472 lines
13 KiB
PHP
472 lines
13 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Superclass for plugins that do "real time" updates of timelines using Ajax
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*
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* PHP version 5
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*
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* LICENCE: 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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* @category Plugin
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
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}
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/**
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* Superclass for plugin to do realtime updates
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*
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* Based on experience with the Comet and Meteor plugins,
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* this superclass extracts out some of the common functionality
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*
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* @category Plugin
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class RealtimePlugin extends Plugin
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{
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protected $showurl = null;
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/**
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* When it's time to initialize the plugin, calculate and
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* pass the URLs we need.
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*/
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function onInitializePlugin()
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{
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// FIXME: need to find a better way to pass this pattern in
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$this->showurl = common_local_url('shownotice',
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array('notice' => '0000000000'));
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return true;
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}
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function onCheckSchema()
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{
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$schema = Schema::get();
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$schema->ensureTable('realtime_channel', Realtime_channel::schemaDef());
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return true;
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}
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function onAutoload($cls)
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{
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$dir = dirname(__FILE__);
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switch ($cls)
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{
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case 'Realtime_channel':
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include_once $dir.'/'.$cls.'.php';
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return false;
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default:
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return true;
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}
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}
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function onEndShowScripts($action)
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{
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$timeline = $this->_getTimeline($action);
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// If there's not a timeline on this page,
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// just return true
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if (empty($timeline)) {
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return true;
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}
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$base = $action->selfUrl();
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if (mb_strstr($base, '?')) {
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$url = $base . '&realtime=1';
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} else {
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$url = $base . '?realtime=1';
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}
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$scripts = $this->_getScripts();
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foreach ($scripts as $script) {
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$action->script($script);
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}
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$user = common_current_user();
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if (!empty($user->id)) {
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$user_id = $user->id;
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} else {
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$user_id = 0;
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}
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if ($action->boolean('realtime')) {
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$realtimeUI = ' RealtimeUpdate.initPopupWindow();';
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}
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else {
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$pluginPath = common_path('plugins/Realtime/');
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$realtimeUI = ' RealtimeUpdate.initActions("'.$url.'", "'.$timeline.'", "'. $pluginPath .'");';
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}
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$script = ' $(document).ready(function() { '.
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$realtimeUI.
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$this->_updateInitialize($timeline, $user_id).
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'}); ';
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$action->inlineScript($script);
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return true;
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}
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function onEndShowStatusNetStyles($action)
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{
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$action->cssLink(Plugin::staticPath('Realtime', 'realtimeupdate.css'),
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null,
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'screen, projection, tv');
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return true;
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}
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function onHandleQueuedNotice($notice)
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{
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$paths = array();
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// Add to the author's timeline
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$user = User::staticGet('id', $notice->profile_id);
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if (!empty($user)) {
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$paths[] = array('showstream', $user->nickname, null);
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}
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// Add to the public timeline
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if ($notice->is_local == Notice::LOCAL_PUBLIC ||
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($notice->is_local == Notice::REMOTE_OMB && !common_config('public', 'localonly'))) {
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$paths[] = array('public', null, null);
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}
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// Add to the tags timeline
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$tags = $this->getNoticeTags($notice);
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if (!empty($tags)) {
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foreach ($tags as $tag) {
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$paths[] = array('tag', $tag, null);
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}
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}
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// Add to inbox timelines
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// XXX: do a join
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$ni = $notice->whoGets();
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foreach (array_keys($ni) as $user_id) {
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$user = User::staticGet('id', $user_id);
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$paths[] = array('all', $user->nickname, null);
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}
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// Add to the replies timeline
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$reply = new Reply();
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$reply->notice_id = $notice->id;
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if ($reply->find()) {
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while ($reply->fetch()) {
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$user = User::staticGet('id', $reply->profile_id);
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if (!empty($user)) {
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$paths[] = array('replies', $user->nickname, null);
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}
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}
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}
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// Add to the group timeline
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// XXX: join
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$gi = new Group_inbox();
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$gi->notice_id = $notice->id;
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if ($gi->find()) {
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while ($gi->fetch()) {
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$ug = User_group::staticGet('id', $gi->group_id);
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$paths[] = array('showgroup', $ug->nickname, null);
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}
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}
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if (count($paths) > 0) {
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$json = $this->noticeAsJson($notice);
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$this->_connect();
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// XXX: We should probably fan-out here and do a
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// new queue item for each path
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foreach ($paths as $path) {
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list($action, $arg1, $arg2) = $path;
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$channels = Realtime_channel::getAllChannels($action, $arg1, $arg2);
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foreach ($channels as $channel) {
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// XXX: We should probably fan-out here and do a
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// new queue item for each user/path combo
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if (is_null($channel->user_id)) {
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$profile = null;
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} else {
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$profile = Profile::staticGet('id', $channel->user_id);
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}
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if ($notice->inScope($profile)) {
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$timeline = $this->_pathToChannel(array($channel->channel_key));
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$this->_publish($timeline, $json);
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}
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}
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}
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$this->_disconnect();
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}
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return true;
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}
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function onStartShowBody($action)
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{
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$realtime = $action->boolean('realtime');
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if (!$realtime) {
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return true;
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}
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$action->elementStart('body',
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(common_current_user()) ? array('id' => $action->trimmed('action'),
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'class' => 'user_in realtime-popup')
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: array('id' => $action->trimmed('action'),
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'class'=> 'realtime-popup'));
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// XXX hack to deal with JS that tries to get the
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// root url from page output
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$action->elementStart('address');
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$action->element('a', array('class' => 'url',
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'href' => common_local_url('public')),
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'');
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$action->elementEnd('address');
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$action->showContentBlock();
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$action->showScripts();
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$action->elementEnd('body');
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return false; // No default processing
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}
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function noticeAsJson($notice)
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{
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// FIXME: this code should be abstracted to a neutral third
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// party, like Notice::asJson(). I'm not sure of the ethics
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// of refactoring from within a plugin, so I'm just abusing
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// the ApiAction method. Don't do this unless you're me!
