339 lines
10 KiB
PHP
339 lines
10 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2009-2010, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @package OStatusPlugin
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* @maintainer Brion Vibber <brion@status.net>
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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class FeedSubException extends Exception
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{
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}
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class OStatusPlugin extends Plugin
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{
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/**
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* Hook for RouterInitialized event.
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*
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* @param Net_URL_Mapper $m path-to-action mapper
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* @return boolean hook return
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*/
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function onRouterInitialized($m)
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{
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// Discovery actions
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$m->connect('.well-known/host-meta',
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array('action' => 'hostmeta'));
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$m->connect('main/webfinger',
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array('action' => 'webfinger'));
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$m->connect('main/ostatus',
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array('action' => 'ostatusinit'));
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$m->connect('main/ostatus?nickname=:nickname',
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array('action' => 'ostatusinit'), array('nickname' => '[A-Za-z0-9_-]+'));
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$m->connect('main/ostatussub',
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array('action' => 'ostatussub'));
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$m->connect('main/ostatussub',
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array('action' => 'ostatussub'), array('feed' => '[A-Za-z0-9\.\/\:]+'));
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// PuSH actions
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$m->connect('main/push/hub', array('action' => 'pushhub'));
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$m->connect('main/push/callback/:feed',
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array('action' => 'pushcallback'),
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array('feed' => '[0-9]+'));
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$m->connect('settings/feedsub',
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array('action' => 'feedsubsettings'));
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// Salmon endpoint
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$m->connect('main/salmon/user/:id',
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array('action' => 'usersalmon'),
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array('id' => '[0-9]+'));
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$m->connect('main/salmon/group/:id',
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array('action' => 'groupsalmon'),
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array('id' => '[0-9]+'));
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return true;
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}
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/**
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* Set up queue handlers for outgoing hub pushes
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* @param QueueManager $qm
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* @return boolean hook return
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*/
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function onEndInitializeQueueManager(QueueManager $qm)
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{
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$qm->connect('hubverify', 'HubVerifyQueueHandler');
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$qm->connect('hubdistrib', 'HubDistribQueueHandler');
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$qm->connect('hubout', 'HubOutQueueHandler');
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return true;
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}
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/**
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* Put saved notices into the queue for pubsub distribution.
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*/
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function onStartEnqueueNotice($notice, &$transports)
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{
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$transports[] = 'hubdistrib';
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return true;
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}
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/**
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* Set up a PuSH hub link to our internal link for canonical timeline
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* Atom feeds for users and groups.
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*/
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function onStartApiAtom($feed)
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{
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$id = null;
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if ($feed instanceof AtomUserNoticeFeed) {
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$salmonAction = 'salmon';
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$id = $feed->getUser()->id;
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} else if ($feed instanceof AtomGroupNoticeFeed) {
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$salmonAction = 'salmongroup';
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$id = $feed->getGroup()->id;
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} else {
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return;
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}
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if (!empty($id)) {
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$hub = common_config('ostatus', 'hub');
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if (empty($hub)) {
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// Updates will be handled through our internal PuSH hub.
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$hub = common_local_url('pushhub');
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}
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$feed->addLink($hub, array('rel' => 'hub'));
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// Also, we'll add in the salmon link
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$salmon = common_local_url($salmonAction, array('id' => $id));
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$feed->addLink($salmon, array('rel' => 'salmon'));
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}
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}
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/**
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* Add the feed settings page to the Connect Settings menu
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*
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* @param Action &$action The calling page
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*
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* @return boolean hook return
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*/
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function onEndConnectSettingsNav(&$action)
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{
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$action_name = $action->trimmed('action');
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$action->menuItem(common_local_url('feedsubsettings'),
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_m('Feeds'),
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_m('Feed subscription options'),
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$action_name === 'feedsubsettings');
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return true;
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}
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/**
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* Automatically load the actions and libraries used by the plugin
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*
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* @param Class $cls the class
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*
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* @return boolean hook return
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*
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*/
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function onAutoload($cls)
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{
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$base = dirname(__FILE__);
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$lower = strtolower($cls);
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$map = array('activityverb' => 'activity',
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'activityobject' => 'activity',
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'activityutils' => 'activity');
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if (isset($map[$lower])) {
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$lower = $map[$lower];
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}
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$files = array("$base/classes/$cls.php",
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"$base/lib/$lower.php");
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if (substr($lower, -6) == 'action') {
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$files[] = "$base/actions/" . substr($lower, 0, -6) . ".php";
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}
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foreach ($files as $file) {
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if (file_exists($file)) {
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include_once $file;
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return false;
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}
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}
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return true;
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}
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/**
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* Add in an OStatus subscribe button
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*/
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function onStartProfileRemoteSubscribe($output, $profile)
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{
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$cur = common_current_user();
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if (empty($cur)) {
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// Add an OStatus subscribe
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$output->elementStart('li', 'entity_subscribe');
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$url = common_local_url('ostatusinit',
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array('nickname' => $profile->nickname));
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$output->element('a', array('href' => $url,
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'class' => 'entity_remote_subscribe'),
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_m('Subscribe'));
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$output->elementEnd('li');
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}
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return false;
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}
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/**
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* Check if we've got remote replies to send via Salmon.
