' . __FUNCTION__ . '()' ); $list = array(); $dir = get_home_path(); $iterator = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $dir ), RecursiveIteratorIterator::CHILD_FIRST ); $start = microtime( true ); $file_counter = 0; foreach ( $iterator as $path ) { if ( ewww_image_optimizer_stl_check() ) { set_time_limit( 0 ); } $skip_optimized = false; if ( $path->isDir() ) { continue; } else { ++$file_counter; $path = $path->getPathname(); $newwebpformat = preg_replace( '/\.webp/', '', $path ); if ( file_exists( $newwebpformat ) ) { continue; } if ( preg_match( '/\.webp$/', $path ) ) { ewwwio_debug_message( "queued $path" ); $list[] = $path; } } } $end = microtime( true ) - $start; ewwwio_debug_message( "query time for $file_counter files (seconds): $end" ); return $list; } /** * Prepares the migration and includes the javascript functions. * * @param string $hook The hook identifier for the current page. */ function ewww_image_optimizer_webp_script( $hook ) { ewwwio_debug_message( '' . __FUNCTION__ . '()' ); // Make sure we are being called from the migration page. if ( 'admin_page_ewww-image-optimizer-webp-migrate' !== $hook ) { return; } $images = ewww_image_optimizer_webp_scan(); // Remove the images array from the db if it currently exists, and then store the new list in the database. if ( get_option( 'ewww_image_optimizer_webp_images' ) ) { delete_option( 'ewww_image_optimizer_webp_images' ); } add_option( 'ewww_image_optimizer_webp_images', '', '', 'no' ); update_option( 'ewww_image_optimizer_webp_images', $images ); wp_enqueue_script( 'ewwwwebpscript', plugins_url( '/includes/webp.js', __FILE__ ), array( 'jquery' ), EWWW_IMAGE_OPTIMIZER_VERSION ); $image_count = count( $images ); // Submit a couple variables to the javascript to work with. wp_localize_script( 'ewwwwebpscript', 'ewww_vars', array( 'ewww_wpnonce' => wp_create_nonce( 'ewww-image-optimizer-webp' ) ) ); } /** * Called by javascript to initialize some output. */ function ewww_image_optimizer_webp_initialize() { // Verify that an authorized user has started the migration. $permissions = apply_filters( 'ewww_image_optimizer_admin_permissions', '' ); if ( empty( $_REQUEST['ewww_wpnonce'] ) || ! wp_verify_nonce( sanitize_key( $_REQUEST['ewww_wpnonce'] ), 'ewww-image-optimizer-webp' ) || ! current_user_can( $permissions ) ) { ewwwio_ob_clean(); die( esc_html__( 'Access denied.', 'ewww-image-optimizer' ) ); } if ( get_option( 'ewww_image_optimizer_webp_skipped' ) ) { delete_option( 'ewww_image_optimizer_webp_skipped' ); } add_option( 'ewww_image_optimizer_webp_skipped', '', '', 'no' ); // Generate the WP spinner image for display. $loading_image = plugins_url( '/images/wpspin.gif', __FILE__ ); // Let the user know that we are beginning. ewwwio_ob_clean(); die( '

' . esc_html__( 'Scanning', 'ewww-image-optimizer' ) . ' 

