gnu-social/actions/sup.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
defined('GNUSOCIAL') || die();
// @todo FIXME: documentation needed.
class SupAction extends Action
{
public function handle()
{
parent::handle();
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$seconds = $this->trimmed('seconds');
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if (!$seconds) {
$seconds = 15;
}
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$updates = $this->getUpdates($seconds);
header('Content-Type: application/json; charset=utf-8');
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print json_encode(array('updated_time' => date('c'),
'since_time' => date('c', time() - $seconds),
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'available_periods' => $this->availablePeriods(),
'period' => $seconds,
'updates' => $updates));
}
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public function availablePeriods()
{
static $periods = array(86400, 43200, 21600, 7200,
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3600, 1800, 600, 300, 120,
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60, 30, 15);
$available = array();
foreach ($periods as $period) {
$available[$period] = common_local_url(
'sup',
['seconds' => $period]
);
}
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return $available;
}
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public function getUpdates($seconds)
{
$notice = new Notice();
// XXX: cache this. Depends on how big this protocol becomes;
// Re-doing this query every 15 seconds isn't the end of the world.
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$divider = common_sql_date(time() - $seconds);
$notice->selectAdd();
$notice->selectAdd('profile_id, MAX(id) AS max_id');
$notice->whereAdd("created > TIMESTAMP '{$divider}'");
$notice->groupBy('profile_id');
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$updates = [];
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if ($notice->find()) {
while ($notice->fetch()) {
$updates[] = [$notice->profile_id, $notice->max_id];
}
}
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return $updates;
}
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public function isReadOnly($args)
{
return true;
}
}