优化代码

server/api/guacamole.go

@@ -139,8 +139,7 @@ func (api GuacamoleApi) Guacamole(c echo.Context) error {
 	}
 
 	nextSession.Observer = session.NewObserver(sessionId)
-	session.GlobalSessionManager.Add <- nextSession
+	session.GlobalSessionManager.Add(nextSession)
-	go nextSession.Observer.Start()
 	sess := model.Session{
 		ConnectionId: guacdTunnel.UUID,
 		Width:        intWidth,
@@ -254,7 +253,7 @@ func (api GuacamoleApi) GuacamoleMonitor(c echo.Context) error {
 		return nil
 	}
 	nextSession.ID = utils.UUID()
-	forObsSession.Observer.Add <- nextSession
+	forObsSession.Observer.Add(nextSession)
 	log.Debugf("[%v:%v] 观察者[%v]加入会话[%v]", sessionId, connectionId, nextSession.ID, s.ConnectionId)
 
 	guacamoleHandler := NewGuacamoleHandler(ws, guacdTunnel)
@@ -269,7 +268,7 @@ func (api GuacamoleApi) GuacamoleMonitor(c echo.Context) error {
 			_ = guacdTunnel.Close()
 
 			observerId := nextSession.ID
-			forObsSession.Observer.Del <- observerId
+			forObsSession.Observer.Del(observerId)
 			log.Debugf("[%v:%v] 观察者[%v]退出会话", sessionId, connectionId, observerId)
 			return nil
 		}

server/api/security.go

@@ -35,7 +35,7 @@ func (api SecurityApi) SecurityCreateEndpoint(c echo.Context) error {
 		Rule:     item.Rule,
 		Priority: item.Priority,
 	}
-	security.GlobalSecurityManager.Add <- rule
+	security.GlobalSecurityManager.Add(rule)
 
 	return Success(c, "")
 }
@@ -72,14 +72,14 @@ func (api SecurityApi) SecurityUpdateEndpoint(c echo.Context) error {
 		return err
 	}
 	// 更新内存中的安全规则
-	security.GlobalSecurityManager.Del <- id
+	security.GlobalSecurityManager.Del(id)
 	rule := &security.Security{
 		ID:       item.ID,
 		IP:       item.IP,
 		Rule:     item.Rule,
 		Priority: item.Priority,
 	}
-	security.GlobalSecurityManager.Add <- rule
+	security.GlobalSecurityManager.Add(rule)
 
 	return Success(c, nil)
 }
@@ -94,7 +94,7 @@ func (api SecurityApi) SecurityDeleteEndpoint(c echo.Context) error {
 			return err
 		}
 		// 更新内存中的安全规则
-		security.GlobalSecurityManager.Del <- id
+		security.GlobalSecurityManager.Del(id)
 	}
 
 	return Success(c, nil)

server/api/term.go

@@ -152,7 +152,7 @@ func (api WebTerminalApi) SshEndpoint(c echo.Context) error {
 		NextTerminal: nextTerminal,
 		Observer:     session.NewObserver(s.ID),
 	}
-	session.GlobalSessionManager.Add <- nextSession
+	session.GlobalSessionManager.Add(nextSession)
 
 	termHandler := NewTermHandler(sessionId, isRecording, ws, nextTerminal)
 	termHandler.Start()
@@ -239,14 +239,14 @@ func (api WebTerminalApi) SshMonitorEndpoint(c echo.Context) error {
 		Mode:      s.Mode,
 		WebSocket: ws,
 	}
-	nextSession.Observer.Add <- obSession
+	nextSession.Observer.Add(obSession)
 	log.Debugf("会话 %v 观察者 %v 进入", sessionId, obId)
 
 	for {
 		_, _, err := ws.ReadMessage()
 		if err != nil {
 			log.Debugf("会话 %v 观察者 %v 退出", sessionId, obId)
-			nextSession.Observer.Del <- obId
+			nextSession.Observer.Del(obId)
 			break
 		}
 	}

server/api/term_handler.go

@@ -85,11 +85,10 @@ func (r *TermHandler) writeToWebsocket() {
 				}
 				nextSession := session.GlobalSessionManager.GetById(r.sessionId)
 				// 监控
-				if nextSession != nil && len(nextSession.Observer.All()) > 0 {
+				if nextSession != nil && nextSession.Observer != nil {
-					obs := nextSession.Observer.All()
+					nextSession.Observer.Range(func(key string, ob *session.Session) {
-					for _, ob := range obs {
 						_ = ob.WriteMessage(dto.NewMessage(Data, s))
-					}
+					})
 				}
 				buf = []byte{}
 			}

server/global/gateway/gateway.go

@@ -8,8 +8,6 @@ import (
 	"os"
 	"sync"
 
