Mastodon API: Add `exclude_visibilities` parameter to the timeline and notification endpoints

CHANGELOG.md

@@ -17,6 +17,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Authentication: Added rate limit for password-authorized actions / login existence checks
 - Metadata Link: Atom syndication Feed
 - Mix task to re-count statuses for all users (`mix pleroma.count_statuses`)
+- Mastodon API: Add `exclude_visibilities` parameter to the timeline and notification endpoints
 
 ### Changed
 - **Breaking:** Elixir >=1.8 is now required (was >= 1.7)

docs/API/differences_in_mastoapi_responses.md

@@ -13,6 +13,7 @@ Some apps operate under the assumption that no more than 4 attachments can be re
 ## Timelines
 
 Adding the parameter `with_muted=true` to the timeline queries will also return activities by muted (not by blocked!) users.
+Adding the parameter `exclude_visibilities` to the timeline queries will exclude the statuses with the given visibilities. The parameter accepts an array of visibility types (`public`, `unlisted`, `private`, `direct`), e.g., `exclude_visibilities[]=direct&exclude_visibilities[]=private`.
 
 ## Statuses
 
@@ -84,6 +85,12 @@ Has these additional fields under the `pleroma` object:
 
 - `is_seen`: true if the notification was read by the user
 
+## GET `/api/v1/notifications`
+
+Accepts additional parameters:
+
+- `exclude_visibilities`: will exclude the notifications for activities with the given visibilities. The parameter accepts an array of visibility types (`public`, `unlisted`, `private`, `direct`). Usage example: `GET /api/v1/notifications?exclude_visibilities[]=direct&exclude_visibilities[]=private`.
+
 ## POST `/api/v1/statuses`
 
 Additional parameters can be added to the JSON body/Form data:

lib/pleroma/notification.ex

@@ -17,6 +17,7 @@ defmodule Pleroma.Notification do
 
   import Ecto.Query
   import Ecto.Changeset
+  require Logger
 
   @type t :: %__MODULE__{}
 
@@ -34,7 +35,6 @@ def changeset(%Notification{} = notification, attrs) do
   end
 
   def for_user_query(user, opts \\ []) do
-    query =
     Notification
     |> where(user_id: ^user.id)
     |> where(
@@ -54,11 +54,17 @@ def for_user_query(user, opts \\ []) do
         )
     )
     |> preload([n, a, o], activity: {a, object: o})
+    |> exclude_muted(user, opts)
+    |> exclude_visibility(opts)
+  end
 
-    if opts[:with_muted] do
+  defp exclude_muted(query, _, %{with_muted: true}) do
     query
-    else
+  end
-      where(query, [n, a], a.actor not in ^user.info.muted_notifications)
+
+  defp exclude_muted(query, user, _opts) do
+    query
+    |> where([n, a], a.actor not in ^user.info.muted_notifications)
     |> where([n, a], a.actor not in ^user.info.blocks)
     |> where(
       [n, a],
@@ -69,7 +75,51 @@ def for_user_query(user, opts \\ []) do
     )
     |> where([n, a, o, tm], is_nil(tm.user_id))
   end
+
+  @valid_visibilities ~w[direct unlisted public private]
+
+  defp exclude_visibility(query, %{exclude_visibilities: visibility})
+       when is_list(visibility) do
+    if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
+      query
+      |> where(
+        [n, a],
+        not fragment(
+          "activity_visibility(?, ?, ?) = ANY (?)",
+          a.actor,
+          a.recipients,
+          a.data,
+          ^visibility
+        )
+      )
+    else
+      Logger.error("Could not exclude visibility to #{visibility}")
+      query
     end
+  end
+
+  defp exclude_visibility(query, %{exclude_visibilities: visibility})
+       when visibility in @valid_visibilities do
+    query
+    |> where(
+      [n, a],
+      not fragment(
+        "activity_visibility(?, ?, ?) = (?)",
+        a.actor,
+        a.recipients,
+        a.data,
+        ^visibility
+      )
+    )
+  end
+
+  defp exclude_visibility(query, %{exclude_visibilities: visibility})
+       when visibility not in @valid_visibilities do
+    Logger.error("Could not exclude visibility to #{visibility}")
+    query
+  end
+
+  defp exclude_visibility(query, _visibility), do: query
 
