Merge branch 'develop' of git.pleroma.social:pleroma/pleroma into remake-remodel-dms

36 files changed, 515 insertions, 162 deletions

diff --git a/lib/mix/pleroma.ex b/lib/mix/pleroma.ex
index 4dfcc32e7..3ad6edbfb 100644
--- a/lib/mix/pleroma.ex
+++ b/lib/mix/pleroma.ex
@@ -5,7 +5,6 @@
 defmodule Mix.Pleroma do
   @doc "Common functions to be reused in mix tasks"
   def start_pleroma do
-    Mix.Task.run("app.start")
     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
 
     if Pleroma.Config.get(:env) != :test do
diff --git a/lib/mix/tasks/pleroma/benchmark.ex b/lib/mix/tasks/pleroma/benchmark.ex
index dd2b9c8f2..6ab7fe8ef 100644
--- a/lib/mix/tasks/pleroma/benchmark.ex
+++ b/lib/mix/tasks/pleroma/benchmark.ex
@@ -67,7 +67,8 @@ defmodule Mix.Tasks.Pleroma.Benchmark do
           Pleroma.Web.MastodonAPI.StatusView.render("index.json", %{
             activities: activities,
             for: user,
-            as: :activity
+            as: :activity,
+            skip_relationships: true
           })
         end
       },
diff --git a/lib/pleroma/config/transfer_task.ex b/lib/pleroma/config/transfer_task.ex
index 936bc9ab1..3871e1cbb 100644
--- a/lib/pleroma/config/transfer_task.ex
+++ b/lib/pleroma/config/transfer_task.ex
@@ -54,10 +54,19 @@ defmodule Pleroma.Config.TransferTask do
           [:pleroma, nil, :prometheus]
         end
 
+      {logger, other} =
+        (Repo.all(ConfigDB) ++ deleted_settings)
+        |> Enum.map(&transform_and_merge/1)
+        |> Enum.split_with(fn {group, _, _, _} -> group in [:logger, :quack] end)
+
+      logger
+      |> Enum.sort()
+      |> Enum.each(&configure/1)
+
       started_applications = Application.started_applications()
 
-      (Repo.all(ConfigDB) ++ deleted_settings)
-      |> Enum.map(&merge_and_update/1)
+      other
+      |> Enum.map(&update/1)
       |> Enum.uniq()
       |> Enum.reject(&(&1 in reject_restart))
       |> maybe_set_pleroma_last()
@@ -81,51 +90,66 @@ defmodule Pleroma.Config.TransferTask do
     end
   end
 
-  defp group_for_restart(:logger, key, _, merged_value) do
-    # change logger configuration in runtime, without restart
-    if Keyword.keyword?(merged_value) and
-         key not in [:compile_time_application, :backends, :compile_time_purge_matching] do
-      Logger.configure_backend(key, merged_value)
-    else
-      Logger.configure([{key, merged_value}])
-    end
+  defp transform_and_merge(%{group: group, key: key, value: value} = setting) do
+    group = ConfigDB.from_string(group)
+    key = ConfigDB.from_string(key)
+    value = ConfigDB.from_binary(value)
 
-    nil
-  end
+    default = Config.Holder.default_config(group, key)
 
-  defp group_for_restart(group, _, _, _) when group != :pleroma, do: group
+    merged =
+      cond do
+        Ecto.get_meta(setting, :state) == :deleted -> default
+        can_be_merged?(default, value) -> ConfigDB.merge_group(group, key, default, value)
+        true -> value
+      end
 
-  defp group_for_restart(group, key, value, _) do
-    if pleroma_need_restart?(group, key, value), do: group
+    {group, key, value, merged}
   end
 
-  defp merge_and_update(setting) do
-    try do
-      key = ConfigDB.from_string(setting.key)
-      group = ConfigDB.from_string(setting.group)
+  # change logger configuration in runtime, without restart
+  defp configure({:quack, key, _, merged}) do
+    Logger.configure_backend(Quack.Logger, [{key, merged}])
+    :ok = update_env(:quack, key, merged)
+  end
 
-      default = Config.Holder.default_config(group, key)
-      value = ConfigDB.from_binary(setting.value)
+  defp configure({_, :backends, _, merged}) do
+    # removing current backends
+    Enum.each(Application.get_env(:logger, :backends), &Logger.remove_backend/1)
 
-      merged_value =
-        cond do
-          Ecto.get_meta(setting, :state) == :deleted -> default
-          can_be_merged?(default, value) -> ConfigDB.merge_group(group, key, default, value)
-          true -> value
-        end
+    Enum.each(merged, &Logger.add_backend/1)
 
-      :ok = update_env(group, key, merged_value)
+    :ok = update_env(:logger, :backends, merged)
+  end
 
-      group_for_restart(group, key, value, merged_value)
+  defp configure({group, key, _, merged}) do
+    merged =
+      if key == :console do
+        put_in(merged[:format], merged[:format] <> "\n")
+      else
+        merged
+      end
+
+    backend =
+      if key == :ex_syslogger,
+        do: {ExSyslogger, :ex_syslogger},
+        else: key
+
+    Logger.configure_backend(backend, merged)
+    :ok = update_env(:logger, group, merged)
+  end
+
+  defp update({group, key, value, merged}) do
+    try do
+      :ok = update_env(group, key, merged)
+
+      if group != :pleroma or pleroma_need_restart?(group, key, value), do: group
     rescue
       error ->
         error_msg =
-          "updating env causes error, group: " <>
-            inspect(setting.group) <>
-            " key: " <>
-            inspect(setting.key) <>
-            " value: " <>
-            inspect(ConfigDB.from_binary(setting.value)) <> " error: " <> inspect(error)
+          "updating env causes error, group: #{inspect(group)}, key: #{inspect(key)}, value: #{
+            inspect(value)
+          } error: #{inspect(error)}"
 
         Logger.warn(error_msg)
 
@@ -133,6 +157,9 @@ defmodule Pleroma.Config.TransferTask do
     end
   end
 
+  defp update_env(group, key, nil), do: Application.delete_env(group, key)
+  defp update_env(group, key, value), do: Application.put_env(group, key, value)
+
   @spec pleroma_need_restart?(atom(), atom(), any()) :: boolean()
   def pleroma_need_restart?(group, key, value) do
     group_and_key_need_reboot?(group, key) or group_and_subkey_need_reboot?(group, key, value)
@@ -150,9 +177,6 @@ defmodule Pleroma.Config.TransferTask do
       end)
   end
 
