mirror of https://github.com/v2ray/v2ray-core
Add trojan protocol support (#181)
* Add trojan protocol support Co-authored-by: Eken Chan <ekenchan@msn.com> Co-authored-by: Loyalsoldier <10487845+Loyalsoldier@users.noreply.github.com> Co-authored-by: GitHub Action <action@github.com>pull/2744/head
maskedeken
4 years ago
committed by
GitHub
parent
211cc67426
commit
e445d21f4b
@ -0,0 +1,135 @@
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package conf
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import (
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"strconv"
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"github.com/golang/protobuf/proto" // nolint: staticcheck
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"v2ray.com/core/common/net"
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"v2ray.com/core/common/protocol"
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"v2ray.com/core/common/serial"
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"v2ray.com/core/proxy/trojan"
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)
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// TrojanServerTarget is configuration of a single trojan server
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type TrojanServerTarget struct {
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Address *Address `json:"address"`
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Port uint16 `json:"port"`
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Password string `json:"password"`
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Email string `json:"email"`
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Level byte `json:"level"`
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}
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// TrojanClientConfig is configuration of trojan servers
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type TrojanClientConfig struct {
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Servers []*TrojanServerTarget `json:"servers"`
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}
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// Build implements Buildable
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func (c *TrojanClientConfig) Build() (proto.Message, error) {
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config := new(trojan.ClientConfig)
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if len(c.Servers) == 0 {
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return nil, newError("0 Trojan server configured.")
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}
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serverSpecs := make([]*protocol.ServerEndpoint, len(c.Servers))
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for idx, rec := range c.Servers {
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if rec.Address == nil {
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return nil, newError("Trojan server address is not set.")
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}
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if rec.Port == 0 {
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return nil, newError("Invalid Trojan port.")
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}
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if rec.Password == "" {
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return nil, newError("Trojan password is not specified.")
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}
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account := &trojan.Account{
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Password: rec.Password,
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}
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trojan := &protocol.ServerEndpoint{
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Address: rec.Address.Build(),
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Port: uint32(rec.Port),
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User: []*protocol.User{
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{
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Level: uint32(rec.Level),
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Email: rec.Email,
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Account: serial.ToTypedMessage(account),
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},
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},
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}
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serverSpecs[idx] = trojan
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}
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config.Server = serverSpecs
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return config, nil
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}
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// TrojanInboundFallback is fallback configuration
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type TrojanInboundFallback struct {
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Type string `json:"type"`
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Dest string `json:"dest"`
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}
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// TrojanUserConfig is user configuration
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type TrojanUserConfig struct {
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Password string `json:"password"`
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Level byte `json:"level"`
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Email string `json:"email"`
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}
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// TrojanServerConfig is Inbound configuration
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type TrojanServerConfig struct {
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Clients []*TrojanUserConfig `json:"clients"`
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Fallback *TrojanInboundFallback `json:"fallback"`
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}
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// Build implements Buildable
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func (c *TrojanServerConfig) Build() (proto.Message, error) {
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config := new(trojan.ServerConfig)
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if len(c.Clients) == 0 {
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return nil, newError("No trojan user settings.")
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}
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config.Users = make([]*protocol.User, len(c.Clients))
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for idx, rawUser := range c.Clients {
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user := new(protocol.User)
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account := &trojan.Account{
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Password: rawUser.Password,
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}
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user.Email = rawUser.Email
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user.Level = uint32(rawUser.Level)
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user.Account = serial.ToTypedMessage(account)
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config.Users[idx] = user
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}
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if c.Fallback != nil {
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fb := &trojan.Fallback{
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Dest: c.Fallback.Dest,
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}
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if fb.Type == "" && fb.Dest != "" {
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switch fb.Dest[0] {
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case '@', '/':
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fb.Type = "unix"
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default:
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if _, err := strconv.Atoi(fb.Dest); err == nil {
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fb.Dest = "127.0.0.1:" + fb.Dest
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}
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if _, _, err := net.SplitHostPort(fb.Dest); err == nil {
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fb.Type = "tcp"
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}
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}
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}
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if fb.Type == "" {
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return nil, newError("please fill in a valid value for trojan fallback type")
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}
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config.Fallback = fb
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}
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return config, nil
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}
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@ -0,0 +1,146 @@
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// +build !confonly
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package trojan
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import (
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"context"
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"time"
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"v2ray.com/core"
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"v2ray.com/core/common"
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"v2ray.com/core/common/buf"
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"v2ray.com/core/common/net"
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"v2ray.com/core/common/protocol"
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"v2ray.com/core/common/retry"
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"v2ray.com/core/common/session"
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"v2ray.com/core/common/signal"
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"v2ray.com/core/common/task"
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"v2ray.com/core/features/policy"
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"v2ray.com/core/transport"
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"v2ray.com/core/transport/internet"
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)
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// Client is a inbound handler for trojan protocol
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type Client struct {
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serverPicker protocol.ServerPicker
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policyManager policy.Manager
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}
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// NewClient create a new trojan client.
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func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {
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serverList := protocol.NewServerList()
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for _, rec := range config.Server {
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s, err := protocol.NewServerSpecFromPB(rec)
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if err != nil {
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return nil, newError("failed to parse server spec").Base(err)
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}
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serverList.AddServer(s)
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}
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if serverList.Size() == 0 {
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return nil, newError("0 server")
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}
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v := core.MustFromContext(ctx)
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client := &Client{
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serverPicker: protocol.NewRoundRobinServerPicker(serverList),
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policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
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}
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return client, nil
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}
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// Process implements OutboundHandler.Process().
