forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			382 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			382 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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|  * 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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| 
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| if (!defined('GNUSOCIAL')) { exit(1); }
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| 
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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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|     var $next_id = null;
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| 
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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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|     protected function prepare(array $args=array())
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|     {
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|         parent::prepare($args);
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| 
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|         $this->target = $this->getTargetProfile($this->arg('id'));
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| 
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|         if (!($this->target instanceof Profile)) {
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|             // TRANS: Client error displayed requesting most recent notices for a non-existing user.
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|             $this->clientError(_('No such user.'), 404);
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|         }
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| 
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|         if (!$this->target->isLocal()) {
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|             $this->serverError(_('Remote user timelines are not available here yet.'), 501);
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|         }
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| 
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|         $this->notices = $this->getNotices();
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Handle the request
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|      *
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|      * Just show the notices
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|      *
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|      * @return void
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|      */
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|     protected function handle()
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|     {
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|         parent::handle();
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| 
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|         if ($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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|     /**
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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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|         // 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->target->getUser(), $this->scoped);
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| 
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|         $link = common_local_url(
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|                                  'showstream',
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|                                  array('nickname' => $this->target->getNickname())
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|                                  );
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| 
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|         $self = $this->getSelfUri();
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| 
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|         // FriendFeed's SUP protocol
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|         // Also added RSS and Atom feeds
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| 
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|         $suplink = common_local_url('sup', null, null, $this->target->getID());
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|         header('X-SUP-ID: ' . $suplink);
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| 
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| 
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|         // paging links
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|         $nextUrl = !empty($this->next_id)
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|                     ? common_local_url('ApiTimelineUser',
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|                                     array('format' => $this->format,
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|                                           'id' => $this->target->getID()),
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|                                     array('max_id' => $this->next_id))
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|                     : null;
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| 
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|         $prevExtra = array();
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|         if (!empty($this->notices)) {
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|             assert($this->notices[0] instanceof Notice);
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|             $prevExtra['since_id'] = $this->notices[0]->id;
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|         }
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| 
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|         $prevUrl = common_local_url('ApiTimelineUser',
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|                                     array('format' => $this->format,
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|                                           'id' => $this->target->getID()),
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|                                     $prevExtra);
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|         $firstUrl = common_local_url('ApiTimelineUser',
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|                                     array('format' => $this->format,
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|                                           'id' => $this->target->getID()));
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| 
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|         switch($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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| 
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|             $atom->setId($self);
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|             $atom->setSelfLink($self);
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| 
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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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| 
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|             if (!empty($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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| 
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|             if (($this->page > 1 || !empty($this->max_id)) && !empty($this->notices)) {
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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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| 
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|             if ($this->page > 1 || !empty($this->since_id) || !empty($this->max_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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|             }
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| 
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|             $atom->addEntryFromNotices($this->notices);
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|             $this->raw($atom->getString());
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| 
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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->scoped);
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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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| 
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|             if (!empty($this->next_id)) {
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|                 $doc->addLink($nextUrl,
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|                                array('rel' => 'next',
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|                                      'type' => ActivityStreamJSONDocument::CONTENT_TYPE));
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|             }
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| 
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|             if (($this->page > 1 || !empty($this->max_id)) && !empty($this->notices)) {
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|                 $doc->addLink($prevUrl,
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|                                array('rel' => 'prev',
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|                                      'type' => ActivityStreamJSONDocument::CONTENT_TYPE));
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|             }
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| 
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|             if ($this->page > 1 || !empty($this->since_id) || !empty($this->max_id)) {
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|                 $doc->addLink($firstUrl,
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|                                array('rel' => 'first',
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|                                      'type' => ActivityStreamJSONDocument::CONTENT_TYPE));
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|             }
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| 
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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.'), 404);
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|         }
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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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| 
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|         $notice = $this->target->getNotices(($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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|                                           $this->scoped);
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| 
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|         while ($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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| 
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|         return $notices;
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|     }
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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 $args other arguments
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|      *
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|      * @return boolean true
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|      */
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| 
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|     function isReadOnly($args)
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|     {
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|         return ($_SERVER['REQUEST_METHOD'] == 'GET' || $_SERVER['REQUEST_METHOD'] == 'HEAD');
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|     }
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| 
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|     /**
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|      * When was this feed last modified?
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|      *
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|      * @return string datestamp of the latest notice in the stream
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|      */
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|     function lastModified()
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|     {
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|         if (!empty($this->notices) && (count($this->notices) > 0)) {
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|             return strtotime($this->notices[0]->created);
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|         }
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| 
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|         return null;
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|     }
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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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| 
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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->scoped),
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|                                        common_language(),
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|                                        $this->target->getID(),
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|                                        strtotime($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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| 
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|         return null;
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|     }
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| 
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|     function handlePost()
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|     {
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|         if (!$this->scoped instanceof Profile ||
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|                 !$this->target->sameAs($this->scoped)) {
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|             // TRANS: Client error displayed trying to add a notice to another user's timeline.
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|             $this->clientError(_('Only the user can add to their own timeline.'), 403);
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|         }
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| 
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|         // Only handle posts for Atom
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|         if ($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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|         }
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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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| 
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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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|             $this->clientError(_('Atom post must be well-formed XML.'));
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|         }
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| 
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|         if ($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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|         }
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| 
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|         $activity = new Activity($dom->documentElement);
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| 
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|         common_debug('AtomPub: Ignoring right now, but this POST was made to collection: '.$activity->id);
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| 
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|         // Reset activity data so we can handle it in the same functions as with OStatus
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|         // because we don't let clients set their own UUIDs... Not sure what AtomPub thinks
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|         // about that though.
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|         $activity->id = null;
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|         $activity->actor = null;    // not used anyway, we use $this->target
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|         $activity->objects[0]->id = null;
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| 
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|         $stored = null;
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|         if (Event::handle('StartAtomPubNewActivity', array($activity, $this->target, &$stored))) {
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|             // TRANS: Client error displayed when not using the POST verb. Do not translate POST.
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|             throw new ClientException(_('Could not handle this Atom Activity.'));
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|         }
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|         if (!$stored instanceof Notice) {
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|             throw new ServerException('Server did not create a Notice object from handled AtomPub activity.');
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|         }
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|         Event::handle('EndAtomPubNewActivity', array($activity, $this->target, $stored));
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| 
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|         header('HTTP/1.1 201 Created');
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|         header("Location: " . common_local_url('ApiStatusesShow', array('id' => $stored->getID(),
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|                                                                         'format' => 'atom')));
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|         $this->showSingleAtomStatus($stored);
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|     }
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| }
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