-  defp update_env(group, key, nil), do: Application.delete_env(group, key)
-  defp update_env(group, key, value), do: Application.put_env(group, key, value)
-
   defp restart(_, :pleroma, env), do: Restarter.Pleroma.restart_after_boot(env)
 
   defp restart(started_applications, app, _) do
diff --git a/lib/pleroma/ecto_enums.ex b/lib/pleroma/ecto_enums.ex
index d9b601223..6fc47620c 100644
--- a/lib/pleroma/ecto_enums.ex
+++ b/lib/pleroma/ecto_enums.ex
@@ -4,10 +4,16 @@
 
 import EctoEnum
 
-defenum(UserRelationshipTypeEnum,
+defenum(Pleroma.UserRelationship.Type,
   block: 1,
   mute: 2,
   reblog_mute: 3,
   notification_mute: 4,
   inverse_subscription: 5
 )
+
+defenum(Pleroma.FollowingRelationship.State,
+  follow_pending: 1,
+  follow_accept: 2,
+  follow_reject: 3
+)
diff --git a/lib/pleroma/following_relationship.ex b/lib/pleroma/following_relationship.ex
index a9538ea4e..9ccf40495 100644
--- a/lib/pleroma/following_relationship.ex
+++ b/lib/pleroma/following_relationship.ex
@@ -8,12 +8,13 @@ defmodule Pleroma.FollowingRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
   alias FlakeId.Ecto.CompatType
   alias Pleroma.Repo
   alias Pleroma.User
 
   schema "following_relationships" do
-    field(:state, :string, default: "accept")
+    field(:state, Pleroma.FollowingRelationship.State, default: :follow_pending)
 
     belongs_to(:follower, User, type: CompatType)
     belongs_to(:following, User, type: CompatType)
@@ -27,6 +28,18 @@ defmodule Pleroma.FollowingRelationship do
     |> put_assoc(:follower, attrs.follower)
     |> put_assoc(:following, attrs.following)
     |> validate_required([:state, :follower, :following])
+    |> unique_constraint(:follower_id,
+      name: :following_relationships_follower_id_following_id_index
+    )
+    |> validate_not_self_relationship()
+  end
+
+  def state_to_enum(state) when state in ["pending", "accept", "reject"] do
+    String.to_existing_atom("follow_#{state}")
+  end
+
+  def state_to_enum(state) do
+    raise "State is not convertible to Pleroma.FollowingRelationship.State: #{state}"
   end
 
   def get(%User{} = follower, %User{} = following) do
@@ -35,7 +48,7 @@ defmodule Pleroma.FollowingRelationship do
     |> Repo.one()
   end
 
-  def update(follower, following, "reject"), do: unfollow(follower, following)
+  def update(follower, following, :follow_reject), do: unfollow(follower, following)
 
   def update(%User{} = follower, %User{} = following, state) do
     case get(follower, following) do
@@ -50,7 +63,7 @@ defmodule Pleroma.FollowingRelationship do
     end
   end
 
-  def follow(%User{} = follower, %User{} = following, state \\ "accept") do
+  def follow(%User{} = follower, %User{} = following, state \\ :follow_accept) do
     %__MODULE__{}
     |> changeset(%{follower: follower, following: following, state: state})
     |> Repo.insert(on_conflict: :nothing)
@@ -80,7 +93,7 @@ defmodule Pleroma.FollowingRelationship do
   def get_follow_requests(%User{id: id}) do
     __MODULE__
     |> join(:inner, [r], f in assoc(r, :follower))
-    |> where([r], r.state == "pending")
+    |> where([r], r.state == ^:follow_pending)
     |> where([r], r.following_id == ^id)
     |> select([r, f], f)
     |> Repo.all()
@@ -88,7 +101,7 @@ defmodule Pleroma.FollowingRelationship do
 
   def following?(%User{id: follower_id}, %User{id: followed_id}) do
     __MODULE__
-    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
+    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: ^:follow_accept)
     |> Repo.exists?()
   end
 
@@ -97,7 +110,7 @@ defmodule Pleroma.FollowingRelationship do
       __MODULE__
       |> join(:inner, [r], u in User, on: r.following_id == u.id)
       |> where([r], r.follower_id == ^user.id)
-      |> where([r], r.state == "accept")
+      |> where([r], r.state == ^:follow_accept)
       |> select([r, u], u.follower_address)
       |> Repo.all()
 
@@ -157,4 +170,30 @@ defmodule Pleroma.FollowingRelationship do
       fr -> fr.follower_id == follower.id and fr.following_id == following.id
     end)
   end
+
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
+    changeset
+    |> validate_follower_id_following_id_inequality()
+    |> validate_following_id_follower_id_inequality()
+  end
+
+  defp validate_follower_id_following_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :follower_id, fn _, follower_id ->
+      if follower_id == get_field(changeset, :following_id) do
+        [source_id: "can't be equal to following_id"]
+      else
+        []
+      end
+    end)
+  end
+
+  defp validate_following_id_follower_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :following_id, fn _, following_id ->
+      if following_id == get_field(changeset, :follower_id) do
+        [target_id: "can't be equal to follower_id"]
+      else
+        []
+      end
+    end)
+  end
 end
diff --git a/lib/pleroma/plugs/mapped_signature_to_identity_plug.ex b/lib/pleroma/plugs/mapped_signature_to_identity_plug.ex
index 4f124ed4d..84b7c5d83 100644
--- a/lib/pleroma/plugs/mapped_signature_to_identity_plug.ex
+++ b/lib/pleroma/plugs/mapped_signature_to_identity_plug.ex
@@ -42,13 +42,13 @@ defmodule Pleroma.Web.Plugs.MappedSignatureToIdentityPlug do
     else
       {:user_match, false} ->
         Logger.debug("Failed to map identity from signature (payload actor mismatch)")
-        Logger.debug("key_id=#{key_id_from_conn(conn)}, actor=#{actor}")
+        Logger.debug("key_id=#{inspect(key_id_from_conn(conn))}, actor=#{inspect(actor)}")
         assign(conn, :valid_signature, false)
 
       # remove me once testsuite uses mapped capabilities instead of what we do now
       {:user, nil} ->
         Logger.debug("Failed to map identity from signature (lookup failure)")
-        Logger.debug("key_id=#{key_id_from_conn(conn)}, actor=#{actor}")
+        Logger.debug("key_id=#{inspect(key_id_from_conn(conn))}, actor=#{actor}")
         conn
     end
   end
@@ -60,7 +60,7 @@ defmodule Pleroma.Web.Plugs.MappedSignatureToIdentityPlug do
     else
       _ ->
         Logger.debug("Failed to map identity from signature (no payload actor mismatch)")
-        Logger.debug("key_id=#{key_id_from_conn(conn)}")
+        Logger.debug("key_id=#{inspect(key_id_from_conn(conn))}")
         assign(conn, :valid_signature, false)
     end
   end
diff --git a/lib/pleroma/plugs/uploaded_media.ex b/lib/pleroma/plugs/uploaded_media.ex
index 36ff024a7..94147e0c4 100644
--- a/lib/pleroma/plugs/uploaded_media.ex
+++ b/lib/pleroma/plugs/uploaded_media.ex
@@ -41,6 +41,7 @@ defmodule Pleroma.Plugs.UploadedMedia do
         conn ->
           conn
       end
+      |> merge_resp_headers([{"content-security-policy", "sandbox"}])
 
     config = Pleroma.Config.get(Pleroma.Upload)
 
diff --git a/lib/pleroma/pool/connections.ex b/lib/pleroma/pool/connections.ex
index 4d4ba913c..acafe1bea 100644
--- a/lib/pleroma/pool/connections.ex
+++ b/lib/pleroma/pool/connections.ex
@@ -243,7 +243,7 @@ defmodule Pleroma.Pool.Connections do
 
