noDRM_DeDRM_tools/DeDRM_plugin/wineutils.py
Ivan Lazar Miljenovic ef59e112c1 Set PYTHONPATH="" when running through wine
Without this, it's possible for the Linux PYTHONPATH to leak through
and mixing up the PyCrypto libraries being called (or possibly
exceeding the allowed length of the PYTHONPATH in wine).
2020-10-27 13:34:16 +08:00

73 lines
3.2 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
__license__ = 'GPL v3'
# Standard Python modules.
import os, sys, re, hashlib, traceback
from calibre_plugins.dedrm.__init__ import PLUGIN_NAME, PLUGIN_VERSION
def WineGetKeys(scriptpath, extension, wineprefix=""):
import subprocess
from subprocess import Popen, PIPE, STDOUT
import subasyncio
from subasyncio import Process
if extension == ".k4i":
import json
basepath, script = os.path.split(scriptpath)
print("{0} v{1}: Running {2} under Wine".format(PLUGIN_NAME, PLUGIN_VERSION, script))
outdirpath = os.path.join(basepath, "winekeysdir")
if not os.path.exists(outdirpath):
os.makedirs(outdirpath)
if wineprefix != "":
wineprefix = os.path.abspath(os.path.expanduser(os.path.expandvars(wineprefix)))
if wineprefix != "" and os.path.exists(wineprefix):
cmdline = "PYTHONPATH=\"\" WINEPREFIX=\"{2}\" wine python.exe \"{0}\" \"{1}\"".format(scriptpath,outdirpath,wineprefix)
else:
cmdline = "PYTHONPATH=\"\" wine python.exe \"{0}\" \"{1}\"".format(scriptpath,outdirpath)
print("{0} v{1}: Command line: '{2}'".format(PLUGIN_NAME, PLUGIN_VERSION, cmdline))
try:
cmdline = cmdline.encode(sys.getfilesystemencoding())
p2 = Process(cmdline, shell=True, bufsize=1, stdin=None, stdout=sys.stdout, stderr=STDOUT, close_fds=False)
result = p2.wait("wait")
except Exception as e:
print("{0} v{1}: Wine subprocess call error: {2}".format(PLUGIN_NAME, PLUGIN_VERSION, e.args[0]))
if wineprefix != "" and os.path.exists(wineprefix):
cmdline = "PYTHONPATH=\"\" WINEPREFIX=\"{2}\" wine C:\\Python27\\python.exe \"{0}\" \"{1}\"".format(scriptpath,outdirpath,wineprefix)
else:
cmdline = "PYTHONPATH=\"\" wine C:\\Python27\\python.exe \"{0}\" \"{1}\"".format(scriptpath,outdirpath)
print("{0} v{1}: Command line: “{2}".format(PLUGIN_NAME, PLUGIN_VERSION, cmdline))
try:
cmdline = cmdline.encode(sys.getfilesystemencoding())
p2 = Process(cmdline, shell=True, bufsize=1, stdin=None, stdout=sys.stdout, stderr=STDOUT, close_fds=False)
result = p2.wait("wait")
except Exception as e:
print("{0} v{1}: Wine subprocess call error: {2}".format(PLUGIN_NAME, PLUGIN_VERSION, e.args[0]))
# try finding winekeys anyway, even if above code errored
winekeys = []
# get any files with extension in the output dir
files = [f for f in os.listdir(outdirpath) if f.endswith(extension)]
for filename in files:
try:
fpath = os.path.join(outdirpath, filename)
with open(fpath, 'rb') as keyfile:
if extension == ".k4i":
new_key_value = json.loads(keyfile.read())
else:
new_key_value = keyfile.read()
winekeys.append(new_key_value)
except:
print("{0} v{1}: Error loading file {2}".format(PLUGIN_NAME, PLUGIN_VERSION, filename))
traceback.print_exc()
os.remove(fpath)
print("{0} v{1}: Found and decrypted {2} {3}".format(PLUGIN_NAME, PLUGIN_VERSION, len(winekeys), "key file" if len(winekeys) == 1 else "key files"))
return winekeys