src/Module/Xrd.php

   1 <?php
   2
   3 namespace Friendica\Module;
   4
   5 use Friendica\BaseModule;
   6 use Friendica\Core\Hook;
   7 use Friendica\Core\Renderer;
   8 use Friendica\Core\System;
   9 use Friendica\Model\User;
  10 use Friendica\Protocol\Salmon;
  11 use Friendica\Util\Strings;
  12
  13 /**
  14  * Prints responses to /.well-known/webfinger  or /xrd requests
  15  */
  16 class Xrd extends BaseModule
  17 {
  18         public static function rawContent()
  19         {
  20                 $app = self::getApp();
  21
  22                 // @TODO: Replace with parameter from router
  23                 if ($app->argv[0] == 'xrd') {
  24                         if (empty($_GET['uri'])) {
  25                                 return;
  26                         }
  27
  28                         $uri = urldecode(Strings::escapeTags(trim($_GET['uri'])));
  29                         if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/jrd+json') {
  30                                 $mode = 'json';
  31                         } else {
  32                                 $mode = 'xml';
  33                         }
  34                 } else {
  35                         if (empty($_GET['resource'])) {
  36                                 return;
  37                         }
  38
  39                         $uri = urldecode(Strings::escapeTags(trim($_GET['resource'])));
  40                         if (defaults($_SERVER, 'HTTP_ACCEPT', '') == 'application/xrd+xml') {
  41                                 $mode = 'xml';
  42                         } else {
  43                                 $mode = 'json';
  44                         }
  45                 }
  46
  47                 if (substr($uri, 0, 4) === 'http') {
  48                         $name = ltrim(basename($uri), '~');
  49                 } else {
  50                         $local = str_replace('acct:', '', $uri);
  51                         if (substr($local, 0, 2) == '//') {
  52                                 $local = substr($local, 2);
  53                         }
  54
  55                         $name = substr($local, 0, strpos($local, '@'));
  56                 }
  57
  58                 $user = User::getByNickname($name);
  59
  60                 if (empty($user)) {
  61                         System::httpExit(404);
  62                 }
  63
  64                 $profileURL = $app->getBaseURL() . '/profile/' . $user['nickname'];
  65                 $alias = str_replace('/profile/', '/~', $profileURL);
  66
  67                 $addr = 'acct:' . $user['nickname'] . '@' . $app->getHostName();
  68                 if ($app->getURLPath()) {
  69                         $addr .= '/' . $app->getURLPath();
  70                 }
  71
  72                 if ($mode == 'xml') {
  73                         self::printXML($addr, $alias, $profileURL, $app->getBaseURL(), $user);
  74                 } else {
  75                         self::printJSON($addr, $alias, $profileURL, $app->getBaseURL(), $user);
  76                 }
  77         }
  78
  79         private static function printJSON($uri, $alias, $orofileURL, $baseURL, $user)
  80         {
  81                 $salmon_key = Salmon::salmonKey($user['spubkey']);
  82
  83                 header('Access-Control-Allow-Origin: *');
  84                 header('Content-type: application/json; charset=utf-8');
  85
  86                 $json = [
  87                         'subject' => $uri,
  88                         'aliases' => [
  89                                 $alias,
  90                                 $orofileURL,
  91                         ],
  92                         'links'   => [
  93                                 [
  94                                         'rel'  => NAMESPACE_DFRN,
  95                                         'href' => $orofileURL,
  96                                 ],
  97                                 [
  98                                         'rel'  => NAMESPACE_FEED,
  99                                         'type' => 'application/atom+xml',
 100                                         'href' => $baseURL . '/dfrn_poll/' . $user['nickname'],
 101                                 ],
 102                                 [
 103                                         'rel'  => 'http://webfinger.net/rel/profile-page',
 104                                         'type' => 'text/html',
 105                                         'href' => $orofileURL,
 106                                 ],
 107                                 [
 108                                         'rel'  => 'self',
 109                                         'type' => 'application/activity+json',
 110                                         'href' => $orofileURL,
