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tmp.py
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tmp.py
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from utils import *
def test_data_match():
"""
已验证数据集中的关键词都匹配
:return:
"""
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
print('not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
program = re.sub(f"#ifndef OMITBAD.*?#endif /\* OMITBAD \*/", "", program, flags=re.DOTALL)
program = re.sub(f"#ifndef OMITGOOD.*?#endif /\* OMITGOOD \*/", "", program, flags=re.DOTALL)
if program.find('#ifdef INCLUDEMAIN'):
program = (program[:program.find("#ifdef INCLUDEMAIN")] +
re.sub(f"#endif", "", program[program.find("#ifdef INCLUDEMAIN") + 18:]))
program = re.sub(f"\n+", "\n", program)
if program.find("#ifdef INCLUDEMAIN") != -1:
if program[program.find("#ifdef INCLUDEMAIN"):].count('#endif') != 1:
print(program[program.find("#ifdef INCLUDEMAIN"):].count('#endif'))
print('ifdef main not match:', f['name'])
print('[cwe]', cwe, 'done')
def test_location() -> None:
"""
已验证数据集中大部分样本都【不】匹配
:return:
"""
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
print('[file] not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
if program.find('/* FLAW: ') != -1:
program = program[:program.find('/* FLAW: ')]
total_line = program.count('\n')
if int(f['line']) != total_line + 2:
print('[line] not match:', f['name'])
else:
print('[flaw] not found:', f['name'])
print('[cwe]', cwe, 'done')
def test_special_char(s) -> None:
"""
已验证数据集中不包含***和$$$
:return:
"""
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
print('[file] not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
if program.find(s) != -1:
print('[special_char] found:', f['name'])
print('[cwe]', cwe, 'done')
def test_get_func() -> None:
"""
除了一些文件没有good函数（只有bad），其他的都是没有参数的good函数
所有的文件都有bad函数，且都没有参数
:return:
"""
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
print('[file] not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
program = program.replace(' \n', '\n')
if program.find('printLine("Calling good()...");') == -1:
print('[func good()] not found:', f['name'])
else:
s_str = 'printLine("Calling good()...");'
e_str = 'printLine("Finished good()");'
start = program.find(s_str) + len(s_str)
end = program.find(e_str)
good_content = [_ for _ in program[start:end].split('\n') if not (_.isspace() or len(_) == 0)][0]
good_content = good_content.replace(';', '')
good_content = good_content.replace(' ', '')
s_str = good_content + '\n{'
start = program.find(s_str) + len(s_str)
end = program.find('\n}', start)
good_func_list = [_ for _ in program[start:end].split('\n') if not (_.isspace() or len(_) == 0)]
good_func_std = [_ for _ in good_func_list if _.find('();') != -1]
if len(good_func_list) != len(good_func_std):
print('[func good()] not standard:', f['name'], good_func_list)
print('[cwe]', cwe, 'done')
def test_remove_win32() -> None:
"""已验证通过
:return:
"""
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
print('[file] not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
program = re.sub(r'(#ifdef _WIN32)(.*?)(#else)(.*?)(#endif)',
lambda match: match.group(4), program, flags=re.DOTALL)
program = re.sub(r'(#ifdef _WIN32)(.*?)(#endif)', '', program, flags=re.DOTALL)
print(program)
def test_std_program(program: str) -> None:
"""自定义变量、函数匿名化
1.查找所有自定义的变量、函数（根据数据类型、返回值类型定位）
2.匹配所有上述变量、函数进行替换（非字母）
3.替换成VAR1,2,3..., FUNC1,2,3...
:param program:
:return:
"""
keywords = {'__asm', '__builtin', '__cdecl', '__declspec', '__except', '__export', '__far16', '__far32',
'__fastcall', '__finally', '__import', '__inline', '__int16', '__int32', '__int64', '__int8',
'__leave', '__optlink', '__packed', '__pascal', '__stdcall', '__system', '__thread', '__try',
'__unaligned', '_asm', '_Builtin', '_Cdecl', '_declspec', '_except', '_Export', '_Far16',
'_Far32', '_Fastcall', '_finally', '_Import', '_inline', '_int16', '_int32', '_int64',
'_int8', '_leave', '_Optlink', '_Packed', '_Pascal', '_stdcall', '_System', '_try', 'alignas',
'alignof', 'and', 'and_eq', 'asm', 'auto', 'bitand', 'bitor', 'bool',
'catch', 'char', 'char16_t', 'char32_t', 'class', 'compl', 'decltype',
'double', 'dynamic_cast', 'enum',
'explicit', 'export', 'extern', 'false', 'final', 'float', 'friend',
'inline', 'int', 'long', 'mutable', 'noexcept', 'nullptr',
'operator', 'or_eq', 'override', 'private', 'protected', 'public', 'register',
'reinterpret_cast', 'return', 'short', 'static_assert',
'static_cast', 'struct', 'template','thread_local', 'throw',
'typedef', 'typeid', 'typename', 'union', 'unsigned', 'virtual', 'void', 'volatile',
'wchar_t', }
for cwe in cwe_cnt.keys():
flaw = extract_cwe_info(cwe)
exist_key = []
for f in flaw:
base_path = '/data/data/ws/sard-parse/C/testcases/' + f['name'][:f['name'].find("__")]
file_path = None
for root, dirs, files in os.walk(base_path):
if f['name'] in files:
file_path = os.path.join(root, f['name'])
if file_path is None:
# print('[file] not exist:', f['name'])
continue
with open(file_path, 'r') as f1:
program = str(f1.read())
program = re.sub(r'(/\*([^*]|(\*+[^*/]))*\*+/)|(//.*)', '', program)
if 'typedef' in program and 'typedef union' not in program and 'typedef struct' not in program:
print(file_path)
print('[cwe]', cwe, exist_key)
test_std_program('')