File Manager
<?php
/**
* NextGen integration: NextGen class
*
* @package Smush\Core\Integrations
* @version 1.0
*
* @author Umesh Kumar <umesh@incsub.com>
*
* @copyright (c) 2016, Incsub (http://incsub.com)
*/
namespace Smush\Core\Integrations;
use C_Component_Registry;
use C_Gallery_Storage;
use Exception;
use nggdb;
use Smush\Core\Core;
use Smush\Core\Helper;
use stdClass;
use WP_Error;
use WP_Smush;
if ( ! defined( 'WPINC' ) ) {
die;
}
/**
* Class NextGen
*/
class NextGen extends Abstract_Integration {
/**
* Contains the total Stats, for displaying it on bulk page
*
* @var array $stats
*/
public $stats = array(
'savings_bytes' => 0,
'size_before' => 0,
'size_after' => 0,
'savings_percent' => 0,
);
/**
* NextGen admin module.
*
* @var Nextgen\Admin
*/
public $ng_admin;
/**
* NextGen stats module.
*
* @var Nextgen\Stats
*/
public $ng_stats;
/**
* Nextgen constructor.
*/
public function __construct() {
$this->module = 'nextgen';
$this->class = 'pro';
$this->enabled = class_exists( '\C_NextGEN_Bootstrap' );
parent::__construct();
$is_pro = WP_Smush::is_pro();
// Hook at the end of setting row to output a error div.
add_action( 'smush_setting_column_right_inside', array( $this, 'additional_notice' ) );
// Do not continue if not PRO member or NextGen plugin not installed.
if ( ! $is_pro || ! $this->enabled || ! $this->is_enabled() ) {
// Add Pro tag.
add_action( 'smush_setting_column_tag', array( $this, 'add_pro_tag' ) );
return;
}
$this->add_mixins();
add_action( 'admin_init', array( $this, 'init_modules' ) );
/**
* ACTIONS
*/
// Auto Smush image, if enabled, runs after NextGen is finished uploading the image.
// Allows to override whether to auto smush NextGen image or not.
$auto_smush = apply_filters( 'smush_nextgen_auto', WP_Smush::get_instance()->core()->mod->smush->is_auto_smush_enabled() );
if ( $auto_smush ) {
add_action( 'ngg_added_new_image', array( $this, 'auto_smush' ) );
}
// Update Total Image count.
add_action( 'ngg_added_new_image', array( $this, 'update_stats_image_count' ), 10 );
/**
* AJAX
*/
// Single Smush/Manual Smush: Handles the Single/Manual smush request for NextGen Gallery.
add_action( 'wp_ajax_smush_manual_nextgen', array( $this, 'manual_nextgen' ) );
// Restore Image: Handles the single/Manual restore image request for NextGen Gallery.
add_action( 'wp_ajax_smush_restore_nextgen_image', array( $this, 'restore_image' ) );
// Resmush Image: Handles the single/Manual resmush image request for NextGen Gallery.
add_action( 'wp_ajax_smush_resmush_nextgen_image', array( $this, 'resmush_image' ) );
// Bulk Smush NextGen images.
add_action( 'wp_ajax_wp_smushit_nextgen_bulk', array( $this, 'smush_bulk' ) );
}
/**************************************
*
* OVERWRITE PARENT CLASS FUNCTIONALITY
*/
/**
* Filters the setting variable to add NextGen setting title and description
*
* @param array $settings Settings.
*
* @return mixed
*/
public function register( $settings ) {
$settings[ $this->module ] = array(
'label' => esc_html__( 'Enable NextGen Gallery integration', 'wp-smushit' ),
'short_label' => esc_html__( 'NextGen Gallery', 'wp-smushit' ),
'desc' => esc_html__( 'Allow smushing images directly through NextGen Gallery settings.', 'wp-smushit' ),
);
return $settings;
}
/**
* Disable module functionality if not PRO.
*
* @return bool
*/
public function setting_status() {
return ! WP_Smush::is_pro() ? true : ! $this->enabled;
}
/**************************************
*
* PUBLIC CLASSES
*/
/**
* Initialize the stats and admin modules, once admin is ready.
