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<?php // phpcs:ignoreFile

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/**

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* Ad blocker admin functionality.

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class Advanced_Ads_Ad_Blocker_Admin {

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/**

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* Singleton instance of the plugin

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* @var Advanced_Ads_Ad_Blocker_Admin

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protected static $instance;

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/**

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* Module options

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* @var array (if loaded)

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protected $options;

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/**

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* Pattern to search assets using preg_match. The string ends with .css/.js/.png/.gif

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* @var string

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protected $search_file_pattern = '/(css|js|png|gif)$/';

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/**

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* Pattern to exclide directories from search. The string does not contain '/vendor/' or '/lib/' or '/admin/' or /node_modules/

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* @var string

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protected $exclude_dir_pattern = '/(\/vendor\/|\/lib\/|\/admin\/|\/node_modules\/)/';

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/**

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* Array, containing path information on the currently configured uploads directory

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* @var array

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protected $upload_dir;

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/**

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* Error messages for user

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* @var WP_Error

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protected $error_messages;

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/**

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* Initialize the module

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private function __construct() {

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// add module settings to Advanced Ads settings page

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add_action( 'advanced-ads-settings-init', [ $this, 'settings_init' ], 9, 1 );

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$is_main_site = is_main_site( get_current_blog_id() );

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if ( ! $is_main_site ) {

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return;

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}

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// Get the most recent options values

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$this->options = Advanced_Ads_Ad_Blocker::get_instance()->options();

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$this->upload_dir = $this->options['upload_dir'];

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add_action( 'admin_init', [ $this, 'process_auto_update' ] );

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$this->error_messages = new WP_Error();

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}

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/**

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* Return an instance of Advanced_Ads_Ad_Blocker

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* @return Advanced_Ads_Ad_Blocker_Admin

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public static function get_instance() {

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// If the single instance hasn't been set, set it now.

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if (null === self::$instance)

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{

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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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* Add settings to settings page.

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* @param string $hook settings page hook

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public function settings_init( $hook ) {

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add_settings_field(

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'use-adblocker',

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__( 'Ad blocker fix', 'advanced-ads' ),

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[ $this, 'render_settings_use_adblocker' ],

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$hook,

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'advanced_ads_adblocker_setting_section'

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);

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}

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/**

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* Render setting to enable/disable adblocker.

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public function render_settings_use_adblocker() {

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$is_main_site = is_main_site( get_current_blog_id() );

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$checked = ! empty( Advanced_Ads::get_instance()->options()['use-adblocker'] );

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include ADVADS_AB_BASE_PATH . 'admin/views/setting-use-adblocker.php';

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// if this is a sub site in a network, don't run the rebuild form code.

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if ( ! $is_main_site ) {

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return;

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}

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// add the rebuild form directly after the settings

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<?php

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$button_disabled = true;

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$upload_dir = $this->upload_dir;

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$options = $this->options;

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include ADVADS_AB_BASE_PATH . 'admin/views/rebuild_form.php';

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</div>

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<?php

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}

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/**

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* Render the ad-blocker rebuild assets form

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public function add_asset_rebuild_form() {

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global $wp_filesystem;

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$success = false;

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$message = '';

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$fs_connect = Advanced_Ads_Filesystem::get_instance()->fs_connect( $this->upload_dir['basedir'] );

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if ( $fs_connect === false || is_wp_error( $fs_connect ) ) {

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$message = __( 'Unable to connect to the filesystem. Please confirm your credentials.', 'advanced-ads' );

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if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->get_error_code() ) {

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$message = esc_html( $wp_filesystem->errors->get_error_message() );

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}

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if ( is_wp_error( $fs_connect ) && $fs_connect->get_error_code() ) {

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$message = esc_html( $fs_connect->get_error_message() );

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}

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} else {

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$output = $this->process_form();

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if ( is_wp_error( $output ) ) {

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$message = $output->get_error_message();

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} else {

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$success = true;

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$message = __( 'The asset folder was rebuilt successfully', 'advanced-ads' );

