Merge branch '1.0.x' of git://gitorious.org/statusnet/mainline

13 files changed, 1294 insertions, 22 deletions

diff --git a/plugins/OStatus/OStatusPlugin.php b/plugins/OStatus/OStatusPlugin.php
index 70971c5b3..3b073a5d1 100644
--- a/plugins/OStatus/OStatusPlugin.php
+++ b/plugins/OStatus/OStatusPlugin.php
@@ -480,6 +480,24 @@ class OStatusPlugin extends Plugin
     }
 
     /**
+     * Tell the FeedSub infrastructure whether we have any active OStatus
+     * usage for the feed; if not it'll be able to garbage-collect the
+     * feed subscription.
+     * 
+     * @param FeedSub $feedsub
+     * @param integer $count in/out
+     * @return mixed hook return code
+     */
+    function onFeedSubSubscriberCount($feedsub, &$count)
+    {
+        $oprofile = Ostatus_profile::staticGet('feeduri', $feedsub->uri);
+        if ($oprofile) {
+            $count += $oprofile->subscriberCount();
+        }
+        return true;
+    }
+
+    /**
      * When about to subscribe to a remote user, start a server-to-server
      * PuSH subscription if needed. If we can't establish that, abort.
      *
diff --git a/plugins/OStatus/classes/FeedSub.php b/plugins/OStatus/classes/FeedSub.php
index b10509dae..9cd35e29c 100644
--- a/plugins/OStatus/classes/FeedSub.php
+++ b/plugins/OStatus/classes/FeedSub.php
@@ -255,6 +255,9 @@ class FeedSub extends Memcached_DataObject
     /**
      * Send a PuSH unsubscription request to the hub for this feed.
      * The hub will later send us a confirmation POST to /main/push/callback.
+     * Warning: this will cancel the subscription even if someone else in
+     * the system is using it. Most callers will want garbageCollect() instead,
+     * which confirms there's no uses left.
      *
      * @return bool true on success, false on failure
      * @throws ServerException if feed state is not valid
@@ -275,6 +278,33 @@ class FeedSub extends Memcached_DataObject
         return $this->doSubscribe('unsubscribe');
     }
 
+    /**
+     * Check if there are any active local uses of this feed, and if not then
+     * make sure it's inactive, unsubscribing if necessary.
+     *
+     * @return boolean true if the subscription is now inactive, false if still active.
+     */
+    public function garbageCollect()
+    {
+        if ($this->sub_state == '' || $this->sub_state == 'inactive') {
+            // No active PuSH subscription, we can just leave it be.
+            return true;
+        } else {
+            // PuSH subscription is either active or in an indeterminate state.
+            // Check if we're out of subscribers, and if so send an unsubscribe.
+            $count = 0;
+            Event::handle('FeedSubSubscriberCount', array($this, &$count));
+
+            if ($count) {
+                common_log(LOG_INFO, __METHOD__ . ': ok, ' . $count . ' user(s) left for ' . $this->uri);
+                return false;
+            } else {
+                common_log(LOG_INFO, __METHOD__ . ': unsubscribing, no users left for ' . $this->uri);
+                return $this->unsubscribe();
+            }
+        }
+    }
+
     protected function doSubscribe($mode)
     {
         $orig = clone($this);
diff --git a/plugins/OStatus/classes/Ostatus_profile.php b/plugins/OStatus/classes/Ostatus_profile.php
index 5d3f37cd0..2d7c632e6 100644
--- a/plugins/OStatus/classes/Ostatus_profile.php
+++ b/plugins/OStatus/classes/Ostatus_profile.php
@@ -215,22 +215,13 @@ class Ostatus_profile extends Memcached_DataObject
     }
 
     /**
-     * Send a PuSH unsubscription request to the hub for this feed.
-     * The hub will later send us a confirmation POST to /main/push/callback.
+     * Check if this remote profile has any active local subscriptions, and
+     * if not drop the PuSH subscription feed.
      *
      * @return bool true on success, false on failure
-     * @throws ServerException if feed state is not valid
      */
     public function unsubscribe() {
-        $feedsub = FeedSub::staticGet('uri', $this->feeduri);
-        if (!$feedsub || $feedsub->sub_state == '' || $feedsub->sub_state == 'inactive') {
-            // No active PuSH subscription, we can just leave it be.
-            return true;
-        } else {
-            // PuSH subscription is either active or in an indeterminate state.
-            // Send an unsubscribe.
