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More specific modules (like collections.abc) can now be used. Generated with: ruff check --extend-select UP035 --fix
60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
"""
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Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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SPDX-License-Identifier: MPL-2.0
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, you can obtain one at https://mozilla.org/MPL/2.0/.
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See the COPYRIGHT file distributed with this work for additional
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information regarding copyright ownership.
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"""
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from collections.abc import AsyncGenerator
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import dns.rdatatype
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import dns.rrset
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from isctest.asyncserver import (
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ControllableAsyncDnsServer,
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DnsResponseSend,
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DomainHandler,
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QueryContext,
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ResponseAction,
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ToggleResponsesCommand,
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)
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class ExtraAnswersHandler(DomainHandler):
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"""
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Answer from zone data, inserting extra RRsets into responses to A queries.
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"""
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domains = ["attackSecureDomain.net3."]
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async def get_responses(
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self, qctx: QueryContext
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) -> AsyncGenerator[ResponseAction, None]:
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if qctx.qtype == dns.rdatatype.A:
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ns_rrset = dns.rrset.from_text(
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"net3.", 300, qctx.qclass, dns.rdatatype.NS, "local.net3."
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)
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qctx.response.answer.append(ns_rrset)
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a_rrset = dns.rrset.from_text(
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"local.net3.", 300, qctx.qclass, dns.rdatatype.A, "10.53.0.11"
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)
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qctx.response.additional.append(a_rrset)
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yield DnsResponseSend(qctx.response)
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def main() -> None:
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server = ControllableAsyncDnsServer()
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server.install_control_command(ToggleResponsesCommand())
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server.install_response_handler(ExtraAnswersHandler())
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server.run()
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if __name__ == "__main__":
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main()
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