abseil-py: initial integration (#9207)

Signed-off-by: David Korczynski <david@adalogics.com>

Signed-off-by: David Korczynski <david@adalogics.com>

projects/abseil-py/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/abseil/abseil-py abseil-py
+COPY *.sh *py $SRC/
+WORKDIR $SRC/abseil-py

projects/abseil-py/build.sh

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+#!/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.
+#
+################################################################################
+python3 setup.py install
+cd ../
+mkdir fuzzbuilds
+cd fuzzbuilds
+
+# Build fuzzers in $OUT.
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done

projects/abseil-py/fuzz_argparse.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 sys
+import enum
+import atheris
+
+from absl import flags
+from absl.flags import _exceptions
+from absl.flags import argparse_flags
+
+class FuzzEnum(enum.Enum):
+  VAL1 = object()
+  VAL2 = object()
+
+
+def TestOneInput(data):
+  """Hits the logic in https://github.com/abseil/abseil-py/tree/main/absl/flags"""
+  fdp = atheris.FuzzedDataProvider(data)
+
+  def rs(size):
+    return fdp.ConsumeUnicodeNoSurrogates(size)
+
+  fuzz_flag_values = flags.FlagValues()
+  try:
+    flags.DEFINE_string(rs(256), None, rs(256), flag_values = fuzz_flag_values)
+  except _exceptions.Error:
+    pass
+
+  try:
+    flags.DEFINE_float(rs(256), 0.0, rs(256), flag_values = fuzz_flag_values)
+  except _exceptions.Error:
+    pass
+
+  try:
+    flags.DEFINE_enum_class(rs(256), None, FuzzEnum, rs(256), flag_values = fuzz_flag_values)
+  except _exceptions.Error:
+    pass
+
+  try:
+    flags.DEFINE_integer(rs(256), rs(256), rs(256), flag_values = fuzz_flag_values)
+  except _exceptions.Error:
+    pass
+  
+  command_line_args = []
+  for idx in range(fdp.ConsumeIntInRange(1, 20)):
+    command_line_args.append(rs(256))
+
+  # Parse it all
+  try:
+    fuzz_flag_values(command_line_args)
+  except _exceptions.Error:
+    pass
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()

projects/abseil-py/project.yaml

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+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/abseil/abseil-py
+language: python
+main_repo: https://github.com/abseil/abseil-py
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com