algorithm

codeigniter/.htaccess

@@ -0,0 +1,3 @@
+RewriteEngine on
+RewriteCond $1 !^(index\.php|css|js|images|robots\.txt)
+RewriteRule ^(.*)$ /index.php/$1 [L]

codeigniter/application/config/autoload.php

@@ -52,7 +52,7 @@
 |	$autoload['libraries'] = array('database', 'session', 'xmlrpc');
 */
 
-$autoload['libraries'] = array();
+$autoload['libraries'] = array('database','session','form_validation');
 
 
 /*
@@ -64,7 +64,7 @@
 |	$autoload['helper'] = array('url', 'file');
 */
 
-$autoload['helper'] = array();
+$autoload['helper'] = array('url','form');
 
 
 /*

codeigniter/application/config/config.php

@@ -14,7 +14,7 @@
 | path to your installation.
 |
 */
-$config['base_url']	= '';
+$config['base_url']	= 'http://satishathome.net/';
 
 /*
 |--------------------------------------------------------------------------
@@ -26,7 +26,7 @@
 | variable so that it is blank.
 |
 */
-$config['index_page'] = 'index.php';
+$config['index_page'] = '';
 
 /*
 |--------------------------------------------------------------------------
@@ -69,7 +69,7 @@
 | than english.
 |
 */
-$config['language']	= 'japanese';
+$config['language']	= 'english';
 
 /*
 |--------------------------------------------------------------------------
@@ -224,7 +224,7 @@
 | MUST set an encryption key.  See the user guide for info.
 |
 */
-$config['encryption_key'] = '';
+$config['encryption_key'] = 'REALLY_LONG_NUMBER';
 
 /*
 |--------------------------------------------------------------------------
@@ -279,7 +279,7 @@
 | COOKIE data is encountered
 |
 */
-$config['global_xss_filtering'] = FALSE;
+$config['global_xss_filtering'] = TRUE;
 
 /*
 |--------------------------------------------------------------------------
@@ -293,7 +293,7 @@
 | 'csrf_cookie_name' = The cookie name
 | 'csrf_expire' = The number in seconds the token should expire.
 */
-$config['csrf_protection'] = FALSE;
+$config['csrf_protection'] = TRUE;
 $config['csrf_token_name'] = 'csrf_test_name';
 $config['csrf_cookie_name'] = 'csrf_cookie_name';
 $config['csrf_expire'] = 7200;

codeigniter/application/config/constants.php

@@ -1,5 +1,9 @@
 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
+define('DEFAULT_STATUS',"express yourself");
+define('LENGTH',2);
+define('LOGIN_FAILED',"Username or password is incorrect.");
+define('NO_MESSAGE'," ");
 /*
 |--------------------------------------------------------------------------
 | File and Directory Modes

codeigniter/application/config/routes.php

@@ -38,7 +38,7 @@
 |
 */
 
-$route['default_controller'] = "welcome";
+$route['default_controller'] = "Login";
 $route['404_override'] = '';
 
 

codeigniter/application/controllers/login.php

@@ -0,0 +1,48 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Login extends CI_Controller {
+	public function _remap($method, $args) {
+		if (method_exists($this, $method)){
+			// Call before action
+			$this->before();
+			return call_user_func_array(array($this, $method), $args);
+		}
+		show_404();        //if the user enters any other function which is not in this class
+	}
+
+	private function before() {
+		if($this->session->userdata('logged_in')){
+			redirect('room','refresh');
+		}
+	}
+
+	public function index(){
+		$data['message'] = NO_MESSAGE;
+		$this->load->view('loginView',$data);
+	}
+
+	private function verifyLogin(){
+		$this->form_validation->set_rules('username', 'Username', 'trim|xss_clean');
+		$this->form_validation->set_rules('password', 'Password', 'trim|xss_clean');
+
+		if ($this->form_validation->run() == FALSE) {     //if form validation fails, redirect to login page with message
+			$data['message'] = LOGIN_FAILED;
+			return $this->load->view('loginView',$data);	
+		} else {      									 //if form validation passes, get data and check database 
+			$email = htmlspecialchars($_POST['email']);
+			$password = sha1(htmlspecialchars($_POST['password']));     
+			$this->load->model('users');
+			$singleRowResult=$this->users->authenticate($email,$password); //the authenticate function is in model:users
+		}
+
+		if ($singleRowResult) {                    //if user exists create session and redirect to room
+			$sess_array = array();
+			$sess_array = array('userid' => $singleRowResult['userid'],'username' => $singleRowResult['username']);
+			$this->session->set_userdata('logged_in', $sess_array);
+			redirect('room','refresh');
+		} else {                         // if user does not exist, redirect to login page with message
+			$data['message'] = LOGIN_FAILED;
+			$this->load->view('loginView',$data);
+		}
+	}
+}

