From 370e313e2df19e4579c154388336dd5e09bff7bf Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@FreeBSD.org>
Date: Sat, 2 May 2020 13:28:10 -0500
Subject: [PATCH 01/22] Only update follower/following stats for actor types of
 users and bots.

---
 lib/pleroma/web/activity_pub/activity_pub.ex | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 1f4a09370..31304c340 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1532,9 +1532,14 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp maybe_update_follow_information(data) do
     with {:enabled, true} <- {:enabled, Config.get([:instance, :external_user_synchronization])},
-         {:ok, info} <- fetch_follow_information_for_user(data) do
+         {:ok, info} <- fetch_follow_information_for_user(data),
+         {:ok, actor_type} <- Map.fetch(data, :actor_type) do
       info = Map.merge(data[:info] || %{}, info)
-      Map.put(data, :info, info)
+
+      cond do
+        actor_type in ["Person", "Service"] -> Map.put(data, :info, info)
+        true -> data
+      end
     else
       {:enabled, false} ->
         data

From ec24c70db80665aaaf4d7794ea62e9f9e6676bec Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 14:22:54 +0200
Subject: [PATCH 02/22] ActivityPub: Don't fetch `Application` follower counts.

---
 lib/pleroma/web/activity_pub/activity_pub.ex | 30 +++++++++++------
 test/web/activity_pub/activity_pub_test.exs  | 50 +++++++++++++++++++++++++++-
 2 files changed, 68 insertions(+), 12 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 31304c340..1c21d78af 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1530,26 +1530,34 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   defp normalize_counter(counter) when is_integer(counter), do: counter
   defp normalize_counter(_), do: 0
 
-  defp maybe_update_follow_information(data) do
+  def maybe_update_follow_information(user_data) do
     with {:enabled, true} <- {:enabled, Config.get([:instance, :external_user_synchronization])},
-         {:ok, info} <- fetch_follow_information_for_user(data),
-         {:ok, actor_type} <- Map.fetch(data, :actor_type) do
-      info = Map.merge(data[:info] || %{}, info)
+         {_, true} <- {:user_type_check, user_data[:type] in ["Person", "Service"]},
+         {_, true} <-
+           {:collections_available,
+            !!(user_data[:following_address] && user_data[:follower_address])},
+         {:ok, info} <-
+           fetch_follow_information_for_user(user_data) do
+      info = Map.merge(user_data[:info] || %{}, info)
 
-      cond do
-        actor_type in ["Person", "Service"] -> Map.put(data, :info, info)
-        true -> data
-      end
+      user_data
+      |> Map.put(:info, info)
     else
+      {:user_type_check, false} ->
+        user_data
+
+      {:collections_available, false} ->
+        user_data
+
       {:enabled, false} ->
-        data
+        user_data
 
       e ->
         Logger.error(
-          "Follower/Following counter update for #{data.ap_id} failed.\n" <> inspect(e)
+          "Follower/Following counter update for #{user_data.ap_id} failed.\n" <> inspect(e)
         )
 
-        data
+        user_data
     end
   end
 
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index edd7dfb22..84ead93bb 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -18,9 +18,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.Federator
 
+  import ExUnit.CaptureLog
+  import Mock
   import Pleroma.Factory
   import Tesla.Mock
-  import Mock
 
   setup do
     mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
@@ -2403,4 +2404,51 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
      u3: %{r1: r3_1.id, r2: r3_2.id},
      u4: %{r1: r4_1.id}}
   end
+
+  describe "maybe_update_follow_information/1" do
+    setup do
+      clear_config([:instance, :external_user_synchronization], true)
+
+      user = %{
+        local: false,
+        ap_id: "https://gensokyo.2hu/users/raymoo",
+        following_address: "https://gensokyo.2hu/users/following",
+        follower_address: "https://gensokyo.2hu/users/followers",
+        type: "Person"
+      }
+
+      %{user: user}
+    end
+
+    test "logs an error when it can't fetch the info", %{user: user} do
+      assert capture_log(fn ->
+               ActivityPub.maybe_update_follow_information(user)
+             end) =~ "Follower/Following counter update for #{user.ap_id} failed"
+    end
+
+    test "just returns the input if the user type is Application", %{
+      user: user
+    } do
+      user =
+        user
+        |> Map.put(:type, "Application")
+
+      refute capture_log(fn ->
+               assert ^user = ActivityPub.maybe_update_follow_information(user)
+             end) =~ "Follower/Following counter update for #{user.ap_id} failed"
+    end
+
+    test "it just returns the input if the user has no following/follower addresses", %{
+      user: user
+    } do
+      user =
+        user
+        |> Map.put(:following_address, nil)
+        |> Map.put(:follower_address, nil)
+
+      refute capture_log(fn ->
+               assert ^user = ActivityPub.maybe_update_follow_information(user)
+             end) =~ "Follower/Following counter update for #{user.ap_id} failed"
+    end
+  end
 end

From 13ab8defc0c5f9728c00ce49044dd60c02c7e81f Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 14:34:19 +0200
Subject: [PATCH 03/22] Pipeline: Move transctioning to common pipeline.

---
 lib/pleroma/web/activity_pub/pipeline.ex     | 23 +++++++++++++++++++----
 lib/pleroma/web/activity_pub/side_effects.ex | 13 ++++---------
 2 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/pipeline.ex b/lib/pleroma/web/activity_pub/pipeline.ex
index 7ccee54c9..d5abb7567 100644
--- a/lib/pleroma/web/activity_pub/pipeline.ex
+++ b/lib/pleroma/web/activity_pub/pipeline.ex
@@ -4,20 +4,33 @@
 
 defmodule Pleroma.Web.ActivityPub.Pipeline do
   alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.Repo
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.MRF
   alias Pleroma.Web.ActivityPub.ObjectValidator
   alias Pleroma.Web.ActivityPub.SideEffects
   alias Pleroma.Web.Federator
 
-  @spec common_pipeline(map(), keyword()) :: {:ok, Activity.t(), keyword()} | {:error, any()}
+  @spec common_pipeline(map(), keyword()) ::
+          {:ok, Activity.t() | Object.t(), keyword()} | {:error, any()}
   def common_pipeline(object, meta) do
+    case Repo.transaction(fn -> do_common_pipeline(object, meta) end) do
+      {:ok, value} ->
+        value
+
+      {:error, e} ->
+        {:error, e}
+    end
+  end
+
+  def do_common_pipeline(object, meta) do
     with {_, {:ok, validated_object, meta}} <-
            {:validate_object, ObjectValidator.validate(object, meta)},
          {_, {:ok, mrfd_object}} <- {:mrf_object, MRF.filter(validated_object)},
-         {_, {:ok, %Activity{} = activity, meta}} <-
+         {_, {:ok, activity, meta}} <-
            {:persist_object, ActivityPub.persist(mrfd_object, meta)},
-         {_, {:ok, %Activity{} = activity, meta}} <-
+         {_, {:ok, activity, meta}} <-
            {:execute_side_effects, SideEffects.handle(activity, meta)},
          {_, {:ok, _}} <- {:federation, maybe_federate(activity, meta)} do
       {:ok, activity, meta}
@@ -27,7 +40,9 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do
     end
   end
 
-  defp maybe_federate(activity, meta) do
+  defp maybe_federate(%Object{}, _), do: {:ok, :not_federated}
+
+  defp maybe_federate(%Activity{} = activity, meta) do
     with {:ok, local} <- Keyword.fetch(meta, :local) do
       if local do
         Federator.publish(activity)
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
index 5981e7545..6a8f1af96 100644
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -15,17 +15,12 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   # - Add like to object
   # - Set up notification
   def handle(%{data: %{"type" => "Like"}} = object, meta) do
-    {:ok, result} =
-      Pleroma.Repo.transaction(fn ->
-        liked_object = Object.get_by_ap_id(object.data["object"])
-        Utils.add_like_to_object(object, liked_object)
+    liked_object = Object.get_by_ap_id(object.data["object"])
+    Utils.add_like_to_object(object, liked_object)
 
-        Notification.create_notifications(object)
+    Notification.create_notifications(object)
 
-        {:ok, object, meta}
-      end)
-
-    result
+    {:ok, object, meta}
   end
 
   # Nothing to do

From 335aabc39c6384216d2eaa3036cea541141d8025 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 14:45:28 +0200
Subject: [PATCH 04/22] Transmogrifier tests: Extract like tests.

