<?php

/*

Copyright 2018 Murray Hayes

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

*/

session_start();

include_once "utils.php";
include_once "DOMUtils.php";
include_once "consts.php";
include_once "database.php";
include_once "formUtils.php";


if (isset($_SESSION['cookieMonster']))
//if (true)
{
  
  $doc = returnDoc();
  
  $root = returnRoot($doc);
  $root = $doc->appendChild($root);
  $root->appendChild(generateHead($doc));
  
  $body = $doc->createElement('body');
  $root->appendChild($body);
  
  $body->appendChild(generateMastHead($doc, $baseDir));
  
      
  /*
   *  Insert content here.
   */

  if ($_SERVER['REQUEST_METHOD'] == 'POST')
  {
    if (isset($_POST['TokenID']) && isset($_POST['password1']) && isset($_POST['password2']))
    {
      /*
       * We have a TokenID and two passwords on POST
       * If everything checks out, reset the password.
       */
      
      $token = cleanInput($_POST['TokenID']);
      
      if ($_POST['password1'] === $_POST['password2'])
      {
        $newPassword = $_POST['password1'];
        $memberID = FALSE;
        $memberID = verifyPasswordResetToken($token);
        if (!($memberID === FALSE))
        {
          /*
           * everything looks good, update the password and clear the token.
           */
          
        }
      }
    }
    if (isset($_POST['useremail']))
    {
      /*
       * Send a password reset url
       */
      
      $targetEmail = cleanInput($_POST['useremail']);
      
      /*
       * Apply some sanity to this because there is no userid to log
       * abusive requests to.
       */
      
      if (strpos($targetEmail, ';') === FALSE &&
          strpos($targetEmail, '"') === FALSE &&
          strpos($targetEmail, "'") === FALSE &&
          strpos($targetEmail, '?') === FALSE &&
          strpos($targetEmail, "/") === FALSE &&
          strpos($targetEmail, "\\") === FALSE)
      {
        $mailArray = returnPasswordResetTokenArray($targetEmail);
        if (!is_null($mailArray))
        {
          $mailTo = $mailArray['email'];
          $token = $mailArray['token'];
          //print ("token is " . strlen($token) . " characters long");
          $firstName = $mailArray['firstName'];
          $lastName = $mailArray['lastName'];
          $subject = "Request to change your password has been recieved";
          $message = "Hello $firstName, we have received a request to change " .
              "your password.  If this request was not made by you do not " .
              "respond to this email. If you continue to receive these requests " .
              "please let us know. To reset your password, follow this link: " .
              "http://$siteDomain$baseDir/password-reset.php?TokenID=$token " .
              "and you will be guided through the rest of the process.  Again, " .
              "it is safe to ignore this email if you do not want to reset your " .
              "password.  Abuse can be reported to mailto:info@protospace.ca ";
          if (!$passwordResetMailSilence)
          {
            mail($mailTo, $subject, $message);
          }
          else
          {
            $label = $doc->createElement('h3');
            $label->appendChild($doc->createTextNode("This message would have been sent but it was silenced"));
            $body->appendChild($label);
            
            $label = $doc->createElement('p');
            $label->appendChild($doc->createTextNode($message));
            $body->appendChild($label);
          }
        }
      }
    }
  }
  else
  {
    if (isset($_GET['TokenID']))
    {
      $memberID = FALSE;
      /*
       * Check the token and reset the password
       */
      $token = cleanInput($_GET['TokenID']);

      /*
       * Tokens will have very specific formats that should be checked.
       */
      
      /** TODO: 
       *    Make this more better, less sucky
       */
      if (strlen($token) == 64)
      {
        $memberID = verifyPasswordResetToken($token);
        
        if (!($memberID === FALSE))
        {
          $label = $doc->createElement('h3');
          $label->appendChild($doc->createTextNode("Reset Password"));
          $body->appendChild($label);
          
