<?php

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/**

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* Smush class for storing all Ajax related functionality: Ajax class

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*

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* @package Smush\App

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* @since 2.9.0

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*

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* @copyright (c) 2018, Incsub (http://incsub.com)

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*/

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namespace Smush\App;

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use Smush\Core\Configs;

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use Smush\Core\Core;

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use Smush\Core\Error_Handler;

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use Smush\Core\Helper;

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use Smush\Core\Media\Media_Item_Cache;

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use Smush\Core\Modules\Smush;

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use Smush\Core\Settings;

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use WP_Smush;

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if ( ! defined( 'WPINC' ) ) {

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die;

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}

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/**

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* Class Ajax for storing all Ajax related functionality.

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*

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* @since 2.9.0

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*/

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class Ajax {

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/**

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* Settings instance.

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*

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* @since 3.3.0

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* @var Settings

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*/

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private $settings;

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/**

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* Ajax constructor.

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*/

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public function __construct() {

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$this->settings = Settings::get_instance();

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/**

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* QUICK SETUP

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*/

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// Handle skip quick setup action.

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add_action( 'wp_ajax_skip_smush_setup', array( $this, 'skip_smush_setup' ) );

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// Ajax request for quick setup.

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add_action( 'wp_ajax_smush_setup', array( $this, 'smush_setup' ) );

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// Hide tutorials.

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add_action( 'wp_ajax_smush_hide_tutorials', array( $this, 'hide_tutorials' ) );

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/**

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* NOTICES

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*/

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// Handle the smush pro dismiss features notice ajax.

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add_action( 'wp_ajax_dismiss_upgrade_notice', array( $this, 'dismiss_upgrade_notice' ) );

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// Handle the smush pro dismiss features notice ajax.

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add_action( 'wp_ajax_dismiss_update_info', array( $this, 'dismiss_update_info' ) );

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// Handle ajax request to dismiss the s3 warning.

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add_action( 'wp_ajax_dismiss_s3support_alert', array( $this, 'dismiss_s3support_alert' ) );

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// Hide API message.

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add_action( 'wp_ajax_hide_api_message', array( $this, 'hide_api_message' ) );

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add_action( 'wp_ajax_smush_show_warning', array( $this, 'show_warning_ajax' ) );

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// Detect conflicting plugins.

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add_action( 'wp_ajax_smush_dismiss_notice', array( $this, 'dismiss_notice' ) );

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/**

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* SMUSH

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*/

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// Handle Smush Single Ajax.

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add_action( 'wp_ajax_wp_smushit_manual', array( $this, 'smush_manual' ) );

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// Handle resmush operation.

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add_action( 'wp_ajax_smush_resmush_image', array( $this, 'resmush_image' ) );

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// Scan images as per the latest settings.

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add_action( 'wp_ajax_scan_for_resmush', array( $this, 'scan_images' ) );

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// Send smush stats.

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add_action( 'wp_ajax_get_stats', array( $this, 'get_stats' ) );

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/**

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* BULK SMUSH

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*/

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// Ignore image from bulk Smush.

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add_action( 'wp_ajax_wp_smushit_bulk', array( $this, 'process_smush_request' ) );

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// Remove from skip list.

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/**

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* DIRECTORY SMUSH

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*/

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// Handle Ajax request for directory smush stats (stats meta box).

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add_action( 'wp_ajax_get_dir_smush_stats', array( $this, 'get_dir_smush_stats' ) );

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/**

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* LAZY LOADING

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*/

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add_action( 'wp_ajax_smush_toggle_lazy_load', array( $this, 'smush_toggle_lazy_load' ) );

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add_action( 'wp_ajax_smush_remove_icon', array( $this, 'remove_icon' ) );

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/**

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* Configs

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*/

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add_action( 'wp_ajax_smush_upload_config', array( $this, 'upload_config' ) );

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add_action( 'wp_ajax_smush_save_config', array( $this, 'save_config' ) );

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add_action( 'wp_ajax_smush_apply_config', array( $this, 'apply_config' ) );

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/**

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* SETTINGS

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*/

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add_action( 'wp_ajax_recheck_api_status', array( $this, 'recheck_api_status' ) );

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/**

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* MODALS

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*/

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// Hide the new features modal.

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add_action( 'wp_ajax_hide_new_features', array( $this, 'hide_new_features_modal' ) );

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}

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/***************************************

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*

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* QUICK SETUP

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*/

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/**

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* Process ajax action for skipping Smush setup.

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*/

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public function skip_smush_setup() {

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check_ajax_referer( 'smush_quick_setup' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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update_option( 'skip-smush-setup', true );

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wp_send_json_success();

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}

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/**

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* Ajax action to save settings from quick setup.

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*/

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public function smush_setup() {

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check_ajax_referer( 'smush_quick_setup', '_wpnonce' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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$quick_settings = array();

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// Get the settings from $_POST.

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if ( ! empty( $_POST['smush_settings'] ) ) {

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// Required $quick_settings data is escaped later on in code.

