MastoAPI: Add list of blocked users.

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -335,6 +335,15 @@ def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
     end
   end
 
+  # TODO: Use proper query
+  def blocks(%{assigns: %{user: user}} = conn, _) do
+    with blocked_users <- user.info["blocks"] || [],
+         accounts <- Enum.map(blocked_users, fn (ap_id) -> User.get_cached_by_ap_id(ap_id) end) do
+      res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
+      json(conn, res)
+    end
+  end
+
   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
     accounts = User.search(query, params["resolve"] == "true")
 

lib/pleroma/web/router.ex

@@ -65,7 +65,8 @@ def user_fetcher(username) do
 
     post "/follows", MastodonAPIController, :follow
 
-    get "/blocks", MastodonAPIController, :empty_array
+    get "/blocks", MastodonAPIController, :blocks
+
     get "/domain_blocks", MastodonAPIController, :empty_array
     get "/follow_requests", MastodonAPIController, :empty_array
     get "/mutes", MastodonAPIController, :empty_array

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -309,6 +309,20 @@ test "blocking / unblocking a user", %{conn: conn} do
     assert %{"id" => id, "blocking" => false} = json_response(conn, 200)
   end
 
+  test "getting a list of blocks", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, user} = User.block(user, other_user)
+
+    conn = conn
+    |> assign(:user, user)
+    |> get("/api/v1/blocks")
+
+    other_user_id = other_user.id
+    assert [%{"id" => ^other_user_id}] = json_response(conn, 200)
+  end
+
   test "unimplemented mute endpoints" do
     user = insert(:user)
     other_user = insert(:user)