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}

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}

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$upload_dir = $this->upload_dir;

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$button_disabled = false;

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$options = Advanced_Ads_Ad_Blocker::get_instance()->options( true );

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include ADVADS_AB_BASE_PATH . 'admin/views/rebuild_form.php';

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}

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/**

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* Perform processing of the rebuild_form, sent by user

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* @return true|WP_Error true on success, WP_Error in case of error

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**/

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private function process_form() {

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// at this point we do not need ftp/ssh credentials anymore

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$form_post_fields = array_intersect_key( $_POST, [ 'advads_ab_assign_new_folder' => false ] );

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$this->create_dummy_plugin( $form_post_fields );

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if ( $error_messages = $this->error_messages->get_error_messages() ) {

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foreach ( $error_messages as $error_message ) {

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Advanced_Ads::log( __METHOD__ . ': ' . $error_message );

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}

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return $this->error_messages;

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}

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return true;

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}

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/**

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* Creates dummy plugin and return new options, that need to be stored in database.

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* @param array $form_post_fields options, POST data sent by user.

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* @return array $new_options - options, that need to be stored in database.

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public function create_dummy_plugin( $form_post_fields = [] ) {

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global $wp_filesystem;

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$need_assign_new_name = isset( $form_post_fields['advads_ab_assign_new_folder'] );

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if ( ! $this->upload_dir ) {

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$message = __( 'There is no writable upload folder', 'advanced-ads' );

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$this->error_messages->add( 'create_dummy_1', $message);

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return false;

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}

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$new_options = [

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'lookup_table' => isset( $this->options['lookup_table'] ) ? $this->options['lookup_table'] : [],

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];

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$new_options_error = $new_options;

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// $new_options_error does not have the 'module_can_work' key - ad-blocker script will be inactive and the asset folder will be rebuilt next time

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$new_options['module_can_work'] = true;

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$existing_files = @scandir( $this->upload_dir['basedir'] );

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if ( $existing_files ) {

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$existing_files = array_diff( $existing_files, [ '..', '.' ] );

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} else {

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$existing_files = [];

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}

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if ( ! empty( $this->options['folder_name'] ) ) {

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$new_options['folder_name'] = $new_options_error['folder_name'] = $this->options['folder_name'];

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$old_folder_normalized = Advanced_Ads_Filesystem::get_instance()->normalize_path( trailingslashit( $this->upload_dir['basedir'] ) ) . $this->options['folder_name'];

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if ( $wp_filesystem->exists( $old_folder_normalized ) ) {

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if ( $need_assign_new_name ) {

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$existing_files[] = (string) $new_options['folder_name'];

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$new_folder_name = $this->generate_unique_name( $existing_files );

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$new_folder_normalized = Advanced_Ads_Filesystem::get_instance()->normalize_path( trailingslashit( $this->upload_dir['basedir'] ) ) . $new_folder_name;

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if ( ! $wp_filesystem->move( $old_folder_normalized, $new_folder_normalized ) ) {

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/* translators: %s old folder name */

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$message = sprintf( __( 'Unable to rename "%s" directory', 'advanced-ads' ), $old_folder_normalized );

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$this->error_messages->add( 'create_dummy_2', $message);

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return false;

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}

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$new_options['folder_name'] = $new_options_error['folder_name'] = $new_folder_name;

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}

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$is_rebuild_needed = count( $this->get_assets() );

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// we have an error while the method is being executed

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Advanced_Ads_Ad_Blocker::get_instance()->update_options( $new_options_error );

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if ( $is_rebuild_needed ) {

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$lookup_table = $this->copy_assets( $new_options['folder_name'], $need_assign_new_name );

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if ( ! $lookup_table ) {

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/* translators: %s folder name */

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$message = sprintf( __( 'Unable to copy assets to the "%s" directory', 'advanced-ads' ), $new_options['folder_name'] );

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$this->error_messages->add( 'create_dummy_3', $message);

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return false;

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}

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$new_options['lookup_table'] = $lookup_table;

