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Current File : //var/www/cwg/wp-content/plugins/wp-maintenance-mode/includes/functions/helpers.php

<?php

/**
 * Helpers
 */

defined( 'ABSPATH' ) || exit;

/**
 * Get plugin info
 *
 * @since 2.0.0
 * @param string $plugin_slug
 * @return array
 */
function wpmm_plugin_info( $plugin_slug ) {
	add_filter( 'extra_plugin_headers', 'wpmm_add_extra_plugin_headers', 99, 1 );

	$plugin_data = get_plugin_data( WPMM_PATH . $plugin_slug . '.php' );

	remove_filter( 'extra_plugin_headers', 'wpmm_add_extra_plugin_headers', 99, 1 );

	return $plugin_data;
}

/**
 * Outputs the html selected attribute
 *
 * @since 2.0.4
 * @param array  $values
 * @param string $current
 * @return string html attribute or empty string
 */
function wpmm_multiselect( $values, $current ) {
	foreach ( $values as $k => $role ) {
		$is_selected = __checked_selected_helper( $role, $current, false, 'selected' );
		if ( ! empty( $is_selected ) ) {
			return $is_selected;
		}
	}
}

/**
 * Return subscribers count
 *
 * @global object $wpdb
 * @return int
 */
function wpmm_get_subscribers_count() {
	global $wpdb;

	$count = $wpdb->get_var( 'SELECT COUNT(id_subscriber) FROM ' . $wpdb->prefix . 'wpmm_subscribers' );

	return intval( $count );
}

/**
 * Return the UTM'ized url
 *
 * @since 2.3.0
 * @param string $url
 * @param array  $utms
 * @return string
 */
function wpmm_get_utmized_url( $url, $utms = array() ) {
	$utms = wp_parse_args(
		$utms,
		array(
			'source'   => null,
			'medium'   => 'wpmaintenance',
			'campaign' => null,
			'term'     => null,
			'content'  => null,
		)
	);

	foreach ( $utms as $key => $value ) {
		if ( empty( $value ) ) {
			unset( $utms[ $key ] );
			continue;
		}

		$utms[ $key ] = sprintf( 'utm_%s=%s', $key, $value );
	}

	if ( empty( $utms ) ) {
		return $url;
	}

	return sprintf( '%s/?%s', untrailingslashit( $url ), implode( '&', $utms ) );
}

/**
 * Return banner url
 *
 * @param string $filename
 * @return string
 */
function wpmm_get_banner_url( $filename ) {
	return sprintf( '%s/assets/images/recommended/%s', untrailingslashit( WPMM_URL ), $filename );
}

/**
 * Return list of banners
 *
 * @since 2.0.4
 * @return array
 */
function wpmm_get_banners() {
	return array(
		array(
			'title' => 'Blocksy',
			'link'  => 'https://creativethemes.com/blocksy/',
			'image' => 'blocksy.jpg',
			'utm'   => true,
		),
		array(
			'title' => 'Postcards',
			'link'  => 'https://designmodo.com/postcards/',
			'image' => 'postcards.jpg',
			'utm'   => true,
		),
		array(
			'title' => 'Static Pages',
			'link'  => 'https://designmodo.com/static-pages/',
			'image' => 'static-pages.png',
			'utm'   => true,
		),
	);
}

/**
 * Get list of available backgrounds
 *
 * @since 2.3.0
 * @return array
 */
function wpmm_get_backgrounds() {
	$backgrounds = array();

	foreach ( glob( WPMM_PATH . 'assets/images/backgrounds/*_thumb.jpg' ) as $file ) {
		$backgrounds[] = array(
			'big'   => str_replace( '_thumb', '', basename( $file ) ),
			'small' => basename( $file ),
		);
	}

	return $backgrounds;
}

/**
 * Get list of user roles
 *
 * @since 2.3.0
 * @global object $wp_roles
 * @return array
 */
function wpmm_get_user_roles() {
	global $wp_roles;

	$roles = array();

	foreach ( $wp_roles->roles as $role => $details ) {
		if ( $role === 'administrator' ) {
			continue;
		}

		$roles[ $role ] = $details['name'];
	}

	return $roles;
}

/**
 * Return capability
 *
 * @since 2.3.0
 * @param string $action
 * @return string
 */
function wpmm_get_capability( $action ) {
	if ( has_filter( 'wpmm_all_actions_capability' ) ) {
		return apply_filters( 'wpmm_all_actions_capability', 'manage_options' );
	}

	return apply_filters( sprintf( 'wpmm_%s_capability', $action ), 'manage_options' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
}

/**
 * Get template path
 *
 * @since 2.4.0
 * @param string  $template_name
 * @param boolean $overrideable
 * @return string
 */
function wpmm_get_template_path( $template_name, $overrideable = false ) {
	$file_path = WPMM_VIEWS_PATH . $template_name;

	if ( $overrideable === false ) {
		return $file_path;
	}

	/**
	 * Continue to check if the template is overridden...
	 */
	$files_list = array(
		get_stylesheet_directory() . '/wp-maintenance-mode/' . $template_name, // check child theme
		get_template_directory() . '/wp-maintenance-mode/' . $template_name, // check theme
	);

