oss-fuzz/projects/jupyter_server/fuzz_serialization.py

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#!/usr/bin/python3
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import atheris
import sys
with atheris.instrument_imports():
from jupyter_client.session import Session
from jupyter_server.base.zmqhandlers import (
deserialize_binary_message,
serialize_binary_message,
)
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
s1 = fdp.ConsumeString(50)
s2 = fdp.ConsumeString(50)
if len(s1) == 0 or len(s2) == 0:
return
s = Session()
msg = s.msg("data_pub", content={s1: s2})
msg["buffers"] = [
memoryview(fdp.ConsumeBytes(5)),
memoryview(fdp.ConsumeBytes(5)),
memoryview(fdp.ConsumeBytes(5))
]
bmsg = serialize_binary_message(msg)
msg2 = deserialize_binary_message(bmsg)
assert msg2 == msg
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()