oss-fuzz/projects/pygments/fuzz_lexers.py

42 lines
1.3 KiB
Python

#!/usr/bin/python3
# Copyright 2020 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 pygments
import pygments.formatters.html
import pygments.lexers
formatter = pygments.formatters.html.HtmlFormatter()
# pygments.LEXERS.values() is a list of tuples like this, with some of then empty:
# (textual class name, longname, tuple of aliases, tuple of filename patterns, tuple of mimetypes)
LEXERS = [l[2][0] for l in pygments.lexers.LEXERS.values() if l[2]]
def TestOneInput(data: bytes) -> int:
fdp = atheris.FuzzedDataProvider(data)
random_lexer = pygments.lexers.get_lexer_by_name(fdp.PickValueInList(LEXERS))
str_data = fdp.ConsumeUnicode(atheris.ALL_REMAINING)
pygments.highlight(str_data, random_lexer, formatter)
return 0
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput)
atheris.Fuzz()