include/pubsubpublish.php

   1 <?php
   2 require_once("boot.php");
   3 require_once("include/ostatus.php");
   4
   5 use \Friendica\Core\Config;
   6 use \Friendica\Core\PConfig;
   7
   8 function handle_pubsubhubbub($id) {
   9         global $a, $db;
  10
  11         $r = q("SELECT * FROM `push_subscriber` WHERE `id` = %d", intval($id));
  12         if (!$r)
  13                 return;
  14         else
  15                 $rr = $r[0];
  16
  17         logger("Generate feed of user ".$rr['nickname']." to ".$rr['callback_url']." - last updated ".$rr['last_update'], LOGGER_DEBUG);
  18
  19         $params = ostatus::feed($a, $rr['nickname'], $rr['last_update']);
  20         $hmac_sig = hash_hmac("sha1", $params, $rr['secret']);
  21
  22         $headers = array("Content-type: application/atom+xml",
  23                         sprintf("Link: <%s>;rel=hub,<%s>;rel=self",
  24                                 App::get_baseurl().'/pubsubhubbub',
  25                                 $rr['topic']),
  26                         "X-Hub-Signature: sha1=".$hmac_sig);
  27
  28         logger('POST '.print_r($headers, true)."\n".$params, LOGGER_DEBUG);
  29
  30         post_url($rr['callback_url'], $params, $headers);
  31         $ret = $a->get_curl_code();
  32
  33         if ($ret >= 200 && $ret <= 299) {
  34                 logger('successfully pushed to '.$rr['callback_url']);
  35
  36                 // set last_update to "now", and reset push=0
  37                 $date_now = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
  38                 q("UPDATE `push_subscriber` SET `push` = 0, last_update = '%s' WHERE id = %d",
  39                         dbesc($date_now),
  40                         intval($rr['id']));
  41
  42         } else {
  43                 logger('error when pushing to '.$rr['callback_url'].' HTTP: '.$ret);
  44
  45                 // we use the push variable also as a counter, if we failed we
  46                 // increment this until some upper limit where we give up
  47                 $new_push = intval($rr['push']) + 1;
  48
  49                 if ($new_push > 30) // OK, let's give up
  50                         $new_push = 0;
  51
  52                 q("UPDATE `push_subscriber` SET `push` = %d WHERE id = %d",
  53                         $new_push,
  54                         intval($rr['id']));
  55         }
  56 }
  57
  58
  59 function pubsubpublish_run(&$argv, &$argc){
  60         global $a, $db;
  61
  62         if(is_null($a)){
  63                 $a = new App;
  64         }
  65
  66         if(is_null($db)){
  67                 @include(".htconfig.php");
  68                 require_once("include/dba.php");
  69                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  70                 unset($db_host, $db_user, $db_pass, $db_data);
  71         };
  72
  73         require_once('include/items.php');
  74
  75         Config::load();
  76
  77         // Don't check this stuff if the function is called by the poller
  78         if (App::callstack() != "poller_run") {
  79                 if (App::is_already_running("pubsubpublish", "include/pubsubpublish.php", 540)) {
  80                         return;
  81                 }
  82         }
  83
  84         $a->set_baseurl(get_config('system','url'));
  85
  86         load_hooks();
  87
  88         if ($argc > 1) {
  89                 $pubsubpublish_id = intval($argv[1]);
  90         }
  91         else {
  92                 // We'll push to each subscriber that has push > 0,
  93                 // i.e. there has been an update (set in notifier.php).
  94                 $r = q("SELECT `id`, `callback_url` FROM `push_subscriber` WHERE `push` > 0");
  95
  96                 // Use the delivery interval that is also used for the notifier
  97                 $interval = Config::get("system", "delivery_interval", 2);
  98
  99                 // If we are using the worker we don't need a delivery interval
 100                 if (get_config("system", "worker")) {
 101                         $interval = false;
 102                 }
 103
 104                 foreach ($r as $rr) {
 105                         logger("Publish feed to ".$rr["callback_url"], LOGGER_DEBUG);
 106                         proc_run(PRIORITY_HIGH, 'include/pubsubpublish.php', $rr["id"]);
 107
 108                         if($interval)
 109                                 @time_sleep_until(microtime(true) + (float) $interval);
 110                 }
 111         }
 112
 113         handle_pubsubhubbub($pubsubpublish_id);
 114
 115         return;
 116
 117 }
 118
 119 if (array_search(__file__,get_included_files())===0){
 120   pubsubpublish_run($_SERVER["argv"],$_SERVER["argc"]);
 121   killme();
 122 }
 123