-            return $feedsub->unsubscribe();
-        }
+        $this->garbageCollect();
     }
 
     /**
@@ -241,19 +232,35 @@ class Ostatus_profile extends Memcached_DataObject
      */
     public function garbageCollect()
     {
+        $feedsub = FeedSub::staticGet('uri', $this->feeduri);
+        return $feedsub->garbageCollect();
+    }
+
+    /**
+     * Check if this remote profile has any active local subscriptions, so the
+     * PuSH subscription layer can decide if it can drop the feed.
+     *
+     * This gets called via the FeedSubSubscriberCount event when running
+     * FeedSub::garbageCollect().
+     *
+     * @return int
+     */
+    public function subscriberCount()
+    {
         if ($this->isGroup()) {
             $members = $this->localGroup()->getMembers(0, 1);
             $count = $members->N;
         } else {
             $count = $this->localProfile()->subscriberCount();
         }
-        if ($count == 0) {
-            common_log(LOG_INFO, "Unsubscribing from now-unused remote feed $this->feeduri");
-            $this->unsubscribe();
-            return true;
-        } else {
-            return false;
-        }
+        common_log(LOG_INFO, __METHOD__ . " SUB COUNT BEFORE: $count");
+
+        // Other plugins may be piggybacking on OStatus without having
+        // an active group or user-to-user subscription we know about.
+        Event::handle('Ostatus_profileSubscriberCount', array($this, &$count));
+        common_log(LOG_INFO, __METHOD__ . " SUB COUNT AFTER: $count");
+
+        return $count;
     }
 
     /**
diff --git a/plugins/OStatus/lib/magicenvelope.php b/plugins/OStatus/lib/magicenvelope.php
index 3bdf24b31..967e5f6d1 100644
--- a/plugins/OStatus/lib/magicenvelope.php
+++ b/plugins/OStatus/lib/magicenvelope.php
@@ -210,13 +210,13 @@ class MagicEnvelope
         }
 
         $data_element = $env_element->getElementsByTagNameNS(MagicEnvelope::NS, 'data')->item(0);
-        
+        $sig_element = $env_element->getElementsByTagNameNS(MagicEnvelope::NS, 'sig')->item(0);
         return array(
-            'data' => trim($data_element->nodeValue),
+            'data' => preg_replace('/\s/', '', $data_element->nodeValue),
             'data_type' => $data_element->getAttribute('type'),
             'encoding' => $env_element->getElementsByTagNameNS(MagicEnvelope::NS, 'encoding')->item(0)->nodeValue,
             'alg' => $env_element->getElementsByTagNameNS(MagicEnvelope::NS, 'alg')->item(0)->nodeValue,
-            'sig' => $env_element->getElementsByTagNameNS(MagicEnvelope::NS, 'sig')->item(0)->nodeValue,
+            'sig' => preg_replace('/\s/', '', $sig_element->nodeValue),
         );
     }
 
diff --git a/plugins/SubMirror/SubMirrorPlugin.php b/plugins/SubMirror/SubMirrorPlugin.php
new file mode 100644
index 000000000..7289e7793
--- /dev/null
+++ b/plugins/SubMirror/SubMirrorPlugin.php
@@ -0,0 +1,165 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2009-2010, 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/>.
+ */
+
+/**
+ * @package SubMirrorPlugin
+ * @maintainer Brion Vibber <brion@status.net>
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
+
+
+class SubMirrorPlugin extends Plugin
+{
+    /**
+     * Hook for RouterInitialized event.
+     *
+     * @param Net_URL_Mapper $m path-to-action mapper
+     * @return boolean hook return
+     */
+    function onRouterInitialized($m)
+    {
+        $m->connect('settings/mirror',
+                    array('action' => 'mirrorsettings'));
+        $m->connect('settings/mirror/add',
+                    array('action' => 'addmirror'));
+        $m->connect('settings/mirror/edit',
+                    array('action' => 'editmirror'));
+        return true;
+    }
+
+    /**
+     * Automatically load the actions and libraries used by the plugin
+     *
+     * @param Class $cls the class
+     *
+     * @return boolean hook return
+     *
+     */
+    function onAutoload($cls)
+    {
+        $base = dirname(__FILE__);
+        $lower = strtolower($cls);
+        $files = array("$base/lib/$lower.php",
+                       "$base/classes/$cls.php");
+        if (substr($lower, -6) == 'action') {
+            $files[] = "$base/actions/" . substr($lower, 0, -6) . ".php";
+        }
+        foreach ($files as $file) {
+            if (file_exists($file)) {
+                include_once $file;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    function handle($notice)
+    {
+        // Is anybody mirroring?
