw)
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})
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})
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// Wait for the offer to be pasted
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offer := webrtc.SessionDescription{}
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util.Decode(util.MustReadStdin(), offer)
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// Set the remote SessionDescription
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err = peerConnection.SetRemoteDescription(offer)
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util.Check(err)
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// Create answer
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answer, err := peerConnection.CreateAnswer(nil)
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util.Check(err)
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// Sets the LocalDescription, and starts our UDP listeners
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err = peerConnection.SetLocalDescription(answer)
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util.Check(err)
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// Output the answer in base64 so we can paste it in browser
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fmt.Println(util.Encode(answer))
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// Block forever
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select {}
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}
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// ReadLoop shows how to read from the datachannel directly
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func ReadLoop(d *datachannel.DataChannel) {
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for {
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buffer := make([]byte, messageSize)
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n, err := d.Read(buffer)
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if err != nil {
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fmt.Println("Datachannel closed; Exit the readloop:", err)
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return
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}
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fmt.Printf("Message from DataChannel '%s': %s\n", d.Label, string(buffer[:n]))
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}
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}
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// WriteLoop shows how to write to the datachannel directly
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func WriteLoop(d *datachannel.DataChannel) {
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for range time.NewTicker(5 * time.Second).C {
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message := util.RandSeq(messageSize)
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fmt.Printf("Sending %s \n", message)
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_, err := d.Write([]byte(message))
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util.Check(err)
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}
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}
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