62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
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package main
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import (
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"flag"
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"fmt"
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"log"
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"regexp"
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"time"
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"golang.org/x/crypto/ssh"
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"google.golang.org/grpc/codes"
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"github.com/google/goexpect"
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"github.com/google/goterm/term"
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)
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const (
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timeout = 10 * time.Minute
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)
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var (
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addr = flag.String("address", "", "address of telnet server")
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user = flag.String("user", "user", "username to use")
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pass1 = flag.String("pass1", "pass1", "password to use")
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pass2 = flag.String("pass2", "pass2", "alternate password to use")
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)
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func main() {
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flag.Parse()
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fmt.Println(term.Bluef("SSH Example"))
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sshClt, err := ssh.Dial("tcp", *addr, &ssh.ClientConfig{
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User: *user,
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Auth: []ssh.AuthMethod{ssh.Password(*pass1)},
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HostKeyCallback: ssh.InsecureIgnoreHostKey(),
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})
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if err != nil {
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log.Fatalf("ssh.Dial(%q) failed: %v", *addr, err)
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}
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defer sshClt.Close()
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e, _, err := expect.SpawnSSH(sshClt, timeout)
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if err != nil {
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log.Fatal(err)
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}
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defer e.Close()
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e.ExpectBatch([]expect.Batcher{
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&expect.BCas{[]expect.Caser{
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&expect.Case{R: regexp.MustCompile(`router#`), T: expect.OK()},
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&expect.Case{R: regexp.MustCompile(`Login: `), S: *user,
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T: expect.Continue(expect.NewStatus(codes.PermissionDenied, "wrong username")), Rt: 3},
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&expect.Case{R: regexp.MustCompile(`Password: `), S: *pass1, T: expect.Next(), Rt: 1},
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&expect.Case{R: regexp.MustCompile(`Password: `), S: *pass2,
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T: expect.Continue(expect.NewStatus(codes.PermissionDenied, "wrong password")), Rt: 1},
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}},
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}, timeout)
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fmt.Println(term.Greenf("All done"))
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}
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