feat: update

server/lib/crypto.go

@@ -114,6 +114,10 @@ func Decrypt(encrypted string) (string, error) {
 		return "", err
 	}
 
+	if len(data) < 16 {
+		return "", fmt.Errorf("invalid encrypted data")
+	}
+
 	block, err := aes.NewCipher(keyDec)
 	if err != nil {
 		return "", err

server/lib/os.go

@@ -0,0 +1,32 @@
+package lib
+
+import "strings"
+
+// Map of OS identifiers and their corresponding names
+var osMap = map[string]string{
+	"arch":     "arch",
+	"ubuntu":   "ubuntu",
+	"kali":     "kali",
+	"raspbian": "raspbian",
+	"pop":      "pop",
+	"debian":   "debian",
+	"fedora":   "fedora",
+	"centos":   "centos",
+	"alpine":   "alpine",
+	"mint":     "mint",
+	"suse":     "suse",
+	"darwin":   "macos",
+	"windows":  "windows",
+	"msys":     "windows",
+	"linux":    "linux",
+}
+
+func DetectOS(str string) string {
+	str = strings.ToLower(str)
+	for keyword, osName := range osMap {
+		if strings.Contains(str, keyword) {
+			return osName
+		}
+	}
+	return ""
+}

server/lib/ssh.go

@@ -0,0 +1,154 @@
+package lib
+
+import (
+	"fmt"
+	"io"
+
+	"golang.org/x/crypto/ssh"
+)
+
+type SSHClient struct {
+	HostName             string
+	User                 string
+	Password             string
+	Port                 int
+	PrivateKey           string
+	PrivateKeyPassphrase string
+}
+
+type SSHClientConfig struct {
+	HostName string
+	Port     int
+	Key      map[string]interface{}
+	AltKey   map[string]interface{}
+}
+
+func NewSSHClient(cfg *SSHClientConfig) *SSHClient {
+	username, _ := cfg.Key["username"].(string)
+	password, _ := cfg.Key["password"].(string)
+	privateKey, _ := cfg.AltKey["private"].(string)
+	passphrase, _ := cfg.AltKey["passphrase"].(string)
+
+	return &SSHClient{
+		HostName:             cfg.HostName,
+		User:                 username,
+		Password:             password,
+		Port:                 cfg.Port,
+		PrivateKey:           privateKey,
+		PrivateKeyPassphrase: passphrase,
+	}
+}
+
+func (s *SSHClient) Connect() (*ssh.Client, error) {
+	// Set up SSH client configuration
+	port := s.Port
+	if port == 0 {
+		port = 22
+	}
+	auth := []ssh.AuthMethod{
+		ssh.Password(s.Password),
+	}
+
+	if s.PrivateKey != "" {
+		var err error
+		var signer ssh.Signer
+
+		if s.PrivateKeyPassphrase != "" {
+			signer, err = ssh.ParsePrivateKeyWithPassphrase([]byte(s.PrivateKey), []byte(s.PrivateKeyPassphrase))
+		} else {
+			signer, err = ssh.ParsePrivateKey([]byte(s.PrivateKey))
+		}
+
+		if err != nil {
+			return nil, fmt.Errorf("unable to parse private key: %v", err)
+		}
+		auth = append(auth, ssh.PublicKeys(signer))
+	}
+
+	sshConfig := &ssh.ClientConfig{
+		User:            s.User,
+		Auth:            auth,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+
+	// Connect to SSH server
+	hostName := fmt.Sprintf("%s:%d", s.HostName, port)
+	sshConn, err := ssh.Dial("tcp", hostName, sshConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return sshConn, nil
+}
+
+type PtyShellRes struct {
+	Stdout  io.Reader
+	Stderr  io.Reader
+	Stdin   io.WriteCloser
+	Session *ssh.Session
+}
+
+func (s *SSHClient) StartPtyShell(sshConn *ssh.Client) (res *PtyShellRes, err error) {
+	// Start an SSH shell session
+	session, err := sshConn.NewSession()
+	if err != nil {
+		return nil, err
+	}
+
+	stdoutPipe, err := session.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	stderrPipe, err := session.StderrPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	stdinPipe, err := session.StdinPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	err = session.RequestPty("xterm-256color", 80, 24, ssh.TerminalModes{})
+	if err != nil {
+		return nil, err
+	}
+
+	if err := session.Shell(); err != nil {
+		return nil, err
+	}
+
+	return &PtyShellRes{
+		Stdout:  stdoutPipe,
+		Stderr:  stderrPipe,
+		Stdin:   stdinPipe,
+		Session: session,
+	}, nil
+}
+
+func (s *SSHClient) Exec(sshConn *ssh.Client, command string) (string, error) {
+	// Start an SSH shell session
+	session, err := sshConn.NewSession()
+	if err != nil {
+		return "", err
+	}
+	defer session.Close()
+
+	// Execute the command
+	output, err := session.CombinedOutput(command)
+	if err != nil {
+		return "", err
+	}
+
+	return string(output), nil
+}
+
+func (s *SSHClient) GetOS(client *SSHClient, con *ssh.Client) (string, error) {
+	out, err := client.Exec(con, "cat /etc/os-release || uname -a || systeminfo")
+	if err != nil {
+		return "", err
+	}
+
+	return DetectOS(out), nil
+}