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185 lines
3.9 KiB
PHP
185 lines
3.9 KiB
PHP
<?php
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/**
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* The URL helpers.
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*
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* @since 1.0.0
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* @package RankMath
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* @subpackage RankMath\Helpers
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* @author RankMath <support@rankmath.com>
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*/
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namespace RankMath\Helpers;
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use RankMath\Helpers\Str;
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use RankMath\Helpers\Param;
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/**
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* Url class.
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*/
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class Url {
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/**
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* Simple check for validating a URL, it must start with http:// or https://.
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* and pass FILTER_VALIDATE_URL validation.
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*
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* @param string $url to check.
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*
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* @return bool
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*/
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public static function is_url( $url ) {
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if ( ! is_string( $url ) ) {
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return false;
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}
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// Must start with http:// or https://.
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if ( 0 !== strpos( $url, 'http://' ) && 0 !== strpos( $url, 'https://' ) && 0 !== strpos( $url, '//' ) ) {
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return false;
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}
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// Check for scheme first, if it's missing then add it.
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if ( 0 === strpos( $url, '//' ) ) {
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$url = 'http:' . $url;
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}
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// Must pass validation.
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return false !== filter_var( trailingslashit( $url ), FILTER_VALIDATE_URL ) ? true : false;
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}
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/**
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* Check whether a url is relative.
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*
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* @param string $url URL string to check.
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*
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* @return bool
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*/
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public static function is_relative( $url ) {
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return ( 0 !== strpos( $url, 'http' ) && 0 !== strpos( $url, '//' ) );
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}
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/**
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* Checks whether a url is external.
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*
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* @param string $url URL string to check. This should be a absolute URL.
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* @param string $domain If wants to use some other domain not home_url().
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*
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* @return bool
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*/
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public static function is_external( $url, $domain = false ) {
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if ( empty( $url ) || '#' === $url[0] ) { // Link to current page.
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return false;
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}
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if ( self::is_affiliate( $url ) ) {
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return true;
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}
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if ( '/' === $url[0] ) { // Link to current page or relative link.
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return false;
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}
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$domain = self::get_domain( $domain ? $domain : home_url() );
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if ( Str::contains( $domain, $url ) ) {
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return false;
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}
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return true;
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}
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/**
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* Checks whether a link is an affiliate link.
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*
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* @param string $url URL string to check. This should be a absolute URL.
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*
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* @return bool
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*/
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public static function is_affiliate( $url ) {
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if ( empty( $url ) ) {
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return false;
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}
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/**
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* Filter: 'wp_helpers_is_affiliate_link' - Allows developer to consider a link as affiliate.
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*
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* @param bool $value Default false.
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* @param string $url URL.
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*/
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return apply_filters( 'wp_helpers_is_affiliate_link', false, $url );
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}
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/**
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* Get current url.
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*
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* @codeCoverageIgnore
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*
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* @return string
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*/
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public static function get_current_url() {
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return self::get_scheme() . '://' . self::get_host() . self::get_port() . Param::server( 'REQUEST_URI' );
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}
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/**
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* Get url scheme.
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*
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* @return string
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*/
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public static function get_scheme() {
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return is_ssl() ? 'https' : 'http';
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}
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/**
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* Some setups like HTTP_HOST, some like SERVER_NAME, it's complicated.
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*
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* @link http://stackoverflow.com/questions/2297403/http-host-vs-server-name
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*
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* @codeCoverageIgnore
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*
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* @return string the HTTP_HOST or SERVER_NAME
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*/
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public static function get_host() {
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$host = Param::server( 'HTTP_HOST' );
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if ( false !== $host ) {
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return $host;
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}
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$name = Param::server( 'SERVER_NAME' );
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if ( false !== $name ) {
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return $name;
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}
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return '';
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}
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/**
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* Get current request port.
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*
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* @return string
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*/
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public static function get_port() {
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$port = Param::server( 'SERVER_PORT' );
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$has_port = $port && ! in_array( $port, [ '80', '443' ], true );
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return $has_port ? ':' . $port : '';
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}
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/**
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* Get parent domain
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*
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* @param string $url Url to parse.
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*
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* @return string
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*/
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public static function get_domain( $url ) {
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$pieces = wp_parse_url( $url );
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$domain = isset( $pieces['host'] ) ? $pieces['host'] : '';
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if ( Str::contains( 'localhost', $domain ) ) {
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return 'localhost';
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}
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if ( preg_match( '/(?P<domain>[a-zÀ-ž0-9][a-zÀ-ž0-9\-]{1,63}\.[a-zÀ-ž\.]{2,15})$/ui', $domain, $regs ) ) {
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return $regs['domain'];
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}
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return false;
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}
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}
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