getpassword.php

<?php
/*
<Secret Center, open source member management system>
Copyright (C) 2012-2017 Secret Center開發團隊 <http://center.gdsecret.net/#team>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Also add information on how to contact you by electronic and paper mail.

  If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source.  For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code.  There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.

  You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<http://www.gnu.org/licenses/>.
*/

require_once('Connections/SQL.php');
require_once('config.php');
require_once('include/view.php');

if(isset($_POST['username'])&&isset($_POST['email'])&&trim($_POST['username'])!=''&&trim($_POST['email'])!=''){
	$_username=sc_namefilter($_POST['username']);
	
	$_member = sc_get_result("SELECT * FROM `member` WHERE `username` = '%s'",array($_username));
	
	if($_member['num_rows'] < 1 or $_POST['email']!=$_member['row']['email']){
		$_GET['nouser']=true;
	}else{
		
		$_subject="重設密碼 - {$center['site_name']}";
		$_body="{$_member['row']['username']} 您好
		\n 請點擊以下連結重設您的密碼 
		\n ".sc_get_headurl()."getpassword.php?id={$_member['row']['id']}&auth=".md5($_member['row']['rekey'])."
		\n (若是您沒有申請重設密碼，請忽略此信件)";
		
		$_header="From: {$center['site_name']} <{$center['mail']}> \n";
		$_header.='Content-type:text/plain; charset=UTF-8';
		mb_internal_encoding('UTF-8');
		$_subject=mb_encode_mimeheader($_subject,'UTF-8');
		
		if(mail($_member['row']['email'],$_subject,$_body,$_header)){
			$_step=2;
		}
	}
}elseif(isset($_GET['auth'])&&trim($_GET['auth'])!=''&&isset($_GET['id'])&&abs($_GET['id'])!=''){
	$_uid=abs($_GET['id']);
	$_member = sc_get_result("SELECT * FROM member WHERE `id` = '%d'",array($_uid));
	if($_member['num_rows']>0){
		if(md5($_member['row']['rekey'])==$_GET['auth']){
			$_rekey_SQL=sprintf(",`rekey` = '%s'",substr(sc_keygen($_GET['auth']),0,16));
			$_step=3;
			
			if(isset($_POST['password'])&&trim($_POST['password'])!=''){
				$SQL->query("UPDATE member SET `password` = '%s' $_rekey_SQL WHERE `id` = '%d'",array(sc_password($_POST['password'],$_member['row']['username']),$_uid));
				$_step=4;
				header("Location: index.php?getpassword");
				exit;
			}
		}
	}
}
$view = new View('include/theme/default.html','include/nav.php',NULL,$center['site_name'],'重設密碼');
?>
<?php if(isset($_GET['nouser'])){ ?>
<div class="alert alert-danger">帳號或電子信箱出現錯誤</div>
<?php } ?>
<h2>重設密碼</h2>
<?php if(!isset($_step)){ ?>
<form class="form-xs" action="getpassword.php" method="POST">
	<div class="form-group">
		<label for="username">請輸入您的帳號：</label>
		<input class="form-control" name="username" type="text" required="required">
	</div>
	<div class="form-group">
		<label for="email">請輸入您的電子信箱：</label>
		<input class="form-control" name="email" type="email" required="required">
	</div>
	<input class="btn btn-primary" type="submit" value="下一步">
</form>
<?php }elseif($_step==2){ ?>
	<div class="alert alert-success">密碼重設連結已經發送至您的電子信箱囉！</div>
<?php }elseif($_step==3){ ?>
<form class="form-xs" action="getpassword.php?id=<?php echo $_uid.'&auth='.$_GET['auth']; ?>" method="POST">
	<p>會員「<?php echo $_member['row']['username']; ?>」歡迎你</p>
	<div class="form-group">
		<label>請重新設定你的密碼：</label>
		<input class="form-control" name="password" type="password">
	</div>
	<input class="btn btn-primary" type="submit" value="送出修改">
</form>
<?php } ?>
<?php
$view->render();
?>