/**
 * Used to check if we have to LazyLoad this or not
 *
 * @since 2.5.5	 Don't apply LazyLoad on images from WP Retina x2
 * @since 2.5	 Don't apply LazyLoad on all images from LayerSlider
 * @since 2.4.2	 Don't apply LazyLoad on all images from Media Grid
 * @since 2.3.11 Don't apply LazyLoad on all images from Timthumb
 * @since 2.3.10 Don't apply LazyLoad on all images from Revolution Slider & Justified Image Grid
 * @since 2.3.8  Don't apply LazyLoad on captcha from Really Simple CAPTCHA
 * @since 2.2
 */
function __rocket_lazyload_replace_callback($matches)
{
    // Don't apply LazyLoad on images from WP Retina x2
    if (function_exists('wr2x_picture_rewrite')) {
        if (wr2x_get_retina(trailingslashit(ABSPATH) . wr2x_get_pathinfo_from_image_src(trim($matches[2], '"')))) {
            return $matches[0];
        }
    }
    // TO DO - improve this code with a preg_match - it's ugly!!!!
    if (strpos($matches[1] . $matches[3], 'data-no-lazy=') === false && strpos($matches[1] . $matches[3], 'data-lazy-original=') === false && strpos($matches[1] . $matches[3], 'data-lazy-src=') === false && strpos($matches[1] . $matches[3], 'data-lazysrc=') === false && strpos($matches[1] . $matches[3], 'data-src=') === false && strpos($matches[1] . $matches[3], 'data-lazyload=') === false && strpos($matches[1] . $matches[3], 'data-bgposition=') === false && strpos($matches[2], '/wpcf7_captcha/') === false && strpos($matches[2], 'timthumb.php?src') === false && strpos($matches[1] . $matches[3], 'data-envira-src=') === false && strpos($matches[1] . $matches[3], 'fullurl=') === false && strpos($matches[1] . $matches[3], 'lazy-slider-img=') === false && strpos($matches[1] . $matches[3], 'srcset=') === false) {
        /**
         * Filter the LazyLoad placeholder on src attribute
         *
         * @since 2.6
         *
         * @param string Output that will be printed
         */
        $placeholder = apply_filters('rocket_lazyload_placeholder', 'data:image/gif;base64,R0lGODdhAQABAPAAAP///wAAACwAAAAAAQABAEACAkQBADs=');
        $html = sprintf('<img%1$s src="%4$s" data-lazy-src=%2$s%3$s><noscript><img%1$s src=%2$s%3$s></noscript>', $matches[1], $matches[2], $matches[3], $placeholder);
        /**
         * Filter the LazyLoad HTML output on images
         *
         * @since 2.3.8
         *
         * @param string $html Output that will be printed
         */
        $html = apply_filters('rocket_lazyload_html', $html, true);
        return $html;
    } else {
        return $matches[0];
    }
}

