alist/drivers/smb/util.go

139 lines
2.6 KiB
Go

package smb
import (
"github.com/alist-org/alist/v3/pkg/utils"
"io/fs"
"net"
"os"
"path/filepath"
"sync/atomic"
"time"
"github.com/hirochachacha/go-smb2"
)
func (d *SMB) updateLastConnTime() {
atomic.StoreInt64(&d.lastConnTime, time.Now().Unix())
}
func (d *SMB) cleanLastConnTime() {
atomic.StoreInt64(&d.lastConnTime, 0)
}
func (d *SMB) getLastConnTime() time.Time {
return time.Unix(atomic.LoadInt64(&d.lastConnTime), 0)
}
func (d *SMB) initFS() error {
conn, err := net.Dial("tcp", d.Address)
if err != nil {
return err
}
dialer := &smb2.Dialer{
Initiator: &smb2.NTLMInitiator{
User: d.Username,
Password: d.Password,
},
}
s, err := dialer.Dial(conn)
if err != nil {
return err
}
d.fs, err = s.Mount(d.ShareName)
if err != nil {
return err
}
d.updateLastConnTime()
return err
}
func (d *SMB) checkConn() error {
if time.Since(d.getLastConnTime()) < 5*time.Minute {
return nil
}
if d.fs != nil {
_ = d.fs.Umount()
}
return d.initFS()
}
// CopyFile File copies a single file from src to dst
func (d *SMB) CopyFile(src, dst string) error {
var err error
var srcfd *smb2.File
var dstfd *smb2.File
var srcinfo fs.FileInfo
if srcfd, err = d.fs.Open(src); err != nil {
return err
}
defer srcfd.Close()
if dstfd, err = d.CreateNestedFile(dst); err != nil {
return err
}
defer dstfd.Close()
if _, err = utils.CopyWithBuffer(dstfd, srcfd); err != nil {
return err
}
if srcinfo, err = d.fs.Stat(src); err != nil {
return err
}
return d.fs.Chmod(dst, srcinfo.Mode())
}
// CopyDir Dir copies a whole directory recursively
func (d *SMB) CopyDir(src string, dst string) error {
var err error
var fds []fs.FileInfo
var srcinfo fs.FileInfo
if srcinfo, err = d.fs.Stat(src); err != nil {
return err
}
if err = d.fs.MkdirAll(dst, srcinfo.Mode()); err != nil {
return err
}
if fds, err = d.fs.ReadDir(src); err != nil {
return err
}
for _, fd := range fds {
srcfp := filepath.Join(src, fd.Name())
dstfp := filepath.Join(dst, fd.Name())
if fd.IsDir() {
if err = d.CopyDir(srcfp, dstfp); err != nil {
return err
}
} else {
if err = d.CopyFile(srcfp, dstfp); err != nil {
return err
}
}
}
return nil
}
// Exists determine whether the file exists
func (d *SMB) Exists(name string) bool {
if _, err := d.fs.Stat(name); err != nil {
if os.IsNotExist(err) {
return false
}
}
return true
}
// CreateNestedFile create nested file
func (d *SMB) CreateNestedFile(path string) (*smb2.File, error) {
basePath := filepath.Dir(path)
if !d.Exists(basePath) {
err := d.fs.MkdirAll(basePath, 0700)
if err != nil {
return nil, err
}
}
return d.fs.Create(path)
}