commit fa7daba41edb81958aae0e3cac9b0b5d2ecacef6
Author: Dorian Zedler <dorian@itsblue.de>
Date:   Sun Jul 11 09:12:51 2021 +0200

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..fe107c2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/data.json
\ No newline at end of file
diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..f4a3cef
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1,30 @@
+<IfModule mod_rewrite.c>
+
+RewriteEngine On
+
+## Begin - Index
+# If the requested path and file is not /index.php and the request
+# has not already been internally rewritten to the index.php script
+RewriteCond %{REQUEST_URI} !^/index\.php
+# and the requested path and file doesn't directly match a physical file
+RewriteCond %{REQUEST_FILENAME} !-f
+# and the requested path and file doesn't directly match a physical folder
+RewriteCond %{REQUEST_FILENAME} !-d
+# internally rewrite the request to the index.php script
+RewriteRule .* index.php [L]
+## End - Index
+
+## Begin - Security
+# Block all direct access for these folders
+RewriteRule ^(\.git|cache|bin|logs|backup|webserver-configs|tests)/(.*) error [F]
+# Block all direct access to files and folders beginning with a dot
+RewriteRule (^|/)\.(?!well-known) - [F]
+# Block access to specific files in the root folder
+RewriteRule ^(LICENSE\.txt|composer\.lock|composer\.json|\.htaccess|README\.md|data\.json)$ error [F]
+## End - Security
+
+</IfModule>
+
+# Begin - Prevent Browsing and Set Default Resources
+Options -Indexes
+DirectoryIndex index.php
\ No newline at end of file
diff --git a/IconSmallSquareOutline.png b/IconSmallSquareOutline.png
new file mode 100644
index 0000000..74c348d
Binary files /dev/null and b/IconSmallSquareOutline.png differ
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..2187f27
--- /dev/null
+++ b/index.php
@@ -0,0 +1,250 @@
+<?php
+
+define('L_EXEC', true);
+require_once './theme.php';
+require_once './strings.php';
+require_once './storageHelper.php';
+
+class SyncedTimer
+{
+
+    private $_serverConfig = array(
+        "hideIndexPhp" => true
+    );
+    private $_themeConfig = array();
+    private $_translations;
+    private $_basepath;
+    private $_resourcePath;
+    private $_path;
+    private $_dataFile = "./data.json";
+    private $_storageHelper;
+
+    public function __construct($translations)
+    {
+        session_start();
+        $this->_translations = $translations;
+
+        $this->_storageHelper = new StorageHelper($this->_dataFile);
+
+        $this->_calculateBasepath();
+        $this->_themeConfig["basePath"] = $this->_basepath;
+        $this->_themeConfig["mainIcon"] = $this->_resourcePath . "IconSmallSquareOutline.png";
+        $this->_theme = new LandingpageTheme($this->_themeConfig, $this->_storageHelper, $this->_translations);
+
+        $this->_processRequest();
+    }
+
+    private function _processRequest()
+    {
+        $this->_updatePermissions();
+        $this->_checkPagePermissions();
+
+        if ($this->_stringEndsWith($this->_path, "submit")) {
+            if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+                $this->_redirect('/');
+            }
+
+            switch ($this->_path) {
+                case '/login/submit':
+                    $this->_handleLoginSubmit();
+                    break;
+
+                case '/logout/submit':
+                    unset($_SESSION["auth"]);
+                    $this->_redirect('/');
+                    break;
+
+                case '/manage/submit':
+                    $this->_handleManageSubmit();
+                    $this->_redirect('/manage');
+                    break;
+
+                default:
+                    $this->_redirect("/");
+                    break;
+            }
+        } else {
+            if ($this->_path === '/logout') {
+                $this->_redirect('/');
+            } else {
+                $paramList = explode('/', ltrim($this->_path, '/'), 2);