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$quick_settings = json_decode( wp_unslash( $_POST['smush_settings'] ) ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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}

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// Check the last settings stored in db.

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$settings = $this->settings->get();

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// Available settings for free/pro version.

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$available = array( 'auto', 'lossy', 'strip_exif', 'original', 'lazy_load', 'usage' );

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$highest_lossy_level = $this->settings->get_highest_lossy_level();

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foreach ( $settings as $name => $values ) {

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// Update only specified settings.

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if ( ! in_array( $name, $available, true ) ) {

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continue;

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}

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// Skip premium features if not a member.

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if ( ! in_array( $name, Settings::$basic_features, true ) && 'usage' !== $name && ! WP_Smush::is_pro() ) {

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continue;

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}

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// Update value in settings.

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if ( 'lossy' === $name ) {

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$settings['lossy'] = ! empty( $quick_settings->{$name} ) ? $highest_lossy_level : Settings::LEVEL_LOSSLESS;

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} else {

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$settings[ $name ] = (bool) $quick_settings->{$name};

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}

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// If Smush originals is selected, enable backups.

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if ( 'original' === $name && $settings[ $name ] && WP_Smush::is_pro() ) {

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$settings['backup'] = true;

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}

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// If lazy load enabled - init defaults.

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if ( 'lazy_load' === $name && $quick_settings->{$name} ) {

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$this->settings->init_lazy_load_defaults();

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}

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}

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// Update the resize sizes.

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$this->settings->set_setting( 'wp-smush-settings', $settings );

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update_option( 'skip-smush-setup', true );

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wp_send_json_success();

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}

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/**

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* Hide tutorials.

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*

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* @sinde 3.8.6

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*/

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public function hide_tutorials() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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update_option( 'wp-smush-hide-tutorials', true, false );

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wp_send_json_success();

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}

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/***************************************

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*

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* NOTICES

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*/

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/**

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* Store a key/value to hide the smush features on bulk page

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*

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* There is no js code related to this action, it seems we are no longer use it, better to clean it?

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*/

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public function dismiss_upgrade_notice() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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update_site_option( 'wp-smush-hide_upgrade_notice', true );

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// No Need to send json response for other requests.

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wp_send_json_success();

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}

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/**

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* Remove the Update info

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*

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* @param bool $remove_notice Remove notice.

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*/

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public function dismiss_update_info( $remove_notice = false ) {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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WP_Smush::get_instance()->core()->mod->smush->dismiss_update_info( $remove_notice );

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}

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/**

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* Hide S3 support alert by setting a flag.

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*/

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public function dismiss_s3support_alert() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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// Just set a flag.

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update_site_option( 'wp-smush-hide_s3support_alert', 1 );

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wp_send_json_success();

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}

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/**

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* Hide API Message

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*/

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public function hide_api_message() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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$api_message = get_site_option( 'wp-smush-api_message', array() );

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if ( ! empty( $api_message ) && is_array( $api_message ) ) {

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$api_message[ key( $api_message ) ]['status'] = 'hide';

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update_site_option( 'wp-smush-api_message', $api_message );

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}

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wp_send_json_success();

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}

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/**

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* Send JSON response whether to show or not the warning

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*/

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public function show_warning_ajax() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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$show = WP_Smush::get_instance()->core()->mod->smush->show_warning();

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wp_send_json( (int) $show );

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}

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/**

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* Dismiss the plugin conflicts notice.

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*

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* @since 3.6.0

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*/

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public function dismiss_notice() {

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check_ajax_referer( 'wp-smush-ajax' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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if ( empty( $_REQUEST['key'] ) ) {

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wp_send_json_error();

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}

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$this->set_notice_dismissed( sanitize_key( $_REQUEST['key'] ) );

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wp_send_json_success();

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}

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private function set_notice_dismissed( $notice ) {

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$option_id = 'wp-smush-dismissed-notices';

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$dismissed_notices = get_option( $option_id, array() );

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$dismissed_notices[ $notice ] = true;

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update_option( $option_id, $dismissed_notices );

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}

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/***************************************

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*

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* SMUSH

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*/

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/**

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* Handle the Ajax request for smushing single image

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*

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* @uses smush_single()

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*/

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public function smush_manual() {

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if ( ! check_ajax_referer( 'wp-smush-ajax', '_nonce', false ) ) {

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( 'Nonce verification failed', 'wp-smushit' ),

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)

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);

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}

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if ( ! Helper::is_user_allowed( 'upload_files' ) ) {

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( "You don't have permission to work with uploaded files.", 'wp-smushit' ),

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)

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);

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}

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if ( ! isset( $_GET['attachment_id'] ) ) {

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( 'No attachment ID was provided.', 'wp-smushit' ),

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)

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);

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}

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$attachment_id = (int) $_GET['attachment_id'];

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// Pass on the attachment id to smush single function.

