TinyMCE, inline link:

- Remove proxying through WordPress to test if an URL exists.
- Fix and enhance the regex that tests if the URL is well formed.

Fixes #36638.
Built from https://develop.svn.wordpress.org/trunk@38159


git-svn-id: http://core.svn.wordpress.org/trunk@38100 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/tinymce/plugins/wplink/plugin.js

@@ -93,8 +93,9 @@
 		var doingUndoRedo;
 		var doingUndoRedoTimer;
 		var $ = window.jQuery;
-		var urlErrors = {};
 		var emailRegex = /^(mailto:)?[a-z0-9._%+-]+@[a-z0-9][a-z0-9.-]*\.[a-z]{2,63}$/i;
+		var urlRegex1 = /^https?:\/\/([^\s/?.#-][^\s\/?.#]*\.?)+(\/[^\s"]*)?$/i;
+		var urlRegex2 = /^https?:\/\/[^\/]+\.[^\/]+($|\/)/i;
 		var speak = ( typeof window.wp !== 'undefined' && window.wp.a11y && window.wp.a11y.speak ) ? window.wp.a11y.speak : function() {};
 		var hasLinkError = false;
 
@@ -150,16 +151,6 @@
 			});
 		}
 
-		function setLinkError( $link ) {
-			hasLinkError = true;
-			$link.attr( 'data-wplink-url-error', 'true' );
-			speak( editor.translate( 'Warning: the link has been inserted but the destination cannot be reached.' ), 'assertive' );
-
-			if ( toolbar && toolbar.visible() ) {
-				toolbar.$el.find( '.wp-link-preview a' ).addClass( 'wplink-url-error' );
-			}
-		}
-
 		function checkLink( node ) {
 			var $link = editor.$( node );
 			var href = $link.attr( 'href' );
@@ -170,34 +161,13 @@
 
 			hasLinkError = false;
 
-			if ( /^http/i.test( href ) && ! /^https?:\/\/[a-z0-9][a-z0-9.-]*\.[a-z]{2,63}(\/|$)/i.test( href ) ) {
-				urlErrors[href] = true;
-			}
-
-			if ( urlErrors.hasOwnProperty( href ) ) {
-				setLinkError( $link );
-				return;
+			if ( /^http/i.test( href ) && ( ! urlRegex1.test( href ) || ! urlRegex2.test( href ) ) ) {
+				hasLinkError = true;
+				$link.attr( 'data-wplink-url-error', 'true' );
+				speak( editor.translate( 'Warning: the link has been inserted but may have errors. Please test it.' ), 'assertive' );
 			} else {
 				$link.removeAttr( 'data-wplink-url-error' );
 			}
-
-			$.post(
-				window.ajaxurl, {
-					action: 'test_url',
-					nonce: $( '#_wplink_urltest_nonce' ).val(),
-					href: href
-				},
-				'json'
-			).done( function( response ) {
-				if ( response.success ) {
-					return;
-				}
-
-				if ( response.data && response.data.httpError ) {
-					urlErrors[href] = true;
-					setLinkError( $link );
-				}
-			});
 		}
 
 		editor.on( 'preinit', function() {