示例#1
0
func SaveImageToQiniu(m *models.Image, r goio.ReadSeeker, mime string, filename string, created time.Time, bucketName string) error {
	var ext string

	// check image mime type
	switch mime {
	case "image/jpeg":
		ext = ".jpg"

	case "image/png":
		ext = ".png"

	case "image/gif":
		ext = ".gif"

	default:
		ext = filepath.Ext(filename)
		switch ext {
		case ".jpg", ".png", ".gif":
		default:
			return fmt.Errorf("unsupport image format `%s`", filename)
		}
	}

	// decode image
	var img image.Image
	var err error
	switch ext {
	case ".jpg":
		m.Ext = 1
		img, err = jpeg.Decode(r)
	case ".png":
		m.Ext = 2
		img, err = png.Decode(r)
	case ".gif":
		m.Ext = 3
		img, err = gif.Decode(r)
	}

	if err != nil {
		return err
	}

	m.Width = img.Bounds().Dx()
	m.Height = img.Bounds().Dy()
	m.Created = created

	//save to database
	if err := m.Insert(); err != nil || m.Id <= 0 {
		return err
	}

	m.Token = m.GetToken()
	if err := m.Update(); err != nil {
		return err
	}

	var key = m.Token

	//reset reader pointer
	if _, err := r.Seek(0, 0); err != nil {
		return err
	}

	//save to qiniu
	var uptoken = utils.GetQiniuUptoken(bucketName)
	var putRet io.PutRet
	var putExtra = &io.PutExtra{
		MimeType: mime,
	}

	err = io.Put(nil, &putRet, uptoken, key, r, putExtra)
	if err != nil {
		return err
	}

	return nil
}
示例#2
0
文件: storage.go 项目: varding/wetalk
func SaveImage(m *models.Image, r io.ReadSeeker, mime string, filename string, created time.Time) error {
	var ext string

	// test image mime type
	switch mime {
	case "image/jpeg":
		ext = ".jpg"

	case "image/png":
		ext = ".png"

	case "image/gif":
		ext = ".gif"

	default:
		ext = filepath.Ext(filename)
		switch ext {
		case ".jpg", ".png", ".gif":
		default:
			return fmt.Errorf("unsupport image format `%s`", filename)
		}
	}

	// decode image
	var img image.Image
	var err error
	switch ext {
	case ".jpg":
		m.Ext = 1
		img, err = jpeg.Decode(r)
	case ".png":
		m.Ext = 2
		img, err = png.Decode(r)
	case ".gif":
		m.Ext = 3
		img, err = gif.Decode(r)
	}

	if err != nil {
		return err
	}

	m.Width = img.Bounds().Dx()
	m.Height = img.Bounds().Dy()
	m.Created = created

	if err := m.Insert(); err != nil || m.Id <= 0 {
		return err
	}

	m.Token = m.GetToken()
	if err := m.Update(); err != nil {
		return err
	}

	path := GenImagePath(m)
	os.MkdirAll(path, 0755)

	fullPath := GenImageFilePath(m, 0)
	if _, err := r.Seek(0, 0); err != nil {
		return err
	}

	var file *os.File
	if f, err := os.OpenFile(fullPath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644); err != nil {
		return err
	} else {
		file = f
	}

	if _, err := io.Copy(file, r); err != nil {
		os.RemoveAll(fullPath)
		return err
	}

	if ext != ".gif" {

		if m.Width > setting.ImageSizeSmall {
			if err := ImageResize(m, img, setting.ImageSizeSmall); err != nil {
				os.RemoveAll(fullPath)
				return err
			}
		}

		if m.Width > setting.ImageSizeMiddle {
			if err := ImageResize(m, img, setting.ImageSizeMiddle); err != nil {
				os.RemoveAll(fullPath)
				return err
			}
		}

	}

	return nil
}