367 lines
9.7 KiB
PHP
367 lines
9.7 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 $replyurl = null;
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protected $favorurl = null;
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protected $deleteurl = null;
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/**
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* When it's time to initialize the plugin, calculate and
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* pass the URLs we need.
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*/
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function onInitializePlugin()
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{
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$this->replyurl = common_local_url('newnotice');
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$this->favorurl = common_local_url('favor');
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// FIXME: need to find a better way to pass this pattern in
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$this->deleteurl = common_local_url('deletenotice',
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array('notice' => '0000000000'));
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return true;
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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.'", "'. $pluginPath .'");';
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}
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$action->elementStart('script', array('type' => 'text/javascript'));
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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->raw($script);
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$action->elementEnd('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(common_path('plugins/Realtime/realtimeupdate.css'),
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null, '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', $user->nickname);
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}
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// Add to the public timeline
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if ($notice->is_local ||
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($notice->is_local == 0 && !common_config('public', 'localonly'))) {
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$paths[] = array('public');
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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', $tag);
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}
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}
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// Add to inbox timelines
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// XXX: do a join
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$inbox = new Notice_inbox();
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$inbox->notice_id = $notice->id;
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if ($inbox->find()) {
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while ($inbox->fetch()) {
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$user = User::staticGet('id', $inbox->user_id);
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$paths[] = array('all', $user->nickname);
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}
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}
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// Add to the replies timeline
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$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', $user->nickname);
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}
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}
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}
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// Add to the group timeline
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// XXX: join
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$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', $ug->nickname);
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}
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}
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if (count($paths) > 0) {
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$json = $this->noticeAsJson($notice);
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$this->_connect();
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foreach ($paths as $path) {
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$timeline = $this->_pathToChannel($path);
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$this->_publish($timeline, $json);
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}
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$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')
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: array('id' => $action->trimmed('action')));
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// XXX hack to deal with JS that tries to get the
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// root url from page output
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$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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if (common_logged_in()) {
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$action->showNoticeForm();
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}
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$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($notice)
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{
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// FIXME: this code should be abstracted to a neutral third
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// party, like Notice::asJson(). I'm not sure of the ethics
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// of refactoring from within a plugin, so I'm just abusing
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// the ApiAction method. Don't do this unless you're me!
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require_once(INSTALLDIR.'/lib/api.php');
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$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($arr['source']);
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if (!empty($notice->reply_to)) {
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$reply_to = Notice::staticGet('id', $notice->reply_to);
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if (!empty($reply_to)) {
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$arr['in_reply_to_status_url'] = $reply_to->bestUrl();
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}
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$reply_to = null;
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}
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$profile = $notice->getProfile();
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$arr['user']['profile_url'] = $profile->profileurl;
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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 $tags;
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}
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// Push this up to Plugin
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function log($level, $msg)
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{
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common_log($level, get_class($this) . ': '.$msg);
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}
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function _getScripts()
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{
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return array('plugins/Realtime/realtimeupdate.js',
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'plugins/Realtime/json2.js');
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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, \"$this->replyurl\", \"$this->favorurl\", \"$this->deleteurl\"); ";
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}
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function _connect()
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{
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}
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function _publish($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($action)
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{
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$path = null;
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$timeline = null;
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$action_name = $action->trimmed('action');
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switch ($action_name) {
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case 'public':
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$path = array('public');
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break;
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case 'tag':
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$tag = $action->trimmed('tag');
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if (!empty($tag)) {
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$path = array('tag', $tag);
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}
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break;
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case 'showstream':
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case 'all':
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case 'replies':
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case 'showgroup':
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$nickname = common_canonical_nickname($action->trimmed('nickname'));
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if (!empty($nickname)) {
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$path = array($action_name, $nickname);
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}
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break;
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default:
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break;
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}
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if (!empty($path)) {
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$timeline = $this->_pathToChannel($path);
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}
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return $timeline;
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}
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}
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