joomla/jedchecker
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Merge PR #172 into develop

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This commit is contained in:
Llewellyn van der Merwe 2022-01-15 13:29:35 +02:00
commit 65b609f8cc
Signed by: Llewellyn
GPG Key ID: EFC0C720A240551C
1 changed files with 121 additions and 4 deletions
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125
administrator/components/com_jedchecker/libraries/helper.php
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@ -169,7 +169,7 @@ abstract class JEDCheckerHelper
$code = substr($content, 0, $pos);
$cleanContent = $isCleanHtml ? self::removeContent($code) : $code;
while (preg_match('/(?:[\'"]|\/\*|\/\/|#|\?>)/', $content, $match, PREG_OFFSET_CAPTURE, $pos))
while (preg_match('/[\'"`]|<<<|\/\*|\/\/|#|\?>/', $content, $match, PREG_OFFSET_CAPTURE, $pos))
{
$foundPos = $match[0][1];
$cleanContent .= substr($content, $pos, $foundPos - $pos);
@ -186,11 +186,47 @@ abstract class JEDCheckerHelper
return $cleanContent . ($isCleanStrings ? $q : substr($content, $pos));
}
$code = substr($match[0], 1, -1);
$cleanContent .= $q . ($isCleanStrings ? self::removeContent($code, $q === '"') : $code) . $q;
$pos += strlen($match[0]);
break;
case '`':
if (!preg_match("/`.*?`/As", $content, $match, 0, $pos))
{
return $cleanContent . substr($content, $pos);
}
$code = $match[0];
$cleanContent .= $isCleanStrings ? $q . self::removeContent($code) . $q : $code;
$cleanContent .= $code;
$pos += strlen($code);
break;
case '<<<':
$cleanContent .= '<<<';
$pos += 3;
if (!preg_match('/([a-z_]\w*|\'.*?\'|".*?")\n/iA', $content, $match, 0, $pos))
{
break;
}
$identifier = $match[1];
$cleanContent .= $match[0];
$pos += strlen($match[0]);
$foundPos = strpos($content, $identifier, $pos);
if ($foundPos === false)
{
return $cleanContent . ($isCleanStrings ? '' : substr($content, $pos));
}
$code = substr($content, $pos, $foundPos - $pos);
$cleanContent .= ($isCleanStrings ? self::removeContent($code, $identifier[0] !== "'") : $code) . $identifier;
$pos += strlen($code) + strlen($identifier);
break;
case '/*':
$cleanContent .= '/*';
$pos += 2;
@ -263,8 +299,89 @@ abstract class JEDCheckerHelper
* @return string
* @since 2.4
*/
protected static function removeContent($content)
protected static function removeContent($content, $parse = false)
{
return str_repeat("\n", substr_count($content, "\n"));
if (!$parse)
{
return str_repeat("\n", substr_count($content, "\n"));
}
$pos = 0;
$cleanContent = '';
while (preg_match('/\n|\\|\{\$|\$\{/', $content, $match, PREG_OFFSET_CAPTURE, $pos))
{
$foundPos = $match[0][1];
$cleanContent .= substr($content, $pos, $foundPos - $pos);
$pos = $foundPos;
switch ($match[0][0])
{
case "\n":
$cleanContent .= "\n";
$pos++;
break;
case '\\':
$pos++;
if ($pos < strlen($content) && $content[$pos] === "\n")
{
$cleanContent .= "\\\n";
}
$pos++;
break;
case '{$':
case '${':
$posx = $pos + 2;
$braces = 1;
$strlen = strlen($content);
while ($braces > 0 && $posx < $strlen)
{
$q = $content[$posx];
switch ($q)
{
case '{':
$braces++;
break;
case '}':
$braces--;
break;
case '"':
case "'":
if (!preg_match("/$q(?>[^$q\\\\]+|\\\\.)*$q/As", $content, $match, 0, $posx))
{
return $cleanContent . substr($content, $pos);
}
$posx += strlen($match[0]);
break;
case '`':
if (!preg_match("/`.*?`/As", $content, $match, 0, $posx))
{
return $cleanContent . substr($content, $pos);
}
$posx += strlen($match[0]);
break;
}
$posx++;
}
$cleanContent .= substr($content, $pos, $posx - $pos);
$pos = $posx;
break;
}
}
return $cleanContent;
}
}