From 4c0b2c865e4d5f3db1376b8c81485cc6afc2b985 Mon Sep 17 00:00:00 2001
From: DavidKorczynski <david@adalogics.com>
Date: Fri, 2 Dec 2022 18:13:13 +0000
Subject: [PATCH] isodate: initial integration (#9123)

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

Signed-off-by: David Korczynski <david@adalogics.com>
---
 projects/isodate/Dockerfile    | 20 +++++++++++++++
 projects/isodate/build.sh      | 23 +++++++++++++++++
 projects/isodate/fuzz_parse.py | 45 ++++++++++++++++++++++++++++++++++
 projects/isodate/project.yaml  | 10 ++++++++
 4 files changed, 98 insertions(+)
 create mode 100644 projects/isodate/Dockerfile
 create mode 100644 projects/isodate/build.sh
 create mode 100644 projects/isodate/fuzz_parse.py
 create mode 100644 projects/isodate/project.yaml

diff --git a/projects/isodate/Dockerfile b/projects/isodate/Dockerfile
new file mode 100644
index 000000000..666cb0cf6
--- /dev/null
+++ b/projects/isodate/Dockerfile
@@ -0,0 +1,20 @@
+#!/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/gweis/isodate isodate
+RUN python3 -m pip install --upgrade pip && pip install pysecsan
+COPY *.sh *py $SRC/
+WORKDIR $SRC/isodate
diff --git a/projects/isodate/build.sh b/projects/isodate/build.sh
new file mode 100644
index 000000000..95f3540d8
--- /dev/null
+++ b/projects/isodate/build.sh
@@ -0,0 +1,23 @@
+#!/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/isodate/fuzz_parse.py b/projects/isodate/fuzz_parse.py
new file mode 100644
index 000000000..efa25c89b
--- /dev/null
+++ b/projects/isodate/fuzz_parse.py
@@ -0,0 +1,45 @@
+#!/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 isodate
+
+import pysecsan
+pysecsan.sanlib.sanitizer_log_level = 30
+pysecsan.add_hooks()
+
+
+def TestOneInput(data):
+  fdp = atheris.FuzzedDataProvider(data)
+  try:
+    isodate.parse_date(fdp.ConsumeUnicodeNoSurrogates(1024))
+  except (
+    # parse_date can legitimately raise two types of exceptions:
+    # https://github.com/gweis/isodate/blob/8856fdf0e46c7bca00229faa1aae6b7e8ad6e76c/src/isodate/isodates.py#L150-L151
+    isodate.ISO8601Error,
+    ValueError,
+  ):
+    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/isodate/project.yaml b/projects/isodate/project.yaml
new file mode 100644
index 000000000..2509008bd
--- /dev/null
+++ b/projects/isodate/project.yaml
@@ -0,0 +1,10 @@
+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/gweis/isodate
+language: python
+main_repo: https://github.com/gweis/isodate
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com