<?php

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/**

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* Smush Settings class: Settings

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*

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* @since 3.0 Migrated from old settings class.

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* @package Smush\Core

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*/

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namespace Smush\Core;

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use Smush\Core\CDN\CDN_Helper;

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use Smush\Core\Stats\Global_Stats;

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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 Settings

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*

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* @since 3.0

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*/

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class Settings {

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const SUBSITE_CONTROLS_OPTION_KEY = 'wp-smush-networkwide';

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const SETTINGS_KEY = 'wp-smush-settings';

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const LEVEL_LOSSLESS = 0;

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const LEVEL_SUPER_LOSSY = 1;

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const LEVEL_ULTRA_LOSSY = 2;

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/**

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* Plugin instance.

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*

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* @since 3.0

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*

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* @var null|Settings

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*/

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private static $instance = null;

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/**

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* Settings array.

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*

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* @since 3.2.2

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* @var array $settings

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*/

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private $settings = array();

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/**

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* Default settings array.

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*

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* We don't want it to be edited directly, so we use public get_*, set_* and delete_* methods.

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*

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* @since 3.0 Improved structure.

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* @since 3.2.2 Changed to be a default array.

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* @since 3.8.0 Added webp_mod.

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*

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* @var array

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*/

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private $defaults = array(

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'auto' => true, // works with CDN.

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'lossy' => 0, // works with CDN.

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'strip_exif' => true, // works with CDN.

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'resize' => false,

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'detection' => false,

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'original' => false,

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'backup' => false,

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'no_scale' => false,

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'png_to_jpg' => false, // works with CDN.

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'nextgen' => false,

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's3' => false,

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'gutenberg' => false,

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'js_builder' => false,

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'gform' => false,

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'cdn' => false,

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'auto_resize' => false,

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'webp' => true,

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'usage' => false,

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'accessible_colors' => false,

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'keep_data' => true,

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'lazy_load' => false,

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'background_images' => true,

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'rest_api_support' => false, // CDN option.

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'webp_mod' => false, // WebP module.

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'background_email' => false,

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'webp_direct_conversion' => false,

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'webp_fallback' => false,

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);

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/**

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* Available modules.

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*

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* @since 3.2.2

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* @since 3.8.0 Added webp.

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* @var array $modules

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*/

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private $modules = array( 'bulk', 'integrations', 'lazy_load', 'cdn', 'webp', 'settings' );

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/**

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* List of features/settings that are free.

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*

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* @var array $basic_features

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*/

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public static $basic_features = array( 'bulk', 'auto', 'strip_exif', 'resize', 'original', 'gutenberg', 'js_builder', 'gform', 'lazy_load', 'lossy' );

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/**

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* List of fields in bulk smush form.

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*

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* @used-by save_settings()

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*

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* @var array

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*/

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private $bulk_fields = array( 'lossy', 'bulk', 'auto', 'strip_exif', 'resize', 'original', 'backup', 'png_to_jpg', 'no_scale', 'background_email' );

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/**

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* @since 3.12.6

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*

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* Upsell fields.

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*/

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private $upsell_fields = array( 'background_email' );

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/**

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* List of fields in integration form.

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*

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* @used-by save_settings()

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*

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* @var array

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*/

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private $integrations_fields = array( 'gutenberg', 'gform', 'js_builder', 's3', 'nextgen' );

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/**

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* List of fields in CDN form.

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*

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* @used-by save_settings()

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*

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* @var array

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*/

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private $cdn_fields = array( 'cdn', 'background_images', 'auto_resize', 'webp', 'rest_api_support' );

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/**

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* List of fields in CDN form.

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*

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* @used-by save_settings()

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*

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* @since 3.8.0

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*

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* @var array

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*/

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private $webp_fields = array( 'webp_mod', 'webp_direct_conversion', 'webp_fallback' );

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/**

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* List of fields in Settings form.

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*

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* @used-by save_settings()

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*

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* @var array

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*/

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private $settings_fields = array( 'detection', 'accessible_colors', 'usage', 'keep_data', 'api_auth' );

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/**

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* List of fields in lazy loading form.

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*

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* @used-by save_settings()

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*

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* @var array

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*/

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private $lazy_load_fields = array( 'lazy_load' );

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/**

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* @var array

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*/

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private $activated_subsite_pages;

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/**

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* Return the plugin instance.

