From 40b3289c26137ee4d07c7fb79faf232714cc7592 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Fri, 6 Sep 2019 17:08:47 +0700
Subject: [PATCH 1/6] Refactor `add_link_headers/7` -> `add_link_headers/3`

---
 lib/pleroma/web/controller_helper.ex          | 95 ++++++-------------
 .../controllers/mastodon_api_controller.ex    | 28 +++---
 .../web/pleroma_api/pleroma_api_controller.ex | 27 ++----
 3 files changed, 50 insertions(+), 100 deletions(-)

diff --git a/lib/pleroma/web/controller_helper.ex b/lib/pleroma/web/controller_helper.ex
index eeac9f503..b53a01955 100644
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@@ -34,79 +34,38 @@ defmodule Pleroma.Web.ControllerHelper do
 
   defp param_to_integer(_, default), do: default
 
-  def add_link_headers(
-        conn,
-        method,
-        activities,
-        param \\ nil,
-        params \\ %{},
-        func3 \\ nil,
-        func4 \\ nil
-      ) do
-    params =
-      conn.params
-      |> Map.drop(["since_id", "max_id", "min_id"])
-      |> Map.merge(params)
+  def add_link_headers(conn, activities, extra_params \\ %{}) do
+    case List.last(activities) do
+      %{id: max_id} ->
+        params =
+          conn.params
+          |> Map.drop(Map.keys(conn.path_params))
+          |> Map.drop(["since_id", "max_id", "min_id"])
+          |> Map.merge(extra_params)
 
-    last = List.last(activities)
+        limit =
+          params
+          |> Map.get("limit", "20")
+          |> String.to_integer()
 
-    func3 = func3 || (&mastodon_api_url/3)
-    func4 = func4 || (&mastodon_api_url/4)
+        min_id =
+          if length(activities) <= limit do
+            activities
+            |> List.first()
+            |> Map.get(:id)
+          else
+            activities
+            |> Enum.at(limit * -1)
+            |> Map.get(:id)
+          end
 
-    if last do
-      max_id = last.id
+        next_url = current_url(conn, Map.merge(params, %{max_id: max_id}))
+        prev_url = current_url(conn, Map.merge(params, %{min_id: min_id}))
 
-      limit =
-        params
-        |> Map.get("limit", "20")
-        |> String.to_integer()
+        put_resp_header(conn, "link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
 
-      min_id =
-        if length(activities) <= limit do
-          activities
-          |> List.first()
-          |> Map.get(:id)
-        else
-          activities
-          |> Enum.at(limit * -1)
-          |> Map.get(:id)
-        end
-
-      {next_url, prev_url} =
-        if param do
-          {
-            func4.(
-              Pleroma.Web.Endpoint,
-              method,
-              param,
-              Map.merge(params, %{max_id: max_id})
-            ),
-            func4.(
-              Pleroma.Web.Endpoint,
-              method,
-              param,
-              Map.merge(params, %{min_id: min_id})
-            )
-          }
-        else
-          {
-            func3.(
-              Pleroma.Web.Endpoint,
-              method,
-              Map.merge(params, %{max_id: max_id})
-            ),
-            func3.(
-              Pleroma.Web.Endpoint,
-              method,
-              Map.merge(params, %{min_id: min_id})
-            )
-          }
-        end
-
-      conn
-      |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
-    else
-      conn
+      _ ->
+        conn
     end
   end
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
index 8dfad7a54..f30a21bcc 100644
--- a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   use Pleroma.Web, :controller
 
   import Pleroma.Web.ControllerHelper,
-    only: [json_response: 3, add_link_headers: 5, add_link_headers: 4, add_link_headers: 3]
+    only: [json_response: 3, add_link_headers: 2, add_link_headers: 3]
 
   alias Ecto.Changeset
   alias Pleroma.Activity
@@ -365,7 +365,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Enum.reverse()
 
     conn
-    |> add_link_headers(:home_timeline, activities)
+    |> add_link_headers(activities)
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -384,7 +384,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Enum.reverse()
 
     conn
-    |> add_link_headers(:public_timeline, activities, false, %{"local" => local_only})
+    |> add_link_headers(activities, %{"local" => local_only})
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -398,7 +398,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       activities = ActivityPub.fetch_user_activities(user, reading_user, params)
 
