add chain.Chainable interface

cmd/gost/config.go

@@ -53,8 +53,8 @@ func buildService(cfg *config.Config) (services []*service.Service) {
 			listener.LoggerOption(listenerLogger),
 		)
 
-		if chainable, ok := ln.(listener.Chainable); ok {
-			chainable.Chain(chains[svc.Chain])
+		if chainable, ok := ln.(chain.Chainable); ok {
+			chainable.WithChain(chains[svc.Chain])
 		}
 
 		if err := ln.Init(metadata.MapMetadata(svc.Listener.Metadata)); err != nil {
@@ -67,11 +67,14 @@ func buildService(cfg *config.Config) (services []*service.Service) {
 		})
 
 		h := registry.GetHandler(svc.Handler.Type)(
-			handler.ChainOption(chains[svc.Chain]),
 			handler.BypassOption(bypasses[svc.Bypass]),
 			handler.LoggerOption(handlerLogger),
 		)
 
+		if chainable, ok := h.(chain.Chainable); ok {
+			chainable.WithChain(chains[svc.Chain])
+		}
+
 		if forwarder, ok := h.(handler.Forwarder); ok {
 			forwarder.Forward(forwarderFromConfig(svc.Forwarder))
 		}
@@ -162,6 +165,8 @@ func logFromConfig(cfg *config.LogConfig) logger.Logger {
 
 	var out io.Writer = os.Stderr
 	switch cfg.Output {
+	case "none":
+		return logger.Nop()
 	case "stdout", "":
 		out = os.Stdout
 	case "stderr":

cmd/gost/gost.yml

@@ -1,5 +1,5 @@
 log:
-  output: stderr # stderr, stdout, /path/to/file
+  output: stderr # none, stderr, stdout, /path/to/file
   level: debug # debug, info, warn, error, fatal
   format: json # text, json
 

cmd/gost/out.yml

@@ -1,47 +1,40 @@
 services:
 - name: service-0
-  url: tcp://:8080/:8081?abc=def&true=true&n=123
-  addr: :8080
+  url: ss://abc:123@:18338/:18338
+  addr: :18338
   chain: chain-0
   listener:
     type: tcp
     metadata:
-      abc: def
-      "n": "123"
-      "true": "true"
+      users:
+      - abc:123
   handler:
     type: tcp
     metadata:
-      abc: def
-      "n": "123"
-      "true": "true"
+      users:
+      - abc:123
   forwarder:
     targets:
-    - :8081
+    - :18338
 chains:
 - name: chain-0
   hops:
   - name: hop-0
     nodes:
     - name: node-0
-      url: auto://:1081?n=123t
-      addr: :1081
+      url: socks://abc:123@:11080?type=abc&key=value
+      addr: :11080
       dialer:
-        type: auto
+        type: tcp
         metadata:
-          "n": 123t
+          key: value
+          type: abc
+          user:
+          - abc:123
       connector:
-        type: auto
+        type: socks
         metadata:
-          "n": 123t
-  - name: hop-1
-    nodes:
-    - name: node-0
-      url: auto://:1082
-      addr: :1082
-      dialer:
-        type: auto
-        metadata: {}
-      connector:
-        type: auto
-        metadata: {}
+          key: value
+          type: abc
+          user:
+          - abc:123

go.mod

@@ -23,6 +23,7 @@ require (
 	github.com/xtaci/tcpraw v1.2.25
 	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5
 	golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420
+	gopkg.in/yaml.v2 v2.4.0
 )
 
 require (
@@ -57,5 +58,4 @@ require (
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	gopkg.in/ini.v1 v1.63.2 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

