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<?php
/**
* Smush integration with various plugins: Common class
*
* @package Smush\Core\Integrations
* @since 2.8.0
*
* @author Anton Vanyukov <[email protected]>
*
* @copyright (c) 2018, Incsub (http://incsub.com)
*/
namespace Smush\Core\Integrations;
use Smush\Core\Helper;
use Smush\Core\Modules\Helpers\Parser;
use Smush\Core\Modules\Smush;
use WP_Smush;
if ( ! defined( 'WPINC' ) ) {
die;
}
/**
* Singleton class class Common
*
* @since 2.8.0
*/
class Common {
/**
* Common constructor.
*/
public function __construct() {
if ( is_admin() ) {
// AJAX Thumbnail Rebuild integration.
add_filter( 'wp_smush_media_image', array( $this, 'skip_images' ), 10, 2 );
// Optimise WP retina 2x images.
add_action( 'wr2x_retina_file_added', array( $this, 'smush_retina_image' ), 20, 3 );
// Remove any pre_get_posts_filters added by WP Media Folder plugin.
add_action( 'wp_smush_remove_filters', array( $this, 'remove_filters' ) );
}
// WPML integration.
add_action( 'wpml_updated_attached_file', array( $this, 'wpml_undo_ignore_attachment' ) );
add_action( 'wpml_after_duplicate_attachment', array( $this, 'wpml_ignore_duplicate_attachment' ), 10, 2 );
add_action( 'wpml_after_copy_attached_file_postmeta', array( $this, 'wpml_ignore_duplicate_attachment' ), 10, 2 );
// ReCaptcha lazy load.
add_filter( 'smush_skip_iframe_from_lazy_load', array( $this, 'exclude_recaptcha_iframe' ), 10, 2 );
// Compatibility modules for lazy loading.
add_filter( 'smush_skip_image_from_lazy_load', array( $this, 'lazy_load_compat' ), 10, 3 );
// Soliloquy slider CDN support.
add_filter( 'soliloquy_image_src', array( $this, 'soliloquy_image_src' ) );
// Translate Press integration.
add_filter( 'smush_skip_image_from_lazy_load', array( $this, 'trp_translation_editor' ) );
// Jetpack CDN compatibility.
add_filter( 'smush_cdn_skip_image', array( $this, 'jetpack_cdn_compat' ), 10, 2 );
// WP Maintenance Plugin integration.
add_action( 'template_redirect', array( $this, 'wp_maintenance_mode' ) );
// WooCommerce's product gallery thumbnail CDN support.
add_filter( 'woocommerce_single_product_image_thumbnail_html', array( $this, 'woocommerce_cdn_gallery_thumbnails' ) );
// Buddyboss theme and its platform plugin integration.
add_filter( 'wp_smush_cdn_before_process_src', array( $this, 'buddyboss_platform_modify_image_src' ), 10, 2 );
// GiveWP donation form load lazyload images in iframe.
add_action( 'give_donation_form_top', array( $this, 'givewp_skip_image_lazy_load' ), 0 );
// Thumbnail regeneration handler.
add_filter( 'wp_generate_attachment_metadata', array( $this, 'maybe_handle_thumbnail_generation' ) );
}
/**
* Remove any pre_get_posts_filters added by WP Media Folder plugin.
*/
public function remove_filters() {
// Remove any filters added b WP media Folder plugin to get the all attachments.
if ( class_exists( 'Wp_Media_Folder' ) ) {
global $wp_media_folder;
if ( is_object( $wp_media_folder ) ) {
remove_filter( 'pre_get_posts', array( $wp_media_folder, 'wpmf_pre_get_posts1' ) );
remove_filter( 'pre_get_posts', array( $wp_media_folder, 'wpmf_pre_get_posts' ), 0, 1 );
}
}
global $wpml_query_filter;
// If WPML is not installed, return.
if ( ! is_object( $wpml_query_filter ) ) {
return;
}
// Remove language filter and let all the images be smushed at once.
if ( has_filter( 'posts_join', array( $wpml_query_filter, 'posts_join_filter' ) ) ) {
remove_filter( 'posts_join', array( $wpml_query_filter, 'posts_join_filter' ), 10, 2 );
remove_filter( 'posts_where', array( $wpml_query_filter, 'posts_where_filter' ), 10, 2 );
}
}
/**************************************
*
* AJAX Thumbnail Rebuild
*
* @since 2.8
*/
/**
* AJAX Thumbnail Rebuild integration.
