oss-fuzz/projects/flask/fuzz_werkzeug_formparser.py

46 lines
1.3 KiB
Python

#!/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 io
import sys
with atheris.instrument_imports():
from werkzeug.formparser import FormDataParser
from werkzeug.formparser import MultiPartParser
def TestOneInput(data):
parser = FormDataParser()
parser.parse(io.BytesIO(data), "multipart/form-data", 0)
parser.parse(io.BytesIO(data), "application/x-url-encoded", 0)
parser.parse(io.BytesIO(data), "application/x-www-form-urlencoded", 0)
multiparser = MultiPartParser(len(data))
try:
multiparser.parse(io.BytesIO(data), b"", len(data))
except ValueError as e:
if "Invalid form-data" in str(e):
return
raise e
def main():
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()