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start.php
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start.php
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<?php
/**
* Registration form
*
* @author Ismayil Khayredinov <info@hypejunction.com>
* @copyright Copyright (c) 2015, Ismayil Khayredinov
*/
require_once __DIR__ . '/autoloader.php';
elgg_register_event_handler('init', 'system', 'forms_register_init');
/**
* Initialize the plugin
* @return void
*/
function forms_register_init() {
if (elgg_is_active_plugin('forms_validation')) {
elgg_extend_view('input/text', 'elements/forms/validation/username');
elgg_extend_view('input/password', 'elements/forms/validation/password');
elgg_extend_view('forms/register', 'elements/forms/validation/register');
}
elgg_extend_view('theme_sandbox/forms', 'theme_sandbox/forms/register');
elgg_register_action('validation/validusername', __DIR__ . '/actions/validation/validusername.php', 'public');
elgg_register_action('validation/availableusername', __DIR__ . '/actions/validation/availableusername.php', 'public');
elgg_register_plugin_hook_handler('action', 'register', 'forms_register_prepare_action_values', 1);
elgg_register_plugin_hook_handler('register', 'user', 'forms_register_user_hook', 1);
}
/**
* Generates a unique available and valid username
*
* @param string $username Username prefix
* @return string
*/
function forms_register_generate_username($username = '') {
$available = false;
$username = iconv('UTF-8', 'ASCII//TRANSLIT', $username);
$blacklist = '/[\x{0080}-\x{009f}\x{00a0}\x{2000}-\x{200f}\x{2028}-\x{202f}\x{3000}\x{e000}-\x{f8ff}]/u';
$blacklist2 = array(' ', '\'', '/', '\\', '"', '*', '&', '?', '#', '%', '^', '(', ')', '{', '}', '[', ']', '~', '?', '<', '>', ';', '|', '¬', '`', '@', '-', '+', '=');
$username = preg_replace($blacklist, '', $username);
$username = str_replace($blacklist2, '.', $username);
$ia = elgg_set_ignore_access(true);
$ha = access_get_show_hidden_status();
access_show_hidden_entities(true);
$minlength = elgg_get_config('minusername') ? : 4;
if ($username) {
$fill = $minlength - strlen($username);
} else {
$fill = 8;
}
$algo = elgg_get_plugin_setting('autogen_username_algo', 'forms_register', 'first_name_only');
if ($algo == 'full_name' && $fill <= 0) {
$separator = '.';
} else {
$separator = '';
}
if ($fill > 0) {
$suffix = (new ElggCrypto())->getRandomString($fill);
$username = "$username$separator$suffix";
}
$iterator = 0;
while (!$available) {
if ($iterator > 0) {
$username = "$username$separator$iterator";
}
$user = get_user_by_username($username);
$available = !$user;
try {
if ($available) {
validate_username($username);
}
} catch (Exception $e) {
if ($iterator >= 100) {
// too many failed attempts
$username = (new ElggCrypto())->getRandomString(8);
}
}
$iterator++;
}
access_show_hidden_entities($ha);
elgg_set_ignore_access($ia);
return strtolower($username);
}
/**
* Validates and prepares values for 'register' action
* @return void
*/
function forms_register_prepare_action_values() {
elgg_make_sticky_form('register');
$first_name = get_input('first_name');
$last_name = get_input('last_name');
$email = get_input('email', '');
$name = get_input('name');
$username = get_input('username');
$password = get_input('password');
list($email_username) = explode('@', $email);
if (elgg_get_plugin_setting('first_last_name', 'forms_register') && !$name) {
if (!$first_name || !$last_name) {
register_error(elgg_echo('actions:register:error:first_last_name'));
forward(REFERRER);
}
set_input('name', "$first_name $last_name");
} else if (elgg_get_plugin_setting('autogen_name', 'forms_register') && !$name) {
set_input('name', $email_username);
}
if (elgg_get_plugin_setting('autogen_username', 'forms_register') && !$username) {
$algo = elgg_get_plugin_setting('autogen_username_algo', 'forms_register', 'first_name_only');
switch ($algo) {
case 'first_name_only' :
$username = $first_name ? : $email_username;
break;
case 'full_name' :
$username = $first_name && $last_name ? "$first_name.$last_name" : $email_username;
break;
case 'email' :
$username = $email_username;
break;
case 'alnum' :
$username = '';
break;
}
$username = forms_register_generate_username($username);
set_input('username', $username);
}
if (elgg_get_plugin_setting('autogen_password', 'forms_register')) {
$password = generate_random_cleartext_password();
set_input('password', $password);
set_input('password2', $password);
} else {
if ($min_strength = elgg_get_plugin_setting('min_password_strength', 'forms_register')) {
// @todo: add other user inputs
$zxcvbn = new \ZxcvbnPhp\Zxcvbn();
$strength = $zxcvbn->passwordStrength($password);
if ($strength < $min_strength) {
register_error(elgg_echo('actions:register:error:password_strength'));
forward(REFERER);
}
}
if (elgg_get_plugin_setting('hide_password_repeat', 'forms_register')) {
set_input('password2', $password);
}
}
}
/**
* Saves additional input values on user registration
*
* @param string $hook "register"
* @param string $type "user"
* @param string $return Allow registration to proceed
* @param string $params Hook params
* @return void
*/
function forms_register_user_hook($hook, $type, $return, $params) {
$user = elgg_extract('user', $params);
if (elgg_get_plugin_setting('first_last_name', 'forms_register')) {
$user->first_name = get_input('first_name');
$user->last_name = get_input('last_name');
}
}