<?php

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/**

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* An implementation for ads served through Equativ Smart Ad Server.

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*

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* @package automattic/jetpack

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*/

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use Automattic\Jetpack\Assets;

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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// phpcs:disable WordPress.WP.EnqueuedResources.NonEnqueuedScript

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require_once WORDADS_ROOT . '/php/class-wordads-array-utils.php';

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/**

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* Contains all the implementation details for Smart ads

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*/

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class WordAds_Smart {

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/**

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* The single instance of the class.

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*

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* @var WordAds_Smart

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*/

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protected static $instance = null;

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/**

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* The parameters for WordAds.

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*

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* @var WordAds_Params

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*/

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private $params;

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/**

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* Has Smart asset been enqueued?

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*

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* @var bool True if Smart asset has been enqueued.

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*/

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private $is_asset_enqueued = false;

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/**

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* Supported formats.

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* sidebar_widget formats represents the legacy Jetpack sidebar widget.

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*

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* @var array

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*/

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private $formats = array(

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'top' => array(

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'enabled' => false,

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),

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'inline' => array(

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'enabled' => false,

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),

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'belowpost' => array(

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'enabled' => false,

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),

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'bottom_sticky' => array(

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'enabled' => false,

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),

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'sidebar_sticky_right' => array(

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'enabled' => false,

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),

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'gutenberg_rectangle' => array(

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'enabled' => false,

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),

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'gutenberg_leaderboard' => array(

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'enabled' => false,

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),

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'gutenberg_mobile_leaderboard' => array(

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'enabled' => false,

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),

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'gutenberg_skyscraper' => array(

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'enabled' => false,

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),

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'sidebar_widget_mediumrectangle' => array(

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'enabled' => false,

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),

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'sidebar_widget_leaderboard' => array(

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'enabled' => false,

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),

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'sidebar_widget_wideskyscraper' => array(

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'enabled' => false,

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),

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'shortcode' => array(

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'enabled' => false,

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),

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);

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/**

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* Private constructor.

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*/

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private function __construct() {

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}

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/**

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* Main Class Instance.

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*

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* Ensures only one instance of WordAds_Smart is loaded or can be loaded.

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*

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* @return WordAds_Smart

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*/

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public static function instance(): self {

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if ( null === 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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* Initialize the ads.

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*

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* @param WordAds_Params $params Object containing WordAds settings.

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*

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* @return void

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*/

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public function init( WordAds_Params $params ) {

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$this->params = $params;

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$this->enable_formats();

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$this->override_formats_from_query_string();

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if ( $this->has_any_format_enabled() ) {

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$this->insert_ads();

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}

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}

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/**

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* Enqueue any front-end CSS and JS.

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*

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* @return void

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*/

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public function enqueue_assets() {

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if ( $this->is_asset_enqueued ) {

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return;

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}

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add_action( 'wp_head', array( $this, 'insert_config' ) );

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Assets::register_script(

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'adflow_script_loader',

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'_inc/build/wordads/js/adflow-loader.min.js',

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JETPACK__PLUGIN_FILE,

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array(

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'nonmin_path' => 'modules/wordads/js/adflow-loader.js',

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'dependencies' => array(),

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'enqueue' => true,

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'version' => JETPACK__VERSION,

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)

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);

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wp_enqueue_script(

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'adflow_config',

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esc_url( $this->get_config_url() ),

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array( 'adflow_script_loader' ),

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JETPACK__VERSION,

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false

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);

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$this->is_asset_enqueued = true;

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}

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/**

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* Inserts ad tags on the page.

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*

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* @return void

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*/

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private function insert_ads() {

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if ( $this->params->is_amp ) {

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return;

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}

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// Don't run on not found pages.

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if ( is_404() ) {

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return;

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}

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// Add the resource hints.

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add_filter( 'wp_resource_hints', array( $this, 'resource_hints' ), 10, 2 );

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// Enqueue JS assets.

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$this->enqueue_assets();

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$is_static_front_page = is_front_page() && 'page' === get_option( 'show_on_front' );

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if ( ! ( $is_static_front_page || is_home() ) ) {

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if ( $this->formats['inline']['enabled'] ) {

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add_filter(

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'the_content',

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array( $this, 'insert_inline_marker' ),

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10

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);

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}

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}

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if ( $this->formats['bottom_sticky']['enabled'] ) {

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// Disable IPW slot.

