515 lines
17 KiB
PHP
515 lines
17 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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* Show a user's timeline
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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 API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author mac65 <mac65@mac65.com>
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* @author Mike Cochrane <mikec@mikenz.geek.nz>
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* @author Robin Millette <robin@millette.info>
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* @author Zach Copley <zach@status.net>
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* @copyright 2009 StatusNet, Inc.
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* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
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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')) {
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exit(1);
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}
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require_once INSTALLDIR . '/lib/apibareauth.php';
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/**
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* Returns the most recent notices (default 20) posted by the authenticating
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* user. Another user's timeline can be requested via the id parameter. This
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* is the API equivalent of the user profile web page.
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*
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* @category API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author mac65 <mac65@mac65.com>
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* @author Mike Cochrane <mikec@mikenz.geek.nz>
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* @author Robin Millette <robin@millette.info>
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* @author Zach Copley <zach@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 ApiTimelineUserAction extends ApiBareAuthAction
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{
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var $notices = null;
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/**
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* Take arguments for running
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*
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* @param array $args $_REQUEST args
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*
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* @return boolean success flag
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*/
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function prepare($args)
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{
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parent::prepare($args);
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$this->user = $this->getTargetUser($this->arg('id'));
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if (empty($this->user)) {
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// TRANS: Client error displayed requesting most recent notices for a non-existing user.
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$this->clientError(_('No such user.'), 404, $this->format);
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return;
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}
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$this->notices = $this->getNotices();
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return true;
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}
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/**
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* Handle the request
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*
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* Just show the notices
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*
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* @param array $args $_REQUEST data (unused)
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*
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* @return void
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*/
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function handle($args)
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{
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parent::handle($args);
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if ($this->isPost()) {
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$this->handlePost();
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} else {
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$this->showTimeline();
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}
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}
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/**
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* Show the timeline of notices
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*
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* @return void
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*/
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function showTimeline()
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{
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$profile = $this->user->getProfile();
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// We'll use the shared params from the Atom stub
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// for other feed types.
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$atom = new AtomUserNoticeFeed($this->user, $this->auth_user);
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$link = common_local_url(
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'showstream',
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array('nickname' => $this->user->nickname)
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);
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$self = $this->getSelfUri();
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// FriendFeed's SUP protocol
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// Also added RSS and Atom feeds
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$suplink = common_local_url('sup', null, null, $this->user->id);
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header('X-SUP-ID: ' . $suplink);
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switch($this->format) {
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case 'xml':
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$this->showXmlTimeline($this->notices);
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break;
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case 'rss':
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$this->showRssTimeline(
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$this->notices,
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$atom->title,
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$link,
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$atom->subtitle,
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$suplink,
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$atom->logo,
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$self
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);
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break;
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case 'atom':
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header('Content-Type: application/atom+xml; charset=utf-8');
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$atom->setId($self);
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$atom->setSelfLink($self);
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// Add navigation links: next, prev, first
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// Note: we use IDs rather than pages for navigation; page boundaries
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// change too quickly!
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if (!empty($this->next_id)) {
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$nextUrl = common_local_url('ApiTimelineUser',
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array('format' => 'atom',
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'id' => $this->user->id),
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array('max_id' => $this->next_id));
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$atom->addLink($nextUrl,
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array('rel' => 'next',
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'type' => 'application/atom+xml'));
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}
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if (($this->page > 1 || !empty($this->max_id)) && !empty($this->notices)) {
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$lastNotice = $this->notices[0];
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$lastId = $lastNotice->id;
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$prevUrl = common_local_url('ApiTimelineUser',
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array('format' => 'atom',
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'id' => $this->user->id),
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array('since_id' => $lastId));
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$atom->addLink($prevUrl,
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array('rel' => 'prev',
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'type' => 'application/atom+xml'));
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}
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if ($this->page > 1 || !empty($this->since_id) || !empty($this->max_id)) {
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$firstUrl = common_local_url('ApiTimelineUser',
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array('format' => 'atom',
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'id' => $this->user->id));
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$atom->addLink($firstUrl,
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array('rel' => 'first',
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'type' => 'application/atom+xml'));
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}
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$atom->addEntryFromNotices($this->notices);
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$this->raw($atom->getString());
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break;
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case 'json':
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$this->showJsonTimeline($this->notices);
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break;
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case 'as':
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header('Content-Type: ' . ActivityStreamJSONDocument::CONTENT_TYPE);
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$doc = new ActivityStreamJSONDocument($this->auth_user);
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$doc->setTitle($atom->title);
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$doc->addLink($link, 'alternate', 'text/html');
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$doc->addItemsFromNotices($this->notices);
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// XXX: Add paging extension?