---
 test/support/factory.ex                            |  1 +
 .../transmogrifier/like_handling_test.exs          | 78 ++++++++++++++++++++++
 test/web/activity_pub/transmogrifier_test.exs      | 56 ----------------
 3 files changed, 79 insertions(+), 56 deletions(-)
 create mode 100644 test/web/activity_pub/transmogrifier/like_handling_test.exs

diff --git a/test/support/factory.ex b/test/support/factory.ex
index f0b797fd4..495764782 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -32,6 +32,7 @@ defmodule Pleroma.Factory do
       password_hash: Comeonin.Pbkdf2.hashpwsalt("test"),
       bio: sequence(:bio, &"Tester Number #{&1}"),
       last_digest_emailed_at: NaiveDateTime.utc_now(),
+      last_refreshed_at: NaiveDateTime.utc_now(),
       notification_settings: %Pleroma.User.NotificationSetting{}
     }
 
diff --git a/test/web/activity_pub/transmogrifier/like_handling_test.exs b/test/web/activity_pub/transmogrifier/like_handling_test.exs
new file mode 100644
index 000000000..54a5c1dbc
--- /dev/null
+++ b/test/web/activity_pub/transmogrifier/like_handling_test.exs
@@ -0,0 +1,78 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.Transmogrifier.LikeHandlingTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Activity
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.CommonAPI
+
+  import Pleroma.Factory
+
+  test "it works for incoming likes" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
+
+    data =
+      File.read!("test/fixtures/mastodon-like.json")
+      |> Poison.decode!()
+      |> Map.put("object", activity.data["object"])
+
+    _actor = insert(:user, ap_id: data["actor"], local: false)
+
+    {:ok, %Activity{data: data, local: false} = activity} = Transmogrifier.handle_incoming(data)
+
+    refute Enum.empty?(activity.recipients)
+
+    assert data["actor"] == "http://mastodon.example.org/users/admin"
+    assert data["type"] == "Like"
+    assert data["id"] == "http://mastodon.example.org/users/admin#likes/2"
+    assert data["object"] == activity.data["object"]
+  end
+
+  test "it works for incoming misskey likes, turning them into EmojiReacts" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
+
+    data =
+      File.read!("test/fixtures/misskey-like.json")
+      |> Poison.decode!()
+      |> Map.put("object", activity.data["object"])
+
+    _actor = insert(:user, ap_id: data["actor"], local: false)
+
+    {:ok, %Activity{data: activity_data, local: false}} = Transmogrifier.handle_incoming(data)
+
+    assert activity_data["actor"] == data["actor"]
+    assert activity_data["type"] == "EmojiReact"
+    assert activity_data["id"] == data["id"]
+    assert activity_data["object"] == activity.data["object"]
+    assert activity_data["content"] == "🍮"
+  end
+
+  test "it works for incoming misskey likes that contain unicode emojis, turning them into EmojiReacts" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
+
+    data =
+      File.read!("test/fixtures/misskey-like.json")
+      |> Poison.decode!()
+      |> Map.put("object", activity.data["object"])
+      |> Map.put("_misskey_reaction", "⭐")
+
+    _actor = insert(:user, ap_id: data["actor"], local: false)
+
+    {:ok, %Activity{data: activity_data, local: false}} = Transmogrifier.handle_incoming(data)
+
+    assert activity_data["actor"] == data["actor"]
+    assert activity_data["type"] == "EmojiReact"
+    assert activity_data["id"] == data["id"]
+    assert activity_data["object"] == activity.data["object"]
+    assert activity_data["content"] == "⭐"
+  end
+end
diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index 36e1e7bd1..23efa4be6 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -325,62 +325,6 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       assert object_data["cc"] == to
     end
 
-    test "it works for incoming likes" do
-      user = insert(:user)
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
-
-      data =
-        File.read!("test/fixtures/mastodon-like.json")
-        |> Poison.decode!()
-        |> Map.put("object", activity.data["object"])
-
-      {:ok, %Activity{data: data, local: false} = activity} = Transmogrifier.handle_incoming(data)
-
-      refute Enum.empty?(activity.recipients)
-
-      assert data["actor"] == "http://mastodon.example.org/users/admin"
-      assert data["type"] == "Like"
-      assert data["id"] == "http://mastodon.example.org/users/admin#likes/2"
-      assert data["object"] == activity.data["object"]
-    end
-
-    test "it works for incoming misskey likes, turning them into EmojiReacts" do
-      user = insert(:user)
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
-
-      data =
-        File.read!("test/fixtures/misskey-like.json")
-        |> Poison.decode!()
-        |> Map.put("object", activity.data["object"])
-
-      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
-
-      assert data["actor"] == data["actor"]
-      assert data["type"] == "EmojiReact"
-      assert data["id"] == data["id"]
-      assert data["object"] == activity.data["object"]
-      assert data["content"] == "🍮"
-    end
-
-    test "it works for incoming misskey likes that contain unicode emojis, turning them into EmojiReacts" do
-      user = insert(:user)
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})
-
-      data =
-        File.read!("test/fixtures/misskey-like.json")
-        |> Poison.decode!()
-        |> Map.put("object", activity.data["object"])
-        |> Map.put("_misskey_reaction", "⭐")
-
-      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
-
-      assert data["actor"] == data["actor"]
-      assert data["type"] == "EmojiReact"
-      assert data["id"] == data["id"]
-      assert data["object"] == activity.data["object"]
-      assert data["content"] == "⭐"
-    end
-
     test "it works for incoming emoji reactions" do
       user = insert(:user)
       {:ok, activity} = CommonAPI.post(user, %{"status" => "hello"})

From e03c301ebeea6687ee7f19d447232864b182d581 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 17:08:31 +0200
Subject: [PATCH 05/22] LikeValidator: Fix up missing recipients.

---
 .../object_validators/like_validator.ex            | 34 ++++++++++++++++++++--
 test/web/activity_pub/object_validator_test.exs    | 13 +++++++++
 2 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
index 49546ceaa..d9ee07995 100644
--- a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
   use Ecto.Schema
 
+  alias Pleroma.Object
   alias Pleroma.Web.ActivityPub.ObjectValidators.Types
   alias Pleroma.Web.ActivityPub.Utils
 
@@ -19,8 +20,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
     field(:object, Types.ObjectID)
     field(:actor, Types.ObjectID)
     field(:context, :string)
-    field(:to, {:array, :string})
-    field(:cc, {:array, :string})
+    field(:to, {:array, :string}, default: [])
+    field(:cc, {:array, :string}, default: [])
   end
 
   def cast_and_validate(data) do
@@ -31,7 +32,34 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
 
   def cast_data(data) do
     %__MODULE__{}
-    |> cast(data, [:id, :type, :object, :actor, :context, :to, :cc])
+    |> changeset(data)
+  end
+
+  def changeset(struct, data) do
+    struct
+    |> cast(data, __schema__(:fields))
+    |> fix_after_cast()
+  end
+
+  def fix_after_cast(cng) do
+    cng
+    |> fix_recipients()
+  end
+
+  def fix_recipients(cng) do
+    to = get_field(cng, :to) || []
+    cc = get_field(cng, :cc) || []
+    object = get_field(cng, :object)
+
+    with {[], []} <- {to, cc},
+         %Object{data: %{"actor" => actor}} <- Object.get_cached_by_ap_id(object),
+         {:ok, actor} <- Types.ObjectID.cast(actor) do
+      cng
+      |> put_change(:to, [actor])
+    else
+      _ ->
+        cng
+    end
   end
 
   def validate_data(data_cng) do
diff --git a/test/web/activity_pub/object_validator_test.exs b/test/web/activity_pub/object_validator_test.exs
index 3c5c3696e..9e9e41c6b 100644
--- a/test/web/activity_pub/object_validator_test.exs
+++ b/test/web/activity_pub/object_validator_test.exs
@@ -36,6 +36,19 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidatorTest do
       assert LikeValidator.cast_and_validate(valid_like).valid?
     end
 
+    test "sets the 'to' field to the object actor if no recipients are given", %{
+      valid_like: valid_like,
+      user: user
+    } do
+      without_recipients =
+        valid_like
+        |> Map.delete("to")
+
+      {:ok, object, _meta} = ObjectValidator.validate(without_recipients, [])
+
+      assert object["to"] == [user.ap_id]
+    end
+
     test "it errors when the actor is missing or not known", %{valid_like: valid_like} do
       without_actor = Map.delete(valid_like, "actor")
 

From 0f9bed022fab80f59353597dde82896ef954a678 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 17:18:17 +0200
Subject: [PATCH 06/22] LikeValidator: Fix up context.