*
* @since 3.3.0
*/
public function init_modules() {
$this->ng_stats = new NextGen\Stats();
$this->ng_admin = new NextGen\Admin( $this->ng_stats );
}
/**
* Check if NextGen integration is active.
*
* @since 2.9.0
*
* @return bool|mixed
*/
public function is_enabled() {
return $this->settings->get( 'nextgen' );
}
/**
* Bulk Smush for Nextgen.
*
* @throws Exception Exception.
*/
public function smush_bulk() {
$stats = array();
check_ajax_referer( 'wp-smush-ajax', '_nonce' );
// Check For permission.
if ( ! Helper::is_user_allowed( 'manage_options' ) ) {
wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );
}
if ( empty( $_GET['attachment_id'] ) ) {
wp_send_json_error(
array(
'error' => 'missing_id',
'error_message' => esc_html__( 'No attachment ID was received', 'wp-smushit' ),
'file_name' => 'undefined',
)
);
}
$atchmnt_id = (int) $_GET['attachment_id'];
$smush = $this->smush_image( $atchmnt_id, '', true );
if ( is_wp_error( $smush ) ) {
$error_message = $smush->get_error_message();
// Check for timeout error and suggest to filter timeout.
if ( strpos( $error_message, 'timed out' ) ) {
$error = 'timeout';
$error_message = esc_html__( 'Smush request timed out. You can try setting a higher value ( > 60 ) for `WP_SMUSH_TIMEOUT`.', 'wp-smushit' );
}
$error = isset( $error ) ? $error : 'other';
$file_name = $this->get_nextgen_image_from_id( $atchmnt_id );
wp_send_json_error(
array(
'error' => $error,
'stats' => $stats,
'error_message' => $error_message,
'file_name' => isset( $file_name->filename ) ? $file_name->filename : 'undefined',
)
);
}
// Check if a re-Smush request, update the re-Smush list.
if ( ! empty( $_REQUEST['is_bulk_resmush'] ) ) {
$this->ng_stats->get_reoptimize_list()->remove_id( $atchmnt_id );
}
$stats['is_lossy'] = ! empty( $smush['stats'] ) ? $smush['stats']['lossy'] : 0;
// Size before and after smush.
$stats['size_before'] = ! empty( $smush['stats'] ) ? $smush['stats']['size_before'] : 0;
$stats['size_after'] = ! empty( $smush['stats'] ) ? $smush['stats']['size_after'] : 0;
// Get the re-Smush IDs list.
$this->ng_admin->resmush_ids = $this->ng_stats->get_reoptimize_list()->get_ids();
$resmush_count = ! empty( $this->ng_admin->resmush_ids ) ? count( $this->ng_admin->resmush_ids ) : 0;
$smushed_images = $this->ng_stats->get_ngg_images( 'smushed' );
// Remove re-Smush IDs from smushed images list.
if ( $resmush_count > 0 && is_array( $this->ng_admin->resmush_ids ) ) {
foreach ( $smushed_images as $image_k => $image ) {
if ( in_array( $image_k, $this->ng_admin->resmush_ids, true ) ) {
unset( $smushed_images[ $image_k ] );
}
}
}
// Get the image count and smushed images count.
$image_count = ! empty( $smush ) && ! empty( $smush['sizes'] ) ? count( $smush['sizes'] ) : 0;
$smushed_count = is_array( $smushed_images ) ? count( $smushed_images ) : 0;
$stats['smushed'] = ! empty( $this->ng_admin->resmush_ids ) ? $smushed_count - $resmush_count : $smushed_count;
$stats['count'] = $image_count;
wp_send_json_success(
array(
'stats' => $stats,
)
);
}
/**
* Show additional notice if the required plugins are not installed.
*
* @since 2.8.0
*
* @param string $name Setting name.
*/
public function additional_notice( $name ) {
if ( $this->module === $name && ! $this->enabled ) {
?>
<div class="sui-toggle-content">
<div class="sui-notice">
<div class="sui-notice-content">
<div class="sui-notice-message">
<i class="sui-notice-icon sui-icon-info" aria-hidden="true"></i>
<p><?php esc_html_e( 'To use this feature you need to be using NextGen Gallery.', 'wp-smushit' ); ?></p>
</div>
</div>
</div>
</div>
<?php
}
}
/**
* Get the NextGen Image object from attachment id
*
* @param string $pid NextGen Gallery Image ID.