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func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error { // nolint: funlen
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outbound := session.OutboundFromContext(ctx)
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if outbound == nil || !outbound.Target.IsValid() {
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return newError("target not specified")
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}
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destination := outbound.Target
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network := destination.Network
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var server *protocol.ServerSpec
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var conn internet.Connection
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err := retry.ExponentialBackoff(5, 100).On(func() error { // nolint: gomnd
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server = c.serverPicker.PickServer()
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rawConn, err := dialer.Dial(ctx, server.Destination())
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if err != nil {
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return err
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}
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conn = rawConn
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return nil
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})
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if err != nil {
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return newError("failed to find an available destination").AtWarning().Base(err)
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}
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newError("tunneling request to ", destination, " via ", server.Destination()).WriteToLog(session.ExportIDToError(ctx))
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defer conn.Close()
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user := server.PickUser()
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account, ok := user.Account.(*MemoryAccount)
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if !ok {
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return newError("user account is not valid")
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}
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sessionPolicy := c.policyManager.ForLevel(user.Level)
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ctx, cancel := context.WithCancel(ctx)
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timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
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postRequest := func() error {
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defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
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var bodyWriter buf.Writer
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bufferWriter := buf.NewBufferedWriter(buf.NewWriter(conn))
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connWriter := &ConnWriter{Writer: bufferWriter, Target: destination, Account: account}
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if destination.Network == net.Network_UDP {
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bodyWriter = &PacketWriter{Writer: connWriter, Target: destination}
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} else {
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bodyWriter = connWriter
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}
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// write some request payload to buffer
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if err = buf.CopyOnceTimeout(link.Reader, bodyWriter, time.Millisecond*100); err != nil && err != buf.ErrNotTimeoutReader && err != buf.ErrReadTimeout { // nolint: lll,gomnd
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return newError("failed to write A reqeust payload").Base(err).AtWarning()
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}
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// Flush; bufferWriter.WriteMultiBufer now is bufferWriter.writer.WriteMultiBuffer
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if err = bufferWriter.SetBuffered(false); err != nil {
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return newError("failed to flush payload").Base(err).AtWarning()
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}
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if err = buf.Copy(link.Reader, bodyWriter, buf.UpdateActivity(timer)); err != nil {
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return newError("failed to transfer request payload").Base(err).AtInfo()
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}
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return nil
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}
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getResponse := func() error {
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defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
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var reader buf.Reader
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if network == net.Network_UDP {
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reader = &PacketReader{
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Reader: conn,
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}
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} else {
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reader = buf.NewReader(conn)
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}
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return buf.Copy(reader, link.Writer, buf.UpdateActivity(timer))
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}
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var responseDoneAndCloseWriter = task.OnSuccess(getResponse, task.Close(link.Writer))
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if err := task.Run(ctx, postRequest, responseDoneAndCloseWriter); err != nil {
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return newError("connection ends").Base(err)
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}
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return nil
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}
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func init() {
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common.Must(common.RegisterConfig((*ClientConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) { // nolint: lll
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return NewClient(ctx, config.(*ClientConfig))
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}))
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}
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@ -0,0 +1,50 @@
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package trojan
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import (
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"crypto/sha256"
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"encoding/hex"
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fmt "fmt"
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"v2ray.com/core/common"
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"v2ray.com/core/common/protocol"
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)
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// MemoryAccount is an account type converted from Account.
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type MemoryAccount struct {
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Password string
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Key []byte
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}
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// AsAccount implements protocol.AsAccount.
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func (a *Account) AsAccount() (protocol.Account, error) {
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password := a.GetPassword()
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key := hexSha224(password)
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return &MemoryAccount{
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Password: password,
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Key: key,
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}, nil
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}
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// Equals implements protocol.Account.Equals().
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func (a *MemoryAccount) Equals(another protocol.Account) bool {
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if account, ok := another.(*MemoryAccount); ok {
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return a.Password == account.Password
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}
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return false
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}
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func hexSha224(password string) []byte {
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buf := make([]byte, 56)
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hash := sha256.New224()
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common.Must2(hash.Write([]byte(password)))
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hex.Encode(buf, hash.Sum(nil))
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return buf
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}
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func hexString(data []byte) string {
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str := ""
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for _, v := range data {
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str += fmt.Sprintf("%02x", v)
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}
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return str
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}
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@ -0,0 +1,376 @@
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// Code generated by protoc-gen-go. DO NOT EDIT.
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// versions:
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// protoc-gen-go v1.25.0
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// protoc v3.13.0
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// source: proxy/trojan/config.proto
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package trojan
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import (
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proto "github.com/golang/protobuf/proto"
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protoreflect "google.golang.org/protobuf/reflect/protoreflect"
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protoimpl "google.golang.org/protobuf/runtime/protoimpl"
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reflect "reflect"
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sync "sync"
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protocol "v2ray.com/core/common/protocol"
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)
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const (
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// Verify that this generated code is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
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// Verify that runtime/protoimpl is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
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)
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// This is a compile-time assertion that a sufficiently up-to-date version
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// of the legacy proto package is being used.
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const _ = proto.ProtoPackageIsVersion4
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type Account struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Password string `protobuf:"bytes,1,opt,name=password,proto3" json:"password,omitempty"`
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}
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func (x *Account) Reset() {
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*x = Account{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_trojan_config_proto_msgTypes[0]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *Account) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*Account) ProtoMessage() {}
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func (x *Account) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_trojan_config_proto_msgTypes[0]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use Account.ProtoReflect.Descriptor instead.
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func (*Account) Descriptor() ([]byte, []int) {
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return file_proxy_trojan_config_proto_rawDescGZIP(), []int{0}
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}
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func (x *Account) GetPassword() string {
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if x != nil {
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return x.Password
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}
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return ""
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}
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type Fallback struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
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Dest string `protobuf:"bytes,2,opt,name=dest,proto3" json:"dest,omitempty"`
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}
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func (x *Fallback) Reset() {
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*x = Fallback{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_trojan_config_proto_msgTypes[1]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *Fallback) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*Fallback) ProtoMessage() {}
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func (x *Fallback) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_trojan_config_proto_msgTypes[1]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use Fallback.ProtoReflect.Descriptor instead.
