Merge branch 'feature/reblog-muting' into 'develop'

Implement mastodon's reblog hiding feature

See merge request pleroma/pleroma!916

lib/pleroma/user.ex

@@ -1385,4 +1385,8 @@ defmodule Pleroma.User do
       offset: ^((page - 1) * page_size)
     )
   end
+
+  def showing_reblogs?(%User{} = user, %User{} = target) do
+    target.ap_id not in user.info.muted_reblogs
+  end
 end

lib/pleroma/user/info.ex

@@ -21,6 +21,7 @@ defmodule Pleroma.User.Info do
     field(:blocks, {:array, :string}, default: [])
     field(:domain_blocks, {:array, :string}, default: [])
     field(:mutes, {:array, :string}, default: [])
+    field(:muted_reblogs, {:array, :string}, default: [])
     field(:deactivated, :boolean, default: false)
     field(:no_rich_text, :boolean, default: false)
     field(:ap_enabled, :boolean, default: false)
@@ -259,4 +260,16 @@ defmodule Pleroma.User.Info do
       moderator: is_moderator
     }
   end
+
+  def add_reblog_mute(info, ap_id) do
+    params = %{muted_reblogs: info.muted_reblogs ++ [ap_id]}
+
+    cast(info, params, [:muted_reblogs])
+  end
+
+  def remove_reblog_mute(info, ap_id) do
+    params = %{muted_reblogs: List.delete(info.muted_reblogs, ap_id)}
+
+    cast(info, params, [:muted_reblogs])
+  end
 end

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -679,6 +679,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_pinned(query, _), do: query
 
+  defp restrict_muted_reblogs(query, %{"muting_user" => %User{info: info}}) do
+    muted_reblogs = info.muted_reblogs || []
+
+    from(
+      activity in query,
+      where: fragment("not ?->>'type' = 'Announce'", activity.data),
+      where: fragment("not ? = ANY(?)", activity.actor, ^muted_reblogs)
+    )
+  end
+
+  defp restrict_muted_reblogs(query, _), do: query
+
   def fetch_activities_query(recipients, opts \\ %{}) do
     base_query =
       from(
@@ -706,6 +718,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_replies(opts)
     |> restrict_reblogs(opts)
     |> restrict_pinned(opts)
+    |> restrict_muted_reblogs(opts)
   end
 
   def fetch_activities(recipients, opts \\ %{}) do

lib/pleroma/web/common_api/common_api.ex

@@ -299,4 +299,24 @@ defmodule Pleroma.Web.CommonAPI do
       {:account, nil} -> {:error, "Account not found"}
     end
   end
+
+  def hide_reblogs(user, muted) do
+    ap_id = muted.ap_id
+
+    if ap_id not in user.info.muted_reblogs do
+      info_changeset = User.Info.add_reblog_mute(user.info, ap_id)
+      changeset = Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_changeset)
+      User.update_and_set_cache(changeset)
+    end
+  end
+
+  def show_reblogs(user, muted) do
+    ap_id = muted.ap_id
+
+    if ap_id in user.info.muted_reblogs do
+      info_changeset = User.Info.remove_reblog_mute(user.info, ap_id)
+      changeset = Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_changeset)
+      User.update_and_set_cache(changeset)
+    end
+  end
 end

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -723,11 +723,25 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
     with %User{} = followed <- Repo.get(User, id),
+         false <- User.following?(follower, followed),
          {:ok, follower, followed, _} <- CommonAPI.follow(follower, followed) do
       conn
       |> put_view(AccountView)
       |> render("relationship.json", %{user: follower, target: followed})
     else
+      true ->
+        followed = User.get_cached_by_id(id)
+
+        {:ok, follower} =
+          case conn.params["reblogs"] do
+            true -> CommonAPI.show_reblogs(follower, followed)
+            false -> CommonAPI.hide_reblogs(follower, followed)
+          end
+
+        conn
+        |> put_view(AccountView)
+        |> render("relationship.json", %{user: follower, target: followed})
+
       {:error, message} ->
         conn
         |> put_resp_content_type("application/json")

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -55,7 +55,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
       muting_notifications: false,
       requested: requested,
       domain_blocking: false,
-      showing_reblogs: false,
+      showing_reblogs: User.showing_reblogs?(user, target),
       endorsed: false
     }
   end

lib/pleroma/web/streamer.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.Streamer do
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.MastodonAPI.NotificationView
 
