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<?php |
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if (!defined('ABSPATH')) |
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exit; |
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|
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if (class_exists('berqWP')) { |
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class berqImages extends berqWP |
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{ |
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function __construct() |
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{ |
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|
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// add_action('add_attachment', [$this, 'generate_webp_images']); |
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// add_filter('wp_calculate_image_srcset', [$this, 'replace_srcset_with_webp'], 999, 5); |
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|
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} |
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|
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function replace_srcset_with_webp($sources, $size_array, $image_src, $image_meta, $attachment_id) |
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{ |
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if (isset($_GET['creating_cache'])) { |
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foreach ($sources as &$source) { |
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|
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if ( |
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(stripos($source['url'], '.jpg') !== false || |
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stripos($source['url'], '.jpeg') !== false || |
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stripos($source['url'], '.png') !== false) && strpos($source['url'], get_site_url()) !== false |
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) { |
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$webp_url = str_replace(array('.jpg', '.jpeg', '.png'), '.webp', $source['url']); |
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$file_path = str_replace(get_site_url(), ABSPATH, $webp_url); |
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|
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if (!file_exists($file_path) && isset($_GET['creating_cache'])) { |
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$this->generate_webp_images($attachment_id); |
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} |
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|
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if (file_exists($file_path) && filesize($file_path) > 0) { |
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$source['url'] = $webp_url; |
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} |
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} |
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} |
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} |
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return $sources; |
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} |
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|
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function delete_generated_webp_images($attachment_id) |
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{ |
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$file = get_attached_file($attachment_id); |
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$file_info = pathinfo($file); |
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|
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// Check if the uploaded image is in a supported format |
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$supported_formats = array('jpg', 'jpeg', 'png'); |
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if (in_array(strtolower($file_info['extension']), $supported_formats)) { |
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// Get the available image sizes defined in WordPress settings |
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$image_sizes = get_intermediate_image_sizes(); |
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|
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// Generate webP version of the image for each size |
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foreach ($image_sizes as $size_name) { |
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if ($size = wp_get_attachment_image_src($attachment_id, $size_name)) { |
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$webp_file = $file_info['dirname'] . '/' . $file_info['filename'] . '-' . $size[1] . 'x' . $size[2] . '.webp'; |
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// var_dump($webp_file); |
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|
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if (file_exists($webp_file)) { |
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wp_delete_file($webp_file); |
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} |
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} |
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} |
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|
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// Generate webP version for the original size |
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$webp_file_original = $file_info['dirname'] . '/' . $file_info['filename'] . '.webp'; |
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|
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if (file_exists($webp_file_original)) { |
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wp_delete_file($webp_file_original); |
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} |
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} |
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|
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} |
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|
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function send_image_to_api($image_url, $quality, $maxwidth) |
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{ |
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// Define the API endpoint |
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$api_url = 'https://berqwp.com/wp-json/berqwp-api/webp'; |
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|
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// Use the following format for file uploads with wp_remote_post |
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$body = array( |
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'image' => $image_url, |
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'quality' => $quality, |
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'maxwidth' => $maxwidth |
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); |
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|
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// You don't need to manually set the Content-Type header to 'multipart/form-data'; |
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// wp_remote_post() will handle it for you when it detects you're sending files. |
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|
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// Send the request |
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$response = wp_remote_post( |
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$api_url, |
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array( |
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'body' => $body, |
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'timeout' => 45 // You can adjust the timeout as needed |
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) |
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); |
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|
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// Check for errors |
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if (is_wp_error($response)) { |
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$error_message = $response->get_error_message(); |
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return "Something went wrong: $error_message"; |
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} else { |
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return wp_remote_retrieve_body($response); |
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} |
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} |
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|
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function handle_not_webp($image_url, $quality, $max_width, $webp_path) |
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{ |
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|
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if (!function_exists('download_url')) { |
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require_once(ABSPATH . 'wp-admin/includes/file.php'); |
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} |
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|
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if (is_array($image_url)) { |
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$image_url = $image_url[0]; |
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} |
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|
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$resp = $this->send_image_to_api($image_url, $quality, $max_width); |
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|
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$json = json_decode($resp, true); |
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|
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if (empty($json['success']) || $json['success'] !== true) { |
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return false; |
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} |
