PHP 验证登陆类

用法

/* * 例子 * * $Auth=new Auth(); * $Auth->login('123@123.com','123'); * $Auth->logout(); * echo $r->init(); ***/

<?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’]; }}?> * 例子 * * $Auth=new Auth(); * $Auth->login('123@123.com','123'); * $Auth->logout(); * echo $r->init(); ***/