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*
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* @fixme push webfinger lookup & sending to a background queue
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* @fixme also detect short-form name for remote subscribees where not ambiguous
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*/
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function onEndNoticeSave($notice)
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{
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$count = preg_match_all('/(\w+\.)*\w+@(\w+\.)*\w+(\w+\-\w+)*\.\w+/', $notice->content, $matches);
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if ($count) {
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foreach ($matches[0] as $webfinger) {
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// FIXME: look up locally first
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// Check to see if we've got an actual webfinger
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$w = new Webfinger;
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$endpoint_uri = '';
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$result = $w->lookup($webfinger);
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if (empty($result)) {
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continue;
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}
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foreach ($result->links as $link) {
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if ($link['rel'] == 'salmon') {
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$endpoint_uri = $link['href'];
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}
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}
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if (empty($endpoint_uri)) {
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continue;
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}
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// FIXME: this needs to go out in a queue handler
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$xml = '<?xml version="1.0" encoding="UTF-8" ?>';
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$xml .= $notice->asAtomEntry();
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$salmon = new Salmon();
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$salmon->post($endpoint_uri, $xml);
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}
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}
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}
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/**
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* Notify remote server and garbage collect unused feeds on unsubscribe.
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* @fixme send these operations to background queues
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*
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* @param User $user
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* @param Profile $other
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* @return hook return value
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*/
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function onEndUnsubscribe($user, $other)
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{
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if ($user instanceof Profile) {
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$profile = $user;
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} else if ($user instanceof Profile) {
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$profile = $user->getProfile();
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}
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$oprofile = Ostatus_profile::staticGet('profile_id', $other->id);
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if ($oprofile) {
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// Notify the remote server of the unsub, if supported.
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$oprofile->notify($profile, ActivityVerb::UNFOLLOW, $oprofile);
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// Drop the PuSH subscription if there are no other subscribers.
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$sub = new Subscription();
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$sub->subscribed = $other->id;
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$sub->limit(1);
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if (!$sub->find(true)) {
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common_log(LOG_INFO, "Unsubscribing from now-unused feed $oprofile->feeduri");
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$oprofile->unsubscribe();
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}
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}
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return true;
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}
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/**
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* Make sure necessary tables are filled out.
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*/
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function onCheckSchema() {
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$schema = Schema::get();
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$schema->ensureTable('ostatus_profile', Ostatus_profile::schemaDef());
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$schema->ensureTable('feedsub', FeedSub::schemaDef());
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$schema->ensureTable('hubsub', HubSub::schemaDef());
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return true;
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}
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function onEndShowStatusNetStyles($action) {
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$action->cssLink(common_path('plugins/OStatus/theme/base/css/ostatus.css'));
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return true;
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}
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function onEndShowStatusNetScripts($action) {
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$action->script(common_path('plugins/OStatus/js/ostatus.js'));
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return true;
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}
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/**
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* Override the "from ostatus" bit in notice lists to link to the
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* original post and show the domain it came from.
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*
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* @param Notice in $notice
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* @param string out &$name
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* @param string out &$url
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* @param string out &$title
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* @return mixed hook return code
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*/
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function onStartNoticeSourceLink($notice, &$name, &$url, &$title)
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{
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if ($notice->source == 'ostatus') {
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$bits = parse_url($notice->uri);
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$domain = $bits['host'];
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$name = $domain;
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$url = $notice->uri;
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$title = sprintf(_m("Sent from %s via OStatus"), $domain);
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return false;
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}
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}
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/**
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* Send incoming PuSH feeds for OStatus endpoints in for processing.
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*
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* @param FeedSub $feedsub
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* @param DOMDocument $feed
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* @return mixed hook return code
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*/
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function onStartFeedSubReceive($feedsub, $feed)
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{
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$oprofile = Ostatus_profile::staticGet('feeduri', $feedsub->uri);
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if ($oprofile) {
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$oprofile->processFeed($feed);
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} else {
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common_log(LOG_DEBUG, "No ostatus profile for incoming feed $feedsub->uri");
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}
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}
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}
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