Implemented WebFinger and replaced our XRD with PEAR XML_XRD

[quix0rs-gnu-social.git] / plugins / WebFinger / WebFingerPlugin.php

diff --git a/plugins/WebFinger/WebFingerPlugin.php b/plugins/WebFinger/WebFingerPlugin.php
new file mode 100644 (file)
index 0000000..3c7231a
--- /dev/null
+++ b/plugins/WebFinger/WebFingerPlugin.php
@@ -0,0 +1,97 @@
+<?php
+/*
+ * GNU Social - a federating social network
+ * Copyright (C) 2013, Free Software Foundation, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Implements WebFinger for GNU Social, as well as support for the
+ * '.well-known/host-meta' resource.
+ *
+ * Depends on: LRDD plugin
+ *
+ * @package GNUSocial
+ * @author  Mikael Nordfeldth <mmn@hethane.se>
+ */
+
+if (!defined('GNUSOCIAL')) { exit(1); }
+
+class WebFingerPlugin extends Plugin
+{
+    public function onRouterInitialized($m)
+    {
+        $m->connect('.well-known/host-meta', array('action' => 'hostmeta'));
+        $m->connect('.well-known/host-meta.:format',
+                        array('action' => 'hostmeta',
+                              'format' => '(xml|json)'));
+        // the resource GET parameter can be anywhere, so don't mention it here
+        $m->connect('.well-known/webfinger', array('action' => 'webfinger'));
+        $m->connect('.well-known/webfinger.:format',
+                        array('action' => 'webfinger',
+                              'format' => '(xml|json)'));
+        $m->connect('main/ownerxrd', array('action' => 'ownerxrd'));
+        return true;
+    }
+
+    public function onLoginAction($action, &$login)
+    {
+        switch ($action) {
+        case 'hostmeta':
+        case 'webfinger':
+            $login = true;
+            return false;
+        }
+        
+        return true;
+    }
+
+    public function onStartHostMetaLinks(array &$links)
+    {
+        foreach (Discovery::supportedMimeTypes() as $type) {
+            $links[] = new XML_XRD_Element_Link(Discovery::LRDD_REL,
+                            common_local_url('webfinger') . '?resource={uri}',
+                            $type,
+                            true);    // isTemplate
+        }
+    }
+
+    /**
+     * Add a link header for LRDD Discovery
+     */
+    public function onStartShowHTML($action)
+    {
+        if ($action instanceof ShowstreamAction) {
+            $acct = 'acct:'. $action->profile->nickname .'@'. common_config('site', 'server');
+            $url = common_local_url('webfinger') . '?resource='.$acct;
+
+            foreach (array(Discovery::JRD_MIMETYPE, Discovery::XRD_MIMETYPE) as $type) {
+                header('Link: <'.$url.'>; rel="'. Discovery::LRDD_REL.'"; type="'.$type.'"');
+            }
+        }
+    }
+
+    public function onPluginVersion(&$versions)
+    {
+        $versions[] = array('name' => 'WebFinger',
+                            'version' => STATUSNET_VERSION,
+                            'author' => 'Mikael Nordfeldth',
+                            'homepage' => 'http://www.gnu.org/software/social/',
+                            // TRANS: Plugin description.
+                            'rawdescription' => _m('Adds WebFinger lookup to GNU Social'));
+
+        return true;
+    }
+}