File: //home/swifizcd/julnohub.com.ng/wp-content/plugins/ewww-image-optimizer/mwebp.php
<?php
/**
* Functions to migrate WebP files from the extension replacement to extension appending.
*
* @link https://ewww.io
* @package EWWW_Image_Optimizer
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Displays the bulk migration form.
*/
function ewww_image_optimizer_webp_migrate_preview() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$naming_mode = ewww_image_optimizer_get_option( 'ewww_image_optimizer_webp_naming_mode', 'append' );
?>
<div class="wrap">
<h1><?php esc_html_e( 'Rename WebP Images', 'ewww-image-optimizer' ); ?></h1>
<p>
<?php if ( 'replace' === $naming_mode ) : ?>
<?php esc_html_e( 'This tool will search your entire WordPress folder for images with a .webp extension appended and convert them to replacement naming.', 'ewww-image-optimizer' ); ?>
<?php else : ?>
<?php esc_html_e( 'This tool will search your entire WordPress folder for images with a .webp extension in place of the original, and append the extension instead.', 'ewww-image-optimizer' ); ?>
<?php endif; ?>
</p>
<div id="webp-loading"></div>
<div id="webp-progressbar"></div>
<div id="webp-counter"></div>
<div id="webp-status"></div>
<div id="bulk-forms">
<form id="webp-start" class="webp-form" method="post" action="">
<input id="webp-first" type="submit" class="button-secondary action" value="<?php esc_attr_e( 'Start Migration', 'ewww-image-optimizer' ); ?>" />
</form>
</div>
</div>
<?php
}
/**
* Scan a folder for webp images using the old naming scheme and return them as an array.
*
* @return array A list of images with the old naming scheme.
*/
function ewww_image_optimizer_webp_scan() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$list = array();
$dir = get_home_path();
$iterator = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $dir ), RecursiveIteratorIterator::CHILD_FIRST );
$start = microtime( true );
$file_counter = 0;
$naming_mode = ewww_image_optimizer_get_option( 'ewww_image_optimizer_webp_naming_mode', 'append' );
$original_extensions = array( 'png', 'jpg', 'jpeg', 'gif' );
if ( ewww_image_optimizer_stl_check() ) {
set_time_limit( 0 );
}
foreach ( $iterator as $path ) {
if ( $path->isDir() ) {
continue;
} else {
++$file_counter;
$path = $path->getPathname();
if ( ! str_ends_with( $path, '.webp' ) ) {
continue;
}
$original_path = ewwwio()->remove_from_end( $path, '.webp' );
$info = pathinfo( $original_path );
$ext = strtolower( $info['extension'] ?? '' );
$is_real_ext = in_array( $ext, $original_extensions, true );
$plugins_dir = plugin_dir_path( EWWW_IMAGE_OPTIMIZER_PLUGIN_PATH );
if ( str_contains( $path, $plugins_dir ) ) {
continue;
}
if ( 'append' === $naming_mode ) {
if ( $is_real_ext ) {
continue;
}
foreach ( $original_extensions as $ext ) {
if ( ewwwio_is_file( $original_path . '.' . $ext ) || ewwwio_is_file( $original_path . '.' . strtoupper( $ext ) ) ) {
ewwwio_debug_message( "queued $path" );
$list[] = $path;
break;
}
}
} elseif ( 'replace' === $naming_mode ) {
if ( ! $is_real_ext ) {
continue;
}
if ( ewwwio_is_file( $original_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( '<b>' . __FUNCTION__ . '()</b>' );
// 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' );
}
if ( get_option( 'ewww_image_optimizer_webp_skipped' ) ) {
delete_option( 'ewww_image_optimizer_webp_skipped' );
}
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' ),
'interrupted' => esc_html__( 'Operation Interrupted', 'ewww-image-optimizer' ),
'retrying' => esc_html__( 'Temporary failure, attempts remaining:', 'ewww-image-optimizer' ),
'invalid_response' => esc_html__( 'Received an invalid response from your website, please check for errors in the Developer Tools console of your browser.', 'ewww-image-optimizer' ),
'image_count' => $image_count,
'webp_images' => $images,
)
);
}
/**
* 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' ) );
}
// 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( '<p>' . esc_html__( 'Scanning', 'ewww-image-optimizer' ) . ' <img src="' . esc_url( $loading_image ) . '" /></p>' );
}
/**
* Called by javascript to process each image in the queue.
