mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-09-05 19:44:32 -04:00
180 lines
5.2 KiB
Go
180 lines
5.2 KiB
Go
// Package point is a shell of V2Ray to run on various of systems.
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// Point server is a full functionality proxying system. It consists of an inbound and an outbound
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// connection, as well as any number of inbound and outbound detours. It provides a way internally
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// to route network packets.
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package point
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import (
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"github.com/v2ray/v2ray-core/app"
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"github.com/v2ray/v2ray-core/app/router"
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"github.com/v2ray/v2ray-core/common/log"
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v2net "github.com/v2ray/v2ray-core/common/net"
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"github.com/v2ray/v2ray-core/common/retry"
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"github.com/v2ray/v2ray-core/proxy/common/connhandler"
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"github.com/v2ray/v2ray-core/transport/ray"
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)
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// Point shell of V2Ray.
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type Point struct {
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port v2net.Port
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ich connhandler.InboundConnectionHandler
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och connhandler.OutboundConnectionHandler
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idh []*InboundDetourHandler
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odh map[string]connhandler.OutboundConnectionHandler
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router router.Router
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space *app.SpaceController
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}
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// NewPoint returns a new Point server based on given configuration.
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// The server is not started at this point.
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func NewPoint(pConfig PointConfig) (*Point, error) {
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var vpoint = new(Point)
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vpoint.port = pConfig.Port()
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if pConfig.LogConfig() != nil {
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logConfig := pConfig.LogConfig()
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if len(logConfig.AccessLog()) > 0 {
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err := log.InitAccessLogger(logConfig.AccessLog())
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if err != nil {
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return nil, err
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}
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}
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if len(logConfig.ErrorLog()) > 0 {
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err := log.InitErrorLogger(logConfig.ErrorLog())
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if err != nil {
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return nil, err
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}
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}
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log.SetLogLevel(logConfig.LogLevel())
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}
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vpoint.space = app.NewSpaceController()
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vpoint.space.Bind(vpoint)
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ichFactory := connhandler.GetInboundConnectionHandlerFactory(pConfig.InboundConfig().Protocol())
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if ichFactory == nil {
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log.Error("Unknown inbound connection handler factory %s", pConfig.InboundConfig().Protocol())
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return nil, BadConfiguration
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}
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ichConfig := pConfig.InboundConfig().Settings()
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ich, err := ichFactory.Create(vpoint.space.ForContext("vpoint-default-inbound"), ichConfig)
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if err != nil {
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log.Error("Failed to create inbound connection handler: %v", err)
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return nil, err
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}
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vpoint.ich = ich
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ochFactory := connhandler.GetOutboundConnectionHandlerFactory(pConfig.OutboundConfig().Protocol())
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if ochFactory == nil {
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log.Error("Unknown outbound connection handler factory %s", pConfig.OutboundConfig().Protocol())
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return nil, BadConfiguration
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}
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ochConfig := pConfig.OutboundConfig().Settings()
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och, err := ochFactory.Create(vpoint.space.ForContext("vpoint-default-outbound"), ochConfig)
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if err != nil {
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log.Error("Failed to create outbound connection handler: %v", err)
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return nil, err
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}
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vpoint.och = och
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detours := pConfig.InboundDetours()
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if len(detours) > 0 {
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vpoint.idh = make([]*InboundDetourHandler, len(detours))
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for idx, detourConfig := range detours {
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detourHandler := &InboundDetourHandler{
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space: vpoint.space.ForContext(detourConfig.Tag()),
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config: detourConfig,
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}
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err := detourHandler.Initialize()
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if err != nil {
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return nil, err
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}
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vpoint.idh[idx] = detourHandler
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}
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}
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outboundDetours := pConfig.OutboundDetours()
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if len(outboundDetours) > 0 {
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vpoint.odh = make(map[string]connhandler.OutboundConnectionHandler)
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for _, detourConfig := range outboundDetours {
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detourFactory := connhandler.GetOutboundConnectionHandlerFactory(detourConfig.Protocol())
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if detourFactory == nil {
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log.Error("Unknown detour outbound connection handler factory %s", detourConfig.Protocol())
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return nil, BadConfiguration
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}
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detourHandler, err := detourFactory.Create(vpoint.space.ForContext(detourConfig.Tag()), detourConfig.Settings())
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if err != nil {
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log.Error("Failed to create detour outbound connection handler: %v", err)
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return nil, err
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}
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vpoint.odh[detourConfig.Tag()] = detourHandler
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}
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}
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routerConfig := pConfig.RouterConfig()
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if routerConfig != nil {
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r, err := router.CreateRouter(routerConfig.Strategy(), routerConfig.Settings())
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if err != nil {
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log.Error("Failed to create router: %v", err)
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return nil, BadConfiguration
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}
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vpoint.router = r
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}
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return vpoint, nil
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}
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// Start starts the Point server, and return any error during the process.
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// In the case of any errors, the state of the server is unpredicatable.
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func (this *Point) Start() error {
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if this.port <= 0 {
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log.Error("Invalid port %d", this.port)
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return BadConfiguration
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}
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err := retry.Timed(100 /* times */, 100 /* ms */).On(func() error {
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err := this.ich.Listen(this.port)
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if err != nil {
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return err
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}
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log.Warning("Point server started on port %d", this.port)
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return nil
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})
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if err != nil {
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return err
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}
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for _, detourHandler := range this.idh {
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err := detourHandler.Start()
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if err != nil {
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return err
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}
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}
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return nil
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}
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// Dispatches a Packet to an OutboundConnection.
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// The packet will be passed through the router (if configured), and then sent to an outbound
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// connection with matching tag.
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func (this *Point) DispatchToOutbound(context app.Context, packet v2net.Packet) ray.InboundRay {
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direct := ray.NewRay()
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dest := packet.Destination()
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if this.router != nil {
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tag, err := this.router.TakeDetour(dest)
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if err == nil {
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handler, found := this.odh[tag]
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if found {
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go handler.Dispatch(packet, direct)
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return direct
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}
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}
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}
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go this.och.Dispatch(packet, direct)
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return direct
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}
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