introduce altcha/captcha, fixes #4113

Closes #4113

Merge request studip/studip!2965

2 files changed, 15 insertions, 0 deletions

diff --git a/app/controllers/accessibility/forms.php b/app/controllers/accessibility/forms.php
index 476f2fe..e240a6c 100644
--- a/app/controllers/accessibility/forms.php
+++ b/app/controllers/accessibility/forms.php
@@ -146,6 +146,9 @@ class Accessibility_FormsController extends StudipController
         }
 
         $this->form->addPart($personal_data_part);
+
+        $this->form->addPart(new \Studip\Forms\Captcha());
+
         $this->form->setSaveButtonText(_('Barriere melden'));
         $this->form->setSaveButtonName('report');
         $this->form->setURL($this->report_barrierURL());
diff --git a/app/controllers/captcha.php b/app/controllers/captcha.php
new file mode 100644
index 0000000..37bac47
--- /dev/null
+++ b/app/controllers/captcha.php
@@ -0,0 +1,12 @@
+<?php
+final class CaptchaController extends StudipController
+{
+    public function challenge_action(): void
+    {
+        $this->response->add_header(
+            'Expires',
+            gmdate('D, d M Y H:i:s', time() + CaptchaChallenge::CHALLENGE_EXPIRATION) . ' GMT'
+        );
+        $this->render_json(CaptchaChallenge::createNewChallenge());
+    }
+}