          $form = createForm($doc, "password-reset.php");
          $fieldSet = $doc->createElement('fieldset');
          $fieldSetDiv = $doc->createElement('div');
          $fieldSet->appendChild($fieldSetDiv);
          
          $input = $doc->createElement('input');
          $input->setAttribute('type', 'hidden');
          $input->setAttribute('name', 'TokenID');
          $input->setAttribute('value', $token);
          $fieldSetDiv->appendChild($input);
          
          $label = $doc->createElement('label', 'Enter new password:');
          $label->setAttribute('for', 'password1');
          $label->setAttribute('class', 'CourseEditorInputLabel');
          $fieldSetDiv->appendChild($label);
          $input = $doc->createElement('input');
          $input->setAttribute('type', 'password');
          $input->setAttribute('name', 'password1');
          $input->setAttribute('value', '');
          $input->setAttribute('autocomplete', 'off');
          $input->setAttribute('required', 'required');
          //$input->setAttribute('');
          $fieldSetDiv->appendChild($input);

          $label = $doc->createElement('label', 'Confirm new password:');
          $label->setAttribute('for', 'password2');
          $label->setAttribute('class', 'CourseEditorInputLabel');
          $fieldSetDiv->appendChild($label);
          $input = $doc->createElement('input');
          $input->setAttribute('type', 'password');
          $input->setAttribute('name', 'password2');
          $input->setAttribute('value', '');
          $input->setAttribute('autocomplete', 'off');
          $input->setAttribute('required', 'required');
          //$input->setAttribute('');
          $fieldSetDiv->appendChild($input);
          
          $input = $doc->createElement('input');
          $input->setAttribute('type', 'submit');
          $input->setAttribute('value', 'Reset Password');
          $fieldSetDiv->appendChild($input);
          
          $form->appendChild($fieldSet);
          $body->appendChild($form);
        }
      }
    }
    else
    {
      /*
       * Offer a password reset
       */
      $label = $doc->createElement('h3');
      $label->appendChild($doc->createTextNode("Reset Password"));
      $body->appendChild($label);
      
      $form = createForm($doc, "password-reset.php");
      $fieldSet = $doc->createElement('fieldset');
      $fieldSetDiv = $doc->createElement('div');
      $fieldSet->appendChild($fieldSetDiv);
    
    /*  
      $label = $doc->createElement('label', 'Username:');
      $label->setAttribute('for', 'username');
      $label->setAttribute('class', 'CourseEditorInputLabel');
      $fieldSetDiv->appendChild($label);
      $input = createElement('input');
      $input->setAttribute('type', 'text');
      $input->setAttribute('name', 'username');
      $input->setAttribute('autocomplete', 'off');
      $input->setAttribute('');
      $fieldSetDiv->appendChild($input);
    */
      
      $label = $doc->createElement('label', 'Email:');
      $label->setAttribute('for', 'useremail');
      $label->setAttribute('class', 'CourseEditorInputLabel');
      $fieldSetDiv->appendChild($label);
      $input = $doc->createElement('input');
      $input->setAttribute('type', 'text');
      $input->setAttribute('name', 'useremail');
      $input->setAttribute('autocomplete', 'off');
      if (isset($_GET['id']) && 
          (returnAdminStatus($_SESSION['MemberID']) || returnDirectorStatus($_SESSION['MemberID'])))
      {
        $input->setAttribute('value', returnUserEmail((int)cleanInput($_GET['id'])));
      }
      //$input->setAttribute('');
      $fieldSetDiv->appendChild($input);
      
      $input = $doc->createElement('input');
      $input->setAttribute('type', 'submit');
      $form->appendChild($input);
      
      $form->appendChild($fieldSet);
      $body->appendChild($form);
    }
  }
  $body->appendChild(generateFooter($doc));
  if ($prettyPretty)
    $doc->formatOutput = true;
  outputDoc($doc);
}
else
{
  generateCookieMonster();
}

?>