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}

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} else {

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// we have an error while the method is being executed

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Advanced_Ads_Ad_Blocker::get_instance()->update_options( $new_options_error );

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// old folder does not exist, let's create it

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$lookup_table = $this->copy_assets( $new_options['folder_name'] );

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if ( ! $lookup_table ) {

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/* translators: %s folder name */

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$message = sprintf( __( 'Unable to copy assets to the "%s" directory', 'advanced-ads' ), $new_options['folder_name'] );

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$this->error_messages->add( 'create_dummy_4', $message);

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return false;

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}

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$new_options['lookup_table'] = $lookup_table;

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}

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} else {

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// It seems this is the first time this plugin was ran, let's create everything we need in order to

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// have this plugin function normally.

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$new_folder_name = $this->generate_unique_name( $existing_files );

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// Create a unique folder name

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$new_options['folder_name'] = $new_options_error['folder_name'] = $new_folder_name;

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// we have an error while the method is being executed

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Advanced_Ads_Ad_Blocker::get_instance()->update_options( $new_options_error );

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// Copy the assets

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$lookup_table = $this->copy_assets( $new_options['folder_name'] );

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if ( ! $lookup_table ) {

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$message = sprintf( __( 'Unable to copy assets to the "%s" directory', 'advanced-ads' ), $new_options['folder_name'] );

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$this->error_messages->add( 'create_dummy_5', $message);

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return false;

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}

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$new_options['lookup_table'] = $lookup_table;

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}

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// successful result, save options and rewrite previous error options

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Advanced_Ads_Ad_Blocker::get_instance()->update_options( $new_options );

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Advanced_Ads_Ad_Health_Notices::get_instance()->remove( 'assets_expired' );

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}

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/**

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* Copy all assets (JS/CSS) to the magic directory.

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* @param string $folder_name Destination folder.

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* @param bool $need_assign_new_name True if we need to assign new random names to assets.

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* @return bool/array Bool false on failure, array lookup table on success.

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public function copy_assets( $folder_name, $need_assign_new_name = false ) {

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global $wp_filesystem;

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// Are we completely rebuilding the assets folder?

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$asset_path = trailingslashit( $this->upload_dir['basedir'] ) . $folder_name ;

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$asset_path_normalized = Advanced_Ads_Filesystem::get_instance()->normalize_path( trailingslashit( $this->upload_dir['basedir'] ) ) . $folder_name;

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// already saved associations (original name => replaced name)

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$rand_asset_names = [];

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if ( $need_assign_new_name ) {

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// Check if there is a previous asset folder

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if ( $wp_filesystem->exists( $asset_path_normalized ) ) {

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// Remove the old directory and its contents

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if ( ! $wp_filesystem->rmdir( trailingslashit( $asset_path_normalized ), true ) ) {

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/* translators: %s directory path */

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$message = sprintf( __( 'We do not have direct write access to the "%s" directory', 'advanced-ads' ), $asset_path_normalized );

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$this->error_messages->add( 'copy_assets_1', $message);

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return false;

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}

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}

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} elseif ( isset( $this->options['lookup_table'] ) ) {

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foreach ( $this->options['lookup_table'] as $orig_path => $replaced_info ) {

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$replaced_path = is_array( $replaced_info ) ? $replaced_info['path'] : $replaced_info;

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$orig_path_components = preg_split('/\//', $orig_path, -1, PREG_SPLIT_NO_EMPTY);

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$replaced_path_components = preg_split('/\//', $replaced_path, -1, PREG_SPLIT_NO_EMPTY);

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// (css, style.css) => (1, 2.css)

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foreach ( $orig_path_components as $k=> $orig_path_part ) {

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$rand_asset_names[ $orig_path_part] = (string) $replaced_path_components[$k];

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}

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}

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}

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// Lookup_table contains associations between the original path of the asset and it path within our magic folder.

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// I.e: [advanced-ads-layer/admin/assets/css/admin.css] => array( path => /12/34/56/78/1347107783.css, mtime => 99 ).