+                $endpoint = $paramList[0];
+                $username = $paramList[1];
+
+                if ($endpoint === "api" && isset($username))
+                    $this->_printJson($username);
+                else
+                    $this->_theme->printPage($endpoint, $username);
+            }
+        }
+
+        unset($_SESSION['lastResult']);
+    }
+
+    private function _calculateBasepath()
+    {
+        if ($this->_serverConfig['hideIndexPhp']) {
+            $this->_basepath = str_replace(basename($_SERVER["SCRIPT_NAME"]), '', $_SERVER['SCRIPT_NAME']);
+            $this->_resourcePath = $this->_basepath;
+        } else {
+            $this->_basepath = $_SERVER["SCRIPT_NAME"];
+            $this->_resourcePath = str_replace(basename($_SERVER["SCRIPT_NAME"]), '', $_SERVER['SCRIPT_NAME']);
+        }
+
+        $this->_basepath = rtrim($this->_basepath, "/ ");
+
+        if (($this->_basepath !== '' && strpos($_SERVER['REQUEST_URI'], $this->_basepath) === false) || $_SERVER['REQUEST_URI'] === $this->_basepath)
+            $this->_path = "/";
+        else
+            $this->_path = str_replace($this->_basepath, "", $_SERVER['REQUEST_URI']);
+    }
+
+    private function _redirect($path)
+    {
+        header('Location: ' . $this->_basepath . $path);
+        die();
+    }
+
+    //
+    // - Page printer (theme)
+    //
+
+    private function _printJson($username)
+    {
+        header('Content-Type: application/json');
+        header('Access-Control-Allow-Origin: *');
+        $allUserdata = $this->_storageHelper->loadUserdata();
+        if (array_key_exists($username, $allUserdata)) {
+            $userdata = $allUserdata[$username];
+            die(json_encode(array(
+                "status" => 200,
+                "data" => array(
+                    "time" => $userdata["time"],
+                    "startedAt" => $userdata["startedAt"],
+                    "header" => $userdata["header"]
+                )
+            )));
+        } else {
+            http_response_code(404);
+            die(json_encode(array(
+                "status" => 404,
+                "data" => null
+            )));
+        }
+    }
+
+    // -----------------------
+    // - Permission handlers -
+    // -----------------------
+
+    private function _updatePermissions()
+    {
+        $_SESSION['permissions'][''] = false;
+        $_SESSION['permissions']['t'] = true;
+        $_SESSION['permissions']['api'] = true;
+        $_SESSION['permissions']['login'] = !$this->_isUserAuthenticated();
+        $_SESSION['permissions']['logout'] = $this->_isUserAuthenticated();
+        $_SESSION['permissions']['manage'] = $this->_isUserAuthenticated();
+    }
+
+    private function _checkPagePermissions()
+    {
+        $pageRedirectOnInsufficientPermissionsPriority = [
+            0 => "manage",
+            1 => "login"
+        ];
+
+        $page = explode("/", $this->_path)[1];
+
+        if (!isset($_SESSION['permissions'][$page])) {
+            $this->_redirect('/');
+        } else if ($_SESSION['permissions'][$page] === false) {
+            if (!$this->_isUserAuthenticated()) {
+                $_SESSION['lastResult'] = 'loginRequired';
+            }
+
+            if ($this->_path === '/' || $this->_path === '') {
+                // if the root is opened, do not throw an error!
+                unset($_SESSION['lastResult']);
+            }
+
+            // redirect to the first page the user has access to
+            foreach ($pageRedirectOnInsufficientPermissionsPriority as $page) {
+                if ($_SESSION['permissions'][$page])
+                    $this->_redirect("/" . $page);
+            }
+
+            die($this->_translations['results']['noPermissionToAnyPage']);
+        }
+    }
+
+    // -------------------
+    // - Submit handlers -
+    // -------------------
+
+    private function _handleLoginSubmit()
+    {
+        $username = $_POST["username"];
+        $password = $_POST["password"];
