AuthMe PHP integration | Full

<?php

    // Пример авторизаций через AuthMe на сайте / Example for authorization via AuthMe on website.

    $mysql = array( // Настройка базы / DataBase configuration ===============

        "HOST" => "localhost",
        "USER" => "root",
        "PASS" => "",
        "BASE" => "authme",
        "TABL" => "authme"

    ); // ===========================================

    $con = mysqli_connect($mysql['HOST'], $mysql['USER'], $mysql['PASS'], $mysql['BASE']);

    if (mysqli_connect_errno()) {
        die("Failed to connect to MySQL: " . mysqli_connect_error());
    }

    function createSalt() {
        return substr(md5(uniqid(rand(), TRUE)), 0, 3);
    }

    function testAccountExists($name) {
        global $con, $mysql;

        $query = mysqli_query($con, 'SELECT `id` FROM `'.$mysql['TABL'].'` where `username` = "'.mysqli_real_escape_string($con, $name).'"');
        $rowcount=mysqli_num_rows($query);
        if ($rowcount == 0 || $rowcount > 1 || 1 > $rowcount) {
            return false;
        }else{
            return true;
        }
    }

    function checkAccountPassword($name, $password) {
        global $con, $mysql;

        if (testAccountExists($name) == false) { return false; }

        $query = mysqli_query($con, 'SELECT `password` FROM `'.$mysql['TABL'].'` where `username` = "'.mysqli_real_escape_string($con, $name).'"');

        while ($row = mysqli_fetch_row($query))
        {
            $sha_info = explode('$', $row[0]);
            if( $sha_info[1] === "SHA" ) {
                $salt = $sha_info[0];
                $sha256_password = hash('sha256', $password);
                $sha256_password .= $sha_info[2];
                if( strcasecmp(trim($sha_info[3]),hash('sha256', $sha256_password) ) == 0 ){
                    return true;
                } else {
                    return false;
                }
            }
        }
    }

    function createHash($password) {
        $salt = createSalt();

        return '$SHA$' . $salt . '$' . hash('sha256', hash('sha256', $password) . $salt);
    }

    function registerAccount($name, $password, $regtime, $regip) {
        global $con, $mysql;

        if (testAccountExists($name) == true) { return false; }

        $sql = 'INSERT INTO `'.$mysql['TABL'].'`(`username`, `realname`, `password`, `ip`, `lastlogin`, `regdate`, `regip`) VALUES ("'.mysqli_real_escape_string($con, $name).'", "'.mysqli_real_escape_string($con, strtolower($name)).'", "'.createHash($password).'", "'.$regip.'", "'.$regtime.'", "'.$regtime.'", "'.$regip.'")';

        if (mysqli_query($con, $sql)) {
            return true;
        } else {
            return false;
        }
    }


    // Код формы / Code of form

    if (!empty($_POST['itsAuth'])) {
        switch ($_POST['itsAuth']) {
            case '1': // Авторизация / Authorization

                if (!empty($_POST['login']) && !empty($_POST['password'])) {
                    if (checkAccountPassword($_POST['login'], $_POST['password']) == true) {
                        echo "<div class='alert'>".$_POST['login'].", вы успешно вошли в аккаунт!</div>";
                    } else {
                        echo "<div class='alert'>Неверный логин или пароль!</div>";
                    }
                }

                break;

            case '2': // Регистрация / Register
                if (!empty($_POST['login']) && !empty($_POST['password']) && !empty($_POST['password2'])) {
                    if ($_POST['password'] == $_POST['password2']) {

                        // Тут нет проверки на валидность ника, и пароля (preg_match) / There is no check on the validity of the nickname, and the password (preg_match)
                        if (registerAccount($_POST['login'], $_POST['password'], time(), $_SERVER['REMOTE_ADDR']) == true) {
                            echo "<div class='alert'>Успешно!</div>";
                        } else {
                            echo "<div class='alert'>Данный аккаунт уже существует!</div>";
                        }
                    } else {
                        echo "<div class='alert'>Пароли не совпадают!</div>";
                    }
                }

                break;
        }

    }


?>
<!DOCTYPE html>
<html>
<head>
    <title>AuthMe Auth via php script!</title>
    <meta charset="utf-8">
</head>
<body>

    <style type="text/css">
        body{
            background-color: grey;
        }
        .block_form {
            display: inline-block;
            min-width: 100px;
            max-width: 300px;
            width: 100%;
            margin-left: 10px;
            margin-right: 10px;
            margin-top: 20px;
            margin-bottom: 20px;
        }
        .form_wrap {
            display: block;
            width: 320px;
            margin-left: auto;
            margin-right: auto;
        }
        .center_text {
            text-align: center;
        }
        .wrapper {
            width: 100%;
            display: flex;
        }
        .block_header {
            height: 60px;
            background-color: brown;
            border-radius: 5px 5px 0px 0;
        }
        .block_header > h3 {
            line-height: 60px;
            color: white;
            font-weight: 700;
        }
        .block_content {
            background-color: #efbaba;
            padding-top: 10px;
            padding-bottom: 20px;
            padding-right: 10px;
            padding-left: 10px;
            border-radius: 0px 0px 5px 5px;
        }
        input[type=text], input[type=password] {
            height: 20px;
            padding: 5px;
            color: black;
            text-align: center;
            background-color: white;
            width: 100%;
            margin-bottom: 10px;
        }
        input[type=submit] {
            float: right;
            height: 40px;
        }
        .btn-secondary{
            float: right;
            background-color: brown;
        }
        .btn-secondary:hover{
            float: right;
            background-color: brown;
        }
        .alert {
            width: 300px;
            position: absolute;
            top: 5px;
            left: 5px;
            background-color: black;
            color: white;
            line-height: 40px;
            padding-left: 10px;
        }
        .title {
            padding-top: 30px;
            padding-bottom: 10px;
        }
        .title > h1 {
            text-align: center;
        }
    </style>

    <div class="wrapper">
        <div class="form_wrap">
            <div class="title">
                <h1>AuthMe скрипт</h1>
            </div>
            <div class="block_form">
                <form method="POST">
                    <div class="block_header">
                        <h3 class="center_text">Регистрация</h3> <!-- Registration -->
                    </div>

                    <div class="block_content">
                        <input type="text" name="login" placeholder="Ваш ник-нейм">
                        <input type="password" name="password" placeholder="Ваш пароль">
                        <input type="password" name="password2" placeholder="Повторите пароль">


                        <input type="hidden" name="itsAuth" value="2">

                        <br>

                        <input type="submit" value="Регистрация"></input> <!-- Registration -->
                    </div>

                </form>
            </div>

            <div class="block_form">
                <form method="POST">
                    <div class="block_header">
                        <h3 class="center_text">Авторизация</h3> <!-- Authorization -->
                    </div>

                    <div class="block_content">
                        <input type="text" name="login" placeholder="Ваш ник-нейм">
                        <input type="password" name="password" placeholder="Ваш пароль">

                        <input type="hidden" name="itsAuth" value="1">

                        <br>

                        <input type="submit" value="Авторизация"></input> <!-- Authorization -->
                    </div>

                </form>
            </div>

        </div>

    </div>

</body>
</html>