<?php

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/**

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* Themify Maintenance Mode

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*

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* @package Themify

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*/

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class Themify_Maintenance_Mode {

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public static function init() {

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if ( is_admin() ) {

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add_action( 'wp_ajax_themify_load_maintenance_pages', [ __CLASS__, 'wp_ajax_themify_load_maintenance_pages' ] );

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}

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if ( self::is_enabled() ) {

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if ( ! is_admin() ) {

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/* Priority = 11 that is *after* WP default filter `redirect_canonical` in order to avoid redirection loop. */

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add_action( 'template_redirect', [ __CLASS__, 'template_redirect' ], 11 );

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}

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if ( current_user_can( 'manage_options' ) ) {

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if ( isset( $_GET['tf_disable_maintenance'], $_GET['_wpnonce'] ) && wp_verify_nonce( $_GET['_wpnonce'], 'tf_disable_maintenance' ) ) {

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self::disable();

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} else {

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add_action( 'admin_bar_menu', [ __CLASS__, 'admin_bar_menu' ], 500 );

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}

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}

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}

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}

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public static function template_redirect() {

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$enabled = self::is_enabled();

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if ( ! $enabled ) {

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return;

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}

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$user = wp_get_current_user();

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$can_view = false;

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foreach ( $user->roles as $role ) {

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if ( $role === 'administrator' || themify_builder_get( 'setting-maintenance_access_' . $role, 'maintenance_access_' . $role ) ) {

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$can_view = true;

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break;

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}

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}

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if ( ! $can_view ) {

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if ( 'on' === $enabled ) {

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$selected_value = themify_builder_get( 'setting-page_builder_maintenance_page', 'tools_maintenance_page' );

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$selected_page = empty( $selected_value ) ? '' : get_page_by_path($selected_value, OBJECT, 'page');

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if ( ! empty( $selected_page ) && ! is_page( $selected_value ) ) {

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exit( wp_redirect( get_page_link( $selected_page->ID ) ) );

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}

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} elseif ( 'message' === $enabled ) {

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$message = themify_builder_get( 'setting-maintenance_message', 'tools_maintenance_message' );

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wp_die( $message );

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}

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}

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}

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public static function admin_bar_menu( $admin_bar ) {

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$admin_bar->add_menu( [

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'id' => 'tf_maintenance_mode',

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'title' => '<span class="tf_admin_bar_tooltip">' . __( 'Warning: Maintenance Mode is enabled, website is disabled for public visitors. Be sure to deactivate this once your website is ready.', 'themify' ) . '</span>' . __( 'Maintenance Mode', 'themify' ),

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'meta' => [

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'class' => 'tf_admin_bar_alert',

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],

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] );

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$admin_bar->add_menu( [

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'id' => 'tf_maintenance_mode_disable',

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'title' => __( 'Disable Maintenance Mode', 'themify' ),

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'href' => add_query_arg( [

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'tf_disable_maintenance' => 1,

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'_wpnonce' => wp_create_nonce( 'tf_disable_maintenance' ),

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] ),

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'parent' => 'tf_maintenance_mode',

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] );

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}

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/**

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* Load pages for maintenance page dropdown

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*/

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public static function wp_ajax_themify_load_maintenance_pages() {

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check_ajax_referer( 'tf_nonce', 'nonce' );

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if ( ! current_user_can( 'manage_options' ) ) {

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die;

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}

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$pages = get_pages();

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$selected = themify_builder_get( 'setting-page_builder_maintenance_page', 'tools_maintenance_page' );

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$output = '<option></option>';

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foreach ( $pages as $page ) {

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$val = $page->post_name;

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$post_parent = $page->post_parent;

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while ( $post_parent !== 0 ) {

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$post_aux = get_post( $post_parent );

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$val = $post_aux->post_name.'/'.$val;

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$post_parent = $post_aux->post_parent;

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}

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$output .= sprintf( '<option value="%s"%s>%s</option>',

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$val,

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selected( $val, $selected,false ),

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$page->post_title

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);

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}

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echo $output;

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wp_die();

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}

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/**

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* Returns true if maintenance mode is enabled

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*

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* @return string|false

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*/

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public static function is_enabled() {

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static $is = null;

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if ( $is === null ) {

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$is = themify_builder_get( 'setting-page_builder_maintenance_mode', 'tools_maintenance_mode' );

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if ( ! in_array( $is, [ 'on', 'message' ], true ) ) {

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$is = false;

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}

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}

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return $is;

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}

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/**

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* Disable the Maintenance mode

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*/

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public static function disable() {

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if ( themify_is_themify_theme() ) {

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$data = themify_get_data();

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unset( $data['setting-page_builder_maintenance_mode'] );

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themify_set_data( $data );

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}

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else {

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$data = get_option( 'themify_builder_setting', [] );

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if(empty($data)){

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$data=[];

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}

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unset( $data['tools_maintenance_mode'] );

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update_option( 'themify_builder_setting', $data );

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}

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}

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}

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add_action( 'init', [ 'Themify_Maintenance_Mode', 'init' ] );

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