+        $mirror = new SubMirror();
+        $mirror->subscribed = $notice->profile_id;
+        if ($mirror->find()) {
+            while ($mirror->fetch()) {
+                $mirror->repeat($notice);
+            }
+        }
+    }
+
+    function onPluginVersion(&$versions)
+    {
+        $versions[] = array('name' => 'SubMirror',
+                            'version' => STATUSNET_VERSION,
+                            'author' => 'Brion Vibber',
+                            'homepage' => 'http://status.net/wiki/Plugin:SubMirror',
+                            'rawdescription' =>
+                            _m('Pull feeds into your timeline!'));
+
+        return true;
+    }
+
+    /**
+     * Menu item for settings
+     *
+     * @param Action &$action Action being executed
+     *
+     * @return boolean hook return
+     */
+
+    function onEndAccountSettingsNav(&$action)
+    {
+        $action_name = $action->trimmed('action');
+
+        $action->menuItem(common_local_url('mirrorsettings'),
+                          // TRANS: SubMirror plugin menu item on user settings page.
+                          _m('MENU', 'Mirroring'),
+                          // TRANS: SubMirror plugin tooltip for user settings menu item.
+                          _m('Configure mirroring of posts from other feeds'),
+                          $action_name === 'mirrorsettings');
+
+        return true;
+    }
+
+    function onCheckSchema()
+    {
+        $schema = Schema::get();
+        $schema->ensureTable('submirror', SubMirror::schemaDef());
+        return true;
+    }
+
+    /**
+     * Set up queue handlers for outgoing hub pushes
+     * @param QueueManager $qm
+     * @return boolean hook return
+     */
+    function onEndInitializeQueueManager(QueueManager $qm)
+    {
+        // After each notice save, check if there's any repeat mirrors.
+        $qm->connect('mirror', 'MirrorQueueHandler');
+        return true;
+    }
+
+    function onStartEnqueueNotice($notice, &$transports)
+    {
+        $transports[] = 'mirror';
+    }
+
+    /**
+     * Let the OStatus subscription garbage collection know if we're
+     * making use of a remote feed, so it doesn't get dropped out
+     * from under us.
+     *
+     * @param Ostatus_profile $oprofile
+     * @param int $count in/out
+     * @return mixed hook return value
+     */
+    function onOstatus_profileSubscriberCount($oprofile, &$count)
+    {
+        if ($oprofile->profile_id) {
+            $mirror = new SubMirror();
+            $mirror->subscribed = $oprofile->profile_id;
+            if ($mirror->find()) {
+                while ($mirror->fetch()) {
+                    $count++;
+                }
+            }
+        }
+        return true;
+    }
+}
diff --git a/plugins/SubMirror/actions/addmirror.php b/plugins/SubMirror/actions/addmirror.php
new file mode 100644
index 000000000..5acdf1dfe
--- /dev/null
+++ b/plugins/SubMirror/actions/addmirror.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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/>.
+ *
+ * PHP version 5
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Takes parameters:
+ *
+ *    - feed: a profile ID
+ *    - token: session token to prevent CSRF attacks
+ *    - ajax: boolean; whether to return Ajax or full-browser results
+ *
+ * Only works if the current user is logged in.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+class AddMirrorAction extends BaseMirrorAction
+{
+    var $feedurl;
+
+    /**
+     * Check pre-requisites and instantiate attributes
+     *
+     * @param Array $args array of arguments (URL, GET, POST)
+     *
+     * @return boolean success flag
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+        $this->feedurl = $this->validateFeedUrl($this->trimmed('feedurl'));
+        $this->profile = $this->profileForFeed($this->feedurl);
+        return true;
+    }
+
+    function saveMirror()
+    {
+        if ($this->oprofile->subscribe()) {
+            SubMirror::saveMirror($this->user, $this->profile);
+        } else {
+            $this->serverError(_m("Could not subscribe to feed."));
+        }
+    }
+}
diff --git a/plugins/SubMirror/actions/basemirror.php b/plugins/SubMirror/actions/basemirror.php
new file mode 100644
index 000000000..5be0699f0
--- /dev/null
+++ b/plugins/SubMirror/actions/basemirror.php
@@ -0,0 +1,169 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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/>.
