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【GO】使用scp

作者:八大山人 / 发布于2014/4/10/ 878


package main

import (
  "code.google.com/p/go.crypto/ssh"
  "crypto"
  "crypto/rsa"
  "crypto/x509"
  "encoding/pem"
  "fmt"
  "io"
)

const privateKey = `content of id_rsa`

type keychain struct {
  key *rsa.PrivateKey
}

func (k *keychain) Key(i int) (interface{}, error) {
  if i != 0 {
    return nil, nil
  }
  return &k.key.PublicKey, nil
}

func (k *keychain) Sign(i int, rand io.Reader, data []byte) (sig []byte, err error) {
  hashFunc := crypto.SHA1
  h := hashFunc.New()
  h.Write(data)
  digest := h.Sum(nil)
  return rsa.SignPKCS1v15(rand, k.key, hashFunc, digest)
}

func main() {
  block, _ := pem.Decode([]byte(privateKey))
  rsakey, _ := x509.ParsePKCS1PrivateKey(block.Bytes)
  clientKey := &keychain{rsakey}
  clientConfig := &ssh.ClientConfig{
    User: "wuhao",
    Auth: []ssh.ClientAuth{
      ssh.ClientAuthKeyring(clientKey),
    },
  }
  client, err := ssh.Dial("tcp", "127.0.0.1:22", clientConfig)
  if err != nil {
    panic("Failed to dial: " + err.Error())
  }
  session, err := client.NewSession()
  if err != nil {
    panic("Failed to create session: " + err.Error())
  }
  defer session.Close()
  go func() {
    w, _ := session.StdinPipe()
    defer w.Close()
    content := "123456789\n"
    fmt.Fprintln(w, "C0644", len(content), "testfile")
    fmt.Fprint(w, content)
    fmt.Fprint(w, "\x00") // 传输以\x00结束
  }()
  if err := session.Run("/usr/bin/scp -qrt ./"); err != nil {
    panic("Failed to run: " + err.Error())
  }
}

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　scp　

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