friendica/src/Core/Session.php

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<?php
/**
* @file src/Core/Session.php
*/
namespace Friendica\Core;
use Friendica\Database\DBA;
use Friendica\DI;
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use Friendica\Model\Contact;
use Friendica\Util\Strings;
/**
* High-level Session service class
*
* @author Hypolite Petovan <hypolite@mrpetovan.com>
*/
class Session
{
public static $exists = false;
public static $expire = 180000;
public static function exists($name)
{
return DI::session()->exists($name);
}
public static function get($name, $defaults = null)
{
return DI::session()->get($name, $defaults);
}
public static function set($name, $value)
{
DI::session()->set($name, $value);
}
public static function setMultiple(array $values)
{
DI::session()->setMultiple($values);
}
public static function remove($name)
{
DI::session()->remove($name);
}
public static function clear()
{
DI::session()->clear();
}
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/**
* Returns contact ID for given user ID
*
* @param integer $uid User ID
* @return integer Contact ID of visitor for given user ID
*/
public static function getRemoteContactID($uid)
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{
$session = DI::session();
if (empty($session->get('remote')[$uid])) {
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return false;
}
return $session->get('remote')[$uid];
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}
/**
* Returns User ID for given contact ID of the visitor
*
* @param integer $cid Contact ID
* @return integer User ID for given contact ID of the visitor
*/
public static function getUserIDForVisitorContactID($cid)
{
$session = DI::session();
if (empty($session->get('remote'))) {
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return false;
}
return array_search($cid, $session->get('remote'));
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}
/**
* Set the session variable that contains the contact IDs for the visitor's contact URL
*
* @param string $url Contact URL
*/
public static function setVisitorsContacts()
{
$session = DI::session();
$session->set('remote', []);
$remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($session->get('my_url')), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
while ($contact = DBA::fetch($remote_contacts)) {
if (($contact['uid'] == 0) || Contact::isBlockedByUser($contact['id'], $contact['uid'])) {
continue;
}
$session->set('remote', [$contact['uid'] => $contact['id']]);
}
DBA::close($remote_contacts);
}
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/**
* Returns if the current visitor is authenticated
*
* @return boolean "true" when visitor is either a local or remote user
*/
public static function isAuthenticated()
{
$session = DI::session();
return $session->get('authenticated', false);
}
}