-	"next-terminal/server/log"
-
 	"next-terminal/server/utils"
 
 	"golang.org/x/crypto/ssh"
@@ -22,11 +20,7 @@ type Gateway struct {
 	SshClient *ssh.Client
 	Message   string // 失败原因
 
-	tunnels *sync.Map
+	tunnels sync.Map
-
-	Add  chan *Tunnel
-	Del  chan string
-	exit chan bool
 }
 
 func NewGateway(id string, connected bool, message string, client *ssh.Client) *Gateway {
@@ -35,42 +29,14 @@ func NewGateway(id string, connected bool, message string, client *ssh.Client) *
 		Connected: connected,
 		Message:   message,
 		SshClient: client,
-		Add:       make(chan *Tunnel),
-		Del:       make(chan string),
-		tunnels:   new(sync.Map),
-		exit:      make(chan bool, 1),
-	}
-}
-
-func (g *Gateway) Run() {
-	for {
-		select {
-		case t := <-g.Add:
-			g.tunnels.Store(t.ID, t)
-			log.Info("add tunnel: %s", t.ID)
-			go t.Open()
-		case k := <-g.Del:
-			if val, ok := g.tunnels.Load(k); ok {
-				if vval, vok := val.(*Tunnel); vok {
-					vval.Close()
-					g.tunnels.Delete(k)
-				}
-			}
-		case <-g.exit:
-			return
-		}
 	}
 }
 
 func (g *Gateway) Close() {
 	g.tunnels.Range(func(key, value interface{}) bool {
-		if val, ok := value.(*Tunnel); ok {
+		g.CloseSshTunnel(key.(string))
-			val.Close()
-		}
 		return true
 	})
-	g.exit <- true
-
 }
 
 func (g *Gateway) OpenSshTunnel(id, ip string, port int) (exposedIP string, exposedPort int, err error) {
@@ -110,11 +76,17 @@ func (g *Gateway) OpenSshTunnel(id, ip string, port int) (exposedIP string, expo
 		cancel:     cancel,
 		listener:   listener,
 	}
-	g.Add <- tunnel
+	go tunnel.Open()
+	g.tunnels.Store(tunnel.ID, tunnel)
 
 	return tunnel.LocalHost, tunnel.LocalPort, nil
 }
 
-func (g Gateway) CloseSshTunnel(id string) {
+func (g *Gateway) CloseSshTunnel(id string) {
-	g.Del <- id
+	if value, ok := g.tunnels.Load(id); ok {
+		if tunnel, vok := value.(*Tunnel); vok {
+			tunnel.Close()
+			g.tunnels.Delete(id)
+		}
+	}
 }

server/global/gateway/manager.go

@@ -7,49 +7,32 @@ import (
 )
 
 type Manager struct {
-	gateways *sync.Map
+	gateways sync.Map
-
-	Add chan *Gateway
-	Del chan string
 }
 
 func NewManager() *Manager {
-	return &Manager{
+	return &Manager{}
-		Add:      make(chan *Gateway),
-		Del:      make(chan string),
-		gateways: new(sync.Map),
-	}
 }
 
-func (m *Manager) Start() {
+func (m *Manager) GetById(id string) *Gateway {
-	for {
-		select {
-		case g := <-m.Add:
-			m.gateways.Store(g.ID, g)
-			log.Info("add gateway: %s", g.ID)
-			go g.Run()
-		case k := <-m.Del:
-			if val, ok := m.gateways.Load(k); ok {
-				if vv, vok := val.(*Gateway); vok {
-					vv.Close()
-					m.gateways.Delete(k)
-				}
-
-			}
-		}
-	}
-}
-
-func (m Manager) GetById(id string) *Gateway {
 	if val, ok := m.gateways.Load(id); ok {
 		return val.(*Gateway)
 	}
 	return nil
 }
 
