common.py 文件源码

def upload_token(self, bucket, key=None, expires=3600, policys=None):
        assert bucket != None and bucket != "", "invalid bucket"
        all_policys = policys or {}
        if 'scope' not in all_policys:
            if key:
                all_policys['scope'] = bucket + ':' + key
            else:
                all_policys['scope'] = bucket
        if 'deadline' not in all_policys:
            all_policys['deadline'] = int(
                datetime.timestamp(datetime.now())) + expires
        json_policys = json_encode(all_policys)
        b64_encoded_policys = urlsafe_base64_encode(json_policys)
        sha1_sign = hmac_sha1(self.__secret_key, b64_encoded_policys)
        b64_encoded_sign = urlsafe_base64_encode(sha1_sign)
        upload_token = self.__access_key + ':' + \
            bytes_decode(b64_encoded_sign) + ':' + \
            bytes_decode(b64_encoded_policys)
        return upload_token