mod/xrd.php

   1 <?php
   2 /**
   3  * @file mod/xrd.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\Hook;
   8 use Friendica\Core\Renderer;
   9 use Friendica\Core\System;
  10 use Friendica\Database\DBA;
  11 use Friendica\Protocol\Salmon;
  12 use Friendica\Util\Strings;
  13
  14 function xrd_init(App $a)
  15 {
  16         if ($a->argv[0] == 'xrd') {
  17                 if (empty($_GET['uri'])) {
  18                         System::httpExit(404);
  19                 }
  20
  21                 $uri = urldecode(Strings::escapeTags(trim($_GET['uri'])));
  22                 if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/jrd+json') {
  23                         $mode = 'json';
  24                 } else {
  25                         $mode = 'xml';
  26                 }
  27         } else {
  28                 if (empty($_GET['resource'])) {
  29                         System::httpExit(404);
  30                 }
  31
  32                 $uri = urldecode(Strings::escapeTags(trim($_GET['resource'])));
  33                 if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/xrd+xml') {
  34                         $mode = 'xml';
  35                 } else {
  36                         $mode = 'json';
  37                 }
  38         }
  39
  40         if (substr($uri, 0, 4) === 'http') {
  41                 $name = ltrim(basename($uri), '~');
  42         } else {
  43                 $local = str_replace('acct:', '', $uri);
  44                 if (substr($local, 0, 2) == '//') {
  45                         $local = substr($local, 2);
  46                 }
  47
  48                 $name = substr($local, 0, strpos($local, '@'));
  49         }
  50
  51         $user = DBA::selectFirst('user', [], ['nickname' => $name]);
  52         if (!DBA::isResult($user)) {
  53                 System::httpExit(404);
  54         }
  55
  56         $profile_url = System::baseUrl().'/profile/'.$user['nickname'];
  57
  58         $alias = str_replace('/profile/', '/~', $profile_url);
  59
  60         $addr = 'acct:'.$user['nickname'].'@'.$a->getHostName();
  61         if ($a->getURLPath()) {
  62                 $addr .= '/'.$a->getURLPath();
  63         }
  64
  65         if ($mode == 'xml') {
  66                 xrd_xml($addr, $alias, $profile_url, $user);
  67         } else {
  68                 xrd_json($addr, $alias, $profile_url, $user);
  69         }
  70 }
  71
  72 function xrd_json($uri, $alias, $profile_url, $r)
  73 {
  74         $salmon_key = Salmon::salmonKey($r['spubkey']);
  75
  76         header('Access-Control-Allow-Origin: *');
  77         header("Content-type: application/json; charset=utf-8");
  78
  79         $json = ['subject' => $uri,
  80                 'aliases' => [$alias, $profile_url],
  81                 'links' => [
  82                         ['rel' => NAMESPACE_DFRN, 'href' => $profile_url],
  83                         ['rel' => NAMESPACE_FEED, 'type' => 'application/atom+xml', 'href' => System::baseUrl().'/dfrn_poll/'.$r['nickname']],
  84                         ['rel' => 'http://webfinger.net/rel/profile-page', 'type' => 'text/html', 'href' => $profile_url],
  85                         ['rel' => 'self', 'type' => 'application/activity+json', 'href' => $profile_url],
  86                         ['rel' => 'http://microformats.org/profile/hcard', 'type' => 'text/html', 'href' => System::baseUrl().'/hcard/'.$r['nickname']],
  87                         ['rel' => NAMESPACE_POCO, 'href' => System::baseUrl().'/poco/'.$r['nickname']],
  88                         ['rel' => 'http://webfinger.net/rel/avatar', 'type' => 'image/jpeg', 'href' => System::baseUrl().'/photo/profile/'.$r['uid'].'.jpg'],
  89                         ['rel' => 'http://joindiaspora.com/seed_location', 'type' => 'text/html', 'href' => System::baseUrl()],
  90                         ['rel' => 'salmon', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  91                         ['rel' => 'http://salmon-protocol.org/ns/salmon-replies', 'href' => System::baseUrl().'/salmon/'.$r['nickname']],
  92                         ['rel' => 'http://salmon-protocol.org/ns/salmon-mention', 'href' => System::baseUrl().'/salmon/'.$r['nickname'].'/mention'],
  93                         ['rel' => 'http://ostatus.org/schema/1.0/subscribe', 'template' => System::baseUrl().'/follow?url={uri}'],
  94                         ['rel' => 'magic-public-key', 'href' => 'data:application/magic-public-key,'.$salmon_key],
  95                         ['rel' => 'http://purl.org/openwebauth/v1', 'type' => 'application/x-zot+json', 'href' => System::baseUrl().'/owa']
  96                 ]
  97         ];
  98
  99         echo json_encode($json);
 100         exit();
 101 }
 102
 103 function xrd_xml($uri, $alias, $profile_url, $r)
 104 {
 105         $salmon_key = Salmon::salmonKey($r['spubkey']);
 106
 107         header('Access-Control-Allow-Origin: *');
 108         header("Content-type: text/xml");
 109
 110         $tpl = Renderer::getMarkupTemplate('xrd_person.tpl');
 111
 112         $o = Renderer::replaceMacros($tpl, [
 113                 '$nick'        => $r['nickname'],
 114                 '$accturi'     => $uri,
 115                 '$alias'       => $alias,
 116                 '$profile_url' => $profile_url,
 117                 '$hcard_url'   => System::baseUrl() . '/hcard/'         . $r['nickname'],
 118                 '$atom'        => System::baseUrl() . '/dfrn_poll/'     . $r['nickname'],
 119                 '$poco_url'    => System::baseUrl() . '/poco/'          . $r['nickname'],
 120                 '$photo'       => System::baseUrl() . '/photo/profile/' . $r['uid']      . '.jpg',
 121                 '$baseurl'     => System::baseUrl(),
 122                 '$salmon'      => System::baseUrl() . '/salmon/'        . $r['nickname'],
 123                 '$salmen'      => System::baseUrl() . '/salmon/'        . $r['nickname'] . '/mention',
 124                 '$subscribe'   => System::baseUrl() . '/follow?url={uri}',
 125                 '$openwebauth' => System::baseUrl() . '/owa',
 126                 '$modexp'      => 'data:application/magic-public-key,'  . $salmon_key]
 127         );
 128
 129         $arr = ['user' => $r, 'xml' => $o];
 130         Hook::callAll('personal_xrd', $arr);
 131
 132         echo $arr['xml'];
 133         exit();
 134 }