+func (m *Manager) Add(g *Gateway) {
+	m.gateways.Store(g.ID, g)
+	log.Infof("add gateway: %s", g.ID)
+}
+
+func (m *Manager) Del(id string) {
+	m.gateways.Delete(id)
+	log.Infof("del gateway: %s", id)
+}
+
 var GlobalGatewayManager *Manager
 
 func init() {
 	GlobalGatewayManager = NewManager()
-	go GlobalGatewayManager.Start()
 }

server/global/gateway/tunnel.go

@@ -10,23 +10,26 @@ import (
 )
 
 type Tunnel struct {
-	ID         string // 唯一标识
+	ID                string // 唯一标识
-	LocalHost  string // 本地监听地址
+	LocalHost         string // 本地监听地址
-	LocalPort  int    // 本地端口
+	LocalPort         int    // 本地端口
-	RemoteHost string // 远程连接地址
+	RemoteHost        string // 远程连接地址
-	RemotePort int    // 远程端口
+	RemotePort        int    // 远程端口
-	Gateway    *Gateway
+	Gateway           *Gateway
-	ctx        context.Context
+	ctx               context.Context
-	cancel     context.CancelFunc
+	cancel            context.CancelFunc
-	listener   net.Listener
+	listener          net.Listener
-	err        error
+	localConnections  []net.Conn
+	remoteConnections []net.Conn
 }
 
 func (r *Tunnel) Open() {
 	localAddr := fmt.Sprintf("%s:%d", r.LocalHost, r.LocalPort)
+
 	go func() {
 		<-r.ctx.Done()
 		_ = r.listener.Close()
+		log.Debugf("SSH 隧道 %v 关闭", localAddr)
 	}()
 	for {
 		log.Debugf("等待客户端访问 %v", localAddr)
@@ -35,6 +38,7 @@ func (r *Tunnel) Open() {
 			log.Debugf("接受连接失败 %v, 退出循环", err.Error())
 			return
 		}
+		r.localConnections = append(r.localConnections, localConn)
 
 		log.Debugf("客户端 %v 连接至 %v", localConn.RemoteAddr().String(), localAddr)
 		remoteAddr := fmt.Sprintf("%s:%d", r.RemoteHost, r.RemotePort)
@@ -44,27 +48,27 @@ func (r *Tunnel) Open() {
 			log.Debugf("连接远程主机 %v 失败", remoteAddr)
 			return
 		}
+		r.remoteConnections = append(r.remoteConnections, remoteConn)
 
 		log.Debugf("连接远程主机 %v 成功", remoteAddr)
-		go copyConn(r.ctx, localConn, remoteConn)
+		go copyConn(localConn, remoteConn)
-		go copyConn(r.ctx, remoteConn, localConn)
+		go copyConn(remoteConn, localConn)
 		log.Debugf("转发数据 [%v]->[%v]", localAddr, remoteAddr)
 	}
 }
 
-func (r Tunnel) Close() {
+func (r *Tunnel) Close() {
+	for i := range r.localConnections {
+		_ = r.localConnections[i].Close()
+	}
+	r.localConnections = nil
+	for i := range r.remoteConnections {
+		_ = r.remoteConnections[i].Close()
+	}
+	r.remoteConnections = nil
 	r.cancel()
 }
 
-func copyConn(ctx context.Context, writer, reader net.Conn) {
+func copyConn(writer, reader net.Conn) {
 	_, _ = io.Copy(writer, reader)
-	for {
-		select {
-		case <-ctx.Done():
-			_ = writer.Close()
-			_ = reader.Close()
-			return
-		}
-	}
-
 }

server/global/security/security.go

@@ -1,6 +1,11 @@
 package security
 
-import "sort"
+import (
+	"sort"
+	"sync"
+
+	"next-terminal/server/log"
+)
 
 type Security struct {
 	ID       string
@@ -10,45 +15,29 @@ type Security struct {
 }
 
 type Manager struct {
-	securities map[string]*Security
+	securities sync.Map
 	values     []*Security
-
-	Add chan *Security
-	Del chan string
 }
 
 func NewManager() *Manager {
-	return &Manager{
+	return &Manager{}
-		Add:        make(chan *Security),
-		Del:        make(chan string),
-		securities: map[string]*Security{},
-	}
-}
-
-func (m *Manager) Start() {
-	for {
-		select {
-		case s := <-m.Add:
-			m.securities[s.ID] = s
-			m.LoadData()
-		case s := <-m.Del:
-			if _, ok := m.securities[s]; ok {
-				delete(m.securities, s)
-				m.LoadData()
-			}
-		}
-	}
 }
 
 func (m *Manager) Clear() {
-	m.securities = map[string]*Security{}
+	m.securities.Range(func(k, _ interface{}) bool {
+		m.securities.Delete(k)
+		return true
+	})
 }
 
 func (m *Manager) LoadData() {
 	var values []*Security
-	for _, security := range m.securities {
+	m.securities.Range(func(key, value interface{}) bool {
-		values = append(values, security)
+		if security, ok := value.(*Security); ok {
-	}
+			values = append(values, security)
+		}
+		return true
+	})
 
 	sort.Slice(values, func(i, j int) bool {
 		// 优先级数字越小代表优先级越高，因此此处用小于号
@@ -58,13 +47,24 @@ func (m *Manager) LoadData() {
 	m.values = values
 }
 
