69 lines
1.6 KiB
Python
69 lines
1.6 KiB
Python
#!/usr/bin/python3
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# Copyright 2020 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 sys
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import atheris
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with atheris.instrument_imports():
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import logging
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import warnings
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from bs4 import BeautifulSoup
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try:
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import HTMLParser
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HTMLParseError = HTMLParser.HTMLParseError
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except ImportError:
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# HTMLParseError is removed in Python 3.5. Since it can never be
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# thrown in 3.5, we can just define our own class as a placeholder.
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class HTMLParseError(Exception):
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pass
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@atheris.instrument_func
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def TestOneInput(data):
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"""TestOneInput gets random data from the fuzzer, and throws it at bs4."""
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if len(data) < 1:
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return
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parsers = ['lxml-xml', 'html5lib', 'html.parser', 'lxml']
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try:
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idx = int(data[0]) % len(parsers)
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except ValueError:
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return
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try:
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soup = BeautifulSoup(data[1:], features=parsers[idx])
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except HTMLParseError:
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return
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except ValueError:
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return
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list(soup.find_all(True))
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soup.prettify()
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def main():
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logging.disable(logging.CRITICAL)
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warnings.filterwarnings('ignore')
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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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