   @impl true
   def handle_info({:DOWN, _ref, :process, conn_pid, reason}, state) do
-    Logger.debug("received DOWM message for #{inspect(conn_pid)} reason -> #{inspect(reason)}")
+    Logger.debug("received DOWN message for #{inspect(conn_pid)} reason -> #{inspect(reason)}")
 
     state =
       with {key, conn} <- find_conn(state.conns, conn_pid) do
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 71c8c3a4e..670ce397b 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -700,7 +700,7 @@ defmodule Pleroma.User do
 
   @spec maybe_direct_follow(User.t(), User.t()) :: {:ok, User.t()} | {:error, String.t()}
   def maybe_direct_follow(%User{} = follower, %User{local: true, locked: true} = followed) do
-    follow(follower, followed, "pending")
+    follow(follower, followed, :follow_pending)
   end
 
   def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
@@ -720,14 +720,14 @@ defmodule Pleroma.User do
   def follow_all(follower, followeds) do
     followeds
     |> Enum.reject(fn followed -> blocks?(follower, followed) || blocks?(followed, follower) end)
-    |> Enum.each(&follow(follower, &1, "accept"))
+    |> Enum.each(&follow(follower, &1, :follow_accept))
 
     set_cache(follower)
   end
 
   defdelegate following(user), to: FollowingRelationship
 
-  def follow(%User{} = follower, %User{} = followed, state \\ "accept") do
+  def follow(%User{} = follower, %User{} = followed, state \\ :follow_accept) do
     deny_follow_blocked = Pleroma.Config.get([:user, :deny_follow_blocked])
 
     cond do
@@ -754,7 +754,7 @@ defmodule Pleroma.User do
 
   def unfollow(%User{} = follower, %User{} = followed) do
     case get_follow_state(follower, followed) do
-      state when state in ["accept", "pending"] ->
+      state when state in [:follow_pending, :follow_accept] ->
         FollowingRelationship.unfollow(follower, followed)
         {:ok, followed} = update_follower_count(followed)
 
@@ -772,6 +772,7 @@ defmodule Pleroma.User do
 
   defdelegate following?(follower, followed), to: FollowingRelationship
 
+  @doc "Returns follow state as Pleroma.FollowingRelationship.State value"
   def get_follow_state(%User{} = follower, %User{} = following) do
     following_relationship = FollowingRelationship.get(follower, following)
     get_follow_state(follower, following, following_relationship)
@@ -785,8 +786,11 @@ defmodule Pleroma.User do
     case {following_relationship, following.local} do
       {nil, false} ->
         case Utils.fetch_latest_follow(follower, following) do
-          %{data: %{"state" => state}} when state in ["pending", "accept"] -> state
-          _ -> nil
+          %Activity{data: %{"state" => state}} when state in ["pending", "accept"] ->
+            FollowingRelationship.state_to_enum(state)
+
+          _ ->
+            nil
         end
 
       {%{state: state}, _} ->
@@ -1285,7 +1289,7 @@ defmodule Pleroma.User do
 
   def blocks?(%User{} = user, %User{} = target) do
     blocks_user?(user, target) ||
-      (!User.following?(user, target) && blocks_domain?(user, target))
+      (blocks_domain?(user, target) and not User.following?(user, target))
   end
 
   def blocks_user?(%User{} = user, %User{} = target) do
diff --git a/lib/pleroma/user/query.ex b/lib/pleroma/user/query.ex
index 884e33039..ec88088cf 100644
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@@ -148,7 +148,7 @@ defmodule Pleroma.User.Query do
       as: :relationships,
       on: r.following_id == ^id and r.follower_id == u.id
     )
-    |> where([relationships: r], r.state == "accept")
+    |> where([relationships: r], r.state == ^:follow_accept)
   end
 
   defp compose_query({:friends, %User{id: id}}, query) do
@@ -158,7 +158,7 @@ defmodule Pleroma.User.Query do
       as: :relationships,
       on: r.following_id == u.id and r.follower_id == ^id
     )
-    |> where([relationships: r], r.state == "accept")
+    |> where([relationships: r], r.state == ^:follow_accept)
   end
 
   defp compose_query({:recipients_from_activity, to}, query) do
@@ -173,7 +173,7 @@ defmodule Pleroma.User.Query do
     )
     |> where(
       [u, following: f, relationships: r],
-      u.ap_id in ^to or (f.follower_address in ^to and r.state == "accept")
+      u.ap_id in ^to or (f.follower_address in ^to and r.state == ^:follow_accept)
     )
     |> distinct(true)
   end
diff --git a/lib/pleroma/user_relationship.ex b/lib/pleroma/user_relationship.ex
index 18a5eec72..235ad427c 100644
--- a/lib/pleroma/user_relationship.ex
+++ b/lib/pleroma/user_relationship.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.UserRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
   alias Pleroma.FollowingRelationship
   alias Pleroma.Repo
   alias Pleroma.User
@@ -16,12 +17,12 @@ defmodule Pleroma.UserRelationship do
   schema "user_relationships" do
     belongs_to(:source, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:target, User, type: FlakeId.Ecto.CompatType)
-    field(:relationship_type, UserRelationshipTypeEnum)
+    field(:relationship_type, Pleroma.UserRelationship.Type)
 
     timestamps(updated_at: false)
   end
 
-  for relationship_type <- Keyword.keys(UserRelationshipTypeEnum.__enum_map__()) do
+  for relationship_type <- Keyword.keys(Pleroma.UserRelationship.Type.__enum_map__()) do
     # `def create_block/2`, `def create_mute/2`, `def create_reblog_mute/2`,
     #   `def create_notification_mute/2`, `def create_inverse_subscription/2`
     def unquote(:"create_#{relationship_type}")(source, target),
@@ -40,7 +41,7 @@ defmodule Pleroma.UserRelationship do
 
   def user_relationship_types, do: Keyword.keys(user_relationship_mappings())
 
-  def user_relationship_mappings, do: UserRelationshipTypeEnum.__enum_map__()
+  def user_relationship_mappings, do: Pleroma.UserRelationship.Type.__enum_map__()
 
   def changeset(%UserRelationship{} = user_relationship, params \\ %{}) do
     user_relationship
@@ -129,17 +130,27 @@ defmodule Pleroma.UserRelationship do
   end
 