+        $userData = $this->_storageHelper->loadUserdata();
+        if (array_key_exists($username, $userData) && password_verify($password, $userData[$username]['password'])) {
+            $_SESSION["auth"]["loggedIn"] = true;
+            $_SESSION["auth"]["username"] = $username;
+            $_SESSION['lastResult'] = "loginSuccess";
+            $this->_redirect("/manage");
+        } else {
+            $_SESSION['lastResult'] = "loginFailed";
+            $this->_redirect("/login");
+        }
+    }
+
+    private function _handleManageSubmit()
+    {
+        $time = $_POST["time"];
+        $header = $_POST["header"];
+        $startedAt = time();
+        $newData = array(
+            "time" => intval($time),
+            "header" => $header,
+            "startedAt" => $startedAt
+        );
+        $this->_storageHelper->writeUserdata($_SESSION["auth"]["username"], $newData);
+        $_SESSION['lastResult'] = "timerSetSuccessfully";
+    }
+
+    // ----------------------------
+    // - General helper functions -
+    // ----------------------------
+
+    private function _isUserAuthenticated()
+    {
+        $authenticated =
+            isset($_SESSION['auth'])
+            && isset($_SESSION['auth']['loggedIn'])
+            && $_SESSION['auth']['loggedIn'] === true
+            && isset($_SESSION['auth']['username']);
+
+        if (!$authenticated && isset($_SESSION['auth'])) {
+            unset($_SESSION['auth']);
+        }
+
+        return $authenticated;
+    }
+
+    private function _stringStartsWith($haystack, $needle)
+    {
+        $length = strlen($needle);
+        return substr($haystack, 0, $length) === $needle;
+    }
+
+    private function _stringEndsWith($haystack, $needle)
+    {
+        $length = strlen($needle);
+        if (!$length) {
+            return true;
+        }
+        return substr($haystack, -$length) === $needle;
+    }
+}
+
+new SyncedTimer($translations);
diff --git a/storageHelper.php b/storageHelper.php
new file mode 100644
index 0000000..4e07038
--- /dev/null
+++ b/storageHelper.php
@@ -0,0 +1,31 @@
+<?php
+
+class StorageHelper 
+{
+
+    private $_dataFile;
+
+    public function __construct($dataFile)
+    {
+        $this->_dataFile = $dataFile;
+    }
+
+    function loadUserdata()
+    {
+        $data = json_decode(file_get_contents($this->_dataFile), true);
+        return $data;
+    }
+
+    function writeUserdata($username, $newUserdata)
+    {
+        $allUserdata = $this->loadUserdata();
+        $currentUserdata = $allUserdata[$username];
+        $newUserdata = array_replace_recursive($currentUserdata, $newUserdata);
+        $dataFile = fopen($this->_dataFile, "w") or die("Unable to open file!");
+        $allUserdata[$username] = $newUserdata;
+
+        fwrite($dataFile, json_encode($allUserdata));
+        fclose($dataFile) or die("Unable to write to data file!");
+    }
+
+}
\ No newline at end of file
diff --git a/strings.php b/strings.php
new file mode 100644
index 0000000..3095344
--- /dev/null
+++ b/strings.php
@@ -0,0 +1,51 @@
+<?php
+
+defined('L_EXEC') or die();
+
+// Available placeholders:
+// {$customizationConfig['organizationName']}
+// {$customizationConfig['fullOrganizationName']}
+// {$customizationConfig['supportEmailAddress']}
+
+$translations['home']['hello'] = "Hallo";
+$translations['home']['welcomeMessage'] = "Wilkommen bei deinem {$customizationConfig['organizationName']}-Account - Ein Login für alles";
+$translations['home']['menu']['linksLabel'] = "{$customizationConfig['organizationName']} Dienste";
+$translations['home']['menu']['changePasswordLabel'] = "Passwort ändern";
+$translations['home']['menu']['changeEmailLabel'] = "E-Mail-Adresse ändern";
+$translations['home']['menu']['generateJitsiLinkLabel'] = "Jitsi Link generieren";
+$translations['home']['menu']['logoutLabel'] = "Abmelden";
+$translations['home']['menu']['loginLabel'] = "Anmelden";
+
+// These rules are currently hard coded!
