mirror of https://github.com/jlelse/GoBlog
126 lines
3.1 KiB
Go
126 lines
3.1 KiB
Go
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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