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*

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* @since 3.0

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*

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* @return Settings

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*/

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public static function get_instance() {

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if ( ! self::$instance ) {

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self::$instance = new self();

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}

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return self::$instance;

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}

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/**

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* WP_Smush_Settings constructor.

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*/

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private function __construct() {

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// Do not initialize if not in admin area

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// wp_head runs specifically in the frontend, good check to make sure we're accidentally not loading settings on required pages.

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if ( ! is_admin() && ! wp_doing_ajax() && did_action( 'wp_head' ) ) {

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return;

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}

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// Save Settings.

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add_action( 'wp_ajax_smush_save_settings', array( $this, 'save_settings' ) );

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// Reset Settings.

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add_action( 'wp_ajax_reset_settings', array( $this, 'reset' ) );

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add_filter( 'wp_smush_settings', array( $this, 'remove_unavailable' ) );

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add_action( 'switch_blog', array( $this, 'maybe_reset_cache_site_settings' ), 10, 2 );

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$this->init();

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}

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/**

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* Remove settings that are not available on a specific version of WordPress.

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*

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* @since 3.9.1

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*

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* @param array $settings Current settings.

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*

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* @return array

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*/

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public function remove_unavailable( $settings ) {

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global $wp_version;

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if ( version_compare( $wp_version, '5.3', '<' ) ) {

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if ( isset( $this->bulk_fields['no_scale'] ) ) {

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unset( $this->bulk_fields['no_scale'] );

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}

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if ( isset( $settings['no_scale'] ) ) {

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unset( $settings['no_scale'] );

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}

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}

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return $settings;

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}

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/**

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* Get descriptions for all settings.

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*

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* @since 3.8.6 Moved from Core

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*

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* @param string $id Setting ID to get data for.

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* @param string $type What value to get. Accepts: label, short_label or desc.

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*

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* @return string

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*/

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public static function get_setting_data( $id, $type = '' ) {

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$bg_optimization = WP_Smush::get_instance()->core()->mod->bg_optimization;

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if ( $bg_optimization->can_use_background() ) {

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$bg_email_desc = esc_html__( 'Be notified via email about the bulk smush status when the process has completed.', 'wp-smushit' );

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} else {

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$bg_email_desc = sprintf(

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/* translators: %s Email address */

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esc_html__( "Be notified via email about the bulk smush status when the process has completed. You'll receive an email at %s.", 'wp-smushit' ),

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'<strong>' . $bg_optimization->get_mail_recipient() . '</strong>'

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);

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}

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$settings = array(

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'background_email' => array(

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'label' => esc_html__( 'Enable email notification', 'wp-smushit' ),

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'short_label' => esc_html__( 'Email Notification', 'wp-smushit' ),

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'desc' => $bg_email_desc,

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),

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'bulk' => array(

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'short_label' => esc_html__( 'Image Sizes', 'wp-smushit' ),

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'desc' => esc_html__( 'WordPress generates multiple image thumbnails for each image you upload. Choose which of those thumbnail sizes you want to include when bulk smushing.', 'wp-smushit' ),

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),

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'auto' => array(

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'label' => esc_html__( 'Automatically compress my images on upload', 'wp-smushit' ),

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'short_label' => esc_html__( 'Automatic compression', 'wp-smushit' ),

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'desc' => esc_html__( 'When you upload images to your site, we will automatically optimize and compress them for you.', 'wp-smushit' ),

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),

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'lossy' => array(

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'label' => esc_html__( 'Choose Compression Level', 'wp-smushit' ),

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'short_label' => esc_html__( 'Smush Mode', 'wp-smushit' ),

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'desc' => sprintf(

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/* translators: 1: Opening <strong> 2: Closing </strong> */

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esc_html__( 'Choose the level of compression that suits your needs. We recommend %1$sUltra%2$s for faster sites and impressive image quality.', 'wp-smushit' ),

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'<strong>',

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'</strong>'

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),

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),

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'strip_exif' => array(

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'label' => esc_html__( 'Strip my image metadata', 'wp-smushit' ),

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'short_label' => esc_html__( 'Metadata', 'wp-smushit' ),