---
 .../activity_pub/object_validators/like_validator.ex   | 18 ++++++++++++++++--
 test/web/activity_pub/object_validator_test.exs        | 13 +++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
index d9ee07995..1bce739bd 100644
--- a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
@@ -44,11 +44,25 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
   def fix_after_cast(cng) do
     cng
     |> fix_recipients()
+    |> fix_context()
+  end
+
+  def fix_context(cng) do
+    object = get_field(cng, :object)
+
+    with nil <- get_field(cng, :context),
+         %Object{data: %{"context" => context}} <- Object.get_cached_by_ap_id(object) do
+      cng
+      |> put_change(:context, context)
+    else
+      _ ->
+        cng
+    end
   end
 
   def fix_recipients(cng) do
-    to = get_field(cng, :to) || []
-    cc = get_field(cng, :cc) || []
+    to = get_field(cng, :to)
+    cc = get_field(cng, :cc)
     object = get_field(cng, :object)
 
     with {[], []} <- {to, cc},
diff --git a/test/web/activity_pub/object_validator_test.exs b/test/web/activity_pub/object_validator_test.exs
index 9e9e41c6b..93989e28a 100644
--- a/test/web/activity_pub/object_validator_test.exs
+++ b/test/web/activity_pub/object_validator_test.exs
@@ -49,6 +49,19 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidatorTest do
       assert object["to"] == [user.ap_id]
     end
 
+    test "sets the context field to the context of the object if no context is given", %{
+      valid_like: valid_like,
+      post_activity: post_activity
+    } do
+      without_context =
+        valid_like
+        |> Map.delete("context")
+
+      {:ok, object, _meta} = ObjectValidator.validate(without_context, [])
+
+      assert object["context"] == post_activity.data["context"]
+    end
+
     test "it errors when the actor is missing or not known", %{valid_like: valid_like} do
       without_actor = Map.delete(valid_like, "actor")
 

From 3559dd108518dfa740878cecdc86c0357b265857 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 4 May 2020 17:18:38 +0200
Subject: [PATCH 07/22] Transmogrifier: Rely on LikeValidator.

---
 lib/pleroma/web/activity_pub/transmogrifier.ex | 55 ++------------------------
 1 file changed, 3 insertions(+), 52 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index c966ec960..581e7040b 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -15,7 +15,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.ObjectValidator
-  alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
   alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
@@ -658,16 +657,9 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   end
 
   def handle_incoming(%{"type" => "Like"} = data, _options) do
-    with {_, {:ok, cast_data_sym}} <-
-           {:casting_data,
-            data |> LikeValidator.cast_data() |> Ecto.Changeset.apply_action(:insert)},
-         cast_data = ObjectValidator.stringify_keys(Map.from_struct(cast_data_sym)),
-         :ok <- ObjectValidator.fetch_actor_and_object(cast_data),
-         {_, {:ok, cast_data}} <- {:ensure_context_presence, ensure_context_presence(cast_data)},
-         {_, {:ok, cast_data}} <-
-           {:ensure_recipients_presence, ensure_recipients_presence(cast_data)},
-         {_, {:ok, activity, _meta}} <-
-           {:common_pipeline, Pipeline.common_pipeline(cast_data, local: false)} do
+    with :ok <- ObjectValidator.fetch_actor_and_object(data),
+         {:ok, activity, _meta} <-
+           Pipeline.common_pipeline(data, local: false) do
       {:ok, activity}
     else
       e -> {:error, e}
@@ -1296,45 +1288,4 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def maybe_fix_user_url(data), do: data
 
   def maybe_fix_user_object(data), do: maybe_fix_user_url(data)
-
-  defp ensure_context_presence(%{"context" => context} = data) when is_binary(context),
-    do: {:ok, data}
-
-  defp ensure_context_presence(%{"object" => object} = data) when is_binary(object) do
-    with %{data: %{"context" => context}} when is_binary(context) <- Object.normalize(object) do
-      {:ok, Map.put(data, "context", context)}
-    else
-      _ ->
-        {:error, :no_context}
-    end
-  end
-
-  defp ensure_context_presence(_) do
-    {:error, :no_context}
-  end
-
-  defp ensure_recipients_presence(%{"to" => [_ | _], "cc" => [_ | _]} = data),
-    do: {:ok, data}
-
-  defp ensure_recipients_presence(%{"object" => object} = data) do
-    case Object.normalize(object) do
-      %{data: %{"actor" => actor}} ->
-        data =
-          data
-          |> Map.put("to", [actor])
-          |> Map.put("cc", data["cc"] || [])
-
-        {:ok, data}
-
-      nil ->
-        {:error, :no_object}
-
-      _ ->
-        {:error, :no_actor}
-    end
-  end
-
-  defp ensure_recipients_presence(_) do
-    {:error, :no_object}
-  end
 end

From d08c63500b5deca268ebc24833be4cb3279bdaaa Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 4 May 2020 20:16:18 +0400
Subject: [PATCH 08/22] Ignore unexpected query params

---
 lib/pleroma/web/api_spec/cast_and_validate.ex      | 120 +++++++++++++++++++++
 .../mastodon_api/controllers/account_controller.ex |   2 +-
 .../web/mastodon_api/controllers/app_controller.ex |   2 +-
 .../controllers/custom_emoji_controller.ex         |   2 +-
 .../controllers/domain_block_controller.ex         |   2 +-
 .../controllers/notification_controller.ex         |   2 +-
 .../mastodon_api/controllers/report_controller.ex  |   2 +-
 7 files changed, 126 insertions(+), 6 deletions(-)
 create mode 100644 lib/pleroma/web/api_spec/cast_and_validate.ex

diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
new file mode 100644
index 000000000..f36cf7a55
--- /dev/null
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -0,0 +1,120 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.CastAndValidate do
+  @moduledoc """
+  This plug is based on [`OpenApiSpex.Plug.CastAndValidate`]
+  (https://github.com/open-api-spex/open_api_spex/blob/master/lib/open_api_spex/plug/cast_and_validate.ex).
+  The main difference is ignoring unexpected query params
+  instead of throwing an error. Also, the default rendering
+  error module is `Pleroma.Web.ApiSpec.RenderError`.
+  """
+
+  @behaviour Plug
+
+  alias Plug.Conn
+
+  @impl Plug
+  def init(opts) do
+    opts
+    |> Map.new()
+    |> Map.put_new(:render_error, Pleroma.Web.ApiSpec.RenderError)
+  end
+
+  @impl Plug
+  def call(%{private: %{open_api_spex: private_data}} = conn, %{
+        operation_id: operation_id,
+        render_error: render_error
+      }) do
+    spec = private_data.spec
+    operation = private_data.operation_lookup[operation_id]
+
+    content_type =
+      case Conn.get_req_header(conn, "content-type") do
+        [header_value | _] ->
+          header_value
+          |> String.split(";")
+          |> List.first()
+
+        _ ->
+          nil
+      end
+
+    private_data = Map.put(private_data, :operation_id, operation_id)
+    conn = Conn.put_private(conn, :open_api_spex, private_data)
+
+    case cast_and_validate(spec, operation, conn, content_type) do
+      {:ok, conn} ->
+        conn
+
+      {:error, reason} ->
+        opts = render_error.init(reason)
+
+        conn
+        |> render_error.call(opts)
+        |> Plug.Conn.halt()
+    end
+  end
+
+  def call(
+        %{
+          private: %{
+            phoenix_controller: controller,
+            phoenix_action: action,
+            open_api_spex: private_data
+          }
+        } = conn,
+        opts
+      ) do
+    operation =
+      case private_data.operation_lookup[{controller, action}] do
+        nil ->
+          operation_id = controller.open_api_operation(action).operationId
+          operation = private_data.operation_lookup[operation_id]
+
+          operation_lookup =
+            private_data.operation_lookup
+            |> Map.put({controller, action}, operation)
+
+          OpenApiSpex.Plug.Cache.adapter().put(
+            private_data.spec_module,
+            {private_data.spec, operation_lookup}
+          )
+
+          operation
+
+        operation ->
+          operation
+      end
+
+    if operation.operationId do
+      call(conn, Map.put(opts, :operation_id, operation.operationId))
+    else
+      raise "operationId was not found in action API spec"
+    end
+  end
+
+  def call(conn, opts), do: OpenApiSpex.Plug.CastAndValidate.call(conn, opts)
+
+  defp cast_and_validate(spec, operation, conn, content_type) do
+    case OpenApiSpex.cast_and_validate(spec, operation, conn, content_type) do
+      {:ok, conn} ->
+        {:ok, conn}
+
+      # Remove unexpected query params and cast/validate again
+      {:error, errors} ->
+        query_params =
+          Enum.reduce(errors, conn.query_params, fn
+            %{reason: :unexpected_field, name: name, path: [name]}, params ->
+              Map.delete(params, name)
+
+            _, params ->
+              params
+          end)
+
+        conn = %Conn{conn | query_params: query_params}
+        OpenApiSpex.cast_and_validate(spec, operation, conn, content_type)
+    end
+  end
+end
diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index 61b0e2f63..8458cbdd5 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -27,7 +27,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Web.TwitterAPI.TwitterAPI
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(:skip_plug, [OAuthScopesPlug, EnsurePublicOrAuthenticatedPlug] when action == :create)
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
index 408e11474..a516b6c20 100644
--- a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
@@ -22,7 +22,7 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
 