*
* If this is a thumbnail regeneration - only continue for selected thumbs
* (no need to regenerate everything else).
*
* @since 2.8.0
*
* @param string $smush_image Image size.
* @param string $size_key Thumbnail size.
*
* @return bool
*/
public function skip_images( $smush_image, $size_key ) {
if ( empty( $_POST['regen'] ) || ! is_array( $_POST['regen'] ) ) { // Input var ok.
return $smush_image;
}
$smush_sizes = wp_unslash( $_POST['regen'] ); // Input var ok.
if ( in_array( $size_key, $smush_sizes, true ) ) {
return $smush_image;
}
// Do not regenerate other thumbnails for regenerate action.
return false;
}
/**************************************
*
* WP Retina 2x
*/
/**
* Smush Retina images for WP Retina 2x, Update Stats.
*
* @param int $id Attachment ID.
* @param string $retina_file Retina image.
* @param string $image_size Image size.
*/
public function smush_retina_image( $id, $retina_file, $image_size ) {
$smush = WP_Smush::get_instance()->core()->mod->smush;
/**
* Allows to Enable/Disable WP Retina 2x Integration
*/
$smush_retina_images = apply_filters( 'smush_retina_images', true );
// Check if Smush retina images is enabled.
if ( ! $smush_retina_images ) {
return;
}
// Check for Empty fields.
if ( empty( $id ) || empty( $retina_file ) || empty( $image_size ) ) {
return;
}
// Do not smush if auto smush is turned off.
if ( ! $smush->is_auto_smush_enabled() ) {
return;
}
/**
* Allows to skip a image from smushing
*
* @param bool $smush_image Smush image or not
* @param string $image_size Size of image being smushed
* @param string $retina_file Retina file path.
* @param int $id Attachment ID.
*
* @since 3.9.6 Add two parameters for the filter.
*/
$smush_image = apply_filters( 'wp_smush_media_image', true, $image_size, $retina_file, $id );
if ( ! $smush_image ) {
return;
}
$stats = $smush->do_smushit( $retina_file );
// If we squeezed out something, Update stats.
if ( ! is_wp_error( $stats ) && ! empty( $stats['data'] ) && isset( $stats['data'] ) && $stats['data']->bytes_saved > 0 ) {
$image_size = $image_size . '@2x';
$this->update_smush_stats_single( $id, $stats, $image_size );
}
}
/**
* Updates the smush stats for a single image size.
*
* @param int $id Attachment ID.
* @param array $smush_stats Smush stats.
* @param string $image_size Image size.
*/
private function update_smush_stats_single( $id, $smush_stats, $image_size = '' ) {
// Return, if we don't have image id or stats for it.
if ( empty( $id ) || empty( $smush_stats ) || empty( $image_size ) ) {
return;
}
$smush = WP_Smush::get_instance()->core()->mod->smush;
$data = $smush_stats['data'];
// Get existing Stats.
$stats = get_post_meta( $id, Smush::$smushed_meta_key, true );
// Update existing Stats.
if ( ! empty( $stats ) ) {
// Update stats for each size.
if ( isset( $stats['sizes'] ) ) {
// if stats for a particular size doesn't exists.
if ( empty( $stats['sizes'][ $image_size ] ) ) {
// Update size wise details.
$stats['sizes'][ $image_size ] = (object) $smush->array_fill_placeholders( $smush->get_size_signature(), (array) $data );
} else {
// Update compression percent and bytes saved for each size.
$stats['sizes'][ $image_size ]->bytes = $stats['sizes'][ $image_size ]->bytes + $data->bytes_saved;
$stats['sizes'][ $image_size ]->percent = $stats['sizes'][ $image_size ]->percent + $data->compression;
}
}
} else {
// Create new stats.
$stats = array(
'stats' => array_merge(
$smush->get_size_signature(),
array(
'api_version' => - 1,
'lossy' => - 1,
)
),
'sizes' => array(),
);
$stats['stats']['api_version'] = $data->api_version;
$stats['stats']['lossy'] = $data->lossy;
$stats['stats']['keep_exif'] = ! empty( $data->keep_exif ) ? $data->keep_exif : 0;
// Update size wise details.
