//cmd as shell command need absolute path
func SshRun(hostaddr, username, password, cmd string) (rst string, err error) {
var auths []ssh.AuthMethod
var keypath []string
userentry, err := user.Lookup(username)
if err != nil {
return err.Error(), err
}
keyRSA := fmt.Sprintf("%s/.ssh/id_rsa", userentry.HomeDir)
keyDSA := fmt.Sprintf("%s/.ssh/id_dsa", userentry.HomeDir)
keypath = append(keypath, keyRSA, keyDSA)
k := new(keychain)
k.loadPEM(keyRSA)
k.loadPEM(keyDSA)
auths = append(auths, ssh.PublicKeys(k.keys...), ssh.Password(password))
config := &ssh.ClientConfig{
User: username,
Auth: auths,
}
if !strings.Contains(hostaddr, ":") {
hostaddr = hostaddr + ":22"
}
client, err := ssh.Dial("tcp", hostaddr, config)
if err != nil {
return err.Error(), err
}
defer client.Close()
session, err := client.NewSession()
if err != nil {
return err.Error(), err
}
defer session.Close()
modes := ssh.TerminalModes{
ECHO: 0, // disable echoing
TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
}
if err = session.RequestPty("xterm", 80, 40, modes); err != nil {
return err.Error(), err
}
var bstderr bytes.Buffer
var bstdout bytes.Buffer
session.Stderr = &bstderr
session.Stdout = &bstdout
if err := session.Run(cmd); err != nil {
return bstderr.String(), err
}
return bstdout.String(), nil
}
//support ssh timeout
func sshExec(hostaddr, username, password, cmd string, ch chan Results) {
var auths []ssh.AuthMethod
var keypath []string
userentry, err := user.Lookup(username)
if err != nil {
ch <- Results{err: err, stderr: err.Error()}
return
}
keyRSA := fmt.Sprintf("%s/.ssh/id_rsa", userentry.HomeDir)
keyDSA := fmt.Sprintf("%s/.ssh/id_dsa", userentry.HomeDir)
keypath = append(keypath, keyRSA, keyDSA)
k := new(keychain)
k.loadPEM(keyRSA)
k.loadPEM(keyDSA)
auths = append(auths, ssh.PublicKeys(k.keys...), ssh.Password(password))
config := &ssh.ClientConfig{
User: username,
Auth: auths,
}
if !strings.Contains(hostaddr, ":") {
hostaddr = hostaddr + ":22"
}
client, err := ssh.Dial("tcp", hostaddr, config)
if err != nil {
ch <- Results{err: err, stderr: err.Error()}
return
}
defer client.Close()
session, err := client.NewSession()
if err != nil {
ch <- Results{err: err, stderr: err.Error()}
return
}
defer session.Close()
modes := ssh.TerminalModes{
ECHO: 0, // disable echoing
TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
}
if err = session.RequestPty("xterm", 80, 40, modes); err != nil {
ch <- Results{err: err, stderr: err.Error()}
return
}
var bstderr bytes.Buffer
var bstdout bytes.Buffer
session.Stderr = &bstderr
session.Stdout = &bstdout
rc := 0
if err := session.Run(cmd); err != nil {
if ugh, ok := err.(*ssh.ExitError); ok {
rc = ugh.Waitmsg.ExitStatus()
}
ch <- Results{err: err, rc: rc, stdout: bstdout.String(), stderr: bstderr.String()}
return
}
ch <- Results{err: nil, rc: rc, stdout: bstdout.String(), stderr: bstderr.String()}
return
}
