src/Module/Xrd.php

   1 <?php
   2
   3 namespace Friendica\Module;
   4
   5 use Friendica\BaseModule;
   6 use Friendica\Core\Hook;
   7 use Friendica\Core\Renderer;
   8 use Friendica\Database\DBA;
   9 use Friendica\Model\Photo;
  10 use Friendica\Model\User;
  11 use Friendica\Protocol\ActivityNamespace;
  12 use Friendica\Protocol\Salmon;
  13 use Friendica\Util\Strings;
  14
  15 /**
  16  * Prints responses to /.well-known/webfinger  or /xrd requests
  17  */
  18 class Xrd extends BaseModule
  19 {
  20         public static function rawContent(array $parameters = [])
  21         {
  22                 $app = self::getApp();
  23
  24                 // @TODO: Replace with parameter from router
  25                 if ($app->argv[0] == 'xrd') {
  26                         if (empty($_GET['uri'])) {
  27                                 return;
  28                         }
  29
  30                         $uri = urldecode(Strings::escapeTags(trim($_GET['uri'])));
  31                         if (($_SERVER['HTTP_ACCEPT'] ?? '') == 'application/jrd+json') {
  32                                 $mode = 'json';
  33                         } else {
  34                                 $mode = 'xml';
  35                         }
  36                 } else {
  37                         if (empty($_GET['resource'])) {
  38                                 return;
  39                         }
  40
  41                         $uri = urldecode(Strings::escapeTags(trim($_GET['resource'])));
  42                         if (($_SERVER['HTTP_ACCEPT'] ?? '') == 'application/xrd+xml') {
  43                                 $mode = 'xml';
  44                         } else {
  45                                 $mode = 'json';
  46                         }
  47                 }
  48
  49                 if (substr($uri, 0, 4) === 'http') {
  50                         $name = ltrim(basename($uri), '~');
  51                 } else {
  52                         $local = str_replace('acct:', '', $uri);
  53                         if (substr($local, 0, 2) == '//') {
  54                                 $local = substr($local, 2);
  55                         }
  56
  57                         $name = substr($local, 0, strpos($local, '@'));
  58                 }
  59
  60                 $user = User::getByNickname($name);
  61
  62                 if (empty($user)) {
  63                         throw new \Friendica\Network\HTTPException\NotFoundException();
  64                 }
  65
  66                 $owner = User::getOwnerDataById($user['uid']);
  67
  68                 $alias = str_replace('/profile/', '/~', $owner['url']);
  69
  70                 $avatar = Photo::selectFirst(['type'], ['uid' => $owner['uid'], 'profile' => true]);
  71
  72                 if (!DBA::isResult($avatar)) {
  73                         $avatar = ['type' => 'image/jpeg'];
  74                 }
  75
  76                 if ($mode == 'xml') {
  77                         self::printXML($alias, $app->getBaseURL(), $user, $owner, $avatar);
  78                 } else {
  79                         self::printJSON($alias, $app->getBaseURL(), $owner, $avatar);
  80                 }
  81         }
  82
  83         private static function printJSON($alias, $baseURL, $owner, $avatar)
  84         {
  85                 $salmon_key = Salmon::salmonKey($owner['spubkey']);
  86
  87                 header('Access-Control-Allow-Origin: *');
  88                 header('Content-type: application/json; charset=utf-8');
  89
  90                 $json = [
  91                         'subject' => 'acct:' . $owner['addr'],
  92                         'aliases' => [
  93                                 $alias,
  94                                 $owner['url'],
  95                         ],
  96                         'links'   => [
  97                                 [
  98                                         'rel'  => ActivityNamespace::DFRN ,
  99                                         'href' => $owner['url'],
 100                                 ],
 101                                 [
 102                                         'rel'  => ActivityNamespace::FEED,
 103                                         'type' => 'application/atom+xml',
 104                                         'href' => $owner['poll'],
 105                                 ],
 106                                 [
 107                                         'rel'  => 'http://webfinger.net/rel/profile-page',
 108                                         'type' => 'text/html',
 109                                         'href' => $owner['url'],
 110                                 ],
 111                                 [
 112                                         'rel'  => 'self',
 113                                         'type' => 'application/activity+json',
 114                                         'href' => $owner['url'],
 115                                 ],
 116                                 [
 117                                         'rel'  => 'http://microformats.org/profile/hcard',
 118                                         'type' => 'text/html',
 119                                         'href' => $baseURL . '/hcard/' . $owner['nickname'],
 120                                 ],
 121                                 [
 122                                         'rel'  => ActivityNamespace::POCO,
 123                                         'href' => $owner['poco'],
 124                                 ],
 125                                 [
 126                                         'rel'  => 'http://webfinger.net/rel/avatar',
 127                                         'type' => $avatar['type'],
 128                                         'href' => $owner['photo'],
 129                                 ],
 130                                 [
 131                                         'rel'  => 'http://joindiaspora.com/seed_location',
 132                                         'type' => 'text/html',
 133                                         'href' => $baseURL,
 134                                 ],
 135                                 [
 136                                         'rel'  => 'salmon',
 137                                         'href' => $baseURL . '/salmon/' . $owner['nickname'],
 138                                 ],
 139                                 [
 140                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-replies',
 141                                         'href' => $baseURL . '/salmon/' . $owner['nickname'],
 142                                 ],
 143                                 [
 144                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-mention',
 145                                         'href' => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
 146                                 ],
 147                                 [
 148                                         'rel'      => 'http://ostatus.org/schema/1.0/subscribe',
 149                                         'template' => $baseURL . '/follow?url={uri}',
 150                                 ],
 151                                 [
 152                                         'rel'  => 'magic-public-key',
 153                                         'href' => 'data:application/magic-public-key,' . $salmon_key,
 154                                 ],
 155                                 [
 156                                         'rel'  => 'http://purl.org/openwebauth/v1',
 157                                         'type' => 'application/x-zot+json',
 158                                         'href' => $baseURL . '/owa',
 159                                 ],
 160                         ],
 161                 ];
 162
 163                 echo json_encode($json);
 164                 exit();
 165         }
 166
 167         private static function printXML($alias, $baseURL, $user, $owner, $avatar)
 168         {
 169                 $salmon_key = Salmon::salmonKey($owner['spubkey']);
 170
 171                 header('Access-Control-Allow-Origin: *');
 172                 header('Content-type: text/xml');
 173
 174                 $tpl = Renderer::getMarkupTemplate('xrd_person.tpl');
 175
 176                 $o = Renderer::replaceMacros($tpl, [
 177                         '$nick'        => $owner['nickname'],
 178                         '$accturi'     => 'acct:' . $owner['addr'],
 179                         '$alias'       => $alias,
 180                         '$profile_url' => $owner['url'],
 181                         '$hcard_url'   => $baseURL . '/hcard/' . $owner['nickname'],
 182                         '$atom'        => $owner['poll'],
 183                         '$poco_url'    => $owner['poco'],
 184                         '$photo'       => $owner['photo'],
 185                         '$type'        => $avatar['type'],
 186                         '$salmon'      => $baseURL . '/salmon/' . $owner['nickname'],
 187                         '$salmen'      => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
 188                         '$subscribe'   => $baseURL . '/follow?url={uri}',
 189                         '$openwebauth' => $baseURL . '/owa',
 190                         '$modexp'      => 'data:application/magic-public-key,' . $salmon_key
 191                 ]);
 192
 193                 $arr = ['user' => $user, 'xml' => $o];
 194                 Hook::callAll('personal_xrd', $arr);
 195
 196                 echo $arr['xml'];
 197                 exit();
 198         }
 199 }