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Update to v10.0.2
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noDRM committed Nov 29, 2021
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15 changes: 14 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -2,6 +2,8 @@

List of changes since the fork of Apprentice Harper's repository:

## Fixes in v10.0.0 (2021-11-17):

- CI testing / linting removed as that always failed anyways. The CI now "just" packages the plugin.
- Support for the Readium LCP DRM (also known as "CARE DRM" or "TEA DRM"). This supports EPUB and PDF files. It does not yet support Readium LCPDF/LPF/LCPA/LCPAU/LCPDI files, as I don't have access to any of these. If you have an LCP-protected file in one of these formats that this plugin does not work with, please open [an issue](https://github.com/noDRM/DeDRM_tools/issues) and attach the file to the report.
- Add new Github issue report form which forces the user to include stuff like their Calibre version to hopefully increase the quality of bug reports.
Expand All @@ -20,4 +22,15 @@ List of changes since the fork of Apprentice Harper's repository:
- Add a more verbose error message when trying to remove DRM from a book with the new, not-yet-cracked version of the Adobe ADEPT DRM.
- Added back support for Python2 (Calibre 2.0+). Only tested with ADEPT (PDF & EPUB) and Readium LCP so far, please open an issue if there's errors with other book types.
- Begin work on removing some kinds of watermarks from files after DRM removal. This isn't tested a lot, and is disabled by default. You can enable it in the plugin settings.
- If you're using the [ACSM Input Plugin / DeACSM](https://www.mobileread.com/forums/showthread.php?t=341975), the encryption key will automatically be extracted from that plugin if necessary.
- If you're using the [ACSM Input Plugin / DeACSM](https://www.mobileread.com/forums/showthread.php?t=341975), the encryption key will automatically be extracted from that plugin if necessary.

## Fixes in v10.0.1 (2021-11-19):

- Hotfix update to fix broken EPUB DRM removal due to a typo.

## Fixes in v10.0.2 (2021-11-29):

- Fix Kindle for Mac key retrieval (merged [apprenticeharper/DeDRM_tools#1936](https://github.com/apprenticeharper/DeDRM_tools/pull/1936) ), fixing #1.
- Fix Adobe key retrieval in case the username has been changed (merged [apprenticeharper/DeDRM_tools#1946](https://github.com/apprenticeharper/DeDRM_tools/pull/1946) ). This should fix the error "failed to decrypt user key key".
- Fix small issue with elibri watermark removal.
- Adobe key name will now contain account email.
3 changes: 2 additions & 1 deletion DeDRM_plugin/__init__.py
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Expand Up @@ -6,7 +6,7 @@
# Copyright © 2021 NoDRM

__license__ = 'GPL v3'
__version__ = '10.0.1'
__version__ = '10.0.2'
__docformat__ = 'restructuredtext en'


Expand Down Expand Up @@ -80,6 +80,7 @@
# 7.2.1 - Whitespace!
# 10.0.0 - First forked version by NoDRM. See CHANGELOG.md for details.
# 10.0.1 - Fixes a bug in the watermark code.
# 10.0.2 - Fix Kindle for Mac & update Adobe key retrieval

"""
Decrypt DRMed ebooks.
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79 changes: 58 additions & 21 deletions DeDRM_plugin/adobekey.py
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@@ -1,8 +1,8 @@
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# adobekey.pyw, version 6.0
# Copyright © 2009-2020 i♥cabbages, Apprentice Harper et al.
# adobekey.pyw, version 7.1
# Copyright © 2009-2021 i♥cabbages, Apprentice Harper et al.

# Released under the terms of the GNU General Public Licence, version 3
# <http://www.gnu.org/licenses/>
Expand All @@ -29,13 +29,14 @@
# 5.9 - moved unicode_argv call inside main for Windows DeDRM compatibility
# 6.0 - Work if TkInter is missing
# 7.0 - Python 3 for calibre 5
# 7.1 - Fix "failed to decrypt user key key" error (read username from registry)

"""
Retrieve Adobe ADEPT user key.
"""

