reverting Helper.urls2links() method to old style, applied to element instead of string, allows inserting plain text as text node

js/privatebin.js

@@ -281,7 +281,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
         };
 
         /**
-         * convert URLs to clickable links.
+         * convert URLs to clickable links in the provided element.
          *
          * URLs to handle:
          * <pre>
@@ -292,14 +292,15 @@ jQuery.PrivateBin = (function($, RawDeflate) {
          *
          * @name   Helper.urls2links
          * @function
-         * @param  {string} html
-         * @return {string}
+         * @param  {HTMLElement} element
          */
-        me.urls2links = function(html)
+        me.urls2links = function(element)
         {
-            return html.replace(
-                /(((https?|ftp):\/\/[\w?!=&.\/-;#@~%+*-]+(?![\w\s?!&.\/;#~%"=-]*>))|((magnet):[\w?=&.\/-;#@~%+*-]+))/ig,
-                '<a href="$1" rel="nofollow">$1</a>'
+            element.html(
+                element.html().replace(
+                    /(((https?|ftp):\/\/[\w?!=&.\/-;#@~%+*-]+(?![\w\s?!&.\/;#~%"=-]*>))|((magnet):[\w?=&.\/-;#@~%+*-]+))/ig,
+                    '<a href="$1" rel="nofollow">$1</a>'
+                )
             );
         };
 
@@ -2439,11 +2440,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
                 // add table classes from bootstrap css
                 $plainText.find('table').addClass('table-condensed table-bordered');
             } else {
-                // escape HTML entities, link URLs, sanitize
-                const escapedLinkedText = Helper.urls2links(text);
-                let sanitizeLinkedText = '',
-                    sanitizerConfiguration = {};
-
                 if (format === 'syntaxhighlighting') {
                     // yes, this is really needed to initialize the environment
                     if (typeof prettyPrint === 'function')
@@ -2451,22 +2447,16 @@ jQuery.PrivateBin = (function($, RawDeflate) {
                         prettyPrint();
                     }
 
-                    sanitizeLinkedText = prettyPrintOne(
-                        escapedLinkedText, null, true
+                    $prettyPrint.html(
+                        prettyPrintOne(
+                            Helper.htmlEntities(text), null, true
+                        )
                     );
                 } else {
                     // = 'plaintext'
-                    sanitizeLinkedText = escapedLinkedText;
-                    sanitizerConfiguration = {
-                        ALLOWED_TAGS: ['a'],
-                        ALLOWED_ATTR: ['href', 'rel']
-                    };
+                    $prettyPrint.text(text);
                 }
-                $prettyPrint.html(
-                    DOMPurify.sanitize(
-                        sanitizeLinkedText, sanitizerConfiguration
-                    )
-                );
+                Helper.urls2links($prettyPrint);
                 $prettyPrint.css('white-space', 'pre-wrap');
                 $prettyPrint.css('word-break', 'normal');
                 $prettyPrint.removeClass('prettyprint');
@@ -3243,14 +3233,8 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             const $commentEntryData = $commentEntry.find('div.commentdata');
 
             // set & parse text
-            $commentEntryData.html(
-                DOMPurify.sanitize(
-                    Helper.urls2links(commentText), {
-                        ALLOWED_TAGS: ['a'],
-                        ALLOWED_ATTR: ['href', 'rel']
-                    }
-                )
-            );
+            $commentEntryData.text(commentText);
+            Helper.urls2links($commentEntryData);
 
             // set nickname
             if (nickname.length > 0) {

js/test/Helper.js

@@ -81,7 +81,15 @@ describe('Helper', function () {
             'ignores non-URL content',
             'string',
             function (content) {
-                return content === $.PrivateBin.Helper.urls2links(content);
+                content = content.replace("\r", "\n").replace("\u0000", '');
+                let clean = jsdom();
+                $('body').html('<div id="foo"></div>');
+                let e = $('#foo');
+                e.text(content);
+                $.PrivateBin.Helper.urls2links(e);
+                let result = e.text();
+                clean();
+                return content === result;
             }
         );
         jsc.property(
@@ -95,9 +103,12 @@ describe('Helper', function () {
             function (prefix, schema, address, query, fragment, postfix) {
                 query    = query.join('');
                 fragment = fragment.join('');
-                prefix   = $.PrivateBin.Helper.htmlEntities(prefix);
-                postfix  = ' ' + $.PrivateBin.Helper.htmlEntities(postfix);
-                let url  = schema + '://' + address.join('') + '/?' + query + '#' + fragment;
+                prefix = prefix.replace("\r", "\n").replace("\u0000", '');
+                postfix  = ' ' + postfix.replace("\r", "\n").replace("\u0000", '');
+                let url  = schema + '://' + address.join('') + '/?' + query + '#' + fragment,
+                    clean = jsdom();
+                $('body').html('<div id="foo"></div>');
+                let e = $('#foo');
 
