v2ray-core/vpoint.go

package core

import (
	"fmt"

	v2net "github.com/v2ray/v2ray-core/net"
)

// VPoint is an single server in V2Ray system.
type VPoint struct {
	Config     VConfig
	UserSet    *VUserSet
	ichFactory InboundConnectionHandlerFactory
	ochFactory OutboundConnectionHandlerFactory
}

// NewVPoint returns a new VPoint server based on given configuration.
// The server is not started at this point.
func NewVPoint(config *VConfig) (*VPoint, error) {
	var vpoint = new(VPoint)
	vpoint.Config = *config
	vpoint.UserSet = NewVUserSet()

	for _, user := range vpoint.Config.AllowedClients {
		vpoint.UserSet.AddUser(user)
	}

	return vpoint, nil
}

type InboundConnectionHandlerFactory interface {
	Create(vPoint *VPoint) (InboundConnectionHandler, error)
}

type InboundConnectionHandler interface {
	Listen(port uint16) error
}

type OutboundConnectionHandlerFactory interface {
	Create(vPoint *VPoint, dest v2net.VAddress) (OutboundConnectionHandler, error)
}

type OutboundConnectionHandler interface {
	Start(vray OutboundVRay) error
}

// Start starts the VPoint server, and return any error during the process.
// In the case of any errors, the state of the server is unpredicatable.
func (vp *VPoint) Start() error {
	if vp.Config.Port <= 0 {
		return fmt.Errorf("Invalid port %d", vp.Config.Port)
	}
	inboundConnectionHandler, err := vp.ichFactory.Create(vp)
	if err != nil {
		return err
	}
	err = inboundConnectionHandler.Listen(vp.Config.Port)
	return nil
}

func (vp *VPoint) NewInboundConnectionAccepted(destination v2net.VAddress) InboundVRay {
	/*
	  vNextLen := len(vp.Config.VNextList)
	  if vNextLen > 0 {
	    vNextIndex := rand.Intn(vNextLen)
	    vNext := vp.Config.VNextList[vNextIndex]
	    vNextUser := dest.User
	    vNextUserLen := len(vNext.Users)
	    if vNextUserLen > 0 {
	      vNextUserIndex = rand.Intn(vNextUserLen)
	      vNextUser = vNext.Users[vNextUserIndex]
	    }
	    newDest := VDestination{"tcp", vNext.ServerAddress, vNextUser}
	    dest = newDest
	  }*/

	ray := NewVRay()
	// TODO: handle error
	och, _ := vp.ochFactory.Create(vp, destination)
	_ = och.Start(ray)
	return ray
}