Coverage for /pythoncovmergedfiles/medio/medio/src/acme2certifier/fuzz/pkcs7_fuzzer.py: 34%

1###### Coverage stub 

2import atexit 

3import coverage 

4cov = coverage.coverage(data_file='.coverage', cover_pylib=True) 

5cov.start() 

6# Register an exist handler that will print coverage 

7def exit_handler(): 

8 cov.stop() 

9 cov.save() 

10atexit.register(exit_handler) 

11####### End of coverage stub 

12#!/usr/bin/python3 

13# Copyright 2026 grindsa 

14# 

15# Licensed under the Apache License, Version 2.0 (the "License"); 

16# you may not use this file except in compliance with the License. 

17# You may obtain a copy of the License at 

18# 

19# http://www.apache.org/licenses/LICENSE-2.0 

20# 

21# Unless required by applicable law or agreed to in writing, software 

22# distributed under the License is distributed on an "AS IS" BASIS, 

23# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

24# See the License for the specific language governing permissions and 

25# limitations under the License. 

26"""Fuzz PKCS#7 to PEM conversion.""" 

27 

28import logging 

29import sys 

30 

31import atheris 

32 

33with atheris.instrument_imports(): 

34 from acme2certifier.acme_srv.helpers.certificates import pkcs7_to_pem 

35 

36_LOGGER = logging.getLogger("fuzz") 

37_LOGGER.addHandler(logging.NullHandler()) 

38_LOGGER.setLevel(logging.CRITICAL) 

39 

40 

41def TestOneInput(data: bytes) -> None: 

42 """Fuzz pkcs7_to_pem.""" 

43 fdp = atheris.FuzzedDataProvider(data) 

44 # Prefer unicode for PEM strategies; also feed raw bytes as latin-1. 

45 if fdp.ConsumeBool(): 

46 content = fdp.ConsumeUnicodeNoSurrogates(fdp.remaining_bytes()) 

47 else: 

48 content = fdp.ConsumeBytes(fdp.remaining_bytes()).decode( 

49 "latin-1", errors="ignore" 

50 ) 

51 try: 

52 pkcs7_to_pem(_LOGGER, content) 

53 except Exception: 

54 pass 

55 

56 

57def main() -> None: 

58 """Entrypoint for Atheris / OSS-Fuzz.""" 

59 atheris.Setup(sys.argv, TestOneInput) 

60 atheris.Fuzz() 

61 

62 

63if __name__ == "__main__": 

64 main()