   def for_user(user, opts \\ %{}) do
     user

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -596,6 +596,49 @@ defp restrict_visibility(_query, %{visibility: visibility})
 
   defp restrict_visibility(query, _visibility), do: query
 
+  defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
+       when is_list(visibility) do
+    if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
+      from(
+        a in query,
+        where:
+          not fragment(
+            "activity_visibility(?, ?, ?) = ANY (?)",
+            a.actor,
+            a.recipients,
+            a.data,
+            ^visibility
+          )
+      )
+    else
+      Logger.error("Could not exclude visibility to #{visibility}")
+      query
+    end
+  end
+
+  defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
+       when visibility in @valid_visibilities do
+    from(
+      a in query,
+      where:
+        not fragment(
+          "activity_visibility(?, ?, ?) = ?",
+          a.actor,
+          a.recipients,
+          a.data,
+          ^visibility
+        )
+    )
+  end
+
+  defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
+       when visibility not in @valid_visibilities do
+    Logger.error("Could not exclude visibility to #{visibility}")
+    query
+  end
+
+  defp exclude_visibility(query, _visibility), do: query
+
   defp restrict_thread_visibility(query, _, %{skip_thread_containment: true} = _),
     do: query
 
@@ -960,6 +1003,7 @@ def fetch_activities_query(recipients, opts \\ %{}) do
     |> restrict_muted_reblogs(opts)
     |> Activity.restrict_deactivated_users()
     |> exclude_poll_votes(opts)
+    |> exclude_visibility(opts)
   end
 
   def fetch_activities(recipients, opts \\ %{}, pagination \\ :keyset) do

lib/pleroma/web/mastodon_api/mastodon_api.ex

@@ -71,6 +71,7 @@ def get_scheduled_activities(user, params \\ %{}) do
   defp cast_params(params) do
     param_types = %{
       exclude_types: {:array, :string},
+      exclude_visibilities: {:array, :string},
       reblogs: :boolean,
       with_muted: :boolean
     }

test/web/activity_pub/activity_pub_test.exs

@@ -87,6 +87,66 @@ test "it restricts by the appropriate visibility" do
     end
   end
 
+  describe "fetching excluded by visibility" do
+    test "it excludes by the appropriate visibility" do
+      user = insert(:user)
+
+      {:ok, public_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "public"})
+
+      {:ok, direct_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})
+
+      {:ok, unlisted_activity} =
+        CommonAPI.post(user, %{"status" => ".", "visibility" => "unlisted"})
+
+      {:ok, private_activity} =
+        CommonAPI.post(user, %{"status" => ".", "visibility" => "private"})
+
+      activities =
+        ActivityPub.fetch_activities([], %{
+          "exclude_visibilities" => "direct",
+          "actor_id" => user.ap_id
+        })
+
+      assert public_activity in activities
+      assert unlisted_activity in activities
+      assert private_activity in activities
+      refute direct_activity in activities
+
+      activities =
+        ActivityPub.fetch_activities([], %{
+          "exclude_visibilities" => "unlisted",
+          "actor_id" => user.ap_id
+        })
+
+      assert public_activity in activities
+      refute unlisted_activity in activities
+      assert private_activity in activities
+      assert direct_activity in activities
+
+      activities =
+        ActivityPub.fetch_activities([], %{
+          "exclude_visibilities" => "private",
+          "actor_id" => user.ap_id
+        })
+
+      assert public_activity in activities
+      assert unlisted_activity in activities
+      refute private_activity in activities
+      assert direct_activity in activities
+
+      activities =
+        ActivityPub.fetch_activities([], %{
+          "exclude_visibilities" => "public",
+          "actor_id" => user.ap_id
+        })
+
+      refute public_activity in activities
+      assert unlisted_activity in activities
+      assert private_activity in activities
+      assert direct_activity in activities
+    end
+  end
+
   describe "building a user from his ap id" do
     test "it returns a user" do
       user_id = "http://mastodon.example.org/users/admin"