   @doc ":relationships option for StatusView / AccountView / NotificationView"
-  def view_relationships_option(nil = _reading_user, _actors) do
+  def view_relationships_option(reading_user, actors, opts \\ [])
+
+  def view_relationships_option(nil = _reading_user, _actors, _opts) do
     %{user_relationships: [], following_relationships: []}
   end
 
-  def view_relationships_option(%User{} = reading_user, actors) do
+  def view_relationships_option(%User{} = reading_user, actors, opts) do
+    {source_to_target_rel_types, target_to_source_rel_types} =
+      if opts[:source_mutes_only] do
+        # This option is used for rendering statuses (FE needs `muted` flag for each one anyways)
+        {[:mute], []}
+      else
+        {[:block, :mute, :notification_mute, :reblog_mute], [:block, :inverse_subscription]}
+      end
+
     user_relationships =
       UserRelationship.dictionary(
         [reading_user],
         actors,
-        [:block, :mute, :notification_mute, :reblog_mute],
-        [:block, :inverse_subscription]
+        source_to_target_rel_types,
+        target_to_source_rel_types
       )
 
     following_relationships = FollowingRelationship.all_between_user_sets([reading_user], actors)
@@ -147,18 +158,26 @@ defmodule Pleroma.UserRelationship do
     %{user_relationships: user_relationships, following_relationships: following_relationships}
   end
 
-  defp validate_not_self_relationship(%Ecto.Changeset{} = changeset) do
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
     changeset
-    |> validate_change(:target_id, fn _, target_id ->
-      if target_id == get_field(changeset, :source_id) do
-        [target_id: "can't be equal to source_id"]
+    |> validate_source_id_target_id_inequality()
+    |> validate_target_id_source_id_inequality()
+  end
+
+  defp validate_source_id_target_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :source_id, fn _, source_id ->
+      if source_id == get_field(changeset, :target_id) do
+        [source_id: "can't be equal to target_id"]
       else
         []
       end
     end)
-    |> validate_change(:source_id, fn _, source_id ->
-      if source_id == get_field(changeset, :target_id) do
-        [source_id: "can't be equal to target_id"]
+  end
+
+  defp validate_target_id_source_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :target_id, fn _, target_id ->
+      if target_id == get_field(changeset, :source_id) do
+        [target_id: "can't be equal to source_id"]
       else
         []
       end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 0b4892501..4a56beb73 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -722,7 +722,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  defp fetch_activities_for_context_query(context, opts) do
+  def fetch_activities_for_context_query(context, opts) do
     public = [Constants.as_public()]
 
     recipients =
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index becc35ea3..ad77a5037 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -206,16 +206,46 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     |> Map.put("conversation", context)
   end
 
+  defp add_if_present(map, _key, nil), do: map
+
+  defp add_if_present(map, key, value) do
+    Map.put(map, key, value)
+  end
+
   def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachment) do
     attachments =
       Enum.map(attachment, fn data ->
-        media_type = data["mediaType"] || data["mimeType"]
-        href = data["url"] || data["href"]
-        url = [%{"type" => "Link", "mediaType" => media_type, "href" => href}]
+        url =
+          cond do
+            is_list(data["url"]) -> List.first(data["url"])
+            is_map(data["url"]) -> data["url"]
+            true -> nil
+          end
 
-        data
-        |> Map.put("mediaType", media_type)
-        |> Map.put("url", url)
+        media_type =
+          cond do
+            is_map(url) && is_binary(url["mediaType"]) -> url["mediaType"]
+            is_binary(data["mediaType"]) -> data["mediaType"]
+            is_binary(data["mimeType"]) -> data["mimeType"]
+            true -> nil
+          end
+
+        href =
+          cond do
+            is_map(url) && is_binary(url["href"]) -> url["href"]
+            is_binary(data["url"]) -> data["url"]
+            is_binary(data["href"]) -> data["href"]
+          end
+
+        attachment_url =
+          %{"href" => href}
+          |> add_if_present("mediaType", media_type)
+          |> add_if_present("type", Map.get(url || %{}, "type"))
+
+        %{"url" => [attachment_url]}
+        |> add_if_present("mediaType", media_type)
+        |> add_if_present("type", data["type"])
+        |> add_if_present("name", data["name"])
       end)
 
     Map.put(object, "attachment", attachments)
@@ -495,7 +525,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
            {_, {:ok, follower}} <- {:follow, User.follow(follower, followed)},
            {_, {:ok, _}} <-
              {:follow_state_update, Utils.update_follow_state_for_all(activity, "accept")},
-           {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
+           {:ok, _relationship} <-
+             FollowingRelationship.update(follower, followed, :follow_accept) do
         ActivityPub.accept(%{
           to: [follower.ap_id],
           actor: followed,
@@ -505,7 +536,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
       else
         {:user_blocked, true} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_reject)
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -516,7 +547,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
         {:follow, {:error, _}} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_reject)
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -526,7 +557,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
           })
 
         {:user_locked, true} ->
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "pending")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_pending)
           :noop
       end
 
@@ -546,7 +577,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept) do
       ActivityPub.accept(%{
         to: follow_activity.data["to"],
         type: "Accept",
@@ -569,7 +600,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_reject),
          {:ok, activity} <-
            ActivityPub.reject(%{
              to: follow_activity.data["to"],
diff --git a/lib/pleroma/web/admin_api/admin_api_controller.ex b/lib/pleroma/web/admin_api/admin_api_controller.ex
index fdbd24acb..831c3bd02 100644
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@@ -258,7 +258,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
     conn
     |> put_view(Pleroma.Web.AdminAPI.StatusView)
-    |> render("index.json", %{activities: activities, as: :activity})
+    |> render("index.json", %{activities: activities, as: :activity, skip_relationships: false})
   end
 
   def list_user_statuses(conn, %{"nickname" => nickname} = params) do
@@ -277,7 +277,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
       conn
       |> put_view(StatusView)
-      |> render("index.json", %{activities: activities, as: :activity})
+      |> render("index.json", %{activities: activities, as: :activity, skip_relationships: false})
     else
       _ -> {:error, :not_found}
     end
@@ -812,7 +812,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
     conn
     |> put_view(Pleroma.Web.AdminAPI.StatusView)
-    |> render("index.json", %{activities: activities, as: :activity})
+    |> render("index.json", %{activities: activities, as: :activity, skip_relationships: false})
   end
 