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$act = new ApiAction('/dev/null');
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$arr = $act->twitterStatusArray($notice, true);
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$arr['url'] = $notice->bestUrl();
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$arr['html'] = htmlspecialchars($notice->rendered);
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$arr['source'] = htmlspecialchars($arr['source']);
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$arr['conversation_url'] = $this->getConversationUrl($notice);
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$profile = $notice->getProfile();
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$arr['user']['profile_url'] = $profile->profileurl;
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// Add needed repeat data
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if (!empty($notice->repeat_of)) {
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$original = Notice::staticGet('id', $notice->repeat_of);
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if (!empty($original)) {
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$arr['retweeted_status']['url'] = $original->bestUrl();
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$arr['retweeted_status']['html'] = htmlspecialchars($original->rendered);
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$arr['retweeted_status']['source'] = htmlspecialchars($original->source);
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$originalProfile = $original->getProfile();
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$arr['retweeted_status']['user']['profile_url'] = $originalProfile->profileurl;
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$arr['retweeted_status']['conversation_url'] = $this->getConversationUrl($original);
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}
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$original = null;
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}
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return $arr;
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}
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function getNoticeTags($notice)
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{
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$tags = null;
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$nt = new Notice_tag();
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$nt->notice_id = $notice->id;
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if ($nt->find()) {
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$tags = array();
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while ($nt->fetch()) {
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$tags[] = $nt->tag;
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}
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}
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$nt->free();
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$nt = null;
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return $tags;
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}
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function getConversationUrl($notice)
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{
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$convurl = null;
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if ($notice->hasConversation()) {
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$conv = Conversation::staticGet(
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'id',
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$notice->conversation
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);
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$convurl = $conv->uri;
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if(empty($convurl)) {
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$msg = sprintf(
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"Couldn't find Conversation ID %d to make 'in context'"
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. "link for Notice ID %d",
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$notice->conversation,
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$notice->id
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);
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common_log(LOG_WARNING, $msg);
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} else {
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$convurl .= '#notice-' . $notice->id;
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}
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}
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return $convurl;
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}
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function _getScripts()
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{
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if (common_config('site', 'minify')) {
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$js = 'realtimeupdate.min.js';
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} else {
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$js = 'realtimeupdate.js';
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}
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return array(Plugin::staticPath('Realtime', $js));
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}
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/**
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* Export any i18n messages that need to be loaded at runtime...
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*
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* @param Action $action
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* @param array $messages
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*
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* @return boolean hook return value
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*/
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function onEndScriptMessages($action, &$messages)
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{
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// TRANS: Text label for realtime view "play" button, usually replaced by an icon.
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$messages['realtime_play'] = _m('BUTTON', 'Play');
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// TRANS: Tooltip for realtime view "play" button.
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$messages['realtime_play_tooltip'] = _m('TOOLTIP', 'Play');
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// TRANS: Text label for realtime view "pause" button
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$messages['realtime_pause'] = _m('BUTTON', 'Pause');
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// TRANS: Tooltip for realtime view "pause" button
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$messages['realtime_pause_tooltip'] = _m('TOOLTIP', 'Pause');
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// TRANS: Text label for realtime view "popup" button, usually replaced by an icon.
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$messages['realtime_popup'] = _m('BUTTON', 'Pop up');
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// TRANS: Tooltip for realtime view "popup" button.
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$messages['realtime_popup_tooltip'] = _m('TOOLTIP', 'Pop up in a window');
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return true;
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}
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function _updateInitialize($timeline, $user_id)
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{
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return "RealtimeUpdate.init($user_id, \"$this->showurl\"); ";
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}
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function _connect()
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{
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}
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function _publish($timeline, $json)
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{
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}
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function _disconnect()
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{
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}
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function _pathToChannel($path)
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{
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return '';
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}
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function _getTimeline($action)
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{
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$timeline = null;
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$arg1 = null;
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$arg2 = null;
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$action_name = $action->trimmed('action');
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// FIXME: lists
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// FIXME: search (!)
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// FIXME: profile + tag
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switch ($action_name) {
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case 'public':
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// no arguments
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break;
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case 'tag':
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$tag = $action->trimmed('tag');
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if (empty($tag)) {
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$arg1 = $tag;
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} else {
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$this->log(LOG_NOTICE, "Unexpected 'tag' action without tag argument");
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return null;
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}
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break;
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case 'showstream':
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case 'all':
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case 'replies':
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case 'showgroup':
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$nickname = common_canonical_nickname($action->trimmed('nickname'));
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if (!empty($nickname)) {
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$arg1 = $nickname;
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} else {
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$this->log(LOG_NOTICE, "Unexpected $action_name action without nickname argument.");
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return null;
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}
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break;
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default:
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return null;
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}
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$user = common_current_user();
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$user_id = (!empty($user)) ? $user->id : null;
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$channel = Realtime_channel::getChannel($user_id,
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$action_name,
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$arg1,
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$arg2);
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if (!empty($channel)) {
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$timeline = $this->_pathToChannel(array($channel->channel_key));
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}
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return $timeline;
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}
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}
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