initial commit

listener/pht/listener.go

@@ -0,0 +1,96 @@
+// plain http tunnel
+
+package pht
+
+import (
+	"net"
+
+	"github.com/go-gost/gost/v3/pkg/common/metrics"
+	"github.com/go-gost/gost/v3/pkg/listener"
+	"github.com/go-gost/gost/v3/pkg/logger"
+	md "github.com/go-gost/gost/v3/pkg/metadata"
+	"github.com/go-gost/gost/v3/pkg/registry"
+	pht_util "github.com/go-gost/x/internal/util/pht"
+)
+
+func init() {
+	registry.ListenerRegistry().Register("pht", NewListener)
+	registry.ListenerRegistry().Register("phts", NewTLSListener)
+}
+
+type phtListener struct {
+	addr       net.Addr
+	tlsEnabled bool
+	server     *pht_util.Server
+	logger     logger.Logger
+	md         metadata
+	options    listener.Options
+}
+
+func NewListener(opts ...listener.Option) listener.Listener {
+	options := listener.Options{}
+	for _, opt := range opts {
+		opt(&options)
+	}
+	return &phtListener{
+		logger:  options.Logger,
+		options: options,
+	}
+}
+
+func NewTLSListener(opts ...listener.Option) listener.Listener {
+	options := listener.Options{}
+	for _, opt := range opts {
+		opt(&options)
+	}
+	return &phtListener{
+		tlsEnabled: true,
+		logger:     options.Logger,
+		options:    options,
+	}
+}
+
+func (l *phtListener) Init(md md.Metadata) (err error) {
+	if err = l.parseMetadata(md); err != nil {
+		return
+	}
+
+	l.addr, err = net.ResolveTCPAddr("tcp", l.options.Addr)
+	if err != nil {
+		return
+	}
+
+	l.server = pht_util.NewServer(
+		l.options.Addr,
+		pht_util.TLSConfigServerOption(l.options.TLSConfig),
+		pht_util.EnableTLSServerOption(l.tlsEnabled),
+		pht_util.BacklogServerOption(l.md.backlog),
+		pht_util.PathServerOption(l.md.authorizePath, l.md.pushPath, l.md.pullPath),
+		pht_util.LoggerServerOption(l.options.Logger),
+	)
+
+	go func() {
+		if err := l.server.ListenAndServe(); err != nil {
+			l.logger.Error(err)
+		}
+	}()
+
+	return
+}
+
+func (l *phtListener) Accept() (conn net.Conn, err error) {
+	conn, err = l.server.Accept()
+	if err != nil {
+		return
+	}
+	conn = metrics.WrapConn(l.options.Service, conn)
+	return
+}
+
+func (l *phtListener) Addr() net.Addr {
+	return l.addr
+}
+
+func (l *phtListener) Close() (err error) {
+	return l.server.Close()
+}

listener/pht/metadata.go

@@ -0,0 +1,51 @@
+package pht
+
+import (
+	"strings"
+
+	mdata "github.com/go-gost/gost/v3/pkg/metadata"
+)
+
+const (
+	defaultAuthorizePath = "/authorize"
+	defaultPushPath      = "/push"
+	defaultPullPath      = "/pull"
+	defaultBacklog       = 128
+)
+
+type metadata struct {
+	authorizePath string
+	pushPath      string
+	pullPath      string
+	backlog       int
+}
+
+func (l *phtListener) parseMetadata(md mdata.Metadata) (err error) {
+	const (
+		authorizePath = "authorizePath"
+		pushPath      = "pushPath"
+		pullPath      = "pullPath"
+
+		backlog = "backlog"
+	)
+
+	l.md.authorizePath = mdata.GetString(md, authorizePath)
+	if !strings.HasPrefix(l.md.authorizePath, "/") {
+		l.md.authorizePath = defaultAuthorizePath
+	}
+	l.md.pushPath = mdata.GetString(md, pushPath)
+	if !strings.HasPrefix(l.md.pushPath, "/") {
+		l.md.pushPath = defaultPushPath
+	}
+	l.md.pullPath = mdata.GetString(md, pullPath)
+	if !strings.HasPrefix(l.md.pullPath, "/") {
+		l.md.pullPath = defaultPullPath
+	}
+
+	l.md.backlog = mdata.GetInt(md, backlog)
+	if l.md.backlog <= 0 {
+		l.md.backlog = defaultBacklog
+	}
+
+	return
+}