                 // special cases: When the query string and fragment imply the beginning of an HTML entity, eg. &#0 or &#x
                 if (
@@ -108,8 +119,12 @@ describe('Helper', function () {
                     url = schema + '://' + address.join('') + '/?' + query.substring(0, query.length - 1);
                     postfix = '';
                 }
-
-                return prefix + '<a href="' + url + '" rel="nofollow">' + url + '</a>' + postfix === $.PrivateBin.Helper.urls2links(prefix + url + postfix);
+                e.text(prefix + url + postfix);
+                $.PrivateBin.Helper.urls2links(e);
+                let result = e.html();
+                clean();
+                url = $('<div />').text(url).html();
+                return $('<div />').text(prefix).html() + '<a href="' + url + '" rel="nofollow">' + url + '</a>' + $('<div />').text(postfix).html() === result;
             }
         );
         jsc.property(
@@ -118,10 +133,18 @@ describe('Helper', function () {
             jsc.array(common.jscQueryString()),
             'string',
             function (prefix, query, postfix) {
-                prefix   = $.PrivateBin.Helper.htmlEntities(prefix);
-                postfix  = $.PrivateBin.Helper.htmlEntities(postfix);
-                let url  = 'magnet:?' + query.join('').replace(/^&+|&+$/gm,'');
-                return prefix + '<a href="' + url + '" rel="nofollow">' + url + '</a> ' + postfix === $.PrivateBin.Helper.urls2links(prefix + url + ' ' + postfix);
+                prefix = prefix.replace("\r", "\n").replace("\u0000", '');
+                postfix = ' ' + postfix.replace("\r", "\n").replace("\u0000", '');
+                let url  = 'magnet:?' + query.join('').replace(/^&+|&+$/gm,''),
+                    clean = jsdom();
+                $('body').html('<div id="foo"></div>');
+                let e = $('#foo');
+                e.text(prefix + url + postfix);
+                $.PrivateBin.Helper.urls2links(e);
+                let result = e.html();
+                clean();
+                url = $('<div />').text(url).html();
+                return $('<div />').text(prefix).html() + '<a href="' + url + '" rel="nofollow">' + url + '</a>' + $('<div />').text(postfix).html() === result;
             }
         );
     });

tpl/bootstrap.php

@@ -72,7 +72,7 @@ endif;
 ?>
 		<script type="text/javascript" data-cfasync="false" src="js/purify-2.0.8.js" integrity="sha512-QwcEKGuEmKtMguCO9pqNtUtZqq9b/tJ8gNr5qhY8hykq3zKTlDOvpZAmf6Rs8yH35Bz1ZdctUjj2qEWxT5aXCg==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
-		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-YrCefSac8MOPuEvP3IJTSt6svl0P34qwnFy6czhtOJ6yN6ykmmrFdXKWMmD/gyp+hBnFdQnkC7o3GtrjuZkZgA==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-JDQ0DFju78H5r/ZGC1n54tXnkhfijFRXxOvyWPZUTKlWKF2b1GVoPaS3eckgNcpb3MGvcYiMlhcg3xZNeyWtLQ==" crossorigin="anonymous"></script>
 		<link rel="apple-touch-icon" href="img/apple-touch-icon.png?<?php echo rawurlencode($VERSION); ?>" sizes="180x180" />
 		<link rel="icon" type="image/png" href="img/favicon-32x32.png?<?php echo rawurlencode($VERSION); ?>" sizes="32x32" />
 		<link rel="icon" type="image/png" href="img/favicon-16x16.png?<?php echo rawurlencode($VERSION); ?>" sizes="16x16" />

tpl/page.php

@@ -50,7 +50,7 @@ endif;
 ?>
 		<script type="text/javascript" data-cfasync="false" src="js/purify-2.0.8.js" integrity="sha512-QwcEKGuEmKtMguCO9pqNtUtZqq9b/tJ8gNr5qhY8hykq3zKTlDOvpZAmf6Rs8yH35Bz1ZdctUjj2qEWxT5aXCg==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
-		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-YrCefSac8MOPuEvP3IJTSt6svl0P34qwnFy6czhtOJ6yN6ykmmrFdXKWMmD/gyp+hBnFdQnkC7o3GtrjuZkZgA==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-JDQ0DFju78H5r/ZGC1n54tXnkhfijFRXxOvyWPZUTKlWKF2b1GVoPaS3eckgNcpb3MGvcYiMlhcg3xZNeyWtLQ==" crossorigin="anonymous"></script>
 		<link rel="apple-touch-icon" href="img/apple-touch-icon.png?<?php echo rawurlencode($VERSION); ?>" sizes="180x180" />
 		<link rel="icon" type="image/png" href="img/favicon-32x32.png?<?php echo rawurlencode($VERSION); ?>" sizes="32x32" />
 		<link rel="icon" type="image/png" href="img/favicon-16x16.png?<?php echo rawurlencode($VERSION); ?>" sizes="16x16" />