+ *
+ * PHP version 5
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Takes parameters:
+ *
+ *    - feed: a profile ID
+ *    - token: session token to prevent CSRF attacks
+ *    - ajax: boolean; whether to return Ajax or full-browser results
+ *
+ * Only works if the current user is logged in.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+abstract class BaseMirrorAction extends Action
+{
+    var $user;
+    var $profile;
+
+    /**
+     * Check pre-requisites and instantiate attributes
+     *
+     * @param Array $args array of arguments (URL, GET, POST)
+     *
+     * @return boolean success flag
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+        return $this->sharedBoilerplate();
+    }
+
+    protected function validateFeedUrl($url)
+    {
+        if (common_valid_http_url($url)) {
+            return $url;
+        } else {
+            $this->clientError(_m("Invalid feed URL."));
+        }
+    }
+
+    protected function validateProfile($id)
+    {
+        $id = intval($id);
+        $profile = Profile::staticGet('id', $id);
+        if ($profile && $profile->id != $this->user->id) {
+            return $profile;
+        }
+        // TRANS: Error message returned to user when setting up feed mirroring, but we were unable to resolve the given URL to a working feed.
+        $this->clientError(_m("Invalid profile for mirroring."));
+    }
+
+    /**
+     *
+     * @param string $url
+     * @return Profile
+     */
+    protected function profileForFeed($url)
+    {
+        $oprofile = Ostatus_profile::ensureProfileURL($url);
+        if ($oprofile->isGroup()) {
+            $this->clientError(_m("Can't mirror a StatusNet group at this time."));
+        }
+        $this->oprofile = $oprofile; // @fixme ugly side effect :D
+        return $oprofile->localProfile();
+    }
+
+    /**
+     * @fixme none of this belongs in end classes
+     * this stuff belongs in shared code!
+     */
+    function sharedBoilerplate()
+    {
+        // Only allow POST requests
+
+        if ($_SERVER['REQUEST_METHOD'] != 'POST') {
+            $this->clientError(_('This action only accepts POST requests.'));
+            return false;
+        }
+
+        // CSRF protection
+
+        $token = $this->trimmed('token');
+
+        if (!$token || $token != common_session_token()) {
+            $this->clientError(_('There was a problem with your session token.'.
+                                 ' Try again, please.'));
+            return false;
+        }
+
+        // Only for logged-in users
+
+        $this->user = common_current_user();
+
+        if (empty($this->user)) {
+            $this->clientError(_('Not logged in.'));
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Handle request
+     *
+     * Does the subscription and returns results.
+     *
+     * @param Array $args unused.
+     *
+     * @return void
+     */
+
+    function handle($args)
+    {
+        // Throws exception on error
+        $this->saveMirror();
+
+        if ($this->boolean('ajax')) {
+            $this->startHTML('text/xml;charset=utf-8');
+            $this->elementStart('head');
+            $this->element('title', null, _('Subscribed'));
+            $this->elementEnd('head');
+            $this->elementStart('body');
+            $unsubscribe = new EditMirrorForm($this, $this->profile);
+            $unsubscribe->show();
+            $this->elementEnd('body');
+            $this->elementEnd('html');
+        } else {
+            $url = common_local_url('mirrorsettings');
+            common_redirect($url, 303);
+        }
+    }
+
+    abstract function saveMirror();
+}
diff --git a/plugins/SubMirror/actions/editmirror.php b/plugins/SubMirror/actions/editmirror.php
new file mode 100644
index 000000000..c7fdab0d6
--- /dev/null
+++ b/plugins/SubMirror/actions/editmirror.php
@@ -0,0 +1,112 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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/>.
+ *
+ * PHP version 5
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+    exit(1);
+}
+
+/**
+ * Takes parameters:
+ *
+ *    - feed: a profile ID
+ *    - token: session token to prevent CSRF attacks
+ *    - ajax: boolean; whether to return Ajax or full-browser results
+ *
+ * Only works if the current user is logged in.
+ *
+ * @category  Action
+ * @package   StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link      http://status.net/
+ */
+
+class EditMirrorAction extends BaseMirrorAction
+{
+
+    /**
+     * Check pre-requisites and instantiate attributes
+     *
+     * @param Array $args array of arguments (URL, GET, POST)
+     *
+     * @return boolean success flag
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+
+        $this->profile = $this->validateProfile($this->trimmed('profile'));
+
+        $this->mirror = SubMirror::pkeyGet(array('subscriber' => $this->user->id,
+                                                 'subscribed' => $this->profile->id));
+
+        if (!$this->mirror) {
+            $this->clientError(_m("Requested invalid profile to edit."));
+        }
+
+        $this->style = $this->validateStyle($this->trimmed('style'));
+
+        // DO NOT change to $this->boolean(), it will be wrong.
