func (this *DefaultDispatcher) DispatchToOutbound(meta *proxy.InboundHandlerMeta, session *proxy.SessionInfo) ray.InboundRay {
direct := ray.NewRay()
dispatcher := this.ohm.GetDefaultHandler()
destination := session.Destination
if this.router != nil {
if tag, err := this.router.TakeDetour(destination); err == nil {
if handler := this.ohm.GetHandler(tag); handler != nil {
log.Info("DefaultDispatcher: Taking detour [", tag, "] for [", destination, "].")
dispatcher = handler
} else {
log.Warning("DefaultDispatcher: Nonexisting tag: ", tag)
}
} else {
log.Info("DefaultDispatcher: Default route for ", destination)
}
}
if meta.AllowPassiveConnection {
go dispatcher.Dispatch(destination, alloc.NewLocalBuffer(32).Clear(), direct)
} else {
go this.FilterPacketAndDispatch(destination, direct, dispatcher)
}
return direct
}
func (this *TestPacketDispatcher) DispatchToOutbound(meta *proxy.InboundHandlerMeta, session *proxy.SessionInfo) ray.InboundRay {
traffic := ray.NewRay()
this.Destination <- session.Destination
go this.Handler(session.Destination, traffic)
return traffic
}
func (v *TestPacketDispatcher) DispatchToOutbound(session *proxy.SessionInfo) ray.InboundRay {
traffic := ray.NewRay()
v.Destination <- session.Destination
go v.Handler(session.Destination, traffic)
return traffic
}
func (h *Handler) Dial(ctx context.Context, dest v2net.Destination) (internet.Connection, error) {
if h.senderSettings != nil {
if h.senderSettings.ProxySettings.HasTag() {
tag := h.senderSettings.ProxySettings.Tag
handler := h.outboundManager.GetHandler(tag)
if handler != nil {
log.Info("Proxyman|OutboundHandler: Proxying to ", tag)
ctx = proxy.ContextWithDestination(ctx, dest)
stream := ray.NewRay(ctx)
go handler.Dispatch(ctx, stream)
return NewConnection(stream), nil
}
log.Warning("Proxyman|OutboundHandler: Failed to get outbound handler with tag: ", tag)
}
if h.senderSettings.Via != nil {
ctx = internet.ContextWithDialerSource(ctx, h.senderSettings.Via.AsAddress())
}
if h.senderSettings != nil {
ctx = internet.ContextWithStreamSettings(ctx, h.senderSettings.StreamSettings)
}
}
return internet.Dial(ctx, dest)
}
func (v *DefaultDispatcher) DispatchToOutbound(session *proxy.SessionInfo) ray.InboundRay {
direct := ray.NewRay()
dispatcher := v.ohm.GetDefaultHandler()
destination := session.Destination
if v.router != nil {
if tag, err := v.router.TakeDetour(session); err == nil {
if handler := v.ohm.GetHandler(tag); handler != nil {
log.Info("DefaultDispatcher: Taking detour [", tag, "] for [", destination, "].")
dispatcher = handler
} else {
log.Warning("DefaultDispatcher: Nonexisting tag: ", tag)
}
} else {
log.Info("DefaultDispatcher: Default route for ", destination)
}
}
if session.Inbound != nil && session.Inbound.AllowPassiveConnection {
go dispatcher.Dispatch(destination, buf.NewLocal(32), direct)
} else {
go v.FilterPacketAndDispatch(destination, direct, dispatcher)
}
return direct
}
func (v *OutboundProxy) Dial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
handler := v.outboundManager.GetHandler(options.Proxy.Tag)
if handler == nil {
log.Warning("Proxy: Failed to get outbound handler with tag: ", options.Proxy.Tag)
return internet.Dial(src, dest, internet.DialerOptions{
Stream: options.Stream,
})
}
log.Info("Proxy: Dialing to ", dest)
stream := ray.NewRay()
go handler.Dispatch(dest, nil, stream)
return NewProxyConnection(src, dest, stream), nil
}
func TestUnreachableDestination(t *testing.T) {
assert := assert.On(t)
freedom := NewFreedomConnection(
&Config{},
app.NewSpace(),
&proxy.OutboundHandlerMeta{
Address: v2net.AnyIP,
StreamSettings: &internet.StreamConfig{
Network: v2net.Network_RawTCP,
},
})
traffic := ray.NewRay()
data2Send := "Data to be sent to remote"
payload := alloc.NewLocalBuffer(2048).Clear().Append([]byte(data2Send))
err := freedom.Dispatch(v2net.TCPDestination(v2net.IPAddress([]byte{127, 0, 0, 1}), 128), payload, traffic)
assert.Error(err).IsNotNil()
}
func TestSinglePacket(t *testing.T) {
assert := assert.On(t)
tcpServer := &tcp.Server{
MsgProcessor: func(data []byte) []byte {
buffer := make([]byte, 0, 2048)
buffer = append(buffer, []byte("Processed: ")...)
buffer = append(buffer, data...)
return buffer
},
}
_, err := tcpServer.Start()
assert.Error(err).IsNil()
space := app.NewSpace()
freedom := NewFreedomConnection(
&Config{},
space,
&proxy.OutboundHandlerMeta{
Address: v2net.AnyIP,
StreamSettings: &internet.StreamConfig{
Network: v2net.Network_RawTCP,
},
})
space.Initialize()
traffic := ray.NewRay()
data2Send := "Data to be sent to remote"
payload := buf.NewLocal(2048)
payload.Append([]byte(data2Send))
go freedom.Dispatch(v2net.TCPDestination(v2net.LocalHostIP, tcpServer.Port), payload, traffic)
traffic.InboundInput().Close()
respPayload, err := traffic.InboundOutput().Read()
assert.Error(err).IsNil()
assert.String(respPayload.String()).Equals("Processed: Data to be sent to remote")
tcpServer.Close()
}
func (v *DefaultDispatcher) DispatchToOutbound(ctx context.Context) ray.InboundRay {
dispatcher := v.ohm.GetDefaultHandler()
destination := proxy.DestinationFromContext(ctx)
if !destination.IsValid() {
panic("Dispatcher: Invalid destination.")
}
if v.router != nil {
if tag, err := v.router.TakeDetour(ctx); err == nil {
if handler := v.ohm.GetHandler(tag); handler != nil {
log.Info("DefaultDispatcher: Taking detour [", tag, "] for [", destination, "].")
dispatcher = handler
} else {
log.Warning("DefaultDispatcher: Nonexisting tag: ", tag)
}
} else {
log.Info("DefaultDispatcher: Default route for ", destination)
}
}
direct := ray.NewRay(ctx)
var waitFunc func() error
if allowPassiveConnection, ok := proxy.AllowPassiveConnectionFromContext(ctx); ok && allowPassiveConnection {
waitFunc = noOpWait()
} else {
wdi := &waitDataInspector{
hasData: make(chan bool, 1),
}
direct.AddInspector(wdi)
waitFunc = waitForData(wdi)
}
go v.waitAndDispatch(ctx, waitFunc, direct, dispatcher)
return direct
}