user_reset_password.php

<?php
/*

UserFrosting Version: 0.1
By Alex Weissman
Copyright (c) 2014

Based on the UserCake user management system, v2.0.2.
Copyright (c) 2009-2012

UserFrosting, like UserCake, is 100% free and open-source.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the 'Software'), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

// Request method: GET or POST

require_once("models/config.php");

set_error_handler('logAllErrors');

if (!securePage($_SERVER['PHP_SELF'])){
	addAlert("danger", "Whoops, looks like you don't have permission to reset your password.");
	header("Location: " . getReferralPage());
	exit();
}

//User has confirmed they want their password changed.  Generate a random password and email it to them.
if(!empty($_GET["confirm"]))
{
	$token = trim($_GET["confirm"]);
	
	if($token == "" || !validateActivationToken($token,TRUE))
	{
		$errors[] = lang("FORGOTPASS_INVALID_TOKEN");
	}
	else
	{
		$rand_pass = getUniqueCode(15); //Get unique code
		$secure_pass = generateHash($rand_pass); //Generate random hash
		$userdetails = fetchUserDetails(NULL,$token); //Fetchs user details
		$mail = new userCakeMail();		
		
		//Setup our custom hooks
		$hooks = array(
			"searchStrs" => array("#GENERATED-PASS#","#USERNAME#"),
			"subjectStrs" => array($rand_pass,$userdetails["display_name"])
			);
		
		if(!$mail->newTemplateMsg("your-lost-password.txt",$hooks))
		{
			$errors[] = lang("MAIL_TEMPLATE_BUILD_ERROR");
		}
		else
		{	
			if(!$mail->sendMail($userdetails["email"],"Your new password"))
			{
				$errors[] = lang("MAIL_ERROR");
			}
			else
			{
				if(!updatePasswordFromToken($secure_pass,$token))
				{
					$errors[] = lang("SQL_ERROR");
				}
				else
				{	
					if(!flagLostPasswordRequest($userdetails["user_name"],0))
					{
						$errors[] = lang("SQL_ERROR");
					}
					else {
						$successes[]  = lang("FORGOTPASS_NEW_PASS_EMAIL");
					}
				}
			}
		}
	}
}

//User has denied this request
if(!empty($_GET["deny"]))
{
	$token = trim($_GET["deny"]);
	
	if($token == "" || !validateActivationToken($token,TRUE))
	{
		$errors[] = lang("FORGOTPASS_INVALID_TOKEN");
	}
	else
	{
		
		$userdetails = fetchUserDetails(NULL,$token);
		
		if(!flagLostPasswordRequest($userdetails["user_name"],0))
		{
			$errors[] = lang("SQL_ERROR");
		}
		else {
			$successes[] = lang("FORGOTPASS_REQUEST_CANNED");
		}
	}
}

//Forms posted
if(!empty($_POST))
{
	$email = $_POST["email"];
	$username = sanitize($_POST["username"]);
	
	//Perform some validation
	//Feel free to edit / change as required
	
	if(trim($email) == "")
	{
		$errors[] = lang("ACCOUNT_SPECIFY_EMAIL");
	}
	//Check to ensure email is in the correct format / in the db
	else if(!isValidEmail($email) || !emailExists($email))
	{
		$errors[] = lang("ACCOUNT_INVALID_EMAIL");
	}
	
	if(trim($username) == "")
	{
		$errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
	}
	else if(!usernameExists($username))
	{
		$errors[] = lang("ACCOUNT_INVALID_USERNAME");
	}
	
	if(count($errors) == 0)
	{
		
		//Check that the username / email are associated to the same account
		if(!emailUsernameLinked($email,$username))
		{
			$errors[] =  lang("ACCOUNT_USER_OR_EMAIL_INVALID");
		}
		else
		{
			//Check if the user has any outstanding lost password requests
			$userdetails = fetchUserDetails($username);
			if($userdetails["lost_password_request"] == 1)
			{
				$errors[] = lang("FORGOTPASS_REQUEST_EXISTS");
			}
			else
			{
				//Email the user asking to confirm this change password request
				//We can use the template builder here
				
				//We use the activation token again for the url key it gets regenerated everytime it's used.
				
				$mail = new userCakeMail();
				$confirm_url = lang("CONFIRM")."\n".$websiteUrl."user_reset_password.php?confirm=".$userdetails["activation_token"];
				$deny_url = lang("DENY")."\n".$websiteUrl."user_reset_password.php?deny=".$userdetails["activation_token"];
				
				//Setup our custom hooks
				$hooks = array(
					"searchStrs" => array("#CONFIRM-URL#","#DENY-URL#","#USERNAME#"),
					"subjectStrs" => array($confirm_url,$deny_url,$userdetails["user_name"])
					);
				
				if(!$mail->newTemplateMsg("lost-password-request.txt",$hooks))
				{
					$errors[] = lang("MAIL_TEMPLATE_BUILD_ERROR");
				}
				else
				{
					if(!$mail->sendMail($userdetails["email"],"Lost password request"))
					{
						$errors[] = lang("MAIL_ERROR");
					}
					else
					{
						//Update the DB to show this account has an outstanding request
						if(!flagLostPasswordRequest($userdetails["user_name"],1))
						{
							$errors[] = lang("SQL_ERROR");
						}
						else {
							
							$successes[] = lang("FORGOTPASS_REQUEST_SUCCESS");
						}
					}
				}
			}
		}
	}
}

restore_error_handler();

foreach ($errors as $error){
  addAlert("danger", $error);
}
foreach ($successes as $success){
  addAlert("success", $success);
}

if (isset($_POST['ajaxMode']) and $_POST['ajaxMode'] == "true" ){
  echo json_encode(array(
	"errors" => count($errors),
	"successes" => count($successes)));
} else {
  // Send successes to the login page, while errors should return them to the forgot_password page.
  if(count($errors) == 0) {
	header('Location: login.php');
	exit();
  } else {
	header('Location: forgot_password.php');
	exit();	
  }
}

?>