mirror of
https://gitee.com/rainbond/Rainbond.git
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115 lines
2.8 KiB
Go
115 lines
2.8 KiB
Go
// RAINBOND, Application Management Platform
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// Copyright (C) 2014-2017 Goodrain Co., Ltd.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package util
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import (
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"errors"
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"io"
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"net"
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"os"
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"strconv"
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"golang.org/x/crypto/ssh"
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"golang.org/x/crypto/ssh/agent"
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)
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//SSHClient ssh client
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type SSHClient struct {
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IP string
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Port int
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User string
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Password string
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Method string
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Key string
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Stdout, Stderr io.Writer
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Cmd string
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}
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//NewSSHClient new ssh client
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func NewSSHClient(ip, user, password, cmd string, port int, stdout, stderr io.Writer) *SSHClient {
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var method = "password"
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if password == "" {
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method = "publickey"
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}
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return &SSHClient{
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IP: ip,
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User: user,
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Password: password,
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Method: method,
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Cmd: cmd,
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Port: port,
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Stderr: stderr,
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Stdout: stdout,
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}
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}
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//Connection 执行远程连接
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func (server *SSHClient) Connection() error {
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auths, err := parseAuthMethods(server)
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if err != nil {
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return err
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}
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config := &ssh.ClientConfig{
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User: server.User,
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Auth: auths,
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HostKeyCallback: ssh.InsecureIgnoreHostKey(),
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}
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addr := server.IP + ":" + strconv.Itoa(server.Port)
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client, err := ssh.Dial("tcp", addr, config)
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if err != nil {
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return err
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}
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defer client.Close()
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session, err := client.NewSession()
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if err != nil {
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return err
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}
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defer session.Close()
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session.Stderr = server.Stderr
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session.Stdout = server.Stdout
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if err := session.Run(server.Cmd); err != nil {
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return err
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}
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return nil
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}
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// 解析鉴权方式
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func parseAuthMethods(server *SSHClient) ([]ssh.AuthMethod, error) {
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sshs := []ssh.AuthMethod{}
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switch server.Method {
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case "password":
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sshs = append(sshs, ssh.Password(server.Password))
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break
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case "publickey":
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socket := os.Getenv("SSH_AUTH_SOCK")
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conn, err := net.Dial("unix", socket)
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if err != nil {
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return nil, err
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}
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agentClient := agent.NewClient(conn)
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sshs = append(sshs, ssh.PublicKeysCallback(agentClient.Signers))
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break
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default:
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return nil, errors.New("无效的密码方式: " + server.Method)
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}
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return sshs, nil
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}
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