-func (m Manager) Values() []*Security {
+func (m *Manager) Values() []*Security {
 	return m.values
 }
 
+func (m *Manager) Add(s *Security) {
+	m.securities.Store(s.ID, s)
+	m.LoadData()
+	log.Infof("add security: %s", s.ID)
+}
+
+func (m *Manager) Del(id string) {
+	m.securities.Delete(id)
+	m.LoadData()
+	log.Infof("del security: %s", id)
+}
+
 var GlobalSecurityManager *Manager
 
 func init() {
 	GlobalSecurityManager = NewManager()
-	go GlobalSecurityManager.Start()
 }

server/global/session/session.go

@@ -1,11 +1,11 @@
 package session
 
 import (
-	"fmt"
 	"sync"
 
 	"next-terminal/server/dto"
 	"next-terminal/server/guacd"
+	"next-terminal/server/log"
 	"next-terminal/server/term"
 
 	"github.com/gorilla/websocket"
@@ -42,80 +42,79 @@ func (s *Session) WriteString(str string) error {
 	return s.WebSocket.WriteMessage(websocket.TextMessage, message)
 }
 
+func (s *Session) Close() {
+	if s.GuacdTunnel != nil {
+		_ = s.GuacdTunnel.Close()
+	}
+	if s.NextTerminal != nil {
+		s.NextTerminal.Close()
+	}
+	if s.WebSocket != nil {
+		_ = s.WebSocket.Close()
+	}
+}
+
 type Manager struct {
 	id       string
-	sessions map[string]*Session
+	sessions sync.Map
-
-	Add  chan *Session
-	Del  chan string
-	exit chan bool
 }
 
 func NewManager() *Manager {
-	return &Manager{
+	return &Manager{}
-		Add:      make(chan *Session),
-		Del:      make(chan string),
-		sessions: map[string]*Session{},
-		exit:     make(chan bool, 1),
-	}
 }
 
 func NewObserver(id string) *Manager {
 	return &Manager{
-		id:       id,
+		id: id,
-		Add:      make(chan *Session),
-		Del:      make(chan string),
-		sessions: map[string]*Session{},
-		exit:     make(chan bool, 1),
 	}
 }
 
-func (m *Manager) Start() {
+func (m *Manager) GetById(id string) *Session {
-	defer fmt.Printf("Session Manager %v End\n", m.id)
+	value, ok := m.sessions.Load(id)
-	fmt.Printf("Session Manager %v  Open\n", m.id)
+	if ok {
-	for {
+		return value.(*Session)
-		select {
+	}
-		case s := <-m.Add:
+	return nil
-			m.sessions[s.ID] = s
+}
-		case k := <-m.Del:
-			if _, ok := m.sessions[k]; ok {
-				ss := m.sessions[k]
-				if ss.GuacdTunnel != nil {
-					_ = ss.GuacdTunnel.Close()
-				}
-				if ss.NextTerminal != nil {
-					ss.NextTerminal.Close()
-				}
 
-				if ss.WebSocket != nil {
+func (m *Manager) Add(s *Session) {
-					_ = ss.WebSocket.Close()
+	m.sessions.Store(s.ID, s)
-				}
+	log.Infof("add session: %s", s.ID)
-				if ss.Observer != nil {
+}
-					ss.Observer.Close()
+
-				}
+func (m *Manager) Del(id string) {
-				delete(m.sessions, k)
+	session := m.GetById(id)
-			}
+	if session != nil {
-		case <-m.exit:
+		session.Close()
-			return
+		if session.Observer != nil {
+			session.Observer.Clear()
 		}
 	}
+	m.sessions.Delete(id)
+	log.Infof("del session: %s", id)
 }
 
-func (m *Manager) Close() {
+func (m *Manager) Clear() {
-	m.exit <- true
+	m.sessions.Range(func(key, value interface{}) bool {
+		if session, ok := value.(*Session); ok {
+			session.Close()
+		}
+		m.sessions.Delete(key)
+		return true
+	})
 }
 
