<?php
$database = './usersdb.php';
$success_page = '';
$activated_page = basename(__FILE__);
$error_message = "";
if (!file_exists($database))
{
   die('User database not found!');
   exit;
}
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['form_name']) && $_POST['form_name'] == 'signupform')
{
   $newusername = $_POST['username'];
   $newemail = $_POST['email'];
   $newpassword = $_POST['password'];
   $confirmpassword = $_POST['confirmpassword'];
   $newfullname = $_POST['fullname'];
   $website = $_SERVER['HTTP_HOST'];
   $script = $_SERVER['SCRIPT_NAME'];
   $timestamp = time();
   $code = md5($website.$timestamp.rand(100000, 999999));
   if ($newpassword != $confirmpassword)
   {
      $error_message = 'Password and Confirm Password are not the same!';
   }
   else
   if (!preg_match("/^[A-Za-z0-9-_!@$]{1,50}$/", $newusername))
   {
      $error_message = 'Username is not valid, please check and try again!';
   }
   else
   if (!preg_match("/^[A-Za-z0-9-_!@$]{1,50}$/", $newpassword))
   {
      $error_message = 'Password is not valid, please check and try again!';
   }
   else
   if (!preg_match("/^[A-Za-z0-9-_!@$.' &]{1,50}$/", $newfullname))
   {
      $error_message = 'Fullname is not valid, please check and try again!';
   }
   else
   if (!preg_match("/^.+@.+\..+$/", $newemail))
   {
      $error_message = 'Email is not a valid email address. Please check and try again.';
   }
   $items = file($database, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
   foreach($items as $line)
   {
      list($username, $password, $email, $fullname) = explode('|', trim($line));
      if ($newusername == $username)
      {
         $error_message = 'Username already used. Please select another username.';
         break;
      }
   }
   if (empty($error_message))
   {
      $file = fopen($database, 'a');
      fwrite($file, $newusername);
      fwrite($file, '|');
      fwrite($file, md5($newpassword));
      fwrite($file, '|');
      fwrite($file, $newemail);
      fwrite($file, '|');
      fwrite($file, $newfullname);
      fwrite($file, '|0|');
      fwrite($file, $code);
      fwrite($file, "\r\n");
      fclose($file);
      $subject = 'ellcome to Workshops on Applied Stochastic Processes';
      $message = 'A new account has been setup.';
      $message .= "\r\nUsername: ";
      $message .= $newusername;
      $message .= "\r\nPassword: ";
      $message .= $newpassword;
      $message .= "\r\n";
      $message .= "\r\nhttp://".$website.$script."?user=".$newusername."&code=$code";
      $header  = "From: asoltanir@yahoo.com"."\r\n";
      $header .= "Reply-To: asoltanir@yahoo.com"."\r\n";
      $header .= "MIME-Version: 1.0"."\r\n";
      $header .= "Content-Type: text/plain; charset=utf-8"."\r\n";
      $header .= "Content-Transfer-Encoding: 8bit"."\r\n";
      $header .= "X-Mailer: PHP v".phpversion();
      mail($newemail, $subject, $message, $header);
      header('Location: '.$success_page);
      exit;
   }
}
else
if (isset($_GET['code']) && isset($_GET['user']))
{
   $found = false;
   $items = file($database, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
   foreach($items as $line)
   {
      list($username, $password, $emailaddress, $fullname, $active, $code) = explode('|', trim($line));
      if ($username == $_GET['user'] && $code == $_GET['code'])
      {
         $found = true;
      }
   }
   if ($found == true)
   {
      $file = fopen($database, 'w');
      foreach($items as $line)
      {
         $values = explode('|', trim($line));
         if ($_GET['user'] == $values[0])
         {
            $values[4] = "1";
            $values[5] = "NA";
            $line = '';
            for ($i=0; $i < count($values); $i++)
            {
               if ($i != 0)
                  $line .= '|';
               $line .= $values[$i];
            }
         }
         fwrite($file, $line);
         fwrite($file, "\r\n");
      }
      fclose($file);
   }
   else
