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<?php

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/**

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* Ad blocker frontend functionality.

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class Advanced_Ads_Ad_Blocker {

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/**

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* Singleton instance of the plugin

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* @var Advanced_Ads_Ad_Blocker

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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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* Plugins directory URL

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* @var string

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protected $plugins_url;

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/**

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* Initialize the module

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private function __construct() {

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$options = $this->options();

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if ( ! empty ( $options['use-adblocker'] ) &&

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! empty ( $options['folder_name'] ) &&

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! empty ( $options['module_can_work'] ) &&

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$options['upload_dir']

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) {

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$this->plugins_url = plugins_url();

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add_action( 'wp_enqueue_scripts', [ $this, 'edit_script_output' ], 101 );

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}

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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

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* @since 1.0.0

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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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* Edit the script output (URL's) for all advanced-ads plugins

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* @since 1.0.0

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public function edit_script_output() {

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global $wp_scripts, $wp_styles;

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// Get all plugin options

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$options = $this->options();

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// Check if the asset folder is set (check if this is installed yet)

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if( isset( $options['folder_name'] ) && $options['folder_name'] != '' )

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{

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// Loop through all script files and change the URL from which they are loaded

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if( is_object( $wp_scripts ) && is_array( $wp_scripts->registered ) ) foreach( $wp_scripts->registered as $script )

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{

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if ( $script->src && is_string( $script->src ) && strpos( $script->src, 'advanced-ads' ) !== false ) {

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$script->src = $this->clean_up_filename( $script->src );

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}

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}

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// Loop through all style files and change the URL from which they are loaded

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if( is_array( $wp_styles->registered ) ) foreach( $wp_styles->registered as $style )

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{

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if( strpos( $style->src, 'advanced-ads' ) !== false )

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{

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$style->src = $this->clean_up_filename( $style->src );

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}

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}

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}

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}

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public function clean_up_filename( $file ) {

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$options = $this->options();

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$upload_dir = $options['upload_dir'];

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$url = str_replace( $this->plugins_url, '', $file );

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if ( isset( $options['lookup_table'][ $url ] ) && is_array( $options['lookup_table'][ $url ] ) && isset( $options['lookup_table'][ $url ]['path'] ) ) {

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return trailingslashit( $upload_dir['baseurl'] ) . trailingslashit( $options['folder_name'] ) . $options['lookup_table'][ $url ]['path'];

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} elseif ( isset( $options['lookup_table'][ $url ] ) ) {

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return trailingslashit( $upload_dir['baseurl'] ) . trailingslashit( $options['folder_name'] ) . $options['lookup_table'][ $url ];

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}

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return $file;

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}

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/**

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* Return module options

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* @param bool $force Whether the options should be fetched regardless if it has already been done. Is needed in AJAX calls.

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* @return array

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public function options( $force = false ) {

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if ( ! isset( $this->options ) || $force ) {

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if ( function_exists( 'is_multisite' ) && is_multisite() ) {

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global $current_site;

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// Switch to main blog.

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switch_to_blog( $current_site->blog_id );

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$this->options = get_option( ADVADS_AB_SLUG, [] );

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// Do not init options in the 'Advanced_Ads_Plugin' class.

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$advads_options = (array) get_option( ADVADS_SLUG, [] );

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$upload_dir = wp_upload_dir();

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restore_current_blog();

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} else {

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$this->options = get_option( ADVADS_AB_SLUG, [] );

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

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$upload_dir = wp_upload_dir();

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}

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if ( ! $this->options ) {

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$this->options = [];

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}

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$this->options['use-adblocker'] = ! empty( $advads_options['use-adblocker'] );

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if ( $upload_dir['error'] ) {

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

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} else {

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$upload_dir['url'] = set_url_scheme( $upload_dir['url'] );

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$upload_dir['baseurl'] = set_url_scheme( $upload_dir['baseurl'] );

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// array, that has indices 'basedir' and 'baseurl'

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

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}

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}

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return $this->options;

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}

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/**

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* Update module options.

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* @param array $new_options New options.

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public function update_options( $new_options ) {

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if ( ! is_array( $new_options ) ) {

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return;

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}

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update_option( ADVADS_AB_SLUG, $new_options );

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// We do not save the following keys to the database.

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if ( isset( $this->options['use-adblocker'] ) ) {

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$new_options['use-adblocker'] = $this->options['use-adblocker'];

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}

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if ( isset( $this->options['upload_dir'] ) ) {

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

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}

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$this->options = $new_options;

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}

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}

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