   plug(OAuthScopesPlug, %{scopes: ["read"]} when action == :verify_credentials)
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   @local_mastodon_name "Mastodon-Local"
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/custom_emoji_controller.ex b/lib/pleroma/web/mastodon_api/controllers/custom_emoji_controller.ex
index 000ad743f..c5f47c5df 100644
--- a/lib/pleroma/web/mastodon_api/controllers/custom_emoji_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/custom_emoji_controller.ex
@@ -5,7 +5,7 @@
 defmodule Pleroma.Web.MastodonAPI.CustomEmojiController do
   use Pleroma.Web, :controller
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(
     :skip_plug,
diff --git a/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex b/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex
index c4fa383f2..825b231ab 100644
--- a/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex
@@ -8,7 +8,7 @@ defmodule Pleroma.Web.MastodonAPI.DomainBlockController do
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.User
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.DomainBlockOperation
 
   plug(
diff --git a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
index a14c86893..596b85617 100644
--- a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
@@ -13,7 +13,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationController do
 
   @oauth_read_actions [:show, :index]
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(
     OAuthScopesPlug,
diff --git a/lib/pleroma/web/mastodon_api/controllers/report_controller.ex b/lib/pleroma/web/mastodon_api/controllers/report_controller.ex
index f65c5c62b..405167108 100644
--- a/lib/pleroma/web/mastodon_api/controllers/report_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/report_controller.ex
@@ -9,7 +9,7 @@ defmodule Pleroma.Web.MastodonAPI.ReportController do
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["write:reports"]} when action == :create)
 
   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ReportOperation

From bfbff7d82673d6128a18e73dcc91f70ee669c2ac Mon Sep 17 00:00:00 2001
From: minibikini <egor@kislitsyn.com>
Date: Mon, 4 May 2020 16:38:23 +0000
Subject: [PATCH 09/22] Apply suggestion to
 lib/pleroma/web/api_spec/cast_and_validate.ex

---
 lib/pleroma/web/api_spec/cast_and_validate.ex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
index f36cf7a55..cd02403c1 100644
--- a/lib/pleroma/web/api_spec/cast_and_validate.ex
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -1,5 +1,6 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2019-2020 Moxley Stratton, Mike Buhot <https://github.com/open-api-spex/open_api_spex>, MPL-2.0
+# Copyright © 2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ApiSpec.CastAndValidate do

From 4b9ab67aa8bdf7fdf7390080932fee2e5879a5e4 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 4 May 2020 21:46:25 +0400
Subject: [PATCH 10/22] Ignore unexpected ENUM values in query string

---
 lib/pleroma/web/api_spec/cast_and_validate.ex | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
index cd02403c1..b94517c52 100644
--- a/lib/pleroma/web/api_spec/cast_and_validate.ex
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -110,6 +110,10 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
             %{reason: :unexpected_field, name: name, path: [name]}, params ->
               Map.delete(params, name)
 
+            %{reason: :invalid_enum, name: nil, path: path, value: value}, params ->
+              path = path |> Enum.reverse() |> tl() |> Enum.reverse() |> list_items_to_string()
+              update_in(params, path, &List.delete(&1, value))
+
             _, params ->
               params
           end)
@@ -118,4 +122,11 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
         OpenApiSpex.cast_and_validate(spec, operation, conn, content_type)
     end
   end
+
+  defp list_items_to_string(list) do
+    Enum.map(list, fn
+      i when is_atom(i) -> to_string(i)
+      i -> i
+    end)
+  end
 end

From f070b5569ca0eafdca79f1f3e3b6b5025f3f8fc9 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 4 May 2020 22:33:05 +0400
Subject: [PATCH 11/22] Add a config option to enable strict validation

---
 config/config.exs                             |  2 ++
 lib/pleroma/web/api_spec/cast_and_validate.ex | 17 ++++++++++++-----
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index a6c6d6f99..ca9bbab64 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -653,6 +653,8 @@ config :pleroma, :restrict_unauthenticated,
   profiles: %{local: false, remote: false},
   activities: %{local: false, remote: false}
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: false
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env()}.exs"
diff --git a/lib/pleroma/web/api_spec/cast_and_validate.ex b/lib/pleroma/web/api_spec/cast_and_validate.ex
index b94517c52..bd9026237 100644
--- a/lib/pleroma/web/api_spec/cast_and_validate.ex
+++ b/lib/pleroma/web/api_spec/cast_and_validate.ex
@@ -7,9 +7,10 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
   @moduledoc """
   This plug is based on [`OpenApiSpex.Plug.CastAndValidate`]
   (https://github.com/open-api-spex/open_api_spex/blob/master/lib/open_api_spex/plug/cast_and_validate.ex).
-  The main difference is ignoring unexpected query params
-  instead of throwing an error. Also, the default rendering
-  error module is `Pleroma.Web.ApiSpec.RenderError`.
+  The main difference is ignoring unexpected query params instead of throwing
+  an error and a config option (`[Pleroma.Web.ApiSpec.CastAndValidate, :strict]`)
+  to disable this behavior. Also, the default rendering error module
+  is `Pleroma.Web.ApiSpec.RenderError`.
   """
 
   @behaviour Plug
@@ -45,7 +46,7 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
     private_data = Map.put(private_data, :operation_id, operation_id)
     conn = Conn.put_private(conn, :open_api_spex, private_data)
 
-    case cast_and_validate(spec, operation, conn, content_type) do
+    case cast_and_validate(spec, operation, conn, content_type, strict?()) do
       {:ok, conn} ->
         conn
 
@@ -98,7 +99,11 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
 
   def call(conn, opts), do: OpenApiSpex.Plug.CastAndValidate.call(conn, opts)
 
-  defp cast_and_validate(spec, operation, conn, content_type) do
+  defp cast_and_validate(spec, operation, conn, content_type, true = _strict) do
+    OpenApiSpex.cast_and_validate(spec, operation, conn, content_type)
+  end
+
+  defp cast_and_validate(spec, operation, conn, content_type, false = _strict) do
     case OpenApiSpex.cast_and_validate(spec, operation, conn, content_type) do
       {:ok, conn} ->
         {:ok, conn}
@@ -129,4 +134,6 @@ defmodule Pleroma.Web.ApiSpec.CastAndValidate do
       i -> i
     end)
   end
+
+  defp strict?, do: Pleroma.Config.get([__MODULE__, :strict], false)
 end

From e55fd530bc9a6ab42e475efe689e239963906928 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 4 May 2020 22:33:34 +0400
Subject: [PATCH 12/22] Render better errors for ENUM validation

---
 lib/pleroma/web/api_spec/render_error.ex | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/pleroma/web/api_spec/render_error.ex b/lib/pleroma/web/api_spec/render_error.ex
index b5877ca9c..d476b8ef3 100644
--- a/lib/pleroma/web/api_spec/render_error.ex
+++ b/lib/pleroma/web/api_spec/render_error.ex
@@ -17,6 +17,9 @@ defmodule Pleroma.Web.ApiSpec.RenderError do
   def call(conn, errors) do
     errors =
       Enum.map(errors, fn
+        %{name: nil, reason: :invalid_enum} = err ->
+          %OpenApiSpex.Cast.Error{err | name: err.value}
+
         %{name: nil} = err ->
           %OpenApiSpex.Cast.Error{err | name: List.last(err.path)}
 

From 1cb89aac1eef7711aa7950fe03e02e24bc665317 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Mon, 4 May 2020 22:35:28 +0400
Subject: [PATCH 13/22] Enable strict validation mode in dev and test
 environments

---
 config/dev.exs  | 2 ++
 config/test.exs | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/config/dev.exs b/config/dev.exs
index 7e1e3b4be..4faaeff5b 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -52,6 +52,8 @@ config :pleroma, Pleroma.Repo,
   hostname: "localhost",
   pool_size: 10
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
+
 if File.exists?("./config/dev.secret.exs") do
   import_config "dev.secret.exs"
 else
diff --git a/config/test.exs b/config/test.exs
index 040e67e4a..cbf775109 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -96,6 +96,8 @@ config :pleroma, Pleroma.Emails.NewUsersDigestEmail, enabled: true
 
 config :pleroma, Pleroma.Plugs.RemoteIp, enabled: false
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
+
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"
 else

