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file.go
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file.go
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package upload
import (
"io"
"os"
"path"
)
type FileProvider struct {
BaseFolder string
}
func (f FileProvider) Put(namespace string, filename string, body io.Reader) (string, error) {
if _, err := os.Stat(f.BaseFolder); os.IsNotExist(err) {
return "", err
}
folder := path.Join(f.BaseFolder, namespace)
if err := f.existPath(folder); err != nil {
if err := os.MkdirAll(folder, os.ModePerm); err != nil {
return "", err
}
return "", err
}
fname := path.Join(folder, filename)
file, err := os.Create(fname)
if err != nil {
return "", err
}
if _, err = io.Copy(file, body); err != nil {
return "", err
}
return filename, nil
}
func (f FileProvider) Get(namespace string, id string) (io.ReadCloser, error) {
if _, err := os.Stat(f.BaseFolder); os.IsNotExist(err) {
return nil, err
}
fPath := path.Join(f.BaseFolder, namespace, id)
if err := f.existPath(fPath); err != nil {
return nil, err
}
file, err := os.Open(fPath)
if err != nil {
return nil, err
}
return file, nil
}
func (f FileProvider) existPath(p string) error {
if _, err := os.Stat(p); os.IsNotExist(err) {
return err
}
return nil
}