+        // We're checking for the presence of the setting, not its value.
+        $this->delete = (bool)$this->arg('delete');
+
+        return true;
+    }
+
+    protected function validateStyle($style)
+    {
+        $allowed = array('repeat', 'copy');
+        if (in_array($style, $allowed)) {
+            return $style;
+        } else {
+            $this->clientError(_m("Bad form data."));
+        }
+    }
+
+    function saveMirror()
+    {
+        $mirror = SubMirror::getMirror($this->user, $this->profile);
+        if (!$mirror) {
+            $this->clientError(_m('Requested edit of missing mirror'));
+        }
+
+        if ($this->delete) {
+            $mirror->delete();
+            $oprofile = Ostatus_profile::staticGet('profile_id', $this->profile->id);
+            if ($oprofile) {
+                $oprofile->garbageCollect();
+            }
+        } else if ($this->style != $mirror->style) {
+            $orig = clone($mirror);
+            $mirror->style = $this->style;
+            $mirror->modified = common_sql_now();
+            $mirror->update($orig);
+        }
+    }
+}
diff --git a/plugins/SubMirror/actions/mirrorsettings.php b/plugins/SubMirror/actions/mirrorsettings.php
new file mode 100644
index 000000000..5463a8dc0
--- /dev/null
+++ b/plugins/SubMirror/actions/mirrorsettings.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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  Plugins
+ * @package   StatusNet
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+class MirrorSettingsAction extends AccountSettingsAction
+{
+    /**
+     * Title of the page
+     *
+     * @return string Page title
+     */
+
+    function title()
+    {
+        return _m('Feed mirror settings');
+    }
+
+    /**
+     * Instructions for use
+     *
+     * @return string Instructions for use
+     */
+
+    function getInstructions()
+    {
+        return _m('You can mirror updates from many RSS and Atom feeds ' .
+                  'into your StatusNet timeline!');
+    }
+
+    /**
+     * Show the form for OpenID management
+     *
+     * We have one form with a few different submit buttons to do different things.
+     *
+     * @return void
+     */
+
+    function showContent()
+    {
+        $user = common_current_user();
+
+        $this->showAddFeedForm();
+        
+        $mirror = new SubMirror();
+        $mirror->subscriber = $user->id;
+        if ($mirror->find()) {
+            while ($mirror->fetch()) {
+                $this->showFeedForm($mirror);
+            }
+        }
+    }
+
+    function showFeedForm($mirror)
+    {
+        $profile = Profile::staticGet('id', $mirror->subscribed);
+        if ($profile) {
+            $form = new EditMirrorForm($this, $profile);
+            $form->show();
+        }
+    }
+
+    function showAddFeedForm()
+    {
+        $form = new AddMirrorForm($this);
+        $form->show();
+    }
+
+    /**
+     * Handle a POST request
+     *
+     * Muxes to different sub-functions based on which button was pushed
+     *
+     * @return void
+     */
+
+    function handlePost()
+    {
+    }
+}
diff --git a/plugins/SubMirror/classes/SubMirror.php b/plugins/SubMirror/classes/SubMirror.php
new file mode 100644
index 000000000..4e7e005db
--- /dev/null
+++ b/plugins/SubMirror/classes/SubMirror.php
@@ -0,0 +1,213 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, 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/>.
+ */
+
+/**
+ * @package SubMirrorPlugin
+ * @maintainer Brion Vibber <brion@status.net>
+ */
+
+class SubMirror extends Memcached_DataObject
+{
+    public $__table = 'submirror';
+
+    public $subscriber;
+    public $subscribed;
+
+    public $style;
+
+    public $created;
+    public $modified;
+
+    public /*static*/ function staticGet($k, $v=null)
+    {
+        return parent::staticGet(__CLASS__, $k, $v);
+    }
+
+    /**
+     * return table definition for DB_DataObject
+     *
+     * DB_DataObject needs to know something about the table to manipulate
+     * instances. This method provides all the DB_DataObject needs to know.
+     *
+     * @return array array of column definitions
+     */
+
+    function table()
+    {
+        return array('subscriber' =>  DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
+                     'subscribed' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
+
+                     'style' => DB_DATAOBJECT_STR,
+
+                     'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL,
+                     'modified' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
+    }
+
+    static function schemaDef()
+    {
+        // @fixme need a reverse key on (subscribed, subscriber) as well
+        return array(new ColumnDef('subscriber', 'integer',
+                                   null, false, 'PRI'),
+                     new ColumnDef('subscribed', 'integer',
+                                   null, false, 'PRI'),
+
+                     new ColumnDef('style', 'varchar',
+                                   16, true),
+
+                     new ColumnDef('created', 'datetime',
+                                   null, false),
+                     new ColumnDef('modified', 'datetime',
+                                   null, false));
+    }
+
+    /**
+     * return key definitions for DB_DataObject
+     *
+     * DB_DataObject needs to know about keys that the table has; this function
+     * defines them.
