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August 29, 2015 13:56
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PHP Login Class
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class Auth { | |
var $user_id; | |
var $username; | |
var $password; | |
var $ok; | |
var $salt = "shaz3e"; | |
var $domain = ".domain.com"; | |
function Auth(){ | |
global $db; | |
$this->user_id = 0; | |
$this->username = "Guest"; | |
$this->ok = false; | |
if(!$this->check_session()) $this->check_cookie(); | |
return $this->ok; | |
} | |
function check_session(){ | |
if(!empty($_SESSION['auth_username']) && !empty($_SESSION['auth_password'])) | |
return $this->check($_SESSION['auth_username'], $_SESSION['auth_password']); | |
else | |
return false; | |
} | |
function check_cookie(){ | |
if(!empty($_COOKIE['auth_username']) && !empty($_COOKIE['auth_password'])) | |
return $this->check($_COOKIE['auth_username'], $_COOKIE['auth_password']); | |
else | |
return false; | |
} | |
function login($username, $password){ | |
global $db; | |
$db->query("SELECT user_id FROM users WHERE username = '$username' AND password = '$password'"); | |
if(mysql_num_rows($db->result) == 1){ | |
$this->user_id = mysql_result($db->result, 0, 0); | |
$this->username = $username; | |
$this->ok = true; | |
$_SESSION['auth_username'] = $username; | |
$_SESSION['auth_password'] = md5($password . $this->salt); | |
setcookie("auth_username", $username, time()+60*60*24*30, "/", $this->domain); | |
setcookie("auth_password", md5($password . $this->salt), time()+60*60*24*30, "/", $this->domain); | |
return true; | |
} | |
return false; | |
} | |
function check($username, $password){ | |
global $db; | |
$db->query("SELECT user_id, password FROM users WHERE username = '$username'"); | |
if(mysql_num_rows($db->result) == 1){ | |
$db_password = mysql_result($db->result, 0, 1); | |
if(md5($db_password . $this->salt) == $password) | |
{ | |
$this->user_id = mysql_result($db->result, 0, 0); | |
$this->username = $username; | |
$this->ok = true; | |
return true; | |
} | |
} | |
return false; | |
} | |
function logout(){ | |
$this->user_id = 0; | |
$this->username = "Guest"; | |
$this->ok = false; | |
$_SESSION['auth_username'] = ""; | |
$_SESSION['auth_password'] = ""; | |
setcookie("auth_username", "", time() - 3600, "/", $this->domain); | |
setcookie("auth_password", "", time() - 3600, "/", $this->domain); | |
} | |
} // end class Auth |
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