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<?php

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/**

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* Modules TrafficCop Page Parser.

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* @package AdvancedAds

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* @author Advanced Ads <info@wpadvancedads.com>

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* @since 1.48.0

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namespace AdvancedAds\Modules\OneClick;

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use AdvancedAds\Framework\Interfaces\Integration_Interface;

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defined( 'ABSPATH' ) || exit;

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/**

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* Modules TrafficCop Page Parser.

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* phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase

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class Page_Parser implements Integration_Interface {

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/**

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* Hold page.

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* @var string

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private $page = '';

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/**

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* Get Parser Instance

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* @return Page_Parser

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public static function get_instance() {

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static $instance;

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if ( null === $instance ) {

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$instance = new Page_Parser();

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$instance->hooks();

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}

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return $instance;

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}

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/**

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* Hook into WordPress.

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public function hooks() {

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add_action( 'template_redirect', [ $this, 'start_buffer' ], -9999 );

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add_action( 'wp_footer', [ $this, 'flush_page' ], 9999 );

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}

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/**

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* Get page

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* @return string

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public function get_page() {

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return $this->page;

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}

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/**

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* Start of buffer.

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* @return void

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public function start_buffer() {

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ob_start( [ $this, 'parse' ] );

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}

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/**

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* Parse page for script tag

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* @param string $buffer Page buffer.

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* @return string

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public function parse( $buffer ): string {

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$this->page = $buffer;

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$this->loop_script_tags();

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$this->page = apply_filters( 'pubguru_current_page', $this->page ); // phpcs:ignore

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return $this->page;

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}

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/**

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* Flush page after footer

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* @return void

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public function flush_page() {

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$buffer_status = ob_get_status();

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if (

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! empty( $buffer_status ) &&

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1 === $buffer_status['type'] &&

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get_class( $this ) . '::parse' === $buffer_status['name']

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) {

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ob_end_flush();

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}

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}

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/**

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* Loop through script tags.

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* @return void

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public function loop_script_tags() {

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// Early bail!!

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if ( ! has_filter( 'pubguru_page_script_tag' ) ) {

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return;

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}

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$scripts = $this->get_script_tags();

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foreach ( $scripts as $script ) {

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$find = $script;

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$replace = apply_filters( 'pubguru_page_script_tag', $script );

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if ( false !== $replace ) {

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$this->page = str_replace( $find, $replace, $this->page );

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}

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}

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}

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/**

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* Get script tags only.

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* @return array

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private function get_script_tags() {

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$matches = [];

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preg_match_all( '/<script[\s\S]*?>[\s\S]*?<\/script>/i', $this->page, $matches );

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return isset( $matches[0] ) ? $matches[0] : [];

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}

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}

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