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func (*Fallback) Descriptor() ([]byte, []int) {
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return file_proxy_trojan_config_proto_rawDescGZIP(), []int{1}
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}
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func (x *Fallback) GetType() string {
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if x != nil {
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return x.Type
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}
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return ""
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}
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func (x *Fallback) GetDest() string {
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if x != nil {
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return x.Dest
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}
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return ""
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}
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type ClientConfig struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Server []*protocol.ServerEndpoint `protobuf:"bytes,1,rep,name=server,proto3" json:"server,omitempty"`
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}
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func (x *ClientConfig) Reset() {
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*x = ClientConfig{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_trojan_config_proto_msgTypes[2]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *ClientConfig) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*ClientConfig) ProtoMessage() {}
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func (x *ClientConfig) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_trojan_config_proto_msgTypes[2]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use ClientConfig.ProtoReflect.Descriptor instead.
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func (*ClientConfig) Descriptor() ([]byte, []int) {
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return file_proxy_trojan_config_proto_rawDescGZIP(), []int{2}
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}
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func (x *ClientConfig) GetServer() []*protocol.ServerEndpoint {
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if x != nil {
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return x.Server
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}
|
||||
return nil
|
||||
}
|
||||
|
||||
type ServerConfig struct {
|
||||
state protoimpl.MessageState
|
||||
sizeCache protoimpl.SizeCache
|
||||
unknownFields protoimpl.UnknownFields
|
||||
|
||||
Users []*protocol.User `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty"`
|
||||
Fallback *Fallback `protobuf:"bytes,2,opt,name=fallback,proto3" json:"fallback,omitempty"`
|
||||
}
|
||||
|
||||
func (x *ServerConfig) Reset() {
|
||||
*x = ServerConfig{}
|
||||
if protoimpl.UnsafeEnabled {
|
||||
mi := &file_proxy_trojan_config_proto_msgTypes[3]
|
||||
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
|
||||
ms.StoreMessageInfo(mi)
|
||||
}
|
||||
}
|
||||
|
||||
func (x *ServerConfig) String() string {
|
||||
return protoimpl.X.MessageStringOf(x)
|
||||
}
|
||||
|
||||
func (*ServerConfig) ProtoMessage() {}
|
||||
|
||||
func (x *ServerConfig) ProtoReflect() protoreflect.Message {
|
||||
mi := &file_proxy_trojan_config_proto_msgTypes[3]
|
||||
if protoimpl.UnsafeEnabled && x != nil {
|
||||
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
|
||||
if ms.LoadMessageInfo() == nil {
|
||||
ms.StoreMessageInfo(mi)
|
||||
}
|
||||
return ms
|
||||
}
|
||||
return mi.MessageOf(x)
|
||||
}
|
||||
|
||||
// Deprecated: Use ServerConfig.ProtoReflect.Descriptor instead.
|
||||
func (*ServerConfig) Descriptor() ([]byte, []int) {
|
||||
return file_proxy_trojan_config_proto_rawDescGZIP(), []int{3}
|
||||
}
|
||||
|
||||
func (x *ServerConfig) GetUsers() []*protocol.User {
|
||||
if x != nil {
|
||||
return x.Users
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (x *ServerConfig) GetFallback() *Fallback {
|
||||
if x != nil {
|
||||
return x.Fallback
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var File_proxy_trojan_config_proto protoreflect.FileDescriptor
|
||||
|
||||
var file_proxy_trojan_config_proto_rawDesc = []byte{
|
||||
0x0a, 0x19, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x74, 0x72, 0x6f, 0x6a, 0x61, 0x6e, 0x2f, 0x63,
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0x0a, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x2a,
|
||||
0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x6d,
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0x28, 0x0b, 0x32, 0x20, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e,
|
||||
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|
||||
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|
||||
0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x21, 0x2e,
|
||||
0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79,
|
||||
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|
||||
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|
||||
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|
||||
0x78, 0x79, 0x2e, 0x74, 0x72, 0x6f, 0x6a, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x1b, 0x76, 0x32, 0x72,
|
||||
0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78,
|
||||
