Initial commit

src/fulfillment_item.cpp

@@ -0,0 +1,91 @@
+/*
+  Copyright 2021 Grégory Soutadé
+
+  This file is part of libgourou.
+
+  libgourou is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  libgourou is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with libgourou.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <fulfillment_item.h>
+#include <libgourou_common.h>
+#include "user.h"
+
+namespace gourou
+{
+    FulfillmentItem::FulfillmentItem(pugi::xml_document& doc, User* user)
+    {
+	metadatas = doc.select_node("//metadata").node();
+
+	if (!metadatas)
+	    EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "No metadata tag in document");
+	
+	pugi::xml_node node = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/src").node();
+	downloadURL = node.first_child().value();
+
+	if (downloadURL == "")
+	    EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "No download URL in document");
+	
+	pugi::xml_node licenseToken = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/licenseToken").node();
+
+	if (!licenseToken)
+	    EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "Any license token in document");
+	
+	buildRights(licenseToken, user);
+    }
+
+    void FulfillmentItem::buildRights(const pugi::xml_node& licenseToken, User* user)
+    {
+	pugi::xml_node decl = rights.append_child(pugi::node_declaration);
+	decl.append_attribute("version") = "1.0";
+	
+	pugi::xml_node root = rights.append_child("adept:rights");
+	root.append_attribute("xmlns:adept") = ADOBE_ADEPT_NS;
+	
+	pugi::xml_node newLicenseToken = root.append_copy(licenseToken);
+	if (!newLicenseToken.attribute("xmlns"))
+	    newLicenseToken.append_attribute("xmlns") = ADOBE_ADEPT_NS;
+	
+	pugi::xml_node licenseServiceInfo = root.append_child("licenseServiceInfo");
+	licenseServiceInfo.append_attribute("xmlns") = ADOBE_ADEPT_NS;
+	licenseServiceInfo.append_copy(licenseToken.select_node("licenseURL").node());
+	pugi::xml_node certificate = licenseServiceInfo.append_child("certificate");
+	certificate.append_child(pugi::node_pcdata).set_value(user->getCertificate().c_str());
+    }
+    
+    std::string FulfillmentItem::getMetadata(std::string name)
+    {
+	// https://stackoverflow.com/questions/313970/how-to-convert-an-instance-of-stdstring-to-lower-case
+	std::transform(name.begin(), name.end(), name.begin(),
+		       [](unsigned char c){ return std::tolower(c); });
+	name = std::string("dc:") + name;
+	pugi::xpath_node path = metadatas.select_node(name.c_str());
+
+	if (!path)
+	    return "";
+
+	return path.node().first_child().value();
+    }
+    
+    std::string FulfillmentItem::getRights()
+    {
+	StringXMLWriter xmlWriter;
+	rights.save(xmlWriter, "  ");
+	return xmlWriter.getResult();
+    }
+   
+    std::string FulfillmentItem::getDownloadURL()
+    {
+	return downloadURL;
+    }
+}