Account moving is a background activity

[quix0rs-gnu-social.git] / lib / activitymover.php

diff --git a/lib/activitymover.php b/lib/activitymover.php
new file mode 100644 (file)
index 0000000..7032331
--- /dev/null
+++ b/lib/activitymover.php
@@ -0,0 +1,168 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, StatusNet, Inc.
+ *
+ * Title of module
+ * 
+ * PHP version 5
+ *
+ * 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/>.
+ *
+ * @category  Cache
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    // This check helps protect against security problems;
+    // your code file can't be executed directly from the web.
+    exit(1);
+}
+
+/**
+ * Class comment
+ *
+ * @category  General
+ * @package   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link      http://status.net/
+ */
+
+class ActivityMover extends QueueHandler
+{
+    function transport()
+    {
+        return 'actmove';
+    }
+    
+    function handle($data)
+    {
+        list ($act, $sink, $userURI, $remoteURI) = $data;
+
+        $user   = User::staticGet('uri', $userURI);
+        $remote = Profile::fromURI($remoteURI);
+
+        try {
+            $this->moveActivity($act, $sink, $user, $remote);
+        } catch (ClientException $cex) {
+            $this->log(LOG_WARNING,
+                       $cex->getMessage());
+            // "don't retry me"
+            return true;
+        } catch (ServerException $sex) {
+            $this->log(LOG_WARNING,
+                       $sex->getMessage());
+            // "retry me" (because we think the server might handle it next time)
+            return false;
+        } catch (Exception $ex) {
+            $this->log(LOG_WARNING,
+                       $ex->getMessage());
+            // "don't retry me"
+            return true;
+        }
+    }
+
+    function moveActivity($act, $sink, $user, $remote)
+    {
+        if (empty($user)) {
+            throw new Exception("No such user {$act->actor->id}");
+        }
+
+        switch ($act->verb) {
+        case ActivityVerb::FAVORITE:
+            $this->log(LOG_INFO,
+                       "Moving favorite of {$act->objects[0]->id} by ".
+                       "{$act->actor->id} to {$remote->nickname}.");
+            // push it, then delete local
+            $sink->postActivity($act);
+            $notice = Notice::staticGet('uri', $act->objects[0]->id);
+            if (!empty($notice)) {
+                $fave = Fave::pkeyGet(array('user_id' => $user->id,
+                                            'notice_id' => $notice->id));
+                $fave->delete();
+            }
+            break;
+        case ActivityVerb::POST:
+            $this->log(LOG_INFO,
+                       "Moving notice {$act->objects[0]->id} by ".
+                       "{$act->actor->id} to {$remote->nickname}.");
+            // XXX: send a reshare, not a post
+            $sink->postActivity($act);
+            $notice = Notice::staticGet('uri', $act->objects[0]->id);
+            if (!empty($notice)) {
+                $notice->delete();
+            }
+            break;
+        case ActivityVerb::JOIN:
+            $this->log(LOG_INFO,
+                       "Moving group join of {$act->objects[0]->id} by ".
+                       "{$act->actor->id} to {$remote->nickname}.");
+            $sink->postActivity($act);
+            $group = User_group::staticGet('uri', $act->objects[0]->id);
+            if (!empty($group)) {
+                Group_member::leave($group->id, $user->id);
+            }
+            break;
+        case ActivityVerb::FOLLOW:
+            if ($act->actor->id == $user->uri) {
+                $this->log(LOG_INFO,
+                           "Moving subscription to {$act->objects[0]->id} by ".
+                           "{$act->actor->id} to {$remote->nickname}.");
+                $sink->postActivity($act);
+                $other = Profile::fromURI($act->objects[0]->id);
+                if (!empty($other)) {
+                    Subscription::cancel($user->getProfile(), $other);
+                }
+            } else {
+                $otherUser = User::staticGet('uri', $act->actor->id);
+                if (!empty($otherUser)) {
+                    $this->log(LOG_INFO,
+                               "Changing sub to {$act->objects[0]->id}".
+                               "by {$act->actor->id} to {$remote->nickname}.");
+                    $otherProfile = $otherUser->getProfile();
+                    Subscription::start($otherProfile, $remote);
+                    Subscription::cancel($otherProfile, $user->getProfile());
+                } else {
+                    $this->log(LOG_NOTICE,
+                               "Not changing sub to {$act->objects[0]->id}".
+                               "by remote {$act->actor->id} ".
+                               "to {$remote->nickname}.");
+                }
+            }
+            break;
+        }
+    }
+
+    /**
+     * Log some data
+     * 
+     * Add a header for our class so we know who did it.
+     *
+     * @param int    $level   Log level, like LOG_ERR or LOG_INFO
+     * @param string $message Message to log
+     *
+     * @return void
+     */
+
+    protected function log($level, $message)
+    {
+        common_log($level, "ActivityMover: " . $message);
+    }
+}