-func (m Manager) GetById(id string) *Session {
+func (m *Manager) Range(f func(key string, value *Session)) {
-	return m.sessions[id]
+	m.sessions.Range(func(key, value interface{}) bool {
-}
+		if session, ok := value.(*Session); ok {
-
+			f(key.(string), session)
-func (m Manager) All() map[string]*Session {
+		}
-	return m.sessions
+		return true
+	})
 }
 
 var GlobalSessionManager *Manager
 
 func init() {
 	GlobalSessionManager = NewManager()
-	go GlobalSessionManager.Start()
 }

server/service/backup.go

@@ -220,7 +220,7 @@ func (service backupService) Import(backup *dto.Backup) error {
 					Rule:     item.Rule,
 					Priority: item.Priority,
 				}
-				security.GlobalSecurityManager.Add <- rule
+				security.GlobalSecurityManager.Add(rule)
 			}
 		}
 

server/service/gateway.go

@@ -60,11 +60,11 @@ func (r gatewayService) ReConnect(m *model.AccessGateway) *gateway.Gateway {
 	} else {
 		g = gateway.NewGateway(m.ID, true, "", sshClient)
 	}
-	gateway.GlobalGatewayManager.Add <- g
+	gateway.GlobalGatewayManager.Add(g)
 	log.Debugf("重建接入网关「%v」完成", m.Name)
 	return g
 }
 
 func (r gatewayService) DisconnectById(accessGatewayId string) {
-	gateway.GlobalGatewayManager.Del <- accessGatewayId
+	gateway.GlobalGatewayManager.Del(accessGatewayId)
 }

server/service/security.go

@@ -25,7 +25,7 @@ func (service securityService) ReloadAccessSecurity() error {
 				Rule:     rules[i].Rule,
 				Priority: rules[i].Priority,
 			}
-			security.GlobalSecurityManager.Add <- rule
+			security.GlobalSecurityManager.Add(rule)
 		}
 	}
 	return nil

server/service/session.go

@@ -96,14 +96,13 @@ func (service sessionService) CloseSessionById(sessionId string, code int, reaso
 		service.WriteCloseMessage(nextSession, nextSession.Mode, code, reason)
 
 		if nextSession.Observer != nil {
-			obs := nextSession.Observer.All()
+			nextSession.Observer.Range(func(key string, ob *session.Session) {
-			for _, ob := range obs {
 				service.WriteCloseMessage(ob, ob.Mode, code, reason)
 				log.Debugf("[%v] 强制踢出会话的观察者: %v", sessionId, ob.ID)
-			}
+			})
 		}
 	}
-	session.GlobalSessionManager.Del <- sessionId
+	session.GlobalSessionManager.Del(sessionId)
 
 	service.DisDBSess(sessionId, code, reason)
 }

server/sshd/ui.go

@@ -271,8 +271,7 @@ func (gui Gui) handleAccessAsset(sess *ssh.Session, sessionId string) (err error
 		NextTerminal: nextTerminal,
 		Observer:     session.NewObserver(s.ID),
 	}
-	go nextSession.Observer.Start()
+	session.GlobalSessionManager.Add(nextSession)
-	session.GlobalSessionManager.Add <- nextSession
 
 	if err := sshSession.Wait(); err != nil {
 		return err

server/sshd/writer.go

@@ -66,12 +66,9 @@ func (w *Writer) Write(p []byte) (n int, err error) {
 
 func sendObData(sessionId, s string) {
 	nextSession := session.GlobalSessionManager.GetById(sessionId)
-	if nextSession != nil {
+	if nextSession != nil && nextSession.Observer != nil {
-		if nextSession.Observer != nil {
+		nextSession.Observer.Range(func(key string, ob *session.Session) {
-			obs := nextSession.Observer.All()
+			_ = ob.WriteMessage(dto.NewMessage(api.Data, s))
-			for _, ob := range obs {
+		})
-				_ = ob.WriteMessage(dto.NewMessage(api.Data, s))
-			}
-		}
 	}
 }

web/src/components/asset/AssetModal.js

@@ -471,7 +471,7 @@ Windows需要对远程应用程序的名称使用特殊的符号。
                                                     setSshMode(value)
                                                 }}>
                                                     <Option value="">guacd</Option>
-                                                    <Option value="naive">原生</Option>
+                                                    <Option value="native">原生</Option>
                                                 </Select>
                                             </Form.Item>
                                         </Panel>