*
* @return stdClass
*/
public function get_nextgen_image_from_id( $pid ) {
// Registry Object for NextGen Gallery.
$registry = C_Component_Registry::get_instance();
// Gallery Storage Object.
$storage = $registry->get_utility( 'I_Gallery_Storage' );
return $storage->object->_image_mapper->find( $pid );
}
/**
* Get image mime type
*
* @param string $file_path File path.
*
* @return bool|string
*/
public function get_file_type( $file_path ) {
if ( empty( $file_path ) || ! file_exists( $file_path ) ) {
return false;
}
$image_mime = false;
if ( function_exists( 'exif_imagetype' ) ) {
$image_type = exif_imagetype( $file_path );
if ( ! empty( $image_type ) ) {
$image_mime = image_type_to_mime_type( $image_type );
}
} else {
$image_details = getimagesize( $file_path );
$image_mime = ! empty( $image_details ) && is_array( $image_details ) ? $image_details['mime'] : '';
}
return $image_mime;
}
/**
* Performs the actual smush process
*
* @usedby: `manual_nextgen`, `auto_smush`, `smush_bulk`
*
* @param string $pid NextGen Gallery Image id.
* @param string $image Nextgen gallery image object.
* @param bool $is_bulk Whether it's called by bulk smush or not.
*
* @return mixed Stats / Status / Error
*/
public function smush_image( $pid = '', $image = '', $is_bulk = false ) {
// Get image, if we have image id.
if ( ! empty( $pid ) ) {
$image = $this->get_nextgen_image_from_id( $pid );
} elseif ( ! empty( $image ) ) {
$pid = $this->get_nextgen_id_from_image( $image );
}
$metadata = ! empty( $image ) ? $image->meta_data : '';
if ( empty( $metadata ) ) {
/**
* We use error_msg for single images to append to the div and error_message to
* append to bulk smush errors list.
*/
wp_send_json_error(
array(
'error' => 'no_metadata',
'error_msg' => '<p class="wp-smush-error-message">' . esc_html__( "We couldn't find the metadata for the image, possibly the image has been deleted.", 'wp-smushit' ) . '</p>',
'error_message' => esc_html__( "We couldn't find the metadata for the image, possibly the image has been deleted.", 'wp-smushit' ),
'file_name' => isset( $image->filename ) ? $image->filename : 'undefined',
)
);
}
$registry = C_Component_Registry::get_instance();
$storage = $registry->get_utility( 'I_Gallery_Storage' );
// Perform Resizing.
$metadata = $this->resize_image( $pid, $image, $metadata, $storage );
// Store Meta.
$image->meta_data = $metadata;
nggdb::update_image_meta( $image->pid, $image->meta_data );
// Smush the main image and its sizes.
$smush = $this->resize_from_meta_data( $image );
$status = '';
if ( ! is_wp_error( $smush ) ) {
$status = $this->ng_admin->show_stats( $pid, $smush );
}
if ( ! $is_bulk ) {
if ( is_wp_error( $smush ) ) {
return $smush;
}
return $status;
}
return $smush;
}
/**
* Refreshes the total image count from the stats when a new image is added to nextgen gallery
* Should be called only if image count need to be updated, use total_count(), otherwise
*/
public function update_stats_image_count() {
NextGen\Stats::total_count( true );
}
/**
* Handles the smushing of each image and its registered sizes
* Calls the function to update the compression stats
*/
public function manual_nextgen() {
$pid = ! empty( $_GET['attachment_id'] ) ? absint( (int) $_GET['attachment_id'] ) : '';
$nonce = ! empty( $_GET['_nonce'] ) ? wp_unslash( $_GET['_nonce'] ) : '';
// Verify Nonce.
if ( ! wp_verify_nonce( $nonce, 'wp_smush_nextgen' ) ) {
wp_send_json_error(
array(
'error' => 'nonce_verification_failed',
)
);
}
// Check for media upload permission.
if ( ! Helper::is_user_allowed( 'upload_files' ) ) {
wp_send_json_error(
array(
'error_msg' => __( "You don't have permission to work with uploaded files.", 'wp-smushit' ),
)
);
}
if ( empty( $pid ) ) {
wp_send_json_error(
array(
'error_msg' => __( 'No attachment ID was provided.', 'wp-smushit' ),
)
);
}
$status = $this->smush_image( $pid );
// Send stats.
if ( is_wp_error( $status ) ) {
/**
* Not used for bulk smush.