   def status_update(%{assigns: %{user: admin}} = conn, %{"id" => id} = params) do
diff --git a/lib/pleroma/web/admin_api/views/report_view.ex b/lib/pleroma/web/admin_api/views/report_view.ex
index ca0bcebc7..d50969b2a 100644
--- a/lib/pleroma/web/admin_api/views/report_view.ex
+++ b/lib/pleroma/web/admin_api/views/report_view.ex
@@ -38,7 +38,12 @@ defmodule Pleroma.Web.AdminAPI.ReportView do
       actor: merge_account_views(user),
       content: content,
       created_at: created_at,
-      statuses: StatusView.render("index.json", %{activities: statuses, as: :activity}),
+      statuses:
+        StatusView.render("index.json", %{
+          activities: statuses,
+          as: :activity,
+          skip_relationships: false
+        }),
       state: report.data["state"],
       notes: render(__MODULE__, "index_notes.json", %{notes: report.report_notes})
     }
diff --git a/lib/pleroma/web/api_spec.ex b/lib/pleroma/web/api_spec.ex
index 41e48a085..3890489e3 100644
--- a/lib/pleroma/web/api_spec.ex
+++ b/lib/pleroma/web/api_spec.ex
@@ -31,7 +31,7 @@ defmodule Pleroma.Web.ApiSpec do
               password: %OpenApiSpex.OAuthFlow{
                 authorizationUrl: "/oauth/authorize",
                 tokenUrl: "/oauth/token",
-                scopes: %{"read" => "read"}
+                scopes: %{"read" => "read", "write" => "write", "follow" => "follow"}
               }
             }
           }
diff --git a/lib/pleroma/web/api_spec/helpers.ex b/lib/pleroma/web/api_spec/helpers.ex
index 35cf4c0d8..7348dcbee 100644
--- a/lib/pleroma/web/api_spec/helpers.ex
+++ b/lib/pleroma/web/api_spec/helpers.ex
@@ -4,7 +4,7 @@
 
 defmodule Pleroma.Web.ApiSpec.Helpers do
   def request_body(description, schema_ref, opts \\ []) do
-    media_types = ["application/json", "multipart/form-data"]
+    media_types = ["application/json", "multipart/form-data", "application/x-www-form-urlencoded"]
 
     content =
       media_types
diff --git a/lib/pleroma/web/api_spec/operations/domain_block_operation.ex b/lib/pleroma/web/api_spec/operations/domain_block_operation.ex
new file mode 100644
index 000000000..dd14837c3
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/domain_block_operation.ex
@@ -0,0 +1,64 @@
+# 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.DomainBlockOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+  alias Pleroma.Web.ApiSpec.Schemas.DomainBlockRequest
+  alias Pleroma.Web.ApiSpec.Schemas.DomainBlocksResponse
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["domain_blocks"],
+      summary: "Fetch domain blocks",
+      description: "View domains the user has blocked.",
+      security: [%{"oAuth" => ["follow", "read:blocks"]}],
+      operationId: "DomainBlockController.index",
+      responses: %{
+        200 => Operation.response("Domain blocks", "application/json", DomainBlocksResponse)
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["domain_blocks"],
+      summary: "Block a domain",
+      description: """
+      Block a domain to:
+
+      - hide all public posts from it
+      - hide all notifications from it
+      - remove all followers from it
+      - prevent following new users from it (but does not remove existing follows)
+      """,
+      operationId: "DomainBlockController.create",
+      requestBody: Helpers.request_body("Parameters", DomainBlockRequest, required: true),
+      security: [%{"oAuth" => ["follow", "write:blocks"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["domain_blocks"],
+      summary: "Unblock a domain",
+      description: "Remove a domain block, if it exists in the user's array of blocked domains.",
+      operationId: "DomainBlockController.delete",
+      requestBody: Helpers.request_body("Parameters", DomainBlockRequest, required: true),
+      security: [%{"oAuth" => ["follow", "write:blocks"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/schemas/domain_block_request.ex b/lib/pleroma/web/api_spec/schemas/domain_block_request.ex
new file mode 100644
index 000000000..ee9238361
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/domain_block_request.ex
@@ -0,0 +1,20 @@
+# 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.DomainBlockRequest do
+  alias OpenApiSpex.Schema
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "DomainBlockRequest",
+    type: :object,
+    properties: %{
+      domain: %Schema{type: :string}
+    },
+    required: [:domain],
+    example: %{
+      "domain" => "facebook.com"
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/domain_blocks_response.ex b/lib/pleroma/web/api_spec/schemas/domain_blocks_response.ex
new file mode 100644
index 000000000..d895aca4e
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/domain_blocks_response.ex
@@ -0,0 +1,16 @@
+# 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.DomainBlocksResponse do
+  require OpenApiSpex
+  alias OpenApiSpex.Schema
+
+  OpenApiSpex.schema(%{
+    title: "DomainBlocksResponse",
+    description: "Response schema for domain blocks",
+    type: :array,
+    items: %Schema{type: :string},
+    example: ["google.com", "facebook.com"]
+  })
+end
diff --git a/lib/pleroma/web/common_api/activity_draft.ex b/lib/pleroma/web/common_api/activity_draft.ex
index c4356f93b..c1cd15bb2 100644
--- a/lib/pleroma/web/common_api/activity_draft.ex
+++ b/lib/pleroma/web/common_api/activity_draft.ex
@@ -187,7 +187,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   end
 
   defp preview?(draft) do
-    preview? = Pleroma.Web.ControllerHelper.truthy_param?(draft.params["preview"]) || false
+    preview? = Pleroma.Web.ControllerHelper.truthy_param?(draft.params["preview"])
     %__MODULE__{draft | preview?: preview?}
   end
 
diff --git a/lib/pleroma/web/common_api/common_api.ex b/lib/pleroma/web/common_api/common_api.ex
index 39e15adbf..2f13daf0c 100644
--- a/lib/pleroma/web/common_api/common_api.ex
+++ b/lib/pleroma/web/common_api/common_api.ex
@@ -68,7 +68,7 @@ defmodule Pleroma.Web.CommonAPI do
     with {:ok, follower} <- User.follow(follower, followed),
          %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept),
          {:ok, _activity} <-
            ActivityPub.accept(%{
              to: [follower.ap_id],
@@ -83,7 +83,7 @@ defmodule Pleroma.Web.CommonAPI do
   def reject_follow_request(follower, followed) do
     with %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_reject),
          {:ok, _activity} <-
            ActivityPub.reject(%{
              to: [follower.ap_id],
diff --git a/lib/pleroma/web/controller_helper.ex b/lib/pleroma/web/controller_helper.ex
index b49523ec3..4780081b2 100644
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@@ -5,10 +5,18 @@
 defmodule Pleroma.Web.ControllerHelper do
   use Pleroma.Web, :controller
 
