keycloak

2026-06-08 02:45:36 +02:00
parent 6d398323ae
commit 1ae7b98378
14 changed files with 1036 additions and 4 deletions
--- a/public/auth/callback/index.php
+++ b/public/auth/callback/index.php
@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+require_once dirname(__DIR__, 3) . '/src/App/bootstrap.php';
+
+use App\ConfigLoader;
+use App\KeycloakAuth;
+
+session_start();
+
+$projectRoot = dirname(__DIR__, 3);
+$auth = new KeycloakAuth(ConfigLoader::load($projectRoot, 'keycloak'));
+$state = (string) ($_GET['state'] ?? '');
+$expectedState = (string) ($_SESSION['keycloak_oauth_state'] ?? '');
+$code = (string) ($_GET['code'] ?? '');
+
+$title = 'Keycloak Callback';
+$message = 'Anmeldung wird verarbeitet.';
+$redirectTarget = '/';
+
+if ($state === '' || $expectedState === '' || !hash_equals($expectedState, $state)) {
+    http_response_code(400);
+    $message = 'State-Pruefung fehlgeschlagen. Bitte den Login erneut starten.';
+} elseif ($code === '') {
+    http_response_code(400);
+    $message = 'Kein Authorization Code von Keycloak erhalten.';
+} else {
+    unset($_SESSION['keycloak_oauth_state']);
+
+    $tokenExchange = $auth->exchangeAuthorizationCode($code);
+
+    if (($tokenExchange['success'] ?? false) !== true) {
+        http_response_code(502);
+        $message = (string) ($tokenExchange['error'] ?? 'Token-Austausch mit Keycloak fehlgeschlagen.');
+    } else {
+        /** @var array<string, mixed> $tokenPayload */
+        $tokenPayload = $tokenExchange['data'];
+        $accessToken = (string) ($tokenPayload['access_token'] ?? '');
+
+        if ($accessToken === '') {
+            http_response_code(502);
+            $message = 'Keycloak hat kein Access Token geliefert.';
+        } else {
+            $userInfo = $auth->fetchUserInfo($accessToken);
+
+            if (($userInfo['success'] ?? false) !== true) {
+                http_response_code(502);
+                $message = (string) ($userInfo['error'] ?? 'Userinfo-Abruf fehlgeschlagen.');
+            } else {
+                /** @var array<string, mixed> $userPayload */
+                $userPayload = $userInfo['data'];
+                $auth->establishSession($tokenPayload, $userPayload);
+                header('Location: ' . $redirectTarget, true, 302);
+                exit;
+            }
+        }
+    }
+}
+?><!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title><?= htmlspecialchars($title, ENT_QUOTES) ?></title>
+    <link rel="stylesheet" href="/assets/auth/login.css">
+</head>
+<body>
+    <main class="login-shell">
+        <section class="login-panel">
+            <div class="login-panel-top">
+                <p class="login-kicker">Kusche.Berlin</p>
+                <h1><?= htmlspecialchars($title, ENT_QUOTES) ?></h1>
+                <p class="login-copy"><?= htmlspecialchars($message, ENT_QUOTES) ?></p>
+            </div>
+            <div class="login-actions">
+                <a class="login-button login-button-secondary" href="/auth/login">Zurueck zum Login</a>
+            </div>
+        </section>
+    </main>
+</body>
+</html>