src/Model/Queue.php

   1 <?php
   2 /**
   3  * @file src/Model/Queue.php
   4  */
   5 namespace Friendica\Model;
   6
   7 use Friendica\Core\Config;
   8 use Friendica\Database\DBM;
   9 use Friendica\Util\DateTimeFormat;
  10 use dba;
  11
  12 require_once 'include/dba.php';
  13 require_once 'include/datetime.php';
  14
  15 class Queue
  16 {
  17         /**
  18          * @param string $id id
  19          */
  20         public static function updateTime($id)
  21         {
  22                 logger('queue: requeue item ' . $id);
  23                 dba::update('queue', ['last' => DateTimeFormat::utcNow()], ['id' => $id]);
  24         }
  25
  26         /**
  27          * @param string $id id
  28          */
  29         public static function removeItem($id)
  30         {
  31                 logger('queue: remove queue item ' . $id);
  32                 dba::delete('queue', ['id' => $id]);
  33         }
  34
  35         /**
  36          * @brief Checks if the communication with a given contact had problems recently
  37          *
  38          * @param int $cid Contact id
  39          *
  40          * @return bool The communication with this contact has currently problems
  41          */
  42         public static function wasDelayed($cid)
  43         {
  44                 // Are there queue entries that were recently added?
  45                 $r = q("SELECT `id` FROM `queue` WHERE `cid` = %d
  46                         AND `last` > UTC_TIMESTAMP() - INTERVAL 15 MINUTE LIMIT 1",
  47                         intval($cid)
  48                 );
  49
  50                 $was_delayed = DBM::is_result($r);
  51
  52                 // We set "term-date" to a current date if the communication has problems.
  53                 // If the communication works again we reset this value.
  54                 if ($was_delayed) {
  55                         $r = q("SELECT `term-date` FROM `contact` WHERE `id` = %d AND `term-date` <= '1000-01-01' LIMIT 1",
  56                                 intval($cid)
  57                         );
  58                         $was_delayed = !DBM::is_result($r);
  59                 }
  60
  61                 return $was_delayed;
  62         }
  63
  64         /**
  65          * @param string  $cid     cid
  66          * @param string  $network network
  67          * @param string  $msg     message
  68          * @param boolean $batch   batch, default false
  69          */
  70         public static function add($cid, $network, $msg, $batch = false)
  71         {
  72
  73                 $max_queue = Config::get('system', 'max_contact_queue');
  74                 if ($max_queue < 1) {
  75                         $max_queue = 500;
  76                 }
  77
  78                 $batch_queue = Config::get('system', 'max_batch_queue');
  79                 if ($batch_queue < 1) {
  80                         $batch_queue = 1000;
  81                 }
  82
  83                 $r = q("SELECT COUNT(*) AS `total` FROM `queue` INNER JOIN `contact` ON `queue`.`cid` = `contact`.`id`
  84                         WHERE `queue`.`cid` = %d AND `contact`.`self` = 0 ",
  85                         intval($cid)
  86                 );
  87
  88                 if (DBM::is_result($r)) {
  89                         if ($batch &&  ($r[0]['total'] > $batch_queue)) {
  90                                 logger('add_to_queue: too many queued items for batch server ' . $cid . ' - discarding message');
  91                                 return;
  92                         } elseif ((! $batch) && ($r[0]['total'] > $max_queue)) {
  93                                 logger('add_to_queue: too many queued items for contact ' . $cid . ' - discarding message');
  94                                 return;
  95                         }
  96                 }
  97
  98                 dba::insert('queue', [
  99                         'cid'     => $cid,
 100                         'network' => $network,
 101                         'created' => DateTimeFormat::utcNow(),
 102                         'last'    => DateTimeFormat::utcNow(),
 103                         'content' => $msg,
 104                         'batch'   =>($batch) ? 1 : 0
 105                 ]);
 106         }
 107 }