go.sum

@@ -113,14 +113,6 @@ github.com/go-gost/gosocks4 v0.0.1 h1:+k1sec8HlELuQV7rWftIkmy8UijzUt2I6t+iMPlGB2
 github.com/go-gost/gosocks4 v0.0.1/go.mod h1:3B6L47HbU/qugDg4JnoFPHgJXE43Inz8Bah1QaN9qCc=
 github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09 h1:A95M6UWcfZgOuJkQ7QLfG0Hs5peWIUSysCDNz4pfe04=
 github.com/go-gost/gosocks5 v0.3.1-0.20211109033403-d894d75b7f09/go.mod h1:1G6I7HP7VFVxveGkoK8mnprnJqSqJjdcASKsdUn4Pp4=
-github.com/go-gost/relay v0.1.0 h1:UOf2YwAzzaUjY5mdpMuLfSw0vz62iIFYk7oJQkuhlGw=
-github.com/go-gost/relay v0.1.0/go.mod h1:YFCpddLOFE3NlIkeDWRdEs8gL/GFsqXdtaf8SV5v4YQ=
-github.com/go-gost/relay v0.1.1-0.20211028021513-03c783f893bc h1:F8wBeQYP8JvzIG/6rwRsC+R+D97lstozbsqwRknd4XU=
-github.com/go-gost/relay v0.1.1-0.20211028021513-03c783f893bc/go.mod h1:lcX+23LCQ3khIeASBo+tJ/WbwXFO32/N5YN6ucuYTG8=
-github.com/go-gost/relay v0.1.1-0.20211117133957-4b109438dc89 h1:1EtXLpAYeGVcptB0Jt8AeRe+GQnbTjbqeYA3L02pCIY=
-github.com/go-gost/relay v0.1.1-0.20211117133957-4b109438dc89/go.mod h1:lcX+23LCQ3khIeASBo+tJ/WbwXFO32/N5YN6ucuYTG8=
-github.com/go-gost/relay v0.1.1-0.20211122140942-99db08018413 h1:vF0HQWLlwu2GTZQgS9HJlOWUhnEZy8np/fCbWizI/08=
-github.com/go-gost/relay v0.1.1-0.20211122140942-99db08018413/go.mod h1:lcX+23LCQ3khIeASBo+tJ/WbwXFO32/N5YN6ucuYTG8=
 github.com/go-gost/relay v0.1.1-0.20211122150329-54ee406ea49d h1:rzGVzkSvxuDZg8PoYmOR+tvcAg9Dr8whgV19kzuO4YA=
 github.com/go-gost/relay v0.1.1-0.20211122150329-54ee406ea49d/go.mod h1:lcX+23LCQ3khIeASBo+tJ/WbwXFO32/N5YN6ucuYTG8=
 github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=

pkg/chain/chain.go

@@ -1,5 +1,9 @@
 package chain
 
+type Chainable interface {
+	WithChain(chain *Chain)
+}
+
 type Chain struct {
 	groups []*NodeGroup
 }

pkg/handler/forward/local/handler.go

@@ -33,7 +33,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &forwardHandler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -43,6 +42,11 @@ func (h *forwardHandler) Init(md md.Metadata) (err error) {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *forwardHandler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 // Forward implements handler.Forwarder.
 func (h *forwardHandler) Forward(group *chain.NodeGroup) {
 	h.group = group

pkg/handler/http/handler.go

@@ -41,7 +41,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &httpHandler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -51,6 +50,11 @@ func (h *httpHandler) Init(md md.Metadata) error {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *httpHandler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 func (h *httpHandler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/handler/option.go

@@ -2,12 +2,10 @@ package handler
 
 import (
 	"github.com/go-gost/gost/pkg/bypass"
-	"github.com/go-gost/gost/pkg/chain"
 	"github.com/go-gost/gost/pkg/logger"
 )
 
 type Options struct {
-	Chain  *chain.Chain
 	Bypass bypass.Bypass
 	Logger logger.Logger
 }
@@ -20,12 +18,6 @@ func LoggerOption(logger logger.Logger) Option {
 	}
 }
 
