Add API endpoints and user column for subscription

lib/pleroma/web/router.ex

@@ -500,6 +500,9 @@ defmodule Pleroma.Web.Router do
 
       post("/blocks/create", TwitterAPI.Controller, :block)
       post("/blocks/destroy", TwitterAPI.Controller, :unblock)
+
+      post("/subscriptions/create", TwitterAPI.Controller, :subscribe)
+      post("/subscriptions/destroy", TwitterAPI.Controller, :unsubscribe)
     end
   end
 

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -59,6 +59,18 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     end
   end
 
+  def subscribe(%User{} = subscriber, params) do
+    with {:ok, %User{} = subscribed} <- get_user(params) do
+      User.subscribe(subscriber, subscribed)
+    end
+  end
+
+  def unsubscribe(%User{} = unsubscriber, params) do
+    with {:ok, %User{} = unsubscribed} <- get_user(params) do
+      User.unsubscribe(unsubscriber, unsubscribed)
+    end
+  end
+
   def repeat(%User{} = user, ap_id_or_id) do
     with {:ok, _announce, %{data: %{"id" => id}}} <- CommonAPI.repeat(ap_id_or_id, user),
          %Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -269,6 +269,30 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     end
   end
 
+  def subscribe(%{assigns: %{user: user}} = conn, params) do
+    case TwitterAPI.subscribe(user, params) do
+      {:ok, user, subscribed} ->
+        conn
+        |> put_view(UserView)
+        |> render("show.json", %{user: subscribed, for: user})
+
+      {:error, msg} ->
+        forbidden_json_reply(conn, msg)
+    end
+  end        
+
+  def unsubscribe(%{assigns: %{user: user}} = conn, params) do
+    case TwitterAPI.unsubscribe(user, params) do
+      {:ok, user, unsubscribed} ->
+        conn
+        |> put_view(UserView)
+        |> render("show.json", %{user: unsubscribed, for: user})
+ 
+      {:error, msg} ->
+        forbidden_json_reply(conn, msg)
+    end
+  end
+
   def fetch_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     with %Activity{} = activity <- Activity.get_by_id(id),
          true <- Visibility.visible_for_user?(activity, user) do