<?php
/* For licensing terms, see /license.txt */

use Chamilo\CoreBundle\Framework\Container;
use ChamiloSession as Session;

/**
 * This script displays a form for registering new users.
 *
 * @package    chamilo.auth
 */

//quick hack to adapt the registration form result to the selected registration language
if (!empty($_POST['language'])) {
    $_GET['language'] = $_POST['language'];
}
require_once __DIR__.'/../inc/global.inc.php';
$hideHeaders = isset($_GET['hide_headers']);

$allowedFields = [
    'official_code',
    'phone',
    'status',
    'language',
    'extra_fields',
    'address',
];

$allowedFieldsConfiguration = api_get_configuration_value('allow_fields_inscription');
if ($allowedFieldsConfiguration !== false) {
    $allowedFields = isset($allowedFieldsConfiguration['fields']) ? $allowedFieldsConfiguration['fields'] : [];
    $allowedFields['extra_fields'] = isset($allowedFieldsConfiguration['extra_fields']) ? $allowedFieldsConfiguration['extra_fields'] : [];
}

$extraFieldsLoaded = false;
$htmlHeadXtra[] = api_get_password_checker_js('#username', '#pass1');
// User is not allowed if Terms and Conditions are disabled and
// registration is disabled too.
$isNotAllowedHere = api_get_setting('allow_terms_conditions') === 'false' &&
    api_get_setting('allow_registration') === 'false';

if ($isNotAllowedHere) {
    api_not_allowed(true, get_lang('Sorry, you are trying to access the registration page for this portal, but registration is currently disabled. Please contact the administrator (see contact information in the footer). If you already have an account on this site.'));
}

if (!empty($_SESSION['user_language_choice'])) {
    $user_selected_language = $_SESSION['user_language_choice'];
} elseif (!empty($_SESSION['_user']['language'])) {
    $user_selected_language = $_SESSION['_user']['language'];
} else {
    $user_selected_language = api_get_setting('platformLanguage');
}

$extraConditions = api_get_configuration_value('show_conditions_to_user');

if ($extraConditions && isset($extraConditions['conditions'])) {
    // Create user extra fields for the conditions
    $userExtraField = new ExtraField('user');
    $extraConditions = $extraConditions['conditions'];
    foreach ($extraConditions as $condition) {
        $exists = $userExtraField->get_handler_field_info_by_field_variable($condition['variable']);
        if ($exists == false) {
            $params = [
                'field_type' => ExtraField::FIELD_TYPE_CHECKBOX,
                'variable' => $condition['variable'],
                'display_text' => $condition['display_text'],
                'default_value' => '',
                'visible_to_self' => true,
                'visible_to_others' => false,
                'changeable' => true,
                'filter' => false,
            ];
            $userExtraField->save($params);
        }
    }
}

$form = new FormValidator('registration');
$user_already_registered_show_terms = false;
if (api_get_setting('allow_terms_conditions') === 'true') {
    $user_already_registered_show_terms = isset($_SESSION['term_and_condition']['user_id']);
}

$sessionPremiumChecker = Session::read('SessionIsPremium');
$sessionId = Session::read('sessionId');

// Direct Link Session Subscription feature #12220
$sessionRedirect = isset($_REQUEST['s']) && !empty($_REQUEST['s']) ? $_REQUEST['s'] : null;
$onlyOneCourseSessionRedirect = isset($_REQUEST['cr']) && !empty($_REQUEST['cr']) ? $_REQUEST['cr'] : null;

if (api_get_configuration_value('allow_redirect_to_session_after_inscription_about')) {
    if (!empty($sessionRedirect)) {
        Session::write('session_redirect', $sessionRedirect);
        Session::write('only_one_course_session_redirect', $onlyOneCourseSessionRedirect);
    }
}

// Direct Link Subscription feature #5299
$course_code_redirect = isset($_REQUEST['c']) && !empty($_REQUEST['c']) ? $_REQUEST['c'] : null;
$exercise_redirect = isset($_REQUEST['e']) && !empty($_REQUEST['e']) ? $_REQUEST['e'] : null;

if (!empty($course_code_redirect)) {
    Session::write('course_redirect', $course_code_redirect);
    Session::write('exercise_redirect', $exercise_redirect);
}

if ($user_already_registered_show_terms === false &&
    api_get_setting('allow_registration') !== 'false'
) {
    // STUDENT/TEACHER
    if (api_get_setting('allow_registration_as_teacher') != 'false') {
        if (in_array('status', $allowedFields)) {
            $form->addRadio(
                'status',
                get_lang('What do you want to do?'),
                [
                    STUDENT => '<p class="caption">'.get_lang('Follow courses').'</p>',
                    COURSEMANAGER => '<p class="caption">'.get_lang('Teach courses').'</p>',
                ],
                ['class' => 'register-profile']
            );
            $form->addRule('status', get_lang('Required field'), 'required');
        }
    }

    if (api_is_western_name_order()) {
        // FIRST NAME and LAST NAME
        $form->addElement('text', 'firstname', get_lang('First name'), ['size' => 40]);
        $form->addElement('text', 'lastname', get_lang('Last name'), ['size' => 40]);
    } else {
        // LAST NAME and FIRST NAME
        $form->addElement('text', 'lastname', get_lang('Last name'), ['size' => 40]);
        $form->addElement('text', 'firstname', get_lang('First name'), ['size' => 40]);
    }
    $form->applyFilter(['lastname', 'firstname'], 'trim');
    $form->addRule('lastname', get_lang('Required field'), 'required');
    $form->addRule('firstname', get_lang('Required field'), 'required');