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'desc' => esc_html__( 'Photos often store camera settings in the file, i.e., focal length, date, time and location. Removing EXIF data reduces the file size. Note: it does not strip SEO metadata.', 'wp-smushit' ),

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),

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'resize' => array(

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'label' => esc_html__( 'Resize original images', 'wp-smushit' ),

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'short_label' => esc_html__( 'Image Resizing', 'wp-smushit' ),

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'desc' => esc_html__( 'As of version 5.3, WordPress creates a scaled version of uploaded images over 2560x2560px by default, and keeps your original uploaded images as a backup. If desired, you can choose a different resizing threshold or disable the scaled images altogether.', 'wp-smushit' ),

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),

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'no_scale' => array(

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'label' => esc_html__( 'Disable scaled images', 'wp-smushit' ),

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'short_label' => esc_html__( 'Disable Scaled Images', 'wp-smushit' ),

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'desc' => esc_html__( 'Enable this feature to disable automatic resizing of images above the threshold, keeping only your original uploaded images. Note: WordPress excludes PNG images from automatic image resizing. As a result, only uploaded JPEG images are affected by these settings.', 'wp-smushit' ),

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),

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'detection' => array(

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'label' => esc_html__( 'Detect and show incorrectly sized images', 'wp-smushit' ),

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'short_label' => esc_html__( 'Image Resize Detection', 'wp-smushit' ),

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'desc' => esc_html__( 'This will add functionality to your website that highlights images that are either too large or too small for their containers.', 'wp-smushit' ),

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),

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'original' => array(

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'label' => esc_html__( 'Optimize original images', 'wp-smushit' ),

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'short_label' => esc_html__( 'Original Images', 'wp-smushit' ),

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'desc' => esc_html__( 'Choose how you want Smush to handle the original image file when you run a bulk smush.', 'wp-smushit' ),

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),

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'backup' => array(

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'label' => esc_html__( 'Backup original images', 'wp-smushit' ),

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'short_label' => esc_html__( 'Backup Original Images', 'wp-smushit' ),

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'desc' => esc_html__( 'Enable this feature to save a copy of your original images so you can restore them at any point. Note: Keeping a copy of the original images can significantly increase the size of your uploads folder.', 'wp-smushit' ),

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),

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'png_to_jpg' => array(

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'label' => esc_html__( 'Auto-convert PNGs to JPEGs (lossy)', 'wp-smushit' ),

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'short_label' => esc_html__( 'PNG to JPEG Conversion', 'wp-smushit' ),

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'desc' => esc_html__( 'When you compress a PNG, Smush will check if converting it to JPEG could further reduce its size.', 'wp-smushit' ),

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),

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'accessible_colors' => array(

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'label' => esc_html__( 'Enable high contrast mode', 'wp-smushit' ),

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'short_label' => esc_html__( 'Color Accessibility', 'wp-smushit' ),

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'desc' => esc_html__( 'Increase the visibility and accessibility of elements and components to meet WCAG AAA requirements.', 'wp-smushit' ),

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),

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'usage' => array(

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'label' => esc_html__( 'Allow usage tracking', 'wp-smushit' ),

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'short_label' => esc_html__( 'Usage Tracking', 'wp-smushit' ),

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'desc' => esc_html__( 'Help make Smush better by letting our designers learn how you’re using the plugin.', 'wp-smushit' ),

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),

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);

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/**

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* Allow adding other settings via filtering the variable

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*

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* Like Nextgen and S3 integration

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*/

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$settings = apply_filters( 'wp_smush_settings', $settings );

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if ( ! isset( $settings[ $id ] ) ) {

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return '';

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}

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if ( 'short-label' === $type ) {

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return ! empty( $settings[ $id ]['short_label'] ) ? $settings[ $id ]['short_label'] : $settings[ $id ]['label'];

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}

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if ( 'label' === $type ) {

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return ! empty( $settings[ $id ]['label'] ) ? $settings[ $id ]['label'] : $settings[ $id ]['short_label'];

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}

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if ( 'desc' === $type ) {

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return $settings[ $id ]['desc'];

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}

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return $settings[ $id ];

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}

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/**

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* Getter method for bulk settings fields.

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*

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* @since 3.2.2

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* @return array

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*/

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public function get_bulk_fields() {

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return $this->bulk_fields;

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}

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/**

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* Getter method for integration fields.

