1 files changed, 19 insertions, 0 deletions
diff --git a/app/helpers/webfinger_helper.rb b/app/helpers/webfinger_helper.rb
new file mode 100644
index 000000000..70c493210
--- /dev/null
+++ b/app/helpers/webfinger_helper.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module WebfingerHelper
+  def webfinger!(uri)
+    hidden_service_uri = /\.(onion|i2p)(:\d+)?$/.match(uri)
+
+    raise Mastodon::HostValidationError, 'Instance does not support hidden service connections' if !Rails.configuration.x.access_to_hidden_service && hidden_service_uri
+
+    opts = {
+      ssl: !hidden_service_uri,
+
+      headers: {
+        'User-Agent': Mastodon::Version.user_agent,
+      },
+    }
+
+    Goldfinger::Client.new(uri, opts.merge(Rails.configuration.x.http_client_proxy)).finger
+  end
+end