From 78e5a5980a21c04cfdacb993ca3c37bf65d21783 Mon Sep 17 00:00:00 2001
From: Zach Copley <zach@status.net>
Date: Tue, 20 Oct 2009 16:32:30 -0700
Subject: Extract out Facebook app stuff into a plugin

---
 plugins/Facebook/facebookremove.php | 69 +++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 plugins/Facebook/facebookremove.php

(limited to 'plugins/Facebook/facebookremove.php')

diff --git a/plugins/Facebook/facebookremove.php b/plugins/Facebook/facebookremove.php
new file mode 100644
index 000000000..8531a8e6e
--- /dev/null
+++ b/plugins/Facebook/facebookremove.php
@@ -0,0 +1,69 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, 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/>.
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+require_once INSTALLDIR . '/plugins/Facebook/facebookaction.php';
+
+class FacebookremoveAction extends FacebookAction
+{
+
+    function handle($args)
+    {
+        parent::handle($args);
+
+        $secret = common_config('facebook', 'secret');
+
+        $sig = '';
+
+        ksort($_POST);
+
+        foreach ($_POST as $key => $val) {
+            if (substr($key, 0, 7) == 'fb_sig_') {
+                $sig .= substr($key, 7) . '=' . $val;
+            }
+         }
+
+        $sig .= $secret;
+        $verify = md5($sig);
+
+        if ($verify == $this->arg('fb_sig')) {
+
+            $flink = Foreign_link::getByForeignID($this->arg('fb_sig_user'), 2);
+
+            common_debug("Removing foreign link to Facebook - local user ID: $flink->user_id, Facebook ID: $flink->foreign_id");
+
+            $result = $flink->delete();
+
+            if (!$result) {
+                common_log_db_error($flink, 'DELETE', __FILE__);
+                $this->serverError(_('Couldn\'t remove Facebook user.'));
+                return;
+            }
+
+        } else {
+            # Someone bad tried to remove facebook link?
+            common_log(LOG_ERR, "Someone from $_SERVER[REMOTE_ADDR] " .
+                'unsuccessfully tried to remove a foreign link to Facebook!');
+        }
+    }
+
+}
-- 
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