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<?php

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namespace passster;

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use Exception ;

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class PS_Public

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{

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/**

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* Contains instance or null

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* @var object|null

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private static $instance = null ;

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/**

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* Constructor for PS_Public

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public function __construct()

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{

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add_shortcode( 'content_protector', array( $this, 'render_shortcode' ) );

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add_shortcode( 'passster', array( $this, 'render_shortcode' ) );

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add_filter( 'the_content', array( $this, 'filter_the_content' ) );

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add_filter( 'acf_the_content', array( $this, 'filter_the_content' ) );

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add_filter( 'get_the_excerpt', array( $this, 'filter_the_content' ) );

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add_action( 'template_redirect', array( $this, 'check_global_proctection' ) );

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}

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/**

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* Returns instance of PS_Public.

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* @return object

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public static function get_instance()

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{

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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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* Render the Passster shortcode.

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* @param array $atts array of attributes.

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* @param string|null $content the current content.

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* @return string

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public function render_shortcode( array $atts, string $content = null ) : string

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{

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// check if valid before restrict anything.

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$valid = PS_Conditional::is_valid( $atts );

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$options = get_option( 'passster' );

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if ( $valid ) {

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if ( !empty($atts['area']) ) {

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$area_id = esc_html( $atts['area'] );

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$area = get_post( $area_id );

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$content = $area->post_content;

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do_action( 'passster_content_unlocked' );

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return apply_filters( 'the_content', str_replace( '{post-id}', get_the_id(), $content ) );

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} else {

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$content = apply_filters( 'the_content', $content );

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do_action( 'passster_content_unlocked' );

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return apply_filters( 'passster_content', $content );

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}

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}

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// do nothing if no atts.

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if ( empty($atts) ) {

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return $content;

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}

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// Set default form.

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$form = PS_Form::get_password_form();

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// Password.

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if ( !empty($atts['password']) ) {

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$form = PS_Form::get_password_form();

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$form = str_replace( '[PASSSTER_TYPE]', 'password', $form );

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}

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// Area.

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if ( !empty($atts['area']) ) {

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$area_id = esc_html( $atts['area'] );

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$form = str_replace( '[PASSSTER_AREA]', $area_id, $form );

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}

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// Page.

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if ( !empty($atts['protection']) ) {

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$form = str_replace( '[PASSSTER_PROTECTION]', 'full', $form );

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} else {

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if ( !empty($atts['area']) ) {

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$form = str_replace( '[PASSSTER_PROTECTION]', 'area', $form );

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}

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}

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// Redirect.

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if ( !empty($atts['redirect']) ) {

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$form = str_replace( '[PASSSTER_REDIRECT]', esc_url( $atts['redirect'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_REDIRECT]', '', $form );

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}

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// headline.

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if ( !empty($atts['headline']) ) {

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$form = str_replace( '[PASSSTER_FORM_HEADLINE]', esc_html( $atts['headline'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_FORM_HEADLINE]', $options['headline'], $form );

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}

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// instruction.

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if ( !empty($atts['instruction']) ) {

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$form = str_replace( '[PASSSTER_FORM_INSTRUCTIONS]', esc_html( $atts['instruction'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_FORM_INSTRUCTIONS]', $options['instruction'], $form );

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}

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// placeholder.

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if ( !empty($atts['placeholder']) ) {

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$form = str_replace( '[PASSSTER_PLACEHOLDER]', esc_html( $atts['placeholder'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_PLACEHOLDER]', $options['placeholder'], $form );

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}

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// button.

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if ( !empty($atts['button']) ) {

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$form = str_replace( '[PASSSTER_BUTTON_LABEL]', esc_html( $atts['button'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_BUTTON_LABEL]', $options['button_label'], $form );

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}

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// modify id.

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if ( !empty($atts['id']) ) {

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$form = str_replace( '[PASSSTER_ID]', 'ps-' . esc_html( $atts['id'] ), $form );

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} else {

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$form = str_replace( '[PASSSTER_ID]', 'ps-' . wp_rand( 10, 1000 ), $form );

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}

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// hide or not.

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if ( !empty($atts['hide']) ) {

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$form = str_replace( '[PASSSTER_HIDE]', ' passster-hide', $form );

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} else {

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$form = str_replace( '[PASSSTER_HIDE]', '', $form );

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}

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// ACF field.

