system.new.dat.br和system.new.dat解包工具

#!/usr/bin/env python # -*- coding: utf-8 -*- #==================================================== # FILE: sdat2img.py # AUTHORS: xpirt - luxi78 - howellzhu # DATE: 2016-07-23 10:59:46 CST #==================================================== import sys, os, errno try: TRANSFER_LIST_FILE = str(sys.argv[1]) NEW_DATA_FILE = str(sys.argv[2]) except IndexError: print('\nUsage: sdat2img.py <transfer_list> <system_new_file> [system_img]\n') print(' <transfer_list>: transfer list file') print(' <system_new_file>: system new dat file') print(' [system_img]: output system image\n\n') print('Visit xda thread for more information.\n') try: input = raw_input except NameError: pass input('Press ENTER to exit...') sys.exit() try: OUTPUT_IMAGE_FILE = str(sys.argv[3]) except IndexError: OUTPUT_IMAGE_FILE = 'system.img' BLOCK_SIZE = 4096 def rangeset(src): src_set = src.split(',') num_set = [int(item) for item in src_set] if len(num_set) != num_set[0]+1: print('Error on parsing following data to rangeset:\n%s' % src) sys.exit(1) return tuple ([ (num_set[i], num_set[i+1]) for i in range(1, len(num_set), 2) ]) def parse_transfer_list_file(path): trans_list = open(TRANSFER_LIST_FILE, 'r') # Transfer list file version # - version 1: android 5.0.x # - version 2: android 5.1.x # - version 3: android 6.0.x version = int(trans_list.readline()) # Total number of blocks new_blocks = int(trans_list.readline()) # Skip next 2 lines, we don't need that stuff now if version >= 2: trans_list.readline() trans_list.readline() commands = [] for line in trans_list: line = line.split(' ') cmd = line[0] if cmd in ['erase', 'new', 'zero']: commands.append([cmd, rangeset(line[1])]) else: # Skip lines starting with numbers, they are not commands anyway if not cmd[0].isdigit(): print('Command "%s" is not valid.' % cmd) trans_list.close() sys.exit(1) trans_list.close() return version, new_blocks, commands def main(argv): version, new_blocks, commands = parse_transfer_list_file(TRANSFER_LIST_FILE) # Don't clobber existing files to avoid accidental data loss try: output_img = open(OUTPUT_IMAGE_FILE, 'wb') except IOError as e: if e.errno == errno.EEXIST: print('Error: the output file "{}" already exists'.format(e.filename)) print('Remove it, rename it, or choose a different file name.') sys.exit(e.errno) else: raise new_data_file = open(NEW_DATA_FILE, 'rb') all_block_sets = [i for command in commands for i in command[1]] max_file_size = max(pair[1] for pair in all_block_sets)*BLOCK_SIZE for command in commands: if command[0] == 'new': for block in command[1]: begin = block[0] end = block[1] block_count = end - begin print('Copying {} blocks into position {}...'.format(block_count, begin)) # Position output file output_img.seek(begin*BLOCK_SIZE) # Copy one block at a time while(block_count > 0): output_img.write(new_data_file.read(BLOCK_SIZE)) block_count -= 1 else: print('Skipping command %s' % command[0]) # Make file larger if necessary if(output_img.tell() < max_file_size): output_img.truncate(max_file_size) output_img.close() new_data_file.close() print('\nDone! Output image: %s' % os.path.realpath(output_img.name)) if __name__ == '__main__': main(sys.argv)