mirror of https://github.com/google/oss-fuzz.git
98 lines
2.7 KiB
Python
98 lines
2.7 KiB
Python
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#!/usr/bin/python3
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# Copyright 2023 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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import atheris
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import h11
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def fuzz_headers(data):
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fdp = atheris.FuzzedDataProvider(data)
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fuzz_headers = [(fdp.ConsumeBytes(32), fdp.ConsumeBytes(1024)),
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(fdp.ConsumeBytes(32), fdp.ConsumeBytes(1024))]
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try:
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normalized_headers = h11._headers.normalize_and_validate(fuzz_headers)
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get_comma_header(normalized_headers, b'connection')
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set_comma_header(normalized_headers, fdp.ConsumeBytes(64))
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except (h11._util.ProtocolError):
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pass
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try:
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h11._headers.has_expect_100_continue(
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h11._events.Request(method='GET',
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target='/',
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headers=fuzz_headers,
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http_version='1.0'))
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except (h11._util.ProtocolError):
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pass
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def fuzz_receivebuffer(data):
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fdp = atheris.FuzzedDataProvider(data)
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rec_buf = h11._receivebuffer.ReceiveBuffer()
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for i in range(5):
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rec_buf += fdp.ConsumeBytes(124)
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rec_buf.maybe_extract_at_most(fdp.ConsumeIntInRange(1, 100))
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rec_buf.maybe_extract_next_line()
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rec_buf.maybe_extract_lines()
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def fuzz_connection(data):
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fdp = atheris.FuzzedDataProvider(data)
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conn = h11.Connection(our_role=h11.CLIENT)
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event = h11.Request(
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method="GET",
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target="/get",
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headers=[("Host", "127.0.0.1"), ("Connection", "close")],
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)
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conn.send(event)
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conn.send(h11.EndOfMessage())
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conn.next_event()
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conn.receive_data(fdp.ConsumeBytes(1024))
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try:
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event2 = h11.Request(
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method=fdp.ConsumeUnicodeNoSurrogates(5),
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target=fdp.ConsumeUnicodeNoSurrogates(124),
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headers=[(fdp.ConsumeUnicodeNoSurrogates(5),
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fdp.ConsumeUnicodeNoSurrogates(124)),
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(fdp.ConsumeUnicodeNoSurrogates(124),
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fdp.ConsumeUnicodeNoSurrogates(124))],
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)
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conn.send(event2)
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conn.send(h11.EndOfMessage())
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conn.next_event()
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conn.receive_data(fdp.ConsumeBytes(1024))
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except (h11._util.ProtocolError):
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pass
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def TestOneInput(data):
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fuzz_headers(data)
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fuzz_receivebuffer(data)
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fuzz_connection(data)
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def main():
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atheris.instrument_all()
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atheris.Setup(sys.argv, TestOneInput)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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