Implement most HTTP parts of the protocol

src/com/limelight/nvstream/NvConnection.java

@@ -0,0 +1,31 @@
+package com.limelight.nvstream;
+
+import java.io.IOException;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+public class NvConnection {
+	private String host;
+	
+	public NvConnection(String host)
+	{
+		this.host = host;
+	}
+	
+	public void doShit() throws XmlPullParserException, IOException
+	{
+		NvHttp h = new NvHttp(host, "b0:ee:45:57:5d:5f");
+		
+		System.out.println("Shield Shit");
+		System.out.println(h.getAppVersion());
+		System.out.println(h.getPairState());
+		
+		
+		int sessionId = h.getSessionId();
+		System.out.println("Session ID: "+sessionId);
+		int appId = h.getSteamAppId(sessionId);
+		System.out.println("Steam app ID: "+appId);
+		int gameSession = h.launchApp(sessionId, appId);
+		System.out.println("Started game session: "+gameSession);
+	}
+}

src/com/limelight/nvstream/NvHttp.java

@@ -0,0 +1,96 @@
+package com.limelight.nvstream;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.Stack;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
+public class NvHttp {
+	private String host;
+	private String macAddress;
+	
+	public static final int PORT = 47989;
+	
+	public NvHttp(String host, String macAddress)
+	{
+		this.host = host;
+		this.macAddress = macAddress;
+	}
+	
+	private String getXmlString(InputStream in, String attribute) throws XmlPullParserException, IOException
+	{
+		XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
+        factory.setNamespaceAware(true);
+        XmlPullParser xpp = factory.newPullParser();
+        
+        xpp.setInput(new InputStreamReader(in));
+        int eventType = xpp.getEventType();
+        Stack<String> currentTag = new Stack<String>();
+
+        while (eventType != XmlPullParser.END_DOCUMENT)
+        {
+            if (eventType == XmlPullParser.START_TAG) {
+            	currentTag.push(xpp.getName());
+            	for (int i = 0; i < xpp.getAttributeCount(); i++)
+            	{
+            		if (xpp.getAttributeName(i).equals(attribute))
+            			return xpp.getAttributeValue(i);
+            	}
+            } else if (eventType == XmlPullParser.END_TAG) {
+                currentTag.pop();
+            } else if (eventType == XmlPullParser.TEXT) {
+            	if (currentTag.peek().equals(attribute)) {
+                    return xpp.getText();
+            	}
+            }
+            eventType = xpp.next();
+        }
+        
+        return null;
+	}
+	
+	private InputStream openHttpConnection(String url) throws IOException
+	{
+		return new URL(url).openConnection().getInputStream();
+	}
+	
+	public String getAppVersion() throws XmlPullParserException, IOException
+	{
+		InputStream in = openHttpConnection("http://"+host+":"+PORT+"/appversion");
+		return getXmlString(in, "appversion");
+	}
+	
+	public boolean getPairState() throws IOException, XmlPullParserException
+	{
+		InputStream in = openHttpConnection("http://"+host+":"+PORT+"/pairstate?mac="+macAddress);
+		String paired = getXmlString(in, "paired");
+		return Integer.valueOf(paired) != 0;
+	}
+	
+	public int getSessionId() throws IOException, XmlPullParserException
+	{
+		InputStream in = openHttpConnection("http://"+host+":"+PORT+"/pair?mac="+macAddress+"&devicename=ANDROID");
+		String sessionId = getXmlString(in, "sessionid");
+		return Integer.valueOf(sessionId);
+	}
+	
+	public int getSteamAppId(int sessionId) throws IOException, XmlPullParserException
+	{
+		InputStream in = openHttpConnection("http://"+host+":"+PORT+"/applist?session="+sessionId);
+		String appId = getXmlString(in, "ID");
+		return Integer.valueOf(appId);
+	}
+	
+	// Returns gameSession XML attribute
+	public int launchApp(int sessionId, int appId) throws IOException, XmlPullParserException
+	{
+		InputStream in = openHttpConnection("http://"+host+":"+PORT+"/launch?session="+sessionId+"&appid="+appId);
+		String gameSession = getXmlString(in, "gamesession");
+		return Integer.valueOf(gameSession);
+	}
+}