From 229a8b4c23ff6cc73bd7834a390deb73fde4661c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20M=C3=B6bius?= <moebius@cs.rwth-aachen.de>
Date: Tue, 28 Jul 2009 12:49:53 +0000
Subject: [PATCH] Work on License Manager

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@6650 383ad7c9-94d9-4d36-a494-682f7c89f535
---
 LicenseManager/LicenseManager.cc | 24 +++++++++++++++++++++-
 LicenseManager/LicenseManager.hh | 35 ++++++++++++++++++++++++++++----
 2 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/LicenseManager/LicenseManager.cc b/LicenseManager/LicenseManager.cc
index 9ea84cc2..da3befbf 100644
--- a/LicenseManager/LicenseManager.cc
+++ b/LicenseManager/LicenseManager.cc
@@ -227,24 +227,46 @@ bool LicenseManager::authenticate() {
   std::cerr << "Core Hash : " << coreHash.toStdString() << std::endl;
   std::cerr << "Plugin Hash : " << pluginHash.toStdString() << std::endl;
 
+  QString mac;
 
   // Get all Network Interfaces
   QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
   foreach ( QNetworkInterface interface, interfaces ) {
     std::cerr << "Name : " << interface.name().toStdString() << std::endl;
     std::cerr << "Found Interface : " << interface.hardwareAddress().toStdString() << std::endl; 
+    mac = mac + interface.hardwareAddress().remove(":");
   }
 
+  QString macHash = QCryptographicHash::hash ( mac.toAscii()  , QCryptographicHash::Sha1 ).toHex();
 
   std::cerr << "CPUID Supported : " << CpuIDSupported() << std::endl;
   std::cerr << "GenuineIntel    : " << GenuineIntel() << std::endl;
 
+  
+  QString saltPre;
+  ADD_SALT_PRE(saltPre);
+
+  QString saltPost;
+  ADD_SALT_POST(saltPost);
+
+  QString key = coreHash + saltPre + pluginHash + saltPost + macHash;
+
+  std::cerr << "Key is: " << key.toStdString() << std::endl;
+
 
   if ( authenticated_ ) 
     std::cerr << "Authentication succcessfull" << std::endl;
   else {
-    QMessageBox::warning ( 0, "Plugin License check failed", "License check for plugin has failed. Please get a valid License!" );
+    QString text = "License check for plugin has failed.\n";
+    text += "Please get a valid License!\n";
+    text += "Send the following Information to contact@openflipper.org:\n";
+    text += pluginFileName() +"\n";
+    text += coreHash +"\n";
+    text += pluginHash +"\n";
+    text += macHash +"\n";
+    QMessageBox::warning ( 0, "Plugin License check failed",  text );
     std::cerr << "Authentication failed" << std::endl;
+    authenticated_ = false;
   }
 
 //   authenticated_ = true;
diff --git a/LicenseManager/LicenseManager.hh b/LicenseManager/LicenseManager.hh
index 6f2fea7a..114e7d22 100644
--- a/LicenseManager/LicenseManager.hh
+++ b/LicenseManager/LicenseManager.hh
@@ -44,7 +44,12 @@
 #ifndef LICENSEMANAGER_HH
 #define LICENSEMANAGER_HH
 
-#include "OpenFlipper/BasePlugin/SecurityInterface.hh"
+#include <OpenFlipper/BasePlugin/SecurityInterface.hh>
+
+/** The salt file has to be provided for each plugin. It can be the same
+  for all plugins. See example for details on how this file has to be setup
+*/
+#include "salt.hh"
 
 class LicenseManager : public QObject, SecurityInterface  {
 
@@ -58,21 +63,43 @@ Q_INTERFACES(SecurityInterface)
 
   public :
 
+    /** This function is overloaded and will not allow to unblock signals
+        if the plugin is not authenticated
+    */
     void blockSignals( bool _state);
+    
+    /** Return if the plugin has successfully passed the authentication 
+    */
     bool authenticated();
 
-    virtual QString name() = 0;
-
   public slots:
+    /** Call this function for plugin authentication. If it returns true,
+        the authentication has been successfull. Otherwise the core will 
+        stop loading the plugin. Additionally the plugin will make itself
+        unusable by not allowing any signal slot connections.
+    */
     bool authenticate();
 
   private:
-    bool authenticated_;
+    /** This is used to get the plugins Name from derived classes
+        The glugin name is the usual name of the glugin
+    */
+    virtual QString name() = 0;
 
+    /** This function is special to the LicenseManager. It is used to
+        find the plugin when checking its hash value
+    */
     virtual QString pluginFileName();
 
+    /// This flag is true if authentication was successfull
+    bool authenticated_;
+
 
   protected :
+    /** This function is overloaded in the security interface. If the
+        plugin is not authenticated, all connections will be automatically
+        removed again.
+    */
     void connectNotify ( const char * /*signal*/ );
 
 };
-- 
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