From 774e65dcb9c849233a6fab745c4b1636cd1deec0 Mon Sep 17 00:00:00 2001
From: Roberto Segura - phproberto <roberto@phproberto.com>
Date: Wed, 28 Jan 2015 13:46:44 +0100
Subject: [PATCH] [fix] escape language strings double quotes

---
 libraries/joomla/language/language.php | 32 +++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/libraries/joomla/language/language.php b/libraries/joomla/language/language.php
index a161f76c3249e..220f7dedb7b79 100644
--- a/libraries/joomla/language/language.php
+++ b/libraries/joomla/language/language.php
@@ -842,7 +842,9 @@ protected function parse($filename)
 		}
 
 		$contents = file_get_contents($filename);
-		$contents = str_replace('_QQ_', '"\""', $contents);
+
+		$contents = $this->prepareContents($contents);
+
 		$strings = @parse_ini_string($contents);
 
 		if (!is_array($strings))
@@ -1404,4 +1406,32 @@ public static function parseXMLLanguageFile($path)
 
 		return $metadata;
 	}
+
+	/**
+	 * Callback for preg_replace_callback to escape double quotes inside language strings.
+	 *
+	 * @param   array  $matches  Array of strings that match with the regular expression
+	 *
+	 * @return  string
+	 *
+	 * @since   3.4
+	 */
+	private function escapeContentsQuotes($matches)
+	{
+		return '"' . str_replace('"', '\"', $matches[1]) . '"';
+	}
+
+	/**
+	 * Sanitize / prepare contents to be used by parse_ini_string.
+	 *
+	 * @param   string  $contents  String containing the contents to prepare
+	 *
+	 * @return  string
+	 *
+	 * @since   3.4
+	 */
+	protected function prepareContents($contents)
+	{
+		return preg_replace_callback('/"(.*)"/', array($this, 'escapeContentsQuotes'), $contents);
+	}
 }