149 lines
2.9 KiB
Go
149 lines
2.9 KiB
Go
package utils
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import (
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"fmt"
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"io"
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"io/ioutil"
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"mime"
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/alist-org/alist/v3/internal/conf"
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log "github.com/sirupsen/logrus"
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)
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// CopyFile File copies a single file from src to dst
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func CopyFile(src, dst string) error {
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var err error
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var srcfd *os.File
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var dstfd *os.File
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var srcinfo os.FileInfo
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if srcfd, err = os.Open(src); err != nil {
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return err
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}
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defer srcfd.Close()
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if dstfd, err = CreateNestedFile(dst); err != nil {
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return err
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}
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defer dstfd.Close()
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if _, err = io.Copy(dstfd, srcfd); err != nil {
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return err
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}
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if srcinfo, err = os.Stat(src); err != nil {
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return err
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}
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return os.Chmod(dst, srcinfo.Mode())
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}
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// CopyDir Dir copies a whole directory recursively
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func CopyDir(src string, dst string) error {
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var err error
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var fds []os.FileInfo
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var srcinfo os.FileInfo
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if srcinfo, err = os.Stat(src); err != nil {
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return err
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}
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if err = os.MkdirAll(dst, srcinfo.Mode()); err != nil {
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return err
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}
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if fds, err = ioutil.ReadDir(src); err != nil {
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return err
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}
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for _, fd := range fds {
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srcfp := path.Join(src, fd.Name())
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dstfp := path.Join(dst, fd.Name())
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if fd.IsDir() {
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if err = CopyDir(srcfp, dstfp); err != nil {
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fmt.Println(err)
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}
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} else {
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if err = CopyFile(srcfp, dstfp); err != nil {
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fmt.Println(err)
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}
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}
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}
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return nil
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}
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// Exists determine whether the file exists
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func Exists(name string) bool {
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if _, err := os.Stat(name); err != nil {
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if os.IsNotExist(err) {
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return false
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}
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}
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return true
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}
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// CreateNestedFile create nested file
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func CreateNestedFile(path string) (*os.File, error) {
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basePath := filepath.Dir(path)
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if !Exists(basePath) {
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err := os.MkdirAll(basePath, 0700)
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if err != nil {
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log.Errorf("can't create foler，%s", err)
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return nil, err
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}
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}
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return os.Create(path)
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}
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// CreateTempFile create temp file from io.ReadCloser, and seek to 0
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func CreateTempFile(r io.ReadCloser) (*os.File, error) {
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if f, ok := r.(*os.File); ok {
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return f, nil
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}
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f, err := os.CreateTemp(conf.Conf.TempDir, "file-*")
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if err != nil {
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return nil, err
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}
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_, err = io.Copy(f, r)
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if err != nil {
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_ = os.Remove(f.Name())
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return nil, err
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}
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_, err = f.Seek(0, io.SeekStart)
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if err != nil {
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_ = os.Remove(f.Name())
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return nil, err
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}
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return f, nil
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}
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// GetFileType get file type
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func GetFileType(filename string) int {
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ext := strings.ToLower(Ext(filename))
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//if SliceContains(conf.TypesMap[conf.OfficeTypes], ext) {
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// return conf.OFFICE
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//}
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if SliceContains(conf.TypesMap[conf.AudioTypes], ext) {
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return conf.AUDIO
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}
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if SliceContains(conf.TypesMap[conf.VideoTypes], ext) {
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return conf.VIDEO
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}
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if SliceContains(conf.TypesMap[conf.ImageTypes], ext) {
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return conf.IMAGE
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}
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if SliceContains(conf.TypesMap[conf.TextTypes], ext) {
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return conf.TEXT
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}
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return conf.UNKNOWN
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}
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func GetMimeType(name string) string {
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ext := path.Ext(name)
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m := mime.TypeByExtension(ext)
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if m != "" {
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return m
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}
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return "application/octet-stream"
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}
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