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$assets = $this->get_assets();

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if ( $need_assign_new_name ) {

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$lookup_table = [];

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} else {

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$lookup_table = isset( $this->options['lookup_table'] ) ? $this->options['lookup_table'] : [];

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}

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/* Do not rename assets and folders. If, for example, some library uses in file.css something like this:

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'background: url(/img/image.png)', you should add 'img') to this array */

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$not_rename_assets = [ 'public', 'assets', 'js', 'css', 'fancybox', 'advanced.js', 'jquery.fancybox-1.3.4.css' ];

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// Loop through all the found assets

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foreach ( $assets as $file => $filemtime ) {

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if ( ! file_exists( $file ) ) {

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continue;

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}

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$first_cleanup = str_replace( WP_PLUGIN_DIR , '', $file );

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$first_cleanup_dir = dirname( $first_cleanup );

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$first_cleanup_filename = basename( $first_cleanup );

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$first_cleanup_file_extension = pathinfo( $first_cleanup, PATHINFO_EXTENSION );

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$path_components = preg_split('/\//', $first_cleanup_dir, -1, PREG_SPLIT_NO_EMPTY);

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$path_components_new = [];

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// Interate over directories.

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foreach ( $path_components as $k => $dir ) {

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if ( in_array( $dir, $not_rename_assets ) ) {

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$path_components_new[ $k ] = $dir;

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} elseif ( array_key_exists( $dir, $rand_asset_names ) ) {

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$path_components_new[ $k ] = $rand_asset_names[ $dir ];

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} else {

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$new_rand_folder_name = $this->generate_unique_name( array_values( $rand_asset_names ) );

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$path_components_new[ $k ] = $new_rand_folder_name;

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$rand_asset_names[ $dir ] = (string) $new_rand_folder_name;

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}

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}

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$new_dir_full = trailingslashit( $asset_path ) . trailingslashit( implode( '/', $path_components_new ) );

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$new_dir_full_normalized = trailingslashit( $asset_path_normalized ) . trailingslashit( implode( '/', $path_components_new ) );

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$new_dir = trailingslashit( implode( '/', $path_components_new ) );

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if ( ! in_array( $first_cleanup_filename, $not_rename_assets ) && ( $first_cleanup_file_extension == 'js' || $first_cleanup_file_extension == 'css' ) ) {

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if ( array_key_exists( $first_cleanup_filename, $rand_asset_names ) ) {

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$new_abs_file = $new_dir_full_normalized . $rand_asset_names[$first_cleanup_filename];

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$new_rel_file = $new_dir . $rand_asset_names[$first_cleanup_filename];

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} else {

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$new_filename = $this->generate_unique_name( array_values( $rand_asset_names ), $first_cleanup_file_extension );

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$rand_asset_names[$first_cleanup_filename] = (string) $new_filename;

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$new_abs_file = $new_dir_full_normalized . $new_filename;

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$new_rel_file = $new_dir . $new_filename;

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}

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} else {

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$new_abs_file = $new_dir_full_normalized . $first_cleanup_filename;

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$new_rel_file = $new_dir . $first_cleanup_filename;

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}

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if ( ! file_exists( $new_dir_full_normalized ) ) {

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// Create the path if it doesn't exist (prevents the copy() function from failing)

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if ( ! Advanced_Ads_Filesystem::get_instance()->mkdir_p( $new_dir_full_normalized ) ) {

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$message = sprintf( __( 'We do not have direct write access to the "%s" directory', 'advanced-ads' ), $this->upload_dir['basedir'] );

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$this->error_messages->add( 'copy_assets_4', $message);

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return false;

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}

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}

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$file_normalized = Advanced_Ads_Filesystem::get_instance()->normalize_path( trailingslashit( dirname( $file ) ) ) . basename( $file );

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// Copy the file to our new magic directory,

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if ( ! $wp_filesystem->copy( $file_normalized, $new_abs_file, true, FS_CHMOD_FILE ) ) {

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/* translators: %s directory path */

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$message = sprintf( __( 'Unable to copy files to %s', 'advanced-ads' ), $asset_path_normalized );

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$this->error_messages->add( 'copy_assets_5', $message);

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return false;

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}

[413] Fix | Delete

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$lookup_table[ $first_cleanup ] = [

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'path' => $new_rel_file,

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'mtime' => $filemtime,

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];

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}

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[420] Fix | Delete

return $lookup_table;

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}

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[423] Fix | Delete

/**

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* This function recursively searches for assets

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* @param string $dir The directory to search in.

