src/Module/WellKnown/XSocialRelay.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module\WellKnown;
  23
  24 use Friendica\BaseModule;
  25 use Friendica\DI;
  26 use Friendica\Model\Search;
  27
  28 /**
  29  * Node subscription preferences for social realy systems
  30  * @see https://git.feneas.org/jaywink/social-relay/blob/master/docs/relays.md
  31  */
  32 class XSocialRelay extends BaseModule
  33 {
  34         public static function rawContent(array $parameters = [])
  35         {
  36                 $config = DI::config();
  37
  38                 $subscribe = $config->get('system', 'relay_subscribe', false);
  39
  40                 if ($subscribe) {
  41                         $scope = $config->get('system', 'relay_scope', SR_SCOPE_ALL);
  42                 } else {
  43                         $scope = SR_SCOPE_NONE;
  44                 }
  45
  46                 $systemTags = [];
  47                 $userTags = [];
  48
  49                 if ($scope == SR_SCOPE_TAGS) {
  50                         $server_tags = $config->get('system', 'relay_server_tags');
  51                         $tagitems = explode(',', $server_tags);
  52
  53                         /// @todo Check if it was better to use "strtolower" on the tags
  54                         foreach ($tagitems AS $tag) {
  55                                 $systemTags[] = trim($tag, '# ');
  56                         }
  57
  58                         if ($config->get('system', 'relay_user_tags')) {
  59                                 $userTags = Search::getUserTags();
  60                         }
  61                 }
  62
  63                 $tagList = array_unique(array_merge($systemTags, $userTags));
  64
  65                 $relay = [
  66                         'subscribe' => $subscribe,
  67                         'scope'     => $scope,
  68                         'tags'      => $tagList,
  69                         'protocols' => [
  70                                 'diaspora' => [
  71                                         'receive' => DI::baseUrl()->get() . '/receive/public'
  72                                 ],
  73                                 'dfrn'     => [
  74                                         'receive' => DI::baseUrl()->get() . '/dfrn_notify'
  75                                 ]
  76                         ]
  77                 ];
  78
  79                 header('Content-type: application/json; charset=utf-8');
  80                 echo json_encode($relay, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
  81                 exit;
  82         }
  83 }