Add support for theme configuration

Author: ioigoume

config/module_themevanilla.php.dist

@@ -0,0 +1,10 @@
+<?php
+/**
+ * Configuration of SimpleSAMLphp themevanila.
+ */
+$config = [
+    'cookiePolicy' => [
+    ],
+    'enable_cookies_banner' => False,
+    'ribbon_text' => 'Demo',
+];

src/Controller/VanillaThemeController.php

@@ -0,0 +1,55 @@
+<?php
+declare(strict_types=1);
+
+namespace SimpleSAML\Module\mymodule;
+
+use SimpleSAML\Configuration;
+use SimpleSAML\Session;
+use Twig\Environment;
+use SimpleSAML\XHTML\TemplateControllerInterface;
+
+class VanillaThemeController implements TemplateControllerInterface
+{
+  /** @var \SimpleSAML\Configuration */
+  protected Configuration $themeconfig;
+
+  /**
+   * Controller constructor.
+   *
+   * It initializes the global configuration and auth source configuration for the controllers implemented here.
+   *
+   * @param \SimpleSAML\Configuration              $config The configuration to use by the controllers.
+   * @param \SimpleSAML\Session                    $session The session to use by the controllers.
+   *
+   * @throws \Exception
+   */
+  public function __construct(
+    protected Configuration $config,
+    protected Session $session
+  ) {
+    $this->themeconfig = Configuration::getConfig('module_themevanilla.php');
+  }
+
+  /**
+   * Modify the twig environment after its initialization (e.g. add filters or extensions).
+   *
+   * @param \Twig\Environment $twig The current twig environment.
+   * @return void
+   */
+  public function setUpTwig(Environment &$twig): void
+  {
+  }
+
+  /**
+   * Add, delete or modify the data passed to the template.
+   *
+   * This method will be called right before displaying the template.
+   *
+   * @param array $data The current data used by the template.
+   * @return void
+   */
+  public function display(array &$data): void
+  {
+    $data['config'] = $this->themeconfig;
+  }
+}

themes/ssp/default/_header.twig

@@ -1,8 +1,8 @@
 {% block header %}
   <header id="header">
-    {% if ribbonnText is defined %}
+    {% if config.ribbon_text is defined %}
       <div class="corner-ribbon red">
-        {{ 'ribbonText'|trans }}
+        {{ 'config.ribbon_text'|trans }}
       </div>
     {% endif %}
     <div class="text-center ssp-logo">