src/Core/Session.php

   1 <?php
   2
   3 /**
   4  * @file src/Core/Session.php
   5  */
   6 namespace Friendica\Core;
   7
   8 use Friendica\BaseObject;
   9 use Friendica\Core\Session\ISession;
  10 use Friendica\Database\DBA;
  11 use Friendica\Model\Contact;
  12 use Friendica\Util\Strings;
  13
  14 /**
  15  * High-level Session service class
  16  *
  17  * @author Hypolite Petovan <hypolite@mrpetovan.com>
  18  */
  19 class Session extends BaseObject
  20 {
  21         public static $exists = false;
  22         public static $expire = 180000;
  23
  24         public static function exists($name)
  25         {
  26                 return self::getClass(ISession::class)->exists($name);
  27         }
  28
  29         public static function get($name, $defaults = null)
  30         {
  31                 return self::getClass(ISession::class)->get($name, $defaults);
  32         }
  33
  34         public static function set($name, $value)
  35         {
  36                 self::getClass(ISession::class)->set($name, $value);
  37         }
  38
  39         public static function setMultiple(array $values)
  40         {
  41                 self::getClass(ISession::class)->setMultiple($values);
  42         }
  43
  44         public static function remove($name)
  45         {
  46                 self::getClass(ISession::class)->remove($name);
  47         }
  48
  49         public static function clear()
  50         {
  51                 self::getClass(ISession::class)->clear();
  52         }
  53
  54         /**
  55          * Returns contact ID for given user ID
  56          *
  57          * @param integer $uid User ID
  58          * @return integer Contact ID of visitor for given user ID
  59          */
  60         public static function getRemoteContactID($uid)
  61         {
  62                 if (empty($_SESSION['remote'][$uid])) {
  63                         return false;
  64                 }
  65
  66                 return $_SESSION['remote'][$uid];
  67         }
  68
  69         /**
  70          * Returns User ID for given contact ID of the visitor
  71          *
  72          * @param integer $cid Contact ID
  73          * @return integer User ID for given contact ID of the visitor
  74          */
  75         public static function getUserIDForVisitorContactID($cid)
  76         {
  77                 if (empty($_SESSION['remote'])) {
  78                         return false;
  79                 }
  80
  81                 return array_search($cid, $_SESSION['remote']);
  82         }
  83
  84         /**
  85          * Set the session variable that contains the contact IDs for the visitor's contact URL
  86          *
  87          * @param string $url Contact URL
  88          */
  89         public static function setVisitorsContacts()
  90         {
  91                 $_SESSION['remote'] = [];
  92
  93                 $remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($_SESSION['my_url']), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
  94                 while ($contact = DBA::fetch($remote_contacts)) {
  95                         if (($contact['uid'] == 0) || Contact::isBlockedByUser($contact['id'], $contact['uid'])) {
  96                                 continue;
  97                         }
  98
  99                         $_SESSION['remote'][$contact['uid']] = $contact['id'];
 100                 }
 101                 DBA::close($remote_contacts);
 102         }
 103
 104         /**
 105          * Returns if the current visitor is authenticated
 106          *
 107          * @return boolean "true" when visitor is either a local or remote user
 108          */
 109         public static function isAuthenticated()
 110         {
 111                 if (empty($_SESSION['authenticated'])) {
 112                         return false;
 113                 }
 114
 115                 return $_SESSION['authenticated'];
 116         }
 117
 118         public static function delete()
 119         {
 120                 self::getClass(ISession::class)->delete();
 121         }
 122 }