codeigniter/application/controllers/register.php

@@ -0,0 +1,48 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Register extends CI_Controller {
+	public function _remap($method, $args) {
+		if (method_exists($this, $method)){
+			// Call before action
+			$this->before();
+			return call_user_func_array(array($this, $method), $args);
+		}
+		show_404();
+	}
+
+	private function before() {
+		if($this->session->userdata('logged_in')){
+			redirect('room','refresh');
+		}
+	}
+
+	public function index(){
+		$this->load->view('registerView');	
+	}
+
+	private function verifyRegister(){
+		$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');
+		$this->form_validation->set_rules('email', 'Email', 'trim|xss_clean|required|valid_email|is_unique[users.email]');
+		$this->form_validation->set_rules('password', 'Password', 'trim|xss_clean|required');
+		$this->form_validation->set_rules('confirmPassword', 'Confirm Password', 'trim|xss_clean|matches[password]|required');	
+
+		if ($this->form_validation->run() == FALSE){    // if form validation fails,load the registrationForm 
+			$this->load->view('registerView');       
+		} else {                                        //if form validation passes,authenticate,set the session and redirect to room 
+			$username = htmlspecialchars($_POST['username']);
+			$password =sha1(htmlspecialchars($_POST['password']));
+			$email = $_POST['email'];
+			$this->load->model('users');
+			$isRegistered = $this->users->register($username,$email,$password);
+			if ($isRegistered) {
+				$singleRowResult=$this->users->authenticate($email,$password);
+				$sess_array = array();
+				$sess_array = array('userid' => $singleRowResult['userid'],'username' => $singleRowResult['username']);
+				$this->session->set_userdata('logged_in', $sess_array);
+				redirect('room','refresh');
+			} else {
+				echo("A technical error has occurred!");
+			}
+		}
+	}
+}

codeigniter/application/controllers/room.php

@@ -0,0 +1,98 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Room extends CI_Controller {
+	public function _remap($method, $args) {
+		if (method_exists($this, $method)){
+			// Call before action
+			$this->before();
+			return call_user_func_array(array($this, $method), $args);
+		}
+		show_404();        //if the user enters any other function which is not in this class
+	}
+
+	private function before() {
+		if($this->session->userdata('logged_in')){
+			return true;
+		}
+		else{
+			redirect('login','refresh');
+		}	
+	}	
+
+	public function index(){
+		$posts = $this->showInitialPosts();
+		if($posts){                             //if result exists send the result to room for display
+			$data['jsonObject'] = $posts;
+			$this->load->view('roomView',$data);
+		}
+		else{                                    
+			$data['message'] = "NO_POSTS_YET";
+			$this->load->view('roomView',$data);
+		}
+	}
+
+	public function showInitialPosts(){
+		$this->load->model('posts');
+		$postsFromDB = $this->posts->getInitialPosts();
+
+		if ($postsFromDB) {
+			return json_encode($postsFromDB);
+		} else {
+			return false;
+		}		
+	} 
+
+	public function showPosts($parameter){
+		$postid = (int) $parameter;  //type casting the parameter to integer will cause page to be 0 is it contains alphabets
+
+		$this->load->model('posts');
+		$postsFromDB = $this->posts->getPosts($postid);
+
+		if ($postsFromDB) {
+			return json_encode($postsFromDB);
+		} else {
+			return false;
+		}		
+	} 
+
+	public function ajaxDisplay(){
+		$postid = $_POST['postid'];
+		$posts = $this->showPosts($postid);
+		if($posts){
+			print_r($posts);                         //returns the JSON Object Array to ajax responseText
+		}
+		else{
+			echo("[{\"message\":\"OUT_OF_INDEX\"}]");
+		}
+	}
+
+	public function ajaxPost(){
+		$session_data = $this->session->userdata('logged_in');
+		if(isset($_POST['status'])){
+			$userid = $session_data['userid'];
+		 	$username = $session_data['username'];
+			$posts = $_POST['status'];
+			$time_of_post = date("Y-m-d H:i:s");
+
+			$this->load->model('posts');
+			$insertPost = $this->posts->post($userid,$username,$posts,$time_of_post);
+		} else {
+			echo("VARIABLES_NOT_SET_IN_AJAXPOST");
+		}
+
+		if($insertPost){
+			echo($time_of_post);
+		}
+		else{
+			echo("POST_NOT_INSERTED");
+		}
+	}
+
+	public function logout(){
+		$this->session->unset_userdata('logged_in');
+		$this->session->sess_destroy();
+		redirect('login', 'refresh');
+	}
+}
+
+?>

