Html.php

leithoff 2016-04-15 08:50:02 UTC #1

Author: leithoff
New Revision: 55752

URL: http://svn.stylite.de/viewvc/egroupware?rev=55752&view=rev
Log:
prevent possible endless recursion on decodeMailHeader

Modified:
trunk/egroupware/api/src/Mail/Html.php

Modified: trunk/egroupware/api/src/Mail/Html.php
URL: http://svn.stylite.de/viewvc/egroupware/trunk/egroupware/api/src/Mail/Html.php?rev=55752&r1=55751&r2=55752&view=diff

— trunk/egroupware/api/src/Mail/Html.php (original)
+++ trunk/egroupware/api/src/Mail/Html.php Fri Apr 15 10:50:02 2016
@@ -25,18 +25,18 @@
*
* @param string $_string -> part of an mailheader
* @param string $displayCharset the charset parameter specifies the character set to represent the result by (if iconv_mime_decode is to be used)

- @param integer $reclevel param to control recursive calls (to prevent endless recursion)
- @return string
  */

static function decodeMailHeader($_string, $displayCharset=‘utf-8’)
{
-/*

static function decodeMailHeader($_string, $displayCharset=‘utf-8’, $reclevel=0)
{
$maxreclevel=25;
if ($reclevel > $maxreclevel) {
error_log( METHOD.LINE." Recursion Level Exeeded ($reclevel) while decoding $_string ");
return $_string;
}
$reclevel++;
-*/

  //error_log(__FILE__.','.__METHOD__.':'."called with $_string and CHARSET $displayCharset");
  if(function_exists('imap_mime_header_decode'))
  {

@@ -73,20 +73,10 @@
$openTags = substr_count($element->text,’?=’);
if(preg_match(’/?=.+=?/’, $element->text) && $openTags>0 && $openTags==substr_count($element->text,’=?’) && $element->text != $_string)
{

  				$element->text = self::decodeMailHeader($element->text, $element->charset);

  				$element->text = self::decodeMailHeader($element->text, $element->charset, $reclevel);
  				$element->charset = $displayCharset;
  			}

  			$translatedString = Api\Translation::convert($element->text,$element->charset);

-/* //try to be smart about concatenating
-error_log(METHOD.LINE.$translatedString);
-error_log(METHOD.LINE.$newString);

  			if ($translatedString && $newString && strpos($translatedString,$newString)===0)

```
  			{
```

  				$newString = $translatedString;

```
  			}
```
```
  			else
```

-*/

```
  				$newString .= $translatedString;
```

  			$newString .= Api\Translation::convert($element->text,$element->charset);
  		}
  		else
  		{

@@ -94,7 +84,7 @@
$convertAtEnd = true;
}
}

  	if ($convertAtEnd) $newString = self::decodeMailHeader($newString,$displayCharset);

  	if ($convertAtEnd) $newString = self::decodeMailHeader($newString,$displayCharset,$reclevel);
  	return preg_replace('/([\000-\012\015\016\020-\037\075])/','',$newString);
  }
  elseif(function_exists(mb_decode_mimeheader))

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