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publisher.go
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publisher.go
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package rtcfs
import (
"context"
"encoding/json"
"io/fs"
"log"
"github.com/binzume/webrtcfs/socfs"
"github.com/pion/webrtc/v3"
)
func Publish(ctx context.Context, options *ConnectOptions, fsys fs.FS) error {
authToken := options.AuthToken
authorized := authToken == ""
rtcConn, err := NewRTCConn(options.SignalingURL, options.RoomID, options.SignalingKey)
if err != nil {
return err
}
defer func() {
if err := rtcConn.Close(); err != nil {
log.Printf("cannot close peerConnection: %v\n", err)
}
}()
fileHander := socfs.NewFSServer(fsys, 8)
dataChannels := []DataChannelHandler{&DataChannelCallback{
Name: "fileServer",
OnMessageFunc: func(d *webrtc.DataChannel, msg webrtc.DataChannelMessage) {
if !authorized {
// TODO: error response
return
}
fileHander.HandleMessage(ctx, msg.Data, msg.IsString, func(res *socfs.FileOperationResult) error {
if res.IsJSON() {
return d.SendText(string(res.ToBytes()))
} else {
return d.Send(res.ToBytes())
}
})
},
}, &DataChannelCallback{
Name: "controlEvent",
OnMessageFunc: func(d *webrtc.DataChannel, msg webrtc.DataChannelMessage) {
var auth struct {
Type string `json:"type"`
Token string `json:"token"`
}
_ = json.Unmarshal(msg.Data, &auth)
if auth.Type == "auth" {
authorized = authorized || auth.Token == authToken
j, _ := json.Marshal(map[string]interface{}{
"type": "authResult",
"result": authorized,
"services": map[string]interface{}{"file": fileHander.FSCaps()},
})
d.SendText(string(j))
}
},
}}
rtcConn.Start(dataChannels)
return rtcConn.Wait(ctx)
}