def open_binary()

in src/ab/keys/data.py [0:0]

• 35 lines of code
• 8 McCabe index (conditional complexity)

def open_binary(infile, force=False):
    """
    返回解压后的二进制流
    :param infile:
    :param passw_fun():
    :param encode:
    :return:
    """
    if os.path.exists(infile):
        f = open(infile, "rb")
        max_bytes = 2 ** 31 - 1
        bytes_in = bytearray(0)
        input_size = os.path.getsize(infile)
        if input_size > max_bytes:
            raise AlgorithmException(data="the file is too large! {}".format(infile))
        with open(infile, 'rb') as f_in:
            for _ in range(0, input_size, max_bytes):
                bytes_in += f_in.read(max_bytes)
        yield bytes_in
        f.close()
    else:
        sec_file_path = infile + SEC_FILE_POSTFIX
        if os.path.exists(sec_file_path):
            if force:
                outputfile = force_open(sec_file_path)

                f = open(outputfile, "rb")
                max_bytes = 2 ** 31 - 1
                bytes_in = bytearray(0)
                input_size = os.path.getsize(outputfile)
                if input_size > max_bytes:
                    raise AlgorithmException(data="the file is too large! {}".format(outputfile))
                with open(outputfile, 'rb') as f_in:
                    for _ in range(0, input_size, max_bytes):
                        bytes_in += f_in.read(max_bytes)
                yield bytes_in
                f.close()
            else:
                byte_io = decrypt_to_memory(sec_file_path)
                yield byte_io.getvalue()
                byte_io.close()
        else:
            raise AlgorithmException(data="file doesn't exist {}".format(sec_file_path))