0x79, 0x2f, 0x74, 0x72, 0x6f, 0x6a, 0x61, 0x6e, 0xaa, 0x02, 0x17, 0x56, 0x32, 0x52, 0x61, 0x79,
|
||||
0x2e, 0x43, 0x6f, 0x72, 0x65, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x54, 0x72, 0x6f, 0x6a,
|
||||
0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
|
||||
}
|
||||
|
||||
var (
|
||||
file_proxy_trojan_config_proto_rawDescOnce sync.Once
|
||||
file_proxy_trojan_config_proto_rawDescData = file_proxy_trojan_config_proto_rawDesc
|
||||
)
|
||||
|
||||
func file_proxy_trojan_config_proto_rawDescGZIP() []byte {
|
||||
file_proxy_trojan_config_proto_rawDescOnce.Do(func() {
|
||||
file_proxy_trojan_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_proxy_trojan_config_proto_rawDescData)
|
||||
})
|
||||
return file_proxy_trojan_config_proto_rawDescData
|
||||
}
|
||||
|
||||
var file_proxy_trojan_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
|
||||
var file_proxy_trojan_config_proto_goTypes = []interface{}{
|
||||
(*Account)(nil), // 0: v2ray.core.proxy.trojan.Account
|
||||
(*Fallback)(nil), // 1: v2ray.core.proxy.trojan.Fallback
|
||||
(*ClientConfig)(nil), // 2: v2ray.core.proxy.trojan.ClientConfig
|
||||
(*ServerConfig)(nil), // 3: v2ray.core.proxy.trojan.ServerConfig
|
||||
(*protocol.ServerEndpoint)(nil), // 4: v2ray.core.common.protocol.ServerEndpoint
|
||||
(*protocol.User)(nil), // 5: v2ray.core.common.protocol.User
|
||||
}
|
||||
var file_proxy_trojan_config_proto_depIdxs = []int32{
|
||||
4, // 0: v2ray.core.proxy.trojan.ClientConfig.server:type_name -> v2ray.core.common.protocol.ServerEndpoint
|
||||
5, // 1: v2ray.core.proxy.trojan.ServerConfig.users:type_name -> v2ray.core.common.protocol.User
|
||||
1, // 2: v2ray.core.proxy.trojan.ServerConfig.fallback:type_name -> v2ray.core.proxy.trojan.Fallback
|
||||
3, // [3:3] is the sub-list for method output_type
|
||||
3, // [3:3] is the sub-list for method input_type
|
||||
3, // [3:3] is the sub-list for extension type_name
|
||||
3, // [3:3] is the sub-list for extension extendee
|
||||
0, // [0:3] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_proxy_trojan_config_proto_init() }
|
||||
func file_proxy_trojan_config_proto_init() {
|
||||
if File_proxy_trojan_config_proto != nil {
|
||||
return
|
||||
}
|
||||
if !protoimpl.UnsafeEnabled {
|
||||
file_proxy_trojan_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
|
||||
switch v := v.(*Account); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
file_proxy_trojan_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
|
||||
switch v := v.(*Fallback); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
file_proxy_trojan_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
|
||||
switch v := v.(*ClientConfig); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
file_proxy_trojan_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
|
||||
switch v := v.(*ServerConfig); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_proxy_trojan_config_proto_rawDesc,
|
||||
NumEnums: 0,
|
||||
NumMessages: 4,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
GoTypes: file_proxy_trojan_config_proto_goTypes,
|
||||
DependencyIndexes: file_proxy_trojan_config_proto_depIdxs,
|
||||
MessageInfos: file_proxy_trojan_config_proto_msgTypes,
|
||||
}.Build()
|
||||
File_proxy_trojan_config_proto = out.File
|
||||
file_proxy_trojan_config_proto_rawDesc = nil
|
||||
file_proxy_trojan_config_proto_goTypes = nil
|
||||
file_proxy_trojan_config_proto_depIdxs = nil
|
||||
}
|
||||
@ -0,0 +1,28 @@
|
||||
syntax = "proto3";
|
||||
|
||||
package v2ray.core.proxy.trojan;
|
||||
option csharp_namespace = "V2Ray.Core.Proxy.Trojan";
|
||||
option go_package = "v2ray.com/core/proxy/trojan";
|
||||
option java_package = "com.v2ray.core.proxy.trojan";
|
||||
option java_multiple_files = true;
|
||||
|
||||
import "common/protocol/user.proto";
|
||||
import "common/protocol/server_spec.proto";
|
||||
|
||||
message Account {
|
||||
string password = 1;
|
||||
}
|
||||
|
||||
message Fallback {
|
||||
string type = 1;
|
||||
string dest = 2;
|
||||
}
|
||||
|
||||
message ClientConfig {
|
||||
repeated v2ray.core.common.protocol.ServerEndpoint server = 1;
|
||||
}
|
||||
|
||||
message ServerConfig {
|
||||
repeated v2ray.core.common.protocol.User users = 1;
|
||||
Fallback fallback = 2;
|
||||
}
|
||||
@ -0,0 +1,9 @@
|
||||
package trojan
|
||||
|
||||
import "v2ray.com/core/common/errors"
|
||||
|
||||
type errPathObjHolder struct{}
|
||||
|
||||
func newError(values ...interface{}) *errors.Error {
|
||||
return errors.New(values...).WithPathObj(errPathObjHolder{})
|
||||
}
|
||||
@ -0,0 +1,282 @@
|
||||
package trojan
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"io"
|
||||
|
||||
"v2ray.com/core/common/buf"
|
||||
"v2ray.com/core/common/net"
|
||||
"v2ray.com/core/common/protocol"
|
||||
)
|
||||
|
||||
var (
|
||||
crlf = []byte{'\r', '\n'}
|
||||
|
||||
addrParser = protocol.NewAddressParser(
|
||||
protocol.AddressFamilyByte(0x01, net.AddressFamilyIPv4), // nolint: gomnd
|
||||
protocol.AddressFamilyByte(0x04, net.AddressFamilyIPv6), // nolint: gomnd
|
||||
protocol.AddressFamilyByte(0x03, net.AddressFamilyDomain), // nolint: gomnd
|
||||
)
|
||||
)
|
||||
|
||||
const (
|
||||
maxLength = 8192
|
||||
|
||||
commandTCP byte = 1
|
||||
commandUDP byte = 3
|
||||
)
|
||||
|
||||
// ConnWriter is TCP Connection Writer Wrapper for trojan protocol
|
||||
type ConnWriter struct {
|
||||
io.Writer
|
||||
Target net.Destination
|
||||
Account *MemoryAccount
|
||||
headerSent bool
|
||||
}
|
||||
|
||||
