initial rev of SignedWalletTransaction that creates a message

interface/src/Application.cpp

@@ -74,6 +74,7 @@
 #include "devices/OculusManager.h"
 #include "devices/TV3DManager.h"
 #include "renderer/ProgramObject.h"
+#include "SignedWalletTransaction.h"
 
 #include "scripting/AccountScriptingInterface.h"
 #include "scripting/AudioDeviceScriptingInterface.h"
@@ -405,6 +406,12 @@ Application::Application(int& argc, char** argv, QElapsedTimer &startup_time) :
     MIDIManager& midiManagerInstance = MIDIManager::getInstance();
     midiManagerInstance.openDefaultPort();
 #endif
+    
+    
+    QUuid destinationWallet = QUuid::createUuid();
+    
+    SignedWalletTransaction testTransaction(destinationWallet, 1000, QDateTime::currentDateTime().toTime_t(), 3600);
+    qDebug() << "Message digest is" << testTransaction.hexMessage();
 }
 
 Application::~Application() {

interface/src/SignedWalletTransaction.cpp

@@ -0,0 +1,51 @@
+//
+//  SignedWalletTransaction.cpp
+//  interface/src
+//
+//  Created by Stephen Birarda on 2014-07-11.
+//  Copyright 2014 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include <QtCore/QCryptographicHash>
+#include <QtCore/QDebug>
+#include <QtCore/QFile>
+
+#include "SignedWalletTransaction.h"
+
+SignedWalletTransaction::SignedWalletTransaction(const QUuid& destinationUUID, qint64 amount,
+                                                 qint64 messageTimestamp, qint64 expiryDelta) :
+    WalletTransaction(destinationUUID, amount),
+    _messageTimestamp(messageTimestamp),
+    _expiryDelta(expiryDelta)
+{
+    
+}
+
+QByteArray SignedWalletTransaction::hexMessage() {
+    // build the message using the components of this transaction
+    
+    // UUID, source UUID, destination UUID, message timestamp, expiry delta, amount
+    QByteArray messageBinary;
+    
+    messageBinary.append(_uuid.toRfc4122());
+    
+    messageBinary.append(reinterpret_cast<const char*>(&_messageTimestamp), sizeof(_messageTimestamp));
+    messageBinary.append(reinterpret_cast<const char*>(&_expiryDelta), sizeof(_expiryDelta));
+    
+    QUuid sourceUUID = QUuid::createUuid();
+    qDebug() << "The faked source UUID is" << sourceUUID;
+    messageBinary.append(sourceUUID.toRfc4122());
+    
+    messageBinary.append(_destinationUUID.toRfc4122());
+    
+    messageBinary.append(reinterpret_cast<const char*>(&_amount), sizeof(_amount));
+    
+    return messageBinary.toHex();
+}
+
+QByteArray SignedWalletTransaction::messageDigest() {
+    return QCryptographicHash::hash(hexMessage(), QCryptographicHash::Sha256);
+}

interface/src/SignedWalletTransaction.h

@@ -0,0 +1,31 @@
+//
+//  SignedWalletTransaction.h
+//  interfac/src
+//
+//  Created by Stephen Birarda on 2014-07-11.
+//  Copyright 2014 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_SignedWalletTransaction_h
+#define hifi_SignedWalletTransaction_h
+
+#include <WalletTransaction.h>
+
+class SignedWalletTransaction : public WalletTransaction {
+    Q_OBJECT
+public:
+    SignedWalletTransaction(const QUuid& destinationUUID, qint64 amount, qint64 messageTimestamp, qint64 expiryDelta);
+    
+    QByteArray hexMessage();
+    QByteArray messageDigest();
+    QByteArray signedMessageDigest();
+    
+private:
+    qint64 _messageTimestamp;
+    qint64 _expiryDelta;
+};
+
+#endif // hifi_SignedWalletTransaction_h

libraries/networking/src/WalletTransaction.h

@@ -36,7 +36,7 @@ public:
     QJsonDocument postJson();
     QJsonObject toJson();
     void loadFromJson(const QJsonObject& jsonObject);
-private:
+protected:
     QUuid _uuid;
     QUuid _destinationUUID;
     qint64 _amount;