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PHP 验证登陆类分享

2015-3-13 17:56| 投稿: winserver

摘要: 简单的登录类,没有把登录和数据库查询分开 复制代码 代码如下: /*  *   例子  *  *  $Auth=new Auth(...
简单的登录类,没有把登录和数据库查询分开 复制代码 代码如下: /*  *   例子  *  *  $Auth=new Auth();  *  $Auth->login("[email protected]","123");  *  $Auth->logout();  *  echo $r->init();      * **/ 验证登陆类 复制代码 代码如下: <?php /*  *  * @ID:      验证登陆类  *  * @class:   Auth.class.php  *  * @auther:  欣儿  *  * @time:    2015/03/12  *  * @web:     http://my.oschina.net/xinger  * **/ class Auth {     //外部设置     //cookie设置     var $cookie_time;//         7200     var $cookie_where;//        '/'     var $cookie_domain;//       'yourweb.com'     var $cookie_secure;//       1和0     //数据库设置         var $select_uid;//          'uid'     var $select_table;//        'user'     var $select_usersname;//    'email'     var $select_password;//     'password'     //盐     var $salt;//                "12332"     var $guest_name;//          'Guest'     //用户获取值     var $user_id;     var $username;     var $ok;     var $pre;//                 'auth_'     var $depr;//                '-'     //内部变量     private $pre_username;     private $pre_password;     public function __construct($config=array()){         $this->set($config);         $this->pre_username=sha1(md5($this->pre.'username'));         $this->pre_password=sha1(md5($this->pre.'password'));     }     public function set($config){         $this->cookie_time       = isset($config['cookie_time'])?$config['cookie_time']: 7200;         $this->cookie_where      = isset($config['cookie_where'])?$config['cookie_where']:'/';         $this->cookie_domain = isset($config['cookie_domain'])?$config['cookie_domain']:'';         $this->cookie_secure = isset($config['cookie_secure'])?$config['cookie_secure']:'';         $this->select_uid        = isset($config['select_uid'])?$config['select_uid']:'uid';         $this->select_table      = isset($config['select_table'])?$config['select_table']:'table';         $this->select_usersname  = isset($config['select_usersname'])?$config['select_usersname']:'user_name';         $this->select_password   = isset($config['select_password'])?$config['select_password']:'password';         $this->salt              = isset($config['salt'])?$config['salt']:'sghsdghsdg';//         $this->guest_name        = isset($config['guest_name'])?$config['guest_name']:'Guest';//         $this->pre               = isset($config['auth'])?$config['auth']:'auth_';         $this->depr              = isset($config['depr'])?$config['depr']:'-';     }     //     public function init(){         $this->user_id       = 0;         $this->username      = $this->guest_name;         $this->ok            = false;         if(!$this->check_session()){             $this->check_cookie();         }         return $this->ok;     }     //验证SESSION     private function check_session(){         if(!empty($_SESSION[$this->pre_username])&&!empty($_SESSION[$this->pre_password])){             return $this->check($_SESSION[$this->pre_username],$_SESSION[$this->pre_password]);         } else {             return false;         }     }     //验证COOKIE     private function check_cookie(){         if(!empty($_COOKIE[$this->pre_username])&&!empty($_COOKIE[$this->pre_password])){             return $this->check($_COOKIE[$this->pre_username],$_COOKIE[$this->pre_password]);         } else {             return false;         }     }     //登陆     public function login($username,$password){         $sql    = "select ".$this->select_uid." from ".$this->select_table." where ".$this->select_usersname."='$username' and ".$this->select_password."='$password'";         $result = mysql_query($sql);         $rows   = mysql_num_rows($sql);         if($rows==1){             $this->user_id   = mysql_result($result,0,0);             $this->username  = $username;             $this->ok        = true;             $username   = $username.$this->depr.$this->get_ip();             $user_name  = $this->encrypt($username,'E',$this->salt);             $_SESSION[$this->pre_username]=$user_name;             $_SESSION[$this->pre_password]=md5(md5($password,$this->salt));             setcookie($this->pre_username,$user_name,time()+$this->cookie_time,$this->cookie_where,$this->cookie_domain,$this->cookie_secure);             setcookie($this->pre_password,md5(md5($password,$this->salt)),time()+$this->cookie_time,$this->cookie_where,$this->cookie_domain,$this->cookie_secure);             return true;         }         return false;     }     //验证     private function check($username,$password){         $user_name  = $this->encrypt($username,'D',$this->salt);         $name       = explode($this->depr, $user_name);         $username   = $name[0];         $ip         = isset($name[1]) ? $name[1] : NULL;         if($ip !== $this->get_ip()) return false;         static $vars = array();         if(!empty($vars)&&is_array($vars)&&isset($vars[$username.$password])){             $this->user_id   = $vars['user_id'];             $this->username  = $vars['username'];             $this->ok        = $vars['ok'];             return true;         }         $sql    = "select ".$this->select_uid.",".$this->select_password." from ".$this->select_table." where ".$this->select_usersname."='$username'";         $query  = mysql_query($sql);         $result = mysql_fetch_array($query);         $row    = mysql_num_rows($sql);         if($row == 1){             $db_password=$result[$this->select_password];             if(md5(md5($db_password,$this->salt)) == $password){                 $this->user_id   = $vars['user_id']  = $result[$this->select_uid];                 $this->username  = $vars['username'] = $username;                 $this->ok        = $vars['ok']       = true;                 $vars[$username.$password]          = md5($username.$password);                 return true;             }         }         return false;     }     //退出     public function logout(){         $this->user_id       = 0;         $this->username      = $this->guest_name;         $this->ok            = false;         $_SESSION[$this->pre_username]="";         $_SESSION[$this->pre_password]="";         setcookie($this->pre_username,"",time()-$this->cookie_time,$this->cookie_where,$this->cookie_domain,$this->cookie_secure);         setcookie($this->pre_password,"",time()-$this->cookie_time,$this->cookie_where,$this->cookie_domain,$this->cookie_secure);     }       //加密     public function encrypt($string,$operation,$key='') {         $key=md5($key);         $key_length=strlen($key);         $string=$operation=='D'?base64_decode($string):substr(md5($string.$key),0,8).$string;         $string_length=strlen($string);         $rndkey=$box=array();         $result='';         for($i=0;$i<=255;$i++)         {             $rndkey[$i]=ord($key[$i%$key_length]);             $box[$i]=$i;         }         for($j=$i=0;$i<256;$i++)         {             $j=($j+$box[$i]+$rndkey[$i])%256;             $tmp=$box[$i];             $box[$i]=$box[$j];             $box[$j]=$tmp;         }         for($a=$j=$i=0;$i<$string_length;$i++)         {             $a=($a+1)%256;             $j=($j+$box[$a])%256;             $tmp=$box[$a];             $box[$a]=$box[$j];             $box[$j]=$tmp;             $result.=chr(ord($string[$i])^($box[($box[$a]+$box[$j])%256]));         }         if($operation=='D')         {             if(substr($result,0,8)==substr(md5(substr($result,8).$key),0,8))             {                 return substr($result,8);             }             else             {                 return'';             }         }         else         {             return str_replace('=','',base64_encode($result));         }     }     public function get_ip() {         return $_SERVER['REMOTE_ADDR'];     } } ?> 以上就是本文的全部内容了,希望大家能够喜欢。
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