1Panel/backend/utils/cloud_storage/client/sftp.go

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package client
import (
"fmt"
"io"
"net"
"os"
"path"
"time"
"github.com/pkg/sftp"
"golang.org/x/crypto/ssh"
)
type sftpClient struct {
bucket string
connInfo string
config *ssh.ClientConfig
}
func NewSftpClient(vars map[string]interface{}) (*sftpClient, error) {
address := loadParamFromVars("address", true, vars)
port := loadParamFromVars("port", false, vars)
password := loadParamFromVars("password", true, vars)
username := loadParamFromVars("username", true, vars)
bucket := loadParamFromVars("bucket", true, vars)
auth := []ssh.AuthMethod{ssh.Password(password)}
clientConfig := &ssh.ClientConfig{
User: username,
Auth: auth,
Timeout: 30 * time.Second,
HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
},
}
return &sftpClient{bucket: bucket, connInfo: fmt.Sprintf("%s:%s", address, port), config: clientConfig}, nil
}
func (s sftpClient) Upload(src, target string) (bool, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return false, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return false, err
}
defer client.Close()
defer sshClient.Close()
srcFile, err := os.Open(src)
if err != nil {
return false, err
}
defer srcFile.Close()
targetFilePath := path.Join(s.bucket, target)
targetDir, _ := path.Split(targetFilePath)
if _, err = client.Stat(targetDir); err != nil {
if os.IsNotExist(err) {
if err = client.MkdirAll(targetDir); err != nil {
return false, err
}
} else {
return false, err
}
}
dstFile, err := client.Create(path.Join(s.bucket, target))
if err != nil {
return false, err
}
defer dstFile.Close()
if _, err := io.Copy(dstFile, srcFile); err != nil {
return false, err
}
return true, nil
}
func (s sftpClient) ListBuckets() ([]interface{}, error) {
var result []interface{}
return result, nil
}
func (s sftpClient) Download(src, target string) (bool, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return false, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return false, err
}
defer client.Close()
defer sshClient.Close()
srcFile, err := client.Open(s.bucket + "/" + src)
if err != nil {
return false, err
}
defer srcFile.Close()
dstFile, err := os.Create(target)
if err != nil {
return false, err
}
defer dstFile.Close()
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if _, err = io.Copy(srcFile, dstFile); err != nil {
return false, err
}
return true, err
}
func (s sftpClient) Exist(filePath string) (bool, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return false, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return false, err
}
defer client.Close()
defer sshClient.Close()
srcFile, err := client.Open(path.Join(s.bucket, filePath))
if err != nil {
if os.IsNotExist(err) {
return false, nil
} else {
return false, err
}
}
defer srcFile.Close()
return true, err
}
func (s sftpClient) Size(filePath string) (int64, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return 0, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return 0, err
}
defer client.Close()
defer sshClient.Close()
files, err := client.Stat(path.Join(s.bucket, filePath))
if err != nil {
return 0, err
}
return files.Size(), nil
}
func (s sftpClient) Delete(filePath string) (bool, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return false, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return false, err
}
defer client.Close()
defer sshClient.Close()
if err := client.Remove(path.Join(s.bucket, filePath)); err != nil {
return false, err
}
return true, nil
}
func (s sftpClient) ListObjects(prefix string) ([]string, error) {
sshClient, err := ssh.Dial("tcp", s.connInfo, s.config)
if err != nil {
return nil, err
}
client, err := sftp.NewClient(sshClient)
if err != nil {
return nil, err
}
defer client.Close()
defer sshClient.Close()
files, err := client.ReadDir(path.Join(s.bucket, prefix))
if err != nil {
return nil, err
}
var result []string
for _, file := range files {
result = append(result, file.Name())
}
return result, nil
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}