src/Module/Xrd.php

   1 <?php
   2
   3 namespace Friendica\Module;
   4
   5 use Friendica\BaseModule;
   6 use Friendica\Core\Hook;
   7 use Friendica\Database\DBA;
   8 use Friendica\Core\Renderer;
   9 use Friendica\Core\System;
  10 use Friendica\Model\User;
  11 use Friendica\Model\Photo;
  12 use Friendica\Protocol\Activity\Namespaces;
  13 use Friendica\Protocol\Salmon;
  14 use Friendica\Util\Strings;
  15
  16 /**
  17  * Prints responses to /.well-known/webfinger  or /xrd requests
  18  */
  19 class Xrd extends BaseModule
  20 {
  21         public static function rawContent()
  22         {
  23                 $app = self::getApp();
  24
  25                 // @TODO: Replace with parameter from router
  26                 if ($app->argv[0] == 'xrd') {
  27                         if (empty($_GET['uri'])) {
  28                                 return;
  29                         }
  30
  31                         $uri = urldecode(Strings::escapeTags(trim($_GET['uri'])));
  32                         if (($_SERVER['HTTP_ACCEPT'] ?? '') == 'application/jrd+json') {
  33                                 $mode = 'json';
  34                         } else {
  35                                 $mode = 'xml';
  36                         }
  37                 } else {
  38                         if (empty($_GET['resource'])) {
  39                                 return;
  40                         }
  41
  42                         $uri = urldecode(Strings::escapeTags(trim($_GET['resource'])));
  43                         if (($_SERVER['HTTP_ACCEPT'] ?? '') == 'application/xrd+xml') {
  44                                 $mode = 'xml';
  45                         } else {
  46                                 $mode = 'json';
  47                         }
  48                 }
  49
  50                 if (substr($uri, 0, 4) === 'http') {
  51                         $name = ltrim(basename($uri), '~');
  52                 } else {
  53                         $local = str_replace('acct:', '', $uri);
  54                         if (substr($local, 0, 2) == '//') {
  55                                 $local = substr($local, 2);
  56                         }
  57
  58                         $name = substr($local, 0, strpos($local, '@'));
  59                 }
  60
  61                 $user = User::getByNickname($name);
  62
  63                 if (empty($user)) {
  64                         throw new \Friendica\Network\HTTPException\NotFoundException();
  65                 }
  66
  67                 $owner = User::getOwnerDataById($user['uid']);
  68
  69                 $alias = str_replace('/profile/', '/~', $owner['url']);
  70
  71                 $avatar = Photo::selectFirst(['type'], ['uid' => $owner['uid'], 'profile' => true]);
  72
  73                 if (!DBA::isResult($avatar)) {
  74                         $avatar = ['type' => 'image/jpeg'];
  75                 }
  76
  77                 if ($mode == 'xml') {
  78                         self::printXML($alias, $app->getBaseURL(), $user, $owner, $avatar);
  79                 } else {
  80                         self::printJSON($alias, $app->getBaseURL(), $owner, $avatar);
  81                 }
  82         }
  83
  84         private static function printJSON($alias, $baseURL, $owner, $avatar)
  85         {
  86                 $salmon_key = Salmon::salmonKey($owner['spubkey']);
  87
  88                 header('Access-Control-Allow-Origin: *');
  89                 header('Content-type: application/json; charset=utf-8');
  90
  91                 $json = [
  92                         'subject' => 'acct:' . $owner['addr'],
  93                         'aliases' => [
  94                                 $alias,
  95                                 $owner['url'],
  96                         ],
  97                         'links'   => [
  98                                 [
  99                                         'rel'  => Namespaces::DFRN ,
 100                                         'href' => $owner['url'],
 101                                 ],
 102                                 [
 103                                         'rel'  => Namespaces::FEED,
 104                                         'type' => 'application/atom+xml',
 105                                         'href' => $owner['poll'],
 106                                 ],
 107                                 [
 108                                         'rel'  => 'http://webfinger.net/rel/profile-page',
 109                                         'type' => 'text/html',
 110                                         'href' => $owner['url'],
 111                                 ],
 112                                 [
 113                                         'rel'  => 'self',
