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LCP support

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NoDRM
2021-11-17 21:53:24 +01:00
parent 05e0d0bedb
commit a44b50d1d8
16 changed files with 218 additions and 55 deletions
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11
DeDRM_plugin/epubfontdecrypt.py
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@@ -148,7 +148,6 @@ def decryptFontsBook(inpath, outpath):
with closing(ZipFile(open(inpath, 'rb'))) as inf:
namelist = inf.namelist()
if 'META-INF/encryption.xml' not in namelist:
print("{0:s} has no obfuscated fonts".format(os.path.basename(inpath)))
return 1
# Font key handling:
@@ -173,7 +172,7 @@ def decryptFontsBook(inpath, outpath):
# If path is set, it's the path to the main content OPF file.
if (path is None):
print("No OPF for font obfuscation found")
print("FontDecrypt: No OPF for font obfuscation found")
return 1
else:
packageNS = lambda tag: '{%s}%s' % ('http://www.idpf.org/2007/opf', tag)
@@ -185,7 +184,7 @@ def decryptFontsBook(inpath, outpath):
container = []
## IETF font key algorithm:
print("Checking {0} for IETF font obfuscation keys ... ".format(path), end='')
print("FontDecrypt: Checking {0} for IETF font obfuscation keys ... ".format(path), end='')
secret_key_name = None
try:
secret_key_name = container.get("unique-identifier")
@@ -216,7 +215,7 @@ def decryptFontsBook(inpath, outpath):
print("not found")
## Adobe font key algorithm
print("Checking {0} for Adobe font obfuscation keys ... ".format(path), end='')
print("FontDecrypt: Checking {0} for Adobe font obfuscation keys ... ".format(path), end='')
try:
metadata = container.find(packageNS("metadata"))
@@ -284,7 +283,7 @@ def decryptFontsBook(inpath, outpath):
# Check if there's still other entries not related to fonts
if (decryptor.check_if_remaining()):
data = decryptor.get_xml()
print("There's remaining entries in encryption.xml, adding file ...")
print("FontDecrypt: There's remaining entries in encryption.xml, adding file ...")
else:
# No remaining entries, no need for that file.
continue
@@ -313,7 +312,7 @@ def decryptFontsBook(inpath, outpath):
else:
outf.writestr(zi, decryptor.decrypt(path, data))
except:
print("Could not decrypt fonts in {0:s} because of an exception:\n{1:s}".format(os.path.basename(inpath), traceback.format_exc()))
print("FontDecrypt: Could not decrypt fonts in {0:s} because of an exception:\n{1:s}".format(os.path.basename(inpath), traceback.format_exc()))
traceback.print_exc()
return 2
return 0