    // EMAIL
    $form->addElement('text', 'email', get_lang('e-mail'), ['size' => 40]);
    if (api_get_setting('registration', 'email') === 'true') {
        $form->addRule('email', get_lang('Required field'), 'required');
    }

    if (api_get_setting('login_is_email') === 'true') {
        $form->applyFilter('email', 'trim');
        if (api_get_setting('registration', 'email') != 'true') {
            $form->addRule('email', get_lang('Required field'), 'required');
        }
        $form->addRule(
            'email',
            sprintf(
                get_lang('The login needs to be maximum %s characters long'),
                (string) USERNAME_MAX_LENGTH
            ),
            'maxlength',
            USERNAME_MAX_LENGTH
        );
        $form->addRule('email', get_lang('This login is already in use'), 'username_available');
    }

    $form->addRule('email', get_lang('e-mailWrong'), 'email');

    // USERNAME
    if (api_get_setting('login_is_email') != 'true') {
        $form->addText(
            'username',
            get_lang('Username'),
            true,
            [
                'id' => 'username',
                'size' => USERNAME_MAX_LENGTH,
                'autocomplete' => 'off',
            ]
        );
        $form->applyFilter('username', 'trim');
        $form->addRule('username', get_lang('Required field'), 'required');
        $form->addRule(
            'username',
            sprintf(
                get_lang('The login needs to be maximum %s characters long'),
                (string) USERNAME_MAX_LENGTH
            ),
            'maxlength',
            USERNAME_MAX_LENGTH
        );
        $form->addRule('username', get_lang('Your login can only contain letters, numbers and _.-'), 'username');
        $form->addRule('username', get_lang('This login is already in use'), 'username_available');
    }

    // PASSWORD
    $form->addElement(
        'password',
        'pass1',
        get_lang('Pass'),
        ['id' => 'pass1', 'size' => 20, 'autocomplete' => 'off']
    );

    $form->addElement(
        'password',
        'pass2',
        get_lang('Confirm password'),
        ['id' => 'pass2', 'size' => 20, 'autocomplete' => 'off']
    );
    $form->addRule('pass1', get_lang('Required field'), 'required');
    $form->addRule('pass2', get_lang('Required field'), 'required');
    $form->addRule(['pass1', 'pass2'], get_lang('You have typed two different passwords'), 'compare');
    $form->addPasswordRule('pass1');

    // PHONE
    if (in_array('phone', $allowedFields)) {
        $form->addElement(
            'text',
            'phone',
            get_lang('Phone'),
            ['size' => 20]
        );
        if (api_get_setting('registration', 'phone') == 'true') {
            $form->addRule(
                'phone',
                get_lang('Required field'),
                'required'
            );
        }
    }

    // Language
    if (in_array('language', $allowedFields)) {
        if (api_get_setting('registration', 'language') == 'true') {
            $form->addSelectLanguage(
                'language',
                get_lang('Language')
            );
        }
    }

    if (in_array('official_code', $allowedFields)) {
        $form->addElement(
            'text',
            'official_code',
            get_lang('Code'),
            ['size' => 40]
        );
        if (api_get_setting('registration', 'officialcode') == 'true') {
            $form->addRule(
                'official_code',
                get_lang('Required field'),
                'required'
            );
        }
    }

    // EXTENDED FIELDS
    if (api_get_setting('extended_profile') == 'true' &&
        api_get_setting('extendedprofile_registration', 'mycomptetences') == 'true'
    ) {
        $form->addHtmlEditor(
            'competences',
            get_lang('My competences'),
            false,
            false,
            ['ToolbarSet' => 'register', 'Width' => '100%', 'Height' => '130']
        );
    }

    if (api_get_setting('extended_profile') == 'true' &&
        api_get_setting('extendedprofile_registration', 'mydiplomas') == 'true'
    ) {
        $form->addHtmlEditor(
            'diplomas',
            get_lang('My diplomas'),
            false,
            false,
            ['ToolbarSet' => 'register', 'Width' => '100%', 'Height' => '130']
        );
    }

    if (api_get_setting('extended_profile') == 'true' &&
        api_get_setting('extendedprofile_registration', 'myteach') == 'true'
    ) {
        $form->addHtmlEditor(
            'teach',
            get_lang('What I am able to teach'),
            false,
            false,
            ['ToolbarSet' => 'register', 'Width' => '100%', 'Height' => '130']
        );
    }