*
* @param WP_Error $smush
*/
wp_send_json_error( $status->get_error_message() );
}
wp_send_json_success( $status );
}
/**
* Process auto smush request for NextGen gallery images.
*
* @param stdClass $image Image.
*/
public function auto_smush( $image ) {
if ( ! $this->ng_stats || ! $this->ng_admin ) {
$this->init_modules();
}
$this->smush_image( '', $image );
}
/**
* Checks for file backup, if available for any of the size,
* Function returns true
*
* @param string $pid NextGen gallery image ID.
* @param array $attachment_data Attachment data.
*
* @return bool
*/
public function show_restore_option( $pid, $attachment_data ) {
$backup = WP_Smush::get_instance()->core()->mod->backup;
// Registry Object for NextGen Gallery.
$registry = C_Component_Registry::get_instance();
/**
* Gallery Storage Object.
*
* @var C_Gallery_Storage $storage
*/
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$image = $storage->object->_image_mapper->find( $pid );
// Get image full path.
$attachment_file_path = $storage->get_image_abspath( $image, 'full' );
// Get the backup path.
$backup_path = $backup->get_image_backup_path( $attachment_file_path );
// If one of the backup(Ours/NextGen) exists, show restore option.
if ( file_exists( $backup_path ) || file_exists( $attachment_file_path . '_backup' ) ) {
return true;
}
// Get Sizes, and check for backup.
if ( empty( $attachment_data['sizes'] ) ) {
return false;
}
foreach ( $attachment_data['sizes'] as $size => $size_data ) {
if ( 'full' === $size ) {
continue;
}
// Get file path.
$attachment_size_file_path = $storage->get_image_abspath( $image, $size );
// Get the backup path.
$backup_path = $backup->get_image_backup_path( $attachment_size_file_path );
// If one of the backup(Ours/NextGen) exists, show restore option.
if ( file_exists( $backup_path ) || file_exists( $attachment_size_file_path . '_backup' ) ) {
return true;
}
}
return false;
}
/**
* Handles the ajax request to restore a image from backup and return button HTML
*
* @uses Nextgen\Admin::wp_smush_column_options()
*/
public function restore_image() {
// Check Empty fields.
if ( empty( $_POST['attachment_id'] ) || empty( $_POST['_nonce'] ) ) {
wp_send_json_error(
array(
'error' => 'empty_fields',
'error_msg' => '<div class="wp-smush-error">' . esc_html__( 'Error in processing restore action, Fields empty.', 'wp-smushit' ) . '</div>',
)
);
}
// Check Nonce.
if ( ! wp_verify_nonce( wp_unslash( $_POST['_nonce'] ), 'wp-smush-restore-' . (int) $_POST['attachment_id'] ) ) {
wp_send_json_error(
array(
'error' => 'empty_fields',
'error_msg' => '<div class="wp-smush-error">' . esc_html__( 'Image not restored, Nonce verification failed.', 'wp-smushit' ) . '</div>',
)
);
}
// Check permissions.
if ( ! Helper::is_user_allowed( 'NextGEN Manage gallery' ) ) {
wp_send_json_error(
array(
'error' => 'unauthorized',
'error_msg' => '<div class="wp-smush-error">' . esc_html__( "You don't have permission to do this.", 'wp-smushit' ) . '</div>',
)
);
}
$backup = WP_Smush::get_instance()->core()->mod->backup;
// Store the restore success/failure for all the sizes.
$restored = array();
// Registry Object for NextGen Gallery.
$registry = C_Component_Registry::get_instance();
/**
* Gallery Storage Object.
*
* @var C_Gallery_Storage $storage
*/
$storage = $registry->get_utility( 'I_Gallery_Storage' );
// Process Now.
$image_id = absint( (int) $_POST['attachment_id'] );
// Get the absolute path for original image.
$image = $this->get_nextgen_image_from_id( $image_id );
// Get image full path.
