From 3a5e8e5e07deee1dfced1f32298d07a2bf3cfcf7 Mon Sep 17 00:00:00 2001
From: FloatingGhost <hannah@coffee-and-dreams.uk>
Date: Sun, 12 Mar 2023 23:59:10 +0000
Subject: [PATCH 01/11] ensure we send the right files for preferred fe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 .../web/fallback/redirect_controller.ex       | 12 ++---
 lib/pleroma/web/plugs/frontend_static.ex      | 45 ++++++++++++++++---
 lib/pleroma/web/plugs/instance_static.ex      |  4 +-
 3 files changed, 49 insertions(+), 12 deletions(-)

diff --git a/lib/pleroma/web/fallback/redirect_controller.ex b/lib/pleroma/web/fallback/redirect_controller.ex
index 6637848a9..60fc15b9e 100644
--- a/lib/pleroma/web/fallback/redirect_controller.ex
+++ b/lib/pleroma/web/fallback/redirect_controller.ex
@@ -30,7 +30,7 @@ defmodule Pleroma.Web.Fallback.RedirectController do
   end
 
   def redirector(conn, _params, code \\ 200) do
-    {:ok, index_content} = File.read(index_file_path())
+    {:ok, index_content} = File.read(index_file_path(conn))
 
     response =
       index_content
@@ -51,7 +51,7 @@ defmodule Pleroma.Web.Fallback.RedirectController do
   end
 
   def redirector_with_meta(conn, params) do
-    {:ok, index_content} = File.read(index_file_path())
+    {:ok, index_content} = File.read(index_file_path(conn))
     tags = build_tags(conn, params)
     preloads = preload_data(conn, params)
 
@@ -69,7 +69,7 @@ defmodule Pleroma.Web.Fallback.RedirectController do
   end
 
   def redirector_with_preload(conn, params) do
-    {:ok, index_content} = File.read(index_file_path())
+    {:ok, index_content} = File.read(index_file_path(conn))
     preloads = preload_data(conn, params)
 
     response =
@@ -91,8 +91,10 @@ defmodule Pleroma.Web.Fallback.RedirectController do
     |> text("")
   end
 
-  defp index_file_path do
-    Pleroma.Web.Plugs.InstanceStatic.file_path("index.html")
+  defp index_file_path(conn) do
+    frontend_type = Pleroma.Web.Plugs.FrontendStatic.preferred_or_fallback(conn, :primary)
+
+    Pleroma.Web.Plugs.InstanceStatic.file_path("index.html", frontend_type)
   end
 
   defp build_tags(conn, params) do
diff --git a/lib/pleroma/web/plugs/frontend_static.ex b/lib/pleroma/web/plugs/frontend_static.ex
index 6ab8e4667..179f2bd47 100644
--- a/lib/pleroma/web/plugs/frontend_static.ex
+++ b/lib/pleroma/web/plugs/frontend_static.ex
@@ -5,17 +5,23 @@
 defmodule Pleroma.Web.Plugs.FrontendStatic do
   require Pleroma.Constants
 
+  @frontend_cookie_name "preferred_frontend"
+
   @moduledoc """
   This is a shim to call `Plug.Static` but with runtime `from` configuration`. It dispatches to the different frontends.
   """
   @behaviour Plug
 
-  def file_path(path, frontend_type \\ :primary) do
-    if configuration = Pleroma.Config.get([:frontends, frontend_type]) do
-      instance_static_path = Pleroma.Config.get([:instance, :static_dir], "instance/static")
+  defp instance_static_path do
+    Pleroma.Config.get([:instance, :static_dir], "instance/static")
+  end
 
+  def file_path(path, frontend_type \\ :primary)
+
+  def file_path(path, frontend_type) when is_atom(frontend_type) do
+    if configuration = Pleroma.Config.get([:frontends, frontend_type]) do
       Path.join([
-        instance_static_path,
+        instance_static_path(),
         "frontends",
         configuration["name"],
         configuration["ref"],
@@ -26,6 +32,15 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
     end
   end
 