       conn
-      |> add_link_headers(:user_statuses, activities, params["id"])
+      |> add_link_headers(activities)
       |> put_view(StatusView)
       |> render("index.json", %{
         activities: activities,
@@ -422,7 +422,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Pagination.fetch_paginated(params)
 
     conn
-    |> add_link_headers(:dm_timeline, activities)
+    |> add_link_headers(activities)
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -523,7 +523,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   def scheduled_statuses(%{assigns: %{user: user}} = conn, params) do
     with scheduled_activities <- MastodonAPI.get_scheduled_activities(user, params) do
       conn
-      |> add_link_headers(:scheduled_statuses, scheduled_activities)
+      |> add_link_headers(scheduled_activities)
       |> put_view(ScheduledActivityView)
       |> render("index.json", %{scheduled_activities: scheduled_activities})
     end
@@ -706,7 +706,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     notifications = MastodonAPI.get_notifications(user, params)
 
     conn
-    |> add_link_headers(:notifications, notifications)
+    |> add_link_headers(notifications)
     |> put_view(NotificationView)
     |> render("index.json", %{notifications: notifications, for: user})
   end
@@ -894,7 +894,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Enum.reverse()
 
     conn
-    |> add_link_headers(:hashtag_timeline, activities, params["tag"], %{"local" => local_only})
+    |> add_link_headers(activities, %{"local" => local_only})
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -910,7 +910,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
         end
 
       conn
-      |> add_link_headers(:followers, followers, user)
+      |> add_link_headers(followers)
       |> put_view(AccountView)
       |> render("accounts.json", %{for: for_user, users: followers, as: :user})
     end
@@ -927,7 +927,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
         end
 
       conn
-      |> add_link_headers(:following, followers, user)
+      |> add_link_headers(followers)
       |> put_view(AccountView)
       |> render("accounts.json", %{for: for_user, users: followers, as: :user})
     end
@@ -1152,7 +1152,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Enum.reverse()
 
     conn
-    |> add_link_headers(:favourites, activities)
+    |> add_link_headers(activities)
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -1179,7 +1179,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
         |> Enum.reverse()
 
       conn
-      |> add_link_headers(:favourites, activities)
+      |> add_link_headers(activities)
       |> put_view(StatusView)
       |> render("index.json", %{activities: activities, for: for_user, as: :activity})
     else
@@ -1200,7 +1200,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> Enum.map(fn b -> Map.put(b.activity, :bookmark, Map.delete(b, :activity)) end)
 
     conn
-    |> add_link_headers(:bookmarks, bookmarks)
+    |> add_link_headers(bookmarks)
     |> put_view(StatusView)
     |> render("index.json", %{activities: activities, for: user, as: :activity})
   end
@@ -1640,7 +1640,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       end)
 
     conn
-    |> add_link_headers(:conversations, participations)
+    |> add_link_headers(participations)
     |> json(conversations)
   end
 
diff --git a/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex b/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
index f4df3b024..d17ccf84d 100644
--- a/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
@@ -5,7 +5,7 @@
 defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
   use Pleroma.Web, :controller
 
-  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 7]
+  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 2]
 
   alias Pleroma.Conversation.Participation
   alias Pleroma.Notification
@@ -27,31 +27,22 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
         %{assigns: %{user: user}} = conn,
         %{"id" => participation_id} = params
       ) do
-    params =
-      params
-      |> Map.put("blocking_user", user)
-      |> Map.put("muting_user", user)
-      |> Map.put("user", user)
-
-    participation =
-      participation_id
-      |> Participation.get(preload: [:conversation])
+    participation = Participation.get(participation_id, preload: [:conversation])
 
     if user.id == participation.user_id do
+      params =
+        params
+        |> Map.put("blocking_user", user)
+        |> Map.put("muting_user", user)
+        |> Map.put("user", user)
+
       activities =
         participation.conversation.ap_id
         |> ActivityPub.fetch_activities_for_context(params)
         |> Enum.reverse()
 
       conn
-      |> add_link_headers(
-        :conversation_statuses,
-        activities,
-        participation_id,
-        params,
-        nil,
-        &pleroma_api_url/4
-      )
+      |> add_link_headers(activities)
       |> put_view(StatusView)
       |> render("index.json", %{activities: activities, for: user, as: :activity})
     end

From 25a64a4aa0a10bf06c2ccdf9a6c493f184170a89 Mon Sep 17 00:00:00 2001
From: stwf <steven.fuchs@dockyard.com>
Date: Fri, 13 Sep 2019 11:46:41 -0400
Subject: [PATCH 2/6] Capture test error messages where appropriate