$attachment_file_path = $storage->get_image_abspath( $image, 'full' );
// Get the backup path.
$backup_path = $backup->get_image_backup_path( $attachment_file_path );
// Restoring the full image.
// If file exists, corresponding to our backup path.
if ( file_exists( $backup_path ) ) {
// Restore.
$restored[] = copy( $backup_path, $attachment_file_path );
// Delete the backup.
unlink( $backup_path );
} elseif ( file_exists( $attachment_file_path . '_backup' ) ) {
// Restore from other backups.
$restored[] = copy( $attachment_file_path . '_backup', $attachment_file_path );
}
// Restoring the other sizes.
$attachment_data = ! empty( $image->meta_data['wp_smush'] ) ? $image->meta_data['wp_smush'] : array();
if ( isset( $attachment_data['sizes'] ) && ! empty( $attachment_data['sizes'] ) ) {
foreach ( $attachment_data['sizes'] as $size => $size_data ) {
if ( 'full' === $size ) {
continue;
}
// Get file path.
$attachment_size_file_path = $storage->get_image_abspath( $image, $size );
// Get the backup path.
$backup_path = $backup->get_image_backup_path( $attachment_size_file_path );
// If file exists, corresponding to our backup path.
if ( file_exists( $backup_path ) ) {
// Restore.
$restored[] = copy( $backup_path, $attachment_size_file_path );
// Delete the backup.
unlink( $backup_path );
} elseif ( file_exists( $attachment_size_file_path . '_backup' ) ) {
// Restore from other backups.
$restored[] = copy( $attachment_size_file_path . '_backup', $attachment_size_file_path );
}
}
}
// If any of the image is restored, we count it as success.
if ( in_array( true, $restored, true ) ) {
// Update the global Stats.
$this->ng_admin->update_nextgen_stats( $image_id );
// Remove the Meta.
$this->ng_admin->reset_smushdata( $image, $attachment_file_path );
// Get the Button html without wrapper.
$button_html = $this->ng_admin->wp_smush_column_options( '', $image_id );
wp_send_json_success(
array(
'stats' => $button_html,
)
);
}
wp_send_json_error(
array(
'error_msg' => '<div class="wp-smush-error">' . __( 'Unable to restore image', 'wp-smushit' ) . '</div>',
)
);
}
/**
* Handles the Ajax request to resmush a image, if the full image wasn't smushed earlier
*/
public function resmush_image() {
// Check Empty fields.
if ( empty( $_POST['attachment_id'] ) || empty( $_POST['_nonce'] ) ) {
wp_send_json_error(
array(
'error_msg' => '<div class="wp-smush-error">' . esc_html__( "We couldn't process the image, fields empty.", 'wp-smushit' ) . '</div>',
)
);
}
// Check Nonce.
if ( ! wp_verify_nonce( wp_unslash( $_POST['_nonce'] ), 'wp-smush-resmush-' . (int) $_POST['attachment_id'] ) ) {
wp_send_json_error(
array(
'error_msg' => '<div class="wp-smush-error">' . esc_html__( "Image couldn't be smushed as the nonce verification failed, try reloading the page.", 'wp-smushit' ) . '</div>',
)
);
}
// Check permissions.
if ( ! Helper::is_user_allowed( 'NextGEN Manage gallery' ) ) {
wp_send_json_error(
array(
'error' => 'unauthorized',
'error_msg' => '<div class="wp-smush-error">' . esc_html__( "You don't have permission to do this.", 'wp-smushit' ) . '</div>',
)
);
}
$status = $this->smush_image( (int) $_POST['attachment_id'] );
// If any of the image is restored, we count it as success.
if ( ! empty( $status ) && ! is_wp_error( $status ) ) {
// Send button content.
wp_send_json_success(
array(
'stats' => $status,
)
);
} elseif ( is_wp_error( $status ) ) {
// Send Error Message.
wp_send_json_error(
array(
'error_msg' => sprintf(
/* translators: %s: error message */
'<div class="wp-smush-error">' . __( 'Unable to smush image, %s', 'wp-smushit' ) . '</div>',
$status->get_error_message()
),
)
);
}
}
/**
* Add a pro tag next to the setting title.
*
* @param string $setting_key Setting key name.
