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Ton of PDF DeDRM updates

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- Support "Standard" and "Adobe.APS" encryptions
- Support decrypting with owner password instead of user password
- New function to return encryption filter name
- Support for V=5, R=5 and R=6 PDF files
- Support for AES256-encrypted PDF files
- Disable broken cross-reference streams in output
This commit is contained in:
NoDRM
2021-12-27 10:45:12 +01:00
parent 23a454205a
commit fbe9b5ea89
6 changed files with 513 additions and 77 deletions
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62
DeDRM_plugin/config.py
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@@ -90,6 +90,7 @@ class ConfigWidget(QWidget):
self.tempdedrmprefs['deobfuscate_fonts'] = self.dedrmprefs['deobfuscate_fonts']
self.tempdedrmprefs['remove_watermarks'] = self.dedrmprefs['remove_watermarks']
self.tempdedrmprefs['lcp_passphrases'] = list(self.dedrmprefs['lcp_passphrases'])
self.tempdedrmprefs['adobe_pdf_passphrases'] = list(self.dedrmprefs['adobe_pdf_passphrases'])
# Start Qt Gui dialog layout
layout = QVBoxLayout(self)
@@ -122,7 +123,7 @@ class ConfigWidget(QWidget):
self.kindle_android_button.clicked.connect(self.kindle_android)
self.kindle_serial_button = QtGui.QPushButton(self)
self.kindle_serial_button.setToolTip(_("Click to manage eInk Kindle serial numbers for Kindle ebooks"))
self.kindle_serial_button.setText("eInk Kindle ebooks")
self.kindle_serial_button.setText("Kindle eInk ebooks")
self.kindle_serial_button.clicked.connect(self.kindle_serials)
self.kindle_key_button = QtGui.QPushButton(self)
self.kindle_key_button.setToolTip(_("Click to manage keys for Kindle for Mac/PC ebooks"))
@@ -144,14 +145,23 @@ class ConfigWidget(QWidget):
self.lcp_button.setToolTip(_("Click to manage passphrases for Readium LCP ebooks"))
self.lcp_button.setText("Readium LCP ebooks")
self.lcp_button.clicked.connect(self.readium_lcp_keys)
self.pdf_keys_button = QtGui.QPushButton(self)
self.pdf_keys_button.setToolTip(_("Click to manage PDF file passphrases"))
self.pdf_keys_button.setText("Adobe PDF passwords")
self.pdf_keys_button.clicked.connect(self.pdf_passphrases)
button_layout.addWidget(self.kindle_serial_button)
button_layout.addWidget(self.kindle_android_button)
button_layout.addWidget(self.kindle_key_button)
button_layout.addSpacing(15)
button_layout.addWidget(self.adept_button)
button_layout.addWidget(self.bandn_button)
button_layout.addWidget(self.pdf_keys_button)
button_layout.addSpacing(15)
button_layout.addWidget(self.mobi_button)
button_layout.addWidget(self.ereader_button)
button_layout.addWidget(self.adept_button)
button_layout.addWidget(self.kindle_key_button)
button_layout.addWidget(self.lcp_button)
self.chkFontObfuscation = QtGui.QCheckBox(_("Deobfuscate EPUB fonts"))
self.chkFontObfuscation.setToolTip("Deobfuscates fonts in EPUB files after DRM removal")
@@ -207,6 +217,10 @@ class ConfigWidget(QWidget):
d = ManageKeysDialog(self,"Readium LCP passphrase",self.tempdedrmprefs['lcp_passphrases'], AddLCPKeyDialog)
d.exec_()
def pdf_passphrases(self):
d = ManageKeysDialog(self,"PDF passphrase",self.tempdedrmprefs['adobe_pdf_passphrases'], AddPDFPassDialog)
d.exec_()
def help_link_activated(self, url):
def get_help_file_resource():
# Copy the HTML helpfile to the plugin directory each time the
@@ -232,6 +246,7 @@ class ConfigWidget(QWidget):
self.dedrmprefs.set('deobfuscate_fonts', self.chkFontObfuscation.isChecked())
self.dedrmprefs.set('remove_watermarks', self.chkRemoveWatermarks.isChecked())
self.dedrmprefs.set('lcp_passphrases', self.tempdedrmprefs['lcp_passphrases'])
self.dedrmprefs.set('adobe_pdf_passphrases', self.tempdedrmprefs['adobe_pdf_passphrases'])
self.dedrmprefs.writeprefs()
def load_resource(self, name):
@@ -1480,3 +1495,44 @@ class AddLCPKeyDialog(QDialog):
errmsg = "Please enter your LCP passphrase or click Cancel in the dialog."
return error_dialog(None, "{0} {1}".format(PLUGIN_NAME, PLUGIN_VERSION), errmsg, show=True, show_copy_button=False)
QDialog.accept(self)
class AddPDFPassDialog(QDialog):
def __init__(self, parent=None,):
QDialog.__init__(self, parent)
self.parent = parent
self.setWindowTitle("{0} {1}: Add new PDF passphrase".format(PLUGIN_NAME, PLUGIN_VERSION))
layout = QVBoxLayout(self)
self.setLayout(layout)
data_group_box = QGroupBox("", self)
layout.addWidget(data_group_box)
data_group_box_layout = QVBoxLayout()
data_group_box.setLayout(data_group_box_layout)
key_group = QHBoxLayout()
data_group_box_layout.addLayout(key_group)
key_group.addWidget(QLabel("PDF password:", self))
self.key_ledit = QLineEdit("", self)
self.key_ledit.setToolTip("Enter the PDF file password.")
key_group.addWidget(self.key_ledit)
self.button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
self.button_box.accepted.connect(self.accept)
self.button_box.rejected.connect(self.reject)
layout.addWidget(self.button_box)
self.resize(self.sizeHint())
@property
def key_name(self):
return None
@property
def key_value(self):
return str(self.key_ledit.text())
def accept(self):
if len(self.key_value) == 0 or self.key_value.isspace():
errmsg = "Please enter a PDF password or click Cancel in the dialog."
return error_dialog(None, "{0} {1}".format(PLUGIN_NAME, PLUGIN_VERSION), errmsg, show=True, show_copy_button=False)
QDialog.accept(self)