decorator: initial integration (#7998)

* decorator: initial integration
Create fuzzers

* decorator: initial integtaion
Fix fuzzer

projects/decorator/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 git clone https://github.com/micheles/decorator
+WORKDIR decorator
+
+COPY build.sh fuzz_*.py $SRC/

projects/decorator/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.
+#
+################################################################################
+
+# Build and install project (using current CFLAGS, CXXFLAGS).
+pip3 install --upgrade pip
+pip3 install .
+
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done

projects/decorator/fuzz_decorator.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 random
+with atheris.instrument_imports():
+     from decorator import *
+
+def TestInput(data):
+    fdp = atheris.FuzzedDataProvider(data)
+
+    @decorator
+    def dummy_decorator(func, dummy=1, *args, **kw):
+        result = func(*args, **kw)
+
+    @decoratorx
+    def dummy_decoratorx(func, *args, **kw):
+        result = func(*args, **kw)
+
+    def dummy_decorate(func, dummy=1, *args, **kw):
+        result = func(*args, **kw)
+
+    @dummy_decorator(dummy=fdp.ConsumeInt(8))
+    def func1(dummy):
+        pass
+
+    @dummy_decoratorx
+    def func2(dummy):
+        pass
+
+    def func3(dummy):
+        pass
+
+    choice = fdp.ConsumeIntInRange(1,3)
+	
+    if choice == 1:
+        func1(fdp.ConsumeBytes(fdp.ConsumeIntInRange(1,1000)))
+    if choice == 2:
+        func2(fdp.ConsumeBytes(fdp.ConsumeIntInRange(1,1000)))
+    if choice == 3:
+        decorate(func3,dummy_decorate,fdp.ConsumeInt(fdp.ConsumeIntInRange(1,1000)))
+        func3(fdp.ConsumeBytes(10))
+
+def main():
+    atheris.Setup(sys.argv, TestInput, enable_python_coverage=True)
+    atheris.Fuzz()
+
+if __name__ == "__main__":
+    main()

projects/decorator/fuzz_funcmarker.py

@@ -0,0 +1,44 @@
+#!/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 random
+with atheris.instrument_imports():
+     from decorator import *
+
+def base_func(*args, **kw):
+    pass
+
+def TestInput(data):
+    fdp = atheris.FuzzedDataProvider(data)
+
+    try:
+        FunctionMaker.create(
+            "f%s(%s)"%(fdp.ConsumeString(20),fdp.ConsumeString(20)),
+            "base_func()",
+            dict(f=base_func),
+            addsource=fdp.ConsumeBool()
+        )
+    except Exception as e:
+        if "Error in generated code" not in str(e):
+             raise e
+
+def main():
+    atheris.Setup(sys.argv, TestInput, enable_python_coverage=True)
+    atheris.Fuzz()
+
+if __name__ == "__main__":
+    main()

projects/decorator/project.yaml

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+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/micheles/decorator
+language: python
+main_repo: https://github.com/micheles/decorator
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com
+- adam@adalogics.com
+- arthur.chan@adalogics.com