forked from CyCoreSystems/ari-proxy
/
main.go
144 lines (116 loc) · 3.21 KB
/
main.go
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package main
import (
"sync"
"golang.org/x/net/context"
"github.com/inconshreveable/log15"
"github.com/CyCoreSystems/ari"
"github.com/CyCoreSystems/ari-proxy/client"
"github.com/CyCoreSystems/ari/ext/play"
"github.com/CyCoreSystems/ari/rid"
"github.com/pkg/errors"
)
var ariApp = "test"
var log = log15.New()
var bridge *ari.BridgeHandle
func main() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// connect
log.Info("Connecting to ARI")
cl, err := client.New(ctx, client.WithApplication(ariApp), client.WithLogger(log))
if err != nil {
log.Error("Failed to build ARI client", "error", err)
return
}
// setup app
log.Info("Starting listener app")
err = client.Listen(ctx, cl, appStart(ctx, cl))
if err != nil {
log.Error("failed to listen for new calls")
}
<-ctx.Done()
return
}
func appStart(ctx context.Context, cl ari.Client) func(*ari.ChannelHandle, *ari.StasisStart) {
return func(h *ari.ChannelHandle, startEvent *ari.StasisStart) {
log.Info("running app", "channel", h.Key().ID)
if err := h.Answer(); err != nil {
log.Error("failed to answer call", "error", err)
//return
}
if err := ensureBridge(ctx, cl, h.Key()); err != nil {
log.Error("failed to manage bridge", "error", err)
return
}
if err := bridge.AddChannel(h.Key().ID); err != nil {
log.Error("failed to add channel to bridge", "error", err)
return
}
log.Info("channel added to bridge")
return
}
}
type bridgeManager struct {
h *ari.BridgeHandle
}
func ensureBridge(ctx context.Context, cl ari.Client, src *ari.Key) (err error) {
if bridge != nil {
log.Debug("Bridge already exists")
return nil
}
key := src.New(ari.BridgeKey, rid.New(rid.Bridge))
bridge, err = cl.Bridge().Create(key, "mixing", key.ID)
if err != nil {
bridge = nil
return errors.Wrap(err, "failed to create bridge")
}
wg := new(sync.WaitGroup)
wg.Add(1)
go manageBridge(ctx, bridge, wg)
wg.Wait()
return nil
}
func manageBridge(ctx context.Context, h *ari.BridgeHandle, wg *sync.WaitGroup) {
// Delete the bridge when we exit
defer h.Delete()
destroySub := h.Subscribe(ari.Events.BridgeDestroyed)
defer destroySub.Cancel()
enterSub := h.Subscribe(ari.Events.ChannelEnteredBridge)
defer enterSub.Cancel()
leaveSub := h.Subscribe(ari.Events.ChannelLeftBridge)
defer leaveSub.Cancel()
wg.Done()
for {
select {
case <-ctx.Done():
return
case <-destroySub.Events():
log.Debug("bridge destroyed")
return
case e, ok := <-enterSub.Events():
if !ok {
log.Error("channel entered subscription closed")
return
}
v := e.(*ari.ChannelEnteredBridge)
log.Debug("channel entered bridge", "channel", v.Channel.Name)
go func() {
if err := play.Play(ctx, h, play.URI("sound:confbridge-join")).Err(); err != nil {
log.Error("failed to play join sound", "error", err)
}
}()
case e, ok := <-leaveSub.Events():
if !ok {
log.Error("channel left subscription closed")
return
}
v := e.(*ari.ChannelLeftBridge)
log.Debug("channel left bridge", "channel", v.Channel.Name)
go func() {
if err := play.Play(ctx, h, play.URI("sound:confbridge-leave")).Err(); err != nil {
log.Error("failed to play leave sound", "error", err)
}
}()
}
}
}