mod/receive.php

   1 <?php
   2
   3 /**
   4  * Diaspora endpoint
   5  */
   6
   7
   8 require_once('include/salmon.php');
   9 require_once('include/crypto.php');
  10 require_once('include/diaspora.php');
  11
  12
  13
  14 function receive_post(&$a) {
  15
  16         if($a->argc != 3 || $a->argv[1] !== 'users')
  17                 receive_return(500);
  18
  19         $guid = $a->argv[2];
  20
  21         $r = q("SELECT * FROM `user` WHERE `guid` = '%s' LIMIT 1",
  22                 dbesc($guid)
  23         );
  24         if(! count($r))
  25                 receive_return(500);
  26
  27         $importer = $r[0];
  28
  29         $xml = $_POST['xml'];
  30
  31         logger('mod-diaspora: new salmon ' . $xml, LOGGER_DATA);
  32
  33         if(! $xml)
  34                 receive_return(500);
  35
  36         $msg = diaspora_decode($importer,$xml);
  37         if(! $msg)
  38                 receive_return(500);
  39
  40         // If we reached this point, the message is good.
  41         // Now let's figure out if the author is allowed to send us stuff.
  42
  43         $r = q("SELECT * FROM `contact` WHERE `network` = 'dspr' AND ( `url` = '%s' OR `alias` = '%s')
  44                 AND `uid` = %d LIMIT 1",
  45                 dbesc($author_link),
  46                 dbesc($author_link),
  47                 intval($importer['uid'])
  48         );
  49         if(! count($r)) {
  50                 logger('mod-diaspora: Author unknown to us.');
  51         }
  52
  53         // is this a follower? Or have we ignored the person?
  54         // If so we can not accept this post.
  55
  56         if((count($r)) && (($r[0]['readonly']) || ($r[0]['rel'] == CONTACT_IS_FOLLOWER) || ($r[0]['blocked']))) {
  57                 logger('mod-diaspora: Ignoring this author.');
  58                 receive_return(202);
  59                 // NOTREACHED
  60         }
  61
  62         require_once('include/items.php');
  63
  64         // Placeholder for hub discovery. We shouldn't find any hubs
  65         // since we supplied the fake feed header - and it doesn't have any.
  66
  67         $hub = '';
  68
  69         /**
  70          *
  71          * anti-spam measure: consume_feed will accept a follow activity from
  72          * this person (and nothing else) if there is no existing contact record.
  73          *
  74          */
  75
  76         $contact_rec = ((count($r)) ? $r[0] : null);
  77
  78
  79         receive_return(200);
  80
  81
  82
  83
  84 }
  85