    if (api_get_setting('extended_profile') == 'true' &&
        api_get_setting('extendedprofile_registration', 'mypersonalopenarea') == 'true'
    ) {
        $form->addHtmlEditor(
            'openarea',
            get_lang('My personal open area'),
            false,
            false,
            ['ToolbarSet' => 'register', 'Width' => '100%', 'Height' => '130']
        );
    }

    if (api_get_setting('extended_profile') === 'true') {
        if (api_get_setting('extendedprofile_registration', 'mycomptetences') === 'true' &&
            api_get_setting('extendedprofile_registrationrequired', 'mycomptetences') === 'true'
        ) {
            $form->addRule('competences', get_lang('Required field'), 'required');
        }
        if (api_get_setting('extendedprofile_registration', 'mydiplomas') === 'true' &&
            api_get_setting('extendedprofile_registrationrequired', 'mydiplomas') === 'true'
        ) {
            $form->addRule('diplomas', get_lang('Required field'), 'required');
        }
        if (api_get_setting('extendedprofile_registration', 'myteach') === 'true' &&
            api_get_setting('extendedprofile_registrationrequired', 'myteach') === 'true'
        ) {
            $form->addRule('teach', get_lang('Required field'), 'required');
        }
        if (api_get_setting('extendedprofile_registration', 'mypersonalopenarea') === 'true' &&
            api_get_setting('extendedprofile_registrationrequired', 'mypersonalopenarea') === 'true'
        ) {
            $form->addRule('openarea', get_lang('Required field'), 'required');
        }
    }

    // EXTRA FIELDS
    if (array_key_exists('extra_fields', $allowedFields) ||
        in_array('extra_fields', $allowedFields)
    ) {
        $extraField = new ExtraField('user');
        $extraFieldList = [];
        if (isset($allowedFields['extra_fields']) && is_array($allowedFields['extra_fields'])) {
            $extraFieldList = $allowedFields['extra_fields'];
        }
        $requiredFields = api_get_configuration_value('required_extra_fields_in_inscription');

        if (!empty($requiredFields) && $requiredFields['options']) {
            $requiredFields = $requiredFields['options'];
        }

        $returnParams = $extraField->addElements(
            $form,
            0,
            [],
            false,
            false,
            $extraFieldList,
            [],
            false,
            false,
            false,
            [],
            [],
            [],
            false,
            $requiredFields
        );
        $extraFieldsLoaded = true;
    }

    // CAPTCHA
    $captcha = api_get_setting('allow_captcha');
    $allowCaptcha = $captcha === 'true';

    if ($allowCaptcha) {
        $ajax = api_get_path(WEB_AJAX_PATH).'form.ajax.php?a=get_captcha';
        $options = [
            'width' => 220,
            'height' => 90,
            'callback' => $ajax.'&var='.basename(__FILE__, '.php'),
            'sessionVar' => basename(__FILE__, '.php'),
            'imageOptions' => [
                'font_size' => 20,
                'font_path' => api_get_path(SYS_FONTS_PATH).'opensans/',
                'font_file' => 'OpenSans-Regular.ttf',
                //'output' => 'gif'
            ],
        ];

        $captcha_question = $form->addElement(
            'CAPTCHA_Image',
            'captcha_question',
            '',
            $options
        );
        $form->addElement('static', null, null, get_lang('Click on the image to load a new one.'));

        $form->addElement(
            'text',
            'captcha',
            get_lang('Enter the letters you see.'),
            ['size' => 40]
        );
        $form->addRule(
            'captcha',
            get_lang('Enter the characters you see on the image'),
            'required',
            null,
            'client'
        );
        $form->addRule(
            'captcha',
            get_lang('The text you entered doesn\'t match the picture.'),
            'CAPTCHA',
            $captcha_question
        );
    }
}

if (isset($_SESSION['user_language_choice']) && $_SESSION['user_language_choice'] != '') {
    $defaults['language'] = $_SESSION['user_language_choice'];
} else {
    $defaults['language'] = api_get_setting('platformLanguage');
}
if (!empty($_GET['username'])) {
    $defaults['username'] = Security::remove_XSS($_GET['username']);
}
if (!empty($_GET['email'])) {
    $defaults['email'] = Security::remove_XSS($_GET['email']);
}

if (!empty($_GET['phone'])) {
    $defaults['phone'] = Security::remove_XSS($_GET['phone']);
}

$defaults['status'] = STUDENT;
$defaults['extra_mail_notify_invitation'] = 1;
$defaults['extra_mail_notify_message'] = 1;
$defaults['extra_mail_notify_group_message'] = 1;

$form->applyFilter('__ALL__', 'Security::remove_XSS');
$form->setDefaults($defaults);
$content = null;