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add_filter( 'wordads_iponweb_bottom_sticky_ad_disable', '__return_true', 10 );

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}

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if ( $this->formats['sidebar_sticky_right']['enabled'] ) {

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// Disable IPW slot.

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add_filter( 'wordads_iponweb_sidebar_sticky_right_ad_disable', '__return_true', 10 );

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}

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}

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/**

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* Inserts JS configuration used by watl.js.

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*

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* @return void

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*/

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public function insert_config() {

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global $post;

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$config = array(

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'post_id' => ( $post instanceof WP_Post ) && is_singular( 'post' ) ? $post->ID : null,

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'origin' => 'jetpack',

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'theme' => get_stylesheet(),

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'target' => $this->target_keywords(),

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) + $this->formats;

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// Do conversion.

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$js_config = WordAds_Array_Utils::array_to_js_object( $config );

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// Output script.

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wp_print_inline_script_tag( "var wa_smart = $js_config; wa_smart.cmd = [];" );

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}

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/**

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* Add the Smart resource hints.

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*

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* @param array $hints Domains for hinting.

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* @param string $relation_type Resource type.

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*

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* @return array Domains for hinting.

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*/

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public function resource_hints( $hints, $relation_type ) {

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if ( 'dns-prefetch' === $relation_type ) {

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$hints[] = '//af.pubmine.com';

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}

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return $hints;

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}

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/**

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* Gets the URL to a JSONP endpoint with configuration data.

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*

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* @return string The URL.

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*/

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private function get_config_url(): string {

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return sprintf(

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'https://public-api.wordpress.com/wpcom/v2/sites/%1$d/adflow/conf/?_jsonp=a8c_adflow_callback',

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$this->params->blog_id

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);

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}

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/**

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* Places marker at the end of the content so inline can identify the post content container.

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*

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* @param string|null $content The post content.

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* @return string|null The post content with the marker appended.

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*/

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public function insert_inline_marker( ?string $content ): ?string {

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if ( null === $content ) {

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return null;

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}

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$inline_ad_marker = '<span id="wordads-inline-marker" style="display: none;"></span>';

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// Append the ad to the post content.

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return $content . $inline_ad_marker;

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}

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/**

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* Gets a formatted list of target keywords.

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*

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* @return string Formatted list of target keywords.

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*/

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private function target_keywords(): string {

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$target_keywords = array_merge(

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$this->get_blog_keywords(),

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$this->get_language_keywords()

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);

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return implode( ';', $target_keywords );

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}

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/**

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* Gets a formatted list of blog keywords.

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*

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* @return array The list of blog keywords.

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*/

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private function get_blog_keywords(): array {

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return array( 'wp_blog_id=' . $this->params->blog_id );

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}

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/**

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* Gets the site language formatted as a keyword.

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*

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* @return array The language as a keyword.

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*/

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private function get_language_keywords(): array {

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return array( 'language=' . explode( '-', get_locale() )[0] );

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}

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/**

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* Enable formats by post types and the display options.

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*

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* @return void

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*/

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private function enable_formats(): void {

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$this->formats['top']['enabled'] = $this->params->options['enable_header_ad'];

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$this->formats['inline']['enabled'] = is_singular( 'post' ) && $this->params->options['wordads_inline_enabled'];

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$this->formats['belowpost']['enabled'] = $this->params->should_show();

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$this->formats['bottom_sticky']['enabled'] = $this->params->options['wordads_bottom_sticky_enabled'];

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$this->formats['sidebar_sticky_right']['enabled'] = $this->params->options['wordads_sidebar_sticky_right_enabled'];

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}

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/**

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* Allow format enabled override from query string, eg. ?inline=true.

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*

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* @return void

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*/

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private function override_formats_from_query_string(): void {

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// phpcs:disable WordPress.Security.NonceVerification.Recommended

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if ( ! isset( $_GET['wordads-logging'] ) ) {

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return;

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}

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foreach ( $this->formats as $format_type => $_ ) {

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// phpcs:disable WordPress.Security.NonceVerification.Recommended

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if ( isset( $_GET[ $format_type ] ) && 'true' === $_GET[ $format_type ] ) {

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$this->formats[ $format_type ]['enabled'] = true;

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}

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}

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}

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/**

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* Check if has any format enabled.

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*

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* @return bool True if enabled, false otherwise.

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*/

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private function has_any_format_enabled(): bool {

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return in_array( true, array_column( $this->formats, 'enabled' ), true );

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}

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}

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