mod/xrd.php

   1 <?php
   2 /**
   3  * @file mod/xrd.php
   4  */
   5 use Friendica\App;
   6 use Friendica\Core\Addon;
   7 use Friendica\Core\System;
   8 use Friendica\Database\DBM;
   9 use Friendica\Protocol\Salmon;
  10
  11 function xrd_init(App $a)
  12 {
  13         if ($a->argv[0] == 'xrd') {
  14                 $uri = urldecode(notags(trim($_GET['uri'])));
  15                 if ($_SERVER['HTTP_ACCEPT'] == 'application/jrd+json') {
  16                         $mode = 'json';
  17                 } else {
  18                         $mode = 'xml';
  19                 }
  20         } else {
  21                 $uri = urldecode(notags(trim($_GET['resource'])));
  22                 if ($_SERVER['HTTP_ACCEPT'] == 'application/xrd+xml') {
  23                         $mode = 'xml';
  24                 } else {
  25                         $mode = 'json';
  26                 }
  27         }
  28
  29         if (substr($uri, 0, 4) === 'http') {
  30                 $name = ltrim(basename($uri), '~');
  31         } else {
  32                 $local = str_replace('acct:', '', $uri);
  33                 if (substr($local, 0, 2) == '//') {
  34                         $local = substr($local, 2);
  35                 }
  36
  37                 $name = substr($local, 0, strpos($local, '@'));
  38         }
  39
  40         $user = dba::selectFirst('user', [], ['nickname' => $name]);
  41         if (!DBM::is_result($user)) {
  42                 killme();
  43         }
  44
  45         $profile_url = System::baseUrl().'/profile/'.$user['nickname'];
  46
  47         $alias = str_replace('/profile/', '/~', $profile_url);
  48
  49         $addr = 'acct:'.$user['nickname'].'@'.$a->get_hostname();
  50         if ($a->get_path()) {
  51                 $addr .= '/'.$a->get_path();
  52         }
  53
  54         if ($mode == 'xml') {
  55                 xrd_xml($a, $addr, $alias, $profile_url, $user);
  56         } else {
  57                 xrd_json($a, $addr, $alias, $profile_url, $user);
  58         }
  59 }
  60
  61 function xrd_json($a, $uri, $alias, $profile_url, $r)
  62 {
  63         $salmon_key = Salmon::salmonKey($r['spubkey']);
  64
  65         header('Access-Control-Allow-Origin: *');
  66         header("Content-type: application/json; charset=utf-8");
  67
  68         $json = ['subject' => $uri,
  69                         'aliases' => [$alias, $profile_url],
  70                         'links' => [['rel' => NAMESPACE_DFRN, 'href' => $profile_url],
  71                                         ['rel' => NAMESPACE_FEED, 'type' => 'application/atom+xml', 'href' => System::baseUrl().'/dfrn_poll/'.$r['nickname']],
  72                                         ['rel' => 'http://webfinger.net/rel/profile-page', 'type' => 'text/html', 'href' => $profile_url],
  73                                         ['rel' => 'http://microformats.org/profile/hcard', 'type' => 'text/html', 'href' => System::baseUrl().'/hcard/'.$r['nickname']],
  74                                         ['rel' => NAMESPACE_POCO, 'href' => System::baseUrl().'/poco/'.$r['nickname']],
  75                                         ['rel' => 'http://webfinger.net/rel/avatar', 'type' => 'image/jpeg', 'href' => System::baseUrl().'/photo/profile/'.$r['uid'].'.jpg'],
  76                                         ['rel' => 'http://joindiaspora.com/seed_location', 'type' => 'text/html', 'href' => System::baseUrl()],
  77                                         ['rel' => 'salmon', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  78                                         ['rel' => 'http://salmon-protocol.org/ns/salmon-replies', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  79                                         ['rel' => 'http://salmon-protocol.org/ns/salmon-mention', 'href' => System::baseUrl().'/salmon/'.$r['nickname'].'/mention'],
  80                                         ['rel' => 'http://ostatus.org/schema/1.0/subscribe', 'template' => System::baseUrl().'/follow?url={uri}'],
  81                                         ['rel' => 'magic-public-key', 'href' => 'data:application/magic-public-key,'.$salmon_key]
  82         ]];
  83         echo json_encode($json);
  84         killme();
  85 }
  86
  87 function xrd_xml($a, $uri, $alias, $profile_url, $r)
  88 {
  89         $salmon_key = Salmon::salmonKey($r['spubkey']);
  90
  91         header('Access-Control-Allow-Origin: *');
  92         header("Content-type: text/xml");
  93
  94         $tpl = get_markup_template('xrd_person.tpl');
  95
  96         $o = replace_macros($tpl, [
  97                 '$nick'        => $r['nickname'],
  98                 '$accturi'     => $uri,
  99                 '$alias'       => $alias,
 100                 '$profile_url' => $profile_url,
 101                 '$hcard_url'   => System::baseUrl() . '/hcard/'         . $r['nickname'],
 102                 '$atom'        => System::baseUrl() . '/dfrn_poll/'     . $r['nickname'],
 103                 '$poco_url'    => System::baseUrl() . '/poco/'          . $r['nickname'],
 104                 '$photo'       => System::baseUrl() . '/photo/profile/' . $r['uid']      . '.jpg',
 105                 '$baseurl' => System::baseUrl(),
 106                 '$salmon'      => System::baseUrl() . '/salmon/'        . $r['nickname'],
 107                 '$salmen'      => System::baseUrl() . '/salmon/'        . $r['nickname'] . '/mention',
 108                 '$subscribe'   => System::baseUrl() . '/follow?url={uri}',
 109                 '$modexp'      => 'data:application/magic-public-key,'  . $salmon_key]
 110         );
 111
 112         $arr = ['user' => $r, 'xml' => $o];
 113         Addon::callHooks('personal_xrd', $arr);
 114
 115         echo $arr['xml'];
 116         killme();
 117 }