codeigniter/application/controllers/room_1.php

@@ -0,0 +1,100 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+session_start();
+
+class Room extends CI_Controller {
+	public function _remap($method, $args) {
+		if (method_exists($this, $method)){
+			// Call before action
+			$this->before();
+			return call_user_func_array(array($this, $method), $args);
+		}
+		show_404();        //if the user enters any other function which is not in this class
+	}
+
+	private function before() {
+		if($this->session->userdata('logged_in')){
+			return true;
+		}
+		else{
+			redirect('login','refresh');
+		}	
+	}	
+
+
+	public function index(){
+		$posts = $this->showPosts("1");
+		if($posts){                             //if result exists send the result to room for display
+			$this->load->view('roomView',$posts);
+		}
+		else{                                    
+			$data['message'] = "NO_POSTS_YET";
+			$this->load->view('roomView',$data);
+		}
+	}
+
+	public function showPosts($parameter){
+		$page = (int) $parameter;  //type casting the parameter to integer will cause page to be 0 is it contains alphabets
+		$session_data = $this->session->userdata('logged_in');
+
+		$this->load->model('posts');
+		$postsFormDB = $this->posts->getPosts($page);
+
+		if($postsFormDB){
+			if(!isset($postsFormDB['message'])){
+				$postsFormDB['message'] = "NOT_SET";
+			}
+			$n = count($postsFormDB);
+			array_unshift($postsFormDB,$session_data['username'],$n + 2,$page);
+			//setting the data to be sent to the view
+			for($i = 0; $i < $n + 2; $i++){
+				$di = 'di'.$i;
+				$data[$di] = $postsFormDB[$i];
+			}
+			$data['message'] = $postsFormDB['message'];
+			return $data;
+		}
+		else{
+			return false;
+		}		
+	} 
+
+	public function ajax($param){
+		$posts = $this->showPosts($param);
+		if($posts){
+			print_r($posts);                         //returns the array to ajax responseText
+		}
+		else{
+			echo("NO!");
+		}
+	}
+
+	public function ajaxPost(){
+		if(isset($_POST['username'])&&isset($_POST['status'])){
+		 	$username = $_POST['username'];
+			$posts = $_POST['status'];
+			$date = date("Y-m-d H:i:s");
+
+			$this->load->model('posts');
+			$insertPost = $this->posts->post($username,$posts,$date);
+
+			if($insertPost){
+				echo($date);
+			}
+			else{
+				echo("false");
+			}
+		}
+		else{
+			echo("VARIABLES_NOT_SET");
+		}
+	}
+
+	public function logout(){
+		$this->session->unset_userdata('logged_in');
+		session_destroy();
+		redirect('login', 'refresh');
+	}
+}
+
+?>