$tool_name = get_lang('Registration');

if (!CustomPages::enabled()) {
    // Load terms & conditions from the current lang
    if (api_get_setting('allow_terms_conditions') === 'true') {
        $get = array_keys($_GET);
        if (isset($get)) {
            if (isset($get[0]) && $get[0] == 'legal') {
                $language = api_get_interface_language();
                $language = api_get_language_id($language);
                $term_preview = LegalManager::get_last_condition($language);
                if (!$term_preview) {
                    //look for the default language
                    $language = api_get_setting('platformLanguage');
                    $language = api_get_language_id($language);
                    $term_preview = LegalManager::get_last_condition($language);
                }
                Display::display_header(get_lang('Terms and Conditions'));
                if (!empty($term_preview['content'])) {
                    echo $term_preview['content'];

                    $termExtraFields = new ExtraFieldValue('terms_and_condition');
                    $values = $termExtraFields->getAllValuesByItem($term_preview['id']);
                    foreach ($values as $value) {
                        echo '<h3>'.$value['display_text'].'</h3><br />'.$value['value'].'<br />';
                    }
                } else {
                    echo get_lang('Coming soon...');
                }
                Display::display_footer();
                exit;
            }
        }
    }

    if (api_get_setting('allow_terms_conditions') === 'true' && $user_already_registered_show_terms) {
        $tool_name = get_lang('Terms and Conditions');
    }
}

$home = api_get_path(SYS_APP_PATH).'home/';
if (api_is_multiple_url_enabled()) {
    $access_url_id = api_get_current_access_url_id();
    if ($access_url_id != -1) {
        $url_info = api_get_access_url($access_url_id);
        $url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $url_info['url']));
        $clean_url = api_replace_dangerous_char($url);
        $clean_url = str_replace('/', '-', $clean_url);
        $clean_url .= '/';
        $home_old = api_get_path(SYS_APP_PATH).'home/';
        $home = api_get_path(SYS_APP_PATH).'home/'.$clean_url;
    }
}

if (file_exists($home.'register_top_'.$user_selected_language.'.html')) {
    $home_top_temp = @(string) file_get_contents($home.'register_top_'.$user_selected_language.'.html');
    $open = str_replace('{rel_path}', api_get_path(REL_PATH), $home_top_temp);
    $open = api_to_system_encoding($open, api_detect_encoding(strip_tags($open)));
    if (!empty($open)) {
        $content = '<div class="well well-sm help-registration">'.$open.'</div>';
    }
}

// Forbidden to self-register
if ($isNotAllowedHere) {
    api_not_allowed(true, get_lang('Sorry, you are trying to access the registration page for this portal, but registration is currently disabled. Please contact the administrator (see contact information in the footer). If you already have an account on this site.'));
}

if (api_get_setting('allow_registration') === 'approval') {
    $content .= Display::return_message(get_lang('Your account has to be approved'));
}

$showTerms = false;
// Terms and conditions
if (api_get_setting('allow_terms_conditions') === 'true' && $user_already_registered_show_terms) {
    if (!api_is_platform_admin()) {
        if (api_get_setting('show_terms_if_profile_completed') === 'true') {
            $userInfo = api_get_user_info();
            if ($userInfo && $userInfo['status'] != ANONYMOUS) {
                if ((int) $userInfo['profile_completed'] !== 1) {
                    api_not_allowed(true);
                }
            }
        }
    }

    // Get user language ignoring the platform language
    $language = api_get_interface_language();
    $language = api_get_language_id($language);
    $term_preview = LegalManager::get_last_condition($language);

    if (!$term_preview) {
        //we load from the platform
        $language = api_get_setting('platformLanguage');
        $language = api_get_language_id($language);
        $term_preview = LegalManager::get_last_condition($language);

        //if is false we load from english
        if (!$term_preview) {
            $language = api_get_language_id('english'); //this must work
            $term_preview = LegalManager::get_last_condition($language);
        }
    }

    // Version and language
    $form->addHidden('legal_accept_type', $term_preview['version'].':'.$term_preview['language_id']);
    $form->addHidden('legal_info', $term_preview['id'].':'.$term_preview['language_id']);

    // Show if only HTML type
    if ($term_preview['type'] == '2') {
        $termExtraFields = new ExtraFieldValue('terms_and_condition');
        $values = $termExtraFields->getAllValuesByItem($term_preview['id']);
        foreach ($values as $value) {
            //if ($value['variable'] === 'category') {
            $form->addLabel($value['display_text'], $value['value']);
            //}
        }
    }

    if ($term_preview['type'] == 1) {
        $form->addElement(
            'checkbox',
            'legal_accept',
            null,
            get_lang('I have read and agree to the').'&nbsp;<a href="inscription.php?legal" target="_blank">'.get_lang(
                'Terms and Conditions'
            ).'</a>'
        );
        $form->addRule('legal_accept', get_lang('We need you to accept our treatment of your data in order to provide you with this service. If you want to register an account, please accept the terms and click Submit. If you don\'t accept, no personal data will be treated by us about you.'), 'required');
    } else {
        $preview = LegalManager::show_last_condition($term_preview);
        $form->addElement('label', null, $preview);
    }
    $showTerms = true;
}

