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Improve performance of FilenameFilter::cleanPath()

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This commit is contained in:
Kijin Sung 2016-03-16 15:25:32 +09:00
parent ca7a7b64ea
commit 94859b1046
1 changed files with 9 additions and 9 deletions
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18
common/framework/filters/filenamefilter.php
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@ -65,16 +65,16 @@ class FilenameFilter
$path = str_replace('\\', '/', $path);
// Remove querystrings and URL fragments.
$path = preg_replace('@[\?#].+$@', '', $path);
if (($querystring = strpbrk($path, '?#')) !== false)
{
$path = substr($path, 0, -1 * strlen($querystring));
}
// Remove duplicate slashes, except at the beginning of a URL.
$path = preg_replace('@(?<!^|^http:|^https:)/{2,}@', '/', $path);
// Remove sequences of three or more dots.
$path = preg_replace('@/\.{3,}/@', '/', $path);
// Remove single dots.
$path = preg_replace('@/(\./)+@', '/', $path);
// Remove single dots, three or more dots, and duplicate slashes.
$path = preg_replace(array(
'@(?<!^|^http:|^https:)/{2,}@',
'@/(?:(?:\.|\.{3,})/)+@',
), '/', $path);
// Remove double dots and the preceding directory.
while (preg_match('@/(?!\.\.)[^/]+/\.\.(?:/|$)@', $path, $matches))