+  def file_path(path, frontend_type) when is_binary(frontend_type) do
+    Path.join([
+      instance_static_path(),
+      "frontends",
+      frontend_type,
+      path
+    ])
+  end
+
   def init(opts) do
     opts
     |> Keyword.put(:from, "__unconfigured_frontend_static_plug")
@@ -36,7 +51,8 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
   def call(conn, opts) do
     with false <- api_route?(conn.path_info),
          false <- invalid_path?(conn.path_info),
-         frontend_type <- Map.get(opts, :frontend_type, :primary),
+         fallback_frontend_type <- Map.get(opts, :frontend_type, :primary),
+         frontend_type <- preferred_or_fallback(conn, fallback_frontend_type),
          path when not is_nil(path) <- file_path("", frontend_type) do
       call_static(conn, opts, path)
     else
@@ -45,6 +61,24 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
     end
   end
 
+  def preferred_frontend(conn) do
+    %{req_cookies: cookies} =
+      conn
+      |> Plug.Conn.fetch_cookies()
+
+    Map.get(cookies, @frontend_cookie_name)
+  end
+
+  def preferred_or_fallback(conn, fallback) do
+    case preferred_frontend(conn) do
+      nil ->
+        fallback
+
+      frontend ->
+        frontend
+    end
+  end
+
   defp invalid_path?(list) do
     invalid_path?(list, :binary.compile_pattern(["/", "\\", ":", "\0"]))
   end
@@ -62,6 +96,7 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
 
   defp call_static(conn, opts, from) do
     opts = Map.put(opts, :from, from)
+    IO.inspect(opts, label: "opts")
     Plug.Static.call(conn, opts)
   end
 end
diff --git a/lib/pleroma/web/plugs/instance_static.ex b/lib/pleroma/web/plugs/instance_static.ex
index f82b9a098..d2a674d39 100644
--- a/lib/pleroma/web/plugs/instance_static.ex
+++ b/lib/pleroma/web/plugs/instance_static.ex
@@ -13,11 +13,11 @@ defmodule Pleroma.Web.Plugs.InstanceStatic do
   """
   @behaviour Plug
 
-  def file_path(path) do
+  def file_path(path, frontend_type \\ :primary) do
     instance_path =
       Path.join(Pleroma.Config.get([:instance, :static_dir], "instance/static/"), path)
 
-    frontend_path = Pleroma.Web.Plugs.FrontendStatic.file_path(path, :primary)
+    frontend_path = Pleroma.Web.Plugs.FrontendStatic.file_path(path, frontend_type)
 
     (File.exists?(instance_path) && instance_path) ||
       (frontend_path && File.exists?(frontend_path) && frontend_path) ||

From 004f9fa69b406ffff211cbcefd2871302462a39c Mon Sep 17 00:00:00 2001
From: FloatingGhost <hannah@coffee-and-dreams.uk>
Date: Tue, 28 Mar 2023 12:44:52 +0100
Subject: [PATCH 02/11] add selection UI

---
 config/description.exs                        |  6 ++++++
 .../frontend_switcher_controller.ex           | 20 +++++++++++++++++++
 .../frontend_switcher_view.ex                 |  3 +++
 lib/pleroma/web/plugs/frontend_static.ex      | 15 ++++++++++++--
 lib/pleroma/web/router.ex                     |  9 ++++-----
 .../frontend_switcher/switch.html.eex         |  7 +++++++
 6 files changed, 53 insertions(+), 7 deletions(-)
 create mode 100644 lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
 create mode 100644 lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
 create mode 100644 lib/pleroma/web/templates/frontend_switcher/switch.html.eex