$stats['sizes'][ $image_size ] = (object) $smush->array_fill_placeholders( $smush->get_size_signature(), (array) $data );
}
// Calculate the total compression.
$stats = WP_Smush::get_instance()->core()->total_compression( $stats );
update_post_meta( $id, Smush::$smushed_meta_key, $stats );
}
/**************************************
*
* WPML
*
* @since 3.0
*/
/**
* Ignore WPML duplicated images from Smush.
*
* If WPML is duplicating images, we need to mark them as ignored for Smushing
* because the image is same for all those duplicated attachment posts. This is
* required to avoid wrong Smush stats.
*
* @param int $attachment_id Original attachment ID.
* @param int $duplicated_attachment_id Duplicated attachment ID.
*
* @since 3.9.4
*/
public function wpml_ignore_duplicate_attachment( $attachment_id, $duplicated_attachment_id ) {
// Ignore the image from Smush if duplicate.
update_post_meta( $duplicated_attachment_id, 'wp-smush-ignore-bulk', true );
}
/**
* Remove an image from the ignored list.
*
* When a new image is added instead of duplicate, we need to remove it
* from the ignored list to make it available for Smushing.
*
* @param int $attachment_id Attachment ID.
*
* @since 3.9.4
*/
public function wpml_undo_ignore_attachment( $attachment_id ) {
// Delete ignore flag.
delete_post_meta( $attachment_id, 'wp-smush-ignore-bulk' );
}
/**
* Skip ReCaptcha iframes from lazy loading.
*
* @since 3.4.2
*
* @param bool $skip Should skip? Default: false.
* @param string $src Iframe url.
*
* @return bool
*/
public function exclude_recaptcha_iframe( $skip, $src ) {
return false !== strpos( $src, 'recaptcha/api' );
}
/**************************************
*
* Soliloquy slider
*
* @since 3.6.2
*/
/**
* Replace slider image links with CDN links.
*
* @param string $src Image source.
*
* @return string
*/
public function soliloquy_image_src( $src ) {
$cdn = WP_Smush::get_instance()->core()->mod->cdn;
if ( ! $cdn->get_status() || empty( $src ) ) {
return $src;
}
if ( $cdn->is_supported_path( $src ) ) {
return $cdn->generate_cdn_url( $src );
}
return $src;
}
/**************************************
*
* Translate Press
*
* @since 3.6.3
*/
/**
* Disables "Lazy Load" on Translate Press translate editor
*
* @param bool $skip Should skip? Default: false.
*
* @return bool
*/
public function trp_translation_editor( $skip ) {
if ( ! class_exists( '\TRP_Translate_Press' ) || ! isset( $_GET['trp-edit-translation'] ) ) {
return $skip;
}
return true;
}
/**************************************
*
* Jetpack
*
* @since 3.7.1
*/
/**
* Skips the url from the srcset from our CDN when it's already served by Jetpack's CDN.
*
* @since 3.7.1
*
* @param bool $skip Should skip? Default: false.
* @param string $url Source.
*
* @return bool
*/
public function jetpack_cdn_compat( $skip, $url ) {
if ( ! class_exists( '\Jetpack' ) ) {
return $skip;
}
if ( method_exists( '\Jetpack', 'is_module_active' ) && ! \Jetpack::is_module_active( 'photon' ) ) {
return $skip;
}
$parsed_url = wp_parse_url( $url );
// The image already comes from Jetpack's CDN.
if ( preg_match( '#^i[\d]{1}.wp.com$#i', $parsed_url['host'] ) ) {
return true;
}
return $skip;
}
/**************************************
*
* WP Maintenance Plugin
*
* @since 3.8.0
*/
/**
* Disable page parsing when "Maintenance" is enabled
*
* @since 3.8.0
*/
public function wp_maintenance_mode() {
if ( ! class_exists( '\MTNC' ) ) {
return;
}
global $mt_options;
if ( ! is_user_logged_in() && ! empty( $mt_options['state'] ) ) {
add_filter( 'wp_smush_should_skip_parse', '__return_true' );
}
}
/**************************************
*
* WooCommerce
*
* @since 3.9.0
*/
/**
* Replaces the product's gallery thumbnail URL with the CDN URL.