//.........这里部分代码省略.........
                        }
                    }
                    if (!empty($already_optimized)) {
                        $ewww_debug .= "updating existing record, path: {$ims_path}, size: " . $image_size . "<br>";
                        // store info on the current image for future reference
                        $wpdb->update($wpdb->ewwwio_images, array('path' => $ims_path), array('id' => $already_optimized['id']));
                        $base_dir = $base_ims_dir;
                    }
                }
            }
            // initialize $dup_size
            $dup_size = false;
            // check through all the sizes we've processed so far
            foreach ($processed as $proc => $scan) {
                // if a previous resize had identical dimensions
                if ($scan['height'] == $data['height'] && $scan['width'] == $data['width']) {
                    // found a duplicate resize
                    $dup_size = true;
                    // point this resize at the same image as the previous one
                    $meta['sizes'][$size]['file'] = $meta['sizes'][$proc]['file'];
                    // and tell the user we didn't do any further optimization
                    $meta['sizes'][$size]['ewww_image_optimizer'] = __('No savings', EWWW_IMAGE_OPTIMIZER_DOMAIN);
                }
            }
            // if this is a unique size
            if (!$dup_size) {
                $resize_path = $base_dir . $data['file'];
                // run the optimization and store the results
                list($optimized_file, $results, $resize_conv, $original) = ewww_image_optimizer($resize_path, $gallery_type, $conv, $new_image);
                // if the resize was converted, store the result and the original filename in the metadata for later recovery
                if ($resize_conv) {
                    // if we don't already have the update attachment filter
                    if (FALSE === has_filter('wp_update_attachment_metadata', 'ewww_image_optimizer_update_attachment')) {
                        // add the update attachment filter
                        add_filter('wp_update_attachment_metadata', 'ewww_image_optimizer_update_attachment', 10, 2);
                    }
                    $meta['sizes'][$size]['converted'] = 1;
                    $meta['sizes'][$size]['orig_file'] = str_replace($base_dir, '', $original);
                    $ewww_debug .= "original filename: {$original}<br>";
                    $meta['sizes'][$size]['real_orig_file'] = str_replace($base_dir, '', $resize_path);
                    $ewww_debug .= "resize path: {$resize_path}<br>";
                }
                if ($optimized_file !== false) {
                    // update the filename
                    $meta['sizes'][$size]['file'] = str_replace($base_dir, '', $optimized_file);
                }
                // update the optimization results
                $meta['sizes'][$size]['ewww_image_optimizer'] = $results;
                // optimize retina images, if they exist
                if (function_exists('wr2x_get_retina') && ($retina_path = wr2x_get_retina($resize_path))) {
                    ewww_image_optimizer($retina_path, 4, false, false);
                }
            }
            // store info on the sizes we've processed, so we can check the list for duplicate sizes
            $processed[$size]['width'] = $data['width'];
            $processed[$size]['height'] = $data['height'];
        }
    }
    if (!empty($new_image)) {
        $meta = ewww_image_optimizer_update_attachment_metadata($meta, $ID);
    }
    if (!preg_match('/' . __('Previously Optimized', EWWW_IMAGE_OPTIMIZER_DOMAIN) . '/', $meta['ewww_image_optimizer']) && class_exists('Amazon_S3_And_CloudFront')) {
        global $as3cf;
        if (method_exists($as3cf, 'wp_update_attachment_metadata')) {
            $as3cf->wp_update_attachment_metadata($meta, $ID);
        } elseif (method_exists($as3cf, 'wp_generate_attachment_metadata')) {
            $as3cf->wp_generate_attachment_metadata($meta, $ID);
        }
        $ewww_debug .= 'uploading to Amazon S3<br>';
    }
    if (class_exists('Cloudinary') && Cloudinary::config_get("api_secret") && ewww_image_optimizer_get_option('ewww_image_optimizer_enable_cloudinary') && !empty($new_image)) {
        try {
            $result = CloudinaryUploader::upload($file, array('use_filename' => True));
        } catch (Exception $e) {
            $error = $e->getMessage();
        }
        if (!empty($error)) {
            $ewww_debug .= "Cloudinary error: {$error}<br>";
        } else {
            $ewww_debug .= "successfully uploaded to Cloudinary<br>";
            // register the attachment in the database as a cloudinary attachment
            $old_url = wp_get_attachment_url($ID);
            wp_update_post(array('ID' => $ID, 'guid' => $result['url']));
            update_attached_file($ID, $result['url']);
            $meta['cloudinary'] = TRUE;
            $errors = array();
            // update the image location for the attachment
            CloudinaryPlugin::update_image_src_all($ID, $result, $old_url, $result["url"], TRUE, $errors);
            if (count($errors) > 0) {
                $ewww_debug .= "Cannot migrate the following posts:<br>" . implode("<br>", $errors);
            }
        }
    }
    if ($log) {
        ewww_image_optimizer_debug_log();
    }
    ewwwio_memory(__FUNCTION__);
    // send back the updated metadata
    return $meta;
}

function wr2x_get_retina_from_url($url)
{
    wr2x_log("[GRFU] From URL: " . $url, true);
    $filepath = wr2x_from_url_to_system($url);
    if (empty($filepath)) {
        wr2x_log("[GRFU] To PATH: Not found", true);
        return null;
    }
    wr2x_log("[GRFU] To PATH: " . $filepath, true);
    $system_retina = wr2x_get_retina($filepath);
    if (empty($system_retina)) {
        wr2x_log("[GRFU] To Retina PATH: Not found", true);
        return null;
    }
    wr2x_log("[GRFU]To Retina PATH: " . $system_retina, true);
    $retina_url = wr2x_rewrite_url_to_retina($url);
    wr2x_log("[GRFU]To Retina URL: " . $retina_url, true);
    return $retina_url;
}

function wr2x_html_rewrite($buffer)
{
    if (!isset($buffer) || trim($buffer) === '') {
        return $buffer;
    }
    $doc = new DOMDocument();
    @$doc->loadHTML($buffer);
    // = ($doc->strictErrorChecking = false;)
    $imageTags = $doc->getElementsByTagName('img');
    foreach ($imageTags as $tag) {
        //$img_info = parse_url( $tag->getAttribute('src') );
        //$img_pathinfo = ltrim( $img_info['path'], '/' );
        $img_pathinfo = wr2x_get_pathinfo_from_image_src($tag->getAttribute('src'));
        $filepath = trailingslashit(ABSPATH) . $img_pathinfo;
        $potential_retina = wr2x_get_retina($filepath);
        if ($potential_retina != null) {
            wr2x_log("Rewrite '{$filepath}' to '{$potential_retina}'.");
            $retina_pathinfo = ltrim(str_replace(ABSPATH, "", $potential_retina), '/');
            $buffer = str_replace($img_pathinfo, $retina_pathinfo, $buffer);
        }
    }
    return $buffer;
}

