patch for #382

1 files changed, 51 insertions, 40 deletions

diff --git a/framework/Web/Javascripts/TJavaScript.php b/framework/Web/Javascripts/TJavaScript.php
index c492c197..68908f9e 100644
--- a/framework/Web/Javascripts/TJavaScript.php
+++ b/framework/Web/Javascripts/TJavaScript.php
@@ -76,45 +76,14 @@ class TJavaScript
 

 	/**

 	 * Quotes a javascript string.

-	 * After processing, the string can be safely enclosed within a pair of

-	 * quotation marks and serve as a javascript string.

+	 * After processing, the string is safely enclosed within a pair of

+	 * quotation marks and can serve as a javascript string.

 	 * @param string string to be quoted

-	 * @param boolean whether this string is used as a URL

 	 * @return string the quoted string

 	 */

-	public static function quoteString($js,$forUrl=false)

+	public static function quoteString($js)

 	{

-		return self::quoteUTF8(($forUrl) ? strtr($js,array('%'=>'%25',"\t"=>'\t',"\n"=>'\n',"\r"=>'\r','"'=>'\"','\''=>'\\\'','\\'=>'\\\\')) : strtr($js,array("\t"=>'\t',"\n"=>'\n',"\r"=>'\r','"'=>'\"','\''=>'\\\'','\\'=>'\\\\')));

-	}

-

-	public static function quoteUTF8($str)

-	{

-		$entities = '';

-		$length = strlen($str);

-		$lookingFor = 1;

-		$unicode = array();

-		$values = array();

-

-		for($i=0;$i<$length;$i++) {

-			$thisValue = ord($str[$i]);

-			if($thisValue < 128)

-				$unicode[] = $thisValue;

-			else {

-				if(count($values)==0)

-					$lookingFor = ($thisValue<224) ? 2 : 3;

-				$values[] = $thisValue;

-				if(count($values)==$lookingFor) {

-					$unicode[] = ($lookingFor == 3) ? (($values[0]%16)*4096)+(($values[1]%64)*64)+($values[2]%64) : (($values[0]%32)*64)+($values[1]%64);

-					$values = array();

-					$lookingFor = 1;

-				}

-			}

-		}

-

-		foreach($unicode as $value)

-			$entities .= ($value < 128) ? chr($value) : '\u'.str_pad(dechex($value), 4, '0', STR_PAD_LEFT);

-

-		return $entities;

+		return self::jsonEncode($js,JSON_HEX_QUOT | JSON_HEX_APOS | JSON_HEX_TAG);

 	}

 

 	/**

@@ -176,7 +145,7 @@ class TJavaScript
 			if(self::isFunction($value))

 				return preg_replace('/^\s*javascript:/', '', $value);

 			else

-				return "'".self::quoteString($value)."'";

+				return self::quoteString($value);

 		}

 		else if(is_bool($value))

 			return $value?'true':'false';

@@ -235,7 +204,7 @@ class TJavaScript
 	 * @param mixed variable to be encoded

 	 * @return string encoded string

 	 */

-	public static function jsonEncode($value)

+	public static function jsonEncode($value, $options = 0)

 	{

 		if (function_exists('json_encode'))

 		{

@@ -243,7 +212,9 @@ class TJavaScript
 				($g=Prado::getApplication()->getGlobalization(false))!==null &&

 				strtoupper($enc=$g->getCharset())!='UTF-8')

 				$value=iconv($enc, 'UTF-8', $value);

-			return json_encode($value);

+			$s = json_encode($value,$options);

+			self::checkJsonError();

+			return $s;

 		}

 

 		if(self::$_json === null)

@@ -260,12 +231,52 @@ class TJavaScript
 	public static function jsonDecode($value)

 	{

 		if (function_exists('json_decode'))

-			return json_decode($value);

-

+		{

+			$s= json_decode($value);

+			self::checkJsonError();

+			return $s;

+		}

 		if(self::$_json === null)

 			self::$_json = Prado::createComponent('System.Web.Javascripts.TJSON');

 		return self::$_json->decode($value);

 	}

+	

+	private static function checkJsonError()

+	{

+		// requires php 5.3.0

+		if (function_exists('json_last_error'))

+		{

+			// requires php 5.3.3

+			if(!defined('JSON_ERROR_UTF8'))

+				define('JSON_ERROR_UTF8', null);

+

+			switch (json_last_error())

+			{

+				case JSON_ERROR_NONE:

+					return;

+					break;

+				case JSON_ERROR_DEPTH:

+					$msg = 'Maximum stack depth exceeded';

+    				break;

+				case JSON_ERROR_STATE_MISMATCH:

+					$msg = 'Underflow or the modes mismatch';

+    				break;

+				case JSON_ERROR_CTRL_CHAR:

+					$msg = 'Unexpected control character found';

+					break;

+				case JSON_ERROR_SYNTAX:

+					$msg = 'Syntax error, malformed JSON';

+    				break;

+				case JSON_ERROR_UTF8:

+					$msg = 'Malformed UTF-8 characters, possibly incorrectly encoded';

+					break;

+				default:

+					$msg = 'Unknown error';

+    				break;

+			}

+			throw new Exception("JSON encode error ($err): $msg");

+		}

+	}

 

 	/**

 	 * Minimize the size of a javascript script.