/**
* @brief decryption of a file
* @param string $source
* @param string $target
* @param string $key the decryption key
*
* This function decrypts a file
*/
public static function decryptFile($source, $target, $key = '')
{
$handleread = fopen($source, "rb");
if ($handleread != FALSE) {
$handlewrite = fopen($target, "wb");
while (!feof($handleread)) {
$content = fread($handleread, 8192);
$enccontent = OC_CRYPT::decrypt($content, $key);
if (feof($handleread)) {
$enccontent = rtrim($enccontent, "");
}
fwrite($handlewrite, $enccontent);
}
fclose($handlewrite);
fclose($handleread);
}
}
/**
* @brief decryption of a file
* @param $filename
* @param $key the decryption key
*
* This function decrypts a file
*/
public static function decryptfile($filename, $key)
{
$handleread = fopen($filename . OC_Crypt::$encription_extension, "rb");
if ($handleread != FALSE) {
$handlewrite = fopen($filename, "wb");
while (!feof($handleread)) {
$content = fread($handleread, 8192);
$enccontent = OC_CRYPT::decrypt($content, $key);
fwrite($handlewrite, $enccontent);
}
fclose($handlewrite);
unlink($filename . OC_Crypt::$encription_extension);
}
fclose($handleread);
}