+$translations['passwordRules'][0] = "Das Passwort muss mindestens 7 Zeichen lang sein.";
+$translations['passwordRules'][1] = "Das Passwort muss mindestens eine Zahl oder ein Sonderzeichen enthalten.";
+$translations['passwordRules'][2] = "Das Passwort muss mindestens einen Klein- und einen Großbuchstaben enthalten.";
+
+$translations['results']['internalError'] = "Interner Fehler. Falls das Problem bestehen bleibt, kontaktieren sie bitte <a href=\"mailto:{$customizationConfig['supportEmailAddress']}?body=Fehlercode: %ERR%; URI: {$_SERVER['REQUEST_URI']}\">{$customizationConfig['supportEmailAddress']}</a> (%ERR%)";
+$translations['results']['permissionDenied'] = "Zugriff verweigert";
+$translations['results']['noPermissionToAnyPage'] = str_replace("%ERR%", "0005", $translations['results']['internalError']);
+$translations['results']['loginSuccess'] = "Erfolgreich angemeldet";
+$translations['results']['loginFailed'] = "Ungültige Zugangsdaten";
+$translations['results']['loginRequired'] = "Bitte zuerst anmelden!";
+$translations['results']['oldPasswordIsWrong'] = "Das aktulle Passwort ist falsch";
+$translations['results']['newPasswordMustNotBeEqualToOldPassword'] = "Das neue Passwort darf nicht mit dem Alten übereinstimmen";
+$translations['results']['newPasswordAndRepeatDidNotMatch'] = "Die Passwörter stimmen nicht überein";
+$translations['results']['passwordIsTooShort'] = $translations['passwordRules'][0];
+$translations['results']['newPasswordMustNotBeOldPassword'] = "Das neue Passwort darf nicht mit dem Alten übereinstimmen.";
+$translations['results']['passwordChangedSuccessfully'] = "Dein Passwort wurde erfolgreich geändert.";
+$translations['results']['timerSetSuccessfully'] = "The timer was started successfully";
+
+$translations['globals']['title'] = "{$customizationConfig['organizationName']} Account";
+$translations['globals']['usernameLabel'] = "Benutzername";
+$translations['globals']['passwordLabel'] = "Passwort";
+$translations['globals']['emailAddress'] = "E-Mail-Adresse";
+
+$translations['login']['title'] = "Bitte anmelden";
+$translations['login']['submitLabel'] = "Anmelden";
+$translations['login']['footnote'] = "Login für Mitglieder des {$customizationConfig['fullOrganizationName']}";
+
+$translations['changePassword']['passwordRulesHeader'] = "Regeln für Passwörter:";
+$translations['changePassword']['currentPasswordLabel'] = "Aktuelles Passwort";
+$translations['changePassword']['newPasswordLabel'] = "Neues Passwort";
+$translations['changePassword']['repeatNewPasswordLabel'] = "Neues Password Wiederholen";
+$translations['changePassword']['submitLabel'] = "Passwort ändern";
\ No newline at end of file
diff --git a/theme.php b/theme.php
new file mode 100644
index 0000000..f2d77b2
--- /dev/null
+++ b/theme.php
@@ -0,0 +1,473 @@
+<?php
+
+defined('L_EXEC') or die();
+
+class LandingpageTheme
+{
+
+    private $_storageHelper;
+    private $_globalConfig;
+    private $_translations;
+    private $_resultLevels;
+
+    public function __construct($config, $storageHelper, $translations)
+    {
+        $this->_globalConfig = $config;
+        $this->_storageHelper = $storageHelper;
+        $this->_translations = $translations;
+
+        $this->_resultLevels['loginSuccess'] = "success";
+        $this->_resultLevels['loginFailed'] = "danger";
+        $this->_resultLevels['ldapConnectFailed'] = "danger";
+        $this->_resultLevels['ldapSearchFailed'] = "danger";
+        $this->_resultLevels['ldapTlsInitializationFailed'] = "danger";
+        $this->_resultLevels['bindingToLdapAdminFailed'] = "danger";
+        $this->_resultLevels['loginRequired'] = "warning";
+        $this->_resultLevels['oldPasswordIsWrong'] = "danger";
+        $this->_resultLevels['newPasswordMustNotBeEqualToOldPassword'] = "danger";
+        $this->_resultLevels['newPasswordAndRepeatDidNotMatch'] = "danger";
+        $this->_resultLevels['passwordIsTooShort'] = "danger";
+        $this->_resultLevels['passwordDoesNotContainANumberOrSpecialCharacter'] = "danger";
+        $this->_resultLevels['passwordDoesNotContainALetter'] = "danger";
+        $this->_resultLevels['passwordDoesNotContainAnUppercaseLetter'] = "danger";
+        $this->_resultLevels['passwordDoesNotContainALowercaseLetter'] = "danger";
+        $this->_resultLevels['passwordChangeLdapError'] = "danger";
+        $this->_resultLevels['newPasswordMustNotBeOldPassword'] = "danger";
+        $this->_resultLevels['passwordChangedSuccessfully'] = 'success';
+        $this->_resultLevels['emailChangedSuccessfully'] = 'success';
+        $this->_resultLevels['emailChangeLdapError'] = 'danger';
+        $this->_resultLevels['invalidEmailError'] = 'danger';
+        $this->_resultLevels['permissionDenied'] = 'danger';
+        $this->_resultLevels['generateJitsiLinkRoomMustNotBeEmpty'] = 'danger';
+        $this->_resultLevels['generateJitsiLinkSuccessfull'] = 'success';
+        $this->_resultLevels['timerSetSuccessfully'] = 'success';
+    }
+
+    public function printPage($page, $parameters)
+    {
