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 }
  31
  32 function wk_social_relay()
  33 {
  34         $subscribe = (bool) Config::get('system', 'relay_subscribe', false);
  35
  36         if ($subscribe) {
  37                 $scope = Config::get('system', 'relay_scope', SR_SCOPE_ALL);
  38         } else {
  39                 $scope = SR_SCOPE_NONE;
  40         }
  41
  42         $tags = [];
  43
  44         if ($scope == SR_SCOPE_TAGS) {
  45                 $server_tags = Config::get('system', 'relay_server_tags');
  46                 $tagitems = explode(",", $server_tags);
  47
  48                 /// @todo Check if it was better to use "strtolower" on the tags
  49                 foreach ($tagitems AS $tag) {
  50                         $tag = trim($tag, "# ");
  51                         $tags[$tag] = $tag;
  52                 }
  53
  54                 if (Config::get('system', 'relay_user_tags')) {
  55                         $terms = q("SELECT DISTINCT(`term`) FROM `search`");
  56
  57                         foreach ($terms AS $term) {
  58                                 $tag = trim($term["term"], "#");
  59                                 $tags[$tag] = $tag;
  60                         }
  61                 }
  62         }
  63
  64         $taglist = [];
  65         foreach ($tags AS $tag) {
  66                 if (!empty($tag)) {
  67                         $taglist[] = $tag;
  68                 }
  69         }
  70
  71         $relay = [
  72                 'subscribe' => $subscribe,
  73                 'scope' => $scope,
  74                 'tags' => $taglist,
  75                 'protocols' => ['diaspora' => ['receive' => System::baseUrl() . '/receive/public'],
  76                         'dfrn' => ['receive' => System::baseUrl() . '/dfrn_notify']]
  77         ];
  78
  79         header('Content-type: application/json; charset=utf-8');
  80         echo json_encode($relay, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
  81         exit;
  82 }