Create an insecure bank application

webroot/lib/View/LoginPage.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types=1);
+
+namespace View;
+
+class LoginPage extends BankingPage
+{
+    public string $fieldUsername = '';
+    public string $fieldPassword = '';
+    public bool $formWasSent = false;
+
+    public bool $errorLoginDataInvalid = false;
+
+    public function __construct(...$args)
+    {
+        parent::__construct(...$args);
+        if (isset($_POST['username'], $_POST['password'])) {
+            $this->formWasSent = true;
+            $this->fieldUsername = (string) $_POST['username'];
+            $this->fieldPassword = (string) $_POST['password'];
+        }
+    }
+
+    public function sendTitle(): void
+    {
+        echo 'Einloggen';
+    }
+
+    public function sendMainContent(): void
+    {
+        $username = htmlspecialchars($this->fieldUsername);
+        $password = htmlspecialchars($this->fieldPassword);
+
+        echo '<h1>Einloggen</h1>';
+        if ($this->errorLoginDataInvalid) {
+            echo '<p class="error">[!] Der Login war nicht erfolgreich.</p>';
+        }
+        echo '<form class="login" action="/login.php" method="post">';
+        echo "<label for=\"username\">Nutzername:</label><input type=\"text\" name=\"username\" id=\"username\" maxlength=\"20\" value=\"{$username}\"><br>";
+        echo "<label for=\"password\">Passwort:</label><input type=\"password\" name=\"password\" id=\"password\" value=\"{$password}\"><br>";
+        echo '<input type="submit" value="Einloggen">';
+        echo '</form>';
+    }
+}