---
 test/integration/mastodon_websocket_test.exs  | 29 ++++++++++++++-----
 test/web/activity_pub/publisher_test.exs      | 24 +++++++++------
 test/web/activity_pub/relay_test.exs          | 13 +++++++--
 .../mastodon_api_controller_test.exs          | 14 +++++----
 test/web/twitter_api/util_controller_test.exs | 13 +++++----
 .../web_finger/web_finger_controller_test.exs | 13 +++++----
 6 files changed, 70 insertions(+), 36 deletions(-)

diff --git a/test/integration/mastodon_websocket_test.exs b/test/integration/mastodon_websocket_test.exs
index 3975cdcd6..63bf73412 100644
--- a/test/integration/mastodon_websocket_test.exs
+++ b/test/integration/mastodon_websocket_test.exs
@@ -5,6 +5,7 @@
 defmodule Pleroma.Integration.MastodonWebsocketTest do
   use Pleroma.DataCase
 
+  import ExUnit.CaptureLog
   import Pleroma.Factory
 
   alias Pleroma.Integration.WebsocketClient
@@ -39,13 +40,17 @@ defmodule Pleroma.Integration.MastodonWebsocketTest do
   end
 
   test "refuses invalid requests" do
-    assert {:error, {400, _}} = start_socket()
-    assert {:error, {404, _}} = start_socket("?stream=ncjdk")
+    capture_log(fn ->
+      assert {:error, {400, _}} = start_socket()
+      assert {:error, {404, _}} = start_socket("?stream=ncjdk")
+    end)
   end
 
   test "requires authentication and a valid token for protected streams" do
-    assert {:error, {403, _}} = start_socket("?stream=user&access_token=aaaaaaaaaaaa")
-    assert {:error, {403, _}} = start_socket("?stream=user")
+    capture_log(fn ->
+      assert {:error, {403, _}} = start_socket("?stream=user&access_token=aaaaaaaaaaaa")
+      assert {:error, {403, _}} = start_socket("?stream=user")
+    end)
   end
 
   test "allows public streams without authentication" do
@@ -100,19 +105,27 @@ defmodule Pleroma.Integration.MastodonWebsocketTest do
 
     test "accepts the 'user' stream", %{token: token} = _state do
       assert {:ok, _} = start_socket("?stream=user&access_token=#{token.token}")
-      assert {:error, {403, "Forbidden"}} = start_socket("?stream=user")
+
+      assert capture_log(fn ->
+               assert {:error, {403, "Forbidden"}} = start_socket("?stream=user")
+             end) =~ ":badarg"
     end
 
     test "accepts the 'user:notification' stream", %{token: token} = _state do
       assert {:ok, _} = start_socket("?stream=user:notification&access_token=#{token.token}")
-      assert {:error, {403, "Forbidden"}} = start_socket("?stream=user:notification")
+
+      assert capture_log(fn ->
+               assert {:error, {403, "Forbidden"}} = start_socket("?stream=user:notification")
+             end) =~ ":badarg"
     end
 
     test "accepts valid token on Sec-WebSocket-Protocol header", %{token: token} do
       assert {:ok, _} = start_socket("?stream=user", [{"Sec-WebSocket-Protocol", token.token}])
 
-      assert {:error, {403, "Forbidden"}} =
-               start_socket("?stream=user", [{"Sec-WebSocket-Protocol", "I am a friend"}])
+      assert capture_log(fn ->
+               assert {:error, {403, "Forbidden"}} =
+                        start_socket("?stream=user", [{"Sec-WebSocket-Protocol", "I am a friend"}])
+             end) =~ ":badarg"
     end
   end
 end
diff --git a/test/web/activity_pub/publisher_test.exs b/test/web/activity_pub/publisher_test.exs
index 36a39c84c..381757e1b 100644
--- a/test/web/activity_pub/publisher_test.exs
+++ b/test/web/activity_pub/publisher_test.exs
@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.ActivityPub.PublisherTest do
   use Pleroma.DataCase
 
+  import ExUnit.CaptureLog
   import Pleroma.Factory
   import Tesla.Mock
   import Mock
@@ -188,7 +189,10 @@ defmodule Pleroma.Web.ActivityPub.PublisherTest do
       actor = insert(:user)
       inbox = "http://connrefused.site/users/nick1/inbox"
 
