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<?php namespace ExternalImporter\application; defined('\ABSPATH') \|\| exit; use ExternalImporter\application\admin\WooConfig; use ExternalImporter\application\components\WooImporter; use function ExternalImporter\prnx; /** * ExternalImage class file * * @author keywordrush.com <support@keywordrush.com> * @link https://www.keywordrush.com * @copyright Copyright © 2025 keywordrush.com */ class ExternalImage { const EXTERNAL_URL_META = '_ei_external_thumbnails'; const FAKE_INT_START = '99998'; public static function initAction() { self::initFeaturedImage(); self::initGallery(); } public static function initFeaturedImage() { if (in_array(WooConfig::getInstance()->option('import_image'), array('disabled', 'enabled'))) return; \add_filter("get_post_metadata", array(__CLASS__, 'getFakeThumbnailId'), 10, 4); if (\is_admin()) \add_filter('admin_post_thumbnail_html', array(__CLASS__, 'adminThumbnail')); \add_filter('wp_get_attachment_image_src', array(__CLASS__, 'replaceImageSrc'), 10, 4); \add_filter('woocommerce_product_get_image_id', array(__CLASS__, 'getFakeImageId'), 99, 2); \add_filter('post_thumbnail_html', array(__CLASS__, 'replaceThumbnail'), 10, 5); \add_action('woocommerce_structured_data_product', array(__CLASS__, 'addStructuredDataProduct'), 10, 2); \add_action('wpseo_add_opengraph_images', array(__CLASS__, 'addOpengraphImage')); } public static function initGallery() { if (in_array(WooConfig::getInstance()->option('import_gallery'), array('disabled', 'enabled'))) return; \add_filter('wp_get_attachment_image_src', array(__CLASS__, 'replaceImageSrc'), 10, 4); \add_filter('woocommerce_product_get_gallery_image_ids', array(__CLASS__, 'getFakeGalleryIds'), 99, 2); } private static function generateFakeId($post_id, $image_key) { if ($image_key > 9) $image_key = 9; $max_len = strlen(strval(PHP_INT_MAX)) - 1; $post_id_len = strlen(strval($post_id)); $fake_id = self::FAKE_INT_START; $fake_id .= str_repeat('0', $max_len - $post_id_len - strlen($fake_id) - 1); $fake_id .= $post_id; $fake_id .= $image_key; return $fake_id; } private static function getRealId($post_id) { if (strlen(strval($post_id)) != strlen(strval(PHP_INT_MAX)) - 1) return false; if (substr((string) $post_id, 0, strlen(self::FAKE_INT_START)) != self::FAKE_INT_START) return false; $real = substr_replace((string) $post_id, '', 0, strlen(self::FAKE_INT_START)); $real = substr($real, 0, -1); return (int) $real; } private static function getRealImageKey($post_id) { $post_id = (string) $post_id; return (int) ($post_id[strlen($post_id) - 1]); } public static function maybeSetExternalFeaturedImage($objProduct, $img_url) { if (!$img_url) return false; $import_image = WooConfig::getInstance()->option('import_image'); if (in_array($import_image, array('disabled', 'enabled'))) return false; if ($import_image == 'internal_priority' && \has_post_thumbnail($objProduct->get_id())) return false; return self::updateExternalMeta($img_url, $objProduct->get_id(), 0); } public static function maybeSetExternalGallery($objProduct, array $img_urls) { if (!$img_urls) return false; $import_gallery = WooConfig::getInstance()->option('import_gallery'); if (in_array($import_gallery, array('disabled', 'enabled'))) return false; if ($import_gallery == 'internal_priority' && $objProduct->get_gallery_image_ids()) return false; $img_urls = array_values($img_urls); foreach ($img_urls as $key => $img_url) { self::updateExternalMeta($img_url, $objProduct->get_id(), $key + 1); } return true; } public static function updateExternalMeta($url, $post_id, $image_key = 0) { $meta = \get_post_meta($post_id, self::EXTERNAL_URL_META, true); if ($meta && isset($meta[$image_key]) && $meta[$image_key]['url'] == $url) return true; if (!$meta) $meta = array(); $meta[$image_key]['url'] = $url; $width = $height = 0; if (ini_get('allow_url_fopen')) list($width, $height) = @getimagesize($url); $meta[$image_key]['width'] = $width; $meta[$image_key]['height'] = $height; return \update_post_meta($post_id, self::EXTERNAL_URL_META, $meta); } public static function getExternalImageMeta($post_id, $image_key = 0) { if (!$meta = \get_post_meta($post_id, self::EXTERNAL_URL_META, true)) return false; if (isset($meta[$image_key])) return $meta[$image_key]; else return false; } public static function adminThumbnail($html) { global $post; if (empty($post) \|\| !$external_img = self::getExternalImageMeta($post->ID)) return $html; if (empty($external_img['url'])) return $html; $html .= '<div><img class="size-post-thumbnail" src="' . \esc_url($external_img['url']) . '">'; $html .