Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* @see https://github.com/web-push-libs/web-push-php
* Possibly we should simply use this.
*/
namespace Friendica\Model;
use Friendica\Core\Logger;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Util\Crypto;
class Subscription
{
/**
* Select a subscription record exists
*
* @param int $applicationid
* @param int $uid
* @param array $fields
*
* @return bool Does it exist?
*/
public static function select(int $applicationid, int $uid, array $fields = [])
{
return DBA::selectFirst('subscription', $fields, ['application-id' => $applicationid, 'uid' => $uid]);
}
/**
* Check if a subscription record exists
*
* @param int $applicationid
* @param int $uid
*
* @return bool Does it exist?
*/
public static function exists(int $applicationid, int $uid)
{
return DBA::exists('subscription', ['application-id' => $applicationid, 'uid' => $uid]);
}
/**
* Update a subscription record
*
* @param int $applicationid
* @param int $uid
* @param array $fields subscription fields
*
* @return bool result of update
*/
public static function update(int $applicationid, int $uid, array $fields)
{
return DBA::update('subscription', $fields, ['application-id' => $applicationid, 'uid' => $uid]);
}
/**
* Insert or replace a subscription record
*
* @param array $fields subscription fields
*
* @return bool result of replace
*/
public static function replace(array $fields)
{
return DBA::replace('subscription', $fields);
}
/**
* Delete a subscription record
*
* @param int $applicationid
* @param int $uid
* @return bool
*/
public static function delete(int $applicationid, int $uid)
{
return DBA::delete('subscription', ['application-id' => $applicationid, 'uid' => $uid]);
}
/**
* Fetch a VAPID key
*
* @return string
*/
public static function getVapidKey(): string
{
$keypair = DI::config()->get('system', 'ec_keypair');
if (empty($keypair)) {
$keypair = Crypto::newECKeypair();
DI::config()->set('system', 'ec_keypair', $keypair);
}
return $keypair['vapid-public'];
}
/**
* Prepare push notification
*
* @param int $nid
* @return void
*/
public static function pushByNotificationId(int $nid)
{
$notification = DBA::selectFirst('notification', [], ['id' => $nid]);
$type = Notification::getType($notification);
if (empty($type)) {
return;
}
$subscriptions = DBA::select('subscription', [], ['uid' => $notification['uid'], $type => true]);
while ($subscription = DBA::fetch($subscriptions)) {
Logger::info('Push notification', ['id' => $subscription['id'], 'uid' => $subscription['uid'], 'type' => $type]);
Worker::add(PRIORITY_HIGH, 'PushSubscription', $subscription['id']);
}
DBA::close($subscriptions);
}
}