-func ChainOption(chain *chain.Chain) Option {
-	return func(opts *Options) {
-		opts.Chain = chain
-	}
-}
-
 func BypassOption(bypass bypass.Bypass) Option {
 	return func(opts *Options) {
 		opts.Bypass = bypass

pkg/handler/relay/handler.go

@@ -34,7 +34,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &relayHandler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -44,6 +43,11 @@ func (h *relayHandler) Init(md md.Metadata) (err error) {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *relayHandler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 // Forward implements handler.Forwarder.
 func (h *relayHandler) Forward(group *chain.NodeGroup) {
 	h.group = group

pkg/handler/socks/v4/handler.go

@@ -33,7 +33,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &socks4Handler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -43,6 +42,11 @@ func (h *socks4Handler) Init(md md.Metadata) (err error) {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *socks4Handler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 func (h *socks4Handler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/handler/socks/v5/handler.go

@@ -35,7 +35,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &socks5Handler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -56,6 +55,11 @@ func (h *socks5Handler) Init(md md.Metadata) (err error) {
 	return
 }
 
+// implements chain.Chainable interface
+func (h *socks5Handler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 func (h *socks5Handler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/handler/ss/handler.go

@@ -35,7 +35,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &ssHandler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -45,6 +44,11 @@ func (h *ssHandler) Init(md md.Metadata) (err error) {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *ssHandler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 func (h *ssHandler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/handler/ss/udp/handler.go

@@ -34,7 +34,6 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 	}
 
 	return &ssuHandler{
-		chain:  options.Chain,
 		bypass: options.Bypass,
 		logger: options.Logger,
 	}
@@ -44,6 +43,11 @@ func (h *ssuHandler) Init(md md.Metadata) (err error) {
 	return h.parseMetadata(md)
 }
 
+// implements chain.Chainable interface
+func (h *ssuHandler) WithChain(chain *chain.Chain) {
+	h.chain = chain
+}
+
 func (h *ssuHandler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/listener/listener.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"net"
 
-	"github.com/go-gost/gost/pkg/chain"
 	"github.com/go-gost/gost/pkg/metadata"
 )
 
@@ -22,7 +21,3 @@ type Listener interface {
 type Accepter interface {
 	Accept() (net.Conn, error)
 }
-
-type Chainable interface {
-	Chain(chain *chain.Chain)
-}

pkg/listener/rtcp/listener.go

@@ -38,8 +38,8 @@ func NewListener(opts ...listener.Option) listener.Listener {
 	}
 }
 
-// implements listener.Chainable interface
-func (l *rtcpListener) Chain(chain *chain.Chain) {
+// implements chain.Chainable interface
+func (l *rtcpListener) WithChain(chain *chain.Chain) {
 	l.chain = chain
 }
 

pkg/listener/rudp/listener.go

@@ -38,8 +38,8 @@ func NewListener(opts ...listener.Option) listener.Listener {
 	}
 }
 
-// implements listener.Chainable interface
-func (l *rudpListener) Chain(chain *chain.Chain) {
+// implements chain.Chainable interface
+func (l *rudpListener) WithChain(chain *chain.Chain) {
 	l.chain = chain
 }
 

pkg/logger/nop_logger.go

@@ -0,0 +1,53 @@
+package logger
+
+var (
+	nop = &nopLogger{}
+)
+
+func Nop() Logger {
+	return nop
+}
+
+type nopLogger struct{}
+
+func (l *nopLogger) WithFields(fields map[string]interface{}) Logger {
+	return l
+}
+
+func (l *nopLogger) Debug(args ...interface{}) {
+}
+
+func (l *nopLogger) Debugf(format string, args ...interface{}) {
+}
+
+func (l *nopLogger) Info(args ...interface{}) {
+}
+
+func (l *nopLogger) Infof(format string, args ...interface{}) {
+}
+
+func (l *nopLogger) Warn(args ...interface{}) {
+}
+
+func (l *nopLogger) Warnf(format string, args ...interface{}) {
+}
+
+func (l *nopLogger) Error(args ...interface{}) {
+}
+
+func (l *nopLogger) Errorf(format string, args ...interface{}) {
+}
+
+func (l *nopLogger) Fatal(args ...interface{}) {
+}
+
+func (l *nopLogger) Fatalf(format string, args ...interface{}) {
+}
+
+func (l *nopLogger) GetLevel() LogLevel {
+	return ""
+}
+
+func (l *nopLogger) IsLevelEnabled(level LogLevel) bool {
+	return false
+}