253 lines
9.0 KiB
C++
253 lines
9.0 KiB
C++
/*
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Copyright 2021 Grégory Soutadé
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This file is part of libgourou.
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libgourou is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libgourou is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with libgourou. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _LIBGOUROU_H_
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#define _LIBGOUROU_H_
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#include "bytearray.h"
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#include "device.h"
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#include "user.h"
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#include "fulfillment_item.h"
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#include "drmprocessorclient.h"
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#include <pugixml.hpp>
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#include <stdint.h>
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#ifndef HOBBES_DEFAULT_VERSION
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#define HOBBES_DEFAULT_VERSION "10.0.4"
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#endif
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#ifndef ACS_SERVER
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#define ACS_SERVER "http://adeactivate.adobe.com/adept"
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#endif
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#define LIBGOUROU_VERSION "0.8.6"
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namespace gourou
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{
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/**
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* @brief Main class that handle all ADEPTS functions (fulfill, download, signIn, activate)
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*/
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class DRMProcessor
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{
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public:
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static const std::string VERSION;
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enum ITEM_TYPE { EPUB=0, PDF };
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/**
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* @brief Main constructor. To be used once all is configured (user has signedIn, device is activated)
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*
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* @param client Client processor
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* @param deviceFile Path of device.xml
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* @param activationFile Path of activation.xml
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* @param deviceKeyFile Path of devicesalt
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*/
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DRMProcessor(DRMProcessorClient* client, const std::string& deviceFile, const std::string& activationFile, const std::string& deviceKeyFile);
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~DRMProcessor();
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/**
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* @brief Fulfill ACSM file to server in order to retrieve ePub fulfillment item
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*
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* @param ACSMFile Path of ACSMFile
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* @param notify Notify server if requested by response
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*
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* @return a FulfillmentItem if all is OK
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*/
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FulfillmentItem* fulfill(const std::string& ACSMFile, bool notify=true);
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/**
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* @brief Once fulfilled, ePub file needs to be downloaded.
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* During this operation, DRM information is added into downloaded file
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*
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* @param item Item from fulfill() method
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* @param path Output file path
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* @param resume false if target file should be truncated, true to try resume download
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*
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* @return Type of downloaded item
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*/
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ITEM_TYPE download(FulfillmentItem* item, std::string path, bool resume=false);
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/**
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* @brief SignIn into ACS Server (required to activate device)
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*
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* @param adobeID AdobeID username
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* @param adobePassword Adobe password
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*/
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void signIn(const std::string& adobeID, const std::string& adobePassword);
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/**
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* @brief Activate newly created device (user must have successfuly signedIn before)
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*/
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void activateDevice();
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/**
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* @brief Return loaned book to server
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*
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* @param loanID Loan ID received during fulfill
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* @param operatorURL URL of operator that loans this book
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* @param notify Notify server if requested by response
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*/
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void returnLoan(const std::string& loanID, const std::string& operatorURL, bool notify=true);
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/**
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* @brief Return default ADEPT directory (ie /home/<user>/.config/adept)
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*/
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static std::string getDefaultAdeptDir(void);
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/**
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* @brief Create a new ADEPT environment (device.xml, devicesalt and activation.xml).
