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storage_file.go
48 lines (39 loc) · 934 Bytes
/
storage_file.go
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package session
import (
"context"
"os"
"sync"
"github.com/go-faster/errors"
)
// FileStorage implements SessionStorage for file system as file
// stored in Path.
type FileStorage struct {
Path string
mux sync.Mutex
}
// LoadSession loads session from file.
func (f *FileStorage) LoadSession(_ context.Context) ([]byte, error) {
if f == nil {
return nil, errors.New("nil session storage is invalid")
}
f.mux.Lock()
defer f.mux.Unlock()
data, err := os.ReadFile(f.Path)
if os.IsNotExist(err) {
return nil, ErrNotFound
}
if err != nil {
return nil, errors.Wrap(err, "read")
}
return data, nil
}
// StoreSession stores session to file.
func (f *FileStorage) StoreSession(_ context.Context, data []byte) error {
if f == nil {
return errors.New("nil session storage is invalid")
}
f.mux.Lock()
defer f.mux.Unlock()
// TODO(tdakkota): use robustio/renameio?
return os.WriteFile(f.Path, data, 0600)
}