HashedPotatoes/pages/register.php at master · cstringer17/HashedPotatoes · GitHub

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<?php
// Include database config
require_once "config.php";


//Username and password variables
$username = $password = $confirm_password = "";
$username_err = $password_err = $confirm_password_err = "";

// Check if request method is POST
if ($_SERVER["REQUEST_METHOD"] == "POST") {

    printf(strlen(trim($_POST["username"])));

    // Validate username
    if (empty(trim($_POST["username"]))) {
        $username_err = "Please enter a username.";
    } elseif (strlen(trim($_POST["username"])) > 50) {
        $username_err = "Username must be less that 50 characters.";
    } else {
        // Prepare a select statement
        $sql = "SELECT id FROM users WHERE username = ?";

        if ($stmt = $mysqli->prepare($sql)) {
            // Bind variables to the prepared statement as parameters
            $stmt->bind_param("s", $param_username);

            // Set parameters
            $param_username = htmlentities(trim($_POST["username"]));

            // Attempt to execute the prepared statement
            if ($stmt->execute()) {
                // store result
                $stmt->store_result();

                if ($stmt->num_rows == 1) {
                    $username_err = "This username is already taken.";
                } else {
                    $username = trim($_POST["username"]);
                }
            } else {
                echo "Oops! Something went wrong. Please try again later.";
            }

            // Close statement
            $stmt->close();
        }
    }

    // Validate password
    if (empty(trim($_POST["password"]))) {
        $password_err = "Please enter a password.";
    } elseif (strlen(trim($_POST["password"])) < 6) {
        $password_err = "Password must have atleast 6 characters.";
    } elseif (strlen(trim($_POST["password"])) > 255) {
        $password_err = "The max password length is 255 characters!";
    } else {
        $password = trim($_POST["password"]);
    }

    // Validate confirm password
    if (empty(trim($_POST["confirm_password"]))) {
        $confirm_password_err = "Please confirm password.";
    } else {
        $confirm_password = trim($_POST["confirm_password"]);
        if (empty($password_err) && ($password != $confirm_password)) {
            $confirm_password_err = "Password did not match.";
        }
    }

    //Check password strength
    require_once("tools/passwordstrength.php");
    if (!strength($password)) {
        $confirm_password_err = "Password is not strong enough. <br>
        Password must be at least 8 characters in length. <br>
        Password must include at least one upper case letter.<br>
        Password must include at least one number.<br>
        Password must include at least one special character";
    }

    // Check input errors before inserting in database
    if (empty($username_err) && empty($password_err) && empty($confirm_password_err)) {

        // Prepare an insert statement
        $sql = "INSERT INTO users (username, password) VALUES (?, ?)";

        if ($stmt = $mysqli->prepare($sql)) {
            // Bind variables to the prepared statement as parameters
            $stmt->bind_param("ss", $param_username, $param_password);

            // Set parameters
            $param_username = $username;
            $param_password = password_hash($password, PASSWORD_DEFAULT); // Creates a password hash

            // Attempt to execute the prepared statement
            if ($stmt->execute()) {
                // Redirect to login page
                header("location: login.php");
            } else {
                echo "Something went wrong. Please try again later.";
            }
            // Close statement
            $stmt->close();
        }
    }

    // Close connection
    $mysqli->close();
}
?>

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Sign Up</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootswatch/4.5.2/lux/bootstrap.min.css" integrity="sha384-9+PGKSqjRdkeAU7Eu4nkJU8RFaH8ace8HGXnkiKMP9I9Te0GJ4/km3L1Z8tXigpG" crossorigin="anonymous">
    <link rel="stylesheet" href="https://unpkg.com/bootstrap-darkmode@0.7.0/dist/darktheme.css" />
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.2/css/all.css" integrity="sha384-oS3vJWv+0UjzBfQzYUhtDYW+Pj2yciDJxpsK1OYPAYjqT085Qq/1cq5FLXAZQ7Ay" crossorigin="anonymous">
    <style type="text/css">
        body {
            font: 14px sans-serif
        }

        .wrapper {
            width: 350px;
            padding: 20px;
            margin-left: 40%;
            margin-top: 5%;
        }

        meter {
            -webkit-appearance: none;
            -moz-appearance: none;
            appearance: none;

            margin: 0 auto 1em;
            width: 100%;
            height: 0.5em;
            background: none;
            background-color: rgba(0, 0, 0, 0.1);
            opacity: 0.7;
        }
    </style>
</head>

<body>
    <div class="wrapper">
        <h2>Sign Up</h2>
        <p>Please fill this form to create an account.</p>
        <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
            <div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
                <label>Username</label>
                <input type="text" name="username" required="true" minlength="5" maxlength="50" class="form-control" value="<?php echo $username; ?>">
                <span class="help-block"><?php echo $username_err; ?></span>
            </div>
            <div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
                <label>Password</label>
                <input data-toggle="password" id="password" type="password" name="password" required="true" maxlength="255" class="form-control" placeholder="Enter the password" value="<?php echo $password; ?>">
                <span class="help-block"><?php echo $password_err; ?></span>
                <meter max="5" id="password-strength-meter"></meter>
                <p id="password-strength-text"></p>
            </div>
            <div class="form-group <?php echo (!empty($confirm_password_err)) ? 'has-error' : ''; ?>">
                <label>Confirm Password</label>
                <input data-toggle="password" id="password" type="password" name="confirm_password" required="true" maxlength="255" class="form-control" placeholder="Enter the password again" value="<?php echo $confirm_password; ?>">
                <span class="help-block"><?php echo $confirm_password_err; ?></span>

            </div>
            <div class="form-group">
                <input type="submit" class="btn btn-primary" value="Submit">
                <input type="reset" class="btn btn-default" value="Reset">

            </div>
            <p>Already have an account? <a href="login.php">Login here</a>.</p>
            <br>
            <?php include("tools/darkmode.php")
            ?>
        </form>
    </div>
</body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/zxcvbn/4.2.0/zxcvbn.js"></script>
<script>
    var strength = {
        0: "Worst",
        1: "Bad",
        2: "Weak",
        3: "Good",
        4: "Strong"
    }

    var color = {
        0: "Red",
        1: "Orange",
        2: "Yellow",
        3: "Yellow",
        4: "Green"
    };
    var password = document.getElementById('password');
    var meter = document.getElementById('password-strength-meter');
    var text = document.getElementById('password-strength-text');

    password.addEventListener('input', function() {
        var val = password.value;
        var result = zxcvbn(val);

        // Update the password strength meter
        meter.value = result.score;
        meter.style.backgroundColor = color[result.score];

        // Update the text indicator
        if (val !== "") {
            text.innerHTML = "Strength: " + strength[result.score];
        } else {
            text.innerHTML = "";
        }
    });
</script>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://unpkg.com/bootstrap-show-password@1.2.1/dist/bootstrap-show-password.min.js"></script>

</html>