diff --git a/projects/click/Dockerfile b/projects/click/Dockerfile new file mode 100644 index 000000000..4e485d072 --- /dev/null +++ b/projects/click/Dockerfile @@ -0,0 +1,18 @@ +#!/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. +FROM gcr.io/oss-fuzz-base/base-builder-python +RUN git clone https://github.com/pallets/click click +COPY *.sh *py $SRC/ +WORKDIR $SRC/click diff --git a/projects/click/build.sh b/projects/click/build.sh new file mode 100644 index 000000000..338e12e52 --- /dev/null +++ b/projects/click/build.sh @@ -0,0 +1,22 @@ +#!/bin/bash -eu +# 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. +# +################################################################################ +pip3 install . + +# Build fuzzers in $OUT. +for fuzzer in $(find $SRC -name 'fuzz_*.py'); do + compile_python_fuzzer $fuzzer +done diff --git a/projects/click/fuzz_parser.py b/projects/click/fuzz_parser.py new file mode 100644 index 000000000..b4a0062fd --- /dev/null +++ b/projects/click/fuzz_parser.py @@ -0,0 +1,56 @@ +#!/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 sys +import atheris + +import click +from click.parser import OptionParser +from click import exceptions + + +def TestOneInput(data): + fdp = atheris.FuzzedDataProvider(data) + + # Create a parser we can fuzz. + # This can be extended further by creating logic that will create arbitrary + # parser. + ctx = click.Context(click.Command("fuzz")) + parser = OptionParser(ctx) + click.Option("+z", is_flag=True).add_to_parser(parser, ctx) + click.Option("-b", is_flag=False).add_to_parser(parser, ctx) + click.Option("+c", multiple=fdp.ConsumeBool()).add_to_parser(parser, ctx) + click.Option("-d", default="abc").add_to_parser(parser, ctx) + click.Option("+e", type=int).add_to_parser(parser, ctx) + click.Option("-f", type=click.Choice(["option1", "option2"])).add_to_parser(parser, ctx) + click.Option("!g", type=click.Choice(["option1", "option2"])).add_to_parser(parser, ctx) + click.Option("!h", default="abcd").add_to_parser(parser, ctx) + + args = [] + for idx in range(fdp.ConsumeIntInRange(1, 15)): + args.append(fdp.ConsumeUnicodeNoSurrogates(64)) + try: + parser.parse_args(args) + except exceptions.ClickException: + pass + + +def main(): + atheris.instrument_all() + atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) + atheris.Fuzz() + + +if __name__ == "__main__": + main() diff --git a/projects/click/project.yaml b/projects/click/project.yaml new file mode 100644 index 000000000..883200043 --- /dev/null +++ b/projects/click/project.yaml @@ -0,0 +1,10 @@ +fuzzing_engines: +- libfuzzer +homepage: https://github.com/pallets/click +language: python +main_repo: https://github.com/pallets/click +sanitizers: +- address +- undefined +vendor_ccs: +- david@adalogics.com