-  # As in MastoAPI, per https://api.rubyonrails.org/classes/ActiveModel/Type/Boolean.html
+  alias Pleroma.Config
+
+  # As in Mastodon API, per https://api.rubyonrails.org/classes/ActiveModel/Type/Boolean.html
   @falsy_param_values [false, 0, "0", "f", "F", "false", "False", "FALSE", "off", "OFF"]
-  def truthy_param?(blank_value) when blank_value in [nil, ""], do: nil
-  def truthy_param?(value), do: value not in @falsy_param_values
+
+  def explicitly_falsy_param?(value), do: value in @falsy_param_values
+
+  # Note: `nil` and `""` are considered falsy values in Pleroma
+  def falsy_param?(value),
+    do: explicitly_falsy_param?(value) or value in [nil, ""]
+
+  def truthy_param?(value), do: not falsy_param?(value)
 
   def json_response(conn, status, json) do
     conn
@@ -96,4 +104,14 @@ defmodule Pleroma.Web.ControllerHelper do
   def put_if_exist(map, _key, nil), do: map
 
   def put_if_exist(map, key, value), do: Map.put(map, key, value)
+
+  @doc "Whether to skip rendering `[:account][:pleroma][:relationship]`for statuses/notifications"
+  def skip_relationships?(params) do
+    if Config.get([:extensions, :output_relationships_in_statuses_by_default]) do
+      false
+    else
+      # BREAKING: older PleromaFE versions do not send this param but _do_ expect relationships.
+      not truthy_param?(params["with_relationships"])
+    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 21bc3d5a5..7da1a11f6 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -6,7 +6,13 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   use Pleroma.Web, :controller
 
   import Pleroma.Web.ControllerHelper,
-    only: [add_link_headers: 2, truthy_param?: 1, assign_account_by_id: 2, json_response: 3]
+    only: [
+      add_link_headers: 2,
+      truthy_param?: 1,
+      assign_account_by_id: 2,
+      json_response: 3,
+      skip_relationships?: 1
+    ]
 
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.Plugs.RateLimiter
@@ -237,7 +243,12 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
       conn
       |> add_link_headers(activities)
       |> put_view(StatusView)
-      |> render("index.json", activities: activities, for: reading_user, as: :activity)
+      |> render("index.json",
+        activities: activities,
+        for: reading_user,
+        as: :activity,
+        skip_relationships: skip_relationships?(params)
+      )
     else
       _e -> render_error(conn, :not_found, "Can't find user")
     end
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 e4156cbe6..84de79413 100644
--- a/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex
@@ -8,6 +8,9 @@ defmodule Pleroma.Web.MastodonAPI.DomainBlockController do
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.User
 
+  plug(OpenApiSpex.Plug.CastAndValidate)
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.DomainBlockOperation
+
   plug(
     OAuthScopesPlug,
     %{scopes: ["follow", "read:blocks"]} when action == :index
@@ -26,13 +29,13 @@ defmodule Pleroma.Web.MastodonAPI.DomainBlockController do
   end
 
   @doc "POST /api/v1/domain_blocks"
-  def create(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
+  def create(%{assigns: %{user: blocker}, body_params: %{domain: domain}} = conn, _params) do
     User.block_domain(blocker, domain)
     json(conn, %{})
   end
 
   @doc "DELETE /api/v1/domain_blocks"
-  def delete(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
+  def delete(%{assigns: %{user: blocker}, body_params: %{domain: domain}} = conn, _params) do
     User.unblock_domain(blocker, domain)
     json(conn, %{})
   end
diff --git a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
index 0c9218454..7fb536b09 100644
--- a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
@@ -5,7 +5,7 @@
 defmodule Pleroma.Web.MastodonAPI.NotificationController do
   use Pleroma.Web, :controller
 
-  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 2]
+  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 2, skip_relationships?: 1]
 
   alias Pleroma.Notification
   alias Pleroma.Plugs.OAuthScopesPlug
@@ -45,7 +45,11 @@ defmodule Pleroma.Web.MastodonAPI.NotificationController do
 
     conn
     |> add_link_headers(notifications)
-    |> render("index.json", notifications: notifications, for: user)
+    |> render("index.json",
+      notifications: notifications,
+      for: user,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   # GET /api/v1/notifications/:id
@@ -66,7 +70,8 @@ defmodule Pleroma.Web.MastodonAPI.NotificationController do
     json(conn, %{})
   end
 
-  # POST /api/v1/notifications/dismiss
+  # POST /api/v1/notifications/:id/dismiss
+  # POST /api/v1/notifications/dismiss (deprecated)
   def dismiss(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
     with {:ok, _notif} <- Notification.dismiss(user, id) do
       json(conn, %{})
diff --git a/lib/pleroma/web/mastodon_api/controllers/search_controller.ex b/lib/pleroma/web/mastodon_api/controllers/search_controller.ex
index fcab4ef63..c258742dd 100644
--- a/lib/pleroma/web/mastodon_api/controllers/search_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/search_controller.ex
@@ -5,13 +5,14 @@
 defmodule Pleroma.Web.MastodonAPI.SearchController do
   use Pleroma.Web, :controller
 
+  import Pleroma.Web.ControllerHelper, only: [fetch_integer_param: 2, skip_relationships?: 1]
+
   alias Pleroma.Activity
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.Plugs.RateLimiter
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web
-  alias Pleroma.Web.ControllerHelper
   alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.MastodonAPI.StatusView
 
@@ -66,10 +67,11 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
 
   defp search_options(params, user) do
     [
+      skip_relationships: skip_relationships?(params),
       resolve: params["resolve"] == "true",
       following: params["following"] == "true",
-      limit: ControllerHelper.fetch_integer_param(params, "limit"),
-      offset: ControllerHelper.fetch_integer_param(params, "offset"),
+      limit: fetch_integer_param(params, "limit"),
+      offset: fetch_integer_param(params, "offset"),
       type: params["type"],
       author: get_author(params),
       for_user: user
@@ -79,12 +81,24 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
 
   defp resource_search(_, "accounts", query, options) do
     accounts = with_fallback(fn -> User.search(query, options) end)
-    AccountView.render("index.json", users: accounts, for: options[:for_user], as: :user)
+
+    AccountView.render("index.json",
+      users: accounts,
+      for: options[:for_user],
+      as: :user,
+      skip_relationships: false
+    )
   end
 
   defp resource_search(_, "statuses", query, options) do
     statuses = with_fallback(fn -> Activity.search(options[:for_user], query, options) end)
-    StatusView.render("index.json", activities: statuses, for: options[:for_user], as: :activity)
+
+    StatusView.render("index.json",
+      activities: statuses,
+      for: options[:for_user],
+      as: :activity,
+      skip_relationships: options[:skip_relationships]
+    )
   end
 
   defp resource_search(:v2, "hashtags", query, _options) do
diff --git a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
index ec8f0d8a0..397dd10e3 100644
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@@ -5,7 +5,8 @@
 defmodule Pleroma.Web.MastodonAPI.StatusController do
   use Pleroma.Web, :controller
 
