func NewInboundDetourHandlerDynamic(space app.Space, config *InboundConnectionConfig) (*InboundDetourHandlerDynamic, error) {
handler := &InboundDetourHandlerDynamic{
space: space,
config: config,
portsInUse: make(map[v2net.Port]bool),
}
handler.ichs = make([]proxy.InboundHandler, config.GetAllocationStrategyValue().Concurrency.GetValue())
// To test configuration
ichConfig, err := config.GetTypedSettings()
if err != nil {
return nil, err
}
ich, err := proxyregistry.CreateInboundHandler(config.Settings.Type, space, ichConfig, &proxy.InboundHandlerMeta{
Address: config.GetListenOnValue(),
Port: 0,
Tag: config.Tag,
StreamSettings: config.StreamSettings,
AllowPassiveConnection: config.AllowPassiveConnection,
})
if err != nil {
log.Error("Point: Failed to create inbound connection handler: ", err)
return nil, err
}
ich.Close()
return handler, nil
}
func NewInboundDetourHandlerAlways(space app.Space, config *InboundConnectionConfig) (*InboundDetourHandlerAlways, error) {
handler := &InboundDetourHandlerAlways{
space: space,
config: config,
}
ports := config.PortRange
handler.ich = make([]proxy.InboundHandler, 0, ports.To-ports.From+1)
for i := ports.FromPort(); i <= ports.ToPort(); i++ {
ichConfig, err := config.GetTypedSettings()
if err != nil {
return nil, err
}
ich, err := proxyregistry.CreateInboundHandler(config.Settings.Type, space, ichConfig, &proxy.InboundHandlerMeta{
Address: config.GetListenOnValue(),
Port: i,
Tag: config.Tag,
StreamSettings: config.StreamSettings,
AllowPassiveConnection: config.AllowPassiveConnection,
})
if err != nil {
log.Error("Failed to create inbound connection handler: ", err)
return nil, err
}
handler.ich = append(handler.ich, ich)
}
return handler, nil
}
func (this *InboundDetourHandlerDynamic) refresh() error {
this.lastRefresh = time.Now()
config := this.config
this.ich2Recyle = this.ichs
newIchs := make([]proxy.InboundHandler, config.GetAllocationStrategyValue().Concurrency.GetValue())
for idx := range newIchs {
err := retry.Timed(5, 100).On(func() error {
port := this.pickUnusedPort()
ichConfig, _ := config.GetTypedSettings()
ich, err := proxyregistry.CreateInboundHandler(config.Settings.Type, this.space, ichConfig, &proxy.InboundHandlerMeta{
Address: config.GetListenOnValue(), Port: port, Tag: config.Tag, StreamSettings: config.StreamSettings})
if err != nil {
delete(this.portsInUse, port)
return err
}
err = ich.Start()
if err != nil {
delete(this.portsInUse, port)
return err
}
this.portsInUse[port] = true
newIchs[idx] = ich
return nil
})
if err != nil {
log.Error("Point: Failed to create inbound connection handler: ", err)
return err
}
}
this.Lock()
this.ichs = newIchs
this.Unlock()
return nil
}
// NewPoint returns a new Point server based on given configuration.
// The server is not started at this point.
