PHP 验证登陆类分享
简单的登录类，没有把登录和数据库查询分开
/*
* 例子
*
* $Auth=newAuth();
* $Auth->login("123@123.com","123");
* $Auth->logout();
* echo$r->init();
*
**/
验证登陆类
<?php
/*
*
*@ID: 验证登陆类
*
*@class: Auth.class.php
*
*@auther: 欣儿
*
*@time: 2015/03/12
*
*@web: http://my.oschina.net/xinger
*
**/
classAuth{
//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$pre_password;
publicfunction__construct($config=array()){
$this->set($config);
$this->pre_username=sha1(md5($this->pre.'username'));
$this->pre_password=sha1(md5($this->pre.'password'));
}
publicfunctionset($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']:'-';
}
//
publicfunctioninit(){
$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
privatefunctioncheck_session(){
if(!empty($_SESSION[$this->pre_username])&&!empty($_SESSION[$this->pre_password])){
return$this->check($_SESSION[$this->pre_username],$_SESSION[$this->pre_password]);
}else{
returnfalse;
}
}
//验证COOKIE
privatefunctioncheck_cookie(){
if(!empty($_COOKIE[$this->pre_username])&&!empty($_COOKIE[$this->pre_password])){
return$this->check($_COOKIE[$this->pre_username],$_COOKIE[$this->pre_password]);
}else{
returnfalse;
}
}
//登陆
publicfunctionlogin($username,$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,$this->cookie_secure);
returntrue;
}
returnfalse;
}
//验证
privatefunctioncheck($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!==$this->get_ip())returnfalse;
static$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'];
returntrue;
}
$sql ="select".$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);
returntrue;
}
}
returnfalse;
}
//退出
publicfunctionlogout(){
$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
publicfunctionencrypt($string,$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))
{
returnsubstr($result,8);
}
else
{
return'';
}
}
else
{
returnstr_replace('=','',base64_encode($result));
}
}
publicfunctionget_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。