diff --git a/config/description.exs b/config/description.exs
index 2755c36f9..e5e7160d4 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -3328,6 +3328,12 @@ config :pleroma, :config_description, [
         description:
           "A map containing available frontends and parameters for their installation.",
         children: frontend_options
+      },
+      %{
+          key: :pickable,
+          type: {:list, :string},
+          description:
+            "A list containing all frontends users can pick as their preference, format is :name/:ref, e.g pleroma-fe/stable."
       }
     ]
   },
diff --git a/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex b/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
new file mode 100644
index 000000000..4f3efb3aa
--- /dev/null
+++ b/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
@@ -0,0 +1,20 @@
+defmodule Pleroma.Web.FrontendSwitcher.FrontendSwitcherController do
+  use Pleroma.Web, :controller
+  alias Pleroma.Config
+
+  @doc "GET /frontend_switcher"
+  def switch(conn, _params) do
+    pickable = Config.get([:frontends, :pickable], [])
+
+    conn
+    |> put_view(Pleroma.Web.FrontendSwitcher.FrontendSwitcherView)
+    |> render("switch.html", choices: pickable)
+  end
+
+  @doc "POST /frontend_switcher"
+  def do_switch(conn, params) do
+    conn
+    |> put_resp_cookie("preferred_frontend", params["frontend"])
+    |> html("<meta http-equiv=\"refresh\" content=\"0; url=/\">")
+  end
+end
diff --git a/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex b/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
new file mode 100644
index 000000000..e57e4e10b
--- /dev/null
+++ b/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
@@ -0,0 +1,3 @@
+defmodule Pleroma.Web.FrontendSwitcher.FrontendSwitcherView do
+  use Pleroma.Web, :view
+end
diff --git a/lib/pleroma/web/plugs/frontend_static.ex b/lib/pleroma/web/plugs/frontend_static.ex
index 179f2bd47..3708e9e4a 100644
--- a/lib/pleroma/web/plugs/frontend_static.ex
+++ b/lib/pleroma/web/plugs/frontend_static.ex
@@ -49,6 +49,7 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
   end
 
   def call(conn, opts) do
+    IO.inspect("OPTS: #{inspect(opts)}")
     with false <- api_route?(conn.path_info),
          false <- invalid_path?(conn.path_info),
          fallback_frontend_type <- Map.get(opts, :frontend_type, :primary),
@@ -69,16 +70,26 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
     Map.get(cookies, @frontend_cookie_name)
   end
 
-  def preferred_or_fallback(conn, fallback) do
+  # Only override primary frontend
+  def preferred_or_fallback(conn, :primary) do
     case preferred_frontend(conn) do
       nil ->
-        fallback
+        :primary
 
       frontend ->
         frontend
     end
   end
 
+<<<<<<< HEAD
+=======
+  def preferred_or_fallback(conn, fallback), do: fallback
+
+  defp enabled?(if_opt) when is_function(if_opt), do: if_opt.()
+  defp enabled?(true), do: true
+  defp enabled?(_), do: false
+
+>>>>>>> de64c6c54a (add selection UI)
   defp invalid_path?(list) do
     invalid_path?(list, :binary.compile_pattern(["/", "\\", ":", "\0"]))
   end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index a8636cfba..7658f8509 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -637,11 +637,6 @@ defmodule Pleroma.Web.Router do
   end
 
   scope "/api/v1/pleroma", Pleroma.Web.MastodonAPI do
-    pipe_through(:api)
-    get("/accounts/:id/endorsements", AccountController, :endorsements)
-  end
-
-  scope "/api/v2/pleroma", Pleroma.Web.PleromaAPI do
     scope [] do
       pipe_through(:authenticated_api)
       get("/chats", ChatController, :index2)
@@ -901,7 +896,11 @@ defmodule Pleroma.Web.Router do
 
   scope "/", Pleroma.Web do
     pipe_through(:browser)
+
     get("/mailer/unsubscribe/:token", Mailer.SubscriptionController, :unsubscribe)
+
+    get("/frontend_switcher", FrontendSwitcher.FrontendSwitcherController, :switch)
+    post("/frontend_switcher", FrontendSwitcher.FrontendSwitcherController, :do_switch)
   end
 
   pipeline :ap_service_actor do
diff --git a/lib/pleroma/web/templates/frontend_switcher/switch.html.eex b/lib/pleroma/web/templates/frontend_switcher/switch.html.eex
new file mode 100644
index 000000000..0692ddfb8
--- /dev/null
+++ b/lib/pleroma/web/templates/frontend_switcher/switch.html.eex
@@ -0,0 +1,7 @@
+<h2>Switch Frontend</h2>
+
+<%= form_for @conn, Routes.frontend_switcher_path(@conn, :do_switch), fn f -> %>
+  <%= select(f, :frontend, @choices) %>
+
+  <%= submit do: "submit" %>
+<% end %>