$allowDoubleValidation = api_get_configuration_value('allow_double_validation_in_registration');

$formContainsSendButton = false;
if ($allowDoubleValidation && $showTerms == false) {
    $htmlHeadXtra[] = '<script>
        $(function() {
            $("#pre_validation").click(function() {
                $(this).hide();
                $("#final_button").show();
            });
        });
    </script>';

    $form->addLabel(
        null,
        Display::url(
            get_lang('Validate'),
            'javascript:void',
            ['class' => 'btn btn-default', 'id' => 'pre_validation']
        )
    );
    $form->addHtml('<div id="final_button" style="display: none">');
    $form->addLabel(
        null,
        Display::return_message(get_lang('You confirm that you really want to subscribe to this plateform.'), 'info', false)
    );
    $form->addButton('submit', get_lang('Register'), '', 'primary');
    $form->addHtml('</div>');
    $formContainsSendButton = true;
} else {
    // In normal cases (without double validation), we check if the
    // registration is allowed in any way or if the user is already registered
    // but needs to confirm terms. If not, send not allowed message
    if (
        api_get_setting('allow_registration') === 'approval' ||
        api_get_setting('allow_registration') === 'true' ||
        api_get_setting('allow_registration') === 'confirmation' ||
        $user_already_registered_show_terms ||
        $showTerms
    ) {
        $form->addButtonNext(get_lang('Register'));
        $formContainsSendButton = true;
    }
}

// Blocks page because there's any action to do.
if (!$formContainsSendButton) {
    api_not_allowed(true);
}

$course_code_redirect = Session::read('course_redirect');
$sessionToRedirect = Session::read('session_redirect');

if ($extraConditions && $extraFieldsLoaded) {
    // Set conditions as "required" and also change the labels
    foreach ($extraConditions as $condition) {
        /** @var HTML_QuickForm_group $element */
        $element = $form->getElement('extra_'.$condition['variable']);
        if ($element) {
            $children = $element->getElements();
            /** @var HTML_QuickForm_checkbox $child */
            foreach ($children as $child) {
                $child->setText(get_lang($condition['display_text']));
            }
            $form->setRequired($element);
            if (!empty($condition['text_area'])) {
                $element->setLabel(
                    [
                        '',
                        '<div class="form-control" disabled=disabled style="height: 100px; overflow: auto;">'.
                        get_lang(nl2br($condition['text_area'])).
                        '</div>',
                    ]
                );
            }
        }
    }
}

if ($form->validate()) {
    $values = $form->getSubmitValues(1);
    // Make *sure* the login isn't too long
    if (isset($values['username'])) {
        $values['username'] = api_substr($values['username'], 0, USERNAME_MAX_LENGTH);
    }

    if (api_get_setting('allow_registration_as_teacher') === 'false') {
        $values['status'] = STUDENT;
    }

    if (empty($values['official_code']) && !empty($values['username'])) {
        $values['official_code'] = api_strtoupper($values['username']);
    }

    if (api_get_setting('login_is_email') === 'true') {
        $values['username'] = $values['email'];
    }

    if ($user_already_registered_show_terms &&
        api_get_setting('allow_terms_conditions') === 'true'
    ) {
        $user_id = $_SESSION['term_and_condition']['user_id'];
        $is_admin = UserManager::is_admin($user_id);
        Session::write('is_platformAdmin', $is_admin);
    } else {
        // Moved here to include extra fields when creating a user. Formerly placed after user creation
        // Register extra fields
        $extras = [];
        foreach ($values as $key => $value) {
            if (substr($key, 0, 6) == 'extra_') {
                //an extra field
                $extras[substr($key, 6)] = $value;
            } elseif (strpos($key, 'remove_extra_') !== false) {
                $extra_value = Security::filter_filename(urldecode(key($value)));
                // To remove from user_field_value and folder
                UserManager::update_extra_field_value(
                    $user_id,
                    substr($key, 13),
                    $extra_value
                );
            }
        }

        $status = isset($values['status']) ? $values['status'] : STUDENT;
        $phone = isset($values['phone']) ? $values['phone'] : null;
        $values['language'] = isset($values['language']) ? $values['language'] : api_get_interface_language();
        $values['address'] = isset($values['address']) ? $values['address'] : '';

        // Creates a new user
        $user_id = UserManager::create_user(
            $values['firstname'],
            $values['lastname'],
            $status,
            $values['email'],
            $values['username'],
            $values['pass1'],
            $values['official_code'],
            $values['language'],
            $phone,
            null,
            PLATFORM_AUTH_SOURCE,
            null,
            1,
            0,
            $extras,
            null,
            true,
            false,
            $values['address'],
            false,
            $form
        );