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$this->raw($doc->asString());
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break;
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default:
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// TRANS: Client error displayed when coming across a non-supported API method.
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$this->clientError(_('API method not found.'), $code = 404);
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break;
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}
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}
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/**
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* Get notices
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*
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* @return array notices
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*/
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function getNotices()
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{
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$notices = array();
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$notice = $this->user->getNotices(($this->page-1) * $this->count,
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$this->count + 1,
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$this->since_id,
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$this->max_id);
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while ($notice->fetch()) {
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if (count($notices) < $this->count) {
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$notices[] = clone($notice);
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} else {
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$this->next_id = $notice->id;
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break;
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}
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}
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return $notices;
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}
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/**
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* We expose AtomPub here, so non-GET/HEAD reqs must be read/write.
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*
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* @param array $args other arguments
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*
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* @return boolean true
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*/
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function isReadOnly($args)
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{
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return ($_SERVER['REQUEST_METHOD'] == 'GET' || $_SERVER['REQUEST_METHOD'] == 'HEAD');
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}
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/**
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* When was this feed last modified?
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*
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* @return string datestamp of the latest notice in the stream
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*/
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function lastModified()
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{
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if (!empty($this->notices) && (count($this->notices) > 0)) {
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return strtotime($this->notices[0]->created);
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}
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return null;
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}
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/**
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* An entity tag for this stream
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*
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* Returns an Etag based on the action name, language, user ID, and
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* timestamps of the first and last notice in the timeline
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*
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* @return string etag
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*/
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function etag()
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{
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if (!empty($this->notices) && (count($this->notices) > 0)) {
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$last = count($this->notices) - 1;
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return '"' . implode(
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':',
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array($this->arg('action'),
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common_user_cache_hash($this->auth_user),
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common_language(),
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$this->user->id,
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strtotime($this->notices[0]->created),
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strtotime($this->notices[$last]->created))
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)
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. '"';
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}
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return null;
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}
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function handlePost()
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{
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if (empty($this->auth_user) ||
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$this->auth_user->id != $this->user->id) {
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// TRANS: Client error displayed trying to add a notice to another user's timeline.
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$this->clientError(_('Only the user can add to their own timeline.'));
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return;
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}
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// Only handle posts for Atom
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if ($this->format != 'atom') {
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// TRANS: Client error displayed when using another format than AtomPub.
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$this->clientError(_('Only accept AtomPub for Atom feeds.'));
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return;
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}
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$xml = trim(file_get_contents('php://input'));
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if (empty($xml)) {
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// TRANS: Client error displayed attempting to post an empty API notice.
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$this->clientError(_('Atom post must not be empty.'));
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}
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$old = error_reporting(error_reporting() & ~(E_WARNING | E_NOTICE));
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$dom = new DOMDocument();
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$ok = $dom->loadXML($xml);
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error_reporting($old);
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if (!$ok) {
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// TRANS: Client error displayed attempting to post an API that is not well-formed XML.
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$this->clientError(_('Atom post must be well-formed XML.'));
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}
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if ($dom->documentElement->namespaceURI != Activity::ATOM ||
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$dom->documentElement->localName != 'entry') {
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// TRANS: Client error displayed when not using an Atom entry.
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$this->clientError(_('Atom post must be an Atom entry.'));
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return;
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}
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$activity = new Activity($dom->documentElement);
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$saved = null;
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if (Event::handle('StartAtomPubNewActivity', array(&$activity, $this->user, &$saved))) {
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if ($activity->verb != ActivityVerb::POST) {
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// TRANS: Client error displayed when not using the POST verb. Do not translate POST.
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$this->clientError(_('Can only handle POST activities.'));
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return;
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}
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$note = $activity->objects[0];
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if (!in_array($note->type, array(ActivityObject::NOTE,
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ActivityObject::BLOGENTRY,
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ActivityObject::STATUS))) {
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// TRANS: Client error displayed when using an unsupported activity object type.