From bb44501a9eb9c2ba95d362de47f23b0963689b43 Mon Sep 17 00:00:00 2001
From: FloatingGhost <hannah@coffee-and-dreams.uk>
Date: Sun, 12 Mar 2023 23:24:07 +0000
Subject: [PATCH 03/11] Add frontend preference route

---
 .../pleroma_frontend_settings_operation.ex    | 62 +++++++++++++++++++
 .../frontend_settings_controller.ex           | 37 +++++++++++
 lib/pleroma/web/router.ex                     | 12 ++++
 3 files changed, 111 insertions(+)
 create mode 100644 lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
 create mode 100644 lib/pleroma/web/pleroma_api/controllers/frontend_settings_controller.ex

diff --git a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
new file mode 100644
index 000000000..6d1e23277
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
@@ -0,0 +1,62 @@
+defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  import Pleroma.Web.ApiSpec.Helpers
+
+  @spec open_api_operation(atom) :: Operation.t()
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def available_frontends_operation() do
+    %Operation{
+      tags: ["Frontends"],
+      summary: "Frontend Settings Profiles",
+      description: "List frontend setting profiles",
+      operationId: "PleromaAPI.FrontendSettingsController.available_frontends",
+      responses: %{
+        200 =>
+          Operation.response("Frontends", "application/json", %Schema{
+            type: :array,
+            items: %Schema{
+              type: :string
+            }
+          })
+      }
+    }
+  end
+
+  def update_preferred_frontend_operation() do
+    %Operation{
+      tags: ["Frontends"],
+      summary: "Frontend Settings Profiles",
+      description: "List frontend setting profiles",
+      operationId: "PleromaAPI.FrontendSettingsController.available_frontends",
+      requestBody:
+        request_body(
+          "Frontend",
+          %Schema{
+            type: :object,
+            required: [:frontend_name],
+            properties: %{
+              frontend_name: %Schema{
+                type: :string,
+                description: "Frontend name"
+              }
+            }
+          },
+          required: true
+        ),
+      responses: %{
+        200 =>
+          Operation.response("Frontends", "application/json", %Schema{
+            type: :array,
+            items: %Schema{
+              type: :string
+            }
+          })
+      }
+    }
+  end
+end
diff --git a/lib/pleroma/web/pleroma_api/controllers/frontend_settings_controller.ex b/lib/pleroma/web/pleroma_api/controllers/frontend_settings_controller.ex
new file mode 100644
index 000000000..41531c97e
--- /dev/null
+++ b/lib/pleroma/web/pleroma_api/controllers/frontend_settings_controller.ex
@@ -0,0 +1,37 @@
+defmodule Pleroma.Web.PleromaAPI.FrontendSettingsController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Web.Plugs.OAuthScopesPlug
+
+  plug(
+    OAuthScopesPlug,
+    %{fallback: :proceed_unauthenticated, scopes: []}
+    when action in [
+           :available_frontends,
+           :update_preferred_frontend
+         ]
+  )
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation
+
+  action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
+
+  @doc "GET /api/v1/pleroma/preferred_frontend/available"
+  def available_frontends(conn, _params) do
+    available = Pleroma.Config.get([:frontends, :pickable])
+
+    conn
+    |> json(available)
+  end
+
+  @doc "PUT /api/v1/pleroma/preferred_frontend"
+  def update_preferred_frontend(
+        %{body_params: %{frontend_name: preferred_frontend}} = conn,
+        _params
+      ) do
+    conn
+    |> put_resp_cookie("preferred_frontend", preferred_frontend)
+    |> json(%{frontend_name: preferred_frontend})
+  end
+end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 7658f8509..46cb3a409 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -561,6 +561,18 @@ defmodule Pleroma.Web.Router do
     get("/apps", AppController, :index)
     get("/statuses/:id/reactions/:emoji", EmojiReactionController, :index)
     get("/statuses/:id/reactions", EmojiReactionController, :index)
+
+    get(
+      "/preferred_frontend/available",
+      FrontendSettingsController,
+      :available_frontends
+    )
+
+    put(
+      "/preferred_frontend",
+      FrontendSettingsController,
+      :update_preferred_frontend
+    )
   end
 
