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up the filename length only after multiple collisions

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This commit is contained in:
Rouji 2017-10-02 20:56:04 +02:00
parent 5e0af0eb61
commit 3110662020
1 changed files with 13 additions and 6 deletions
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19
index.php
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@ -116,13 +116,20 @@ function storeFile($name, $tmpFile, $formatted = false)
}
$ext = getExtension($name);
$len = $ID_LENGTH;
do //generate filenames until we get one, that doesn't already exist
$tries_per_len=3; //try random names a few times before upping the length
for ($len = $ID_LENGTH; ; ++$len)
{
$id = rndStr($len++);
$basename = $id . (empty($ext) ? '' : '.' . $ext);
$target_file = $STORE_PATH . $basename;
} while (file_exists($target_file));
echo $len;
for ($n=0; $n<=$tries_per_len; ++$n)
{
$id = rndStr($len);
$basename = $id . (empty($ext) ? '' : '.' . $ext);
$target_file = $STORE_PATH . $basename;
if (!file_exists($target_file))
break 2;
}
}
$res = move_uploaded_file($tmpFile, $target_file);
if ($res)