feat: linux支持ssh隧道访问&其他优化

server/pkg/utils/net.go

@@ -0,0 +1,21 @@
+package utils
+
+import "net"
+
+// GetAvailablePort 获取可用端口
+func GetAvailablePort() (int, error) {
+	addr, err := net.ResolveTCPAddr("tcp", "localhost:0")
+	if err != nil {
+		return 0, err
+	}
+
+	l, err := net.ListenTCP("tcp", addr)
+	if err != nil {
+		return 0, err
+	}
+
+	defer func(l *net.TCPListener) {
+		_ = l.Close()
+	}(l)
+	return l.Addr().(*net.TCPAddr).Port, nil
+}

server/pkg/utils/ssh_client.go

@@ -1,58 +0,0 @@
-package utils
-
-import (
-	"fmt"
-	"io/ioutil"
-	"net"
-	"time"
-
-	"golang.org/x/crypto/ssh"
-)
-
-func SSHConnect(user, password, host, key string, port int) (*ssh.Client, error) {
-	var (
-		auth         []ssh.AuthMethod
-		addr         string
-		clientConfig *ssh.ClientConfig
-		client       *ssh.Client
-		config       ssh.Config
-		//session      *ssh.Session
-		err error
-	)
-
-	// get auth method
-	auth = make([]ssh.AuthMethod, 0)
-	if key == "" {
-		auth = append(auth, ssh.Password(password))
-	} else {
-		pemBytes, err := ioutil.ReadFile(key)
-		if err != nil {
-			return nil, err
-		}
-
-		var signer ssh.Signer
-		if password == "" {
-			signer, err = ssh.ParsePrivateKey(pemBytes)
-		} else {
-			signer, err = ssh.ParsePrivateKeyWithPassphrase(pemBytes, []byte(password))
-		}
-		if err != nil {
-			return nil, err
-		}
-		auth = append(auth, ssh.PublicKeys(signer))
-	}
-
-	clientConfig = &ssh.ClientConfig{
-		User:    user,
-		Auth:    auth,
-		Timeout: 30 * time.Second,
-		Config:  config,
-		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
-			return nil
-		},
-	}
-	addr = fmt.Sprintf("%s:%d", host, port)
-
-	client, err = ssh.Dial("tcp", addr, clientConfig)
-	return client, err
-}