        // Update the extra fields
        $count_extra_field = count($extras);
        if ($count_extra_field > 0 && is_int($user_id)) {
            foreach ($extras as $key => $value) {
                // For array $value -> if exists key 'tmp_name' then must not be empty
                // This avoid delete from user field value table when doesn't upload a file
                if (is_array($value)) {
                    if (array_key_exists('tmp_name', $value) && empty($value['tmp_name'])) {
                        //Nothing to do
                    } else {
                        if (array_key_exists('tmp_name', $value)) {
                            $value['tmp_name'] = Security::filter_filename($value['tmp_name']);
                        }
                        if (array_key_exists('name', $value)) {
                            $value['name'] = Security::filter_filename($value['name']);
                        }
                        UserManager::update_extra_field_value($user_id, $key, $value);
                    }
                } else {
                    UserManager::update_extra_field_value($user_id, $key, $value);
                }
            }
        }

        if ($user_id) {
            // Storing the extended profile
            $store_extended = false;
            $sql = "UPDATE ".Database::get_main_table(TABLE_MAIN_USER)." SET ";

            if (api_get_setting('extended_profile') == 'true' &&
                api_get_setting('extendedprofile_registration', 'mycomptetences') == 'true'
            ) {
                $sql_set[] = "competences = '".Database::escape_string($values['competences'])."'";
                $store_extended = true;
            }

            if (api_get_setting('extended_profile') == 'true' &&
                api_get_setting('extendedprofile_registration', 'mydiplomas') == 'true'
            ) {
                $sql_set[] = "diplomas = '".Database::escape_string($values['diplomas'])."'";
                $store_extended = true;
            }

            if (api_get_setting('extended_profile') == 'true' &&
                api_get_setting('extendedprofile_registration', 'myteach') == 'true'
            ) {
                $sql_set[] = "teach = '".Database::escape_string($values['teach'])."'";
                $store_extended = true;
            }

            if (api_get_setting('extended_profile') == 'true' &&
                api_get_setting('extendedprofile_registration', 'mypersonalopenarea') == 'true'
            ) {
                $sql_set[] = "openarea = '".Database::escape_string($values['openarea'])."'";
                $store_extended = true;
            }

            if ($store_extended) {
                $sql .= implode(',', $sql_set);
                $sql .= " WHERE user_id = ".intval($user_id)."";
                Database::query($sql);
            }

            // Saving user to Session if it was set
            if (!empty($sessionToRedirect) && !$sessionPremiumChecker) {
                $sessionInfo = api_get_session_info($sessionToRedirect);
                if (!empty($sessionInfo)) {
                    SessionManager::subscribeUsersToSession(
                        $sessionToRedirect,
                        [$user_id],
                        SESSION_VISIBLE_READ_ONLY,
                        false
                    );
                }
            }

            // Saving user to course if it was set.
            if (!empty($course_code_redirect)) {
                $course_info = api_get_course_info($course_code_redirect);
                if (!empty($course_info)) {
                    if (in_array(
                        $course_info['visibility'],
                        [
                            COURSE_VISIBILITY_OPEN_PLATFORM,
                            COURSE_VISIBILITY_OPEN_WORLD,
                        ]
                    )
                    ) {
                        CourseManager::subscribeUser(
                            $user_id,
                            $course_info['code']
                        );
                    }
                }
            }

            /* If the account has to be approved then we set the account to inactive,
            sent a mail to the platform admin and exit the page.*/
            if (api_get_setting('allow_registration') === 'approval') {
                // 1. Send mail to all platform admin
                $emailsubject = get_lang('Approval for new account').': '.$values['username'];
                $emailbody = get_lang('Approval for new account')."\n";
                $emailbody .= get_lang('Username').': '.$values['username']."\n";

                if (api_is_western_name_order()) {
                    $emailbody .= get_lang('First name').': '.$values['firstname']."\n";
                    $emailbody .= get_lang('Last name').': '.$values['lastname']."\n";
                } else {
                    $emailbody .= get_lang('Last name').': '.$values['lastname']."\n";
                    $emailbody .= get_lang('First name').': '.$values['firstname']."\n";
                }
                $emailbody .= get_lang('e-mail').': '.$values['email']."\n";
                $emailbody .= get_lang('Status').': '.$values['status']."\n\n";

                $url_edit = Display::url(
                    api_get_path(WEB_CODE_PATH).'admin/user_edit.php?user_id='.$user_id,
                    api_get_path(WEB_CODE_PATH).'admin/user_edit.php?user_id='.$user_id
                );

