1 files changed, 99 insertions, 0 deletions
diff --git a/mod/wfinger.php b/mod/wfinger.php
new file mode 100644
index 000000000..33d2fe478
--- /dev/null
+++ b/mod/wfinger.php
@@ -0,0 +1,99 @@
+<?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();
+
+}
+\ No newline at end of file