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if ( !empty($atts['acf']) ) {

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$form = str_replace( '[PASSSTER_ACF]', ' data-acf="' . esc_html( $atts['acf'] ) . '"', $form );

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} else {

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$form = str_replace( '[PASSSTER_ACF]', '', $form );

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}

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return $form;

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}

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/**

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* Filters the_content with Passster.

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* @param string $content given content.

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* @return string

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* @throws Exception

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public function filter_the_content( string $content ) : string

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{

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$post_id = get_the_id();

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$activate_protection = get_post_meta( $post_id, 'passster_activate_protection', true );

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// user restriction.

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$user_restriction_type = get_post_meta( $post_id, 'passster_user_restriction_type', true );

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$user_restriction = get_post_meta( $post_id, 'passster_user_restriction', true );

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// Redirection.

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$redirection = get_post_meta( $post_id, 'passster_redirect_url', true );

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// texts.

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$headline = get_post_meta( $post_id, 'passster_headline', true );

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$instruction = get_post_meta( $post_id, 'passster_instruction', true );

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$placeholder = get_post_meta( $post_id, 'passster_placeholder', true );

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$button = get_post_meta( $post_id, 'passster_button', true );

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$id = get_post_meta( $post_id, 'passster_id', true );

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if ( !$activate_protection ) {

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return $content;

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}

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// build atts array to validate.

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$atts = array();

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$shortcode = '';

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$password = get_post_meta( $post_id, 'passster_password', true );

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$atts['password'] = $password;

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$shortcode = '[passster password="' . $password . '" protection="full" ';

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if ( !empty($redirection) ) {

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$shortcode .= 'redirect="' . $redirection . '" ';

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}

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if ( !empty($headline) ) {

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$shortcode .= 'headline="' . $headline . '" ';

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}

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if ( !empty($instruction) ) {

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$shortcode .= 'instruction="' . $instruction . '" ';

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}

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if ( !empty($placeholder) ) {

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$shortcode .= 'placeholder="' . $placeholder . '" ';

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}

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if ( !empty($button) ) {

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$shortcode .= 'button="' . $button . '" ';

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}

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if ( !empty($id) ) {

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$shortcode .= 'id="' . $id . '" ';

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}

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$shortcode .= ']{content}[/passster]';

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// check if valid before restrict anything.

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$valid = PS_Conditional::is_valid( $atts );

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if ( $valid ) {

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return $content;

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}

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// replace placeholder with content.

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$shortcode = str_replace( '{content}', $content, $shortcode );

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return do_shortcode( $shortcode );

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}

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/**

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* Redirect if global protection is activated and no password is set.

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* @return void

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* @throws Exception

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public function check_global_proctection()

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{

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$options = get_option( 'passster' );

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// Allow Elementor editing the page.

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$elementor_preview = filter_input( INPUT_GET, 'elementor-preview', FILTER_SANITIZE_STRING );

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if ( $elementor_preview ) {

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return;

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}

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// Allow Live Canvas Editor.

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$live_canvas_preview = filter_input( INPUT_GET, 'lc_action_launch_editing', FILTER_SANITIZE_STRING );

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if ( $live_canvas_preview ) {

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return;

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}

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if ( !isset( $options['global_protection_id'] ) ) {

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return;

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}

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if ( !isset( $options['activate_global_protection'] ) ) {

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return;

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}

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// Build $atts array based on protection settings.

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$post_id = esc_html( $options['global_protection_id'] );

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$is_active = esc_html( $options['activate_global_protection'] );

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$atts = array();

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$password = get_post_meta( $post_id, 'passster_password', true );

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$atts['password'] = esc_html( $password );

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if ( !empty($post_id) ) {

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if ( $is_active ) {

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if ( is_page( $post_id ) || is_single( $post_id ) ) {

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return;

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}

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// Check excluded pages.

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if ( isset( $options['exclude_pages'] ) ) {

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foreach ( $options['exclude_pages'] as $excluded_page_id ) {

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if ( is_page( $excluded_page_id ) ) {

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return;

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}

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}

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}

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// Check if cookie is set.

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if ( empty($_COOKIE['passster']) || !PS_Conditional::is_valid( $atts ) ) {

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$global_protection_url = get_permalink( $post_id );

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wp_redirect( esc_url_raw( $global_protection_url ) );

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exit;

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}

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}

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}

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}

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}

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