-      assert {:error, _} = Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+      assert capture_log(fn ->
+               assert {:error, _} =
+                        Publisher.publish_one(%{inbox: inbox, json: "{}", actor: actor, id: 1})
+             end) =~ "connrefused"
 
       assert called(Instances.set_unreachable(inbox))
     end
@@ -212,14 +216,16 @@ defmodule Pleroma.Web.ActivityPub.PublisherTest do
       actor = insert(:user)
       inbox = "http://connrefused.site/users/nick1/inbox"
 
-      assert {:error, _} =
-               Publisher.publish_one(%{
-                 inbox: inbox,
-                 json: "{}",
-                 actor: actor,
-                 id: 1,
-                 unreachable_since: NaiveDateTime.utc_now()
-               })
+      assert capture_log(fn ->
+               assert {:error, _} =
+                        Publisher.publish_one(%{
+                          inbox: inbox,
+                          json: "{}",
+                          actor: actor,
+                          id: 1,
+                          unreachable_since: NaiveDateTime.utc_now()
+                        })
+             end) =~ "connrefused"
 
       refute called(Instances.set_unreachable(inbox))
     end
diff --git a/test/web/activity_pub/relay_test.exs b/test/web/activity_pub/relay_test.exs
index 4f7d592a6..9db4255d8 100644
--- a/test/web/activity_pub/relay_test.exs
+++ b/test/web/activity_pub/relay_test.exs
@@ -10,6 +10,7 @@ defmodule Pleroma.Web.ActivityPub.RelayTest do
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Relay
 
+  import ExUnit.CaptureLog
   import Pleroma.Factory
   import Mock
 
@@ -20,7 +21,9 @@ defmodule Pleroma.Web.ActivityPub.RelayTest do
 
   describe "follow/1" do
     test "returns errors when user not found" do
-      assert Relay.follow("test-ap-id") == {:error, "Could not fetch by AP id"}
+      assert capture_log(fn ->
+               assert Relay.follow("test-ap-id") == {:error, "Could not fetch by AP id"}
+             end) =~ "Could not fetch by AP id"
     end
 
     test "returns activity" do
@@ -37,7 +40,9 @@ defmodule Pleroma.Web.ActivityPub.RelayTest do
 
   describe "unfollow/1" do
     test "returns errors when user not found" do
-      assert Relay.unfollow("test-ap-id") == {:error, "Could not fetch by AP id"}
+      assert capture_log(fn ->
+               assert Relay.unfollow("test-ap-id") == {:error, "Could not fetch by AP id"}
+             end) =~ "Could not fetch by AP id"
     end
 
     test "returns activity" do
@@ -78,7 +83,9 @@ defmodule Pleroma.Web.ActivityPub.RelayTest do
           }
         )
 
-      assert Relay.publish(activity) == {:error, nil}
+      assert capture_log(fn ->
+               assert Relay.publish(activity) == {:error, nil}
+             end) =~ "[error] error: nil"
     end
 
     test_with_mock "returns announce activity and publish to federate",
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index f4902d043..806ae7e69 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -3963,13 +3963,15 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       Config.put([:suggestions, :enabled], true)
       Config.put([:suggestions, :third_party_engine], "http://test500?{{host}}&{{user}}")
 
-      res =
-        conn
-        |> assign(:user, user)
-        |> get("/api/v1/suggestions")
-        |> json_response(500)
+      assert capture_log(fn ->
+               res =
+                 conn
+                 |> assign(:user, user)
+                 |> get("/api/v1/suggestions")
+                 |> json_response(500)
 
-      assert res == "Something went wrong"
+               assert res == "Something went wrong"
+             end) =~ "Could not retrieve suggestions"
     end
 
     test "returns suggestions", %{conn: conn, user: user, other_user: other_user} do
diff --git a/test/web/twitter_api/util_controller_test.exs b/test/web/twitter_api/util_controller_test.exs
index cf8e69d2b..e36d3130f 100644
--- a/test/web/twitter_api/util_controller_test.exs
+++ b/test/web/twitter_api/util_controller_test.exs
@@ -8,6 +8,7 @@ defmodule Pleroma.Web.TwitterAPI.UtilControllerTest do
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
+  import ExUnit.CaptureLog
   import Pleroma.Factory
   import Mock
 
@@ -338,12 +339,14 @@ defmodule Pleroma.Web.TwitterAPI.UtilControllerTest do
     test "show follow page with error when user cannot fecth by `acct` link", %{conn: conn} do
       user = insert(:user)
 
