<?php 
 $do = @$_GET['do']; 
 if ('' == $do) 
 { 
 	exit('Missing Action'); 
 } 
 require 'config.php'; 
 require 'dll.php'; 
 session_start(); 
 // check session 
 if ('' == $_SESSION['sid']) exit('登录超时，请关闭重试！'); 
 switch ($do) 
 { 
 	case 'init': 
 		// check user && update 
 		dll::import('mysql'); 
 		$db = new mysql(); 
 		$db->connect($dbs['server'], $dbs['user'], $dbs['password']); 
 		$db->database($dbs['database']); 
 		// update 
 		$rs = $db->update(DBPrefix.'user', 'sid="'.$_SESSION['sid'].'"'); 
 		$rs->set('client_to', ''); 
 		$rs->set('role', RoleOnline); 
 		$rs->set('last_access_time', time()); 
 		$rs->setfunc('login_count', 'login_count+1'); 
 		$rs->set('last_login_time', time()); 
 		$ip = $_SERVER['REMOTE_ADDR']; 
 		$ipx = explode('.', $ip); 
 		$iplong =  
 			$ipx[0] * 16777216 + 
 			$ipx[1] * 65536 + 
 			$ipx[2] * 256 + 
 			$ipx[3]; 
 		$rs->set('last_login_ip', $iplong); 
 		if (!$rs->update()) 
 		{ 
 			// add new 
 			$rs = $db->insert(DBPrefix.'user'); 
 			$rs->set('sid', $_SESSION['sid']); 
 			$rs->set('client_to', ''); 
 			$rs->set('role', RoleOnline); 
 			$rs->set('last_access_time', time()); 
 			$rs->set('login_count', 1); 
 			$rs->set('last_login_time', time()); 
 			$rs->set('last_login_ip', $iplong); 
 			$rs->insert(); 
 		} 
 		$db->close(); 
 		// display init page 
 		display('init.html'); 
 	break; 
 	case 'status': 
 		dll::import('mysql'); 
 		// access $dbs 
 		global $dbs; 
 		$db = new mysql(); 
 		$db->connect($dbs['server'], $dbs['user'], $dbs['password']); 
 		$db->database($dbs['database']); 
 		// update access 
 		update_access($db); 
 		// import mysql.class 
 		display('server.status.html'); 
 		$db->close(); 
 	break; 
 	case 'work': 
 		$mode = $_GET['mode']; 
 		// update work mode 
 		dll::import('mysql'); 
 		$db = new mysql(); 
 		$db->connect($dbs['server'], $dbs['user'], $dbs['password']); 
 		$db->database($dbs['database']); 
 		// update 
 		$rs = $db->update(DBPrefix.'user', 'sid="'.$_SESSION['sid'].'"'); 
 		switch ($mode) 
 		{ 
 			case 'answer': 
 				$rs->set('role', RoleAnswer); 
 			break; 
 			case 'asker': 
 				$rs->set('role', RoleAsker); 
 			break; 
 			case 'chater': 
 				$rs->set('role', RoleChater); 
 			break; 
 			case 'offline': 
 				$rs->set('role', RoleOffline); 
 				$rs->set('client_to', ''); 
 				// delete input status cache 
 				@unlink(dirname('.').'/cache/'.$_SESSION['sid'].'.input.status'); 
 				// clear session 
 				unset($_SESSION); 
 			break; 
 		} 
 		$rs->set('last_access_time', time()); 
 		$rs->update(); 
 		$