+ Fedi Links handler registration
+
+ Fedi Links (web+ap://) describe an ActivityPub resource address, so that you can open a user profile or a particular post from a remote server, but without visiting that server. They will open directly here on your home server instead.
+
+
+ For example, the URL web+ap://seafoam.space/users/m would open the profile of @m@seafoam.space, as it is represented locally on this server, without needing to copy, paste, or search.
+
+
+ Fedi Links use web-based protocols — a type of URL protocol that your browser can learn how to open. Like mailto: or magnet: links, they are opened by an application of your choice. However, they are not recognized by the browser by default, and need to be registered. See MDN for more information .
+
+
+ Support for Fedi Links is currently limited to desktop browsers Firefox, Chrome, Edge, and Opera. Please reach out to the developer of your favorite fedi native app to ask them to implement them!
+
+
+ You will not be able to proceed with registration without enabling JavaScript.
+
+
+ To register this server application to handle web+ap Fedi Link URLs, click the button below.
+
+
+ Register Akkoma to handle fedi links
+
+
+
+
+
+
\ No newline at end of file
diff --git a/priv/static/instance/web-protocol-register.js b/priv/static/instance/web-protocol-register.js
new file mode 100644
index 000000000..94ffdc803
--- /dev/null
+++ b/priv/static/instance/web-protocol-register.js
@@ -0,0 +1,16 @@
+(function () {
+ function registerHandler() {
+ try {
+ navigator.registerProtocolHandler(
+ "web+ap",
+ `${window.origin}/.well-known/protocol-handler?target=%s`,
+ "Akkoma web+ap handler",
+ )
+ } catch (e) {
+ console.error("Could not register", e)
+ window.alert("Sorry, your browser does not support web-based protocol handler registration.")
+ }
+ }
+
+ document.getElementById("register").addEventListener("click", registerHandler);
+}());
\ No newline at end of file
diff --git a/test/pleroma/web/akkoma_api/protocol_handler_controller_test.exs b/test/pleroma/web/akkoma_api/protocol_handler_controller_test.exs
new file mode 100644
index 000000000..ca0466804
--- /dev/null
+++ b/test/pleroma/web/akkoma_api/protocol_handler_controller_test.exs
@@ -0,0 +1,209 @@
+defmodule Pleroma.Web.AkkomaAPI.ProtocolHandlerControllerTest do
+ use Pleroma.Web.ConnCase
+ use Oban.Testing, repo: Pleroma.Repo
+
+ alias Pleroma.Activity
+
+ import Pleroma.Factory
+
+ describe "GET /.well-known/protocol-handler" do
+ test "should return bad_request when missing `target`" do
+ %{conn: conn} = oauth_access([])
+
+ resp =
+ conn
+ |> get("/.well-known/protocol-handler")
+ |> json_response(400)
+
+ assert resp =~ "Missing `target` parameter"
+ end
+
+ test "should return redirect when target parameter is present" do
+ %{conn: conn} = oauth_access([])
+
+ resp =
+ conn
+ |> get("/.well-known/protocol-handler?target=web+ap://outerheaven.club/objects/337fca0c-6282-4142-9491-df51ac917504")
+ |> html_response(302)
+
+ assert resp =~ "You are being"
+ end
+ end
+
+ describe "GET /api/v1/akkoma/protocol-handler" do
+ setup do
+ clear_config([Pleroma.Web.Endpoint, :url, :host], "sub.example.com")
+ Tesla.Mock.mock(fn
+ %{method: :get, url: "https://mastodon.social/users/emelie/statuses/101849165031453009"} ->
+ %Tesla.Env{
+ status: 200,
+ headers: [{"content-type", "application/activity+json"}],
+ body: File.read!("test/fixtures/tesla_mock/status.emelie.json")
+ }
+ %{method: :get, url: "https://mastodon.social/users/emelie"} ->
+ %Tesla.Env{
+ status: 200,
+ headers: [{"content-type", "application/activity+json"}],
+ body: File.read!("test/fixtures/tesla_mock/emelie.json")
+ }
+ %{method: :get, url: "https://mastodon.social/@emelie"} ->
+ %Tesla.Env{
+ status: 200,
+ headers: [{"content-type", "application/activity+json"}],
+ body: File.read!("test/fixtures/tesla_mock/emelie.json")
+ }
+ %{method: :get, url: "https://mastodon.social/users/emelie/collections/featured"} ->
+ %Tesla.Env{
+ status: 200,
+ headers: [{"content-type", "application/activity+json"}],
+ body:
+ File.read!("test/fixtures/users_mock/masto_featured.json")
+ |> String.replace("{{domain}}", "mastodon.social")
+ |> String.replace("{{nickname}}", "emelie")
+ }
+ _ -> %Tesla.Env{
+ status: 404,
+ }
+ end)
+ end
+
+ test "should return bad_request when target prefix has unknown protocol" do
+ %{conn: conn} = oauth_access([])
+
+ resp =
+ conn
+ |> get("/api/v1/akkoma/protocol-handler?target=web%2Bfoo%3A%2F%2Fouterheaven.club/objects/337fca0c-6282-4142-9491-df51ac917504")
+ |> json_response(400)
+
+ assert resp =~ "Could not handle protocol URL"
+ end
+
+ test "should return forbidden for unauthed user when target is remote" do
+ %{conn: conn} = oauth_access([])
+
+ resp =
+ conn
+ |> get("/api/v1/akkoma/protocol-handler?target=web%2Bap%3A%2F%2Fouterheaven.club/objects/337fca0c-6282-4142-9491-df51ac917504")
+ |> json_response(403)
+
+ assert resp =~ "Invalid credentials."
+ end
+
+ test "should return redirect for unauthed user when target is local AP ID for user" do
+ %{conn: conn} = oauth_access([])
+ local_user = insert(:user, %{nickname: "akkoma@sub.example.com", local: true, ap_id: "https://sub.example.com/users/akkoma"})
+
+ resp =
+ conn
+ |> get("/api/v1/akkoma/protocol-handler?target=web%2Bap%3A%2F%2Fsub.example.com/users/akkoma")
+ |> html_response(302)
+
+ assert resp =~ "You are being"
+ assert resp =~ "