   scope "/api/v0/pleroma", Pleroma.Web.PleromaAPI do

From 8827e511704b97ee84fa61c68bdfcb5868518dfc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20=C5=9Awi=C4=85tkowski?= <katafrakt@vivaldi.net>
Date: Sat, 3 Feb 2024 14:24:03 +0100
Subject: [PATCH 04/11] Fix OpenAPI spec for preferred_frontend endpoint
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The spec was copied from another endpoint, including the operation id,
leading to scrubbing the valid parameters from the request and simply
not working.

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 .../pleroma_frontend_settings_operation.ex    |  6 +++---
 lib/pleroma/web/plugs/frontend_static.ex      |  7 -------
 .../frontend_settings_controller_test.exs     | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 10 deletions(-)
 create mode 100644 test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs

diff --git a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
index 6d1e23277..812b40e14 100644
--- a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
@@ -30,9 +30,9 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
   def update_preferred_frontend_operation() do
     %Operation{
       tags: ["Frontends"],
-      summary: "Frontend Settings Profiles",
-      description: "List frontend setting profiles",
-      operationId: "PleromaAPI.FrontendSettingsController.available_frontends",
+      summary: "Update preferred frontend setting",
+      description: "Store preferred frontend in cookies",
+      operationId: "PleromaAPI.FrontendSettingsController.update_preferred_frontend",
       requestBody:
         request_body(
           "Frontend",
diff --git a/lib/pleroma/web/plugs/frontend_static.ex b/lib/pleroma/web/plugs/frontend_static.ex
index 3708e9e4a..2808f96fc 100644
--- a/lib/pleroma/web/plugs/frontend_static.ex
+++ b/lib/pleroma/web/plugs/frontend_static.ex
@@ -81,15 +81,8 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
     end
   end
 
-<<<<<<< HEAD
-=======
   def preferred_or_fallback(conn, fallback), do: fallback
 
-  defp enabled?(if_opt) when is_function(if_opt), do: if_opt.()
-  defp enabled?(true), do: true
-  defp enabled?(_), do: false
-
->>>>>>> de64c6c54a (add selection UI)
   defp invalid_path?(list) do
     invalid_path?(list, :binary.compile_pattern(["/", "\\", ":", "\0"]))
   end
diff --git a/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs
new file mode 100644
index 000000000..8c62a5463
--- /dev/null
+++ b/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs
@@ -0,0 +1,19 @@
+defmodule Pleroma.Web.PleromaAPI.FrontendSettingsControllerTest do
+  use Pleroma.Web.ConnCase, async: false
+
+  import Pleroma.Factory
+
+  describe "PUT /api/v1/pleroma/preferred_frontend" do
+    test "sets a cookie with selected frontend" do
+      %{conn: conn} = oauth_access(["read"])
+
+      response =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> put("/api/v1/pleroma/preferred_frontend", %{"frontend_name" => "pleroma-fe/stable"})
+
+      json_response_and_validate_schema(response, 200)
+      assert %{"preferred_frontend" => %{value: "pleroma-fe/stable"}} = response.resp_cookies
+    end
+  end
+end

