First cut of Facebook integration:

1) Web Script framework extensions for supporting the development of Alfresco based Facebook applications
2) Sample Document Library Facebook application
3) FormData enhancements for supporting request args retrieval for multipart/form-data encoding
4) Sort order added to Search Javascript API

Note: Stuff needs commenting, tidy up, but at least it's in SVN.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@7259 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/scripts/facebook/FacebookModel.java

@@ -0,0 +1,133 @@
+package org.alfresco.web.scripts.facebook;
+
+import java.io.IOException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.w3c.dom.Document;
+import org.w3c.dom.NodeList;
+
+import com.facebook.api.FacebookException;
+import com.facebook.api.FacebookRestClient;
+
+
+public class FacebookModel
+{
+    // Logger
+    private static final Log logger = LogFactory.getLog(FacebookModel.class);
+    
+    private FacebookServletRequest req;
+    private FacebookRestClient client;
+	private String[] friends;
+
+	public FacebookModel(FacebookServletRequest req)
+	{
+	    this.req = req;
+	}
+	
+	private FacebookRestClient getClient()
+	{
+	    if (client == null)
+	    {
+    	    String apiKey = req.getApiKey();
+    	    String secretKey = req.getSecretKey();
+            String sessionKey = req.getSessionKey();
+            if (sessionKey == null)
+            {
+                client = new FacebookRestClient(apiKey, secretKey);
+            }
+            else
+            {
+                client = new FacebookRestClient(apiKey, secretKey, sessionKey);
+            }
+	    }
+	    return client;
+	}
+	
+	public String[] getFriends()
+	{
+		if (friends == null)
+		{
+		    friends = req.getFriends();
+		    if (friends == null)
+		    {
+    			try
+    			{
+    				Document friendsDoc = getClient().friends_get();
+    				NodeList uids = friendsDoc.getElementsByTagName("uid");
+    				friends = new String[uids.getLength()];
+    				for (int i = 0; i < uids.getLength(); i++)
+    				{
+    					friends[i] = uids.item(i).getTextContent();
+    				}
+    			}
+    			catch(Exception e)
+    			{	
+    				friends = new String[0];
+    			}
+		    }
+		}
+		return friends;
+	}
+	
+	public String getUser()
+	{
+		return req.getUserId();
+	}
+	
+	public String getAppId()
+	{
+	    return req.getAppId();
+	}
+	
+	public String getSessionKey()
+	{
+		return req.getSessionKey();
+	}
+	
+	public String getApiKey()
+	{
+	    return req.getApiKey();
+	}
+	
+	public String getCanvasPath()
+	{
+	    return req.getCanvasPath();
+	}
+	
+	public String getCanvasURL()
+	{
+	    return "http://apps.facebook.com/" + getCanvasPath();
+	}
+	
+	public String getPageURL()
+	{
+        return "http://apps.facebook.com" + req.getPathInfo();
+	}
+	
+	public String getSecret()
+	{
+	    return req.getSecretKey();
+	}
+	
+	public boolean postUserAction(String title, String body)
+	{
+		try 
+		{
+			Document result = getClient().feed_publishActionOfUser(title, body);
+			// TODO: check result
+			return true;
+		}
+		catch (FacebookException e)
+		{
+		    if (logger.isDebugEnabled())
+		        logger.debug("Failed to post user action [title=" + title + ", body=" + body + "] due to " + e.toString());
+		}
+		catch (IOException e)
+		{
+            if (logger.isDebugEnabled())
+                logger.debug("Failed to post user action [title=" + title + ", body=" + body + "] due to " + e.toString());
+		}
+		return false;
+	}
+}