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// TRANS: %s is the unsupported activity object type.
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$this->clientError(sprintf(_('Cannot handle activity object type "%s".'),
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$note->type));
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return;
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}
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$saved = $this->postNote($activity);
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Event::handle('EndAtomPubNewActivity', array($activity, $this->user, $saved));
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}
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if (!empty($saved)) {
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header('HTTP/1.1 201 Created');
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header("Location: " . common_local_url('ApiStatusesShow', array('id' => $saved->id,
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'format' => 'atom')));
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$this->showSingleAtomStatus($saved);
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}
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}
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function postNote($activity)
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{
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$note = $activity->objects[0];
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// Use summary as fallback for content
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if (!empty($note->content)) {
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$sourceContent = $note->content;
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} else if (!empty($note->summary)) {
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$sourceContent = $note->summary;
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} else if (!empty($note->title)) {
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$sourceContent = $note->title;
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} else {
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// @fixme fetch from $sourceUrl?
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// TRANS: Client error displayed when posting a notice without content through the API.
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// TRANS: %d is the notice ID (number).
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$this->clientError(sprintf(_('No content for notice %d.'),
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$note->id));
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return;
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}
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// Get (safe!) HTML and text versions of the content
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$rendered = $this->purify($sourceContent);
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$content = html_entity_decode(strip_tags($rendered), ENT_QUOTES, 'UTF-8');
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$shortened = $this->auth_user->shortenLinks($content);
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$options = array('is_local' => Notice::LOCAL_PUBLIC,
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'rendered' => $rendered,
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'replies' => array(),
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'groups' => array(),
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'tags' => array(),
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'urls' => array());
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// accept remote URI (not necessarily a good idea)
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common_debug("Note ID is {$note->id}");
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if (!empty($note->id)) {
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$notice = Notice::staticGet('uri', trim($note->id));
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if (!empty($notice)) {
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// TRANS: Client error displayed when using another format than AtomPub.
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// TRANS: %s is the notice URI.
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$this->clientError(sprintf(_('Notice with URI "%s" already exists.'),
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$note->id));
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return;
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}
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common_log(LOG_NOTICE, "Saving client-supplied notice URI '$note->id'");
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$options['uri'] = $note->id;
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}
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// accept remote create time (also maybe not such a good idea)
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if (!empty($activity->time)) {
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common_log(LOG_NOTICE, "Saving client-supplied create time {$activity->time}");
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$options['created'] = common_sql_date($activity->time);
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}
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// Check for optional attributes...
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if (!empty($activity->context)) {
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foreach ($activity->context->attention as $uri) {
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$profile = Profile::fromURI($uri);
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if (!empty($profile)) {
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$options['replies'][] = $uri;
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} else {
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$group = User_group::staticGet('uri', $uri);
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if (!empty($group)) {
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$options['groups'][] = $group->id;
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} else {
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// @fixme: hook for discovery here
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common_log(LOG_WARNING, sprintf('AtomPub post with unknown attention URI %s', $uri));
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}
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}
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}
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// Maintain direct reply associations
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// @fixme what about conversation ID?
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if (!empty($activity->context->replyToID)) {
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$orig = Notice::staticGet('uri',
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$activity->context->replyToID);
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if (!empty($orig)) {
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$options['reply_to'] = $orig->id;
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}
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}
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$location = $activity->context->location;
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if ($location) {
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$options['lat'] = $location->lat;
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$options['lon'] = $location->lon;
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if ($location->location_id) {
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$options['location_ns'] = $location->location_ns;
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$options['location_id'] = $location->location_id;
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}
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}
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}
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// Atom categories <-> hashtags
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foreach ($activity->categories as $cat) {
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if ($cat->term) {
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$term = common_canonical_tag($cat->term);
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if ($term) {
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$options['tags'][] = $term;
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}
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}
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}
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// Atom enclosures -> attachment URLs
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foreach ($activity->enclosures as $href) {
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// @fixme save these locally or....?
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$options['urls'][] = $href;
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}
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$saved = Notice::saveNew($this->user->id,
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$content,
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'atompub', // TODO: deal with this
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$options);
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return $saved;
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}
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function purify($content)
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{
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require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
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$config = array('safe' => 1,
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'deny_attribute' => 'id,style,on*');
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return htmLawed($content, $config);
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}
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}
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