-      response =
-        conn
-        |> assign(:user, user)
-        |> get("/ostatus_subscribe?acct=https://mastodon.social/users/not_found")
+      assert capture_log(fn ->
+               response =
+                 conn
+                 |> assign(:user, user)
+                 |> get("/ostatus_subscribe?acct=https://mastodon.social/users/not_found")
 
-      assert html_response(response, 200) =~ "Error fetching user"
+               assert html_response(response, 200) =~ "Error fetching user"
+             end) =~ "Object has been deleted"
     end
   end
 
diff --git a/test/web/web_finger/web_finger_controller_test.exs b/test/web/web_finger/web_finger_controller_test.exs
index e23086b2a..bd3ccaaf7 100644
--- a/test/web/web_finger/web_finger_controller_test.exs
+++ b/test/web/web_finger/web_finger_controller_test.exs
@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.WebFinger.WebFingerControllerTest do
   use Pleroma.Web.ConnCase
 
+  import ExUnit.CaptureLog
   import Pleroma.Factory
   import Tesla.Mock
 
@@ -75,11 +76,13 @@ defmodule Pleroma.Web.WebFinger.WebFingerControllerTest do
   test "Sends a 404 when invalid format" do
     user = insert(:user)
 
-    assert_raise Phoenix.NotAcceptableError, fn ->
-      build_conn()
-      |> put_req_header("accept", "text/html")
-      |> get("/.well-known/webfinger?resource=acct:#{user.nickname}@localhost")
-    end
+    assert capture_log(fn ->
+             assert_raise Phoenix.NotAcceptableError, fn ->
+               build_conn()
+               |> put_req_header("accept", "text/html")
+               |> get("/.well-known/webfinger?resource=acct:#{user.nickname}@localhost")
+             end
+           end) =~ "no supported media type in accept header"
   end
 
   test "Sends a 400 when resource param is missing" do

From 5c5ebd38619bb853a58374918fd8983569ba7c0b Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Sat, 14 Sep 2019 01:50:15 +0300
Subject: [PATCH 3/6] Mastodon API: Respect post privacy in
 favourited/reblogged endpoints

---
 CHANGELOG.md                                  |  1 +
 .../controllers/mastodon_api_controller.ex    |  4 ++
 .../mastodon_api_controller_test.exs          | 53 ++++++++++++++++++-
 3 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7fe3bf687..0c5e43123 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Security
 - OStatus: eliminate the possibility of a protocol downgrade attack.
 - OStatus: prevent following locked accounts, bypassing the approval process.
+- Mastodon API: respect post privacy in `/api/v1/statuses/:id/{favourited,reblogged}_by`
 
 ### Removed
 - **Breaking:** GNU Social API with Qvitter extensions support
diff --git a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
index 0940e07a6..060137b80 100644
--- a/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/mastodon_api_controller.ex
@@ -842,6 +842,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def favourited_by(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     with %Activity{} = activity <- Activity.get_by_id_with_object(id),
+         {:visible, true} <- {:visible, Visibility.visible_for_user?(activity, user)},
          %Object{data: %{"likes" => likes}} <- Object.normalize(activity) do
       q = from(u in User, where: u.ap_id in ^likes)
 
@@ -853,12 +854,14 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> put_view(AccountView)
       |> render("accounts.json", %{for: user, users: users, as: :user})
     else
+      {:visible, false} -> {:error, :not_found}
       _ -> json(conn, [])
     end
   end
 
   def reblogged_by(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     with %Activity{} = activity <- Activity.get_by_id_with_object(id),
+         {:visible, true} <- {:visible, Visibility.visible_for_user?(activity, user)},
          %Object{data: %{"announcements" => announces}} <- Object.normalize(activity) do
       q = from(u in User, where: u.ap_id in ^announces)
 
@@ -870,6 +873,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       |> put_view(AccountView)
       |> render("accounts.json", %{for: user, users: users, as: :user})
     else
+      {:visible, false} -> {:error, :not_found}
       _ -> json(conn, [])
     end
   end
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index 806ae7e69..c9bce1439 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -3698,7 +3698,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
         build_conn()
         |> assign(:user, user)
 
