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apkdiff.py
executable file
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apkdiff.py
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#!/usr/bin/python
import sys
import os
import zipfile
from filecmp import *
from subprocess import call, STDOUT
import shutil
import glob
import re
import argparse
import difflib
import tempfile
ignore = ".*(align|apktool.yml|pak|MF|RSA|SF|bin|so)"
count = 0
args = None
d = difflib.Differ()
class bcolors:
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
OKORANGE = '\033[93m'
FAIL = '\033[91m'
def format(string, col):
return col + string + '\033[0m'
def main():
print("")
print("\t\t\t apktool")
print("")
parser = argparse.ArgumentParser(description='Diff two versions of an APK file.')
parser.add_argument('apk1', metavar='apk1', help='Location of the first APK.')
parser.add_argument('apk2', metavar='apk2', help='Location of the second APK.')
parser.add_argument('-c', '--cleanup', action='store_true', help='Remove all extracted files after computation.')
parser.add_argument('-m', '--meld', action='store_true', help='Open meld to compare directories after.')
parser.add_argument('-o', '--output', default=os.path.join(tempfile.gettempdir(), 'apkdiff'), help='The location to output the extracted files to.')
parser.add_argument('-u', '--unique', action='store_true', help='By default, only differences in common files are printed. If -u is enabled, unique files are printed too')
global args
args = parser.parse_args()
# Make sure the APKs exist.
exists(args.apk1)
exists(args.apk2)
# Check the temporary folder exists & clear it.
folderExists(args.output, True)
# Individual folders for each APK.
temp1 = os.path.join(args.output, "1/")
temp2 = os.path.join(args.output, "2/")
folderExists(temp1, True)
folderExists(temp2, True)
apktoolit(args.apk1, temp1)
apktoolit(args.apk2, temp2)
mergesmalifolders(temp1)
mergesmalifolders(temp2)
compare(os.path.join(temp1, "smali"), os.path.join(temp2, "smali"), args.unique)
# Remove all the stuff we have created.
if args.cleanup and os.path.exists(temp1):
shutil.rmtree(temp1)
if args.cleanup and os.path.exists(temp2):
shutil.rmtree(temp2)
if args.meld:
call(["meld", temp1, temp2])
def apktoolit(file, dir):
print("Running apktool against '" + format(file, bcolors.OKBLUE) + "'")
call(["apktool", "d", "-r", "-f", "-o", dir, file], stdout=open(os.devnull, 'w'), stderr=STDOUT)
print("[" + format("OK", bcolors.OKGREEN) + "]")
def mergesmalifolders(folder):
print("Merging additional smali folders")
target = os.path.join(folder, "smali")
for name in glob.glob(folder + "smali_classes*"):
print("\t" + name + " > " + target)
mergefolders(name, target)
print("[" + format("OK", bcolors.OKGREEN) + "]")
def mergefolders(root_src_dir, root_dst_dir):
for src_dir, dirs, files in os.walk(root_src_dir):
dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1)
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
for file_ in files:
src_file = os.path.join(src_dir, file_)
dst_file = os.path.join(dst_dir, file_)
if os.path.exists(dst_file):
os.remove(dst_file)
shutil.move(src_file, dst_dir)
def compare(folder1, folder2, printunique):
print("")
compared = dircmp(folder1, folder2)
uniqueleft, uniqueright = report_full_closure(compared)
print("\n\t" + format(str(count), bcolors.OKBLUE) + " files are different.\n")
if printunique:
if uniqueleft:
print("[" + format("Only in apk1", bcolors.OKORANGE) + "] ")
for uniquefolder in uniqueleft:
print("\t"+uniquefolder)
print("[" + format("{} unique files in apk1".format(len(uniqueleft)), bcolors.OKORANGE) + "] ")
else:
print("[" + format("No unique files in apk1", bcolors.OKORANGE) + "] ")
if uniqueright:
print("[" + format("Only in apk2", bcolors.OKORANGE) + "] ")
for uniquefolder in uniqueright:
print("\t"+uniquefolder)
print("[" + format("{} unique files in apk2".format(len(uniqueright)), bcolors.OKORANGE) + "] ")
else:
print("[" + format("No unique files in apk2", bcolors.OKORANGE) + "] ")
def getfiles(base, folders, root):
f = []
for folder in folders:
for localroot, subdirs, files in os.walk(os.path.join(base, folder)):
for file in files:
f.append(os.path.relpath(os.path.join(localroot, file), root))
return f
def report_full_closure(self, uniqueleft = [], uniqueright=[], rootcmp=None):
if not rootcmp:
rootcmp = self
uniqueleft += getfiles(self.left, self.left_only, rootcmp.left)
uniqueright += getfiles(self.right, self.right_only, rootcmp.right)
for name in self.diff_files:
if not re.match(ignore, name):
print("[" + format(name, bcolors.OKGREEN) + "] " +
format(self.left.replace(args.output + "1",""), bcolors.OKBLUE))
content1 = reader(os.path.join(self.left, name)).splitlines(1)
content2 = reader(os.path.join(self.right, name)).splitlines(1)
diff = difflib.unified_diff(content1, content2)
tidy(list(diff))
global count
count += 1
for sd in self.subdirs.values():
report_full_closure(sd, uniqueleft, uniqueright, rootcmp)
return uniqueleft, uniqueright
def tidy(lines):
sorted = ""
for line in lines:
if line[:1] == "+":
line = format(line, bcolors.OKGREEN)
elif line[:1] == "-":
line = format(line, bcolors.FAIL)
sorted += line
print(sorted)
def reader(file):
f = open(file, 'r', encoding='utf8', errors='ignore')
data = f.read()
f.close()
return data
def folderExists(path, clean=False):
if clean and os.path.exists(path):
shutil.rmtree(path)
os.makedirs(path)
def exists(file):
if not os.path.isfile(file):
print(format("'{}' does not exist.".format(file), bcolors.FAIL))
exit(0)
if __name__ == '__main__':
main()