 111                                 ],
 112                                 [
 113                                         'rel'  => 'http://microformats.org/profile/hcard',
 114                                         'type' => 'text/html',
 115                                         'href' => $baseURL . '/hcard/' . $user['nickname'],
 116                                 ],
 117                                 [
 118                                         'rel'  => NAMESPACE_POCO,
 119                                         'href' => $baseURL . '/poco/' . $user['nickname'],
 120                                 ],
 121                                 [
 122                                         'rel'  => 'http://webfinger.net/rel/avatar',
 123                                         'type' => 'image/jpeg',
 124                                         'href' => $baseURL . '/photo/profile/' . $user['uid'] . '.jpg',
 125                                 ],
 126                                 [
 127                                         'rel'  => 'http://joindiaspora.com/seed_location',
 128                                         'type' => 'text/html',
 129                                         'href' => $baseURL,
 130                                 ],
 131                                 [
 132                                         'rel'  => 'salmon',
 133                                         'href' => $baseURL . '/salmon/' . $user['nickname'],
 134                                 ],
 135                                 [
 136                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-replies',
 137                                         'href' => $baseURL . '/salmon/' . $user['nickname'],
 138                                 ],
 139                                 [
 140                                         'rel'  => 'http://salmon-protocol.org/ns/salmon-mention',
 141                                         'href' => $baseURL . '/salmon/' . $user['nickname'] . '/mention',
 142                                 ],
 143                                 [
 144                                         'rel'      => 'http://ostatus.org/schema/1.0/subscribe',
 145                                         'template' => $baseURL . '/follow?url={uri}',
 146                                 ],
 147                                 [
 148                                         'rel'  => 'magic-public-key',
 149                                         'href' => 'data:application/magic-public-key,' . $salmon_key,
 150                                 ],
 151                                 [
 152                                         'rel'  => 'http://purl.org/openwebauth/v1',
 153                                         'type' => 'application/x-zot+json',
 154                                         'href' => $baseURL . '/owa',
 155                                 ],
 156                         ],
 157                 ];
 158
 159                 echo json_encode($json);
 160                 exit();
 161         }
 162
 163         private static function printXML($uri, $alias, $profileURL, $baseURL, $user)
 164         {
 165                 $salmon_key = Salmon::salmonKey($user['spubkey']);
 166
 167                 header('Access-Control-Allow-Origin: *');
 168                 header('Content-type: text/xml');
 169
 170                 $tpl = Renderer::getMarkupTemplate('xrd_person.tpl');
 171
 172                 $o = Renderer::replaceMacros($tpl, [
 173                         '$nick'        => $user['nickname'],
 174                         '$accturi'     => $uri,
 175                         '$alias'       => $alias,
 176                         '$profile_url' => $profileURL,
 177                         '$hcard_url'   => $baseURL . '/hcard/' . $user['nickname'],
 178                         '$atom'        => $baseURL . '/dfrn_poll/' . $user['nickname'],
 179                         '$poco_url'    => $baseURL . '/poco/' . $user['nickname'],
 180                         '$photo'       => $baseURL . '/photo/profile/' . $user['uid'] . '.jpg',
 181                         '$baseurl'     => $baseURL,
 182                         '$salmon'      => $baseURL . '/salmon/' . $user['nickname'],
 183                         '$salmen'      => $baseURL . '/salmon/' . $user['nickname'] . '/mention',
 184                         '$subscribe'   => $baseURL . '/follow?url={uri}',
 185                         '$openwebauth' => $baseURL . '/owa',
 186                         '$modexp'      => 'data:application/magic-public-key,' . $salmon_key
 187                 ]);
 188
 189                 $arr = ['user' => $user, 'xml' => $o];
 190                 Hook::callAll('personal_xrd', $arr);
 191
 192                 echo $arr['xml'];
 193                 exit();
 194         }
 195 }