mirror of https://github.com/google/oss-fuzz.git
81 lines
1.9 KiB
Python
81 lines
1.9 KiB
Python
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#!/usr/bin/python3
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# Copyright 2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import atheris
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with atheris.instrument_imports(enable_loader_override=False):
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from xdg import Mime
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from xdg.Exceptions import ParsingError
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@atheris.instrument_func
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def TestOneInput(input_bytes):
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# We need to make the file an absolute path
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testfile_path = os.path.join(os.getcwd(), "testfile.tmp")
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with open(testfile_path, "wb") as f:
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f.write(input_bytes)
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# Test basic Mime API
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Mime.get_type2(testfile_path)
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Mime.get_type_by_contents(testfile_path)
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Mime.get_type_by_data(input_bytes)
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# Test GlobDB
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globs = Mime.GlobDB()
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try:
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globs.merge_file(testfile_path)
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globs.merge_file(testfile_path)
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except UnicodeError as e:
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pass
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except ValueError as e:
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if (
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"not enough values to unpack" in str(e) or
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"invalid literal for int" in str(e)
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):
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pass
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else:
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raise e
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# Test MagicDB
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magic = Mime.MagicDB()
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try:
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magic.merge_file(testfile_path)
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magic.finalise()
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except UnicodeDecodeError:
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pass
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except (OSError, ValueError) as e:
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msg = str(e)
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if (
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"Not a MIME magic file" in msg or
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"Malformed section heading" in msg
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):
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pass
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else:
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raise e
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# Cleanup
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os.remove(testfile_path)
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def main():
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atheris.instrument_all()
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atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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