__license__ = 'GPL v3'
__version__ = '7.0'
__version__ = '7.1'

import sys, os, struct, getopt
from base64 import b64decode
Expand Down Expand Up @@ -288,8 +289,13 @@ def __call__(self, *args):

def __del__(self):
if self._buf is not None:
VirtualFree(self._buf)
self._buf = None
try:
VirtualFree(self._buf)
self._buf = None
except TypeError:
# Apparently this sometimes gets cleared on application exit
# Causes a useless exception in the log, so let's just catch and ignore that.
pass

if struct.calcsize("P") == 4:
CPUID0_INSNS = (
Expand Down Expand Up @@ -400,25 +406,40 @@ def adeptkeys():
ktype = winreg.QueryValueEx(plkparent, None)[0]
if ktype != 'credentials':
continue
uuid_name = "Unknown"
uuid_name = ""
for j in range(0, 16):
try:
plkkey = winreg.OpenKey(plkparent, "%04d" % (j,))
except WindowsError:
break
ktype = winreg.QueryValueEx(plkkey, None)[0]
if ktype == 'user':
uuid_name = winreg.QueryValueEx(plkkey, 'value')[0]
if ktype != 'privateLicenseKey':
continue
userkey = winreg.QueryValueEx(plkkey, 'value')[0]
userkey = b64decode(userkey)
aes = AES(keykey)
userkey = aes.decrypt(userkey)
userkey = userkey[26:-ord(userkey[-1:])]
# print ("found " + uuid_name + " key: " + str(userkey))
keys.append(userkey)
names.append(uuid_name[9:])
# Add Adobe UUID to key name
uuid_name = uuid_name + winreg.QueryValueEx(plkkey, 'value')[0][9:] + "_"
if ktype == 'username':
# Add account type & email to key name, if present
try:
uuid_name = uuid_name + winreg.QueryValueEx(plkkey, 'method')[0] + "_"
except:
pass
try:
uuid_name = uuid_name + winreg.QueryValueEx(plkkey, 'value')[0] + "_"
except:
pass
if ktype == 'privateLicenseKey':
userkey = winreg.QueryValueEx(plkkey, 'value')[0]
userkey = b64decode(userkey)
aes = AES(keykey)
userkey = aes.decrypt(userkey)
userkey = userkey[26:-ord(userkey[-1:])]
# print ("found " + uuid_name + " key: " + str(userkey))
keys.append(userkey)

if uuid_name == "":
names.append("Unknown")
else:
names.append(uuid_name[:-1])

if len(keys) == 0:
raise ADEPTError('Could not locate privateLicenseKey')
print("Found {0:d} keys".format(len(keys)))
Expand Down Expand Up @@ -461,16 +482,32 @@ def adeptkeys():
tree = etree.parse(actpath)
adept = lambda tag: '{%s}%s' % (NSMAP['adept'], tag)
expr = '//%s/%s' % (adept('credentials'), adept('privateLicenseKey'))
exprUUID = '//%s/%s' % (adept('credentials'), adept('user'))
userkey = tree.findtext(expr)
userUUID = "Unknown"

exprUUID = '//%s/%s' % (adept('credentials'), adept('user'))
keyName = ""
try:
userUUID = tree.findtext(exprUUID)
keyName = tree.findtext(exprUUID)[9:] + "_"
except:
pass

try:
exprMail = '//%s/%s' % (adept('credentials'), adept('username'))
keyName = keyName + tree.find(exprMail).attrib["method"] + "_"
keyName = keyName + tree.findtext(exprMail) + "_"
except:
pass

if keyName == "":
keyName = "Unknown"
else:
keyName = keyName[:-1]



userkey = b64decode(userkey)
userkey = userkey[26:]
return [userkey], [userUUID[9:]]
return [userkey], [keyName]

else:
def adeptkeys():
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2 changes: 1 addition & 1 deletion DeDRM_plugin/config.py
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Expand Up @@ -832,7 +832,7 @@ def __init__(self, parent=None,):
key_group = QHBoxLayout()
data_group_box_layout.addLayout(key_group)
key_group.addWidget(QLabel("Unique Key Name:", self))
self.key_ledit = QLineEdit(self.default_name_A, self)
self.key_ledit = QLineEdit("default_ade_key_uuid_" + self.default_name_A, self)
self.key_ledit.setToolTip("<p>Enter an identifying name for the current Adobe key. Note that it's recommended to leave the UUID (the random-looking digits and letters) as it is.")
key_group.addWidget(self.key_ledit)

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