+        switch ($page) {
+            case 'login':
+                $this->_printLogin();
+                break;
+            case "manage":
+                $this->_printManagePage();
+                break;
+            case "t":
+                $this->_printTimerPage($parameters);
+        }
+    }
+
+    private function _printLogin()
+    {
+        $this->_printHeader(true);
+?>
+
+        <style>
+            html,
+            body {
+                height: 100%;
+            }
+
+            body {
+                display: flex;
+                align-items: center;
+                padding-top: 40px;
+                padding-bottom: 40px;
+                background-color: #f5f5f5;
+            }
+
+            .form-signin {
+                width: 100%;
+                max-width: 330px;
+                padding: 15px;
+                margin: auto;
+            }
+
+            .form-signin .checkbox {
+                font-weight: 400;
+            }
+
+            .form-signin .form-control {
+                position: relative;
+                box-sizing: border-box;
+                height: auto;
+                padding: 10px;
+                font-size: 16px;
+            }
+
+            .form-signin .form-control:focus {
+                z-index: 2;
+            }
+
+            .form-signin input[type="email"] {
+                margin-bottom: -1px;
+                border-bottom-right-radius: 0;
+                border-bottom-left-radius: 0;
+            }
+
+            .form-signin input[type="password"] {
+                margin-bottom: 10px;
+                border-top-left-radius: 0;
+                border-top-right-radius: 0;
+            }
+
+            .bd-placeholder-img {
+                font-size: 1.125rem;
+                text-anchor: middle;
+                -webkit-user-select: none;
+                -moz-user-select: none;
+                user-select: none;
+            }
+        </style>
+        </head>
+
+        <body class="text-center">
+            <main class="form-signin">
+                <form action="login/submit" method="post">
+                    <img class="mb-4" src="<?= $this->_globalConfig['mainIcon'] ?>" alt="" height="150">
+                    <h1 class="h3 mb-3 fw-normal"><?= $this->_trId("login.title"); ?></h1>
+                    <?php $this->_printResultAlert(); ?>
+                    <label for="inputEmail" class="visually-hidden"><?= $this->_trId("globals.usernameLabel"); ?></label>
+                    <input type="text" id="inputUsername" class="form-control" placeholder="<?= $this->_trId("globals.usernameLabel"); ?>" name="username" required autofocus>
+                    <label for="inputPassword" class="visually-hidden"><?= $this->_trId("globals.passwordLabel"); ?></label>
+                    <input type="password" id="inputPassword" class="form-control" placeholder="<?= $this->_trId("globals.passwordLabel"); ?>" name="password" required>
+                    <button class="w-100 btn btn-lg btn-primary" type="submit"><?= $this->_trId("login.submitLabel"); ?></button>
+                    <p class="mt-5 mb-3 text-muted"><?= $this->_trId("login.footnote"); ?></p>
+                </form>
+            </main>
+        </body>
+    <?php
+        $this->_printFooter();
+    }
+
+    private function _printManagePage()
+    {
+        $userData = $this->_storageHelper->loadUserdata()[$_SESSION["auth"]["username"]];
+        $this->_printHeader();
+    ?>
+        <style>
+
+        </style>
+
+        <body>
+            <main>
+                <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+                    <div class="container-fluid">
+                        <a class="navbar-brand" href="#">Itsblue synced timer</a>
+                        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo02" aria-controls="navbarTogglerDemo02" aria-expanded="false" aria-label="Toggle navigation">
+                            <span class="navbar-toggler-icon"></span>
+                        </button>
+                        <div class="collapse navbar-collapse" id="navbarTogglerDemo02">
+                            <ul class="navbar-nav nav-pills me-auto mb-2 mb-lg-0">
+                                <li class="nav-item">
+                                    <a class="nav-link active" aria-current="page" href="#">Home</a>
+                                </li>
+                                <li class="nav-item">
+                                    <a class="nav-link" aria-current="page" target="blank" href="<?= $this->_globalConfig["basePath"] ?>/t/<?= $_SESSION["auth"]["username"] ?>">Open timer</a>
+                                </li>
+                            </ul>
+                            <form action="logout/submit" method="post" class="d-felx">
+                                <input type="submit" value="logout" class="btn btn-secondary">
+                            </form>
+                        </div>
+                    </div>
+                </nav>
+