*
* @since 3.4.0
*/
public function add_pro_tag( $setting_key ) {
// Return if not NextGen integration.
if ( $this->module !== $setting_key || WP_Smush::is_pro() ) {
return;
}
?>
<span class="sui-tag sui-tag-pro"><?php esc_html_e( 'Pro', 'wp-smushit' ); ?></span>
<?php
}
/**************************************
*
* PRIVATE CLASSES
*/
/**
* Queries Nextgen table for a list of image ids
*
* @return mixed Array of IDs.
*/
protected static function get_nextgen_attachments() {
global $wpdb;
// Query images from the nextgen table.
$images = $wpdb->get_col( "SELECT pid FROM $wpdb->nggpictures ORDER BY pid ASC" ); // db-query ok; no-cache ok.
// Return empty array, if there was error querying the images.
if ( empty( $images ) || is_wp_error( $images ) ) {
$images = array();
}
return $images;
}
/**
* Get the NextGen attachment id from image object
*
* @param stdClass $image Image object.
*
* @return mixed
*/
private function get_nextgen_id_from_image( $image ) {
// Registry Object for NextGen Gallery.
$registry = C_Component_Registry::get_instance();
/**
* Gallery Storage Object.
*
* @var C_Gallery_Storage $storage
*/
$storage = $registry->get_utility( 'I_Gallery_Storage' );
$pid = $storage->object->_get_image_id( $image );
return $pid;
}
/**
* Read the image paths from an attachment's metadata and process each image
* with wp_smushit().
*
* @param stdClass $image Image object.
*
* @return mixed
*/
private function resize_from_meta_data( $image ) {
$smush = WP_Smush::get_instance()->core()->mod->smush;
$errors = new WP_Error();
$stats = array(
'stats' => array_merge(
$smush->get_size_signature(),
array(
'api_version' => - 1,
'lossy' => - 1,
)
),
'sizes' => array(),
);
// Registry Object for NextGen Gallery.
$registry = C_Component_Registry::get_instance();
/**
* Gallery Storage Object.
*
* @var C_Gallery_Storage $storage
*/
$storage = $registry->get_utility( 'I_Gallery_Storage' );
// File path and URL for original image.
// Get an array of sizes available for the $image.
$sizes = $storage->get_image_sizes();
// If images has other registered size, smush them first.
if ( ! empty( $sizes ) ) {
foreach ( $sizes as $size ) {
// Skip Full size, if smush original is not checked.
if ( 'full' === $size && ! $this->settings->get( 'original' ) ) {
continue;
}
// We take the original image. Get the absolute path using the storage object.
$attachment_file_path_size = $storage->get_image_abspath( $image, $size );
$ext = Helper::get_mime_type( $attachment_file_path_size );
if ( $ext ) {
$valid_mime = array_search(
$ext,
array(
'jpg' => 'image/jpeg',
'png' => 'image/png',
'gif' => 'image/gif',
),
true
);
if ( false === $valid_mime ) {
continue;
}
}
/**
* Allows to skip a image from smushing
*
* @param bool , Smush image or not
* @$size string, Size of image being smushed
*/
$smush_image = apply_filters( 'wp_smush_nextgen_image', true, $size );
if ( ! $smush_image ) {
continue;
}
// Store details for each size key.
$response = $smush->do_smushit( $attachment_file_path_size );
if ( is_wp_error( $response ) ) {
return $response;
}
// If there are no stats.
if ( empty( $response['data'] ) ) {
continue;
}
// If the image size grew after smushing, skip it.
if ( $response['data']->after_size > $response['data']->before_size ) {
continue;
}
$stats['sizes'][ $size ] = (object) $smush->array_fill_placeholders( $smush->get_size_signature(), (array) $response['data'] );
if ( empty( $stats['stats']['api_version'] ) || -1 === (int) $stats['stats']['api_version'] ) {
$stats['stats']['api_version'] = $response['data']->api_version;
$stats['stats']['lossy'] = $response['data']->lossy;
$stats['stats']['keep_exif'] = ! empty( $response['data']->keep_exif ) ? $response['data']->keep_exif : 0;
}
}
}
$has_errors = (bool) count( $errors->get_error_messages() );
// Set smush status for all the images, store it in wp-smpro-smush-data.
