Ticket #15936: 15936.2.diff

src/wp-admin/includes/network.php

@@ -133 +133 @@
 
         $hostname  = get_clean_basedomain();
         $has_ports = strstr( $hostname, ':' );
-        if ( ( false !== $has_ports && ! in_array( $has_ports, array( ':80', ':443' ) ) ) ) {
+
+        /** This filter is documented in wp-includes/ms-settings.php */
+        $allowed_ports = apply_filters( 'allowed_multisite_ports', array( ':80', ':443' ) );
+
+        if ( ( false !== $has_ports && ! in_array( $has_ports, $allowed_ports ) ) ) {
                 echo '<div class="error"><p><strong>' . __( 'ERROR:' ) . '</strong> ' . __( 'You cannot install a network of sites with your server address.' ) . '</p></div>';
                 echo '<p>' . sprintf(
                         /* translators: %s: port number */

src/wp-includes/ms-blogs.php

@@ -902 +902 @@
         // Sanitize domain if passed.
         if ( array_key_exists( 'domain', $data ) ) {
                 $data['domain'] = trim( $data['domain'] );
+                $data['domain'] = preg_replace( '|:\d+$|', '', $data['domain'] );
                 $data['domain'] = preg_replace( '/\s+/', '', sanitize_user( $data['domain'], true ) );
                 if ( is_subdomain_install() ) {
                         $data['domain'] = str_replace( '@', '', $data['domain'] );

src/wp-includes/ms-settings.php

@@ -55 +55 @@
 if ( ! isset( $current_site ) || ! isset( $current_blog ) ) {
 
         $domain = strtolower( stripslashes( $_SERVER['HTTP_HOST'] ) );
-        if ( substr( $domain, -3 ) == ':80' ) {
-                $domain               = substr( $domain, 0, -3 );
-                $_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -3 );
-        } elseif ( substr( $domain, -4 ) == ':443' ) {
-                $domain               = substr( $domain, 0, -4 );
-                $_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -4 );
+
+        /**
+         * Filters allowed HTTP ports in Multisite.
+         *
+         * @since 5.1.0
+         *
+         * @param array $allowed_ports The allowed ports. Default is [ ':80', ':443' ].
+         */
+        $allowed_ports = apply_filters( 'allowed_multisite_ports', array( ':80', ':443' ) );
+
+        foreach ( $allowed_ports as $allowed_port ) {
+                $str_length = strlen( $allowed_port );
+                if ( substr( $domain, -$str_length ) == $allowed_port ) {
+                        $domain               = substr( $domain, 0, -$str_length );
+                        $_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -$str_length);
+                }
         }
 
         $path = stripslashes( $_SERVER['REQUEST_URI'] );