134 lines
4.2 KiB
C++
134 lines
4.2 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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#include <cctype>
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#include <fulfillment_item.h>
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#include <libgourou_common.h>
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#include "user.h"
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namespace gourou
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{
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FulfillmentItem::FulfillmentItem(pugi::xml_document& doc, User* user)
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: fulfillDoc(), loanToken(0)
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{
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fulfillDoc.reset(doc); /* We must keep a copy */
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metadatas = fulfillDoc.select_node("//metadata").node();
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if (!metadatas)
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EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "No metadata tag in document");
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pugi::xml_node node = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/src").node();
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downloadURL = node.first_child().value();
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if (downloadURL == "")
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EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "No download URL in document");
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node = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/resource").node();
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resource = node.first_child().value();
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if (resource == "")
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EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "No resource in document");
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pugi::xml_node licenseToken = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/licenseToken").node();
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if (!licenseToken)
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EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "Any license token in document");
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buildRights(licenseToken, user);
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node = doc.select_node("/envelope/fulfillmentResult/returnable").node();
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try
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{
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if (node && node.first_child().value() == std::string("true"))
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loanToken = new LoanToken(doc);
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}
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catch(std::exception& e)
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{
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GOUROU_LOG(ERROR, "Book is returnable, but contains invalid loan token");
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GOUROU_LOG(ERROR, e.what());
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}
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}
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FulfillmentItem::~FulfillmentItem()
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{
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if (loanToken) delete loanToken;
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}
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void FulfillmentItem::buildRights(const pugi::xml_node& licenseToken, User* user)
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{
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pugi::xml_node decl = rights.append_child(pugi::node_declaration);
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decl.append_attribute("version") = "1.0";
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pugi::xml_node root = rights.append_child("adept:rights");
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root.append_attribute("xmlns:adept") = ADOBE_ADEPT_NS;
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pugi::xml_node newLicenseToken = root.append_copy(licenseToken);
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if (!newLicenseToken.attribute("xmlns"))
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newLicenseToken.append_attribute("xmlns") = ADOBE_ADEPT_NS;
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pugi::xml_node licenseServiceInfo = root.append_child("adept:licenseServiceInfo");
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pugi::xml_node licenseURL = licenseToken.select_node("licenseURL").node();
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licenseURL.set_name("adept:licenseURL");
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licenseServiceInfo.append_copy(licenseURL);
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pugi::xml_node certificate = licenseServiceInfo.append_child("adept:certificate");
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std::string certificateValue = user->getLicenseServiceCertificate(licenseURL.first_child().value());
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certificate.append_child(pugi::node_pcdata).set_value(certificateValue.c_str());
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}
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std::string FulfillmentItem::getMetadata(std::string name)
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{
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// https://stackoverflow.com/questions/313970/how-to-convert-an-instance-of-stdstring-to-lower-case
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#if __STDC_VERSION__ >= 201112L
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std::transform(name.begin(), name.end(), name.begin(),
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[](unsigned char c){ return std::tolower(c); });
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#else
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std::transform(name.begin(), name.end(), name.begin(), tolower);
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#endif
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name = std::string("dc:") + name;
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pugi::xpath_node path = metadatas.select_node(name.c_str());
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if (!path)
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return "";
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return path.node().first_child().value();
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}
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std::string FulfillmentItem::getRights()
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{
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StringXMLWriter xmlWriter;
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rights.save(xmlWriter, " ");
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return xmlWriter.getResult();
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}
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std::string FulfillmentItem::getDownloadURL()
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{
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return downloadURL;
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}
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std::string FulfillmentItem::getResource()
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{
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return resource;
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}
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LoanToken* FulfillmentItem::getLoanToken()
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{
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return loanToken;
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}
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}
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