From af263031e86697b6136cadb61d3b23fa3a2cfd28 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Fri, 10 Aug 2018 15:15:02 -0500
Subject: [PATCH] add basic webfinger support, good enough for now

---
 viera/__init__.py  |  2 ++
 viera/webfinger.py | 24 ++++++++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 viera/webfinger.py

diff --git a/viera/__init__.py b/viera/__init__.py
index c32462d..71b7c2a 100644
--- a/viera/__init__.py
+++ b/viera/__init__.py
@@ -20,3 +20,5 @@ app = aiohttp.web.Application()
 
 from . import database
 from . import actor
+from . import webfinger
+
diff --git a/viera/webfinger.py b/viera/webfinger.py
new file mode 100644
index 0000000..71e172a
--- /dev/null
+++ b/viera/webfinger.py
@@ -0,0 +1,24 @@
+import aiohttp.web
+from . import app
+
+
+async def webfinger(request):
+    subject = request.query['resource']
+
+    if subject != 'acct:viera@{}'.format(request.host):
+        return aiohttp.web.json_response({'error': 'user not found'}, status=404)
+
+    actor_uri = "https://{}/actor".format(request.host)
+    data = {
+        "aliases": [actor_uri],
+        "links": [
+            {"href": actor_uri, "rel": "self", "type": "application/activity+json"},
+            {"href": actor_uri, "rel": "self", "type": "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""}
+        ],
+        "subject": subject
+    }
+
+    return aiohttp.web.json_response(data)
+
+
+app.router.add_get('/.well-known/webfinger', webfinger)