+                <div class="container" style="margin-top: 20px;">
+                    <h1>Curent timer</h1>
+                    <h4 id="header">Loading ...</h4>
+                    <h4 id="timer">00:00:00</h4>
+                    <h1>Manage timer</h1>
+                    <?php $this->_printResultAlert(); ?>
+                    <form method="post" action="manage/submit">
+                        <div class="form-group">
+
+                        </div>
+                        <input name="cat" type="hidden" value="5-6">
+                        <div class="mb-3">
+                            <label for="header">Header</label>
+                            <textarea class="form-control" name="header" rows="3" required><?= $userData["header"] ?></textarea>
+                        </div>
+                        <div class="mb-3">
+                            <label for="time">Time</label>
+                            <input type="number" name="time" class="form-control" value="<?= $userData["time"] ?>" required>
+                        </div>
+                        <button type="submit" class="btn btn-primary">Start timer</button>
+                    </form>
+                </div>
+            </main>
+        </body>
+    <?php
+        $this->_printTimerJs($_SESSION["auth"]["username"]);
+        $this->_printFooter();
+    }
+
+    private function _printTimerPage($username)
+    {
+        $userData = $this->_storageHelper->loadUserdata();
+        if (!array_key_exists($username, $userData)) {
+            $this->_printNotFoundPage();
+        }
+
+    ?>
+        <html lang="en" class="h-100">
+
+        <style>
+            .bd-placeholder-img {
+                font-size: 1.125rem;
+                text-anchor: middle;
+                -webkit-user-select: none;
+                -moz-user-select: none;
+                user-select: none;
+            }
+
+            @media (min-width: 768px) {
+                .bd-placeholder-img-lg {
+                    font-size: 3.5rem;
+                }
+            }
+
+            body {
+                text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
+                box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
+            }
+
+            .cover-container {
+                max-width: 42em;
+            }
+        </style>
+
+        <!-- Bootstrap -->
+        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW" crossorigin="anonymous"></script>
+
+        </head>
+
+        <body class="d-flex h-100 text-center text-white bg-dark">
+
+            <div class="d-flex w-100 h-100 p-3 mx-auto flex-column">
+                <main class="px-3 h-100 mt-auto w-100">
+                    <h4 id="header">Loading ...</h4>
+                    <div style="justify-content:center; align-items:center; display:flex;">
+                        <h4 id="timer">00:00:00</h4>
+                    </div>
+                </main>
+
+                <footer class="mt-auto text-white-50">
+                    <p>Synced timer by Itsblue Development. <a href="https://www.itsblue.de" class="text-white">www.itsblue.de</a></p>
+                </footer>
+            </div>
+        </body>
+
+        <footer>
+            <?= $this->_printTimerJs($username); ?>
+            <script>
+                var textElem = document.getElementById("timer");
+                var headerTextElem = document.getElementById("header");
+                var targetWidth = 0.9; // Proportion of full screen width
+                var curFontSize = 20; // Do not change
+                function updateTextSize() {
+                    for (var i = 0; 3 > i; i++) { // Iterate for better better convergence
+                        curFontSize *= targetWidth / (textElem.offsetWidth / textElem.parentNode.offsetWidth);
+                        textElem.style.fontSize = curFontSize + "pt";
+                        headerTextElem.fontSize = curFontSize / 2 + "pt"
+                    }
+                }
+                updateTextSize();
+            </script>
+        </footer>
+
+        </html>
+    <?php
+    }
+
+    private function _printNotFoundPage()
+    {
+    ?>
+        <h1>Not found!</h1>
+    <?php
+    }
+
+    // --------------
+    // - JavaScript -
+    // --------------
+
+    private function _printTimerJs($username)
+    {
+    ?>
+        <script>
+            var currentData = {};
+
+            const zeroPad = (num, places) => String(num).padStart(places, '0')
+            var processData = function() {
+                if (this.readyState === 4 && this.status === 200) {
+                    currentData = JSON.parse(this.responseText);
+                    if(currentData["status"] === 200) {
+                        currentData = currentData["data"]
+                    }
+                    else {
+                        document.getElementById("timer").innerHTML = "error: " + this.status
+                    }
+                } else if (this.readyState === 4 && this.status !== 0) {