	// maintain backward compatibility
	if ( $template_name === 'maintenance.php' ) {
		$files_list = array_merge(
			$files_list,
			array(
				get_stylesheet_directory() . '/wp-maintenance-mode.php', // check child theme
				get_template_directory() . '/wp-maintenance-mode.php', // check theme
				WP_CONTENT_DIR . '/wp-maintenance-mode.php', // check `wp-content`
			)
		);
	}

	// we need just unique values because get_stylesheet_directory() === get_template_directory() if you don't use a child theme
	foreach ( array_unique( $files_list ) as $file ) {
		if ( file_exists( $file ) ) {
			$file_path = $file;
			break;
		}
	}

	/**
	 * Possible filters:
	 * - wpmm_maintenance_template
	 * - wpmm_contact_template
	 */
	return apply_filters( sprintf( 'wpmm_%s_template', basename( $template_name, '.php' ) ), $file_path ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
}

/**
 * Returns the value of the option after `stripslashes_deep` is applied
 *
 * @since 2.4.0
 * @param string $option
 * @param mixed  $default
 * @return mixed
 */
function wpmm_get_option( $option, $default = false ) {
	return stripslashes_deep( get_option( $option, $default ) );
}

/**
 * Sanitize Google Analytics SiteID code
 *
 * Valid examples:
 * UA-..........
 * UA-..........-....
 * G-..........
 *
 * @since 2.0.7
 * @param string $string
 * @return string
 */
function wpmm_sanitize_ga_code( $string ) {
	preg_match( '/(UA-\d{4,10}(-\d{1,4})?|G-\w+)/', $string, $matches );

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

/**
 * Generate form hidden fields
 *
 * @since 2.4.0
 * @param string $name
 */
function wpmm_form_hidden_fields( $name ) {
	$hidden_fields = array(
		array(
			'name' => sprintf( 'tab-%s', $name ),
			'type' => 'nonce',
		),
		array(
			'name'  => 'tab',
			'value' => $name,
			'type'  => 'custom',
		),
		array(
			'name'  => 'action',
			'value' => 'wpmm_save_settings',
			'type'  => 'custom',
		),
	);

	foreach ( $hidden_fields as $field ) {
		switch ( $field['type'] ) {
			case 'custom':
				printf( '<input type="hidden" value="%s" name="%s" />', esc_attr( $field['value'] ), esc_attr( $field['name'] ) );
				break;
			case 'nonce':
				wp_nonce_field( $field['name'] );
				break;
		}
	}
}

/**
 * Run shortcodes
 *
 * @since 2.4.0
 * @global object $post
 * @param string $content
 * @return string
 */
function wpmm_do_shortcode( $content ) {
	global $post;

	// register and run [embed] shortcode
	if ( isset( $GLOBALS['wp_embed'] ) && is_callable( array( $GLOBALS['wp_embed'], 'run_shortcode' ) ) ) {
		// $post should be null. this way, the cache will be saved separately, not as a post_meta of the current post
		$post = null; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited

		$content = $GLOBALS['wp_embed']->run_shortcode( $content );
	}

	return do_shortcode( $content );
}

/**
 * Return allowed HTML tags for GDPR module textareas
 *
 * @since 2.2.2
 * @return array
 */
function wpmm_gdpr_textarea_allowed_html() {
	$allowed_html = array(
		'a'      => array(
			'href'   => array(),
			'title'  => array(),
			'class'  => array(),
			'rel'    => array(),
			'target' => array(),
		),
		'strong' => array(),
		'em'     => array(),
		'p'      => array(),
	);

	return apply_filters( 'wpmm_gdpr_textarea_allowed_html', $allowed_html );
}

/**
 * Return allowed HTML tags for translated strings
 *
 * @since 2.4.0
 * @return array
 */
function wpmm_translated_string_allowed_html() {
	$allowed_html = array(
		'a'      => array(
			'href'   => array(),
			'title'  => array(),
			'class'  => array(),
			'rel'    => array(),
			'target' => array(),
		),
		'strong' => array(),
		'button' => array(),
		'code'   => array(),
	);

	return apply_filters( 'wpmm_translated_string_allowed_html', $allowed_html );
}

/**
 * Define a constant if it is not already defined
 * (inspired by WooCommerce)
 *
 * @since 2.4.0
 * @param string $name
 * @param mixed  $value
 */
function wpmm_maybe_define_constant( $name, $value ) {
	if ( ! defined( $name ) ) {
		define( $name, $value );
	}
}

