Add support for database format 3.01 (HeaderHash).

Add test for the format 3.00 and upgrade Compressed.kdbx, NonAscii.kdbx
and ProtectedStrings.kdbx to 3.01.

Add a test for an incorrect HeaderHash.

src/streams/StoreDataStream.cpp

@@ -0,0 +1,48 @@
+/*
+*  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+*
+*  This program is free software: you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation, either version 2 or (at your option)
+*  version 3 of the License.
+*
+*  This program 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 General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "StoreDataStream.h"
+
+StoreDataStream::StoreDataStream(QIODevice* baseDevice)
+    : LayeredStream(baseDevice)
+{
+}
+
+bool StoreDataStream::open(QIODevice::OpenMode mode)
+{
+    bool result = LayeredStream::open(mode);
+
+    if (result) {
+        m_storedData.clear();
+    }
+
+    return result;
+}
+
+QByteArray StoreDataStream::storedData() const
+{
+    return m_storedData;
+}
+
+qint64 StoreDataStream::readData(char* data, qint64 maxSize)
+{
+    qint64 bytesRead = LayeredStream::readData(data, maxSize);
+
+    m_storedData.append(data, bytesRead);
+
+    return bytesRead;
+}

src/streams/StoreDataStream.h

@@ -0,0 +1,39 @@
+/*
+*  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+*
+*  This program is free software: you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation, either version 2 or (at your option)
+*  version 3 of the License.
+*
+*  This program 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 General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef KEEPASSX_STOREDATASTREAM_H
+#define KEEPASSX_STOREDATASTREAM_H
+
+#include "streams/LayeredStream.h"
+
+class StoreDataStream : public LayeredStream
+{
+    Q_OBJECT
+
+public:
+    explicit StoreDataStream(QIODevice* baseDevice);
+    bool open(QIODevice::OpenMode mode) Q_DECL_OVERRIDE;
+    QByteArray storedData() const;
+
+protected:
+    qint64 readData(char* data, qint64 maxSize) Q_DECL_OVERRIDE;
+
+private:
+    QByteArray m_storedData;
+};
+
+#endif // KEEPASSX_STOREDATASTREAM_H