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|
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// Use the WordPress function to download the file |
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$temp_file = download_url($json['webp_url']); |
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|
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// Check for errors |
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if (is_wp_error($temp_file)) { |
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return false; |
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} |
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|
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// Copy the temp file to the specified path |
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$result = copy($temp_file, $webp_path); |
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|
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// Clean up the temporary file |
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unlink($temp_file); |
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} |
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|
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function is_webp_supported() |
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{ |
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if (function_exists('imagewebp') && function_exists('imagecreatetruecolor')) { |
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$test_image = imagecreatetruecolor(1, 1); // Create a 1x1 blank image |
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|
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if ($test_image === false) { |
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return false; |
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} |
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|
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ob_start(); |
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$webp_support = imagewebp($test_image, null, 100); |
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ob_end_clean(); |
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imagedestroy($test_image); |
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|
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return $webp_support; |
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} |
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return false; |
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} |
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|
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|
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function generate_webp_images($attachment_id) |
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{ |
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$file = get_attached_file($attachment_id); |
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$file_info = pathinfo($file); |
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|
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// Check if the uploaded image is in a supported format |
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$supported_formats = array('jpg', 'jpeg', 'png'); |
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if (in_array(strtolower($file_info['extension']), $supported_formats)) { |
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// Get the available image sizes defined in WordPress settings |
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$image_sizes = get_intermediate_image_sizes(); |
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|
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// Set the quality of the image (optional) |
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$quality = (int) get_option('berqwp_webp_quality'); |
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$max_width = (int) get_option('berqwp_webp_max_width'); |
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|
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// Generate webP version of the image for each size |
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foreach ($image_sizes as $size_name) { |
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if ($size = wp_get_attachment_image_src($attachment_id, $size_name)) { |
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$image_url = wp_get_attachment_image_src($attachment_id, $size_name); |
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$webp_file = $file_info['dirname'] . '/' . $file_info['filename'] . '-' . $size[1] . 'x' . $size[2] . '.webp'; |
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|
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if (!file_exists($webp_file)) { |
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|
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// if webp generation is not supported |
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if (!$this->is_webp_supported()) { |
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$this->handle_not_webp($image_url, $quality, $max_width, $webp_file); |
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continue; |
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} |
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|
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// Load the original image |
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$image = null; |
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$extension = strtolower($file_info['extension']); |
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if ($extension === 'jpg' || $extension === 'jpeg') { |
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$image = imagecreatefromjpeg($file); |
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} elseif ($extension === 'png') { |
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$image = imagecreatefrompng($file); |
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|
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// // Preserve transparency for WebP conversion |
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// imagesavealpha($image, true); |
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// $transparentColor = imagecolorallocatealpha($image, 0, 0, 0, 127); |
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// imagefill($image, 0, 0, $transparentColor); |
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|
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|
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// Check if the PNG image has an alpha channel (transparency) |
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// $has_alpha = imagecolortransparent($image); |
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// if ($has_alpha || imagecolorstotal($image) > 256) { |
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// // Preserve transparency for WebP conversion |
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// imagepalettetotruecolor($image); |
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// imagesavealpha($image, true); |
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// $transparentColor = imagecolorallocatealpha($image, 0, 0, 0, 127); |
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// imagefill($image, 0, 0, $transparentColor); |
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// } |
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} |
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|
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if ($image) { |
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// Resize the image to the defined size |
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$resized_image = imagescale($image, $size[1], $size[2]); |
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|
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if (!$resized_image) { |
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continue; |
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} |
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|
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// Check if the width exceeds the maximum width |
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if ($size[1] > $max_width) { |
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$resized_image = imagescale($resized_image, $max_width); |
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} |
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|
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// Save the resized image as WebP |
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imagewebp($resized_image, $webp_file, $quality); |
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|
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// Free up memory |
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imagedestroy($image); |
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imagedestroy($resized_image); |
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} |
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} |
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} |
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} |
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|
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// Generate webP version for the original size |
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$webp_file_original = $file_info['dirname'] . '/' . $file_info['filename'] . '.webp'; |
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$image_url = wp_get_attachment_url($attachment_id); |
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|
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if (!file_exists($webp_file_original)) { |
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|
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// if webp generation is not supported |
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if (!$this->is_webp_supported()) { |