@@ -199,10 +200,12 @@ defmodule Pleroma.Web.Streamer do
         user = User.get_cached_by_ap_id(socket.assigns[:user].ap_id)
         blocks = user.info.blocks || []
         mutes = user.info.mutes || []
+        reblog_mutes = user.info.muted_reblogs || []
 
         parent = Object.normalize(item.data["object"])
 
         unless is_nil(parent) or item.actor in blocks or item.actor in mutes or
+                 item.actor in reblog_mutes or not ActivityPub.contain_activity(item, user) or
                  parent.data["actor"] in blocks or parent.data["actor"] in mutes do
           send(socket.transport_pid, {:text, represent_update(item, user)})
         end
@@ -233,7 +236,8 @@ defmodule Pleroma.Web.Streamer do
         blocks = user.info.blocks || []
         mutes = user.info.mutes || []
 
-        unless item.actor in blocks or item.actor in mutes do
+        unless item.actor in blocks or item.actor in mutes or
+                 not ActivityPub.contain_activity(item, user) do
           send(socket.transport_pid, {:text, represent_update(item, user)})
         end
       else

test/web/activity_pub/activity_pub_test.exs

@@ -424,6 +424,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       assert length(activities) == 20
       assert last == last_expected
     end
+
+    test "doesn't return reblogs for users for whom reblogs have been muted" do
+      activity = insert(:note_activity)
+      user = insert(:user)
+      booster = insert(:user)
+      {:ok, user} = CommonAPI.hide_reblogs(user, booster)
+
+      {:ok, activity, _} = CommonAPI.repeat(activity.id, booster)
+
+      activities = ActivityPub.fetch_activities([], %{"muting_user" => user})
+
+      refute Enum.member?(activities, activity)
+    end
   end
 
   describe "like an object" do

test/web/common_api/common_api_test.exs

@@ -221,4 +221,27 @@ defmodule Pleroma.Web.CommonAPITest do
              } = flag_activity
     end
   end
+
+  describe "reblog muting" do
+    setup do
+      muter = insert(:user)
+
+      muted = insert(:user)
+
+      [muter: muter, muted: muted]
+    end
+
+    test "add a reblog mute", %{muter: muter, muted: muted} do
+      {:ok, muter} = CommonAPI.hide_reblogs(muter, muted)
+
+      assert Pleroma.User.showing_reblogs?(muter, muted) == false
+    end
+
+    test "remove a reblog mute", %{muter: muter, muted: muted} do
+      {:ok, muter} = CommonAPI.hide_reblogs(muter, muted)
+      {:ok, muter} = CommonAPI.show_reblogs(muter, muted)
+
+      assert Pleroma.User.showing_reblogs?(muter, muted) == true
+    end
+  end
 end

test/web/mastodon_api/account_view_test.exs

@@ -144,7 +144,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
       muting_notifications: false,
       requested: false,
       domain_blocking: false,
-      showing_reblogs: false,
+      showing_reblogs: true,
       endorsed: false
     }
 
@@ -202,7 +202,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountViewTest do
           muting_notifications: false,
           requested: false,
           domain_blocking: false,
-          showing_reblogs: false,
+          showing_reblogs: true,
           endorsed: false
         }
       }

test/web/streamer_test.exs

@@ -202,4 +202,34 @@ defmodule Pleroma.Web.StreamerTest do
 
     Task.await(task)
   end
+
+  test "it doesn't send muted reblogs" do
+    user1 = insert(:user)
+    user2 = insert(:user)
+    user3 = insert(:user)
+    CommonAPI.hide_reblogs(user1, user2)
+
+    task =
+      Task.async(fn ->
+        refute_receive {:text, _}, 1_000
+      end)
+
+    fake_socket = %{
+      transport_pid: task.pid,
+      assigns: %{
+        user: user1
+      }
+    }
+
+    {:ok, create_activity} = CommonAPI.post(user3, %{"status" => "I'm kawen"})
+    {:ok, announce_activity, _} = CommonAPI.repeat(create_activity.id, user2)
+
+    topics = %{
+      "public" => [fake_socket]
+    }
+
+    Streamer.push_to_socket(topics, "public", announce_activity)
+
+    Task.await(task)
+  end
 end