// Write implements io.Writer
|
||||
func (c *ConnWriter) Write(p []byte) (n int, err error) {
|
||||
if !c.headerSent {
|
||||
if err := c.writeHeader(); err != nil {
|
||||
return 0, newError("failed to write request header").Base(err)
|
||||
}
|
||||
}
|
||||
|
||||
return c.Writer.Write(p)
|
||||
}
|
||||
|
||||
// WriteMultiBuffer implements buf.Writer
|
||||
func (c *ConnWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
|
||||
defer buf.ReleaseMulti(mb)
|
||||
|
||||
for _, b := range mb {
|
||||
if !b.IsEmpty() {
|
||||
if _, err := c.Write(b.Bytes()); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (c *ConnWriter) writeHeader() error {
|
||||
buffer := buf.StackNew()
|
||||
defer buffer.Release()
|
||||
|
||||
command := commandTCP
|
||||
if c.Target.Network == net.Network_UDP {
|
||||
command = commandUDP
|
||||
}
|
||||
|
||||
if _, err := buffer.Write(c.Account.Key); err != nil {
|
||||
return err
|
||||
}
|
||||
if _, err := buffer.Write(crlf); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := buffer.WriteByte(command); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := addrParser.WriteAddressPort(&buffer, c.Target.Address, c.Target.Port); err != nil {
|
||||
return err
|
||||
}
|
||||
if _, err := buffer.Write(crlf); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err := c.Writer.Write(buffer.Bytes())
|
||||
if err == nil {
|
||||
c.headerSent = true
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// PacketWriter UDP Connection Writer Wrapper for trojan protocol
|
||||
type PacketWriter struct {
|
||||
io.Writer
|
||||
Target net.Destination
|
||||
}
|
||||
|
||||
// WriteMultiBuffer implements buf.Writer
|
||||
func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
|
||||
b := make([]byte, maxLength)
|
||||
for !mb.IsEmpty() {
|
||||
var length int
|
||||
mb, length = buf.SplitBytes(mb, b)
|
||||
if _, err := w.writePacket(b[:length], w.Target); err != nil {
|
||||
buf.ReleaseMulti(mb)
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// WriteMultiBufferWithMetadata writes udp packet with destination specified
|
||||
func (w *PacketWriter) WriteMultiBufferWithMetadata(mb buf.MultiBuffer, dest net.Destination) error {
|
||||
b := make([]byte, maxLength)
|
||||
for !mb.IsEmpty() {
|
||||
var length int
|
||||
mb, length = buf.SplitBytes(mb, b)
|
||||
if _, err := w.writePacket(b[:length], dest); err != nil {
|
||||
buf.ReleaseMulti(mb)
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (w *PacketWriter) writePacket(payload []byte, dest net.Destination) (int, error) { // nolint: unparam
|
||||
buffer := buf.StackNew()
|
||||
defer buffer.Release()
|
||||
|
||||
length := len(payload)
|
||||
lengthBuf := [2]byte{}
|
||||
binary.BigEndian.PutUint16(lengthBuf[:], uint16(length))
|
||||
if err := addrParser.WriteAddressPort(&buffer, dest.Address, dest.Port); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
if _, err := buffer.Write(lengthBuf[:]); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
if _, err := buffer.Write(crlf); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
if _, err := buffer.Write(payload); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
_, err := w.Write(buffer.Bytes())
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
return length, nil
|
||||
}
|
||||
|
||||
// ConnReader is TCP Connection Reader Wrapper for trojan protocol
|
||||
type ConnReader struct {
|
||||
io.Reader
|
||||
Target net.Destination
|
||||
headerParsed bool
|
||||
}
|
||||
|
||||
// ParseHeader parses the trojan protocol header
|
||||
func (c *ConnReader) ParseHeader() error {
|
||||
var crlf [2]byte
|
||||
var command [1]byte
|
||||
var hash [56]byte
|
||||
if _, err := io.ReadFull(c.Reader, hash[:]); err != nil {
|
||||
return newError("failed to read user hash").Base(err)
|
||||
}
|
||||
|
||||
if _, err := io.ReadFull(c.Reader, crlf[:]); err != nil {
|
||||
return newError("failed to read crlf").Base(err)
|
||||
}
|
||||
|
||||
if _, err := io.ReadFull(c.Reader, command[:]); err != nil {
|
||||
return newError("failed to read command").Base(err)
|
||||
}
|
||||
|
||||
network := net.Network_TCP
|
||||
if command[0] == commandUDP {
|
||||
network = net.Network_UDP
|
||||
}
|
||||
|
||||
addr, port, err := addrParser.ReadAddressPort(nil, c.Reader)
|
||||
if err != nil {
|
||||
return newError("failed to read address and port").Base(err)
|
||||
}
|
||||
c.Target = net.Destination{Network: network, Address: addr, Port: port}
|
||||
|
||||
if _, err := io.ReadFull(c.Reader, crlf[:]); err != nil {
|
||||
return newError("failed to read crlf").Base(err)
|
||||
}
|
||||
|
||||
c.headerParsed = true
|
||||
return nil
|
||||
}
|
||||
|
||||
// Read implements io.Reader
|
||||
func (c *ConnReader) Read(p []byte) (int, error) {
|
||||
if !c.headerParsed {
|
||||
if err := c.ParseHeader(); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
}
|
||||
|
||||
return c.Reader.Read(p)
|
||||
}
|
||||
|
||||
// ReadMultiBuffer implements buf.Reader
|
||||
func (c *ConnReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
|
||||
b := buf.New()
|
||||
_, err := b.ReadFrom(c)
|
||||
return buf.MultiBuffer{b}, err
|
||||
}
|
||||
|
||||
// PacketPayload combines udp payload and destination
|
||||
type PacketPayload struct {
|
||||
Target net.Destination
|
||||
Buffer buf.MultiBuffer
|
||||
}
|
||||
|
||||
// PacketReader is UDP Connection Reader Wrapper for trojan protocol
|
||||
type PacketReader struct {
|
||||
io.Reader
|
||||
}
|
||||
|
||||
// ReadMultiBuffer implements buf.Reader
|
||||
