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