if ( ! $has_errors ) {
$existing_stats = ( ! empty( $image->meta_data ) && ! empty( $image->meta_data['wp_smush'] ) ) ? $image->meta_data['wp_smush'] : array();
if ( ! empty( $existing_stats ) ) {
// Update stats for each size.
if ( ! empty( $existing_stats['sizes'] ) && ! empty( $stats['sizes'] ) ) {
foreach ( $existing_stats['sizes'] as $size_name => $size_stats ) {
// If stats for a particular size doesn't exists.
if ( empty( $stats['sizes'] ) || empty( $stats['sizes'][ $size_name ] ) ) {
$stats = empty( $stats ) ? array() : $stats;
if ( empty( $stats['sizes'] ) ) {
$stats['sizes'] = array();
}
$stats['sizes'][ $size_name ] = $existing_stats['sizes'][ $size_name ];
} else {
$existing_stats_size = (object) $existing_stats['sizes'][ $size_name ];
// Store the original image size.
$stats['sizes'][ $size_name ]->size_before = ( ! empty( $existing_stats_size->size_before ) && $existing_stats_size->size_before > $stats['sizes'][ $size_name ]->size_before ) ? $existing_stats_size->size_before : $stats['sizes'][ $size_name ]->size_before;
// Update compression percent and bytes saved for each size.
$stats['sizes'][ $size_name ]->bytes = $stats['sizes'][ $size_name ]->bytes + $existing_stats_size->bytes;
// Calculate percentage.
$stats['sizes'][ $size_name ]->percent = $smush->calculate_percentage( $stats['sizes'][ $size_name ], $existing_stats_size );
}
}
}
}
// Total Stats.
$stats = WP_Smush::get_instance()->core()->total_compression( $stats );
$stats['total_images'] = ! empty( $stats['sizes'] ) ? count( $stats['sizes'] ) : 0;
// If there was any compression and there was no error in smushing.
if ( ! $has_errors ) {
/**
* Runs if the image smushing was successful
*
* @param int $ID Image Id
*
* @param array $stats Smush Stats for the image
*/
do_action( 'wp_smush_image_optimised_nextgen', $image->pid, $stats );
}
$image->meta_data['wp_smush'] = $stats;
nggdb::update_image_meta( $image->pid, $image->meta_data );
// Allows To get the stats for each image, after the image is smushed.
do_action( 'wp_smush_nextgen_image_stats', $image->pid, $stats );
}
return $image->meta_data['wp_smush'];
}
/**
* Get file extension from file path
*
* @param string $file_path Absolute image path to get the mime for.
*
* @return string Null/ Mime Type
*/
private function get_file_ext( $file_path = '' ) {
if ( empty( $file_path ) ) {
return '';
}
return Helper::get_mime_type( $file_path );
}
/**
* Optionally resize a NextGen image
*
* @param int $attachment_id Gallery Image id.
* @param stdClass $image Image object for NextGen gallery.
* @param string|array $meta Image meta from nextgen gallery.
* @param C_Gallery_Storage $storage Storage object for nextgen gallery.
*
* @return mixed
*/
private function resize_image( $attachment_id, $image, $meta, $storage ) {
if ( empty( $attachment_id ) || empty( $meta ) || ! is_object( $storage ) ) {
return $meta;
}
$resize = WP_Smush::get_instance()->core()->mod->resize;
// Initialize resize class.
$resize->initialize();
// If resizing not enabled, or if both max width and height is set to 0, return.
if ( ! $resize->resize_enabled || ( 0 === $resize->max_w && 0 === $resize->max_h ) ) {
return $meta;
}
$file_path = $storage->get_image_abspath( $image );
if ( ! file_exists( $file_path ) ) {
return $meta;
}
$ext = $this->get_file_ext( $file_path );
// If type of upload doesn't matches the criteria return.
$mime_supported = apply_filters( 'wp_smush_resmush_mime_supported', in_array( $ext, Core::$mime_types, true ), $ext );
if ( ! empty( $mime ) && ! $mime_supported ) {
return $meta;
}
// If already resized.
if ( ! empty( $meta['wp_smush_resize_savings'] ) ) {
return $meta;
}
$sizes = $storage->get_image_sizes();
$should_resize = true;
/**
* Filter whether the NextGen image should be resized or not
*
* @since 2.3
*
* @param bool $should_resize
*
* @param object NextGen Gallery image object
*
* @param array NextGen Gallery image object
*
* @param string $context The type of upload action. Values include 'upload' or 'sideload'.
