/**
* 支持自定义fileid签名函数
* 复制、删除操作，fileid必须指定，且expired为0
* @param string $bucket 空间名称
* @param string $fileid 自定义fileid，无需urlencode
* @param int $expired 过期时间，单次签名请传0并指定fileid
* @return userid 用户userid，建议不指定
*/
public static function getAppSignV2($bucket, $fileid, $expired, $userid = '0')
{
$secretId = Conf::SECRET_ID;
$secretKey = Conf::SECRET_KEY;
$appid = Conf::APPID;
if (empty($secretId) || empty($secretKey) || empty($appid)) {
ImageV2::setMessageInfo(-1, "sign error");
return false;
}
$puserid = '';
if (isset($userid)) {
if (strlen($userid) > 64) {
ImageV2::setMessageInfo(-1, "sign error");
return false;
}
$puserid = $userid;
}
$now = time();
$rdm = rand();
$plainText = 'a=' . $appid . '&b=' . $bucket . '&k=' . $secretId . '&e=' . $expired . '&t=' . $now . '&r=' . $rdm . '&u=' . $puserid . '&f=' . $fileid;
$bin = hash_hmac("SHA1", $plainText, $secretKey, true);
$bin = $bin . $plainText;
$sign = base64_encode($bin);
return $sign;
}
public function delete($bucket, $key)
{
$ret = ImageV2::del($bucket, $key);
return json_encode(array('error' => $ret['code'], 'msg' => $ret));
}