+     *
+     * @return array key definitions
+     */
+
+    function keys()
+    {
+        return array_keys($this->keyTypes());
+    }
+
+    /**
+     * return key definitions for Memcached_DataObject
+     *
+     * Our caching system uses the same key definitions, but uses a different
+     * method to get them.
+     *
+     * @return array key definitions
+     */
+
+    function keyTypes()
+    {
+        // @fixme keys
+        // need a sane key for reverse lookup too
+        return array('subscriber' => 'K', 'subscribed' => 'K');
+    }
+
+    function sequenceKey()
+    {
+        return array(false, false, false);
+    }
+
+    /**
+     * @param Profile $subscribed
+     * @param Profile $subscribed
+     * @return SubMirror
+     * @throws ServerException
+     */
+    public static function saveMirror($subscriber, $subscribed, $style='repeat')
+    {
+        // @fixme make sure they're subscribed!
+        $mirror = new SubMirror();
+
+        $mirror->subscriber = $subscriber->id;
+        $mirror->subscribed = $subscribed->id;
+        $mirror->style = $style;
+
+        $mirror->created = common_sql_now();
+        $mirror->modified = common_sql_now();
+        $mirror->insert();
+        
+        return $mirror;
+    }
+
+    /**
+     * @param Notice $notice
+     * @return mixed Notice on successful mirroring, boolean if not
+     */
+    public function mirrorNotice($notice)
+    {
+        $profile = Profile::staticGet('id', $this->subscriber);
+        if (!$profile) {
+            common_log(LOG_ERROR, "SubMirror plugin skipping auto-repeat of notice $notice->id for missing user $profile->id");
+            return false;
+        }
+
+        if ($this->style == 'copy') {
+            return $this->copyNotice($profile, $notice);
+        } else { // default to repeat mode
+            return $this->repeatNotice($profile, $notice);
+        }
+    }
+
+    /**
+     * Mirror a notice using StatusNet's repeat functionality.
+     * This retains attribution within the site, and other nice things,
+     * but currently ends up looking like 'RT @foobar bla bla' when
+     * bridged out over OStatus or TwitterBridge.
+     * 
+     * @param Notice $notice
+     * @return mixed Notice on successful repeat, true if already repeated, false on failure
+     */
+    protected function repeatNotice($profile, $notice)
+    {
+        if($profile->hasRepeated($notice->id)) {
+            common_log(LOG_INFO, "SubMirror plugin skipping auto-repeat of notice $notice->id for user $profile->id; already repeated.");
+            return true;
+        } else {
+            common_log(LOG_INFO, "SubMirror plugin auto-repeating notice $notice->id for $profile->id");
+            return $notice->repeat($profile->id, 'mirror');
+        }
+    }
+
+    /**
+     * Mirror a notice by emitting a new notice with the same contents.
+     * Kind of dirty, but if pulling an external data feed into an account
+     * that may be what you want.
+     * 
+     * @param Notice $notice
+     * @return mixed Notice on successful repeat, true if already repeated, false on failure
+     */
+    protected function copyNotice($profile, $notice)
+    {
+        $options = array('is_local' => Notice::LOCAL_PUBLIC,
+                         'url' => $notice->bestUrl(), // pass through the foreign link...
+                         'rendered' => $notice->rendered);
+
+        $saved = Notice::saveNew($profile->id,
+                                 $notice->content,
+                                 'feed',
+                                 $options);
+        return $saved;
+    }
+
+    public /*static*/ function pkeyGet($v)
+    {
+        return parent::pkeyGet(__CLASS__, $v);
+    }
+
+    /**
+     * Get the mirroring setting for a pair of profiles, if existing.
+     * 
+     * @param Profile $subscriber
+     * @param Profile $subscribed
+     * @return mixed Profile or empty
+     */
+    public static function getMirror($subscriber, $subscribed)
+    {
+        return self::pkeyGet(array('subscriber' => $subscriber->id,
+                                   'subscribed' => $subscribed->id));
+    }
+}
diff --git a/plugins/SubMirror/lib/addmirrorform.php b/plugins/SubMirror/lib/addmirrorform.php
new file mode 100644
index 000000000..0a798c9ea
--- /dev/null
+++ b/plugins/SubMirror/lib/addmirrorform.php
@@ -0,0 +1,141 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ * PHP version 5
+ *
+ * LICENCE: 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/>.
