idecnode/pkg/idec/files.go

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package idec
import (
"errors"
"io"
"os"
"path/filepath"
"strings"
"gitrepo.ru/neonxp/idecnode/pkg/model"
)
var ErrFileNotAllowed = errors.New("file not allowed")
func (i *IDEC) FilesList(pauth string) ([]model.File, error) {
fileDirs := i.allowedDirs(pauth)
res := []model.File{}
for _, dir := range fileDirs {
files, err := filepath.Glob(dir + "/*")
if err != nil {
return nil, err
}
for _, f := range files {
fi, err := os.Stat(f)
if err != nil {
return nil, err
}
res = append(res, model.File{
Name: fi.Name(),
Size: fi.Size(),
FullName: strings.TrimPrefix(f, i.config.FilesDirectory),
})
}
}
return res, nil
}
func (i *IDEC) GetFile(pauth string, path string, w io.Writer) error {
file := filepath.Clean(filepath.Join(i.config.FilesDirectory, path))
allowed := false
allowedDirs := i.allowedDirs(pauth)
for _, dir := range allowedDirs {
if filepath.HasPrefix(file, dir) {
allowed = true
}
}
if !allowed {
return ErrFileNotAllowed
}
fp, err := os.Open(file)
if err != nil {
return err
}
defer fp.Close()
_, err = io.Copy(w, fp)
return err
}
func (i *IDEC) allowedDirs(pauth string) []string {
fileDirs := []string{
filepath.Join(i.config.FilesDirectory, "pub"),
}
if pauth != "" {
if _, err := i.GetPointByAuth(pauth); err == nil {
fileDirs = append(fileDirs, filepath.Join(i.config.FilesDirectory, "priv"))
}
}
return fileDirs
}