-      [conn: conn, activity: activity]
+      [conn: conn, activity: activity, user: user]
     end
 
     test "returns users who have favorited the status", %{conn: conn, activity: activity} do
@@ -3758,6 +3758,32 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       [%{"id" => id}] = response
       assert id == other_user.id
     end
+
+    test "requires authentifucation for private posts", %{conn: conn, user: user} do
+      other_user = insert(:user)
+
+      {:ok, activity} =
+        CommonAPI.post(user, %{
+          "status" => "@#{other_user.nickname} wanna get some #cofe together?",
+          "visibility" => "direct"
+        })
+
+      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+
+      conn
+      |> assign(:user, nil)
+      |> get("/api/v1/statuses/#{activity.id}/favourited_by")
+      |> json_response(404)
+
+      response =
+        build_conn()
+        |> assign(:user, other_user)
+        |> get("/api/v1/statuses/#{activity.id}/favourited_by")
+        |> json_response(200)
+
+      [%{"id" => id}] = response
+      assert id == other_user.id
+    end
   end
 
   describe "GET /api/v1/statuses/:id/reblogged_by" do
@@ -3769,7 +3795,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
         build_conn()
         |> assign(:user, user)
 
-      [conn: conn, activity: activity]
+      [conn: conn, activity: activity, user: user]
     end
 
     test "returns users who have reblogged the status", %{conn: conn, activity: activity} do
@@ -3829,6 +3855,29 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       [%{"id" => id}] = response
       assert id == other_user.id
     end
+
+    test "requires authentifucation for private posts", %{conn: conn, user: user} do
+      other_user = insert(:user)
+
+      {:ok, activity} =
+        CommonAPI.post(user, %{
+          "status" => "@#{other_user.nickname} wanna get some #cofe together?",
+          "visibility" => "direct"
+        })
+
+      conn
+      |> assign(:user, nil)
+      |> get("/api/v1/statuses/#{activity.id}/reblogged_by")
+      |> json_response(404)
+
+      response =
+        build_conn()
+        |> assign(:user, other_user)
+        |> get("/api/v1/statuses/#{activity.id}/reblogged_by")
+        |> json_response(200)
+
+      assert [] == response
+    end
   end
 
   describe "POST /auth/password, with valid parameters" do

From 85b6144ffd9e96fc79608847fe739a40ca094207 Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Sat, 14 Sep 2019 10:46:35 +0000
Subject: [PATCH 4/6] Apply suggestion to
 test/web/mastodon_api/mastodon_api_controller_test.exs

---
 test/web/mastodon_api/mastodon_api_controller_test.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index c9bce1439..013a838b8 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -3759,7 +3759,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       assert id == other_user.id
     end
 
-    test "requires authentifucation for private posts", %{conn: conn, user: user} do
+    test "requires authentification for private posts", %{conn: conn, user: user} do
       other_user = insert(:user)
 
       {:ok, activity} =

From a78a7ee455c4e8f4c2aab15a15626237b2b90399 Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Sat, 14 Sep 2019 10:50:08 +0000
Subject: [PATCH 5/6] Apply suggestion to
 test/web/mastodon_api/mastodon_api_controller_test.exs

---
 test/web/mastodon_api/mastodon_api_controller_test.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index 013a838b8..061c3a8ad 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -3856,7 +3856,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       assert id == other_user.id
     end
 
-    test "requires authentifucation for private posts", %{conn: conn, user: user} do
+    test "requires authentification for private posts", %{conn: conn, user: user} do
       other_user = insert(:user)
 
       {:ok, activity} =

From b870ae08fd19acd7c40e4353e657e6a1ed1b34c5 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Sat, 14 Sep 2019 19:31:20 +0700
Subject: [PATCH 6/6] Fix `Activity.all_by_actor_and_id/2` test

---
 test/activity_test.exs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/test/activity_test.exs b/test/activity_test.exs
index f9f789a76..275cab81e 100644
--- a/test/activity_test.exs
+++ b/test/activity_test.exs
@@ -213,7 +213,11 @@ defmodule Pleroma.ActivityTest do
 
     assert [] == Activity.all_by_actor_and_id(user, [])
 
-    assert [%Activity{id: ^id2}, %Activity{id: ^id1}] =
-             Activity.all_by_actor_and_id(user.ap_id, [id1, id2])
+    activities =
+      user.ap_id
+      |> Activity.all_by_actor_and_id([id1, id2])
+      |> Enum.sort(&(&1.id < &2.id))
+
+    assert [%Activity{id: ^id1}, %Activity{id: ^id2}] = activities
   end
 end