                $emailbody .= get_lang('Manage user').": $url_edit";

                if (api_get_configuration_value('send_inscription_notification_to_general_admin_only')) {
                    $email = api_get_setting('emailAdministrator');
                    $firtname = api_get_setting('administratorSurname');
                    $lastname = api_get_setting('administratorName');

                    api_mail_html("$firtname $lastname", $email, $emailsubject, $emailbody);
                } else {
                    $admins = UserManager::get_all_administrators();
                    foreach ($admins as $admin_info) {
                        MessageManager::send_message(
                            $admin_info['user_id'],
                            $emailsubject,
                            $emailbody,
                            [],
                            [],
                            null,
                            null,
                            null,
                            null,
                            $user_id
                        );
                    }
                }

                // 2. set account inactive
                UserManager::disable($user_id);

                // 3. exit the page
                unset($user_id);

                Display::display_header($tool_name);
                echo Display::page_header($tool_name);
                echo $content;
                Display::display_footer();
                exit;
            } elseif (api_get_setting('allow_registration') === 'confirmation') {
                // 1. Send mail to the user
                $thisUser = api_get_user_entity($user_id);
                UserManager::sendUserConfirmationMail($thisUser);

                // 2. set account inactive
                UserManager::disable($user_id);

                // 3. exit the page
                unset($user_id);

                Display::addFlash(
                    Display::return_message(
                        get_lang('YouNeedConfirmYourAccountViae-mailToAccessThePlatform'),
                        'warning'
                    )
                );

                Display::display_header($tool_name);
                //echo $content;
                Display::display_footer();
                exit;
            }
        }
    }

    // Terms & Conditions
    if (api_get_setting('allow_terms_conditions') === 'true') {
        // Update the terms & conditions.
        if (isset($values['legal_accept_type'])) {
            $cond_array = explode(':', $values['legal_accept_type']);
            if (!empty($cond_array[0]) && !empty($cond_array[1])) {
                $time = time();
                $conditionToSave = (int) $cond_array[0].':'.(int) $cond_array[1].':'.$time;
                UserManager::update_extra_field_value(
                    $user_id,
                    'legal_accept',
                    $conditionToSave
                );

                Event::addEvent(
                    LOG_TERM_CONDITION_ACCEPTED,
                    LOG_USER_OBJECT,
                    api_get_user_info($user_id),
                    api_get_utc_datetime()
                );

                $bossList = UserManager::getStudentBossList($user_id);
                if (!empty($bossList)) {
                    $bossList = array_column($bossList, 'boss_id');
                    $currentUserInfo = api_get_user_info($user_id);
                    foreach ($bossList as $bossId) {
                        $subjectEmail = sprintf(
                            get_lang('User %s signed the agreement.'),
                            $currentUserInfo['complete_name']
                        );
                        $contentEmail = sprintf(
                            get_lang('User %s signed the agreement.TheY'),
                            $currentUserInfo['complete_name'],
                            api_get_local_time($time)
                        );

                        MessageManager::send_message_simple(
                            $bossId,
                            $subjectEmail,
                            $contentEmail,
                            $user_id
                        );
                    }
                }
            }
        }
        $values = api_get_user_info($user_id);
    }

    /* SESSION REGISTERING */
    /* @todo move this in a function */
    $_user['firstName'] = stripslashes($values['firstname']);
    $_user['lastName'] = stripslashes($values['lastname']);
    $_user['mail'] = $values['email'];
    $_user['language'] = $values['language'];
    $_user['user_id'] = $user_id;
    Session::write('_user', $_user);

    $is_allowedCreateCourse = isset($values['status']) && $values['status'] == 1;
    $usersCanCreateCourse = api_is_allowed_to_create_course();

    Session::write('is_allowedCreateCourse', $is_allowedCreateCourse);

    // Stats
    Event::eventLogin($user_id);

    // last user login date is now
    $user_last_login_datetime = 0; // used as a unix timestamp it will correspond to : 1 1 1970
    Session::write('user_last_login_datetime', $user_last_login_datetime);
    $recipient_name = api_get_person_name($values['firstname'], $values['lastname']);
    $text_after_registration =
        '<p>'.
        get_lang('Dear').' '.
        stripslashes(Security::remove_XSS($recipient_name)).',<br /><br />'.
        get_lang('Your personal settings have been registered').".</p>";

    $form_data = [
        'button' => Display::button(
            'next',
            get_lang('Next'),
            ['class' => 'btn btn-primary btn-large']
        ),
        'message' => '',
        'action' => api_get_path(WEB_PATH).'user_portal.php',
        'go_button' => '',
    ];

    if (api_get_setting('allow_terms_conditions') === 'true' && $user_already_registered_show_terms) {
        if (api_get_setting('load_term_conditions_section') === 'login') {
            $form_data['action'] = api_get_path(WEB_PATH).'user_portal.php';
        } else {
            $courseInfo = api_get_course_info();
            if (!empty($courseInfo)) {
                $form_data['action'] = $courseInfo['course_public_url'].'?id_session='.api_get_session_id();
                $cidReset = true;
                Session::erase('_course');
                Session::erase('_cid');
            } else {
                $form_data['action'] = api_get_path(WEB_PATH).'user_portal.php';
            }
        }
    } else {
        if (!empty($values['email'])) {
            $text_after_registration .= '<p>'.get_lang('An e-mail has been sent to remind you of your login and password').'.</p>';
        }

