dir/mod/lostpass.php

<?php


function lostpass_post(&$a) {

	$email = notags(trim($_POST['login-name']));
	if(! $email)
		goaway($a->get_baseurl());

	$r = q("SELECT * FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' ) LIMIT 1",
		dbesc($email),
		dbesc($email)
	);
	if(! count($r))
		goaway($a->get_baseurl());
	$uid = $r[0]['uid'];
	$username = $r[0]['username'];

	$new_password = autoname(12) . mt_rand(100,9999);
	$new_password_encoded = hash('whirlpool',$new_password);

	$r = q("UPDATE `user` SET `pwdreset` = '%s' WHERE `uid` = %d LIMIT 1",
		dbesc($new_password_encoded),
		intval($uid)
	);
	if($r)
		notice( t('Password reset request issued. Check your email.') . EOL);

	$email_tpl = load_view_file("view/lostpass_eml.tpl");
	$email_tpl = replace_macros($email_tpl, array(
			'$sitename' => $a->config['sitename'],
			'$siteurl' =>  $a->get_baseurl(),
			'$username' => $username,
			'$email' => $email,
			'$reset_link' => $a->get_baseurl() . '/lostpass?verify=' . $new_password
	));

	$res = mail($email, sprintf( t('Password reset requested at %s'),$a->config['sitename']),
			$email_tpl, 'From: ' . t('Administrator') . '@' . $_SERVER[SERVER_NAME]);

	goaway($a->get_baseurl());
}


function lostpass_content(&$a) {


	if(x($_GET,'verify')) {
		$verify = $_GET['verify'];
		$hash = hash('whirlpool', $verify);

		$r = q("SELECT * FROM `user` WHERE `pwdreset` = '%s' LIMIT 1",
			dbesc($hash)
		);
		if(! count($r)) {
			notice( t("Request could not be verified. \x28You may have previously submitted it.\x29 Password reset failed.") . EOL);
			goaway($a->get_baseurl());
			return;
		}
		$uid = $r[0]['uid'];
		$username = $r[0]['username'];
		$email = $r[0]['email'];

		$new_password = autoname(6) . mt_rand(100,9999);
		$new_password_encoded = hash('whirlpool',$new_password);

		$r = q("UPDATE `user` SET `password` = '%s', `pwdreset` = ''  WHERE `uid` = %d LIMIT 1",
			dbesc($new_password_encoded),
			intval($uid)
		);
		if($r) {
			$tpl = load_view_file('view/pwdreset.tpl');
			$o .= replace_macros($tpl,array(
				'$newpass' => $new_password,
				'$baseurl' => $a->get_baseurl()
			));
				notice("Your password has been reset." . EOL);



			$email_tpl = load_view_file("view/passchanged_eml.tpl");
			$email_tpl = replace_macros($email_tpl, array(
			'$sitename' => $a->config['sitename'],
			'$siteurl' =>  $a->get_baseurl(),
			'$username' => $username,
			'$email' => $email,
			'$new_password' => $new_password,
			'$uid' => $newuid ));

			$res = mail($email,"Your password has changed at {$a->config['sitename']}",$email_tpl,"From: Administrator@{$_SERVER[SERVER_NAME]}");

			return $o;
		}
	
	}
	else {
		$tpl = load_view_file('view/lostpass.tpl');

		$o .= replace_macros($tpl,array(
			'$title' => t('Forgot your Password?'),
			'$desc' => t('Enter your email address and submit to have your password reset. Then check your email for further instructions.'),
			'$name' => t('Nickname or Email: '),
			'$submit' => t('Reset') 
		));

		return $o;
	}

}