Best Venom code snippet using ssh.connectToHost
main.go
Source: main.go
...21func main() {22 if len(os.Args) < 3 {23 fmt.Println(version + " Usage: ssh-keyget <host:port> <type(dsa,rsa,ecdsa,ed25519)> <export(e)>")24 } else if len(os.Args) == 3 {25 connectToHost(os.Args[1], os.Args[2], "")26 } else if len(os.Args) == 4 {27 connectToHost(os.Args[1], os.Args[2], os.Args[3])28 } else {29 fmt.Println("Too many arguments")30 }31}32// truncateString truncate string to given size33func truncateString(s string, size int) string {34 ts := s35 if len(s) > size {36 ts = s[0:size]37 }38 return ts39}40// chunkString convert string to chunks of given size41func chunkString(s string, chunkSize int) []string {42 var chunks []string43 runes := []rune(s)44 if len(runes) == 0 {45 return []string{s}46 }47 for i := 0; i < len(runes); i += chunkSize {48 nn := i + chunkSize49 if nn > len(runes) {50 nn = len(runes)51 }52 chunks = append(chunks, string(runes[i:nn]))53 }54 return chunks55}56// getPublicKeyInfo gets the public key type and length57func getPublicKeyInfo(in []byte) (string, int, error) {58 pk, err := ssh.ParsePublicKey(in)59 if err != nil {60 if strings.Contains(err.Error(), "ssh: unknown key algorithm") {61 return "", 0, err62 }63 return "", 0, fmt.Errorf("ssh.ParsePublicKey: %v", err)64 }65 switch pk.Type() {66 case ssh.KeyAlgoDSA:67 w := struct {68 Name string69 P, Q, G, Y *big.Int70 }{}71 if err := ssh.Unmarshal(pk.Marshal(), &w); err != nil {72 return "", 0, err73 }74 return "dsa", w.P.BitLen(), nil75 case ssh.KeyAlgoRSA:76 w := struct {77 Name string78 E, N *big.Int79 }{}80 if err := ssh.Unmarshal(pk.Marshal(), &w); err != nil {81 return "", 0, err82 }83 return "RSA", w.N.BitLen(), nil84 case ssh.KeyAlgoECDSA256:85 return "ECDSA", 256, nil86 case ssh.KeyAlgoECDSA384:87 return "ECDSA", 384, nil88 case ssh.KeyAlgoECDSA521:89 return "ECDSA", 521, nil90 case ssh.KeyAlgoED25519:91 return "ED25519", 256, nil92 }93 return "", 0, fmt.Errorf("unsupported key type: %s", pk.Type())94}95// trustedHostKeyCallback host key callback from connect96func trustedHostKeyCallback(host string, export string) ssh.HostKeyCallback {97 return func(_ string, _ net.Addr, k ssh.PublicKey) error {98 ks := base64.StdEncoding.EncodeToString(k.Marshal())99 keytype, length, _ := getPublicKeyInfo(k.Marshal())100 fpmd5 := ssh.FingerprintLegacyMD5(k)101 fpsha256 := ssh.FingerprintSHA256(k)102 comment := keytype + " " + strconv.Itoa(length) + ", " + host103 if export == "e" {104 fmt.Println(ssh2Header)105 ssh2Comment := "Comment: " + comment106 fmt.Println(truncateString(ssh2Comment, ssh2Width - 1) + "\\")107 fmt.Println("MD5:" + fpmd5 + "\\")108 fmt.Println(fpsha256)109 fmt.Println(strings.Join(chunkString(ks, ssh2Width), "\n"))110 fmt.Println(ssh2Footer)111 } else {112 fmt.Println(k.Type() + " " + ks + " " + comment + ", MD5:" + fpmd5 + ", " + fpsha256)113 }114 return nil115 }116}117// connectToHost connect to host to get public key118func connectToHost(host string, keytype string, export string){119 if !strings.Contains(host, ":") {120 host = host + ":" + strconv.Itoa(sshDefaultPort)121 }122 sshConfig := &ssh.ClientConfig{123 User: "",124 Auth: []ssh.AuthMethod{ssh.Password("")},125 HostKeyCallback: trustedHostKeyCallback(host, export),126 }127 switch keytype {128 case "dsa":129 sshConfig.HostKeyAlgorithms = []string{ssh.KeyAlgoDSA}130 case "rsa":131 sshConfig.HostKeyAlgorithms = []string{ssh.KeyAlgoRSA}132 case "ecdsa":...