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*

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* @since 3.2.2

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* @return array

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*/

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public function get_integrations_fields() {

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return $this->integrations_fields;

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}

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/**

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* Getter method for CDN fields.

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*

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* @since 3.2.2

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* @return array

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*/

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public function get_cdn_fields() {

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return $this->cdn_fields;

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}

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public function is_upsell_field( $field ) {

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return in_array( $field, $this->upsell_fields, true );

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}

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public function is_pro_field( $field ) {

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return ! in_array( $field, self::$basic_features, true );

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}

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public function can_access_pro_field( $field ) {

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if ( WP_Smush::is_pro() ) {

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return true;

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}

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$bg_optimization = WP_Smush::get_instance()->core()->mod->bg_optimization;

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return 'background_email' === $field && $bg_optimization->can_use_background();

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}

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/**

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* Getter method for settings fields.

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*

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* @since 3.2.2

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* @return array

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*/

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public function get_settings_fields() {

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return $this->settings_fields;

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}

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/**

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* Getter method for lazy loading fields.

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*

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* @since 3.3.0

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* @return array

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*/

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public function get_lazy_load_fields() {

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return $this->lazy_load_fields;

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}

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public function get_webp_fields() {

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return $this->webp_fields;

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}

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/**

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* Init settings.

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*

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* If there are no settings in the database, populate it with the defaults, if settings are present

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*/

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public function init() {

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}

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/**

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* Checks whether the settings are applicable for the whole network/site or sitewise (multisite).

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*/

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public function is_network_enabled() {

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return $this->is_network_setting( self::SETTINGS_KEY );

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}

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public function is_network_setting( $option_id ) {

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if ( ! is_multisite() ) {

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return false;

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}

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$global_setting_keys = array(

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'wp_smush_api_auth',

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self::SUBSITE_CONTROLS_OPTION_KEY,

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);

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if ( in_array( $option_id, $global_setting_keys, true ) ) {

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return true;

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}

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[453] Fix | Delete

$subsite_modules = $this->get_activated_subsite_pages();

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if ( empty( $subsite_modules ) ) {

[455] Fix | Delete

return true;

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}

[457] Fix | Delete

[458] Fix | Delete

$module_option_keys = array(

[459] Fix | Delete

'wp-smush-image_sizes' => 'bulk',

[460] Fix | Delete

'wp-smush-resize_sizes' => 'bulk',

[461] Fix | Delete

'wp-smush-lazy_load' => 'lazy_load',

[462] Fix | Delete

'wp-smush-cdn_status' => 'cdn',

[463] Fix | Delete

);

[464] Fix | Delete

[465] Fix | Delete

if ( ! isset( $module_option_keys[ $option_id ] ) ) {

[466] Fix | Delete

return self::is_ajax_network_admin() || is_network_admin();

[467] Fix | Delete

}

[468] Fix | Delete

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$module = $module_option_keys[ $option_id ];

[470] Fix | Delete

[471] Fix | Delete

return ! in_array( $module, $subsite_modules, true );

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}

[473] Fix | Delete

[474] Fix | Delete

/**

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* Check if user is able to access the page.

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*

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* @since 3.2.2

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*

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* @param string|bool $module Check if a specific module is allowed.

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* @param bool $top_menu Is this a top level menu point? Defaults to a Smush sub page.

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*

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* @return bool|array Can access page or not. If custom access rules defined - return custom rules array.

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*/

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public static function can_access( $module = false, $top_menu = false ) {

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// Allow all access on single site installs.

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if ( ! is_multisite() ) {

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return true;

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}

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$access = get_site_option( self::SUBSITE_CONTROLS_OPTION_KEY );

[491] Fix | Delete

[492] Fix | Delete

// Check to if the settings update is network-wide or not ( only if in network admin ).

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$action = filter_input( INPUT_POST, 'action', FILTER_SANITIZE_SPECIAL_CHARS );

[494] Fix | Delete

[495] Fix | Delete

$is_network_admin = is_network_admin() || 'save_settings' === $action;

[496] Fix | Delete

[497] Fix | Delete

if ( self::is_ajax_network_admin() ) {

[498] Fix | Delete

$is_network_admin = true;

[499] Fix | Delete