NOISSUE Flatten gui and logic libraries into MultiMC

1 files changed, 115 insertions, 0 deletions

diff --git a/launcher/net/FileSink.cpp b/launcher/net/FileSink.cpp
new file mode 100644
index 00000000..8b3e917d
--- /dev/null
+++ b/launcher/net/FileSink.cpp
@@ -0,0 +1,115 @@
+#include "FileSink.h"
+#include <QFile>
+#include <QFileInfo>
+#include "Env.h"
+#include "FileSystem.h"
+
+namespace Net {
+
+FileSink::FileSink(QString filename)
+    :m_filename(filename)
+{
+    // nil
+}
+
+FileSink::~FileSink()
+{
+    // nil
+}
+
+JobStatus FileSink::init(QNetworkRequest& request)
+{
+    auto result = initCache(request);
+    if(result != Job_InProgress)
+    {
+        return result;
+    }
+    // create a new save file and open it for writing
+    if (!FS::ensureFilePathExists(m_filename))
+    {
+        qCritical() << "Could not create folder for " + m_filename;
+        return Job_Failed;
+    }
+    wroteAnyData = false;
+    m_output_file.reset(new QSaveFile(m_filename));
+    if (!m_output_file->open(QIODevice::WriteOnly))
+    {
+        qCritical() << "Could not open " + m_filename + " for writing";
+        return Job_Failed;
+    }
+
+    if(initAllValidators(request))
+        return Job_InProgress;
+    return Job_Failed;
+}
+
+JobStatus FileSink::initCache(QNetworkRequest &)
+{
+    return Job_InProgress;
+}
+
+JobStatus FileSink::write(QByteArray& data)
+{
+    if (!writeAllValidators(data) || m_output_file->write(data) != data.size())
+    {
+        qCritical() << "Failed writing into " + m_filename;
+        m_output_file->cancelWriting();
+        m_output_file.reset();
+        wroteAnyData = false;
+        return Job_Failed;
+    }
+    wroteAnyData = true;
+    return Job_InProgress;
+}
+
+JobStatus FileSink::abort()
+{
+    m_output_file->cancelWriting();
+    failAllValidators();
+    return Job_Failed;
+}
+
+JobStatus FileSink::finalize(QNetworkReply& reply)
+{
+    bool gotFile = false;
+    QVariant statusCodeV = reply.attribute(QNetworkRequest::HttpStatusCodeAttribute);
+    bool validStatus = false;
+    int statusCode = statusCodeV.toInt(&validStatus);
+    if(validStatus)
+    {
+        // this leaves out 304 Not Modified
+        gotFile = statusCode == 200 || statusCode == 203;
+    }
+    // if we wrote any data to the save file, we try to commit the data to the real file.
+    // if it actually got a proper file, we write it even if it was empty
+    if (gotFile || wroteAnyData)
+    {
+        // ask validators for data consistency
+        // we only do this for actual downloads, not 'your data is still the same' cache hits
+        if(!finalizeAllValidators(reply))
+            return Job_Failed;
+        // nothing went wrong...
+        if (!m_output_file->commit())
+        {
+            qCritical() << "Failed to commit changes to " << m_filename;
+            m_output_file->cancelWriting();
+            return Job_Failed;
+        }
+    }
+    // then get rid of the save file
+    m_output_file.reset();
+
+    return finalizeCache(reply);
+}
+
+JobStatus FileSink::finalizeCache(QNetworkReply &)
+{
+    return Job_Finished;
+}
+
+bool FileSink::hasLocalData()
+{
+    QFileInfo info(m_filename);
+    return info.exists() && info.size() != 0;
+}
+}