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157 lines
3.3 KiB
157 lines
3.3 KiB
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package storage
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import (
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"context"
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"io"
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"io/ioutil"
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"net/url"
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"os"
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"path/filepath"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/util"
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)
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var (
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_ ObjectStorage = &LocalStorage{}
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)
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// LocalStorageType is the type descriptor for local storage
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const LocalStorageType Type = "local"
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// LocalStorageConfig represents the configuration for a local storage
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type LocalStorageConfig struct {
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Path string `ini:"PATH"`
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TemporaryPath string `ini:"TEMPORARY_PATH"`
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}
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// LocalStorage represents a local files storage
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type LocalStorage struct {
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ctx context.Context
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dir string
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tmpdir string
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}
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// NewLocalStorage returns a local files
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func NewLocalStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error) {
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configInterface, err := toConfig(LocalStorageConfig{}, cfg)
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if err != nil {
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return nil, err
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}
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config := configInterface.(LocalStorageConfig)
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log.Info("Creating new Local Storage at %s", config.Path)
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if err := os.MkdirAll(config.Path, os.ModePerm); err != nil {
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return nil, err
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}
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if config.TemporaryPath == "" {
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config.TemporaryPath = config.Path + "/tmp"
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}
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return &LocalStorage{
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ctx: ctx,
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dir: config.Path,
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tmpdir: config.TemporaryPath,
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}, nil
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}
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// Open a file
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func (l *LocalStorage) Open(path string) (Object, error) {
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return os.Open(filepath.Join(l.dir, path))
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}
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// Save a file
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func (l *LocalStorage) Save(path string, r io.Reader, size int64) (int64, error) {
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p := filepath.Join(l.dir, path)
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if err := os.MkdirAll(filepath.Dir(p), os.ModePerm); err != nil {
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return 0, err
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}
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// Create a temporary file to save to
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if err := os.MkdirAll(l.tmpdir, os.ModePerm); err != nil {
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return 0, err
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}
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tmp, err := ioutil.TempFile(l.tmpdir, "upload-*")
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if err != nil {
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return 0, err
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}
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tmpRemoved := false
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defer func() {
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if !tmpRemoved {
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_ = util.Remove(tmp.Name())
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}
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}()
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n, err := io.Copy(tmp, r)
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if err != nil {
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return 0, err
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}
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if err := tmp.Close(); err != nil {
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return 0, err
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}
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if err := os.Rename(tmp.Name(), p); err != nil {
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return 0, err
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}
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tmpRemoved = true
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return n, nil
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}
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// Stat returns the info of the file
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func (l *LocalStorage) Stat(path string) (os.FileInfo, error) {
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return os.Stat(filepath.Join(l.dir, path))
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}
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// Delete delete a file
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func (l *LocalStorage) Delete(path string) error {
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p := filepath.Join(l.dir, path)
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return util.Remove(p)
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}
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// URL gets the redirect URL to a file
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func (l *LocalStorage) URL(path, name string) (*url.URL, error) {
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return nil, ErrURLNotSupported
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}
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// IterateObjects iterates across the objects in the local storage
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func (l *LocalStorage) IterateObjects(fn func(path string, obj Object) error) error {
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return filepath.Walk(l.dir, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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select {
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case <-l.ctx.Done():
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return l.ctx.Err()
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default:
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}
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if path == l.dir {
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return nil
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}
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if info.IsDir() {
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return nil
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}
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relPath, err := filepath.Rel(l.dir, path)
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if err != nil {
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return err
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}
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obj, err := os.Open(path)
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if err != nil {
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return err
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}
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defer obj.Close()
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return fn(relPath, obj)
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})
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}
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func init() {
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RegisterStorageType(LocalStorageType, NewLocalStorage)
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}
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