func NewPoint(pConfig *Config) (*Point, error) {
var vpoint = new(Point)
vpoint.port = pConfig.InboundConfig.Port
if vpoint.port == 0 {
vpoint.port = pConfig.Port // Backward compatibility
}
vpoint.listen = pConfig.InboundConfig.ListenOn
if pConfig.TransportConfig != nil {
pConfig.TransportConfig.Apply()
}
if pConfig.LogConfig != nil {
logConfig := pConfig.LogConfig
if len(logConfig.AccessLog) > 0 {
err := log.InitAccessLogger(logConfig.AccessLog)
if err != nil {
return nil, err
}
}
if len(logConfig.ErrorLog) > 0 {
err := log.InitErrorLogger(logConfig.ErrorLog)
if err != nil {
return nil, err
}
}
log.SetLogLevel(logConfig.LogLevel)
}
vpoint.space = app.NewSpace()
vpoint.space.BindApp(proxyman.APP_ID_INBOUND_MANAGER, vpoint)
outboundHandlerManager := proxyman.NewDefaultOutboundHandlerManager()
vpoint.space.BindApp(proxyman.APP_ID_OUTBOUND_MANAGER, outboundHandlerManager)
dnsConfig := pConfig.DNSConfig
if dnsConfig != nil {
dnsServer := dns.NewCacheServer(vpoint.space, dnsConfig)
vpoint.space.BindApp(dns.APP_ID, dnsServer)
}
routerConfig := pConfig.RouterConfig
if routerConfig != nil {
r, err := router.CreateRouter(routerConfig.Strategy, routerConfig.Settings, vpoint.space)
if err != nil {
log.Error("Failed to create router: ", err)
return nil, common.ErrBadConfiguration
}
vpoint.space.BindApp(router.APP_ID, r)
vpoint.router = r
}
vpoint.space.BindApp(dispatcher.APP_ID, dispatchers.NewDefaultDispatcher(vpoint.space))
ichConfig := pConfig.InboundConfig.Settings
ich, err := proxyregistry.CreateInboundHandler(
pConfig.InboundConfig.Protocol, vpoint.space, ichConfig, &proxy.InboundHandlerMeta{
Tag: "system.inbound",
Address: pConfig.InboundConfig.ListenOn,
Port: vpoint.port,
StreamSettings: pConfig.InboundConfig.StreamSettings,
AllowPassiveConnection: pConfig.InboundConfig.AllowPassiveConnection,
})
if err != nil {
log.Error("Failed to create inbound connection handler: ", err)
return nil, err
}
vpoint.ich = ich
ochConfig := pConfig.OutboundConfig.Settings
och, err := proxyregistry.CreateOutboundHandler(
pConfig.OutboundConfig.Protocol, vpoint.space, ochConfig, &proxy.OutboundHandlerMeta{
Tag: "system.outbound",
Address: pConfig.OutboundConfig.SendThrough,
StreamSettings: pConfig.OutboundConfig.StreamSettings,
})
if err != nil {
log.Error("Failed to create outbound connection handler: ", err)
return nil, err
}
vpoint.och = och
outboundHandlerManager.SetDefaultHandler(och)
vpoint.taggedIdh = make(map[string]InboundDetourHandler)
detours := pConfig.InboundDetours
if len(detours) > 0 {
vpoint.idh = make([]InboundDetourHandler, len(detours))
for idx, detourConfig := range detours {
allocConfig := detourConfig.Allocation
var detourHandler InboundDetourHandler
switch allocConfig.Strategy {
case AllocationStrategyAlways:
dh, err := NewInboundDetourHandlerAlways(vpoint.space, detourConfig)
if err != nil {
log.Error("Point: Failed to create detour handler: ", err)
return nil, common.ErrBadConfiguration
}
detourHandler = dh
case AllocationStrategyRandom:
dh, err := NewInboundDetourHandlerDynamic(vpoint.space, detourConfig)
if err != nil {
log.Error("Point: Failed to create detour handler: ", err)
return nil, common.ErrBadConfiguration
}
detourHandler = dh
default:
log.Error("Point: Unknown allocation strategy: ", allocConfig.Strategy)
return nil, common.ErrBadConfiguration
}
vpoint.idh[idx] = detourHandler
if len(detourConfig.Tag) > 0 {
vpoint.taggedIdh[detourConfig.Tag] = detourHandler
}
}
}
outboundDetours := pConfig.OutboundDetours
if len(outboundDetours) > 0 {
vpoint.odh = make(map[string]proxy.OutboundHandler)
for _, detourConfig := range outboundDetours {
detourHandler, err := proxyregistry.CreateOutboundHandler(
detourConfig.Protocol, vpoint.space, detourConfig.Settings, &proxy.OutboundHandlerMeta{
Tag: detourConfig.Tag,
Address: detourConfig.SendThrough,
StreamSettings: detourConfig.StreamSettings,
})
if err != nil {
log.Error("Point: Failed to create detour outbound connection handler: ", err)
return nil, err
}
vpoint.odh[detourConfig.Tag] = detourHandler
outboundHandlerManager.SetHandler(detourConfig.Tag, detourHandler)
}
}
if err := vpoint.space.Initialize(); err != nil {
return nil, err
}
return vpoint, nil
}