*/
$should_resize = apply_filters( 'wp_smush_resize_nextgen_image', $should_resize, $image, $meta );
if ( ! $should_resize ) {
return $meta;
}
$original_file_size = filesize( $file_path );
$resized = $resize->perform_resize( $file_path, $original_file_size, $attachment_id, array(), false );
// If resize wasn't successful.
if ( ! $resized || $resized['filesize'] === $original_file_size ) {
// Unlink Image, if other size path is not similar.
$this->maybe_unlink( $file_path, $sizes, $image, $storage );
return $meta;
} else {
// Else Replace the Original file with resized file.
$replaced = copy( $resized['file_path'], $file_path );
$this->maybe_unlink( $resized['file_path'], $sizes, $image, $storage );
}
if ( $replaced ) {
// Updated File size.
$u_file_size = filesize( $file_path );
$savings['bytes'] = $original_file_size > $u_file_size ? $original_file_size - $u_file_size : 0;
$savings['size_before'] = $original_file_size;
$savings['size_after'] = $u_file_size;
// Store savings in metadata.
if ( ! empty( $savings ) ) {
$meta['wp_smush_resize_savings'] = $savings;
}
// Update dimensions of the image in meta.
$meta['width'] = ! empty( $resized['width'] ) ? $resized['width'] : $meta['width'];
$meta['full']['width'] = ! empty( $resized['width'] ) ? $resized['width'] : $meta['width'];
$meta['height'] = ! empty( $resized['height'] ) ? $resized['height'] : $meta['height'];
$meta['full']['height'] = ! empty( $resized['height'] ) ? $resized['height'] : $meta['height'];
/**
* Called after the image has been successfully resized
* Can be used to update the stored stats
*/
do_action( 'wp_smush_image_nextgen_resized', $attachment_id, array( 'stats' => $savings ) );
/**
* Called after the image has been successfully resized
* Can be used to update the stored stats
*/
do_action( 'wp_smush_image_resized', $attachment_id, $savings );
}
return $meta;
}
/**
* Unlinks a file if none of the thumbnails have same file path
*
* @param string $path Full path of the file to be unlinked.
* @param array $sizes All the available image sizes for the image.
* @param object $image Image object to fetch the full path of all the sizes.
* @param object $storage Gallery storage object.
*
* @return bool Whether the file was unlinked or not
*/
private function maybe_unlink( $path, $sizes, $image, $storage ) {
if ( empty( $path ) || ! is_object( $storage ) || ! is_object( $image ) ) {
return false;
}
// Unlink directly if meta value is not specified.
if ( empty( $sizes ) ) {
unlink( $path );
}
$unlink = true;
// Check if the file name is similar to one of the image sizes.
$path_parts = pathinfo( $path );
$filename = ! empty( $path_parts['basename'] ) ? $path_parts['basename'] : $path_parts['filename'];
foreach ( $sizes as $image_size ) {
$file_path_size = $storage->get_image_abspath( $image, $image_size );
if ( false === strpos( $file_path_size, $filename ) ) {
continue;
}
$unlink = false;
}
// Unlink the file.
if ( $unlink ) {
unlink( $path );
}
return $unlink;
}
/**
* Extend NextGen Mixin class and override the generate_image_size, to optimize dynamic thumbnails, generated by
* NextGen, check for auto smush.
*
* @since 3.3.0
*/
private function add_mixins() {
if ( ! class_exists( '\Mixin' ) || ! WP_Smush::get_instance()->core()->mod->smush->is_auto_smush_enabled() ) {
return;
}
// Extend NextGen Mixin class to smush dynamic images.
new NextGen\Thumbs();
if ( ! get_option( 'ngg_options' ) ) {
return;
}
$storage = C_Gallery_Storage::get_instance();
$storage->get_wrapped_instance()->add_mixin( '\\Smush\\Core\Integrations\\NextGen\\Thumbs' );
}
}
File Manager Version 1.0, Coded By Lucas
Email: hehe@yahoo.com