func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
|
||||
p, err := r.ReadMultiBufferWithMetadata()
|
||||
if p != nil {
|
||||
return p.Buffer, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// ReadMultiBufferWithMetadata reads udp packet with destination
|
||||
func (r *PacketReader) ReadMultiBufferWithMetadata() (*PacketPayload, error) {
|
||||
addr, port, err := addrParser.ReadAddressPort(nil, r)
|
||||
if err != nil {
|
||||
return nil, newError("failed to read address and port").Base(err)
|
||||
}
|
||||
|
||||
var lengthBuf [2]byte
|
||||
if _, err := io.ReadFull(r, lengthBuf[:]); err != nil {
|
||||
return nil, newError("failed to read payload length").Base(err)
|
||||
}
|
||||
|
||||
remain := int(binary.BigEndian.Uint16(lengthBuf[:]))
|
||||
if remain > maxLength {
|
||||
return nil, newError("oversize payload")
|
||||
}
|
||||
|
||||
var crlf [2]byte
|
||||
if _, err := io.ReadFull(r, crlf[:]); err != nil {
|
||||
return nil, newError("failed to read crlf").Base(err)
|
||||
}
|
||||
|
||||
dest := net.UDPDestination(addr, port)
|
||||
var mb buf.MultiBuffer
|
||||
for remain > 0 {
|
||||
length := buf.Size
|
||||
if remain < length {
|
||||
length = remain
|
||||
}
|
||||
|
||||
b := buf.New()
|
||||
mb = append(mb, b)
|
||||
n, err := b.ReadFullFrom(r, int32(length))
|
||||
if err != nil {
|
||||
buf.ReleaseMulti(mb)
|
||||
return nil, newError("failed to read payload").Base(err)
|
||||
}
|
||||
|
||||
remain -= int(n)
|
||||
}
|
||||
|
||||
return &PacketPayload{Target: dest, Buffer: mb}, nil
|
||||
}
|
||||
@ -0,0 +1,91 @@
|
||||
package trojan_test
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/google/go-cmp/cmp"
|
||||
"v2ray.com/core/common"
|
||||
"v2ray.com/core/common/buf"
|
||||
"v2ray.com/core/common/net"
|
||||
"v2ray.com/core/common/protocol"
|
||||
. "v2ray.com/core/proxy/trojan"
|
||||
)
|
||||
|
||||
func toAccount(a *Account) protocol.Account {
|
||||
account, err := a.AsAccount()
|
||||
common.Must(err)
|
||||
return account
|
||||
}
|
||||
|
||||
func TestTCPRequest(t *testing.T) {
|
||||
user := &protocol.MemoryUser{
|
||||
Email: "love@v2ray.com",
|
||||
Account: toAccount(&Account{
|
||||
Password: "password",
|
||||
}),
|
||||
}
|
||||
payload := []byte("test string")
|
||||
data := buf.New()
|
||||
common.Must2(data.Write(payload))
|
||||
|
||||
buffer := buf.New()
|
||||
defer buffer.Release()
|
||||
|
||||
destination := net.Destination{Network: net.Network_TCP, Address: net.LocalHostIP, Port: 1234}
|
||||
writer := &ConnWriter{Writer: buffer, Target: destination, Account: user.Account.(*MemoryAccount)}
|
||||
common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{data}))
|
||||
|
||||
reader := &ConnReader{Reader: buffer}
|
||||
common.Must(reader.ParseHeader())
|
||||
|
||||
if r := cmp.Diff(reader.Target, destination); r != "" {
|
||||
t.Error("destination: ", r)
|
||||
}
|
||||
|
||||
decodedData, err := reader.ReadMultiBuffer()
|
||||
common.Must(err)
|
||||
if r := cmp.Diff(decodedData[0].Bytes(), payload); r != "" {
|
||||
t.Error("data: ", r)
|
||||
}
|
||||
}
|
||||
|
||||
func TestUDPRequest(t *testing.T) {
|
||||
user := &protocol.MemoryUser{
|
||||
Email: "love@v2ray.com",
|
||||
Account: toAccount(&Account{
|
||||
Password: "password",
|
||||
}),
|
||||
}
|
||||
payload := []byte("test string")
|
||||
data := buf.New()
|
||||
common.Must2(data.Write(payload))
|
||||
|
||||
buffer := buf.New()
|
||||
defer buffer.Release()
|
||||
|
||||
destination := net.Destination{Network: net.Network_UDP, Address: net.LocalHostIP, Port: 1234}
|
||||
writer := &PacketWriter{Writer: &ConnWriter{Writer: buffer, Target: destination, Account: user.Account.(*MemoryAccount)}, Target: destination}
|
||||
common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{data}))
|
||||
|
||||
connReader := &ConnReader{Reader: buffer}
|
||||
common.Must(connReader.ParseHeader())
|
||||
|
||||
packetReader := &PacketReader{Reader: connReader}
|
||||
p, err := packetReader.ReadMultiBufferWithMetadata()
|
||||
common.Must(err)
|
||||
|
||||
if p.Buffer.IsEmpty() {
|
||||
t.Error("no request data")
|
||||
}
|
||||
|
||||
if r := cmp.Diff(p.Target, destination); r != "" {
|
||||
t.Error("destination: ", r)
|
||||
}
|
||||
|
||||
mb, decoded := buf.SplitFirst(p.Buffer)
|
||||
buf.ReleaseMulti(mb)
|
||||
|
||||
if r := cmp.Diff(decoded.Bytes(), payload); r != "" {
|
||||
t.Error("data: ", r)
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,290 @@
|
||||
// +build !confonly
|
||||
|
||||
package trojan
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"time"
|
||||
|
||||
"v2ray.com/core"
|
||||
"v2ray.com/core/common"
|
||||
"v2ray.com/core/common/buf"
|
||||
"v2ray.com/core/common/errors"
|
||||
"v2ray.com/core/common/log"
|
||||
"v2ray.com/core/common/net"
|
||||
"v2ray.com/core/common/protocol"
|
||||
udp_proto "v2ray.com/core/common/protocol/udp"
|
||||
"v2ray.com/core/common/retry"
|
||||
"v2ray.com/core/common/session"
|
||||
"v2ray.com/core/common/signal"
|
||||
"v2ray.com/core/common/task"
|
||||
"v2ray.com/core/features/policy"
|
||||
"v2ray.com/core/features/routing"
|
||||
"v2ray.com/core/transport/internet"
|
||||
"v2ray.com/core/transport/internet/udp"
|
||||
)
|
||||
|
||||
func init() {
|
||||
common.Must(common.RegisterConfig((*ServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) { // nolint: lll
|
||||
return NewServer(ctx, config.(*ServerConfig))
|
||||
}))
|
||||
}
|
||||
|
||||
// Server is an inbound connection handler that handles messages in trojan protocol.