From 2ab52d52248224c61b857f2fc54adff80343e3c0 Mon Sep 17 00:00:00 2001
From: Angelina Filippova <linakirsanova@gmail.com>
Date: Mon, 4 May 2020 22:41:14 +0300
Subject: [PATCH 14/22] Fix inconsistency in language for activating settings

---
 config/description.exs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config/description.exs b/config/description.exs
index 7fac1e561..62f17c92f 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -2247,6 +2247,7 @@ config :pleroma, :config_description, [
         children: [
           %{
             key: :active,
+            label: "Enabled",
             type: :boolean,
             description: "Globally enable or disable digest emails"
           },

From 8bed6ea922dbc1cfb8166fea6ce344d3618b3d52 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Tue, 5 May 2020 09:25:09 +0200
Subject: [PATCH 15/22] User, Webfinger: Remove OStatus vestiges

Mainly the `magic_key` field
---
 lib/pleroma/user.ex                                |  2 --
 lib/pleroma/web/web_finger/web_finger.ex           | 39 +---------------------
 .../20200505072231_remove_magic_key_field.exs      |  9 +++++
 test/web/web_finger/web_finger_test.exs            |  4 +--
 4 files changed, 12 insertions(+), 42 deletions(-)
 create mode 100644 priv/repo/migrations/20200505072231_remove_magic_key_field.exs

diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 99358ddaf..2c343eb22 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -113,7 +113,6 @@ defmodule Pleroma.User do
     field(:is_admin, :boolean, default: false)
     field(:show_role, :boolean, default: true)
     field(:settings, :map, default: nil)
-    field(:magic_key, :string, default: nil)
     field(:uri, Types.Uri, default: nil)
     field(:hide_followers_count, :boolean, default: false)
     field(:hide_follows_count, :boolean, default: false)
@@ -387,7 +386,6 @@ defmodule Pleroma.User do
         :banner,
         :locked,
         :last_refreshed_at,
-        :magic_key,
         :uri,
         :follower_address,
         :following_address,
diff --git a/lib/pleroma/web/web_finger/web_finger.ex b/lib/pleroma/web/web_finger/web_finger.ex
index 7ffd0e51b..b26453828 100644
--- a/lib/pleroma/web/web_finger/web_finger.ex
+++ b/lib/pleroma/web/web_finger/web_finger.ex
@@ -86,53 +86,19 @@ defmodule Pleroma.Web.WebFinger do
     |> XmlBuilder.to_doc()
   end
 
-  defp get_magic_key("data:application/magic-public-key," <> magic_key) do
-    {:ok, magic_key}
-  end
-
-  defp get_magic_key(nil) do
-    Logger.debug("Undefined magic key.")
-    {:ok, nil}
-  end
-
-  defp get_magic_key(_) do
-    {:error, "Missing magic key data."}
-  end
-
   defp webfinger_from_xml(doc) do
-    with magic_key <- XML.string_from_xpath(~s{//Link[@rel="magic-public-key"]/@href}, doc),
-         {:ok, magic_key} <- get_magic_key(magic_key),
-         topic <-
-           XML.string_from_xpath(
-             ~s{//Link[@rel="http://schemas.google.com/g/2010#updates-from"]/@href},
-             doc
-           ),
-         subject <- XML.string_from_xpath("//Subject", doc),
-         subscribe_address <-
-           XML.string_from_xpath(
-             ~s{//Link[@rel="http://ostatus.org/schema/1.0/subscribe"]/@template},
-             doc
-           ),
+    with subject <- XML.string_from_xpath("//Subject", doc),
          ap_id <-
            XML.string_from_xpath(
              ~s{//Link[@rel="self" and @type="application/activity+json"]/@href},
              doc
            ) do
       data = %{
-        "magic_key" => magic_key,
-        "topic" => topic,
         "subject" => subject,
-        "subscribe_address" => subscribe_address,
         "ap_id" => ap_id
       }
 
       {:ok, data}
-    else
-      {:error, e} ->
-        {:error, e}
-
-      e ->
-        {:error, e}
     end
   end
 
@@ -146,9 +112,6 @@ defmodule Pleroma.Web.WebFinger do
           {"application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"", "self"} ->
             Map.put(data, "ap_id", link["href"])
 
-          {_, "http://ostatus.org/schema/1.0/subscribe"} ->
-            Map.put(data, "subscribe_address", link["template"])
-
           _ ->
             Logger.debug("Unhandled type: #{inspect(link["type"])}")
             data
diff --git a/priv/repo/migrations/20200505072231_remove_magic_key_field.exs b/priv/repo/migrations/20200505072231_remove_magic_key_field.exs
new file mode 100644
index 000000000..2635e671b
--- /dev/null
+++ b/priv/repo/migrations/20200505072231_remove_magic_key_field.exs
@@ -0,0 +1,9 @@
+defmodule Pleroma.Repo.Migrations.RemoveMagicKeyField do
+  use Ecto.Migration
+
+  def change do
+    alter table(:users) do
+      remove(:magic_key, :string)
+    end
+  end
+end
diff --git a/test/web/web_finger/web_finger_test.exs b/test/web/web_finger/web_finger_test.exs
index 4b4282727..ce17f83d6 100644
--- a/test/web/web_finger/web_finger_test.exs
+++ b/test/web/web_finger/web_finger_test.exs
@@ -67,10 +67,10 @@ defmodule Pleroma.Web.WebFingerTest do
       assert data["magic_key"] == nil
       assert data["salmon"] == nil
 
-      assert data["topic"] == "https://mstdn.jp/users/kPherox.atom"
+      assert data["topic"] == nil
       assert data["subject"] == "acct:kPherox@mstdn.jp"
       assert data["ap_id"] == "https://mstdn.jp/users/kPherox"
-      assert data["subscribe_address"] == "https://mstdn.jp/authorize_interaction?acct={uri}"
+      assert data["subscribe_address"] == nil
     end
 
     test "it works for friendica" do

From f897da21158796eb3962e50add312d62165160fc Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Tue, 5 May 2020 09:36:38 +0200
Subject: [PATCH 16/22] WebFinger: Add back in subscribe_address.

It's used for remote following.
---
 lib/pleroma/web/web_finger/web_finger.ex | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/pleroma/web/web_finger/web_finger.ex b/lib/pleroma/web/web_finger/web_finger.ex
index b26453828..d0775fa28 100644
--- a/lib/pleroma/web/web_finger/web_finger.ex
+++ b/lib/pleroma/web/web_finger/web_finger.ex
@@ -88,6 +88,11 @@ defmodule Pleroma.Web.WebFinger do
 
   defp webfinger_from_xml(doc) do
     with subject <- XML.string_from_xpath("//Subject", doc),
+         subscribe_address <-
+           XML.string_from_xpath(
+             ~s{//Link[@rel="http://ostatus.org/schema/1.0/subscribe"]/@template},
+             doc
+           ),
          ap_id <-
            XML.string_from_xpath(
              ~s{//Link[@rel="self" and @type="application/activity+json"]/@href},
@@ -95,6 +100,7 @@ defmodule Pleroma.Web.WebFinger do
            ) do
       data = %{
         "subject" => subject,
+        "subscribe_address" => subscribe_address,
         "ap_id" => ap_id
       }
 

From 6a2905ccf08f89bd988b1bcd0788566930fbf17e Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Tue, 5 May 2020 09:55:33 +0200
Subject: [PATCH 17/22] WebFinger Test: Add back test.

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

diff --git a/test/web/web_finger/web_finger_test.exs b/test/web/web_finger/web_finger_test.exs
index ce17f83d6..f4884e0a2 100644
--- a/test/web/web_finger/web_finger_test.exs
+++ b/test/web/web_finger/web_finger_test.exs
@@ -70,7 +70,7 @@ defmodule Pleroma.Web.WebFingerTest do
       assert data["topic"] == nil
       assert data["subject"] == "acct:kPherox@mstdn.jp"
       assert data["ap_id"] == "https://mstdn.jp/users/kPherox"
-      assert data["subscribe_address"] == nil
+      assert data["subscribe_address"] == "https://mstdn.jp/authorize_interaction?acct={uri}"
     end
 
     test "it works for friendica" do

From cc922e7d8ccbf22a0f7e0898a6ff4639123f0c7f Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Tue, 5 May 2020 14:44:29 +0400
Subject: [PATCH 18/22] Document configuration for
 Pleroma.Web.ApiSpec.CastAndValidate

---
 config/description.exs           | 14 ++++++++++++++
 docs/configuration/cheatsheet.md |  6 +++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/config/description.exs b/config/description.exs
index 9d8e3b93c..72bb4d436 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -3194,5 +3194,19 @@ config :pleroma, :config_description, [
         ]
       }
     ]
+  },
+  %{
+    group: :pleroma,
+    key: Pleroma.Web.ApiSpec.CastAndValidate,
+    type: :group,
+    children: [
+      %{
+        key: :strict,
+        type: :boolean,
+        description:
+          "Enables strict input validation (useful in development, not recommended in production)",
+        suggestions: [false]
+      }
+    ]
   }
 ]
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 681ab6b93..705c4c15e 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -924,4 +924,8 @@ Restrict access for unauthenticated users to timelines (public and federate), us
   * `remote`
 * `activities` - statuses
   * `local`
-  * `remote`
\ No newline at end of file
+  * `remote`
+
+## Pleroma.Web.ApiSpec.CastAndValidate
+
+* `:strict` a boolean, enables strict input validation (useful in development, not recommended in production). Defaults to `false`.

