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("123@123.com","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"]; }}?>
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