Gravatar Module: Add the gravatar module

refs #9916

modules/gravatar/application/controllers/IndexController.php

@@ -0,0 +1,49 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+use Icinga\Web\Controller;
+use Icinga\Web\FileCache;
+
+class Gravatar_IndexController extends Controller
+{
+    /**
+     * Static routes don't require authentication
+     *
+     * @var bool
+     */
+    protected $requiresAuthentication = false;
+
+    /**
+     * Disable layout rendering as this controller doesn't provide any html layouts
+     */
+    public function init()
+    {
+        $this->_helper->viewRenderer->setNoRender(true);
+        $this->_helper->layout()->disableLayout();
+    }
+
+    public function indexAction()
+    {
+        $cache = FileCache::instance();
+        $filename = md5(strtolower(trim($this->_request->getParam('email'))));
+        $cacheFile = 'gravatar-' . $filename;
+        header('Cache-Control: public');
+        header('Pragma: cache');
+        if ($etag = $cache->etagMatchesCachedFile($cacheFile)) {
+            header("HTTP/1.1 304 Not Modified");
+            return;
+        }
+
+        header('Content-Type: image/jpg');
+        if ($cache->has($cacheFile)) {
+            header('ETag: "' . $cache->etagForCachedFile($cacheFile) . '"');
+            $cache->send($cacheFile);
+            return;
+        }
+        $img = file_get_contents('http://www.gravatar.com/avatar/' . $filename . '?s=120&d=mm');
+        $cache->store($cacheFile, $img);
+        header('ETag: "' . $cache->etagForCachedFile($cacheFile) . '"');
+
+        return $img;
+    }
+}

modules/gravatar/library/Gravatar/Gravatar.php

@@ -0,0 +1,22 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Gravatar;
+
+use Icinga\Web\Hook\GravatarHook;
+
+/**
+ * Class Gravatar
+ */
+class Gravatar extends GravatarHook
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getAvatar($email)
+    {
+        $baseUrl = $this->getView()->baseUrl();
+
+        return $baseUrl . '/gravatar/?email=' . $email;
+    }
+}

modules/gravatar/module.info

@@ -0,0 +1,4 @@
+Module: gravatar
+Version: 2.0.0-rc1
+Description: Gravatar module
+  User images provided by Gravatar.

modules/gravatar/run.php

@@ -0,0 +1,3 @@
+<?php
+
+$this->registerHook('gravatar', '\\Icinga\\Module\\Gravatar\\Gravatar');