   {
      die ('User not found!');
   }
   header("refresh:5;url=".$activated_page);
   echo 'Your user account was succesfully activated. You\'ll be redirected in about 5 secs. If not, click <a href="'.$activated_page.'">here</a>.';
   exit;
}
?>
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<html lang="en-us">
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<ul id="CssMenu2" role="menubar" class="nav">
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<form name="SiteSearch1_form" id="SiteSearch1_form" role="search" accept-charset="UTF-8" onsubmit="return searchPage(features)">
<input type="text" id="SiteSearch1" style="position:absolute;left:665px;top:77px;width:140px;height:15px;z-index:3;" name="SiteSearch1" value="" spellcheck="false" placeholder="Search this website" role="searchbox"></form>
<img src="files_23thwasp_hm/img0008.png" id="Banner1" alt="Workshops on Applied Stochastic Processes" style="border-width:0;position:absolute;left:0px;top:0px;width:1000px;height:71px;z-index:4;" width="1000" height="71">
<div id="wb_Signup1" style="position:absolute;left:326px;top:121px;width:347px;height:539px;z-index:5;">
<form name="signupform" method="post" accept-charset="UTF-8" action="<?php echo basename(__FILE__); ?>" id="signupform">
<input type="hidden" name="form_name" value="signupform">
<table id="Signup1">
<tr>
   <td class="header">Sign up for a new account</td>
</tr>
<tr>
   <td class="label"><label for="fullname">Full Name</label></td>
</tr>
<tr>
   <td class="row"><input class="input" name="fullname" type="text" id="fullname"></td>
</tr>
<tr>
   <td class="label"><label for="username">User Name</label></td>
</tr>
<tr>
   <td class="row"><input class="input" name="username" type="text" id="username"></td>
</tr>
<tr>
   <td class="label"><label for="password">Password</label></td>
</tr>
<tr>
   <td class="row"><input class="input" name="password" type="password" id="password"></td>
</tr>
<tr>
   <td class="label"><label for="confirmpassword">Confirm Password</label></td>
</tr>
<tr>
   <td class="row"><input class="input" name="confirmpassword" type="password" id="confirmpassword"></td>
</tr>
<tr>
   <td class="label"><label for="email">E-mail</label></td>
</tr>
<tr>
   <td class="row"><input class="input" name="email" type="text" id="email"></td>
</tr>
<tr>
   <td><?php echo $error_message; ?></td>
</tr>
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   <td style="text-align:center;vertical-align:bottom"><input class="button" type="submit" name="signup" value="Create User" id="signup"></td>
</tr>
</table>
</form>
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<li role="menuitem" class="nav-item firstmain"><a class="nav-link" href="./index.html" target="_self"><i class="fa fa-home">&nbsp;</i>Home</a>
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<li role="menuitem" class="nav-item"><a class="nav-link" href="./HM_UnderConstraction.html" target="_self" title="Iranian Statisticians and Probabilitians"><i class="fa fa-gg">&nbsp;</i>ISP</a>
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<li role="menuitem" class="nav-item firstitem"><a class="nav-link withsubmenu" href="javascript:void(0)" target="_self"><i class="fa fa-history">&nbsp;</i>1st&nbsp;-&nbsp;10th&nbsp;workshops&nbsp;(2009-2014)</a>

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<li role="menuitem" class="nav-item firstitem"><a class="nav-link" href="" target="_self">1st&nbsp;Workshop&nbsp;2009&nbsp;shiraz&nbsp;university</a>
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<li role="menuitem" class="nav-item"><a class="nav-link withsubmenu" href="javascript:void(0)" target="_self"><i class="fa fa-history">&nbsp;</i>11th&nbsp;-&nbsp;20th&nbsp;workshops&nbsp;(2015-2019)</a>

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<li role="menuitem" class="nav-item firstitem"><a class="nav-link" href="" target="_self">11th</a>
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