' ); } /** * Called by javascript to process each image in the queue. */ function ewww_image_optimizer_webp_loop() { ewwwio_debug_message( '' . __FUNCTION__ . '()' ); $permissions = apply_filters( 'ewww_image_optimizer_admin_permissions', '' ); if ( empty( $_REQUEST['ewww_wpnonce'] ) || ! wp_verify_nonce( sanitize_key( $_REQUEST['ewww_wpnonce'] ), 'ewww-image-optimizer-webp' ) || ! current_user_can( $permissions ) ) { ewwwio_ob_clean(); die( esc_html__( 'Access token has expired, please reload the page.', 'ewww-image-optimizer' ) ); } // Retrieve the time when the migration starts. $started = microtime( true ); if ( ewww_image_optimizer_stl_check() ) { set_time_limit( 0 ); } $images = array(); ewwwio_debug_message( 'renaming images now' ); $images_processed = 0; $images_skipped = ''; $images = get_option( 'ewww_image_optimizer_webp_images' ); if ( $images ) { /* translators: %d: number of images */ printf( esc_html__( '%d Webp images left to rename.', 'ewww-image-optimizer' ), count( $images ) ); echo '
'; } while ( $images ) { ++$images_processed; ewwwio_debug_message( "processed $images_processed images so far" ); if ( $images_processed > 1000 ) { ewwwio_debug_message( 'hit 1000, breaking loop' ); break; } $image = array_pop( $images ); $replace_base = ''; $skip = true; $pngfile = preg_replace( '/webp$/', 'png', $image ); $upngfile = preg_replace( '/webp$/', 'PNG', $image ); $jpgfile = preg_replace( '/webp$/', 'jpg', $image ); $jpegfile = preg_replace( '/webp$/', 'jpeg', $image ); $ujpgfile = preg_replace( '/webp$/', 'JPG', $image ); if ( file_exists( $pngfile ) ) { $replace_base = $pngfile; $skip = false; } if ( file_exists( $upngfile ) ) { if ( empty( $replace_base ) ) { $replace_base = $upngfile; $skip = false; } else { $skip = true; } } if ( file_exists( $jpgfile ) ) { if ( empty( $replace_base ) ) { $replace_base = $jpgfile; $skip = false; } else { $skip = true; } } if ( file_exists( $jpegfile ) ) { if ( empty( $replace_base ) ) { $replace_base = $jpegfile; $skip = false; } else { $skip = true; } } if ( file_exists( $ujpgfile ) ) { if ( empty( $replace_base ) ) { $replace_base = $ujpgfile; $skip = false; } else { $skip = true; } } if ( $skip ) { if ( $replace_base ) { ewwwio_debug_message( "multiple replacement options for $image, not renaming" ); } else { ewwwio_debug_message( "no match found for $image, strange..." ); } $images_skipped .= "$image
"; } else { ewwwio_debug_message( "renaming $image with match of $replace_base" ); rename( $image, $replace_base . '.webp' ); } } // End while(). if ( $images_skipped ) { update_option( 'ewww_image_optimizer_webp_skipped', get_option( 'ewww_image_optimizer_webp_skipped' ) . $images_skipped ); } // Calculate how much time has elapsed since we started. $elapsed = microtime( true ) - $started; ewwwio_debug_message( "took $elapsed seconds this time around" ); // Store the updated list of images back in the database. update_option( 'ewww_image_optimizer_webp_images', $images ); die(); } /** * Called by javascript to cleanup after ourselves. */ function ewww_image_optimizer_webp_cleanup() { $permissions = apply_filters( 'ewww_image_optimizer_admin_permissions', '' ); if ( empty( $_REQUEST['ewww_wpnonce'] ) || ! wp_verify_nonce( sanitize_key( $_REQUEST['ewww_wpnonce'] ), 'ewww-image-optimizer-webp' ) || ! current_user_can( $permissions ) ) { ewwwio_ob_clean(); die( esc_html__( 'Access token has expired, please reload the page.', 'ewww-image-optimizer' ) ); } $skipped = get_option( 'ewww_image_optimizer_webp_skipped' ); // All done, so we can remove the webp options... delete_option( 'ewww_image_optimizer_webp_images' ); delete_option( 'ewww_image_optimizer_webp_skipped', '' ); ewwwio_ob_clean(); if ( $skipped ) { echo '

' . esc_html__( 'Skipped:', 'ewww-image-optimizer' ) . '

'; echo wp_kses_post( "

$skipped

" ); } // and let the user know we are done. die( '

' . esc_html__( 'Finished', 'ewww-image-optimizer' ) . '

' ); } add_action( 'admin_enqueue_scripts', 'ewww_image_optimizer_webp_script' ); add_action( 'wp_ajax_webp_init', 'ewww_image_optimizer_webp_initialize' ); add_action( 'wp_ajax_webp_loop', 'ewww_image_optimizer_webp_loop' ); add_action( 'wp_ajax_webp_cleanup', 'ewww_image_optimizer_webp_cleanup' );