mirror of https://github.com/google/oss-fuzz.git
75 lines
2.0 KiB
Python
75 lines
2.0 KiB
Python
#!/usr/bin/python3
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# Copyright 2022 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 os
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import sys
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import atheris
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from websocket._exceptions import WebSocketException
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from websocket._http import read_headers, _tunnel
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class FuzzMock:
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"""FuzzMock class inspired by SockMock"""
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def __init__(self, packet):
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self.data = [packet]
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self.sent = []
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def gettimeout(self):
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return None
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def recv(self, bufsize):
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if self.data:
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e = self.data.pop(0)
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if isinstance(e, Exception):
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raise e
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if len(e) > bufsize:
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self.data.insert(0, e[bufsize:])
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return e[:bufsize]
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def send(self, data):
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self.sent.append(data)
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return len(data)
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def TestOneInput(data):
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try:
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fdp = atheris.FuzzedDataProvider(data)
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# Create mock socket with fuzzer-derived data.
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mock_sock = FuzzMock(fdp.ConsumeBytes(512))
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_tunnel(
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mock_sock,
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fdp.ConsumeUnicodeNoSurrogates(200),
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fdp.ConsumeIntInRange(1, 1000),
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(
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fdp.ConsumeUnicodeNoSurrogates(100),
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fdp.ConsumeUnicodeNoSurrogates(100)
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)
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)
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except WebSocketException:
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pass
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except UnicodeDecodeError:
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pass
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def main():
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atheris.instrument_all()
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atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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