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*
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* @param client Client processor
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* @param randomSerial Always generate a new device (or not)
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* @param dirName Directory where to put generated files (.adept)
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* @param hobbes Override hobbes default version
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* @param ACSServer Override main ACS server (default adeactivate.adobe.com)
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*/
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static DRMProcessor* createDRMProcessor(DRMProcessorClient* client,
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bool randomSerial=false, std::string dirName=std::string(""),
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const std::string& hobbes=std::string(HOBBES_DEFAULT_VERSION),
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const std::string& ACSServer=ACS_SERVER);
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/**
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* @brief Get current log level
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*/
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static int getLogLevel();
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/**
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* @brief Set log level (higher number for verbose output)
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*/
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static void setLogLevel(int logLevel);
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/**
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* Functions used internally, should not be called by user
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*/
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/**
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* @brief Send HTTP (GET or POST) request
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*
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* @param URL HTTP URL
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* @param POSTData POST data if needed, if not set, a GET request is done
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* @param contentType Optional content type of POST Data
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* @param responseHeaders Optional Response headers of HTTP request
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* @param fd Optional File descriptor to write received data
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* @param resume false if target file should be truncated, true to try resume download (works only in combination of a valid fd)
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*
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* @return data of HTTP response
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*/
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ByteArray sendRequest(const std::string& URL, const std::string& POSTData=std::string(), const char* contentType=0, std::map<std::string, std::string>* responseHeaders=0, int fd=0, bool resume=false);
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/**
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* @brief Send HTTP POST request to URL with document as POSTData
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*/
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ByteArray sendRequest(const pugi::xml_document& document, const std::string& url);
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/**
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* @brief In place encrypt data with private device key
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*/
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ByteArray encryptWithDeviceKey(const unsigned char* data, unsigned int len);
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/**
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* @brief In place decrypt data with private device key
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*/
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ByteArray decryptWithDeviceKey(const unsigned char* data, unsigned int len);
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/**
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* @brief Return base64 encoded value of RSA public key
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*/
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std::string serializeRSAPublicKey(void* rsa);
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/**
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* @brief Return base64 encoded value of RSA private key encrypted with private device key
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*/
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std::string serializeRSAPrivateKey(void* rsa);
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/**
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* @brief Export clear private license key into path
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*/
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void exportPrivateLicenseKey(std::string path);
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/**
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* @brief Get current user
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*/
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User* getUser() { return user; }
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/**
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* @brief Get current device
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*/
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Device* getDevice() { return device; }
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/**
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* @brief Get current client
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*/
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DRMProcessorClient* getClient() { return client; }
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/**
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* @brief Remove ADEPT DRM
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* Warning: for PDF format, filenameIn must be different than filenameOut
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*
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* @param filenameIn Input file (with ADEPT DRM)
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* @param filenameOut Output file (without ADEPT DRM)
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* @param type Type of file (ePub or PDF)
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* @param encryptionKey Optional encryption key, do not try to decrypt the one inside input file
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* @param encryptionKeySize Size of encryption key (if provided)
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*/
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void removeDRM(const std::string& filenameIn, const std::string& filenameOut, ITEM_TYPE type, const unsigned char* encryptionKey=0, unsigned encryptionKeySize=0);
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private:
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gourou::DRMProcessorClient* client;
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gourou::Device* device;
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gourou::User* user;
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DRMProcessor(DRMProcessorClient* client);
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void pushString(void* sha_ctx, const std::string& string);
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void pushTag(void* sha_ctx, uint8_t tag);
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void hashNode(const pugi::xml_node& root, void *sha_ctx, std::map<std::string,std::string> nsHash);
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void hashNode(const pugi::xml_node& root, unsigned char* sha_out);
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void signNode(pugi::xml_node& rootNode);
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void addNonce(pugi::xml_node& root);
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void buildAuthRequest(pugi::xml_document& authReq);
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void buildInitLicenseServiceRequest(pugi::xml_document& initLicReq, std::string operatorURL);
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void doOperatorAuth(std::string operatorURL);
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void operatorAuth(std::string operatorURL);
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void buildFulfillRequest(pugi::xml_document& acsmDoc, pugi::xml_document& fulfillReq);
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void buildActivateReq(pugi::xml_document& activateReq);
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void buildReturnReq(pugi::xml_document& returnReq, const std::string& loanID, const std::string& operatorURL);
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ByteArray sendFulfillRequest(const pugi::xml_document& document, const std::string& url);
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void buildSignInRequest(pugi::xml_document& signInRequest, const std::string& adobeID, const std::string& adobePassword, const std::string& authenticationCertificate);
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void fetchLicenseServiceCertificate(const std::string& licenseURL,
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const std::string& operatorURL);
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void buildNotifyReq(pugi::xml_document& returnReq, pugi::xml_node& body);
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void notifyServer(pugi::xml_node& notifyRoot);
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void notifyServer(pugi::xml_document& fulfillReply);
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std::string encryptedKeyFirstPass(pugi::xml_document& rightsDoc, const std::string& encryptedKey, const std::string& keyType);
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void decryptADEPTKey(pugi::xml_document& rightsDoc, unsigned char* decryptedKey, const unsigned char* encryptionKey=0, unsigned encryptionKeySize=0);
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void removeEPubDRM(const std::string& filenameIn, const std::string& filenameOut, const unsigned char* encryptionKey, unsigned encryptionKeySize);
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void generatePDFObjectKey(int version,
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const unsigned char* masterKey, unsigned int masterKeyLength,
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int objectId, int objectGenerationNumber,
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unsigned char* keyOut);
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void removePDFDRM(const std::string& filenameIn, const std::string& filenameOut, const unsigned char* encryptionKey, unsigned encryptionKeySize);
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};
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}
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#endif
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