        if ($is_allowedCreateCourse) {
            if ($usersCanCreateCourse) {
                $form_data['message'] = '<p>'.get_lang('You can now create your course').'</p>';
            }
            $form_data['action'] = api_get_path(WEB_CODE_PATH).'create_course/add_course.php';

            if (api_get_setting('course_validation') === 'true') {
                $form_data['button'] = Display::button(
                    'next',
                    get_lang('Create a course request'),
                    ['class' => 'btn btn-primary btn-large']
                );
            } else {
                $form_data['button'] = Display::button(
                    'next',
                    get_lang('Create a course'),
                    ['class' => 'btn btn-primary btn-large']
                );
                $form_data['go_button'] = '&nbsp;&nbsp;<a href="'.api_get_path(WEB_PATH).'index.php'.'">'.
                    Display::span(
                        get_lang('Next'),
                        ['class' => 'btn btn-primary btn-large']
                    ).'</a>';
            }
        } else {
            if (api_get_setting('allow_students_to_browse_courses') == 'true') {
                $form_data['action'] = 'courses.php?action=subscribe';
                $form_data['message'] = '<p>'.get_lang('You can now select, in the list, the course you want access to').".</p>";
            } else {
                $form_data['action'] = api_get_path(WEB_PATH).'user_portal.php';
            }
            $form_data['button'] = Display::button(
                'next',
                get_lang('Next'),
                ['class' => 'btn btn-primary btn-large']
            );
        }
    }

    if ($sessionPremiumChecker && $sessionId) {
        Session::erase('SessionIsPremium');
        Session::erase('sessionId');
        header('Location:'.api_get_path(WEB_PLUGIN_PATH).'buycourses/src/process.php?i='.$sessionId.'&t=2');
        exit;
    }

    SessionManager::redirectToSession();

    $redirectBuyCourse = Session::read('buy_course_redirect');
    if (!empty($redirectBuyCourse)) {
        $form_data['action'] = api_get_path(WEB_PATH).$redirectBuyCourse;
        Session::erase('buy_course_redirect');
    }

    $form_data = CourseManager::redirectToCourse($form_data);
    $form_register = new FormValidator('form_register', 'post', $form_data['action']);
    if (!empty($form_data['message'])) {
        $form_register->addElement('html', $form_data['message'].'<br /><br />');
    }

    if ($usersCanCreateCourse) {
        $form_register->addElement('html', $form_data['button']);
    } else {
        if (!empty($redirectBuyCourse)) {
            $form_register->addButtonNext(get_lang('Next'));
        } else {
            $form_register->addElement('html', $form_data['go_button']);
        }
    }

    $text_after_registration .= $form_register->returnForm();

    // Just in case
    Session::erase('course_redirect');
    Session::erase('exercise_redirect');
    Session::erase('session_redirect');
    Session::erase('only_one_course_session_redirect');

    if (CustomPages::enabled() && CustomPages::exists(CustomPages::REGISTRATION_FEEDBACK)) {
        CustomPages::display(
            CustomPages::REGISTRATION_FEEDBACK,
            ['info' => $text_after_registration]
        );
    } else {
        $tpl = new Template($tool_name);
        $tpl->assign('inscription_content', $content);
        $tpl->assign('text_after_registration', $text_after_registration);
        $tpl->assign('hide_header', $hideHeaders);
        $inscription = $tpl->get_template('auth/inscription.tpl');
        $tpl->display($inscription);
    }
} else {
    // Custom pages
    if (CustomPages::enabled() && CustomPages::exists(CustomPages::REGISTRATION)) {
        CustomPages::display(
            CustomPages::REGISTRATION,
            ['form' => $form, 'content' => $content]
        );
    } else {
        if (!api_is_anonymous()) {
            // Saving user to course if it was set.
            if (!empty($course_code_redirect)) {
                $course_info = api_get_course_info($course_code_redirect);
                if (!empty($course_info)) {
                    if (in_array(
                        $course_info['visibility'],
                        [
                            COURSE_VISIBILITY_OPEN_PLATFORM,
                            COURSE_VISIBILITY_OPEN_WORLD,
                        ]
                    )
                    ) {
                        CourseManager::subscribeUser(
                            $user_id,
                            $course_info['code']
                        );
                    }
                }
            }
            CourseManager::redirectToCourse([]);
        }

        $tpl = new Template($tool_name);

        $tpl->assign('inscription_header', Display::page_header($tool_name));
        $tpl->assign('inscription_content', $content);
        $tpl->assign('form', $form->returnForm());
        $tpl->assign('hide_header', $hideHeaders);
        $page = Container::getPage('inscription');
        $tpl->assign('page', $page);

        $inscription = $tpl->get_template('auth/inscription.tpl');
        $tpl->display($inscription);
    }
}