misuzu/public-legacy/auth/register.php

<?php
namespace Misuzu;

use RuntimeException;
use Misuzu\Users\User;

if($msz->isLoggedIn()) {
    url_redirect('index');
    return;
}

$users = $msz->getUsers();
$roles = $msz->getRoles();
$config = $msz->getConfig();

$register = !empty($_POST['register']) && is_array($_POST['register']) ? $_POST['register'] : [];
$notices = [];
$ipAddress = $_SERVER['REMOTE_ADDR'];
$countryCode = $_SERVER['COUNTRY_CODE'] ?? 'XX';

// there is currently no ip banning system.
// because people can have a wide variety of ip address
//  it doesn't make sense to include a single row for it
//  in the user bans table
// add better ip tracking and reintroduce the blacklist
// was thinking of having both a storage table and an expanded table
//  with the storage table contains range syntaxes and whatnot
//  and the expanded table just having seas of raw ips in it with a primary key
//  for fast matching
$restricted = '';

$loginAttempts = $msz->getLoginAttempts();
$remainingAttempts = $loginAttempts->countRemainingAttempts($ipAddress);

while(!$restricted && !empty($register)) {
    if(!CSRF::validateRequest()) {
        $notices[] = 'Was unable to verify the request, please try again!';
        break;
    }

    if($remainingAttempts < 1) {
        $notices[] = "There are too many failed login attempts from your IP address, you may not create an account right now.";
        break;
    }

    if(empty($register['username']) || empty($register['password']) || empty($register['email']) || empty($register['question'])
        || !is_string($register['username']) || !is_string($register['password']) || !is_string($register['email']) || !is_string($register['question'])) {
        $notices[] = "You haven't filled in all fields.";
        break;
    }

    $checkSpamBot = mb_strtolower($register['question']);
    $spamBotValid = [
        '21', 'twentyone', 'twenty-one', 'twenty one',
    ];
    $spamBotHint = [
        '19', 'nineteen', 'nine-teen', 'nine teen',
    ];

    if(!in_array($checkSpamBot, $spamBotValid)) {
        if(in_array($checkSpamBot, $spamBotHint))
            $notices[] = '_play_hint';

        $notices[] = 'Human only cool club, robots begone.';
        break;
    }

    $usernameValidation = User::validateUsername($register['username']);
    if($usernameValidation !== '')
        $notices[] = User::usernameValidationErrorString($usernameValidation);

    $emailValidation = User::validateEMailAddress($register['email']);
    if($emailValidation !== '')
        $notices[] = $emailValidation === 'in-use'
            ? 'This e-mail address has already been used!'
            : 'The e-mail address you entered is invalid!';

    if($register['password_confirm'] !== $register['password'])
        $notices[] = 'The given passwords don\'t match.';

    if(User::validatePassword($register['password']) !== '')
        $notices[] = 'Your password is too weak!';

    if(!empty($notices))
        break;

    $defaultRoleInfo = $roles->getDefaultRole();

    try {
        $userInfo = $users->createUser(
            $register['username'],
            $register['password'],
            $register['email'],
            $ipAddress,
            $countryCode,
            $defaultRoleInfo
        );
    } catch(RuntimeException $ex) {
        $notices[] = 'Something went wrong while creating your account, please alert an administrator or a developer about this!';
        break;
    }

    $users->addRoles($userInfo, $defaultRoleInfo);
    $config->setString('users.newest', $userInfo->getId());

    url_redirect('auth-login-welcome', ['username' => $userInfo->getName()]);
    return;
}

Template::render('auth.register', [
    'register_notices' => $notices,
    'register_username' => !empty($register['username']) && is_string($register['username']) ? $register['username'] : '',
    'register_email' => !empty($register['email']) && is_string($register['email']) ? $register['email'] : '',
    'register_restricted' => $restricted,
]);