*
* WC uses a <div data-thumbnail=""> attribute to get the thumbnail
* img src which is then added via JS. Our regex for parsing the page
* doesn't check for this div and attribute (and it shouldn't, it becomes too slow).
*
* We can remove this if we ever use the filter "wp_get_attachment_image_src"
* to replace the images' src URL with the CDN one.
*
* @since 3.9.0
*
* @param string $html The thumbnail markup.
* @return string
*/
public function woocommerce_cdn_gallery_thumbnails( $html ) {
$cdn = WP_Smush::get_instance()->core()->mod->cdn;
// Replace only when the CDN is active.
if ( ! $cdn->get_status() ) {
return $html;
}
preg_match_all( '/<(div)\b(?>\s+(?:data-thumb=[\'"](?P<thumb>[^\'"]*)[\'"])|[^\s>]+|\s+)*>/is', $html, $matches );
if ( ! $matches || ! is_array( $matches ) ) {
return $html;
}
foreach ( $matches as $key => $url ) {
// Only use the match for the thumbnail URL if it's supported.
if ( 'thumb' !== $key || empty( $url[0] ) || ! $cdn->is_supported_path( $url[0] ) ) {
continue;
}
// Replace the data-thumb attribute of the div with the CDN link.
$cdn_url = $cdn->generate_cdn_url( $url[0] );
if ( $cdn_url ) {
$html = str_replace( $url[0], $cdn_url, $html );
}
}
return $html;
}
/**************************************
*
* Various modules
*
* @since 3.5
*/
/**
* Lazy loading compatibility checks.
*
* @since 3.5.0
*
* @param bool $skip Should skip? Default: false.
* @param string $src Image url.
* @param string $image Image.
*
* @return bool
*/
public function lazy_load_compat( $skip, $src, $image ) {
// Avoid conflicts if attributes are set (another plugin, for example).
if ( false !== strpos( $image, 'data-src' ) ) {
return true;
}
// Compatibility with Essential Grid lazy loading.
if ( false !== strpos( $image, 'data-lazysrc' ) ) {
return true;
}
// Compatibility with JetPack lazy loading.
if ( false !== strpos( $image, 'jetpack-lazy-image' ) ) {
return true;
}
// Compatibility with Slider Revolution's lazy loading.
if ( false !== strpos( $image, '/revslider/' ) && false !== strpos( $image, 'data-lazyload' ) ) {
return true;
}
return $skip;
}
/**
* CDN compatibility with Buddyboss platform
*
* @param string $src Image source.
* @param string $image Actual image element.
*
* @return string Original or modified image source.
*/
public function buddyboss_platform_modify_image_src( $src, $image ) {
if ( ! defined( 'BP_PLATFORM_VERSION' ) ) {
return $src;
}
/**
* Compatibility with buddyboss theme and it's platform plugin.
*
* Buddyboss platform plugin uses the placeholder image as it's main src.
* And process_src() method below uses the same placeholder.png to create
* the srcset when "Automatic resizing" options is enabled for CDN.
* ---------
* Replacing the placeholder with actual image source as early as possible.
* Checks:
* 1. The image source contains buddyboss-platform in its string
* 2. The image source contains placeholder.png and is crucial because there are other
* images as well which doesn't uses placeholder.
*/
if ( false !== strpos( $src, 'buddyboss-platform' ) && false !== strpos( $src, 'placeholder.png' ) ) {
$new_src = Parser::get_attribute( $image, 'data-src' );
if ( ! empty( $new_src ) ) {
$src = $new_src;
}
}
return $src;
}
/**
* Skip images from lazy loading on GiveWP forms.
*
* @since 3.8.8
*/
public function givewp_skip_image_lazy_load() {
add_filter( 'wp_smush_should_skip_parse', '__return_true' );
}
/**
* Add method to handle thumbnail generation.
*
* We use this trick to call self::thumbnail_regenerate_handler()
* to avoid it called several times while calling wp_generate_attachment_metadata().
* 1. wp_generate_attachment_metadata -> wp_create_image_subsizes -> wp_update_attachment_metadata().