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WP_Smush::get_instance()->core()->mod->smush->smush_single( $attachment_id );

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}

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/**

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* Resmush the image

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*

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* @uses smush_single()

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*/

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public function resmush_image() {

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// Check empty fields.

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if ( empty( $_POST['attachment_id'] ) || empty( $_POST['_nonce'] ) ) {

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( 'Image not smushed, fields empty.', 'wp-smushit' ),

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)

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);

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}

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// Check nonce.

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if ( ! wp_verify_nonce( wp_unslash( $_POST['_nonce'] ), 'wp-smush-resmush-' . (int) $_POST['attachment_id'] ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( "Image couldn't be smushed as the nonce verification failed, try reloading the page.", 'wp-smushit' ),

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)

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);

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}

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if ( ! Helper::is_user_allowed( 'upload_files' ) ) {

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wp_send_json_error(

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array(

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'error_msg' => esc_html__( "You don't have permission to work with uploaded files.", 'wp-smushit' ),

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)

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);

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}

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$image_id = (int) $_POST['attachment_id'];

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WP_Smush::get_instance()->core()->mod->smush->smush_single( $image_id );

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}

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/**

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* Scans all the smushed attachments to check if they need to be resmushed as per the

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* current settings, as user might have changed one of the configurations "Lossy", "Keep Original", "Preserve Exif"

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*

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* @todo: Needs some refactoring big time

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*/

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public function scan_images() {

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check_ajax_referer( 'save_wp_smush_options', 'wp_smush_options_nonce' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_send_json_error(

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array(

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'notice' => esc_html__( "You don't have permission to do this.", 'wp-smushit' ),

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'noticeType' => 'error',

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)

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);

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}

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// Scanning for NextGen or Media Library.

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$type = isset( $_REQUEST['type'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['type'] ) ) : '';

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/**

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* @hooked wp_smush_nextgen_scan_stats Smush\Core\Integrations\NextGen\Admin::scan_images()

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*/

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$stats = apply_filters( "wp_smush_{$type}_scan_stats", array() );

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return wp_send_json_success( $stats );

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}

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/**

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* Return Latest stats.

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*/

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public function get_stats() {

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check_ajax_referer( 'wp-smush-ajax', '_nonce' );

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// Check capability.

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if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

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wp_die( esc_html__( 'Unauthorized', 'wp-smushit' ), 403 );

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}

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$admin = WP_Smush::get_instance()->admin();

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$stats = $admin->get_global_stats_with_bulk_smush_content();

[452] Fix | Delete

[453] Fix | Delete

wp_send_json_success( $stats );

[454] Fix | Delete

}

[455] Fix | Delete

[456] Fix | Delete

/***************************************

[457] Fix | Delete

*

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* BULK SMUSH

[459] Fix | Delete

*/

[460] Fix | Delete

[461] Fix | Delete

/**

[462] Fix | Delete

* Bulk Smushing Handler.

[463] Fix | Delete

*

[464] Fix | Delete

* Processes the Smush request and sends back the next id for smushing.

[465] Fix | Delete

*/

[466] Fix | Delete

public function process_smush_request() {

[467] Fix | Delete

check_ajax_referer( 'wp-smush-ajax', '_nonce' );

[468] Fix | Delete

[469] Fix | Delete

// Check capability.

[470] Fix | Delete

if ( ! Helper::is_user_allowed( 'manage_options' ) ) {

[471] Fix | Delete

wp_send_json_error(

[472] Fix | Delete

array(

[473] Fix | Delete

'error' => 'unauthorized',

[474] Fix | Delete

'error_message' => esc_html__( "You don't have permission to do this.", 'wp-smushit' ),

[475] Fix | Delete

),

[476] Fix | Delete

403

[477] Fix | Delete

);

[478] Fix | Delete

}

[479] Fix | Delete

[480] Fix | Delete

$new_bulk_smush = ! empty( $_REQUEST['new_bulk_smush_started'] ) && $_REQUEST['new_bulk_smush_started'] !== 'false';

[481] Fix | Delete

if ( $new_bulk_smush ) {

[482] Fix | Delete

do_action( 'wp_smush_bulk_smush_start' );

[483] Fix | Delete

}

[484] Fix | Delete

[485] Fix | Delete

// If the bulk smush needs to be stopped.

[486] Fix | Delete

if ( ! WP_Smush::is_pro() && ! Core::check_bulk_limit() ) {

[487] Fix | Delete

wp_send_json_error(

[488] Fix | Delete

array(

[489] Fix | Delete

'error' => 'limit_exceeded',

[490] Fix | Delete

'continue' => false,

[491] Fix | Delete

)

[492] Fix | Delete

);

[493] Fix | Delete

}

[494] Fix | Delete

[495] Fix | Delete

$attachment_id = 0;

[496] Fix | Delete

if ( ! empty( $_REQUEST['attachment_id'] ) ) {

[497] Fix | Delete

$attachment_id = (int) $_REQUEST['attachment_id'];

[498] Fix | Delete

}

[499] Fix | Delete