Class HTTPResponse

scapy/layers/http.py:555–598

class HTTPResponse(_HTTPContent):
    name = "HTTP Response"
    fields_desc = (
        [
            # First line
            _HTTPHeaderField("Http-Version", "HTTP/1.1"),
            _HTTPHeaderField("Status-Code", "200"),
            _HTTPHeaderField("Reason-Phrase", "OK"),
            # Headers
        ]
        + (
            _generate_headers(
                GENERAL_HEADERS,
                RESPONSE_HEADERS,
                COMMON_UNSTANDARD_GENERAL_HEADERS,
                COMMON_UNSTANDARD_RESPONSE_HEADERS,
            )
        )
        + [
            _HTTPHeaderField("Unknown-Headers", None),
        ]
    )

    def answers(self, other):
        return HTTPRequest in other

    def do_dissect(self, s):
        """From the HTTP packet string, populate the scapy object"""
        first_line, body = _dissect_headers(self, s)
        try:
            HTTPVersion, Status, Reason = re.split(rb"\s+", first_line, maxsplit=2)
            self.setfieldval("Http_Version", HTTPVersion)
            self.setfieldval("Status_Code", Status)
            self.setfieldval("Reason_Phrase", Reason)
        except ValueError:
            pass
        if body:
            self.raw_packet_cache = s[: -len(body)]
        else:
            self.raw_packet_cache = s
        return body

    def mysummary(self):
        return self.sprintf("%HTTPResponse.Status_Code% %HTTPResponse.Reason_Phrase%")


# General HTTP class + defragmentation