esxi_remote_cmds.go
Source: esxi_remote_cmds.go
...9 "github.com/tmc/scp"10 "golang.org/x/crypto/ssh"11)12// Connect to esxi host using ssh13func connectToHost(esxiConnInfo ConnectionStruct, attempt int) (*ssh.Client, *ssh.Session, error) {14 sshConfig := &ssh.ClientConfig{15 User: esxiConnInfo.user,16 Auth: []ssh.AuthMethod{17 ssh.KeyboardInteractive(func(user, instruction string, questions []string, echos []bool) ([]string, error) {18 // Reply password to all questions19 answers := make([]string, len(questions))20 for i, _ := range answers {21 answers[i] = esxiConnInfo.pass22 }23 return answers, nil24 }),25 },26 }27 sshConfig.HostKeyCallback = ssh.InsecureIgnoreHostKey()28 esxi_hostandport := fmt.Sprintf("%s:%s", esxiConnInfo.host, esxiConnInfo.port)29 //attempt := 1030 for attempt > 0 {31 client, err := ssh.Dial("tcp", esxi_hostandport, sshConfig)32 if err != nil {33 log.Printf("[runRemoteSshCommand] Retry connection: %d\n", attempt)34 attempt -= 135 time.Sleep(1 * time.Second)36 } else {37 session, err := client.NewSession()38 if err != nil {39 client.Close()40 return nil, nil, fmt.Errorf("Session Connection Error")41 }42 return client, session, nil43 }44 }45 return nil, nil, fmt.Errorf("Client Connection Error")46}47// Run any remote ssh command on esxi server and return results.48func runRemoteSshCommand(esxiConnInfo ConnectionStruct, remoteSshCommand string, shortCmdDesc string) (string, error) {49 log.Println("[runRemoteSshCommand] :" + shortCmdDesc)50 var attempt int51 if remoteSshCommand == "vmware --version" {52 attempt = 353 } else {54 attempt = 1055 }56 client, session, err := connectToHost(esxiConnInfo, attempt)57 if err != nil {58 log.Println("[runRemoteSshCommand] Failed err: " + err.Error())59 return "Failed to ssh to esxi host", err60 }61 stdout_raw, err := session.CombinedOutput(remoteSshCommand)62 stdout := strings.TrimSpace(string(stdout_raw))63 if stdout == "<unset>" {64 return "Failed to ssh to esxi host or Management Agent has been restarted", err65 }66 log.Printf("[runRemoteSshCommand] cmd:/%s/\n stdout:/%s/\nstderr:/%s/\n", remoteSshCommand, stdout, err)67 client.Close()68 return stdout, err69}70// Function to scp file to esxi host.71func writeContentToRemoteFile(esxiConnInfo ConnectionStruct, content string, path string, shortCmdDesc string) (string, error) {72 log.Println("[writeContentToRemoteFile] :" + shortCmdDesc)73 f, _ := ioutil.TempFile("", "")74 fmt.Fprintln(f, content)75 f.Close()76 defer os.Remove(f.Name())77 client, session, err := connectToHost(esxiConnInfo, 10)78 if err != nil {79 log.Println("[writeContentToRemoteFile] Failed err: " + err.Error())80 return "Failed to ssh to esxi host", err81 }82 err = scp.CopyPath(f.Name(), path, session)83 if err != nil {84 log.Println("[writeContentToRemoteFile] Failed err: " + err.Error())85 return "Failed to scp file to esxi host", err86 }87 client.Close()88 return content, err89}...
myssh.go
Source: myssh.go
...11 Port string12 Password string13}14func (ssh_conf *MakeConfig) Run(command string) (string, error) {15 client, session, err := connectToHost(ssh_conf.User, ssh_conf.Password, ssh_conf.Server+":"+ssh_conf.Port)16 if err != nil {17 panic(err)18 }19 out, err := session.CombinedOutput(command)20 if err != nil {21 panic(err)22 }23 fmt.Println(string(out))24 client.Close()25 return string(out), err26}27func connectToHost(user, pass, host string) (*ssh.Client, *ssh.Session, error) {28 sshConfig := &ssh.ClientConfig{29 User: user,30 Auth: []ssh.AuthMethod{ssh.Password(pass)},31 }32 client, err := ssh.Dial("tcp", host, sshConfig)33 if err != nil {34 return nil, nil, err35 }36 session, err := client.NewSession()37 if err != nil {38 client.Close()39 return nil, nil, err40 }41 return client, session, nil...
connectToHost
Using AI Code Generation
1import (2func main() {3 privateKey, err := ioutil.ReadFile("id_rsa")4 if err != nil {5 panic("Failed to read private key")6 }7 signer, err := ssh.ParsePrivateKey(privateKey)8 if err != nil {9 panic("Failed to parse private key")10 }11 client, err := ssh.Dial("tcp", "
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