mod/_well_known.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\Config;
   5 use Friendica\Core\System;
   6
   7 require_once 'mod/hostxrd.php';
   8 require_once 'mod/nodeinfo.php';
   9 require_once 'mod/xrd.php';
  10
  11 function _well_known_init(App $a)
  12 {
  13         if ($a->argc > 1) {
  14                 switch ($a->argv[1]) {
  15                         case "host-meta":
  16                                 hostxrd_init($a);
  17                                 break;
  18                         case "x-social-relay":
  19                                 wk_social_relay();
  20                                 break;
  21                         case "nodeinfo":
  22                                 nodeinfo_wellknown($a);
  23                                 break;
  24                         case "webfinger":
  25                                 xrd_init($a);
  26                                 break;
  27                 }
  28         }
  29         System::httpExit(404);
  30         killme();
  31 }
  32
  33 function wk_social_relay()
  34 {
  35         $subscribe = (bool) Config::get('system', 'relay_subscribe', false);
  36
  37         if ($subscribe) {
  38                 $scope = Config::get('system', 'relay_scope', SR_SCOPE_ALL);
  39         } else {
  40                 $scope = SR_SCOPE_NONE;
  41         }
  42
  43         $tags = [];
  44
  45         if ($scope == SR_SCOPE_TAGS) {
  46
  47                 $server_tags = get_config('system', 'relay_server_tags');
  48                 $tagitems = explode(",", $server_tags);
  49
  50                 /// @todo Check if it was better to use "strtolower" on the tags
  51                 foreach ($tagitems AS $tag) {
  52                         $tag = trim($tag, "# ");
  53                         $tags[$tag] = $tag;
  54                 }
  55
  56                 if (get_config('system', 'relay_user_tags')) {
  57                         $terms = q("SELECT DISTINCT(`term`) FROM `search`");
  58
  59                         foreach ($terms AS $term) {
  60                                 $tag = trim($term["term"], "#");
  61                                 $tags[$tag] = $tag;
  62                         }
  63                 }
  64         }
  65
  66         $taglist = [];
  67         foreach ($tags AS $tag) {
  68                 if (!empty($tag)) {
  69                         $taglist[] = $tag;
  70                 }
  71         }
  72
  73         $relay = [
  74                 'subscribe' => $subscribe,
  75                 'scope' => $scope,
  76                 'tags' => $taglist,
  77                 'protocols' => ['diaspora' => System::baseUrl() . '/receive/public',
  78                         'dfrn' => System::baseUrl() . '/dfrn_notify']
  79         ];
  80
  81         header('Content-type: application/json; charset=utf-8');
  82         echo json_encode($relay, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
  83         exit;
  84 }