Allow the specification of a cookie name and property to fetch its value from for tracking URLs. Clientstep needs this so we can identify the user and correlate with their other events.

src/java/com/threerings/getdown/data/Application.java

@@ -43,6 +43,7 @@ import java.io.InputStreamReader;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
+import java.net.URLConnection;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -351,6 +352,20 @@ public class Application
         return getTrackingURL("pct" + percent);
     }
 
+    /**
+     * Sets a cookie for a tracking URL if we have an appropriate property to fetch it from,
+     *  an appropriate cookie name to assign, and the property is set to non-null.
+     */
+    public void maybeSetTrackingCookie (URLConnection conn)
+    {
+        if (_trackingCookieName != null && _trackingCookieProperty != null) {
+            String val = System.getProperty(_trackingCookieProperty);
+            if (val != null) {
+                conn.setRequestProperty("Cookie", _trackingCookieName + "=" + val);
+            }
+        }
+    }
+
     /**
      * Instructs the application to parse its <code>getdown.txt</code> configuration and prepare
      * itself for operation. The application base URL will be parsed first so that if there are
@@ -452,6 +467,10 @@ public class Application
             _trackingPcts = new ArrayIntSet(new int[] { 50 });
         }
 
+        // Check for tracking cookie configuration
+        _trackingCookieName = (String)cdata.get("tracking_cookie_name");
+        _trackingCookieProperty = (String)cdata.get("tracking_cookie_property");
+
         // clear our arrays as we may be reinitializing
         _codes.clear();
         _resources.clear();
@@ -1089,6 +1108,8 @@ public class Application
 
     protected String _trackingURL;
     protected ArrayIntSet _trackingPcts;
+    protected String _trackingCookieName;
+    protected String _trackingCookieProperty;
 
     protected int _javaVersion;
     protected String _javaLocation;

src/java/com/threerings/getdown/launcher/Getdown.java

@@ -691,7 +691,7 @@ public abstract class Getdown extends Thread
         EventQueue.invokeLater(new Runnable() {
             public void run () {
                 if (_status == null) {
-                    _container = createContainer(); 
+                    _container = createContainer();
                     _status = new StatusPanel(_msgs);
                     _container.add(_status, BorderLayout.CENTER);
                 }
@@ -784,7 +784,7 @@ public abstract class Getdown extends Thread
         if (StringUtil.isBlank(path)) {
             return null;
         }
-        
+
         File imgpath = null;
         try {
             // First try for a localized image.
@@ -843,7 +843,7 @@ public abstract class Getdown extends Thread
     protected abstract void exit (int exitCode);
 
     /** Used to fetch a progress report URL. */
-    protected static class ProgressReporter extends Thread
+    protected class ProgressReporter extends Thread
     {
         public ProgressReporter (URL url) {
             setDaemon(true);
@@ -853,6 +853,7 @@ public abstract class Getdown extends Thread
         public void run () {
             try {
                 HttpURLConnection ucon = (HttpURLConnection)_url.openConnection();
+                _app.maybeSetTrackingCookie(ucon);
                 ucon.connect();
                 try {
                     if (ucon.getResponseCode() != HttpURLConnection.HTTP_OK) {