Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_http.py: 57%

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 2022 Google LLC 

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 

27import os 

28import sys 

29import atheris 

30 

31from websocket._exceptions import WebSocketException 

32from websocket._http import read_headers, _tunnel 

33 

34 

35class FuzzMock: 

36 """FuzzMock class inspired by SockMock""" 

37 def __init__(self, packet): 

38 self.data = [packet] 

39 self.sent = [] 

40 

41 def gettimeout(self): 

42 return None 

43 

44 def recv(self, bufsize): 

45 if self.data: 

46 e = self.data.pop(0) 

47 if isinstance(e, Exception): 

48 raise e 

49 if len(e) > bufsize: 

50 self.data.insert(0, e[bufsize:]) 

51 return e[:bufsize] 

52 

53 def send(self, data): 

54 self.sent.append(data) 

55 return len(data) 

56 

57 

58def TestOneInput(data): 

59 try: 

60 fdp = atheris.FuzzedDataProvider(data) 

61 # Create mock socket with fuzzer-derived data. 

62 mock_sock = FuzzMock(fdp.ConsumeBytes(512)) 

63 _tunnel( 

64 mock_sock, 

65 fdp.ConsumeUnicodeNoSurrogates(200), 

66 fdp.ConsumeIntInRange(1, 1000), 

67 ( 

68 fdp.ConsumeUnicodeNoSurrogates(100), 

69 fdp.ConsumeUnicodeNoSurrogates(100) 

70 ) 

71 ) 

72 except WebSocketException: 

73 pass 

74 except UnicodeDecodeError: 

75 pass 

76 

77 

78def main(): 

79 atheris.instrument_all() 

80 atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) 

81 atheris.Fuzz() 

82 

83 

84if __name__ == "__main__": 

85 main()