<?php
/* For licensing terms, see /license.txt */
/**
 * SCRIPT PURPOSE :
 *
 * This script allows users to retrieve the password of their profile(s)
 * on the basis of their e-mail address. The password is send via email
 * to the user.
 *
 * Special case : If the password are encrypted in the database, we have
 * to generate a new one.
*
*	@todo refactor, move relevant functions to code libraries
*
*	@package chamilo.auth
*/

require_once '../inc/global.inc.php';

// Custom pages
// Had to move the form handling in here, because otherwise there would
// already be some display output.

// Forbidden to retrieve the lost password
if (api_get_setting('allow_lostpassword') == 'false') {
	api_not_allowed(true);
}

$reset = Request::get('reset');
$userId = Request::get('id');

$this_section = SECTION_CAMPUS;

$tool_name = get_lang('LostPassword');

if ($reset && $userId) {
    $messageText = Login::reset_password($reset, $userId, true);

    if (CustomPages::enabled() && CustomPages::exists(CustomPages::INDEX_UNLOGGED)) {
        CustomPages::display(
            CustomPages::INDEX_UNLOGGED,
            ['info' => $messageText]
        );
        exit;
    }

    Display::addFlash(
        Display::return_message($messageText, 'info', false)
    );
    header('Location: ' . api_get_path(WEB_PATH));
    exit;
}

$form = new FormValidator('lost_password');
$form->addHeader($tool_name);
$form->addText('user', [get_lang('LoginOrEmailAddress'), get_lang('EnterEmailUserAndWellSendYouPassword')], true);
$form->addButtonSend(get_lang('Send'));

if ($form->validate()) {
    $values = $form->exportValues();
    $user = Login::get_user_accounts_by_username($values['user']);

    if (!$user) {
        $messageText = get_lang('NoUserAccountWithThisEmailAddress');

        if (CustomPages::enabled() && CustomPages::exists(CustomPages::LOST_PASSWORD)) {
            CustomPages::display(
                CustomPages::LOST_PASSWORD,
                ['info' => $messageText]
            );
            exit;
        }

        Display::addFlash(
            Display::return_message($messageText, 'error', false)
        );
        header('Location: ' . api_get_self());
        exit;
    }

    $passwordEncryption = api_get_configuration_value('password_encryption');

    if ($passwordEncryption === 'none') {
        $messageText = Login::send_password_to_user($user, true);

        if (CustomPages::enabled() && CustomPages::exists(CustomPages::INDEX_UNLOGGED)) {
            CustomPages::display(
                CustomPages::INDEX_UNLOGGED,
                ['info' => $messageText]
            );
            exit;
        }

        Display::addFlash(
            Display::return_message($messageText, 'info', false)
        );
        header('Location: ' . api_get_path(WEB_PATH));
        exit;
    }

    if ($user['auth_source'] == 'extldap') {
        Display::addFlash(
            Display::return_message(get_lang('CouldNotResetPasswordBecauseLDAP'), 'info', false)
        );
        header('Location: ' . api_get_path(WEB_PATH));
        exit;
    }

    $userResetPasswordSetting = api_get_setting('user_reset_password');

    if ($userResetPasswordSetting === 'true') {
        $userObj = Database::getManager()->getRepository('ChamiloUserBundle:User')->find($user['uid']);

        Login::sendResetEmail($userObj, true);

        if (CustomPages::enabled() && CustomPages::exists(CustomPages::INDEX_UNLOGGED)) {
            CustomPages::display(
                CustomPages::INDEX_UNLOGGED,
                ['info' => get_lang('CheckYourEmailAndFollowInstructions')]
            );
            exit;
        }

        header('Location: ' . api_get_path(WEB_PATH));
        exit;
    }

    $messageText = Login::handle_encrypted_password($user, true);

    if (CustomPages::enabled() && CustomPages::exists(CustomPages::INDEX_UNLOGGED)) {
        CustomPages::display(
            CustomPages::INDEX_UNLOGGED,
            ['info' => $messageText]
        );
        exit;
    }

    Display::addFlash(
        Display::return_message($messageText, 'info', false)
    );
    header('Location: ' . api_get_path(WEB_PATH));
    exit;
}

if (CustomPages::enabled() && CustomPages::exists(CustomPages::LOST_PASSWORD)) {
    CustomPages::display(
        CustomPages::LOST_PASSWORD,
        ['form' => $form->returnForm()]
    );
    exit;
}

$controller = new IndexManager($tool_name);
$controller->set_login_form();
$controller->tpl->assign('form', $form->returnForm());
$template = $controller->tpl->get_template('auth/lost_password.tpl');
$controller->tpl->display($template);