Miscellaneous bug fixes

divide by zero, inaccurate discount and totals, reflection of user input


git-svn-id: http://webgoat.googlecode.com/svn/trunk/webgoat@273 4033779f-a91e-0410-96ef-6bf7bf53c507

main/project/JavaSource/org/owasp/webgoat/session/SequentialLessonTracker.java

@@ -0,0 +1,39 @@
+package org.owasp.webgoat.session;
+
+import java.util.Properties;
+
+public class SequentialLessonTracker extends LessonTracker {
+
+    private int currentStage = 1;
+
+
+
+    public int getStage()
+    {
+	return currentStage;
+    }
+
+
+    public void setStage(int stage)
+    {
+	currentStage = stage;
+    }
+
+    protected void setProperties(Properties props, Screen screen)
+    {
+    super.setProperties(props, screen);
+	currentStage = Integer.parseInt(props.getProperty(screen.getTitle()
+		+ ".currentStage"));
+    }
+    
+    public void store(WebSession s, Screen screen, String user)
+    {
+	lessonProperties.setProperty(screen.getTitle() + ".currentStage",
+		Integer.toString(currentStage));
+	super.store(s, screen, user);
+    }
+    
+    public String toString() {
+    	return super.toString() + "    - currentStage:....... " + currentStage + "\n";
+    }
+}