signers.py 文件源码

def generate_presigned_url(self, request_dict, operation_name,
                               expires_in=3600, region_name=None):
        """Generates a presigned url

        :type request_dict: dict
        :param request_dict: The prepared request dictionary returned by
            ``botocore.awsrequest.prepare_request_dict()``

        :type operation_name: str
        :param operation_name: The operation being signed.

        :type expires_in: int
        :param expires_in: The number of seconds the presigned url is valid
            for. By default it expires in an hour (3600 seconds)

        :type region_name: string
        :param region_name: The region name to sign the presigned url.

        :returns: The presigned url
        """
        request = create_request_object(request_dict)
        self.sign(operation_name, request, region_name,
                  'presign-url', expires_in)

        request.prepare()
        return request.url