= '<p class="howto">' . __('External featured image', 'external-importer') . '</p></div>'; return $html; } public static function getFakeImageId($value, $product) { $product_id = $product->get_id(); if (WooConfig::getInstance()->option('import_image') == 'internal_priority' && self::hasInternalImage($product_id)) return $value; $product_id = $product->get_id(); if (self::getExternalImageMeta($product_id)) return self::generateFakeId($product_id, 0); else return $value; } public static function getFakeThumbnailId($value, $object_id, $meta_key, $single) { if ($meta_key != '_thumbnail_id') return $value; if (WooConfig::getInstance()->option('import_image') == 'internal_priority' && self::hasInternalImage($object_id)) return $value; if (self::getExternalImageMeta($object_id)) return self::generateFakeId($object_id, 0); else return $value; } public static function getFakeGalleryIds($value, $objProduct) { $object_id = $objProduct->get_id(); if (WooConfig::getInstance()->option('import_gallery') == 'internal_priority' && self::hasInternalGallery($object_id)) return $value; $product = WooImporter::getProductMeta($object_id); if (empty($product->images) \|\| !is_array($product->images)) return array(); $product->images = array_slice($product->images, 0, 9); $value = array(); foreach ($product->images as $i => $image) { $image_key = $i + 1; $value[] = self::generateFakeId($object_id, $image_key); } return $value; } public static function replaceImageSrc($image, $attachment_id, $size, $icon) { if (!$post_id = self::getRealId($attachment_id)) return $image; $image_key = self::getRealImageKey($attachment_id); if (!$external_img = self::getExternalImageMeta($post_id, $image_key)) return $image; $external_url = $external_img['url']; if ($image_size = self::getImageSize($size)) return array($external_url, $image_size['width'], $image_size['height'], $image_size['crop']); else { if (!empty($external_img['width'])) $width = $external_img['width']; else $width = 800; if (!empty($external_img['height'])) $height = $external_img['height']; else $height = 600; return array($external_url, $width, $height, false); } } public static function getImageSize($size) { if (is_array($size)) { return array( 'width' => isset($size[0]) ? $size[0] : null, 'height' => isset($size[1]) ? $size[1] : null, 'crop' => isset($size[2]) ? $size[2] : null, ); } global $_wp_additional_image_sizes; if (isset($_wp_additional_image_sizes[$size])) return $_wp_additional_image_sizes[$size]; $default = array('thumbnail', 'medium', 'medium_large', 'large'); if (in_array($size, $default)) { return array( 'width' => \get_option("{$size}_size_w"), 'height' => \get_option("{$size}_size_h"), 'crop' => \get_option("{$size}_crop"), ); } return array(); } public static function replaceThumbnail($html, $post_id, $post_thumbnail_id, $size, $attr) { if (!$external_img = self::getExternalImageMeta($post_id)) return $html; if (WooConfig::getInstance()->option('import_image') == 'internal_priority' && self::hasInternalImage($post_id)) return $html; $url = $external_img['url']; $alt = \get_post_field('post_title', $post_id); $class = 'ei-external-img wp-post-image'; $attr = array('alt' => $alt, 'class' => $class); //$attr = \apply_filters('wp_get_attachment_image_attributes', $attr, $size); $attr = array_map('esc_attr', $attr); $html = sprintf('<img src="%s"', esc_url($url)); foreach ($attr as $name => $value) { $html .= " $name=" . '"' . $value . '"'; } $html .= ' />'; return $html; } public static function hasInternalImage($object_id) { return self::hasMeta($object_id, '_thumbnail_id'); } public static function hasInternalGallery($object_id) { return self::hasMeta($object_id, '_product_image_gallery'); } public static function hasMeta($object_id, $meta_key, $meta_type = 'post') { if (!$meta_cache = \wp_cache_get($object_id, $meta_type . '_meta')) { $meta_cache = \update_meta_cache($meta_type, array($object_id)); $meta_cache = $meta_cache[$object_id]; } if (isset($meta_cache[$meta_key])) $meta_value = $meta_cache[$meta_key][0]; else $meta_value = false; if ($meta_value) return true; else return false; } public static function getExternalUrl($post_id) { if (!$external_img = self::getExternalImageMeta($post_id, 0)) return false; return $external_img['url']; } public static function addStructuredDataProduct($markup, $product) { if (!empty($markup['image'])) return $markup; if (!$external_url = self::getExternalUrl($product->get_id())) return $markup; $markup['image'] = $external_url; return $markup; } public static function addOpengraphImage($object) { if (!$post_id = \get_the_ID()) return; if (!$external_url = self::getExternalUrl($post_id)) return; $object->add_image($external_url); } }

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