Function ExtractTelegraphImages

api/tphpics.go:15–47

ExtractTelegraphImages 从 Telegraph URL 提取图片

(ctx context.Context, pageURL string)

// ExtractTelegraphImages 从 Telegraph URL 提取图片
func ExtractTelegraphImages(ctx context.Context, pageURL string) ([]string, string, error) {
	logger := log.FromContext(ctx)

	// 验证 URL 格式
	if !isValidTelegraphURL(pageURL) {
		return nil, "", fmt.Errorf("invalid telegraph URL format: %s", pageURL)
	}

	// 解析 URL 获取页面路径
	pagepath, err := parseTelegraphPath(pageURL)
	if err != nil {
		return nil, "", err
	}

	logger.Debugf("Fetching telegraph page: %s", pagepath)

	client := telegraph.NewClient()
	page, err := client.GetPage(ctx, pagepath)
	if err != nil {
		return nil, "", fmt.Errorf("failed to get telegraph page: %w", err)
	}

	var imgs []string
	for _, elem := range page.Content {
		imgs = append(imgs, tphutil.GetNodeImages(elem)...)
	}

	if len(imgs) == 0 {
		return nil, "", fmt.Errorf("no images found in telegraph page")
	}

	return imgs, pagepath, nil
}

// parseTelegraphPath 解析 Telegraph URL 获取页面路径
func parseTelegraphPath(pageURL string) (string, error) {