 114                                         'type' => 'application/activity+json',
 115                                         'href' => $owner['url'],
 116                                 ],
 117                                 [
 118                                         'rel'  => 'http://microformats.org/profile/hcard',
 119                                         'type' => 'text/html',
 120                                         'href' => $baseURL . '/hcard/' . $owner['nickname'],
 121                                 ],
 122                                 [
 123                                         'rel'  => Namespaces::POCO,
 124                                         'href' => $owner['poco'],
 125                                 ],
 126                                 [
 127                                         'rel'  => 'http://webfinger.net/rel/avatar',
 128                                         'type' => $avatar['type'],
 129                                         'href' => $owner['photo'],
 130                                 ],
 131                                 [
 132                                         'rel'  => 'http://joindiaspora.com/seed_location',
 133                                         'type' => 'text/html',
 134                                         'href' => $baseURL,
 135                                 ],
 136                                 [
 137                                         'rel'  => 'salmon',
 138                                         'href' => $baseURL . '/salmon/' . $owner['nickname'],
 139                                 ],
 140                                 [
 141                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-replies',
 142                                         'href' => $baseURL . '/salmon/' . $owner['nickname'],
 143                                 ],
 144                                 [
 145                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-mention',
 146                                         'href' => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
 147                                 ],
 148                                 [
 149                                         'rel'      => 'http://ostatus.org/schema/1.0/subscribe',
 150                                         'template' => $baseURL . '/follow?url={uri}',
 151                                 ],
 152                                 [
 153                                         'rel'  => 'magic-public-key',
 154                                         'href' => 'data:application/magic-public-key,' . $salmon_key,
 155                                 ],
 156                                 [
 157                                         'rel'  => 'http://purl.org/openwebauth/v1',
 158                                         'type' => 'application/x-zot+json',
 159                                         'href' => $baseURL . '/owa',
 160                                 ],
 161                         ],
 162                 ];
 163
 164                 echo json_encode($json);
 165                 exit();
 166         }
 167
 168         private static function printXML($alias, $baseURL, $user, $owner, $avatar)
 169         {
 170                 $salmon_key = Salmon::salmonKey($owner['spubkey']);
 171
 172                 header('Access-Control-Allow-Origin: *');
 173                 header('Content-type: text/xml');
 174
 175                 $tpl = Renderer::getMarkupTemplate('xrd_person.tpl');
 176
 177                 $o = Renderer::replaceMacros($tpl, [
 178                         '$nick'        => $owner['nickname'],
 179                         '$accturi'     => 'acct:' . $owner['addr'],
 180                         '$alias'       => $alias,
 181                         '$profile_url' => $owner['url'],
 182                         '$hcard_url'   => $baseURL . '/hcard/' . $owner['nickname'],
 183                         '$atom'        => $owner['poll'],
 184                         '$poco_url'    => $owner['poco'],
 185                         '$photo'       => $owner['photo'],
 186                         '$type'        => $avatar['type'],
 187                         '$salmon'      => $baseURL . '/salmon/' . $owner['nickname'],
 188                         '$salmen'      => $baseURL . '/salmon/' . $owner['nickname'] . '/mention',
 189                         '$subscribe'   => $baseURL . '/follow?url={uri}',
 190                         '$openwebauth' => $baseURL . '/owa',
 191                         '$modexp'      => 'data:application/magic-public-key,' . $salmon_key
 192                 ]);
 193
 194                 $arr = ['user' => $user, 'xml' => $o];
 195                 Hook::callAll('personal_xrd', $arr);
 196
 197                 echo $arr['xml'];
 198                 exit();
 199         }
 200 }