|
||||
type Server struct {
|
||||
validator *Validator
|
||||
policyManager policy.Manager
|
||||
config *ServerConfig
|
||||
}
|
||||
|
||||
// NewServer creates a new trojan inbound handler.
|
||||
func NewServer(ctx context.Context, config *ServerConfig) (*Server, error) {
|
||||
validator := new(Validator)
|
||||
for _, user := range config.Users {
|
||||
u, err := user.ToMemoryUser()
|
||||
if err != nil {
|
||||
return nil, newError("failed to get trojan user").Base(err).AtError()
|
||||
}
|
||||
|
||||
if err := validator.Add(u); err != nil {
|
||||
return nil, newError("failed to add user").Base(err).AtError()
|
||||
}
|
||||
}
|
||||
|
||||
v := core.MustFromContext(ctx)
|
||||
server := &Server{
|
||||
policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
|
||||
validator: validator,
|
||||
config: config,
|
||||
}
|
||||
|
||||
return server, nil
|
||||
}
|
||||
|
||||
// Network implements proxy.Inbound.Network().
|
||||
func (s *Server) Network() []net.Network {
|
||||
return []net.Network{net.Network_TCP}
|
||||
}
|
||||
|
||||
// Process implements proxy.Inbound.Process().
|
||||
func (s *Server) Process(ctx context.Context, network net.Network, conn internet.Connection, dispatcher routing.Dispatcher) error { // nolint: funlen,lll
|
||||
sessionPolicy := s.policyManager.ForLevel(0)
|
||||
if err := conn.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {
|
||||
return newError("unable to set read deadline").Base(err).AtWarning()
|
||||
}
|
||||
|
||||
buffer := buf.New()
|
||||
defer buffer.Release()
|
||||
|
||||
n, err := buffer.ReadFrom(conn)
|
||||
if err != nil {
|
||||
return newError("failed to read first request").Base(err)
|
||||
}
|
||||
|
||||
bufferedReader := &buf.BufferedReader{
|
||||
Reader: buf.NewReader(conn),
|
||||
Buffer: buf.MultiBuffer{buffer},
|
||||
}
|
||||
|
||||
var user *protocol.MemoryUser
|
||||
fallbackEnabled := s.config.Fallback != nil
|
||||
shouldFallback := false
|
||||
if n < 56 { // nolint: gomnd
|
||||
// invalid protocol
|
||||
log.Record(&log.AccessMessage{
|
||||
From: conn.RemoteAddr(),
|
||||
To: "",
|
||||
Status: log.AccessRejected,
|
||||
Reason: newError("not trojan protocol"),
|
||||
})
|
||||
|
||||
shouldFallback = true
|
||||
} else {
|
||||
user = s.validator.Get(hexString(buffer.BytesTo(56))) // nolint: gomnd
|
||||
if user == nil {
|
||||
// invalid user, let's fallback
|
||||
log.Record(&log.AccessMessage{
|
||||
From: conn.RemoteAddr(),
|
||||
To: "",
|
||||
Status: log.AccessRejected,
|
||||
Reason: newError("not a valid user"),
|
||||
})
|
||||
|
||||
shouldFallback = true
|
||||
}
|
||||
}
|
||||
|
||||
if fallbackEnabled && shouldFallback {
|
||||
return s.fallback(ctx, sessionPolicy, bufferedReader, buf.NewWriter(conn))
|
||||
} else if shouldFallback {
|
||||
return newError("invalid protocol or invalid user")
|
||||
}
|
||||
|
||||
clientReader := &ConnReader{Reader: bufferedReader}
|
||||
if err := clientReader.ParseHeader(); err != nil {
|
||||
log.Record(&log.AccessMessage{
|
||||
From: conn.RemoteAddr(),
|
||||
To: "",
|
||||
Status: log.AccessRejected,
|
||||
Reason: err,
|
||||
})
|
||||
return newError("failed to create request from: ", conn.RemoteAddr()).Base(err)
|
||||
}
|
||||
|
||||
destination := clientReader.Target
|
||||
if err := conn.SetReadDeadline(time.Time{}); err != nil {
|
||||
return newError("unable to set read deadline").Base(err).AtWarning()
|
||||
}
|
||||
|
||||
inbound := session.InboundFromContext(ctx)
|
||||
if inbound == nil {
|
||||
panic("no inbound metadata")
|
||||
}
|
||||
inbound.User = user
|
||||
sessionPolicy = s.policyManager.ForLevel(user.Level)
|
||||
|
||||
if destination.Network == net.Network_UDP { // handle udp request
|
||||
return s.handleUDPPayload(ctx, &PacketReader{Reader: clientReader}, &PacketWriter{Writer: conn}, dispatcher)
|
||||
}
|
||||
|
||||
// handle tcp request
|
||||
|
||||
log.ContextWithAccessMessage(ctx, &log.AccessMessage{
|
||||
From: conn.RemoteAddr(),
|
||||
To: destination,
|
||||
Status: log.AccessAccepted,
|
||||
Reason: "",
|
||||
Email: user.Email,
|
||||
})
|
||||
|
||||
newError("received request for ", destination).WriteToLog(session.ExportIDToError(ctx))
|
||||
return s.handleConnection(ctx, sessionPolicy, destination, clientReader, buf.NewWriter(conn), dispatcher)
|
||||
}
|
||||
|
||||
func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReader, clientWriter *PacketWriter, dispatcher routing.Dispatcher) error { // nolint: lll
|
||||
udpServer := udp.NewDispatcher(dispatcher, func(ctx context.Context, packet *udp_proto.Packet) {
|
||||
common.Must(clientWriter.WriteMultiBufferWithMetadata(buf.MultiBuffer{packet.Payload}, packet.Source))
|
||||
})
|
||||
|
||||
inbound := session.InboundFromContext(ctx)
