mirror of https://github.com/jlelse/GoBlog
13 changed files with 184 additions and 86 deletions
@ -0,0 +1,125 @@
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package main |
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import ( |
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"errors" |
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"fmt" |
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"io" |
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"os" |
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"path/filepath" |
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"strings" |
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"time" |
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"github.com/jlaffaye/ftp" |
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) |
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type mediaStorageSaveFunc func(filename string, file io.Reader) (location string, err error) |
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func (a *goBlog) saveMediaFile(filename string, f io.Reader) (string, error) { |
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a.mediaStorageInit.Do(func() { |
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type initFunc func() mediaStorage |
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for _, fc := range []initFunc{a.initBunnyCdnMediaStorage, a.initFtpMediaStorage, a.initLocalMediaStorage} { |
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a.mediaStorage = fc() |
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if a.mediaStorage != nil { |
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break |
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} |
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} |
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}) |
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if a.mediaStorage == nil { |
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return "", errors.New("no media storage configured") |
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} |
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loc, err := a.mediaStorage.save(filename, f) |
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if err != nil { |
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return "", err |
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} |
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return a.getFullAddress(loc), nil |
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} |
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type mediaStorage interface { |
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save(filename string, file io.Reader) (location string, err error) |
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} |
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type localMediaStorage struct { |
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mediaURL string // optional
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} |
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func (a *goBlog) initLocalMediaStorage() mediaStorage { |
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ms := &localMediaStorage{} |
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if config := a.cfg.Micropub.MediaStorage; config != nil && config.MediaURL != "" { |
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ms.mediaURL = config.MediaURL |
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} |
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return ms |
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} |
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func (l *localMediaStorage) save(filename string, file io.Reader) (location string, err error) { |
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if err = os.MkdirAll(mediaFilePath, 0644); err != nil { |
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return "", err |
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} |
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newFile, err := os.Create(filepath.Join(mediaFilePath, filename)) |
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if err != nil { |
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return "", err |
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} |
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if _, err = io.Copy(newFile, file); err != nil { |
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return "", err |
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} |
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if l.mediaURL != "" { |
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return fmt.Sprintf("%s/%s", l.mediaURL, filename), nil |
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} |
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return fmt.Sprintf("/m/%s", filename), nil |
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} |
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func (a *goBlog) initBunnyCdnMediaStorage() mediaStorage { |
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config := a.cfg.Micropub.MediaStorage |
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if config == nil || config.BunnyStorageName == "" || config.BunnyStorageKey == "" || config.MediaURL == "" { |
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return nil |
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} |
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address := "storage.bunnycdn.com:21" |
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if config.BunnyStorageRegion != "" { |
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address = fmt.Sprintf("%s.%s", strings.ToLower(config.BunnyStorageRegion), address) |
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} |
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return &ftpMediaStorage{ |
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address: address, |
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user: config.BunnyStorageName, |
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password: config.BunnyStorageKey, |
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mediaURL: config.MediaURL, |
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} |
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} |
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type ftpMediaStorage struct { |
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address string // required
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user string // required
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password string // required
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mediaURL string // required
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} |
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func (a *goBlog) initFtpMediaStorage() mediaStorage { |
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config := a.cfg.Micropub.MediaStorage |
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if config == nil || config.FTPAddress == "" || config.FTPUser == "" || config.FTPPassword == "" { |
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return nil |
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} |
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return &ftpMediaStorage{ |
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address: config.FTPAddress, |
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user: config.FTPUser, |
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password: config.FTPPassword, |
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mediaURL: config.MediaURL, |
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} |
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} |
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func (f *ftpMediaStorage) save(filename string, file io.Reader) (location string, err error) { |
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if f.address == "" || f.user == "" || f.password == "" { |
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return "", errors.New("missing FTP config") |
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} |
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c, err := ftp.Dial(f.address, ftp.DialWithTimeout(5*time.Second)) |
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if err != nil { |
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return "", err |
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} |
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defer func() { |
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_ = c.Quit() |
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}() |
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if err = c.Login(f.user, f.password); err != nil { |
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return "", err |
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} |
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if err = c.Stor(filename, file); err != nil { |
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return "", err |
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} |
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return fmt.Sprintf("%s/%s", f.mediaURL, filename), nil |
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} |
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