Unify HTTP metadata handling

test/parrhesia/config_test.exs

@@ -4,6 +4,9 @@ defmodule Parrhesia.ConfigTest do
   alias Parrhesia.Web.Listener
 
   test "returns configured relay limits/policies/features" do
+    assert Parrhesia.Config.get([:metadata, :name]) == "Parrhesia"
+    assert Parrhesia.Config.get([:metadata, :version]) == "0.5.0"
+    assert Parrhesia.Config.get([:metadata, :hide_version?]) == true
     assert Parrhesia.Config.get([:limits, :max_frame_bytes]) == 1_048_576
     assert Parrhesia.Config.get([:limits, :max_event_bytes]) == 262_144
     assert Parrhesia.Config.get([:limits, :max_event_future_skew_seconds]) == 900

test/parrhesia/http_test.exs

@@ -0,0 +1,32 @@
+defmodule Parrhesia.HTTPTest do
+  use ExUnit.Case, async: true
+
+  alias Parrhesia.HTTP
+  alias Parrhesia.Metadata
+
+  test "default headers advertise the configured user agent" do
+    assert Metadata.hide_version?() == true
+    assert HTTP.default_headers() == [{"user-agent", Metadata.user_agent()}]
+  end
+
+  test "default headers are added without overriding request-specific headers" do
+    options =
+      HTTP.put_default_headers(
+        headers: [{"accept", "application/nostr+json"}],
+        decode_body: false
+      )
+
+    assert Keyword.get(options, :headers) == [
+             {"accept", "application/nostr+json"},
+             {"user-agent", Metadata.user_agent()}
+           ]
+
+    assert Keyword.get(options, :decode_body) == false
+  end
+
+  test "explicit user-agent overrides suppress the default case-insensitively" do
+    options = HTTP.put_default_headers(headers: [{"User-Agent", "custom-agent"}])
+
+    assert Keyword.get(options, :headers) == [{"User-Agent", "custom-agent"}]
+  end
+end

test/parrhesia/web/relay_info_test.exs

@@ -0,0 +1,17 @@
+defmodule Parrhesia.Web.RelayInfoTest do
+  use ExUnit.Case, async: true
+
+  alias Parrhesia.Web.Listener
+  alias Parrhesia.Web.RelayInfo
+
+  test "nip-11 omits version when metadata hides it" do
+    document =
+      :parrhesia
+      |> Application.get_env(:listeners, %{})
+      |> Keyword.fetch!(:public)
+      |> then(&Listener.from_opts(listener: &1))
+      |> RelayInfo.document()
+
+    refute Map.has_key?(document, "version")
+  end
+end