+ *
+ * @package   StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+class AddMirrorForm extends Form
+{
+
+    /**
+     * Name of the form
+     *
+     * Sub-classes should overload this with the name of their form.
+     *
+     * @return void
+     */
+
+    function formLegend()
+    {
+    }
+
+    /**
+     * Visible or invisible data elements
+     *
+     * Display the form fields that make up the data of the form.
+     * Sub-classes should overload this to show their data.
+     *
+     * @return void
+     */
+
+    function formData()
+    {
+        $this->out->elementStart('fieldset');
+
+        $this->out->elementStart('ul');
+
+        $this->li();
+        $this->doInput('addmirror-feedurl',
+                       'feedurl',
+                       _m('Web page or feed URL:'),
+                       $this->out->trimmed('feedurl'));
+        $this->unli();
+
+        $this->li();
+        $this->out->submit('addmirror-save', _m('Add feed'));
+        $this->unli();
+        $this->out->elementEnd('ul');
+        $this->out->elementEnd('fieldset');
+    }
+
+    private function doInput($id, $name, $label, $value=null, $instructions=null)
+    {
+        $this->out->element('label', array('for' => $id), $label);
+        $attrs = array('name' => $name,
+                       'type' => 'text',
+                       'id' => $id,
+                       'style' => 'width: 80%');
+        if ($value) {
+            $attrs['value'] = $value;
+        }
+        $this->out->element('input', $attrs);
+        if ($instructions) {
+            $this->out->element('p', 'form_guide', $instructions);
+        }
+    }
+
+    /**
+     * Buttons for form actions
+     *
+     * Submit and cancel buttons (or whatever)
+     * Sub-classes should overload this to show their own buttons.
+     *
+     * @return void
+     */
+
+    function formActions()
+    {
+    }
+
+    /**
+     * ID of the form
+     *
+     * Should be unique on the page. Sub-classes should overload this
+     * to show their own IDs.
+     *
+     * @return string ID of the form
+     */
+
+    function id()
+    {
+        return 'add-mirror-form';
+    }
+
+    /**
+     * Action of the form.
+     *
+     * URL to post to. Should be overloaded by subclasses to give
+     * somewhere to post to.
+     *
+     * @return string URL to post to
+     */
+
+    function action()
+    {
+        return common_local_url('addmirror');
+    }
+
+    /**
+     * Class of the form.
+     *
+     * @return string the form's class
+     */
+
+    function formClass()
+    {
+        return 'form_settings';
+    }
+
+}
diff --git a/plugins/SubMirror/lib/editmirrorform.php b/plugins/SubMirror/lib/editmirrorform.php
new file mode 100644
index 000000000..8236da389
--- /dev/null
+++ b/plugins/SubMirror/lib/editmirrorform.php
@@ -0,0 +1,189 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ * PHP version 5
+ *
+ * LICENCE: 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/>.
+ *
+ * @package   StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+class EditMirrorForm extends Form
+{
+    function __construct($action, $profile)
+    {
+        parent::__construct($action);
+
+        $this->profile = clone($profile);
+        $this->user = common_current_user();
+        $this->mirror = SubMirror::pkeyGet(array('subscriber' => $this->user->id,
+                                                 'subscribed' => $this->profile->id));
+    }
+
+    /**
+     * Name of the form
+     *
+     * Sub-classes should overload this with the name of their form.
+     *
+     * @return void
+     */
+
+    function formLegend()
+    {
+    }
+
+    /**
+     * Visible or invisible data elements
+     *
+     * Display the form fields that make up the data of the form.
+     * Sub-classes should overload this to show their data.
