RESOURCE_NAME = PLUGIN_NAME + '_Help.htm'
import codecs
-import sys, os, re
+import sys, os
import time
-import zipfile
import traceback
-from zipfile import ZipInfo, ZipFile, ZIP_STORED, ZIP_DEFLATED
-from contextlib import closing
class DeDRMError(Exception):
# This is called after the DRM is removed (or if no DRM was present)
# It does stuff like de-obfuscating fonts (by calling checkFonts)
# or removing watermarks.
- path_to_ebook = self.checkFonts(path_to_ebook)
- path_to_ebook = self.removeCDPwatermarkFromEPUB(path_to_ebook)
- return path_to_ebook
-
- def removeCDPwatermarkFromEPUB(self, path_to_ebook):
- # "META-INF/cdp.info" is a watermark file used by some Tolino vendors.
- # We don't want that in our eBooks, so lets remove that file.
try:
- infile = ZipFile(open(path_to_ebook, 'rb'))
- namelist = infile.namelist()
- if 'META-INF/cdp.info' not in namelist:
- return path_to_ebook
+ import calibre_plugins.dedrm.prefs as prefs
+ dedrmprefs = prefs.DeDRM_Prefs()
- namelist.remove("mimetype")
- namelist.remove("META-INF/cdp.info")
+ if dedrmprefs["deobfuscate_fonts"] is True:
+ # Deobfuscate fonts
+ path_to_ebook = self.checkFonts(path_to_ebook) or path_to_ebook
- output = self.temporary_file(".epub").name
+ if dedrmprefs["remove_watermarks"] is True:
+ import calibre_plugins.dedrm.epubwatermark as watermark
- kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
- with closing(ZipFile(open(output, 'wb'), 'w', **kwds)) as outf:
- for path in (["mimetype"] + namelist):
+ # Remove Tolino's CDP watermark file
+ path_to_ebook = watermark.removeCDPwatermark(self, path_to_ebook) or path_to_ebook
- data = infile.read(path)
+ # Remove watermarks (currently just Amazon) from the OPF file
+ path_to_ebook = watermark.removeOPFwatermarks(self, path_to_ebook) or path_to_ebook
- zi = ZipInfo(path)
- oldzi = infile.getinfo(path)
- try:
- zi.compress_type = oldzi.compress_type
- if path == "mimetype":
- zi.compress_type = ZIP_STORED
- zi.date_time = oldzi.date_time
- zi.comment = oldzi.comment
- zi.extra = oldzi.extra
- zi.internal_attr = oldzi.internal_attr
- zi.external_attr = oldzi.external_attr
- zi.create_system = oldzi.create_system
- if any(ord(c) >= 128 for c in path) or any(ord(c) >= 128 for c in zi.comment):
- # If the file name or the comment contains any non-ASCII char, set the UTF8-flag
- zi.flag_bits |= 0x800
- except:
- pass
-
- outf.writestr(zi, data)
+ # Remove watermarks (currently just Adobe's resource ID) from all HTML and XHTML files
+ path_to_ebook = watermark.removeHTMLwatermarks(self, path_to_ebook) or path_to_ebook
- print("{0} v{1}: Successfully removed cdp.info watermark".format(PLUGIN_NAME, PLUGIN_VERSION))
- return output
+ return path_to_ebook
except:
+ print("Error while checking settings")
return path_to_ebook
def checkFonts(self, path_to_ebook):
# It checks if there's fonts that need to be deobfuscated
try:
- import calibre_plugins.dedrm.prefs as prefs
- dedrmprefs = prefs.DeDRM_Prefs()
-
- if dedrmprefs["deobfuscate_fonts"] is True:
import calibre_plugins.dedrm.epubfontdecrypt as epubfontdecrypt
output = self.temporary_file(".epub").name
else:
print("{0} v{1}: Error during font deobfuscation".format(PLUGIN_NAME, PLUGIN_VERSION))
raise DeDRMError("Font deobfuscation failed")
- else:
- return path_to_ebook
+
except:
print("{0} v{1}: Error during font deobfuscation".format(PLUGIN_NAME, PLUGIN_VERSION))
+ traceback.print_exc()
return path_to_ebook
def ePubDecrypt(self,path_to_ebook):
--- /dev/null
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# epubwatermark.py
+# Copyright © 2021 NoDRM
+
+# Revision history:
+# 1.0 - Initial version
+
+# Released under the terms of the GNU General Public Licence, version 3
+# <http://www.gnu.org/licenses/>
+
+"""
+Removes various watermarks from EPUB files
+"""
+
+import traceback
+from zipfile import ZipInfo, ZipFile, ZIP_STORED, ZIP_DEFLATED
+from contextlib import closing
+from lxml import etree
+import re
+
+# Runs a RegEx over all HTML/XHTML files to remove watermakrs.
