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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import argparse
import sys
import pychrysalide
from pychrysalide.analysis.contents import FileContent
from pychrysalide.analysis import LoadedBinary
from pychrysalide.analysis.diffing import BinDiff, FingerprintList
from pychrysalide.format.dex import DexFormat
def display_matches(matches, methods):
"""Show the matching routines."""
routine_a_name_len = len('Routine A')
routine_a_addr_len = len('Phys addr.')
routine_b_name_len = len('Routine B')
routine_b_addr_len = len('Phys addr.')
# Length computing
for match in matches:
routine_name = match['routine'].label
if len(routine_name) > routine_a_name_len:
routine_a_name_len = len(routine_name)
phys = '0x%x' % match['routine'].range.addr.phys
if len(phys) > routine_a_addr_len:
routine_a_addr_len = len(phys)
matching = match['matching']
for i in range(len(matching)):
routine_name = matching[i]['other'].label
if len(routine_name) > routine_b_name_len:
routine_b_name_len = len(routine_name)
phys = '0x%x' % matching[i]['other'].range.addr.phys
if len(phys) > routine_b_addr_len:
routine_b_addr_len = len(phys)
line = ' {:<%u} | {:>%u} | {:<%u} | {:>%u} | {:^%u}' \
% (routine_a_name_len, routine_a_addr_len, routine_b_name_len, routine_b_addr_len, len('Similarity'))
for meth in methods:
length = len(meth.name)
line += ' | {:^%u}' % length
# Columns display
names = []
for meth in methods:
names.append(meth.name)
header = line.format('Routine A', 'Phys addr.', 'Routine B', 'Phys addr.', 'Similarity', *names)
print(header)
print('-' * (len(header) + 2))
# Matches display
for match in matches:
matching = match['matching']
for i in range(len(matching)):
routine_a_name = match['routine'].label if i == 0 else ''
if i == 0:
phys_a = '0x%x' % match['routine'].range.addr.phys
else:
phys_a = ''
routine_b_name = matching[i]['other'].label
if i == 0:
phys_b = '0x%x' % matching[i]['other'].range.addr.phys
else:
phys_b = ''
similarity = '%.2f' % matching[i]['similarity']
values = [ 'X' if v else '' for v in list(matching[i]['values']) ]
print(line.format(routine_a_name, phys_a, routine_b_name, phys_b, similarity, *values))
def display_unmatches(routines):
"""Show the unmatching routines."""
name_len = len('Routine')
addr_len = len('Phys addr.')
# Length computing
for r in routines:
name = r.label
if len(name) > name_len:
name_len = len(name)
phys = '0x%x' % r.range.addr.phys
if len(phys) > addr_len:
addr_len = len(phys)
line = ' {:<%u} | {:>%u}' % (name_len, addr_len)
# Columns display
header = line.format('Routine', 'Phys addr.')
print(header)
print('-' * (len(header) + 2))
# Matches display
for r in routines:
phys = '0x%x' % r.range.addr.phys
print(line.format(r.label, phys))
if __name__ == '__main__':
"""Entry point."""
parser = argparse.ArgumentParser(description='readdex - Displays information about DEX files.', add_help=False)
parser.add_argument('-h', '--help', action='store_true', help='Display the command line options.')
parser.add_argument('dexfile1', type=str, help='The first object file to be examined')
parser.add_argument('dexfile2', type=str, help='The second object file to be examined')
args = parser.parse_args()
if args.help:
parser.print_help()
sys.exit(1)
cnt = FileContent(args.dexfile1)
fmt = DexFormat(cnt)
binary1 = LoadedBinary(fmt)
binary1.analyze_and_wait()
cnt = FileContent(args.dexfile2)
fmt = DexFormat(cnt)
binary2 = LoadedBinary(fmt)
binary2.analyze_and_wait()
fingerlist1 = FingerprintList(None, binary1, True)
print("list 1 ok")
fingerlist2 = FingerprintList(None, binary2, True)
print("list 1 ok")
diff = BinDiff(fingerlist1, fingerlist2)
print("analyzing...")
diff.analyze_and_wait()
print()
matches = diff.single_matches
if len(matches) > 0:
print('Single match routines')
print('=====================')
print()
display_matches(matches, fingerlist1.methods)
print()
matches = diff.multi_matches
if len(matches) > 0:
print('Multi match routines')
print('====================')
print()
display_matches(matches, fingerlist1.methods)
print()
unmatched = diff.first_unmatches
if len(unmatched) > 0:
print('First binary unmatched routines')
print('===============================')
print()
display_unmatches(unmatched)
print()
unmatched = diff.second_unmatches
if len(unmatched) > 0:
print('Second binary unmatched routines')
print('================================')
print()
display_unmatches(unmatched)
print()
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