*/
function ewww_image_optimizer_webp_loop() {
ewwwio_debug_message( '<b>' . __FUNCTION__ . '()</b>' );
$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( wp_json_encode( array( 'error' => esc_html__( 'Access token has expired, please reload the page.', 'ewww-image-optimizer' ) ) ) );
}
if ( empty( $_REQUEST['webp_images'] ) || ! is_array( $_REQUEST['webp_images'] ) ) {
ewwwio_ob_clean();
die( wp_json_encode( array( 'error' => esc_html__( 'No images to migrate.', 'ewww-image-optimizer' ) ) ) );
}
// Retrieve the time when the migration starts.
$started = microtime( true );
if ( ewww_image_optimizer_stl_check() ) {
set_time_limit( 0 );
}
ewwwio_debug_message( 'renaming images now' );
$images_processed = 0;
$images_renamed = 0;
$output = '';
$images = array_map( 'sanitize_text_field', wp_unslash( $_REQUEST['webp_images'] ) );
while ( $images ) {
++$images_processed;
ewwwio_debug_message( "processed $images_processed images so far" );
$image = array_pop( $images );
if ( ! ewwwio_is_file( $image ) ) {
ewwwio_debug_message( "skipping $image because it is not a file, or not in a permitted folder" );
continue;
}
$replace_base = '';
$skip = true;
$naming_mode = ewww_image_optimizer_get_option( 'ewww_image_optimizer_webp_naming_mode', 'append' );
$extensionless = ewwwio()->remove_from_end( $image, '.webp' );
$info = pathinfo( $extensionless );
$ext = strtolower( $info['extension'] ?? '' );
$original_extensions = array( 'png', 'jpg', 'jpeg', 'gif' );
$is_real_ext = in_array( $ext, $original_extensions, true );
if ( 'replace' === $naming_mode ) {
if ( $is_real_ext && ewwwio_is_file( $extensionless ) ) {
$replace_base = $extensionless;
$skip = false;
}
} elseif ( 'append' === $naming_mode ) {
if ( $is_real_ext ) {
continue;
}
foreach ( $original_extensions as $img_ext ) {
if ( ewwwio_is_file( $extensionless . '.' . $img_ext ) || ewwwio_is_file( $extensionless . '.' . strtoupper( $img_ext ) ) ) {
if ( ! empty( $replace_base ) ) {
$skip = true;
break;
}
$replace_base = $extensionless . '.' . $img_ext;
$skip = false;
}
}
}
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..." );
}
/* translators: %s: a webp file */
$output .= sprintf( esc_html__( 'Skipped %s, could not determine original image path', 'ewww-image-optimizer' ), esc_html( $image ) ) . '<br>';
} else {
$new_webp_path = ewww_image_optimizer_get_webp_path( $replace_base );
if ( is_file( $new_webp_path ) ) {
ewwwio_debug_message( "$new_webp_path already exists, deleting $image" );
ewwwio_delete_file( $image );
/* translators: 1: a webp file 2: another webp file */
$output .= sprintf( esc_html__( '%1$s already exists, removed %2$s', 'ewww-image-optimizer' ), esc_html( $new_webp_path ), esc_html( $image ) ) . '<br>';
continue;
}
++$images_renamed;
ewwwio_debug_message( "renaming $image with match of $replace_base to $new_webp_path" );
rename( $image, $new_webp_path );
}
} // End while().
if ( $images_renamed ) {
/* translators: %d: number of images */
$output .= sprintf( esc_html__( 'Renamed %d WebP images', 'ewww-image-optimizer' ), (int) $images_renamed ) . '<br>';
}
// 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.
echo wp_json_encode(
array(
'output' => $output,
)
);
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' ) );
}
ewwwio_ob_clean();
// and let the user know we are done.
die( '<p><b>' . esc_html__( 'Finished', 'ewww-image-optimizer' ) . '</b></p>' );
}
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' );