|
||||
user := inbound.User
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return nil
|
||||
default:
|
||||
p, err := clientReader.ReadMultiBufferWithMetadata()
|
||||
if err != nil {
|
||||
if errors.Cause(err) != io.EOF {
|
||||
return newError("unexpected EOF").Base(err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
log.ContextWithAccessMessage(ctx, &log.AccessMessage{
|
||||
From: inbound.Source,
|
||||
To: p.Target,
|
||||
Status: log.AccessAccepted,
|
||||
Reason: "",
|
||||
Email: user.Email,
|
||||
})
|
||||
newError("tunnelling request to ", p.Target).WriteToLog(session.ExportIDToError(ctx))
|
||||
|
||||
for _, b := range p.Buffer {
|
||||
udpServer.Dispatch(ctx, p.Target, b)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (s *Server) handleConnection(ctx context.Context, sessionPolicy policy.Session,
|
||||
destination net.Destination,
|
||||
clientReader buf.Reader,
|
||||
clientWriter buf.Writer, dispatcher routing.Dispatcher) error {
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
|
||||
ctx = policy.ContextWithBufferPolicy(ctx, sessionPolicy.Buffer)
|
||||
|
||||
link, err := dispatcher.Dispatch(ctx, destination)
|
||||
if err != nil {
|
||||
return newError("failed to dispatch request to ", destination).Base(err)
|
||||
}
|
||||
|
||||
requestDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
|
||||
|
||||
if err := buf.Copy(clientReader, link.Writer, buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to transfer request").Base(err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
responseDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
|
||||
|
||||
if err := buf.Copy(link.Reader, clientWriter, buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to write response").Base(err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var requestDonePost = task.OnSuccess(requestDone, task.Close(link.Writer))
|
||||
if err := task.Run(ctx, requestDonePost, responseDone); err != nil {
|
||||
common.Must(common.Interrupt(link.Reader))
|
||||
common.Must(common.Interrupt(link.Writer))
|
||||
return newError("connection ends").Base(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *Server) fallback(ctx context.Context, sessionPolicy policy.Session, requestReader buf.Reader, responseWriter buf.Writer) error { // nolint: lll
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
|
||||
ctx = policy.ContextWithBufferPolicy(ctx, sessionPolicy.Buffer)
|
||||
|
||||
var conn net.Conn
|
||||
var err error
|
||||
fb := s.config.Fallback
|
||||
if err := retry.ExponentialBackoff(5, 100).On(func() error { // nolint: gomnd
|
||||
var dialer net.Dialer
|
||||
conn, err = dialer.DialContext(ctx, fb.Type, fb.Dest)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}); err != nil {
|
||||
return newError("failed to dial to " + fb.Dest).Base(err).AtWarning()
|
||||
}
|
||||
defer conn.Close()
|
||||
|
||||
serverReader := buf.NewReader(conn)
|
||||
serverWriter := buf.NewWriter(conn)
|
||||
|
||||
requestDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
|
||||
|
||||
if err := buf.Copy(requestReader, serverWriter, buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to fallback request payload").Base(err).AtInfo()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
responseDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
|
||||
if err := buf.Copy(serverReader, responseWriter, buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to deliver response payload").Base(err).AtInfo()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
if err := task.Run(ctx, task.OnSuccess(requestDone, task.Close(serverWriter)), task.OnSuccess(responseDone, task.Close(responseWriter))); err != nil { // nolint: lll
|
||||
common.Must(common.Interrupt(serverReader))
|
||||
common.Must(common.Interrupt(serverWriter))
|
||||
return newError("fallback ends").Base(err).AtInfo()
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
@ -0,0 +1 @@
|
||||
package trojan
|
||||
@ -0,0 +1,28 @@
|
||||
package trojan
|
||||
|
||||
import (
|
||||
"sync"
|
||||
|
||||
"v2ray.com/core/common/protocol"
|
||||
)
|
||||
|
||||
// Validator stores valid trojan users
|
||||
type Validator struct {
|
||||
users sync.Map
|
||||
}
|
||||
|
||||
// Add a trojan user
|
||||
func (v *Validator) Add(u *protocol.MemoryUser) error {
|
||||
user := u.Account.(*MemoryAccount)
|
||||
v.users.Store(hexString(user.Key), u)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Get user with hashed key, nil if user doesn't exist.
|
||||
func (v *Validator) Get(hash string) *protocol.MemoryUser {
|
||||
u, _ := v.users.Load(hash)
|
||||
if u != nil {
|
||||
return u.(*protocol.MemoryUser)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in new issue