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$this->handle_not_webp($image_url, $quality, $max_width, $webp_file_original); |
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return; |
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} |
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|
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// Load the original image |
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$image_original = null; |
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$extension_original = strtolower($file_info['extension']); |
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if ($extension_original === 'jpg' || $extension_original === 'jpeg') { |
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$image_original = imagecreatefromjpeg($file); |
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} elseif ($extension_original === 'png') { |
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$image_original = imagecreatefrompng($file); |
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|
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// Ensure the image is true color, not palette-based |
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imagepalettetotruecolor($image_original); |
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} |
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|
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if ($image_original) { |
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// Check if the width exceeds the maximum width |
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$image_width = imagesx($image_original); // get image width |
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if ($image_width > $max_width) { |
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$image_original = imagescale($image_original, $max_width); |
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} |
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|
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// Save the original image as WebP |
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imagewebp($image_original, $webp_file_original, $quality); |
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|
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// Free up memory |
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imagedestroy($image_original); |
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} |
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} |
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} |
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} |
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|
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function delete_webp_images($attachment_id) |
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{ |
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$file = get_attached_file($attachment_id); |
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$file_info = pathinfo($file); |
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|
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// Check if the uploaded image is in a supported format |
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$supported_formats = array('jpg', 'jpeg', 'png'); |
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if (in_array(strtolower($file_info['extension']), $supported_formats)) { |
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// Get the available image sizes defined in WordPress settings |
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$image_sizes = get_intermediate_image_sizes(); |
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|
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// Set the quality of the image (optional) |
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$quality = (int) get_option('berqwp_webp_quality'); |
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$max_width = (int) get_option('berqwp_webp_max_width'); |
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|
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// Generate webP version of the image for each size |
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foreach ($image_sizes as $size_name) { |
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if ($size = wp_get_attachment_image_src($attachment_id, $size_name)) { |
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$webp_file = $file_info['dirname'] . '/' . $file_info['filename'] . '-' . $size[1] . 'x' . $size[2] . '.webp'; |
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// var_dump($webp_file); |
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|
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if (file_exists($webp_file)) { |
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unlink($webp_file); |
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} |
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} |
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} |
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|
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// Generate webP version for the original size |
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$webp_file_original = $file_info['dirname'] . '/' . $file_info['filename'] . '.webp'; |
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// var_dump($webp_file_original); |
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|
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if (file_exists($webp_file_original)) { |
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unlink($webp_file_original); |
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} |
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} |
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} |
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|
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|
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|
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|
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function remove_webp_image($attachment_id) |
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{ |
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$file = get_attached_file($attachment_id); |
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$file_info = pathinfo($file); |
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|
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// Check if the uploaded image is in a supported format |
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$supported_formats = array('jpg', 'jpeg', 'png'); |
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if (isset($file_info['extension']) && in_array(strtolower($file_info['extension']), $supported_formats)) { |
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// Remove the corresponding WebP image if it exists |
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$webp_file = $file_info['dirname'] . '/' . $file_info['filename'] . '.webp'; |
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if (file_exists($webp_file)) { |
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unlink($webp_file); |
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} |
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} |
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} |
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|
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// Generate webP images for existing images in the media library |
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function generate_webp_images_for_existing() |
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{ |
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$args = array( |
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'post_type' => 'attachment', |
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'post_mime_type' => 'image', |
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'post_status' => 'inherit', |
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'posts_per_page' => -1, |
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); |
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|
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$attachments = get_posts($args); |
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|
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foreach ($attachments as $attachment) { |
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$this->generate_webp_images($attachment->ID); |
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} |
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} |
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|
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function delete_webp_images_for_existing() |
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{ |
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$args = array( |
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'post_type' => 'attachment', |
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'post_mime_type' => 'image', |
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'post_status' => 'inherit', |
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'posts_per_page' => -1, |
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); |
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|
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$attachments = get_posts($args); |
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|
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foreach ($attachments as $attachment) { |
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$this->remove_webp_image($attachment->ID); |
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} |
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} |
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} |
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|
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$berqImages = new berqImages(); |
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} |
