mod/xrd.php

   1 <?php
   2 /**
   3  * @file mod/xrd.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\Addon;
   8 use Friendica\Core\System;
   9 use Friendica\Database\DBA;
  10 use Friendica\Protocol\Salmon;
  11
  12 function xrd_init(App $a)
  13 {
  14         if ($a->argv[0] == 'xrd') {
  15                 if (empty($_GET['uri'])) {
  16                         killme();
  17                 }
  18
  19                 $uri = urldecode(notags(trim($_GET['uri'])));
  20                 if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/jrd+json') {
  21                         $mode = 'json';
  22                 } else {
  23                         $mode = 'xml';
  24                 }
  25         } else {
  26                 if (empty($_GET['resource'])) {
  27                         killme();
  28                 }
  29
  30                 $uri = urldecode(notags(trim($_GET['resource'])));
  31                 if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/xrd+xml') {
  32                         $mode = 'xml';
  33                 } else {
  34                         $mode = 'json';
  35                 }
  36         }
  37
  38         if (substr($uri, 0, 4) === 'http') {
  39                 $name = ltrim(basename($uri), '~');
  40         } else {
  41                 $local = str_replace('acct:', '', $uri);
  42                 if (substr($local, 0, 2) == '//') {
  43                         $local = substr($local, 2);
  44                 }
  45
  46                 $name = substr($local, 0, strpos($local, '@'));
  47         }
  48
  49         $user = DBA::selectFirst('user', [], ['nickname' => $name]);
  50         if (!DBA::isResult($user)) {
  51                 killme();
  52         }
  53
  54         $profile_url = System::baseUrl().'/profile/'.$user['nickname'];
  55
  56         $alias = str_replace('/profile/', '/~', $profile_url);
  57
  58         $addr = 'acct:'.$user['nickname'].'@'.$a->get_hostname();
  59         if ($a->get_path()) {
  60                 $addr .= '/'.$a->get_path();
  61         }
  62
  63         if ($mode == 'xml') {
  64                 xrd_xml($a, $addr, $alias, $profile_url, $user);
  65         } else {
  66                 xrd_json($a, $addr, $alias, $profile_url, $user);
  67         }
  68 }
  69
  70 function xrd_json($a, $uri, $alias, $profile_url, $r)
  71 {
  72         $salmon_key = Salmon::salmonKey($r['spubkey']);
  73
  74         header('Access-Control-Allow-Origin: *');
  75         header("Content-type: application/json; charset=utf-8");
  76
  77         $json = ['subject' => $uri,
  78                 'aliases' => [$alias, $profile_url],
  79                 'links' => [
  80                         ['rel' => NAMESPACE_DFRN, 'href' => $profile_url],
  81                         ['rel' => NAMESPACE_FEED, 'type' => 'application/atom+xml', 'href' => System::baseUrl().'/dfrn_poll/'.$r['nickname']],
  82                         ['rel' => 'http://webfinger.net/rel/profile-page', 'type' => 'text/html', 'href' => $profile_url],
  83                         ['rel' => 'self', 'type' => 'application/activity+json', 'href' => $profile_url],
  84                         ['rel' => 'http://microformats.org/profile/hcard', 'type' => 'text/html', 'href' => System::baseUrl().'/hcard/'.$r['nickname']],
  85                         ['rel' => NAMESPACE_POCO, 'href' => System::baseUrl().'/poco/'.$r['nickname']],
  86                         ['rel' => 'http://webfinger.net/rel/avatar', 'type' => 'image/jpeg', 'href' => System::baseUrl().'/photo/profile/'.$r['uid'].'.jpg'],
  87                         ['rel' => 'http://joindiaspora.com/seed_location', 'type' => 'text/html', 'href' => System::baseUrl()],
  88                         ['rel' => 'salmon', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  89                         ['rel' => 'http://salmon-protocol.org/ns/salmon-replies', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  90                         ['rel' => 'http://salmon-protocol.org/ns/salmon-mention', 'href' => System::baseUrl().'/salmon/'.$r['nickname'].'/mention'],
  91                         ['rel' => 'http://ostatus.org/schema/1.0/subscribe', 'template' => System::baseUrl().'/follow?url={uri}'],
  92                         ['rel' => 'magic-public-key', 'href' => 'data:application/magic-public-key,'.$salmon_key],
  93                         ['rel' => 'http://purl.org/openwebauth/v1', 'type' => 'application/x-dfrn+json', 'href' => System::baseUrl().'/owa']
  94                 ]
  95         ];
  96
  97         echo json_encode($json);
  98         killme();
  99 }
 100
 101 function xrd_xml($a, $uri, $alias, $profile_url, $r)
 102 {
 103         $salmon_key = Salmon::salmonKey($r['spubkey']);
 104
 105         header('Access-Control-Allow-Origin: *');
 106         header("Content-type: text/xml");
 107
 108         $tpl = get_markup_template('xrd_person.tpl');
 109
 110         $o = replace_macros($tpl, [
 111                 '$nick'        => $r['nickname'],
 112                 '$accturi'     => $uri,
 113                 '$alias'       => $alias,
 114                 '$profile_url' => $profile_url,
 115                 '$hcard_url'   => System::baseUrl() . '/hcard/'         . $r['nickname'],
 116                 '$atom'        => System::baseUrl() . '/dfrn_poll/'     . $r['nickname'],
 117                 '$poco_url'    => System::baseUrl() . '/poco/'          . $r['nickname'],
 118                 '$photo'       => System::baseUrl() . '/photo/profile/' . $r['uid']      . '.jpg',
 119                 '$baseurl'     => System::baseUrl(),
 120                 '$salmon'      => System::baseUrl() . '/salmon/'        . $r['nickname'],
 121                 '$salmen'      => System::baseUrl() . '/salmon/'        . $r['nickname'] . '/mention',
 122                 '$subscribe'   => System::baseUrl() . '/follow?url={uri}',
 123                 '$openwebauth' => System::baseUrl() . '/owa',
 124                 '$modexp'      => 'data:application/magic-public-key,'  . $salmon_key]
 125         );
 126
 127         $arr = ['user' => $r, 'xml' => $o];
 128         Addon::callHooks('personal_xrd', $arr);
 129
 130         echo $arr['xml'];
 131         killme();
 132 }