-  import Pleroma.Web.ControllerHelper, only: [try_render: 3, add_link_headers: 2]
+  import Pleroma.Web.ControllerHelper,
+    only: [try_render: 3, add_link_headers: 2, skip_relationships?: 1]
 
   require Ecto.Query
 
@@ -101,7 +102,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
 
   `ids` query param is required
   """
-  def index(%{assigns: %{user: user}} = conn, %{"ids" => ids}) do
+  def index(%{assigns: %{user: user}} = conn, %{"ids" => ids} = params) do
     limit = 100
 
     activities =
@@ -110,7 +111,12 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
       |> Activity.all_by_ids_with_object()
       |> Enum.filter(&Visibility.visible_for_user?(&1, user))
 
-    render(conn, "index.json", activities: activities, for: user, as: :activity)
+    render(conn, "index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   @doc """
@@ -360,7 +366,12 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
 
     conn
     |> add_link_headers(activities)
-    |> render("index.json", activities: activities, for: user, as: :activity)
+    |> render("index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   @doc "GET /api/v1/bookmarks"
@@ -378,6 +389,11 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
 
     conn
     |> add_link_headers(bookmarks)
-    |> render("index.json", %{activities: activities, for: user, as: :activity})
+    |> render("index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex b/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
index 91f41416d..b3c58005e 100644
--- a/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
   use Pleroma.Web, :controller
 
   import Pleroma.Web.ControllerHelper,
-    only: [add_link_headers: 2, add_link_headers: 3, truthy_param?: 1]
+    only: [add_link_headers: 2, add_link_headers: 3, truthy_param?: 1, skip_relationships?: 1]
 
   alias Pleroma.Pagination
   alias Pleroma.Plugs.OAuthScopesPlug
@@ -14,9 +14,8 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
 
-  # TODO: Replace with a macro when there is a Phoenix release with
+  # TODO: Replace with a macro when there is a Phoenix release with the following commit in it:
   # https://github.com/phoenixframework/phoenix/commit/2e8c63c01fec4dde5467dbbbf9705ff9e780735e
-  # in it
 
   plug(RateLimiter, [name: :timeline, bucket_name: :direct_timeline] when action == :direct)
   plug(RateLimiter, [name: :timeline, bucket_name: :public_timeline] when action == :public)
@@ -49,7 +48,12 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
 
     conn
     |> add_link_headers(activities)
-    |> render("index.json", activities: activities, for: user, as: :activity)
+    |> render("index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   # GET /api/v1/timelines/direct
@@ -68,7 +72,12 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
 
     conn
     |> add_link_headers(activities)
-    |> render("index.json", activities: activities, for: user, as: :activity)
+    |> render("index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   # GET /api/v1/timelines/public
@@ -95,7 +104,12 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
 
       conn
       |> add_link_headers(activities, %{"local" => local_only})
-      |> render("index.json", activities: activities, for: user, as: :activity)
+      |> render("index.json",
+        activities: activities,
+        for: user,
+        as: :activity,
+        skip_relationships: skip_relationships?(params)
+      )
     else
       render_error(conn, :unauthorized, "authorization required for timeline view")
     end
@@ -140,7 +154,12 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
 
     conn
     |> add_link_headers(activities, %{"local" => local_only})
-    |> render("index.json", activities: activities, for: user, as: :activity)
+    |> render("index.json",
+      activities: activities,
+      for: user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   # GET /api/v1/timelines/list/:list_id
@@ -164,7 +183,12 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
         |> ActivityPub.fetch_activities_bounded(following, params)
         |> Enum.reverse()
 
-      render(conn, "index.json", activities: activities, for: user, as: :activity)
+      render(conn, "index.json",
+        activities: activities,
+        for: user,
+        as: :activity,
+        skip_relationships: skip_relationships?(params)
+      )
     else
       _e -> render_error(conn, :forbidden, "Error.")
     end
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 99e62f580..8fb96a22a 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -15,6 +15,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
   def render("index.json", %{users: users} = opts) do
     reading_user = opts[:for]
 
+    # Note: :skip_relationships option is currently intentionally not supported for accounts
     relationships_opt =
       cond do
         Map.has_key?(opts, :relationships) ->
@@ -73,7 +74,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     followed_by =
       if following_relationships do
         case FollowingRelationship.find(following_relationships, target, reading_user) do
-          %{state: "accept"} -> true
+          %{state: :follow_accept} -> true
           _ -> false
         end
       else
@@ -83,7 +84,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     # NOTE: adjust UserRelationship.view_relationships_option/2 on new relation-related flags
     %{
       id: to_string(target.id),
-      following: follow_state == "accept",
+      following: follow_state == :follow_accept,
       followed_by: followed_by,
       blocking:
         UserRelationship.exists?(
@@ -125,7 +126,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
           reading_user,
           &User.subscribed_to?(&2, &1)
         ),
-      requested: follow_state == "pending",
+      requested: follow_state == :follow_pending,
       domain_blocking: User.blocks_domain?(reading_user, target),
       showing_reblogs:
         not UserRelationship.exists?(
@@ -192,11 +193,15 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
       end)
 
     relationship =
-      render("relationship.json", %{
-        user: opts[:for],
-        target: user,
-        relationships: opts[:relationships]
-      })
+      if opts[:skip_relationships] do
+        %{}
+      else
+        render("relationship.json", %{
+          user: opts[:for],
+          target: user,
+          relationships: opts[:relationships]
+        })
+      end
 
     %{
       id: to_string(user.id),
diff --git a/lib/pleroma/web/mastodon_api/views/notification_view.ex b/lib/pleroma/web/mastodon_api/views/notification_view.ex
index ae87d4701..734ffbf39 100644
--- a/lib/pleroma/web/mastodon_api/views/notification_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/notification_view.ex
@@ -51,14 +51,15 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
             |> Enum.filter(& &1)
             |> Kernel.++(move_activities_targets)
 
-          UserRelationship.view_relationships_option(reading_user, actors)
+          UserRelationship.view_relationships_option(reading_user, actors,
+            source_mutes_only: opts[:skip_relationships]
+          )
       end
 
-    opts = %{
-      for: reading_user,
-      parent_activities: parent_activities,
-      relationships: relationships_opt
-    }
+    opts =
+      opts
+      |> Map.put(:parent_activities, parent_activities)
+      |> Map.put(:relationships, relationships_opt)
 
     safe_render_many(notifications, NotificationView, "show.json", opts)
   end
@@ -82,12 +83,16 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
 
     mastodon_type = Activity.mastodon_notification_type(activity)
 
