Forge version list implementation. Needs integration and testing.

logic/lists/ForgeVersionList.cpp

@@ -0,0 +1,200 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ForgeVersionList.h"
+#include <logic/net/DownloadJob.h>
+#include "MultiMC.h"
+
+#include <QtNetwork>
+
+#include <QtXml>
+
+#include <QRegExp>
+
+#define JSON_URL "http://files.minecraftforge.net/minecraftforge/json"
+
+
+ForgeVersionList::ForgeVersionList(QObject* parent): BaseVersionList(parent)
+{
+	
+}
+
+Task *ForgeVersionList::getLoadTask()
+{
+	return new ForgeListLoadTask(this);
+}
+
+bool ForgeVersionList::isLoaded()
+{
+	return m_loaded;
+}
+
+const BaseVersionPtr ForgeVersionList::at(int i) const
+{
+	return m_vlist.at(i);
+}
+
+int ForgeVersionList::count() const
+{
+	return m_vlist.count();
+}
+/*
+bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
+{
+	const BaseVersion & left = *first;
+	const BaseVersion & right = *second;
+	return left > right;
+}
+
+void MinecraftVersionList::sort()
+{
+	beginResetModel();
+	qSort(m_vlist.begin(), m_vlist.end(), cmpVersions);
+	endResetModel();
+}
+*/
+BaseVersionPtr ForgeVersionList::getLatestStable() const
+{
+	return BaseVersionPtr();
+}
+
+void ForgeVersionList::updateListData(QList<BaseVersionPtr > versions)
+{
+	beginResetModel();
+	m_vlist = versions;
+	m_loaded = true;
+	endResetModel();
+	// NOW SORT!!
+	// sort();
+}
+
+void ForgeVersionList::sort()
+{
+	// NO-OP for now
+}
+
+
+ForgeListLoadTask::ForgeListLoadTask(ForgeVersionList* vlist): Task()
+{
+	m_list = vlist;
+}
+
+
+void ForgeListLoadTask::executeTask()
+{
+	auto job = new DownloadJob("Version index");
+	job->add(QUrl(JSON_URL));
+	listJob.reset(job);
+	connect(listJob.data(), SIGNAL(succeeded()), SLOT(list_downloaded()));
+	connect(listJob.data(), SIGNAL(failed()), SLOT(versionFileFailed()));
+	connect(listJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+	listJob->start();
+}
+
+void ForgeListLoadTask::list_downloaded()
+{
+	auto DlJob = listJob->first();
+	auto data = DlJob.dynamicCast<ByteArrayDownload>()->m_data;
+	
+	
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+	DlJob.reset();
+	
+	if (jsonError.error != QJsonParseError::NoError)
+	{
+		emitFailed("Error parsing version list JSON:" + jsonError.errorString());
+		return;
+	}
+
+	if(!jsonDoc.isObject())
+	{
+		emitFailed("Error parsing version list JSON: jsonDoc is not an object");
+		return;
+	}
+	
+	QJsonObject root = jsonDoc.object();
+	
+	// Now, get the array of versions.
+	if(!root.value("builds").isArray())
+	{
+		emitFailed("Error parsing version list JSON: version list object is missing 'builds' array");
+		return;
+	}
+	QJsonArray builds = root.value("builds").toArray();
+	
+	QList<BaseVersionPtr > tempList;
+	for (int i = 0; i < builds.count(); i++)
+	{
+		// Load the version info.
+		if(!builds[i].isObject())
+		{
+			//FIXME: log this somewhere
+			continue;
+		}
+		QJsonObject obj = builds[i].toObject();
+		int build_nr = obj.value("build").toDouble(0);
+		if(!build_nr)
+			continue;
+		QJsonArray files = root.value("files").toArray();
+		QString url, jobbuildver, mcver, buildtype, filename;
+		QString changelog_url, installer_url;
+		bool valid = false;
+		for(int j = 0; j < files.count(); j++)
+		{
+			if(!files[j].isObject())
+				continue;
+			QJsonObject file = files[j].toObject();
+			buildtype = file.value("buildtype").toString();
+			if((buildtype == "client" || buildtype == "universal") && !valid)
+			{
+				mcver = file.value("mcver").toString();
+				url = file.value("url").toString();
+				jobbuildver = file.value("jobbuildver").toString();
+				int lastSlash = url.lastIndexOf('/');
+				filename = url.mid(lastSlash+1);
+				valid = true;
+			}
+			else if(buildtype == "changelog")
+			{
+				QString ext = file.value("ext").toString();
+				if(ext.isEmpty())
+					continue;
+				changelog_url = file.value("url").toString();
+			}
+			else if(buildtype == "installer")
+			{
+				installer_url = file.value("url").toString();
+			}
+		}
+		if(valid)
+		{
+			// Now, we construct the version object and add it to the list.
+			QSharedPointer<ForgeVersion> fVersion(new ForgeVersion());
+			fVersion->universal_url = url;
+			fVersion->changelog_url = changelog_url;
+			fVersion->installer_url = installer_url;
+			fVersion->jobbuildver = jobbuildver;
+			fVersion->mcver = mcver;
+			fVersion->filename = filename;
+			fVersion->m_buildnr = build_nr;
+			tempList.append(fVersion);
+		}
+	}
+	m_list->updateListData(tempList);
+	
+	emitSucceeded();
+	return;
+}