test/web/mastodon_api/controllers/account_controller_test.exs

@@ -237,6 +237,20 @@ test "filters user's statuses by a hashtag", %{conn: conn} do
       assert [%{"id" => id}] = json_response(conn, 200)
       assert id == to_string(post.id)
     end
+
+    test "the user views their own timelines and excludes direct messages", %{conn: conn} do
+      user = insert(:user)
+      {:ok, public_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "public"})
+      {:ok, _direct_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/accounts/#{user.id}/statuses", %{"exclude_visibilities" => ["direct"]})
+
+      assert [%{"id" => id}] = json_response(conn, 200)
+      assert id == to_string(public_activity.id)
+    end
   end
 
   describe "followers" do

test/web/mastodon_api/controllers/notification_controller_test.exs

@@ -137,6 +137,57 @@ test "paginates notifications using min_id, since_id, max_id, and limit", %{conn
     assert [%{"id" => ^notification3_id}, %{"id" => ^notification2_id}] = result
   end
 
+  test "filters notifications using exclude_visibilities", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user)
+
+    {:ok, public_activity} =
+      CommonAPI.post(other_user, %{"status" => "@#{user.nickname}", "visibility" => "public"})
+
+    {:ok, direct_activity} =
+      CommonAPI.post(other_user, %{"status" => "@#{user.nickname}", "visibility" => "direct"})
+
+    {:ok, unlisted_activity} =
+      CommonAPI.post(other_user, %{"status" => "@#{user.nickname}", "visibility" => "unlisted"})
+
+    {:ok, private_activity} =
+      CommonAPI.post(other_user, %{"status" => "@#{user.nickname}", "visibility" => "private"})
+
+    conn = assign(conn, :user, user)
+
+    conn_res =
+      get(conn, "/api/v1/notifications", %{
+        exclude_visibilities: ["public", "unlisted", "private"]
+      })
+
+    assert [%{"status" => %{"id" => id}}] = json_response(conn_res, 200)
+    assert id == direct_activity.id
+
+    conn_res =
+      get(conn, "/api/v1/notifications", %{
+        exclude_visibilities: ["public", "unlisted", "direct"]
+      })
+
+    assert [%{"status" => %{"id" => id}}] = json_response(conn_res, 200)
+    assert id == private_activity.id
+
+    conn_res =
+      get(conn, "/api/v1/notifications", %{
+        exclude_visibilities: ["public", "private", "direct"]
+      })
+
+    assert [%{"status" => %{"id" => id}}] = json_response(conn_res, 200)
+    assert id == unlisted_activity.id
+
+    conn_res =
+      get(conn, "/api/v1/notifications", %{
+        exclude_visibilities: ["unlisted", "private", "direct"]
+      })
+
+    assert [%{"status" => %{"id" => id}}] = json_response(conn_res, 200)
+    assert id == public_activity.id
+  end
+
   test "filters notifications using exclude_types", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)

test/web/mastodon_api/controllers/timeline_controller_test.exs

@@ -20,6 +20,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineControllerTest do
     :ok
   end
 
+  describe "home" do
     test "the home timeline", %{conn: conn} do
       user = insert(:user)
       following = insert(:user)
@@ -43,6 +44,30 @@ test "the home timeline", %{conn: conn} do
       assert [%{"content" => "test"}] = json_response(conn, :ok)
     end
 
+    test "the home timeline when the direct messages are excluded", %{conn: conn} do
+      user = insert(:user)
+      {:ok, public_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "public"})
+      {:ok, direct_activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})
+
+      {:ok, unlisted_activity} =
+        CommonAPI.post(user, %{"status" => ".", "visibility" => "unlisted"})
+
+      {:ok, private_activity} =
+        CommonAPI.post(user, %{"status" => ".", "visibility" => "private"})
+
+      conn =
+        conn
+        |> assign(:user, user)
+        |> get("/api/v1/timelines/home", %{"exclude_visibilities" => ["direct"]})
+
+      assert status_ids = json_response(conn, :ok) |> Enum.map(& &1["id"])
+      assert public_activity.id in status_ids
+      assert unlisted_activity.id in status_ids
+      assert private_activity.id in status_ids
+      refute direct_activity.id in status_ids
+    end
+  end
+
   describe "public" do
     @tag capture_log: true
     test "the public timeline", %{conn: conn} do