+def removeHTMLwatermarks(object, path_to_ebook):
+ try:
+ inf = ZipFile(open(path_to_ebook, 'rb'))
+ namelist = inf.namelist()
+
+ modded_names = []
+ modded_contents = []
+
+ for file in namelist:
+ if not (file.endswith('.html') or file.endswith('.xhtml')):
+ continue
+
+ try:
+ file_str = inf.read(file).decode("utf-8")
+ str_new = file_str
+
+ # Remove Adobe ADEPT watermarks
+ # Match optional newline at the beginning, then a "meta" tag with name = "Adept.expected.resource" or "Adept.resource"
+ # and either a "value" or a "content" element with an Adobe UUID
+ str_new = re.sub(r'((\r\n|\r|\n)\s*)?\<meta\s+name=\"(Adept\.resource|Adept\.expected\.resource)\"\s+(content|value)=\"urn:uuid:[0-9a-fA-F\-]+\"\s*\/>', '', str_new)
+ str_new = re.sub(r'((\r\n|\r|\n)\s*)?\<meta\s+(content|value)=\"urn:uuid:[0-9a-fA-F\-]+\"\s+name=\"(Adept\.resource|Adept\.expected\.resource)\"\s*\/>', '', str_new)
+ except:
+ traceback.print_exc()
+ continue
+
+ if (file_str == str_new):
+ continue
+
+ modded_names.append(file)
+ modded_contents.append(str_new)
+
+ if len(modded_names) == 0:
+ # No file modified, return original
+ return path_to_ebook
+
+ if len(modded_names) != len(modded_contents):
+ # Something went terribly wrong, return original
+ print("Watermark: Error during ADEPT watermark removal")
+ return path_to_ebook
+
+ # Re-package with modified files:
+ namelist.remove("mimetype")
+
+ try:
+ output = object.temporary_file(".epub").name
+ kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
+ with closing(ZipFile(open(output, 'wb'), 'w', **kwds)) as outf:
+ for path in (["mimetype"] + namelist):
+
+ data = inf.read(path)
+
+ try:
+ modded_index = None
+ modded_index = modded_names.index(path)
+ except:
+ pass
+
+ if modded_index is not None:
+ # Found modified file - replace contents
+ data = modded_contents[modded_index]
+
+ zi = ZipInfo(path)
+ oldzi = inf.getinfo(path)
+ try:
+ zi.compress_type = oldzi.compress_type
+ if path == "mimetype":
+ zi.compress_type = ZIP_STORED
+ zi.date_time = oldzi.date_time
+ zi.comment = oldzi.comment
+ zi.extra = oldzi.extra
+ zi.internal_attr = oldzi.internal_attr
+ zi.external_attr = oldzi.external_attr
+ zi.create_system = oldzi.create_system
+ if any(ord(c) >= 128 for c in path) or any(ord(c) >= 128 for c in zi.comment):
+ # If the file name or the comment contains any non-ASCII char, set the UTF8-flag
+ zi.flag_bits |= 0x800
+ except:
+ pass
+
+ outf.writestr(zi, data)
+ except:
+ traceback.print_exc()
+ return path_to_ebook
+
+ except:
+ traceback.print_exc()
+ return path_to_ebook
+
+ print("Watermark: Successfully stripped {0} ADEPT watermark(s) from ebook.".format(len(modded_names)))
+ return output
+
+
+# Finds the main OPF file, then uses RegEx to remove watermarks
+def removeOPFwatermarks(object, path_to_ebook):
+ contNS = lambda tag: '{%s}%s' % ('urn:oasis:names:tc:opendocument:xmlns:container', tag)
+ opf_path = None
+
+ try:
+ inf = ZipFile(open(path_to_ebook, 'rb'))
+ container = etree.fromstring(inf.read("META-INF/container.xml"))
+ rootfiles = container.find(contNS("rootfiles")).findall(contNS("rootfile"))
+ for rootfile in rootfiles:
+ opf_path = rootfile.get("full-path", None)
+ if (opf_path is not None):
+ break
+ except:
+ traceback.print_exc()
+ return path_to_ebook
+
+ # If path is None, we didn't find an OPF, so we probably don't have a font key.
