Get rid of QNAM (now subclassed and less needy). Basic LWJGL download and extraction.

1 files changed, 185 insertions, 0 deletions

diff --git a/backend/LegacyUpdate.cpp b/backend/LegacyUpdate.cpp
new file mode 100644
index 00000000..533be468
--- /dev/null
+++ b/backend/LegacyUpdate.cpp
@@ -0,0 +1,185 @@
+#include "LegacyUpdate.h"
+#include "lists/LwjglVersionList.h"
+#include "BaseInstance.h"
+#include "LegacyInstance.h"
+#include "net/NetWorker.h"
+#include <pathutils.h>
+#include <quazip.h>
+#include <quazipfile.h>
+
+
+LegacyUpdate::LegacyUpdate ( BaseInstance* inst, QObject* parent ) : BaseUpdate ( inst, parent ) {}
+
+void LegacyUpdate::executeTask()
+{
+	lwjglStart();
+}
+
+void LegacyUpdate::lwjglStart()
+{
+	LegacyInstance * inst = (LegacyInstance *) m_inst;
+	auto &list = LWJGLVersionList::get();
+	if(!list.isLoaded())
+	{
+		error("Too soon! Let the LWJGL list load :)");
+		emitEnded();
+		return;
+	}
+	QString lwjglVer =  inst->lwjglVersion();
+	auto version = list.getVersion(lwjglVer);
+	if(!version)
+	{
+		error("Game update failed: the selected LWJGL version is invalid.");
+		emitEnded();
+	}
+	lwjglVersion = version->name();
+	QString url = version->url();
+	
+	auto &worker = NetWorker::spawn();
+	QNetworkRequest req(url);
+	req.setRawHeader("Host", "sourceforge.net");
+	req.setHeader(QNetworkRequest::UserAgentHeader, "Wget/1.14 (linux-gnu)");
+	QNetworkReply * rep = worker.get ( req );
+	
+	m_reply = QSharedPointer<QNetworkReply> (rep, &QObject::deleteLater);
+	connect(rep, SIGNAL(downloadProgress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+	connect(&worker, SIGNAL(finished(QNetworkReply*)), SLOT(lwjglFinished(QNetworkReply*)));
+	//connect(rep, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(downloadError(QNetworkReply::NetworkError)));
+}
+
+void LegacyUpdate::lwjglFinished(QNetworkReply* reply)
+{
+	if(m_reply != reply)
+	{
+		return;
+	}
+	if(reply->error() != QNetworkReply::NoError)
+	{
+		error("Failed to download: " + reply->errorString() + "\nSometimes you have to wait a bit if you download many LWJGL versions in a row. YMMV");
+		emitEnded();
+		return;
+	}
+	auto &worker = NetWorker::spawn();
+	//Here i check if there is a cookie for me in the reply and extract it
+	QList<QNetworkCookie> cookies = qvariant_cast<QList<QNetworkCookie>>(reply->header(QNetworkRequest::SetCookieHeader));
+	if(cookies.count() != 0)
+	{
+		//you must tell which cookie goes with which url
+		worker.cookieJar()->setCookiesFromUrl(cookies, QUrl("sourceforge.net"));
+	}
+
+	//here you can check for the 302 or whatever other header i need
+	QVariant newLoc = reply->header(QNetworkRequest::LocationHeader);
+	if(newLoc.isValid())
+	{
+		auto &worker = NetWorker::spawn();
+		QString redirectedTo = reply->header(QNetworkRequest::LocationHeader).toString();
+		QNetworkRequest req(redirectedTo);
+		req.setRawHeader("Host", "sourceforge.net");
+		req.setHeader(QNetworkRequest::UserAgentHeader, "Wget/1.14 (linux-gnu)");
+		QNetworkReply * rep = worker.get(req);
+		connect(rep, SIGNAL(downloadProgress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+		m_reply = QSharedPointer<QNetworkReply> (rep, &QObject::deleteLater);
+		return;
+	}
+	QFile saveMe("lwjgl.zip");
+	saveMe.open(QIODevice::WriteOnly);
+	saveMe.write(m_reply->readAll());
+	saveMe.close();
+	setStatus("Installing new LWJGL...");
+	extractLwjgl();
+}
+void LegacyUpdate::extractLwjgl()
+{
+	// make sure the directories are there
+	QString lwjgl_base = PathCombine("lwjgl", lwjglVersion );
+	QString nativesPath = PathCombine( lwjgl_base, "natives/");
+	bool success = ensurePathExists(nativesPath);
+	
+	if(!success)
+	{
+		error("Failed to extract the lwjgl libs - error when creating required folders.");
+		emitEnded();
+		return;
+	}
+	
+	QuaZip zip("lwjgl.zip");
+	if(!zip.open(QuaZip::mdUnzip))
+	{
+		error("Failed to extract the lwjgl libs - not a valid archive.");
+		emitEnded();
+		return;
+	}
+	
+	// and now we are going to access files inside it
+	QuaZipFile file(&zip);
+	const QString jarNames[] = { "jinput.jar", "lwjgl_util.jar", "lwjgl.jar" };
+	for(bool more=zip.goToFirstFile(); more; more=zip.goToNextFile())
+	{
+		if(!file.open(QIODevice::ReadOnly))
+		{
+			zip.close();
+			error("Failed to extract the lwjgl libs - error while reading archive.");
+			emitEnded();
+			return;
+		}
+		QuaZipFileInfo info;
+		QString name = file.getActualFileName();
+		if(name.endsWith('/'))
+		{
+			file.close();
+			continue;
+		}
+		QString destFileName;
+		// Look for the jars
+		for (int i = 0; i < 3; i++)
+		{
+			if (name.endsWith(jarNames[i]))
+			{
+				destFileName = PathCombine(lwjgl_base, jarNames[i]);
+			}
+		}
+		// Not found? look for the natives
+		if(destFileName.isEmpty())
+		{
+#ifdef Q_OS_WIN32
+			QString nativesDir = "windows";
+#elif Q_OS_MAC
+			QString nativesDir = "macosx";
+#else
+			QString nativesDir = "linux";
+#endif
+			if (name.contains(nativesDir))
+			{
+				int lastSlash = name.lastIndexOf('/');
+				int lastBackSlash = name.lastIndexOf('/');
+				if(lastSlash != -1)
+					name = name.mid(lastSlash+1);
+				else if(lastBackSlash != -1)
+					name = name.mid(lastBackSlash+1);
+				destFileName = PathCombine(nativesPath, name);
+			}
+		}
+		// Now if destFileName is still empty, go to the next file.
+		if (!destFileName.isEmpty())
+		{
+			setStatus("Installing new LWJGL - Extracting " + name);
+			QFile output(destFileName);
+			output.open(QIODevice::WriteOnly);
+			output.write(file.readAll()); // FIXME: wste of memory!?
+			output.close();
+		}
+		file.close(); // do not forget to close!
+	}
+	zip.close();
+	m_reply.clear();
+	emit gameUpdateComplete();
+	emitEnded();
+}
+
+void LegacyUpdate::lwjglFailed()
+{
+	error("Bad stuff happened while trying to get the lwjgl libs...");
+	emitEnded();
+}
+