From fd177a363be9fbaac11bc37893ad8a2acbe9bd02 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Fri, 28 Nov 2025 15:59:07 +0100
Subject: [PATCH 05/11] cleanup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 config/description.exs                   | 8 ++++----
 lib/pleroma/web/plugs/frontend_static.ex | 4 +---
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/config/description.exs b/config/description.exs
index e5e7160d4..a8a201e33 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -3330,10 +3330,10 @@ config :pleroma, :config_description, [
         children: frontend_options
       },
       %{
-          key: :pickable,
-          type: {:list, :string},
-          description:
-            "A list containing all frontends users can pick as their preference, format is :name/:ref, e.g pleroma-fe/stable."
+        key: :pickable,
+        type: {:list, :string},
+        description:
+          "A list containing all frontends users can pick as their preference, format is :name/:ref, e.g pleroma-fe/stable."
       }
     ]
   },
diff --git a/lib/pleroma/web/plugs/frontend_static.ex b/lib/pleroma/web/plugs/frontend_static.ex
index 2808f96fc..6c0186f14 100644
--- a/lib/pleroma/web/plugs/frontend_static.ex
+++ b/lib/pleroma/web/plugs/frontend_static.ex
@@ -49,7 +49,6 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
   end
 
   def call(conn, opts) do
-    IO.inspect("OPTS: #{inspect(opts)}")
     with false <- api_route?(conn.path_info),
          false <- invalid_path?(conn.path_info),
          fallback_frontend_type <- Map.get(opts, :frontend_type, :primary),
@@ -81,7 +80,7 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
     end
   end
 
-  def preferred_or_fallback(conn, fallback), do: fallback
+  def preferred_or_fallback(_conn, fallback), do: fallback
 
   defp invalid_path?(list) do
     invalid_path?(list, :binary.compile_pattern(["/", "\\", ":", "\0"]))
@@ -100,7 +99,6 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
 
   defp call_static(conn, opts, from) do
     opts = Map.put(opts, :from, from)
-    IO.inspect(opts, label: "opts")
     Plug.Static.call(conn, opts)
   end
 end

From 1fd94ed001c6413301b4c1cd1fb4c8f7bf5f4867 Mon Sep 17 00:00:00 2001
From: FloatingGhost <hannah@coffee-and-dreams.uk>
Date: Fri, 14 Apr 2023 17:42:40 +0100
Subject: [PATCH 06/11] ensure only pickable frontends can be returned

---
 lib/pleroma/web/plugs/frontend_static.ex | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/plugs/frontend_static.ex b/lib/pleroma/web/plugs/frontend_static.ex
index 6c0186f14..f1df185e3 100644
--- a/lib/pleroma/web/plugs/frontend_static.ex
+++ b/lib/pleroma/web/plugs/frontend_static.ex
@@ -76,7 +76,11 @@ defmodule Pleroma.Web.Plugs.FrontendStatic do
         :primary
 
       frontend ->
-        frontend
+        if Enum.member?(Pleroma.Config.get([:frontends, :pickable], []), frontend) do
+          frontend
+        else
+          :primary
+        end
     end
   end
 

From f1586f023050ff071713a63ee9c5e5eb1d135093 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Fri, 28 Nov 2025 16:01:00 +0100
Subject: [PATCH 07/11] im bad at merge conflicts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 lib/pleroma/web/router.ex | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 46cb3a409..acf8df538 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -649,6 +649,11 @@ defmodule Pleroma.Web.Router do
   end
 
   scope "/api/v1/pleroma", Pleroma.Web.MastodonAPI do
+    pipe_through(:api)
+    get("/accounts/:id/endorsements", AccountController, :endorsements)
+  end
+
+  scope "/api/v2/pleroma", Pleroma.Web.PleromaAPI do
     scope [] do
       pipe_through(:authenticated_api)
       get("/chats", ChatController, :index2)

From a80776b2607bbfdab888d2939c1597b1ad31f220 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Fri, 28 Nov 2025 16:10:02 +0100
Subject: [PATCH 08/11] make it work
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex     | 2 ++
 .../frontend_switcher/{ => frontend_switcher}/switch.html.eex   | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
 rename lib/pleroma/web/templates/frontend_switcher/{ => frontend_switcher}/switch.html.eex (86%)

