py-bigquery: initial integration (#7744)

* py-bigquery: initial integration

* rename project for the reasons described here https://github.com/google/oss-fuzz/pull/7900

* update pip and install grpcio in dockerfile

projects/g-py-bigquery/Dockerfile

@@ -0,0 +1,22 @@
+# 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 pip3 install --upgrade pip && \
+    pip3 install numpy ipython grpcio
+RUN git clone https://github.com/googleapis/python-bigquery
+COPY build.sh *.py $SRC/
+WORKDIR python-bigquery

projects/g-py-bigquery/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.
+#
+################################################################################
+
+pip3 install .
+
+# Build flask fuzzers
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done

projects/g-py-bigquery/fuzz_parser.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
+import IPython
+
+with atheris.instrument_imports():
+  from google.cloud.bigquery.magics.line_arg_parser.lexer import Lexer
+  from google.cloud.bigquery.magics.line_arg_parser.parser import Parser
+  from google.cloud.bigquery.magics.line_arg_parser.parser import ParseError
+  from google.cloud.bigquery.magics.line_arg_parser.parser import QueryParamsParseError
+
+def TestOneInput(data):
+  fdp = atheris.FuzzedDataProvider(data)
+  s1 = fdp.ConsumeString(sys.maxsize)
+
+  tokens = list(Lexer(s1))
+  if len(tokens) == 0:
+    return
+
+  lexer = Lexer(s1)
+  parser = Parser(lexer)
+  try:
+    parser.input_line()
+  except ParseError:
+    pass
+
+  lexer = Lexer(s1)
+  parser = Parser(lexer)
+  try:
+    parser.collection_items()
+  except QueryParamsParseError:
+    pass
+
+  lexer = Lexer(s1)
+  parser = Parser(lexer)
+  try:
+    parser.dict_items()
+  except QueryParamsParseError:
+    pass
+
+def main():
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+if __name__ == "__main__":
+  main()

projects/g-py-bigquery/project.yaml

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