piotr-cz · December 19, 2015 07:09 · Jul 3, 2013 · Jul 3, 2013 · Jul 3, 2013
diff --git a/JHtmlEmail b/JHtmlEmail
@@ -83,7 +83,7 @@ abstract class JHtmlEmail
 				if ($email)
 				{
 					// Convert text
-					$text = self::_convertEncoding($text);
+					$text = self::convertEncoding($text);
 
 					// Split email by @ symbol
 					$text = explode('@', $text);

diff --git a/JHtmlEmail b/JHtmlEmail
@@ -34,6 +34,8 @@ abstract class JHtmlEmail
 	 */
 	public static function cloak($mail, $mailto = true, $text = '', $email = true, $placeholder_char = 'x')
 	{
+		$placeholder = str_repeat($placeholder_char, strlen($mail));
+
 		// Convert text
 		$mail = self::convertEncoding($mail);
 
@@ -48,7 +50,6 @@ abstract class JHtmlEmail
 		$document = JFactory::getDocument();
 		$isXHTML = ($document->getMimeEncoding() != 'text/html'); // application/xhtml+xml
 		$isHTML5 = ($document->isHTML5());
-		$isXHTML = false;
 
 		// XHTML compliance no Javascript text handling
 		$replacement = "\n<noscript " . ($isXHTML ? "id=\"noscript{$rand}\" " : '' ) . "title=\"" . JText::_('JLIB_HTML_CLOAKING') . "\">";

diff --git a/JHtmlEmail b/JHtmlEmail
@@ -0,0 +1,164 @@
+<?php
+/**
+ * @package     Joomla.Libraries
+ * @subpackage  HTML
+ *
+ * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE
+ */
+
+defined('JPATH_PLATFORM') or die;
+
+/**
+ * Utility class for cloaking email addresses
+ *
+ * @package     Joomla.Libraries
+ * @subpackage  HTML
+ * @since       1.5
+ */
+abstract class JHtmlEmail
+{
+	/**
+	 * Simple JavaScript email cloaker
+	 *
+	 * By default replaces an email with a mailto link with email cloaked
+	 *
+	 * @param   string   $mail    The -mail address to cloak.
+	 * @param   boolean  $mailto  True if text and mailing address differ
+	 * @param   string   $text    Text for the link
+	 * @param   boolean  $email   True if text is an e-mail address
+	 *
+	 * @return  string  The cloaked email.
+	 *
+	 * @since   1.5
+	 */
+	public static function cloak($mail, $mailto = true, $text = '', $email = true, $placeholder_char = 'x')
+	{
+		// Convert text
+		$mail = self::convertEncoding($mail);
+
+		// Split email by @ symbol
+		$mail = explode('@', $mail);
+		$mail_parts = explode('.', $mail[1]);
+
+		// Random number
+		$rand = rand(1, 100000);
+
+		// Get document information
+		$document = JFactory::getDocument();
+		$isXHTML = ($document->getMimeEncoding() != 'text/html'); // application/xhtml+xml
+		$isHTML5 = ($document->isHTML5());
+		$isXHTML = false;
+
+		// XHTML compliance no Javascript text handling
+		$replacement = "\n<noscript " . ($isXHTML ? "id=\"noscript{$rand}\" " : '' ) . "title=\"" . JText::_('JLIB_HTML_CLOAKING') . "\">";
+		$replacement .= "\n {$placeholder}";
+		$replacement .= "\n</noscript>";
+
+		// Prepare replacement
+		$replacement .= "\n<script" . (!$isHTML5 ? ' type="text/javascript">' : ">");
+		$replacement .= ($isXHTML ? "\n//<![CDATA[" : '' );
+		$replacement .= "\n(function(d, prefix, path, addy{$rand}){";
+		$replacement .= "\n addy{$rand} += '" . implode("' + '&#46;' + '", $mail_parts) . "';";
+		$replacement .= ($isXHTML ? "\n var el, ref = d.getElementById('noscript{$rand}'), helper = d.createElement('div');" : '');
+
+		if ($mailto)
+		{
+			// Create a hyperlink element and href
+			if (!$isXHTML)
+			{
+				$replacement .= "\n d.write('<a ' + path + '=' + prefix + addy{$rand} + '>');";
+			}
+			else
+			{
+				$replacement .= "\n helper.innerHTML = prefix + addy{$rand};";
+				$replacement .= "\n el = d.createElement('a');";
+				$replacement .= "\n el[path] = helper.firstChild.nodeValue;";
+			}
+
+			// Special handling when mail text is different from mail address
+			if ($text)
+			{
+				if ($email)
+				{
+					// Convert text
+					$text = self::_convertEncoding($text);
+
+					// Split email by @ symbol
+					$text = explode('@', $text);
+					$text_parts = explode('.', $text[1]);
+					$replacement .= "\n var addy_text{$rand} = '" . @$text[0] . "' + '&#64;' + '" . implode("' + '&#46;' + '", @$text_parts)
+						. "';";
+				}
+				else
+				{
+					$replacement .= "\n var addy_text{$rand} = '{$text}';";
+				}
+
+				// Set hyperlink text
+				if (!$isXHTML)
+				{
+					$replacement .= "\n d.write(addy_text{$rand} + '</a>');";
+				}
+				else
+				{
+					$replacement .= "\n el.innerHTML = addy_text{$rand};";
+				}
+			}
+			// Set hyperlink text
+			elseif (!$isXHTML)
+			{
+				$replacement .= "\n d.write(addy{$rand} + '</a>')";
+			}
+			else
+			{
+				$replacement .= "\n el.innerHTML = addy{$rand};";
+			}
+		}
+		// Decode html entities and create Text node
+		elseif (!$isXHTML)
+		{
+			$replacement .= "\n d.write('<a ' + path + '=\"' + prefix + addy{$rand} + '\">';";
+			$replacement .= "\n d.write(addy{$rand} + '</a>');";
+		}
+		else
+		{
+			$replacement .= "\n helper.innerHTML = addy{$rand};";
+			$replacement .= "\n el = d.createTextNode(helper.firstChild.nodeValue);";
+		}
+
+		// Insert before <noscript /> element
+		if ($isXHTML)
+		{
+			$replacement .= "\n ref.parentNode.insertBefore(el, ref);";
+		}
+
+		// Close replacement
+		$replacement .= "\n}(document, '&#109;a' + 'i&#108;' + '&#116;o:', 'hr' + 'ef', '" . @$mail[0] . "' + '&#64;'));";
+		$replacement .= ($isXHTML ? "\n//]]>" : '');
+		$replacement .= "\n</script>";
+
+		return $replacement;
+	}
+
+	/**
+	 * Convert encoded text
+	 *
+	 * @param   string  $text  Text to convert
+	 *
+	 * @return  string  The converted text.
+	 *
+	 * @since   1.5
+	 */
+	protected static function convertEncoding($text)
+	{
+		// Replace vowels with character encoding
+		$text = str_replace('a', '&#97;', $text);
+		$text = str_replace('e', '&#101;', $text);
+		$text = str_replace('i', '&#105;', $text);
+		$text = str_replace('o', '&#111;', $text);
+		$text = str_replace('u', '&#117;', $text);
+
+		return $text;
+	}
+}
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