From d20152700470c9b84a9404193ff08dd6d90b97a3 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Tue, 5 May 2020 11:17:44 +0000
Subject: [PATCH 19/22] Apply suggestion to
 lib/pleroma/web/web_finger/web_finger.ex

---
 lib/pleroma/web/web_finger/web_finger.ex | 34 +++++++++++++++-----------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/lib/pleroma/web/web_finger/web_finger.ex b/lib/pleroma/web/web_finger/web_finger.ex
index d0775fa28..84ece1be2 100644
--- a/lib/pleroma/web/web_finger/web_finger.ex
+++ b/lib/pleroma/web/web_finger/web_finger.ex
@@ -87,25 +87,23 @@ defmodule Pleroma.Web.WebFinger do
   end
 
   defp webfinger_from_xml(doc) do
-    with subject <- XML.string_from_xpath("//Subject", doc),
-         subscribe_address <-
-           XML.string_from_xpath(
-             ~s{//Link[@rel="http://ostatus.org/schema/1.0/subscribe"]/@template},
-             doc
-           ),
-         ap_id <-
-           XML.string_from_xpath(
-             ~s{//Link[@rel="self" and @type="application/activity+json"]/@href},
-             doc
-           ) do
-      data = %{
-        "subject" => subject,
-        "subscribe_address" => subscribe_address,
-        "ap_id" => ap_id
-      }
+    subject = XML.string_from_xpath("//Subject", doc)
 
-      {:ok, data}
-    end
+    subscribe_address =
+      ~s{//Link[@rel="http://ostatus.org/schema/1.0/subscribe"]/@template}
+      |> XML.string_from_xpath(doc)
+
+    ap_id =
+      ~s{//Link[@rel="self" and @type="application/activity+json"]/@href}
+      |> XML.string_from_xpath(doc)
+
+    data = %{
+      "subject" => subject,
+      "subscribe_address" => subscribe_address,
+      "ap_id" => ap_id
+    }
+
+    {:ok, data}
   end
 
   defp webfinger_from_json(doc) do

From e7d8ab8303cb69682a75c30a356572a75deb9837 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Tue, 5 May 2020 16:08:44 +0300
Subject: [PATCH 20/22] admin_api fetch status by id

---
 CHANGELOG.md                                      |  1 +
 docs/API/admin_api.md                             | 11 +++++++++++
 lib/pleroma/web/admin_api/admin_api_controller.ex | 12 +++++++++++-
 lib/pleroma/web/router.ex                         |  1 +
 test/web/admin_api/admin_api_controller_test.exs  | 19 +++++++++++++++++++
 5 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 522285efe..114bfac4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Mastodon API: Added `/api/v1/notifications/:id/dismiss` endpoint.
 - Mastodon API: Add support for filtering replies in public and home timelines
 - Admin API: endpoints for create/update/delete OAuth Apps.
+- Admin API: endpoint for status view.
 </details>
 
 ### Fixed
diff --git a/docs/API/admin_api.md b/docs/API/admin_api.md
index 6202c5a1a..23af08961 100644
--- a/docs/API/admin_api.md
+++ b/docs/API/admin_api.md
@@ -755,6 +755,17 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
     - 400 Bad Request `"Invalid parameters"` when `status` is missing
   - On success: `204`, empty response
 
+## `GET /api/pleroma/admin/statuses/:id`
+
+### Show status by id
+
+- Params:
+  - `id`: required, status id
+- Response:
+  - On failure:
+    - 404 Not Found `"Not Found"`
+  - On success: JSON, Mastodon Status entity
+
 ## `PUT /api/pleroma/admin/statuses/:id`
 
 ### Change the scope of an individual reported status
diff --git a/lib/pleroma/web/admin_api/admin_api_controller.ex b/lib/pleroma/web/admin_api/admin_api_controller.ex
index 816c11e01..ac661e515 100644
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@@ -93,7 +93,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:statuses"], admin: true}
-    when action in [:list_statuses, :list_user_statuses, :list_instance_statuses]
+    when action in [:list_statuses, :list_user_statuses, :list_instance_statuses, :status_show]
   )
 
   plug(
@@ -837,6 +837,16 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     |> render("index.json", %{activities: activities, as: :activity, skip_relationships: false})
   end
 
+  def status_show(conn, %{"id" => id}) do
+    with %Activity{} = activity <- Activity.get_by_id(id) do
+      conn
+      |> put_view(StatusView)
+      |> render("show.json", %{activity: activity})
+    else
+      _ -> errors(conn, {:error, :not_found})
+    end
+  end
+
   def status_update(%{assigns: %{user: admin}} = conn, %{"id" => id} = params) do
     with {:ok, activity} <- CommonAPI.update_activity_scope(id, params) do
       {:ok, sensitive} = Ecto.Type.cast(:boolean, params["sensitive"])
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 5b00243e9..ef2239d59 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -188,6 +188,7 @@ defmodule Pleroma.Web.Router do
     post("/reports/:id/notes", AdminAPIController, :report_notes_create)
     delete("/reports/:report_id/notes/:id", AdminAPIController, :report_notes_delete)
 
+    get("/statuses/:id", AdminAPIController, :status_show)
     put("/statuses/:id", AdminAPIController, :status_update)
     delete("/statuses/:id", AdminAPIController, :status_delete)
     get("/statuses", AdminAPIController, :list_statuses)
diff --git a/test/web/admin_api/admin_api_controller_test.exs b/test/web/admin_api/admin_api_controller_test.exs
index 1862a9589..c3f3ad051 100644
--- a/test/web/admin_api/admin_api_controller_test.exs
+++ b/test/web/admin_api/admin_api_controller_test.exs
@@ -1620,6 +1620,25 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
     end
   end
 
+  describe "GET /api/pleroma/admin/statuses/:id" do
+    test "not found", %{conn: conn} do
+      assert conn
+             |> get("/api/pleroma/admin/statuses/not_found")
+             |> json_response(:not_found)
+    end
+
+    test "shows activity", %{conn: conn} do
+      activity = insert(:note_activity)
+
+      response =
+        conn
+        |> get("/api/pleroma/admin/statuses/#{activity.id}")
+        |> json_response(200)
+
+      assert response["id"] == activity.id
+    end
+  end
+
   describe "PUT /api/pleroma/admin/statuses/:id" do
     setup do
       activity = insert(:note_activity)

From 6ba25d11973e56008e5d674313421197ff418d6d Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Tue, 5 May 2020 23:19:16 +0400
Subject: [PATCH 21/22] Add Attachment schema

---
 lib/pleroma/web/api_spec/schemas/attachment.ex     | 68 ++++++++++++++++++++++
 .../web/api_spec/schemas/scheduled_status.ex       | 53 +++++++++++++++++
 lib/pleroma/web/api_spec/schemas/status.ex         | 18 +-----
 3 files changed, 123 insertions(+), 16 deletions(-)
 create mode 100644 lib/pleroma/web/api_spec/schemas/attachment.ex
 create mode 100644 lib/pleroma/web/api_spec/schemas/scheduled_status.ex

