<?php function wfinger_init(&$a) { $result = array(); $scheme = ''; if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS']) $scheme = 'https'; elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) $scheme = 'https'; // Don't complain to me - I'm just implementing the spec. if($scheme !== 'https') { header($_SERVER["SERVER_PROTOCOL"] . ' ' . 500 . ' ' . 'Webfinger requires HTTPS'); killme(); } $resource = $_REQUEST['resource']; header('Access-Control-Allow-Origin: *'); header('Content-type: application/jrd+json'); $r = null; if($resource) { if(strpos($resource,'acct:') === 0) { $channel = str_replace('acct:','',$resource); $channel = substr($channel,0,strpos($channel,'@')); } if(strpos($resource,'http') === 0) { $channel = str_replace('~','',basename($resource)); } $r = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_address = '%s' limit 1", dbesc($channel) ); } if($resource && $r) { $result['subject'] = $resource; $aliases = array( 'acct:' . $r[0]['channel_address'] . '@' . $a->get_hostname(), z_root() . '/channel/' . $r[0]['channel_address'], z_root() . '/~' . $r[0]['channel_address'] ); $result['aliases'] = array(); foreach($aliases as $alias) if($alias != $resource) $result['aliases'][] = $alias; $result['links'] = array( array( 'rel' => 'http://webfinger.example/rel/avatar', 'type' => $r[0]['xchan_photo_mimetype'], 'href' => $r[0]['xchan_photo_l'] ), array( 'rel' => 'http://webfinger.example/rel/profile-page', 'href' => z_root() . '/profile/' . $r[0]['channel_address'], ), array( 'rel' => 'http://webfinger.example/rel/blog', 'href' => z_root() . '/channel/' . $r[0]['channel_address'], ), array( 'rel' => 'http://purl.org/zot/protocol', 'href' => z_root() . '/.well-known/zot-info' . '?zaddr=' . $r[0]['xchan_addr'], ) ); } else { header($_SERVER["SERVER_PROTOCOL"] . ' ' . 400 . ' ' . 'Bad Request'); killme(); } $arr = array('channel' => $r[0], 'request' => $_REQUEST, 'result' => $result); call_hooks('webfinger',$arr); echo json_encode($arr['result']); killme(); }