diff --git a/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex b/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
index e57e4e10b..284477431 100644
--- a/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
+++ b/lib/pleroma/web/frontend_switcher/frontend_switcher_view.ex
@@ -1,3 +1,5 @@
 defmodule Pleroma.Web.FrontendSwitcher.FrontendSwitcherView do
   use Pleroma.Web, :view
+
+  import Phoenix.HTML.Form
 end
diff --git a/lib/pleroma/web/templates/frontend_switcher/switch.html.eex b/lib/pleroma/web/templates/frontend_switcher/frontend_switcher/switch.html.eex
similarity index 86%
rename from lib/pleroma/web/templates/frontend_switcher/switch.html.eex
rename to lib/pleroma/web/templates/frontend_switcher/frontend_switcher/switch.html.eex
index 0692ddfb8..c801c8ee8 100644
--- a/lib/pleroma/web/templates/frontend_switcher/switch.html.eex
+++ b/lib/pleroma/web/templates/frontend_switcher/frontend_switcher/switch.html.eex
@@ -1,4 +1,4 @@
-<h2>Switch Frontend</h2>
+<h2>Switch frontend</h2>
 
 <%= form_for @conn, Routes.frontend_switcher_path(@conn, :do_switch), fn f -> %>
   <%= select(f, :frontend, @choices) %>

From 5c139be42e46bef5ec37d974804fc21c704fcec9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Fri, 28 Nov 2025 16:30:03 +0100
Subject: [PATCH 09/11] Add tests
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 .../web/plugs/frontend_static_plug_test.exs   | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/test/pleroma/web/plugs/frontend_static_plug_test.exs b/test/pleroma/web/plugs/frontend_static_plug_test.exs
index a7af3e74e..cbe200738 100644
--- a/test/pleroma/web/plugs/frontend_static_plug_test.exs
+++ b/test/pleroma/web/plugs/frontend_static_plug_test.exs
@@ -97,6 +97,7 @@ defmodule Pleroma.Web.Plugs.FrontendStaticPlugTest do
       "users",
       "tags",
       "mailer",
+      "frontend_switcher",
       "inbox",
       "relay",
       "internal",
@@ -113,4 +114,36 @@ defmodule Pleroma.Web.Plugs.FrontendStaticPlugTest do
 
     assert expected_routes == Pleroma.Web.Router.get_api_routes()
   end
+
+  describe "preferred frontend cookie handling" do
+    test "returns preferred frontend file", %{conn: conn} do
+      name = "test-fe"
+      ref = "develop"
+
+      clear_config([:frontends, :pickable], ["#{name}/#{ref}"])
+      path = "#{@dir}/frontends/#{name}/#{ref}"
+
+      Pleroma.Backports.mkdir_p!(path)
+      File.write!("#{path}/index.html", "from frontend plug")
+
+      index =
+        conn
+        |> put_req_cookie("preferred_frontend", "#{name}/#{ref}")
+        |> get("/")
+
+      assert html_response(index, 200) == "from frontend plug"
+    end
+
+    test "only returns content from pickable frontends", %{conn: conn} do
+      clear_config([:instance, :static_dir], "instance/static")
+      clear_config([:frontends, :pickable], ["pleroma-fe/develop", "pl-fe/develop"])
+
+      config_file =
+        conn
+        |> put_req_cookie("preferred_frontend", "../../../config")
+        |> get("/config.exs")
+
+      refute response(config_file, 200) =~ "import Config"
+    end
+  end
 end

From 78c4332218a755ae81055d6ecd1ddf4fa68e8fbd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Fri, 28 Nov 2025 16:32:51 +0100
Subject: [PATCH 10/11] spec, changelog
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 changelog.d/preferred-frontend.add                          | 1 +
 lib/pleroma/web/api_spec.ex                                 | 3 ++-
 .../operations/pleroma_frontend_settings_operation.ex       | 6 +++---
 3 files changed, 6 insertions(+), 4 deletions(-)
 create mode 100644 changelog.d/preferred-frontend.add