+                    document.getElementById("timer").innerHTML = "error: " + this.status
+                }
+            }
+
+            function loadData() {
+                xmlhttp = new XMLHttpRequest();
+                xmlhttp.onreadystatechange = processData;
+                xmlhttp.open("GET", "<?= $this->_globalConfig["basePath"] ?>/api/<?= $username ?>", true);
+                xmlhttp.send();
+            }
+
+            function setTimerText() {
+                time = currentData["time"]
+                header = currentData["header"]
+                startedAt = currentData["startedAt"]
+
+                passedSeconds = (Date.now() / 1000) - startedAt;
+                remaningSeconds = parseInt(time * 60 - passedSeconds);
+
+                if (remaningSeconds < 0) {
+                    remaningSeconds = 0
+                }
+
+                var remaningHours = zeroPad(parseInt(remaningSeconds / 60 / 60) % (60 * 60), 2)
+                var remaningMinutes = zeroPad(parseInt(remaningSeconds / 60) % 60, 2)
+                var remaningSeconds = zeroPad(remaningSeconds % 60, 2)
+                document.getElementById("timer").innerHTML = remaningHours + ":" + remaningMinutes + ":" + remaningSeconds
+                document.getElementById("header").innerHTML = header
+            }
+
+            loadData();
+
+            var dataLoader = setInterval(function() {
+                loadData();
+            }, 5000)
+
+            var timerRefresher = setInterval(function() {
+                setTimerText()
+            }, 1000)
+        </script>
+    <?php
+    }
+
+    // -----------
+    // - Helpers -
+    // -----------
+
+    private function _printHeader($printOnlySkeleton = false)
+    {
+    ?>
+        <!DOCTYPE html>
+        <html>
+
+        <head>
+            <meta name="viewport" content="width=device-width, initial-scale=1">
+
+            <!-- Bootstrap -->
+            <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
+            <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW" crossorigin="anonymous"></script>
+
+            <style>
+                :root {
+                    --primary_500: 255, 0, 0;
+                }
+
+                .mr-4 {
+                    margin-right: 1.5rem !important;
+                }
+
+                .ml-4 {
+                    margin-left: 1.5rem !important;
+                }
+
+                .card {
+                    align-items: center;
+                    text-align: center;
+                }
+
+                .card-footer {
+                    width: 100%;
+                }
+
+                a:focus {
+                    outline: none;
+                }
+            </style>
+
+            <title><?= $this->_trId("globals.title"); ?></title>
+            <?php
+            if (!$printOnlySkeleton) :
+
+            ?>
+        </head>
+    <?php
+            endif;
+        }
+
+        private function _printResultAlert()
+        {
+            if (!isset($_SESSION['lastResult']) || $_SESSION['lastResult'] === 'loginSuccess')
+                return;
+
+            $this->_printAlert($this->_resultToMessage($_SESSION['lastResult']), $this->_resultLevels[$_SESSION['lastResult']]);
+        }
+
+        private function _printAlert($content, $level = 'waring', $dismissible = true)
+        {
+    ?>
+    <div class="alert alert-<?= $level ?> <?php if ($dismissible) echo "alert-dismissible"; ?> fade show" role="alert">
+        <strong><?= $content ?></strong>
+        <?php if ($dismissible) : ?>
+            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        <?php endif; ?>
+    </div>
+<?php
+        }
+
+        private function _printFooter()
+        {
+?>
+    <script>
+        var forms = document.getElementsByTagName('form')
+
+        for (const form of forms) {
+            var formButtons = form.getElementsByTagName("button");
+            for (const button of formButtons) {
+                if (button.type === "submit") {
+                    form.addEventListener("submit", () => {
+                        console.log(button)
+                        button.innerHTML += ' <div class="spinner-border spinner-border-sm" role="status" aria-hidden="true"></div>'
+                        button.disabled = true
+                    })
+                }
+            }
+
+            var formInputs = form.getElementsByTagName("input")
+            for (const input of formInputs) {
+                form.addEventListener("submit", () => {
+                    input.readonly = true
+                })
+            }
+        }
+    </script>
+
+        </html>
+<?php
+        }
+
+        private function _resultToMessage($result)
+        {
+            return $this->_translations['results'][$result];
+        }
+
+        private function _trId($id)
+        {
+            $result = $this->_translations;
+            foreach (explode(".", $id) as $sub) {
+                $result = $result[$sub];
+            }
+            return $result;
+        }
+    }