forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			89 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			89 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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 * StatusNet - the distributed open-source microblogging tool
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 * Copyright (C) 2008, 2009, StatusNet, Inc.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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class SupAction extends Action
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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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        $seconds = $this->trimmed('seconds');
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        if (!$seconds) {
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            $seconds = 15;
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        }
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        $updates = $this->getUpdates($seconds);
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        header('Content-Type: application/json; charset=utf-8');
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        print json_encode(array('updated_time' => date('c'),
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                                'since_time' => date('c', time() - $seconds),
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                                'available_periods' => $this->availablePeriods(),
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                                'period' => $seconds,
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                                'updates' => $updates));
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    }
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    function availablePeriods()
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    {
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        static $periods = array(86400, 43200, 21600, 7200,
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                                3600, 1800, 600, 300, 120,
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                                60, 30, 15);
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        $available = array();
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        foreach ($periods as $period) {
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            $available[$period] = common_local_url('sup',
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                                                   array('seconds' => $period));
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        }
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        return $available;
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    }
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    function getUpdates($seconds)
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    {
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        $notice = new Notice();
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        # XXX: cache this. Depends on how big this protocol becomes;
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        # Re-doing this query every 15 seconds isn't the end of the world.
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        $divider = common_sql_date(time() - $seconds);
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        $notice->query('SELECT profile_id, max(id) AS max_id ' .
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                       'FROM notice ' .
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                        ((common_config('db','type') == 'pgsql') ?
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                       'WHERE extract(epoch from created) > (extract(epoch from now()) - ' . $seconds . ') ' :
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                       'WHERE created > "'.$divider.'" ' ) .
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                       'GROUP BY profile_id');
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        $updates = array();
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        while ($notice->fetch()) {
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            $updates[] = array($notice->profile_id, $notice->max_id);
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        }
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        return $updates;
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    }
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    function isReadOnly($args)
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    {
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        return true;
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    }
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}
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