diff --git a/lib/pleroma/web/api_spec/schemas/attachment.ex b/lib/pleroma/web/api_spec/schemas/attachment.ex
new file mode 100644
index 000000000..c146c416e
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/attachment.ex
@@ -0,0 +1,68 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.Attachment do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "Attachment",
+    description: "Represents a file or media attachment that can be added to a status.",
+    type: :object,
+    requried: [:id, :url, :preview_url],
+    properties: %{
+      id: %Schema{type: :string},
+      url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "The location of the original full-size attachment"
+      },
+      remote_url: %Schema{
+        type: :string,
+        format: :uri,
+        description:
+          "The location of the full-size original attachment on the remote website. String (URL), or null if the attachment is local",
+        nullable: true
+      },
+      preview_url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "The location of a scaled-down preview of the attachment"
+      },
+      text_url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "A shorter URL for the attachment"
+      },
+      description: %Schema{
+        type: :string,
+        nullable: true,
+        description:
+          "Alternate text that describes what is in the media attachment, to be used for the visually impaired or when media attachments do not load"
+      },
+      type: %Schema{
+        type: :string,
+        enum: ["image", "video", "audio", "unknown"],
+        description: "The type of the attachment"
+      },
+      pleroma: %Schema{
+        type: :object,
+        properties: %{
+          mime_type: %Schema{type: :string, description: "mime type of the attachment"}
+        }
+      }
+    },
+    example: %{
+      id: "1638338801",
+      type: "image",
+      url: "someurl",
+      remote_url: "someurl",
+      preview_url: "someurl",
+      text_url: "someurl",
+      description: nil,
+      pleroma: %{mime_type: "image/png"}
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/scheduled_status.ex b/lib/pleroma/web/api_spec/schemas/scheduled_status.ex
new file mode 100644
index 000000000..f0bc4ee3c
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/scheduled_status.ex
@@ -0,0 +1,53 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.ScheduledStatus do
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
+  alias Pleroma.Web.ApiSpec.Schemas.Poll
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ScheduledStatus",
+    description: "Represents a status that will be published at a future scheduled date.",
+    type: :object,
+    required: [:id, :scheduled_at, :params],
+    properties: %{
+      id: %Schema{type: :string},
+      scheduled_at: %Schema{type: :string, format: :"date-time"},
+      media_attachments: %Schema{type: :array, format: :"date-time"},
+      params: %Schema{
+        type: :object,
+        required: [:text, :visibility],
+        properties: %{
+          text: %Schema{type: :string, nullable: true},
+          media_ids: %Schema{type: :array, nullable: true, items: %Schema{type: :string}},
+          sensitive: %Schema{type: :boolean, nullable: true},
+          spoiler_text: %Schema{type: :string, nullable: true},
+          visibility: %Schema{type: VisibilityScope, nullable: true},
+          scheduled_at: %Schema{type: :string, format: :"date-time", nullable: true},
+          poll: %Schema{type: Poll, nullable: true},
+          in_reply_to_id: %Schema{type: :string, nullable: true}
+        }
+      }
+    },
+    example: %{
+      id: "3221",
+      scheduled_at: "2019-12-05T12:33:01.000Z",
+      params: %{
+        text: "test content",
+        media_ids: nil,
+        sensitive: nil,
+        spoiler_text: nil,
+        visibility: nil,
+        scheduled_at: nil,
+        poll: nil,
+        idempotency: nil,
+        in_reply_to_id: nil
+      },
+      media_attachments: []
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/status.ex b/lib/pleroma/web/api_spec/schemas/status.ex
index aef0588d4..d44636a48 100644
--- a/lib/pleroma/web/api_spec/schemas/status.ex
+++ b/lib/pleroma/web/api_spec/schemas/status.ex
@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.ApiSpec.Schemas.Status do
   alias OpenApiSpex.Schema
   alias Pleroma.Web.ApiSpec.Schemas.Account
+  alias Pleroma.Web.ApiSpec.Schemas.Attachment
   alias Pleroma.Web.ApiSpec.Schemas.Emoji
   alias Pleroma.Web.ApiSpec.Schemas.FlakeID
   alias Pleroma.Web.ApiSpec.Schemas.Poll
@@ -50,22 +51,7 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Status do
       language: %Schema{type: :string, nullable: true},
       media_attachments: %Schema{
         type: :array,
-        items: %Schema{
-          type: :object,
-          properties: %{
-            id: %Schema{type: :string},
-            url: %Schema{type: :string, format: :uri},
-            remote_url: %Schema{type: :string, format: :uri},
-            preview_url: %Schema{type: :string, format: :uri},
-            text_url: %Schema{type: :string, format: :uri},
-            description: %Schema{type: :string},
-            type: %Schema{type: :string, enum: ["image", "video", "audio", "unknown"]},
-            pleroma: %Schema{
-              type: :object,
-              properties: %{mime_type: %Schema{type: :string}}
-            }
-          }
-        }
+        items: Attachment
       },
       mentions: %Schema{
         type: :array,

From 332e016bcdbda5dca90d916bc62a9c67544b5323 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Tue, 5 May 2020 23:42:18 +0400
Subject: [PATCH 22/22] Add OpenAPI spec for ScheduledActivityController

---
 .../operations/scheduled_activity_operation.ex     | 96 ++++++++++++++++++++++
 .../web/api_spec/schemas/scheduled_status.ex       |  7 +-
 .../controllers/scheduled_activity_controller.ex   | 12 ++-
 test/support/helpers.ex                            |  8 +-
 .../scheduled_activity_controller_test.exs         | 34 +++++---
 test/web/mastodon_api/views/status_view_test.exs   |  8 +-
 6 files changed, 144 insertions(+), 21 deletions(-)
 create mode 100644 lib/pleroma/web/api_spec/operations/scheduled_activity_operation.ex

diff --git a/lib/pleroma/web/api_spec/operations/scheduled_activity_operation.ex b/lib/pleroma/web/api_spec/operations/scheduled_activity_operation.ex
new file mode 100644
index 000000000..fe675a923
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/scheduled_activity_operation.ex
@@ -0,0 +1,96 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.ScheduledActivityOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
+  alias Pleroma.Web.ApiSpec.Schemas.ScheduledStatus
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "View scheduled statuses",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      parameters: pagination_params(),
+      operationId: "ScheduledActivity.index",
+      responses: %{
+        200 =>
+          Operation.response("Array of ScheduledStatus", "application/json", %Schema{
+            type: :array,
+            items: ScheduledStatus
+          })
+      }
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "View a single scheduled status",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      parameters: [id_param()],
+      operationId: "ScheduledActivity.show",
+      responses: %{
+        200 => Operation.response("Scheduled Status", "application/json", ScheduledStatus),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "Schedule a status",
+      operationId: "ScheduledActivity.update",
+      security: [%{"oAuth" => ["write:statuses"]}],
+      parameters: [id_param()],
+      requestBody:
+        request_body("Parameters", %Schema{
+          type: :object,
+          properties: %{
+            scheduled_at: %Schema{
+              type: :string,
+              format: :"date-time",
+              description:
+                "ISO 8601 Datetime at which the status will be published. Must be at least 5 minutes into the future."
+            }
+          }
+        }),
+      responses: %{
+        200 => Operation.response("Scheduled Status", "application/json", ScheduledStatus),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "Cancel a scheduled status",
+      security: [%{"oAuth" => ["write:statuses"]}],
+      parameters: [id_param()],
+      operationId: "ScheduledActivity.delete",
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object}),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, FlakeID, "Poll ID",
+      example: "123",
+      required: true
+    )
+  end
+end
diff --git a/lib/pleroma/web/api_spec/schemas/scheduled_status.ex b/lib/pleroma/web/api_spec/schemas/scheduled_status.ex
index f0bc4ee3c..0520d0848 100644
--- a/lib/pleroma/web/api_spec/schemas/scheduled_status.ex
+++ b/lib/pleroma/web/api_spec/schemas/scheduled_status.ex
@@ -4,8 +4,9 @@
 
 defmodule Pleroma.Web.ApiSpec.Schemas.ScheduledStatus do
   alias OpenApiSpex.Schema
-  alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
+  alias Pleroma.Web.ApiSpec.Schemas.Attachment
   alias Pleroma.Web.ApiSpec.Schemas.Poll
+  alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
 
   require OpenApiSpex
 
@@ -17,7 +18,7 @@ defmodule Pleroma.Web.ApiSpec.Schemas.ScheduledStatus do
     properties: %{
       id: %Schema{type: :string},
       scheduled_at: %Schema{type: :string, format: :"date-time"},
-      media_attachments: %Schema{type: :array, format: :"date-time"},
+      media_attachments: %Schema{type: :array, items: Attachment},
       params: %Schema{
         type: :object,
         required: [:text, :visibility],
@@ -47,7 +48,7 @@ defmodule Pleroma.Web.ApiSpec.Schemas.ScheduledStatus do
         idempotency: nil,
         in_reply_to_id: nil
       },
-      media_attachments: []
+      media_attachments: [Attachment.schema().example]
     }
   })
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/scheduled_activity_controller.ex b/lib/pleroma/web/mastodon_api/controllers/scheduled_activity_controller.ex
index 899b78873..1719c67ea 100644
--- a/lib/pleroma/web/mastodon_api/controllers/scheduled_activity_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/scheduled_activity_controller.ex
@@ -11,17 +11,21 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityController do
   alias Pleroma.ScheduledActivity
   alias Pleroma.Web.MastodonAPI.MastodonAPI
 