+ # If path is set, it's the path to the main content OPF file.
+
+ if (opf_path is None):
+ # No OPF found - no watermark
+ return path_to_ebook
+ else:
+ try:
+ container_str = inf.read(opf_path).decode("utf-8")
+ container_str_new = container_str
+
+ # Remove Amazon hex watermarks
+ # Match optional newline at the beginning, then spaces, then a "meta" tag with name = "Watermark" or "Watermark_(hex)" and a "content" element.
+ container_str_new = re.sub(r'((\r\n|\r|\n)\s*)?\<meta\s+name=\"Watermark(_\(hex\))?\"\s+content=\"[0-9a-fA-F]+\"\s*\/>', '', container_str_new)
+ container_str_new = re.sub(r'((\r\n|\r|\n)\s*)?\<meta\s+content=\"[0-9a-fA-F]+\"\s+name=\"Watermark(_\(hex\))?\"\s*\/>', '', container_str_new)
+ except:
+ traceback.print_exc()
+ return path_to_ebook
+
+ if (container_str == container_str_new):
+ # container didn't change - no watermark
+ return path_to_ebook
+
+ # Re-package without watermark
+ namelist = inf.namelist()
+ namelist.remove("mimetype")
+
+ try:
+ output = object.temporary_file(".epub").name
+ kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
+ with closing(ZipFile(open(output, 'wb'), 'w', **kwds)) as outf:
+ for path in (["mimetype"] + namelist):
+
+ data = inf.read(path)
+ if path == opf_path:
+ # Found OPF, replacing ...
+ data = container_str_new
+
+ zi = ZipInfo(path)
+ oldzi = inf.getinfo(path)
+ try:
+ zi.compress_type = oldzi.compress_type
+ if path == "mimetype":
+ zi.compress_type = ZIP_STORED
+ zi.date_time = oldzi.date_time
+ zi.comment = oldzi.comment
+ zi.extra = oldzi.extra
+ zi.internal_attr = oldzi.internal_attr
+ zi.external_attr = oldzi.external_attr
+ zi.create_system = oldzi.create_system
+ if any(ord(c) >= 128 for c in path) or any(ord(c) >= 128 for c in zi.comment):
+ # If the file name or the comment contains any non-ASCII char, set the UTF8-flag
+ zi.flag_bits |= 0x800
+ except:
+ pass
+
+ outf.writestr(zi, data)
+ except:
+ traceback.print_exc()
+ return path_to_ebook
+
+ print("Watermark: Successfully stripped Amazon watermark from OPF file.")
+ return output
+
+
+
+def removeCDPwatermark(object, path_to_ebook):
+ # "META-INF/cdp.info" is a watermark file used by some Tolino vendors.
+ # We don't want that in our eBooks, so lets remove that file.
+ try:
+ infile = ZipFile(open(path_to_ebook, 'rb'))
+ namelist = infile.namelist()
+ if 'META-INF/cdp.info' not in namelist:
+ return path_to_ebook
+
+ namelist.remove("mimetype")
+ namelist.remove("META-INF/cdp.info")
+
+ output = object.temporary_file(".epub").name
+
+ kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
+ with closing(ZipFile(open(output, 'wb'), 'w', **kwds)) as outf:
+ for path in (["mimetype"] + namelist):
+
+ data = infile.read(path)
+
+ zi = ZipInfo(path)
+ oldzi = infile.getinfo(path)
+ try:
+ zi.compress_type = oldzi.compress_type
+ if path == "mimetype":
+ zi.compress_type = ZIP_STORED
+ zi.date_time = oldzi.date_time
+ zi.comment = oldzi.comment
+ zi.extra = oldzi.extra
+ zi.internal_attr = oldzi.internal_attr
+ zi.external_attr = oldzi.external_attr
+ zi.create_system = oldzi.create_system
+ if any(ord(c) >= 128 for c in path) or any(ord(c) >= 128 for c in zi.comment):
+ # If the file name or the comment contains any non-ASCII char, set the UTF8-flag
+ zi.flag_bits |= 0x800
+ except:
+ pass
+
+ outf.writestr(zi, data)
+
+ print("Watermark: Successfully removed cdp.info watermark")
+ return output
+
+ except:
+ traceback.print_exc()
+ return path_to_ebook
\ No newline at end of file
projects / DeDRM.git / commitdiff