* 2. wp_generate_attachment_metadata -> _wp_make_subsizes -> wp_update_attachment_metadata().
* 3. After calling wp_generate_attachment_metadata() => We should only add our filter here.
*
* @param array $metadata Image metadata.
* @return array The provided metadata.
*/
public function maybe_handle_thumbnail_generation( $metadata ) {
/**
* Add filter to handle thumbnail generation.
* We use a big priority because it seems WP has an issue for this case,
* after we remove this filter, all registered filters after this priority of this hook will not call.
*/
add_filter( 'wp_update_attachment_metadata', array( $this, 'thumbnail_regenerate_handler' ), 99999, 2 ); // S3 is using priority 110.
return $metadata;
}
/**
* Callback for 'wp_update_attachment_metadata' WordPress hook used by Smush to detect
* regenerated thumbnails and mark them as pending for (re)smush.
*
* @since 3.9.2
*
* @param array $new_meta New metadata.
* @param int $attachment_id The attachment ID.
*
* @since 3.9.6 Disable this filter while async uploading,
* and update compatible with S3, and only call it after generated metadata.
*
* @return array
*/
public function thumbnail_regenerate_handler( $new_meta, $attachment_id ) {
// Remove the filter as we are no longer need it.
remove_filter( 'wp_update_attachment_metadata', array( $this, 'thumbnail_regenerate_handler' ), 99999 );
/**
* Skip if there is WP uploading a new image,
* or the attachment is not an image or does not have thumbnails.
*/
if (
empty( $new_meta['sizes'] )
// Async uploading.
|| isset( $_POST['post_id'] ) || isset( $_FILES['async-upload'] )
// Smushed it, don't need to check it again.
|| did_action( 'wp_smush_before_smush_file' )
// Disable when restoring.
|| did_action( 'wp_smush_before_restore_backup' )
// Only support Image.
|| ! Helper::is_smushable( $attachment_id )
) {
return $new_meta;
}
// Skip if the attachment has an active smush operation or in being restored by Smush or ignored.
if ( get_transient( 'smush-in-progress-' . $attachment_id ) || get_transient( 'wp-smush-restore-' . $attachment_id ) || get_post_meta( $attachment_id, 'wp-smush-ignore-bulk', true ) ) {
return $new_meta;
}
$smush_meta = get_post_meta( $attachment_id, Smush::$smushed_meta_key, true );
// Skip attachments without Smush meta key.
if ( empty( $smush_meta ) ) {
return $new_meta;
}
$size_increased = false;
/**
* Get attached file
* If there is generating the image, S3 also downloaded it,
* so we don't need to download it if it doesn't exist.
*/
$attached_file = Helper::get_attached_file( $attachment_id, 'original' );// S3+.
// If the main file does not exist, there is not generating the thumbnail, return.
if ( ! file_exists( $attached_file ) ) {
return $new_meta;
}
// We need only the last $new_meta['sizes'] element of each subsequent call
// to wp_update_attachment_metadata() made by wp_create_image_subsizes().
$size = array_keys( $new_meta['sizes'] )[ count( $new_meta['sizes'] ) - 1 ];
$file_dir = dirname( $attached_file );
$file_name = $file_dir . '/' . $new_meta['sizes'][ $size ]['file'];
$actual_size = is_file( $file_name ) ? filesize( $file_name ) : false;
$stored_size = isset( $smush_meta['sizes'][ $size ]->size_after ) ? $smush_meta['sizes'][ $size ]->size_after : false;
// Only do the comparison if we have both the actual and the database stored size.
if ( $actual_size && $stored_size ) {
$size_increased = $actual_size > 1.01 * $stored_size;// Not much we can do if save less than 1%.
}
// File size increased? Let's remove all
// Smush related meta keys for this attachment.
if ( $size_increased ) {
/**
* When regenerate an image, we only generate the sub-sizes,
* so we don't need to delete the saving data of PNG2JPG.
* And similar for resizing, we also added filter for big_image_size_threshold,
* and we don't use the resizing meta for any conditional, so it's ok to keep it.
*/
// Remove stats and update cache.
WP_Smush::get_instance()->core()->remove_stats( $attachment_id );
}
return $new_meta;
}
}