-  plug(:assign_scheduled_activity when action != :index)
-
   @oauth_read_actions [:show, :index]
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["read:statuses"]} when action in @oauth_read_actions)
   plug(OAuthScopesPlug, %{scopes: ["write:statuses"]} when action not in @oauth_read_actions)
+  plug(:assign_scheduled_activity when action != :index)
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ScheduledActivityOperation
+
   @doc "GET /api/v1/scheduled_statuses"
   def index(%{assigns: %{user: user}} = conn, params) do
+    params = Map.new(params, fn {key, value} -> {to_string(key), value} end)
+
     with scheduled_activities <- MastodonAPI.get_scheduled_activities(user, params) do
       conn
       |> add_link_headers(scheduled_activities)
@@ -35,7 +39,7 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityController do
   end
 
   @doc "PUT /api/v1/scheduled_statuses/:id"
-  def update(%{assigns: %{scheduled_activity: scheduled_activity}} = conn, params) do
+  def update(%{assigns: %{scheduled_activity: scheduled_activity}, body_params: params} = conn, _) do
     with {:ok, scheduled_activity} <- ScheduledActivity.update(scheduled_activity, params) do
       render(conn, "show.json", scheduled_activity: scheduled_activity)
     end
@@ -48,7 +52,7 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityController do
     end
   end
 
-  defp assign_scheduled_activity(%{assigns: %{user: user}, params: %{"id" => id}} = conn, _) do
+  defp assign_scheduled_activity(%{assigns: %{user: user}, params: %{id: id}} = conn, _) do
     case ScheduledActivity.get(user, id) do
       %ScheduledActivity{} = activity -> assign(conn, :scheduled_activity, activity)
       nil -> Pleroma.Web.MastodonAPI.FallbackController.call(conn, {:error, :not_found}) |> halt()
diff --git a/test/support/helpers.ex b/test/support/helpers.ex
index e68e9bfd2..26281b45e 100644
--- a/test/support/helpers.ex
+++ b/test/support/helpers.ex
@@ -40,12 +40,18 @@ defmodule Pleroma.Tests.Helpers do
           clear_config: 2
         ]
 
-      def to_datetime(naive_datetime) do
+      def to_datetime(%NaiveDateTime{} = naive_datetime) do
         naive_datetime
         |> DateTime.from_naive!("Etc/UTC")
         |> DateTime.truncate(:second)
       end
 
+      def to_datetime(datetime) when is_binary(datetime) do
+        datetime
+        |> NaiveDateTime.from_iso8601!()
+        |> to_datetime()
+      end
+
       def collect_ids(collection) do
         collection
         |> Enum.map(& &1.id)
diff --git a/test/web/mastodon_api/controllers/scheduled_activity_controller_test.exs b/test/web/mastodon_api/controllers/scheduled_activity_controller_test.exs
index f86274d57..1ff871c89 100644
--- a/test/web/mastodon_api/controllers/scheduled_activity_controller_test.exs
+++ b/test/web/mastodon_api/controllers/scheduled_activity_controller_test.exs
@@ -24,19 +24,19 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityControllerTest do
     # min_id
     conn_res = get(conn, "/api/v1/scheduled_statuses?limit=2&min_id=#{scheduled_activity_id1}")
 
-    result = json_response(conn_res, 200)
+    result = json_response_and_validate_schema(conn_res, 200)
     assert [%{"id" => ^scheduled_activity_id3}, %{"id" => ^scheduled_activity_id2}] = result
 
     # since_id
     conn_res = get(conn, "/api/v1/scheduled_statuses?limit=2&since_id=#{scheduled_activity_id1}")
 
-    result = json_response(conn_res, 200)
+    result = json_response_and_validate_schema(conn_res, 200)
     assert [%{"id" => ^scheduled_activity_id4}, %{"id" => ^scheduled_activity_id3}] = result
 
     # max_id
     conn_res = get(conn, "/api/v1/scheduled_statuses?limit=2&max_id=#{scheduled_activity_id4}")
 
-    result = json_response(conn_res, 200)
+    result = json_response_and_validate_schema(conn_res, 200)
     assert [%{"id" => ^scheduled_activity_id3}, %{"id" => ^scheduled_activity_id2}] = result
   end
 
@@ -46,12 +46,12 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityControllerTest do
 
     res_conn = get(conn, "/api/v1/scheduled_statuses/#{scheduled_activity.id}")
 
-    assert %{"id" => scheduled_activity_id} = json_response(res_conn, 200)
+    assert %{"id" => scheduled_activity_id} = json_response_and_validate_schema(res_conn, 200)
     assert scheduled_activity_id == scheduled_activity.id |> to_string()
 
     res_conn = get(conn, "/api/v1/scheduled_statuses/404")
 
-    assert %{"error" => "Record not found"} = json_response(res_conn, 404)
+    assert %{"error" => "Record not found"} = json_response_and_validate_schema(res_conn, 404)
   end
 
   test "updates a scheduled activity" do
@@ -74,22 +74,32 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityControllerTest do
     assert job.args == %{"activity_id" => scheduled_activity.id}
     assert DateTime.truncate(job.scheduled_at, :second) == to_datetime(scheduled_at)
 
-    new_scheduled_at = Timex.shift(NaiveDateTime.utc_now(), minutes: 120)
+    new_scheduled_at =
+      NaiveDateTime.utc_now()
+      |> Timex.shift(minutes: 120)
+      |> Timex.format!("%Y-%m-%dT%H:%M:%S.%fZ", :strftime)
 
     res_conn =
-      put(conn, "/api/v1/scheduled_statuses/#{scheduled_activity.id}", %{
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> put("/api/v1/scheduled_statuses/#{scheduled_activity.id}", %{
         scheduled_at: new_scheduled_at
       })
 
-    assert %{"scheduled_at" => expected_scheduled_at} = json_response(res_conn, 200)
+    assert %{"scheduled_at" => expected_scheduled_at} =
+             json_response_and_validate_schema(res_conn, 200)
+
     assert expected_scheduled_at == Pleroma.Web.CommonAPI.Utils.to_masto_date(new_scheduled_at)
     job = refresh_record(job)
 
     assert DateTime.truncate(job.scheduled_at, :second) == to_datetime(new_scheduled_at)
 
-    res_conn = put(conn, "/api/v1/scheduled_statuses/404", %{scheduled_at: new_scheduled_at})
+    res_conn =
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> put("/api/v1/scheduled_statuses/404", %{scheduled_at: new_scheduled_at})
 
-    assert %{"error" => "Record not found"} = json_response(res_conn, 404)
+    assert %{"error" => "Record not found"} = json_response_and_validate_schema(res_conn, 404)
   end
 
   test "deletes a scheduled activity" do
@@ -115,7 +125,7 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityControllerTest do
       |> assign(:user, user)
       |> delete("/api/v1/scheduled_statuses/#{scheduled_activity.id}")
 
-    assert %{} = json_response(res_conn, 200)
+    assert %{} = json_response_and_validate_schema(res_conn, 200)
     refute Repo.get(ScheduledActivity, scheduled_activity.id)
     refute Repo.get(Oban.Job, job.id)
 
@@ -124,6 +134,6 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityControllerTest do
       |> assign(:user, user)
       |> delete("/api/v1/scheduled_statuses/#{scheduled_activity.id}")
 
-    assert %{"error" => "Record not found"} = json_response(res_conn, 404)
+    assert %{"error" => "Record not found"} = json_response_and_validate_schema(res_conn, 404)
   end
 end
diff --git a/test/web/mastodon_api/views/status_view_test.exs b/test/web/mastodon_api/views/status_view_test.exs
index 6791c2fb0..451723e60 100644
--- a/test/web/mastodon_api/views/status_view_test.exs
+++ b/test/web/mastodon_api/views/status_view_test.exs
@@ -402,11 +402,17 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
       pleroma: %{mime_type: "image/png"}
     }
 
+    api_spec = Pleroma.Web.ApiSpec.spec()
+
     assert expected == StatusView.render("attachment.json", %{attachment: object})
+    OpenApiSpex.TestAssertions.assert_schema(expected, "Attachment", api_spec)
 
     # If theres a "id", use that instead of the generated one
     object = Map.put(object, "id", 2)
-    assert %{id: "2"} = StatusView.render("attachment.json", %{attachment: object})
+    result = StatusView.render("attachment.json", %{attachment: object})
+
+    assert %{id: "2"} = result
+    OpenApiSpex.TestAssertions.assert_schema(result, "Attachment", api_spec)
   end
 
   test "put the url advertised in the Activity in to the url attribute" do