diff --git a/changelog.d/preferred-frontend.add b/changelog.d/preferred-frontend.add
new file mode 100644
index 000000000..145e9451b
--- /dev/null
+++ b/changelog.d/preferred-frontend.add
@@ -0,0 +1 @@
+Allow users to select preferred frontend
diff --git a/lib/pleroma/web/api_spec.ex b/lib/pleroma/web/api_spec.ex
index 3e0ac3704..5006167ea 100644
--- a/lib/pleroma/web/api_spec.ex
+++ b/lib/pleroma/web/api_spec.ex
@@ -151,7 +151,8 @@ defmodule Pleroma.Web.ApiSpec do
               "Suggestions",
               "Announcements",
               "Remote interaction",
-              "Others"
+              "Others",
+              "Preferred frontends"
             ]
           }
         ]
diff --git a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
index 812b40e14..8b74fe02c 100644
--- a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
@@ -11,8 +11,8 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
 
   def available_frontends_operation() do
     %Operation{
-      tags: ["Frontends"],
-      summary: "Frontend Settings Profiles",
+      tags: ["Preferred frontends"],
+      summary: "Frontend settings profiles",
       description: "List frontend setting profiles",
       operationId: "PleromaAPI.FrontendSettingsController.available_frontends",
       responses: %{
@@ -29,7 +29,7 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
 
   def update_preferred_frontend_operation() do
     %Operation{
-      tags: ["Frontends"],
+      tags: ["Preferred frontends"],
       summary: "Update preferred frontend setting",
       description: "Store preferred frontend in cookies",
       operationId: "PleromaAPI.FrontendSettingsController.update_preferred_frontend",

From cc51ee8662a4ed47f6305c4b41f62469b188a8b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?nicole=20miko=C5=82ajczyk?= <git@mkljczk.pl>
Date: Sat, 29 Nov 2025 15:53:10 +0100
Subject: [PATCH 11/11] analysis
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>
---
 .../pleroma_frontend_settings_operation.ex        | 15 +++++++++------
 .../frontend_switcher_controller.ex               |  2 +-
 .../frontend_settings_controller_test.exs         |  2 --
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
index 8b74fe02c..923e4fcc9 100644
--- a/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/pleroma_frontend_settings_operation.ex
@@ -9,7 +9,7 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
     apply(__MODULE__, operation, [])
   end
 
-  def available_frontends_operation() do
+  def available_frontends_operation do
     %Operation{
       tags: ["Preferred frontends"],
       summary: "Frontend settings profiles",
@@ -27,7 +27,7 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
     }
   end
 
-  def update_preferred_frontend_operation() do
+  def update_preferred_frontend_operation do
     %Operation{
       tags: ["Preferred frontends"],
       summary: "Update preferred frontend setting",
@@ -50,10 +50,13 @@ defmodule Pleroma.Web.ApiSpec.PleromaFrontendSettingsOperation do
         ),
       responses: %{
         200 =>
-          Operation.response("Frontends", "application/json", %Schema{
-            type: :array,
-            items: %Schema{
-              type: :string
+          Operation.response("Preferred frontend", "application/json", %Schema{
+            type: :object,
+            properties: %{
+              frontend_name: %Schema{
+                type: :string,
+                description: "Frontend name"
+              }
             }
           })
       }
diff --git a/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex b/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
index 4f3efb3aa..18752c63c 100644
--- a/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
+++ b/lib/pleroma/web/frontend_switcher/frontend_switcher_controller.ex
@@ -15,6 +15,6 @@ defmodule Pleroma.Web.FrontendSwitcher.FrontendSwitcherController do
   def do_switch(conn, params) do
     conn
     |> put_resp_cookie("preferred_frontend", params["frontend"])
-    |> html("<meta http-equiv=\"refresh\" content=\"0; url=/\">")
+    |> html(~s(<meta http-equiv="refresh" content="0; url=/">))
   end
 end
diff --git a/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs
index 8c62a5463..1f14c102f 100644
--- a/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/frontend_settings_controller_test.exs
@@ -1,8 +1,6 @@
 defmodule Pleroma.Web.PleromaAPI.FrontendSettingsControllerTest do
   use Pleroma.Web.ConnCase, async: false
 
-  import Pleroma.Factory
-
   describe "PUT /api/v1/pleroma/preferred_frontend" do
     test "sets a cookie with selected frontend" do
       %{conn: conn} = oauth_access(["read"])