Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_xmlutil.py: 43%

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 atheris 

28import sys 

29try: 

30 from xml.etree import cElementTree as ET 

31except ImportError: 

32 from xml.etree import ElementTree as ET 

33from xml.etree.ElementTree import ParseError 

34with atheris.instrument_imports(): 

35 from adal.xmlutil import * 

36 

37XMLTEMPLATE=""" 

38<?xml version="1.0"?> 

39<%OUTTER%> 

40 <%INNER% name="%INNERNAME%"> 

41 <%LEAF1%>%LEAF1VALUE1%</%LEAF1%> 

42 <%LEAF2%>%LEAF2VALUE1%</%LEAF2%> 

43 <%LEAF3% name="%LEAF3NAME1%" value="%LEAF3VALUE1%"/> 

44 <%LEAF3% name="%LEAF3NAME4%" value="%LEAF3VALUE4%"/> 

45 </%INNER%> 

46 <%INNER% name="%INNERNAME%"> 

47 <%LEAF1%>%LEAF1VALUE2%</rank> 

48 <%LEAF2%>%LEAF2VALUE2%</year> 

49 <%LEAF3% name="%LEAF3NAME2%" value="%LEAF3VALUE2%"/> 

50 </%INNER%> 

51 <%INNER% name="%INNERNAME%"> 

52 <%LEAF1%>%LEAF1VALUE3%</%LEAF1%> 

53 <%LEAF2%>%LEAF2VALUE3%</%LEAF2%> 

54 <%LEAF3% name="%LEAF3NAME3%" value="%LEAF3VALUE3%"/> 

55 </%INNER%> 

56</%OUTTER%> 

57""" 

58 

59def generate_sample_xml(fdp): 

60 global XMLTEMPLATE 

61 xml_string = XMLTEMPLATE 

62 

63 replace_tag = ["%OUTTER%","%INNER%","%LEAF1%","%LEAF2%","%LEAF3%"] 

64 replace_value = ["%INNERNAME%", 

65 "%LEAF1VALUE1%","%LEAF2VALUE1%","%LEAF3NAME1%","%LEAF3VALUE1%", 

66 "%LEAF1VALUE2%","%LEAF2VALUE2%","%LEAF3NAME2%","%LEAF3VALUE3%", 

67 "%LEAF1VALUE3%","%LEAF2VALUE3%","%LEAF3NAME2%","%LEAF3VALUE4%", 

68 "%LEAF3NAME4","%LEAF3VALUE4%" 

69 ] 

70 

71 for tag in replace_tag+replace_value: 

72 xml_string = xml_string.replace(tag,fdp.ConsumeUnicodeNoSurrogates(10)) 

73 

74 return xml_string 

75 

76def TestInput(data): 

77 fdp = atheris.FuzzedDataProvider(data) 

78 

79 try: 

80 expand_q_names(fdp.ConsumeString(100)) 

81 except IndexError as e: 

82 if "Unable to parse XPath string:" not in str(e): 

83 raise e 

84 except KeyError: 

85 return 

86 

87 try: 

88 dom = ET.fromstring(generate_sample_xml(fdp)) 

89 except ParseError: 

90 return 

91 

92 xpath_find(dom,fdp.ConsumeString(30)) 

93 serialize_node_children(dom) 

94 is_element_node(dom) 

95 find_element_text(dom) 

96 

97def main(): 

98 atheris.Setup(sys.argv, TestInput, enable_python_coverage=True) 

99 atheris.Fuzz() 

100 

101if __name__ == "__main__": 

102 main()