Files
cloudpods/pkg/webconsole/command/climc_ssh_command.go

133 lines
3.2 KiB
Go

// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package command
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
"yunion.io/x/pkg/errors"
"yunion.io/x/onecloud/pkg/mcclient"
"yunion.io/x/onecloud/pkg/webconsole/helper"
)
type ClimcSshInfo struct {
IpAddr string `json:"ip_addr"`
Username string `json:"username"`
}
type ClimcSshCommand struct {
*BaseCommand
Info *ClimcSshInfo
s *mcclient.ClientSession
keyFile string
buffer []byte
}
func NewClimcSshCommand(info *ClimcSshInfo, s *mcclient.ClientSession) (*ClimcSshCommand, error) {
if info.IpAddr == "" {
return nil, fmt.Errorf("Empty host ip address")
}
if info.Username == "" {
return nil, fmt.Errorf("Empty username")
}
privateKey, err := helper.GetValidPrivateKey(info.IpAddr, 22, info.Username, "")
if err != nil {
return nil, errors.Wrap(err, "get cloud admin private key")
}
file, err := ioutil.TempFile("", fmt.Sprintf("id_rsa.%s.", info.IpAddr))
if err != nil {
return nil, err
}
defer file.Close()
filename := file.Name()
{
err = os.Chmod(filename, 0600)
if err != nil {
return nil, err
}
_, err = file.Write([]byte(privateKey))
if err != nil {
return nil, err
}
}
env := map[string]string{
"OS_AUTH_TOKEN": s.GetToken().GetTokenString(),
"OS_PROJECT_NAME": s.GetProjectName(),
"OS_PROJECT_DOMAIN": s.GetProjectDomain(),
"YUNION_USE_CACHED_TOKEN": "false",
"OS_TRY_TERM_WIDTH": "false",
}
envCmd := ""
for k, v := range env {
envCmd = fmt.Sprintf("%s export %s=%s", envCmd, k, v)
}
sshArgs := []string{
"-t", // force pseudo-terminal allocation
"-o", "StrictHostKeyChecking=no",
"-i", filename,
fmt.Sprintf("%s@%s", info.Username, info.IpAddr),
fmt.Sprintf("'%s && exec bash'", envCmd),
}
sshCmd := fmt.Sprintf("ssh %s", strings.Join(sshArgs, " "))
args := []string{"-c", sshCmd}
bCmd := NewBaseCommand(s, "bash", args...)
cmd := &ClimcSshCommand{
BaseCommand: bCmd,
Info: info,
s: s,
keyFile: filename,
buffer: []byte{},
}
return cmd, nil
}
func (c ClimcSshCommand) GetCommand() *exec.Cmd {
cmd := c.BaseCommand.GetCommand()
cmd.Env = append(cmd.Env, "TERM=xterm-256color")
return cmd
}
func (c ClimcSshCommand) GetProtocol() string {
return PROTOCOL_TTY
}
func (c ClimcSshCommand) Cleanup() error {
if len(c.keyFile) > 0 {
os.Remove(c.keyFile)
c.keyFile = ""
}
return nil
}
func (c *ClimcSshCommand) Scan(d byte, send func(msg string)) {
switch d {
case '\r': // 换行
send("\r\n")
c.buffer = []byte{}
case '\u007f': // 退格
if len(c.buffer) > 0 {
c.buffer = c.buffer[:len(c.buffer)-1]
send("\b \b")
}
default:
c.buffer = append(c.buffer, d)
}
}