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* @return Array with pairs: abs_filename => mtime.

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public function recursive_search_assets( $dir ) {

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$assets = [];

[431] Fix | Delete

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$tree = glob( rtrim( $dir, '/' ) . '/*' );

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if ( is_array( $tree ) ) {

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foreach ( $tree as $file ) {

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if ( is_dir( $file ) && ! preg_match( $this->exclude_dir_pattern, $file ) ) {

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$assets = array_merge( $assets, $this->recursive_search_assets( $file ) );

[437] Fix | Delete

} elseif ( is_file( $file ) && preg_match( $this->search_file_pattern, $file ) ) {

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$assets[ $file ] = @filemtime( $file );

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}

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}

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}

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[443] Fix | Delete

return $assets;

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}

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[446] Fix | Delete

/**

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* Returns new or modified assets and their mtimes.

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[449] Fix | Delete

* @return array

[450] Fix | Delete

[451] Fix | Delete

public function get_assets() {

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$new_files_info = $this->recursive_search_assets( trailingslashit( WP_PLUGIN_DIR ) . 'advanced-ads*' );

[453] Fix | Delete

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if ( ! isset( $this->options['lookup_table'] ) || ! isset( $this->upload_dir['basedir'] ) || ! isset( $this->options['folder_name'] ) ) {

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return $new_files_info;

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}

[457] Fix | Delete

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$asset_path = trailingslashit( trailingslashit( $this->upload_dir['basedir'] ) . $this->options['folder_name'] ) ;

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$new_files = [];

[460] Fix | Delete

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foreach ( $new_files_info as $abs_file => $mtime ) {

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$rel_file = str_replace( WP_PLUGIN_DIR , '', $abs_file );

[463] Fix | Delete

[464] Fix | Delete

if ( ! isset( $this->options['lookup_table'][ $rel_file ]['mtime'] ) ||

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$this->options['lookup_table'][ $rel_file ]['mtime'] !== $mtime ||

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! file_exists( $asset_path . $this->options['lookup_table'][$rel_file]['path'] )

[467] Fix | Delete

) {

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$new_files[ $abs_file ] = $mtime;

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}

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}

[471] Fix | Delete

[472] Fix | Delete

return $new_files;

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}

[474] Fix | Delete

[475] Fix | Delete

/**

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* Automatically updates assets

[477] Fix | Delete

[478] Fix | Delete

[479] Fix | Delete

public function process_auto_update() {

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$advads_options = Advanced_Ads::get_instance()->options();

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if ( ! isset( $advads_options['use-adblocker'] )

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|| ! $this->upload_dir

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) { return; }

[484] Fix | Delete

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//if module is working without errors and there are new assets

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if ( ! empty( $this->options['module_can_work'] ) && count( $this->get_assets() ) ) {

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$fs_connect = Advanced_Ads_Filesystem::get_instance()->fs_connect( $this->upload_dir['basedir'] );

[488] Fix | Delete

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if ( false === $fs_connect || is_wp_error( $fs_connect ) ) {

[490] Fix | Delete

// we can not update assets automatically. The user should visit the setting page and update assets manually

[491] Fix | Delete

// disable module and show notice

[492] Fix | Delete

unset( $this->options['module_can_work'] );

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Advanced_Ads_Ad_Blocker::get_instance()->update_options( $this->options );

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return;

[495] Fix | Delete

}

[496] Fix | Delete

[497] Fix | Delete

$this->create_dummy_plugin();

[498] Fix | Delete

[499] Fix | Delete