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-rw-r--r--mod/wfinger.php111
1 files changed, 111 insertions, 0 deletions
diff --git a/mod/wfinger.php b/mod/wfinger.php
new file mode 100644
index 000000000..bdec92b54
--- /dev/null
+++ b/mod/wfinger.php
@@ -0,0 +1,111 @@
+<?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'];
+
+
+ $r = null;
+
+ if($resource) {
+
+ if(strpos($resource,'acct:') === 0) {
+ $channel = str_replace('acct:','',$resource);
+ if(strpos($channel,'@') !== false) {
+ $host = substr($channel,strpos($channel,'@')+1);
+ if(strcasecmp($host,get_app()->get_hostname())) {
+ goaway('https://' . $host . '/.well-known/webfinger?resource=' . $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)
+ );
+
+ }
+
+
+ header('Access-Control-Allow-Origin: *');
+
+ header('Content-type: application/jrd+json');
+
+
+
+ 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();
+
+ $result['properties'] = array('http://webfinger.example/ns/name' => $r[0]['channel_name']);
+
+ foreach($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' . '?address=' . $r[0]['xchan_addr'],
+ )
+ );
+
+ }
+ else {
+ header($_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();
+
+} \ No newline at end of file