+     *
+     * @return void
+     */
+
+    function formData()
+    {
+        $this->out->elementStart('fieldset');
+
+        $this->out->hidden('profile', $this->profile->id);
+
+        $this->out->elementStart('div', array('style' => 'float: left; width: 80px;'));
+        $img = $this->getAvatar($this->profile);
+        $feed = $this->getFeed($this->profile);
+        $this->out->elementStart('a', array('href' => $this->profile->profileurl));
+        $this->out->element('img', array('src' => $img, 'style' => 'float: left'));
+        $this->out->elementEnd('a');
+        $this->out->elementEnd('div');
+
+
+        $this->out->elementStart('div', array('style' => 'margin-left: 80px; margin-right: 20px'));
+        $this->out->elementStart('p');
+        $this->out->elementStart('div');
+        $this->out->element('a', array('href' => $this->profile->profileurl), $this->profile->getBestName());
+        $this->out->elementEnd('div');
+        $this->out->elementStart('div');
+        if ($feed) {
+            $this->out->text(_m('LABEL', 'Remote feed:') . ' ');
+            //$this->out->element('a', array('href' => $feed), $feed);
+            $this->out->element('input', array('value' => $feed, 'readonly' => 'readonly', 'style' => 'width: 100%'));
+        } else {
+            $this->out->text(_m('LABEL', 'Local user'));
+        }
+        $this->out->elementEnd('div');
+        $this->out->elementEnd('p');
+
+        $this->out->elementStart('fieldset', array('style' => 'margin-top: 20px'));
+        $this->out->element('legend', false, _m("Mirroring style"));
+
+        $styles = array('repeat' => _m("Repeat: reference the original user's post (sometimes shows as 'RT @blah')"),
+                        'copy' => _m("Repost the content under my account"));
+        foreach ($styles as $key => $label) {
+            $this->out->elementStart('div');
+            $attribs = array('type' => 'radio',
+                             'value' => $key,
+                             'name' => 'style',
+                             'id' => $this->id() . '-style');
+            if ($key == $this->mirror->style || ($key == 'repeat' && empty($this->mirror->style))) {
+                $attribs['checked'] = 'checked';
+            }
+            $this->out->element('input', $attribs);
+            $this->out->element('span', false, $label); // @fixme should be label, but the styles muck it up for now
+            $this->out->elementEnd('div');
+
+        }
+        $this->out->elementEnd('fieldset');
+
+        
+        $this->out->elementStart('div');
+        $this->out->submit($this->id() . '-save', _m('Save'));
+        $this->out->element('input', array('type' => 'submit',
+                                           'value' => _m('Stop mirroring'),
+                                           'name' => 'delete',
+                                           'class' => 'submit'));
+        $this->out->elementEnd('div');
+
+        $this->out->elementEnd('div');
+        $this->out->elementEnd('fieldset');
+    }
+
+    private function getAvatar($profile)
+    {
+        $avatar = $this->profile->getAvatar(48);
+        if ($avatar) {
+            return $avatar->displayUrl();
+        } else {
+            return Avatar::defaultImage(48);
+        }
+    }
+
+    private function getFeed($profile)
+    {
+        // Ok this is a bit of a hack. ;)
+        if (class_exists('Ostatus_profile')) {
+            $oprofile = Ostatus_profile::staticGet('profile_id', $profile->id);
+            if ($oprofile) {
+                return $oprofile->feeduri;
+            }
+        }
+        var_dump('wtf');
+        return false;
+    }
+
+    /**
+     * ID of the form
+     *
+     * Should be unique on the page. Sub-classes should overload this
+     * to show their own IDs.
+     *
+     * @return string ID of the form
+     */
+
+    function id()
+    {
+        return 'edit-mirror-form-' . $this->profile->id;
+    }
+
+    /**
+     * Action of the form.
+     *
+     * URL to post to. Should be overloaded by subclasses to give
+     * somewhere to post to.
+     *
+     * @return string URL to post to
+     */
+
+    function action()
+    {
+        return common_local_url('editmirror');
+    }
+
+    /**
+     * Class of the form.
+     *
+     * @return string the form's class
+     */
+
+    function formClass()
+    {
+        return 'form_settings';
+    }
+
+}
diff --git a/plugins/SubMirror/lib/mirrorqueuehandler.php b/plugins/SubMirror/lib/mirrorqueuehandler.php
new file mode 100644
index 000000000..92b36b5eb
--- /dev/null
+++ b/plugins/SubMirror/lib/mirrorqueuehandler.php
@@ -0,0 +1,45 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Check for subscription mirroring options on each newly seen post!
+ *
+ * @package SubMirror
+ * @author Brion Vibber <brion@status.net>
+ */
+
+class MirrorQueueHandler extends QueueHandler
+{
+    function transport()
+    {
+        return 'mirror';
+    }
+
+    function handle($notice)
+    {
+        $mirror = new SubMirror();
+        $mirror->subscribed = $notice->profile_id;
+        if ($mirror->find()) {
+            while ($mirror->fetch()) {
+                $mirror->mirrorNotice($notice);
+            }
+        }
+        return true;
+    }
+}