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apprenticeharper / DeDRM_tools

DeDRM tools for ebooks
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DRM not removed on some Epub books #1282

Open Ludi3 opened 4 years ago

Ludi3 commented 4 years ago

I have been using the plugin for a while and it generally removes all DRM from epub books. It does not work in this case:

calibre Debug log calibre 4.23 embedded-python: True is64bit: False Windows-10-10.0.19041-SP0 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '10', '10.0.19041') Python 2.7.16+ Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free') Interface language: en_GB Successfully initialized third party plugins: DeDRM (6, 8, 0) calibre 4.23 embedded-python: True is64bit: False Windows-10-10.0.19041-SP0 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '10', '10.0.19041') Python 2.7.16+ Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free') Interface language: en_GB Successfully initialized third party plugins: DeDRM (6, 8, 0) Turning on automatic hidpi scaling devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 81.5518394649 x 81.6428571429 Using calibre Qt style: True [0.00] Starting up... [0.00] Showing splash screen... [0.52] splash screen shown [0.52] Initializing db... [0.53] db initialized [0.53] Constructing main UI... [2.19] main UI initialized... [2.19] Hiding splash screen [145.41] splash screen hidden [145.41] Started up in 145.41 seconds with 126 books DeDRM v6.8.0: Trying to decrypt Harry Potter and the Cursed Child.epub DeDRM v6.8.0: Verifying zip archive integrity DeDRM v6.8.0: Harry Potter and the Cursed Child.epub is a secure Adobe Adept ePub DeDRM v6.8.0: Trying Encryption key default_key Could not decrypt io6g8s.epub because of an exception: Traceback (most recent call last): File "calibre_plugins.dedrm.ineptepub", line 465, in decryptBook File "calibre_plugins.dedrm.ineptepub", line 379, in decrypt File "calibre_plugins.dedrm.ineptepub", line 365, in decompress error: Error -3 while decompressing: invalid stored block lengths

DeDRM v6.8.0: Failed to decrypt with key default_key after 0.6 seconds DeDRM v6.8.0: Looking for new default Adobe Digital Editions Keys after 0.6 seconds Found 1 keys DeDRM v6.8.0: Ultimately failed to decrypt after 0.6 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Running file type plugin DeDRM failed with traceback: Traceback (most recent call last): File "site-packages\calibre\customize\ui.py", line 172, in _run_filetype_plugins File "calibre_plugins.dedrm.init", line 636, in run File "calibre_plugins.dedrm.init", line 407, in ePubDecrypt DeDRMError: DeDRM v6.8.0: Ultimately failed to decrypt after 0.6 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Added Harry Potter and the Cursed Child to db in: 1.6 Added 1 books in 3.4 seconds

ElleKayEm commented 4 years ago

Try 64-bit calibre. But make sure to stick with calibre version 4.23.

Ludi3 commented 4 years ago

Hi there,

still the same:

calibre Debug log calibre 4.23 [64bit] embedded-python: True is64bit: True Windows-10-10.0.19041-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.19041') Python 2.7.16+ Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free') Interface language: en_GB Successfully initialized third party plugins: DeDRM (6, 8, 0) calibre 4.23 [64bit] embedded-python: True is64bit: True Windows-10-10.0.19041-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.19041') Python 2.7.16+ Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free') Interface language: en_GB Successfully initialized third party plugins: DeDRM (6, 8, 0) Turning on automatic hidpi scaling devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 81.5518394649 x 81.6428571429 Using calibre Qt style: True [0.00] Starting up... [0.00] Showing splash screen... [0.50] splash screen shown [0.50] Initializing db... [0.52] db initialized [0.52] Constructing main UI... [1.98] main UI initialized... [2.00] Hiding splash screen [5.19] splash screen hidden [5.20] Started up in 5.20 seconds with 126 books DeDRM v6.8.0: Trying to decrypt Harry Potter and the Cursed Child.epub DeDRM v6.8.0: Verifying zip archive integrity DeDRM v6.8.0: Harry Potter and the Cursed Child.epub is a secure Adobe Adept ePub DeDRM v6.8.0: Trying Encryption key default_key Could not decrypt mrsezo.epub because of an exception: Traceback (most recent call last): File "calibre_plugins.dedrm.ineptepub", line 465, in decryptBook File "calibre_plugins.dedrm.ineptepub", line 379, in decrypt File "calibre_plugins.dedrm.ineptepub", line 365, in decompress error: Error -3 while decompressing: invalid stored block lengths

DeDRM v6.8.0: Failed to decrypt with key default_key after 0.7 seconds DeDRM v6.8.0: Looking for new default Adobe Digital Editions Keys after 0.7 seconds Found 1 keys DeDRM v6.8.0: Ultimately failed to decrypt after 0.9 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Running file type plugin DeDRM failed with traceback: Traceback (most recent call last): File "site-packages\calibre\customize\ui.py", line 172, in _run_filetype_plugins File "calibre_plugins.dedrm.init", line 636, in run File "calibre_plugins.dedrm.init", line 407, in ePubDecrypt DeDRMError: DeDRM v6.8.0: Ultimately failed to decrypt after 0.9 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Added Harry Potter and the Cursed Child to db in: 1.6 Added 1 books in 4.7 seconds Exception TypeError: "'NoneType' object is not callable" in <bound method NativeFunction.del of <calibre_plugins.dedrm.adobekey.NativeFunction object at 0x0000026A80042588>> ignored Exception TypeError: "'NoneType' object is not callable" in <bound method NativeFunction.del of <calibre_plugins.dedrm.adobekey.NativeFunction object at 0x0000026A80042908>> ignored

ElleKayEm commented 4 years ago

The problem seems to be here:

Error -3 while decompressing: invalid stored block lengths

But I don't know how to resolve it. Is the book tied to the same Adobe ID and from a source you've had success decrypting before? Can the book be read in Adobe Digital Editions 2.0.1?

pengtsin commented 4 years ago

FYI ... I filed a bug with Calibre and got this response ... (Calibre 4.23 is the last version that supports DeDRM v6.8.0.)

As of calibre 5, calibre has moved from Python 2 to Python 3, because Python 2 has been end-of-lifed. This means that some third party calibre plugins that have not yet been ported to Python 3 will not work with calibre 5. If you depend on such a plugin, you will have to either:

Wait for the plugin to be ported to Python 3 If you are on windows, you can install the last calibre 4.x release using calibre portable and run the plugin there Downgrade to calibre 4.x until the plugin is ported. You can simply uninstall calibre 5 and install calibre 4.23, doing so will not affect your books or settings.

ElleKayEm commented 4 years ago

@pengtsin That's not the problem here.

Ludi3 commented 4 years ago

I am getting some problems getting the 2.0.1 registered next to the 5.x. I will still try.

But to answer the other part of the question yes, other books from the same source decrypt fine. It's just this one so far.

ElleKayEm commented 4 years ago

Have you tried downloading a fresh copy of the book?

Ludi3 commented 4 years ago

Yes, a couple of times. It looks like it was just this one book. the rest still decrypt fine.

ElleKayEm commented 4 years ago

Seems like @apprenticeharper or someone will need to take a look at this.

ElleKayEm commented 3 years ago

Looks like this might be an enhanced copy of the book. If you unzip the epub, remove audio files, then zip it back up, you may at least be able to decrypt the text.

ElleKayEm commented 3 years ago

Possible solution in issue #1444 .