+    render_opts = %{
+      relationships: opts[:relationships],
+      skip_relationships: opts[:skip_relationships]
+    }
+
     with %{id: _} = account <-
-           AccountView.render("show.json", %{
-             user: actor,
-             for: reading_user,
-             relationships: opts[:relationships]
-           }) do
+           AccountView.render(
+             "show.json",
+             Map.merge(render_opts, %{user: actor, for: reading_user})
+           ) do
       response = %{
         id: to_string(notification.id),
         type: mastodon_type,
@@ -98,8 +103,6 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
         }
       }
 
-      render_opts = %{relationships: opts[:relationships]}
-
       case mastodon_type do
         "mention" ->
           put_status(response, activity, reading_user, render_opts)
@@ -111,6 +114,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
           put_status(response, parent_activity_fn.(), reading_user, render_opts)
 
         "move" ->
+          # Note: :skip_relationships option being applied to _account_ rendering (here)
           put_target(response, activity, reading_user, render_opts)
 
         "follow" ->
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index cea76e735..b5850e1ae 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -99,7 +99,9 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         true ->
           actors = Enum.map(activities ++ parent_activities, &get_user(&1.data["actor"]))
 
-          UserRelationship.view_relationships_option(reading_user, actors)
+          UserRelationship.view_relationships_option(reading_user, actors,
+            source_mutes_only: opts[:skip_relationships]
+          )
       end
 
     opts =
@@ -153,7 +155,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         AccountView.render("show.json", %{
           user: user,
           for: opts[:for],
-          relationships: opts[:relationships]
+          relationships: opts[:relationships],
+          skip_relationships: opts[:skip_relationships]
         }),
       in_reply_to_id: nil,
       in_reply_to_account_id: nil,
@@ -301,6 +304,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         _ -> []
       end
 
+    # Status muted state (would do 1 request per status unless user mutes are preloaded)
     muted =
       thread_muted? ||
         UserRelationship.exists?(
@@ -319,7 +323,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
         AccountView.render("show.json", %{
           user: user,
           for: opts[:for],
-          relationships: opts[:relationships]
+          relationships: opts[:relationships],
+          skip_relationships: opts[:skip_relationships]
         }),
       in_reply_to_id: reply_to && to_string(reply_to.id),
       in_reply_to_account_id: reply_to_user && to_string(reply_to_user.id),
diff --git a/lib/pleroma/web/pleroma_api/controllers/account_controller.ex b/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
index dcba67d03..9d0b3b1e4 100644
--- a/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/account_controller.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountController do
   use Pleroma.Web, :controller
 
   import Pleroma.Web.ControllerHelper,
-    only: [json_response: 3, add_link_headers: 2, assign_account_by_id: 2]
+    only: [json_response: 3, add_link_headers: 2, assign_account_by_id: 2, skip_relationships?: 1]
 
   alias Ecto.Changeset
   alias Pleroma.Plugs.OAuthScopesPlug
@@ -139,7 +139,12 @@ defmodule Pleroma.Web.PleromaAPI.AccountController do
     conn
     |> add_link_headers(activities)
     |> put_view(StatusView)
-    |> render("index.json", activities: activities, for: for_user, as: :activity)
+    |> render("index.json",
+      activities: activities,
+      for: for_user,
+      as: :activity,
+      skip_relationships: skip_relationships?(params)
+    )
   end
 
   @doc "POST /api/v1/pleroma/accounts/:id/subscribe"
diff --git a/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex b/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
index dae7f0f2f..d4c5c5925 100644
--- a/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/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: 2]
+  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 2, skip_relationships?: 1]
 
   alias Pleroma.Activity
   alias Pleroma.Conversation.Participation
@@ -110,12 +110,11 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
   end
 
   def conversation_statuses(
-        %{assigns: %{user: user}} = conn,
+        %{assigns: %{user: %{id: user_id} = user}} = conn,
         %{"id" => participation_id} = params
       ) do
-    with %Participation{} = participation <-
-           Participation.get(participation_id, preload: [:conversation]),
-         true <- user.id == participation.user_id do
+    with %Participation{user_id: ^user_id} = participation <-
+           Participation.get(participation_id, preload: [:conversation]) do
       params =
         params
         |> Map.put("blocking_user", user)
@@ -124,13 +123,19 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
 
       activities =
         participation.conversation.ap_id
-        |> ActivityPub.fetch_activities_for_context(params)
+        |> ActivityPub.fetch_activities_for_context_query(params)
+        |> Pleroma.Pagination.fetch_paginated(Map.put(params, "total", false))
         |> Enum.reverse()
 
       conn
       |> add_link_headers(activities)
       |> put_view(StatusView)
-      |> render("index.json", %{activities: activities, for: user, as: :activity})
+      |> render("index.json",
+        activities: activities,
+        for: user,
+        as: :activity,
+        skip_relationships: skip_relationships?(params)
+      )
     else
       _error ->
         conn
@@ -184,13 +189,17 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
     end
   end
 
-  def read_notification(%{assigns: %{user: user}} = conn, %{"max_id" => max_id}) do
+  def read_notification(%{assigns: %{user: user}} = conn, %{"max_id" => max_id} = params) do
     with notifications <- Notification.set_read_up_to(user, max_id) do
       notifications = Enum.take(notifications, 80)
 
       conn
       |> put_view(NotificationView)
-      |> render("index.json", %{notifications: notifications, for: user})
+      |> render("index.json",
+        notifications: notifications,
+        for: user,
+        skip_relationships: skip_relationships?(params)
+      )
     end
   end
 end
diff --git a/lib/pleroma/web/rich_media/helpers.ex b/lib/pleroma/web/rich_media/helpers.ex
index 0314535d2..9d3d7f978 100644
--- a/lib/pleroma/web/rich_media/helpers.ex
+++ b/lib/pleroma/web/rich_media/helpers.ex
@@ -64,5 +64,8 @@ defmodule Pleroma.Web.RichMedia.Helpers do
 
   def fetch_data_for_activity(_), do: %{}
 
-  def perform(:fetch, %Activity{} = activity), do: fetch_data_for_activity(activity)
+  def perform(:fetch, %Activity{} = activity) do
+    fetch_data_for_activity(activity)
+    :ok
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index ce69725dc..b10bf4466 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -361,9 +361,11 @@ defmodule Pleroma.Web.Router do
 
     get("/notifications", NotificationController, :index)
     get("/notifications/:id", NotificationController, :show)
+    post("/notifications/:id/dismiss", NotificationController, :dismiss)
     post("/notifications/clear", NotificationController, :clear)
-    post("/notifications/dismiss", NotificationController, :dismiss)
     delete("/notifications/destroy_multiple", NotificationController, :destroy_multiple)
+    # Deprecated: was removed in Mastodon v3, use `/notifications/:id/dismiss` instead
+    post("/notifications/dismiss", NotificationController, :dismiss)
 
     get("/scheduled_statuses", ScheduledActivityController, :index)
     get("/scheduled_statuses/:id", ScheduledActivityController, :show)