153 lines
4.0 KiB
Markdown
153 lines
4.0 KiB
Markdown
Introduction
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------------
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libgourou is a free implementation of Adobe's ADEPT protocol used to add DRM on ePub/PDF files. It overcomes the lack of Adobe support for Linux platforms.
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Architecture
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------------
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Like RMSDK, libgourou has a client/server scheme. All platform specific functions (crypto, network...) have to be implemented in a client class (that derives from DRMProcessorClient) while server implements ADEPT protocol.
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A reference implementation using cURL, OpenSSL and libzip is provided (in _utils_ directory).
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Main functions to use from gourou::DRMProcessor are:
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* Get an ePub from an ACSM file : _fulfill()_ and _download()_
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* Create a new device : _createDRMProcessor()_
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* Register a new device : _signIn()_ and _activateDevice()_
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* Remove DRM : _removeDRM()_
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* Return loaned book : _returnLoan()_
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You can import configuration from (at least):
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* Kobo device : .adept/device.xml, .adept/devicesalt and .adept/activation.xml
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* Bookeen device : .adobe-digital-editions/device.xml, root/devkey.bin and .adobe-digital-editions/activation.xml
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Or create a new one. Be careful: there is a limited number of devices that can be created by one account.
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ePub are encrypted using a shared key: one account / multiple devices, so you can create and register a device into your computer and read downloaded (and encrypted) ePub file with your eReader configured using the same AdobeID account.
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For those who want to remove DRM without adept_remove, you can export your private key and import it within [Calibre](https://calibre-ebook.com/) an its DeDRM plugin.
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Dependencies
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------------
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For libgourou:
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_externals_ :
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* libpugixml
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_internals_:
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* uPDFParser
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For utils:
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* libcurl
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* OpenSSL
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* libzip
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* libpugixml
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Internal libraries are automatically fetched and statically compiled during the first run.
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When you update libgourou's repository, **don't forget to update internal libraries** with:
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make update_lib
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Compilation
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-----------
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Use _make_ command
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make [CROSS=XXX] [DEBUG=(0*|1)] [STATIC_UTILS=(0*|1)] [BUILD_UTILS=(0|1*)] [BUILD_STATIC=(0*|1)] [BUILD_SHARED=(0|1*)] [all*|clean|ultraclean|build_utils|install|uninstall]
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CROSS can define a cross compiler prefix (ie arm-linux-gnueabihf-)
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DEBUG can be set to compile in DEBUG mode
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BUILD_UTILS to build utils or not
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STATIC_UTILS to build utils with static library (libgourou.a) instead of default dynamic one (libgourou.so)
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BUILD_STATIC build libgourou.a if 1, nothing if 0, can be combined with BUILD_SHARED
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BUILD_SHARED build libgourou.so if 1, nothing if 0, can be combined with BUILD_STATIC
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other variables are DESTDIR and PREFIX to handle destination install directory
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* Default value
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Utils
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-----
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First, add libgourou.so to your LD_LIBRARY_PATH
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
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You can optionaly specify your .adept directory
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export ADEPT_DIR=/home/XXX
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Then, use utils as following:
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You can import configuration from your eReader or create a new one with _utils/adept\_activate_:
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./utils/adept_activate -u <AdobeID USERNAME>
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Then a _/home/<user>/.config/adept_ directory is created with all configuration file
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To download an ePub/PDF:
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./utils/acsmdownloader <ACSM_FILE>
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To export your private key (for DeDRM software):
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./utils/acsmdownloader --export-private-key [-o adobekey_1.der]
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To remove ADEPT DRM:
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./utils/adept_remove <encryptedFile>
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To list loaned books:
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./utils/adept_loan_mgt [-l]
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To return a loaned book:
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./utils/adept_loan_mgt -r <id>
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You can get utils full options description with -h or --help switch
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Docker
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------
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A docker image (by bcliang) is available at [https://github.com/bcliang/docker-libgourou/](https://github.com/bcliang/docker-libgourou/)
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Copyright
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---------
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Grégory Soutadé
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License
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-------
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libgourou : LGPL v3 or later
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utils : BSD
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Special thanks
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--------------
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* _Jens_ for all test samples and utils testing
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* _Milian_ for debug & code
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* _Berwyn H_ for all test samples, feedbacks, patches and kind donation
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