/**
 * Set nocache constants
 *
 * @since 2.4.0
 */
function wpmm_set_nocache_constants() {
	wpmm_maybe_define_constant( 'DONOTCACHEPAGE', true );
	wpmm_maybe_define_constant( 'DONOTCACHEOBJECT', true );
	wpmm_maybe_define_constant( 'DONOTCACHEDB', true );
	wpmm_maybe_define_constant( 'DONOTMINIFY', true );
	wpmm_maybe_define_constant( 'DONOTCDN', true );
}

/**
 * Delete object cache & page cache (if the cache plugin is supported)
 *
 * @since 2.4.0
 */
function wpmm_delete_cache() {
	// Object cache (WordPress built-in)
	if ( function_exists( 'wp_cache_flush' ) ) {
		wp_cache_flush();
	}

	// Super Cache Plugin - https://wordpress.org/plugins/wp-super-cache/
	if ( function_exists( 'wp_cache_clear_cache' ) ) {
		$plugin_basename = plugin_basename( WPMM_PATH . 'wp-maintenance-mode.php' );

		wp_cache_clear_cache( is_multisite() && is_plugin_active_for_network( $plugin_basename ) ? get_current_blog_id() : 0 );
	}

	// W3 Total Cache Plugin - https://wordpress.org/plugins/w3-total-cache/
	if ( function_exists( 'w3tc_flush_all' ) ) {
		w3tc_flush_all();
	}

	// WP Rocket Plugin - https://wp-rocket.me/
	if ( function_exists( 'rocket_clean_domain' ) ) {
		rocket_clean_domain();
	}

	// WP Fastest Cache Plugin - https://wordpress.org/plugins/wp-fastest-cache/
	if ( isset( $GLOBALS['wp_fastest_cache'] ) && method_exists( $GLOBALS['wp_fastest_cache'], 'deleteCache' ) ) {
		$GLOBALS['wp_fastest_cache']->deleteCache( true );
	}

	// Endurance Page Cache Plugin - https://github.com/bluehost/endurance-page-cache
	if ( class_exists( 'Endurance_Page_Cache' ) && method_exists( 'Endurance_Page_Cache', 'purge_all' ) ) {
		$epc = new Endurance_Page_Cache();
		$epc->purge_all();
	}

	// Swift Performance Lite Plugin - https://wordpress.org/plugins/swift-performance-lite/
	if ( class_exists( 'Swift_Performance_Cache' ) && method_exists( 'Swift_Performance_Cache', 'clear_all_cache' ) ) {
		Swift_Performance_Cache::clear_all_cache();
	}

	// Cache Enabler Plugin - https://wordpress.org/plugins/cache-enabler/
	if ( class_exists( 'Cache_Enabler' ) && method_exists( 'Cache_Enabler', 'clear_site_cache' ) ) {
		Cache_Enabler::clear_site_cache();
	}

	// SG Optimizer Plugin - https://wordpress.org/plugins/sg-cachepress/
	if ( class_exists( '\\SiteGround_Optimizer\\Supercacher\\Supercacher' ) && method_exists( '\\SiteGround_Optimizer\\Supercacher\\Supercacher', 'purge_cache' ) ) {
		\SiteGround_Optimizer\Supercacher\Supercacher::purge_cache();
	}

	// LiteSpeed Cache Plugin - https://wordpress.org/plugins/litespeed-cache/
	if ( class_exists( '\\LiteSpeed\\Purge' ) && method_exists( '\\LiteSpeed\\Purge', 'purge_all' ) ) {
		\LiteSpeed\Purge::purge_all( 'Purged by WP Maintenance Mode' );
	}

	// Nginx Helper Plugin - https://wordpress.org/plugins/nginx-helper/
	global $nginx_purger;

	if ( is_a( $nginx_purger, 'Purger' ) && method_exists( $nginx_purger, 'purge_all' ) ) {
		$nginx_purger->purge_all();
	}

	// Feel free to use it if you have a custom cache mechanism
	do_action( 'wpmm_delete_cache' );
}

if ( ! function_exists( 'wp_scripts' ) ) {

	/**
	 * Initialize $wp_scripts if it has not been set.
	 *
	 * (to maintain backward compatibility for those with WP < 4.2.0)
	 *
	 * @since 2.0.8
	 * @global WP_Scripts $wp_scripts
	 * @return WP_Scripts instance
	 */
	function wp_scripts() {
		global $wp_scripts;

		if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
			$wp_scripts = new WP_Scripts(); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
		}

		return $wp_scripts;
	}
}

if ( ! function_exists( 'sanitize_hex_color' ) ) {

	/**
	 * Sanitizes a hex color.
	 *
	 * (to maintain backward compatibility for those with WP < 4.6.0)
	 *
	 * @since 2.4.0
	 * @param string $color
	 * @return string|void
	 */
	function sanitize_hex_color( $color ) {
		if ( '' === $color ) {
			return '';
		}

		// 3 or 6 hex digits, or the empty string.
		if ( preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
			return $color;
		}
	}
}

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