//.........这里部分代码省略.........
            // if this is a unique size
            if (!$dup_size) {
                $resize_path = $base_dir . $data['file'];
                // run the optimization and store the results
                if ($parallel_opt) {
                    touch($resize_path . '.processing');
                    $async_path = str_replace($upload_path, '', $resize_path);
                    add_filter('http_headers_useragent', 'ewww_image_optimizer_cloud_useragent', PHP_INT_MAX);
                    $ewwwio_async_optimize_media->data(array('ewwwio_path' => $async_path, 'ewwwio_size' => $size, 'ewww_force' => $force))->dispatch();
                    $parallel_sizes[$size] = $resize_path;
                } else {
                    list($optimized_file, $results, $resize_conv, $original) = ewww_image_optimizer($resize_path, $gallery_type, $conv, $new_image);
                    // if the resize was converted, store the result and the original filename in the metadata for later recovery
                    if ($resize_conv) {
                        // if we don't already have the update attachment filter
                        if (FALSE === has_filter('wp_update_attachment_metadata', 'ewww_image_optimizer_update_attachment')) {
                            // add the update attachment filter
                            add_filter('wp_update_attachment_metadata', 'ewww_image_optimizer_update_attachment', 10, 2);
                        }
                        $meta['sizes'][$size]['converted'] = 1;
                        $meta['sizes'][$size]['orig_file'] = str_replace($base_dir, '', $original);
                        ewwwio_debug_message("original filename: {$original}");
                        $meta['sizes'][$size]['real_orig_file'] = str_replace($base_dir, '', $resize_path);
                        ewwwio_debug_message("resize path: {$resize_path}");
                    }
                    if ($optimized_file !== false) {
                        // update the filename
                        $meta['sizes'][$size]['file'] = str_replace($base_dir, '', $optimized_file);
                    }
                    // update the optimization results
                    $meta['sizes'][$size]['ewww_image_optimizer'] = $results;
                }
                // optimize retina images, if they exist
                if (function_exists('wr2x_get_retina') && ($retina_path = wr2x_get_retina($resize_path))) {
                    if ($parallel_opt) {
                        add_filter('http_headers_useragent', 'ewww_image_optimizer_cloud_useragent', PHP_INT_MAX);
                        $async_path = str_replace($upload_path, '', $retina_path);
                        $ewwwio_async_optimize_media->data(array('path' => $async_path, 'size' => '', 'ewww_force' => $force))->dispatch();
                    } else {
                        ewww_image_optimizer($retina_path);
                    }
                } else {
                    ewww_image_optimizer_hidpi_optimize($resize_path);
                }
            }
            // store info on the sizes we've processed, so we can check the list for duplicate sizes
            $processed[$size]['width'] = $data['width'];
            $processed[$size]['height'] = $data['height'];
        }
    }
    if (!empty($new_dimensions)) {
        $prev_string = " - " . __('Previously Optimized', EWWW_IMAGE_OPTIMIZER_DOMAIN);
        $meta['ewww_image_optimizer'] = preg_replace("/{$prev_string}/", '', $meta['ewww_image_optimizer']);
    }
    // process size from a custom theme
    if (isset($meta['image_meta']['resized_images'])) {
        $imagemeta_resize_pathinfo = pathinfo($file_path);
        $imagemeta_resize_path = '';
        foreach ($meta['image_meta']['resized_images'] as $imagemeta_resize) {
            $imagemeta_resize_path = $imagemeta_resize_pathinfo['dirname'] . '/' . $imagemeta_resize_pathinfo['filename'] . '-' . $imagemeta_resize . '.' . $imagemeta_resize_pathinfo['extension'];
            if ($parallel_opt) {
                add_filter('http_headers_useragent', 'ewww_image_optimizer_cloud_useragent', PHP_INT_MAX);
                $async_path = str_replace($upload_path, '', $imagemeta_resize_path);
                $ewwwio_async_optimize_media->data(array('path' => $async_path, 'size' => '', 'ewww_force' => $force))->dispatch();
            } else {
                ewww_image_optimizer($imagemeta_resize_path);

 private function parse_tiny_metadata($tiny_metadata)
 {
     if (is_null($tiny_metadata)) {
         $tiny_metadata = get_post_meta($this->id, self::META_KEY, true);
     }
     if ($tiny_metadata) {
         foreach ($tiny_metadata as $size => $meta) {
             if (!isset($this->sizes[$size])) {
                 if (self::is_retina($size) && Tiny_Settings::wr2x_active()) {
                     $retina_path = wr2x_get_retina($this->sizes[rtrim($size, '_wr2x')]->filename);
                     $this->sizes[$size] = new Tiny_Image_Size($retina_path);
                 } else {
                     $this->sizes[$size] = new Tiny_Image_Size();
                 }
             }
             $this->sizes[$size]->meta = $meta;
         }
     }
 }