Merge remote-tracking branch 'pleroma/develop' into mastodon-lookup

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

31 files changed, 622 insertions, 61 deletions

diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 9824e0a4a..952579c7f 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -61,6 +61,11 @@ defmodule Pleroma.Application do
 
     adapter = Application.get_env(:tesla, :adapter)
 
+    if match?({Tesla.Adapter.Finch, _}, adapter) do
+      Logger.info("Starting Finch")
+      Finch.start_link(name: MyFinch)
+    end
+
     if adapter == Tesla.Adapter.Gun do
       if version = Pleroma.OTPVersion.version() do
         [major, minor] =
diff --git a/lib/pleroma/reverse_proxy/client/wrapper.ex b/lib/pleroma/reverse_proxy/client/wrapper.ex
index 06dd29fea..ce144559f 100644
--- a/lib/pleroma/reverse_proxy/client/wrapper.ex
+++ b/lib/pleroma/reverse_proxy/client/wrapper.ex
@@ -25,5 +25,6 @@ defmodule Pleroma.ReverseProxy.Client.Wrapper do
 
   defp client(Tesla.Adapter.Hackney), do: Pleroma.ReverseProxy.Client.Hackney
   defp client(Tesla.Adapter.Gun), do: Pleroma.ReverseProxy.Client.Tesla
+  defp client({Tesla.Adapter.Finch, _}), do: Pleroma.ReverseProxy.Client.Hackney
   defp client(_), do: Pleroma.Config.get!(Pleroma.ReverseProxy.Client)
 end
diff --git a/lib/pleroma/telemetry/logger.ex b/lib/pleroma/telemetry/logger.ex
index 10165c1b2..35e245237 100644
--- a/lib/pleroma/telemetry/logger.ex
+++ b/lib/pleroma/telemetry/logger.ex
@@ -12,10 +12,16 @@ defmodule Pleroma.Telemetry.Logger do
     [:pleroma, :connection_pool, :reclaim, :stop],
     [:pleroma, :connection_pool, :provision_failure],
     [:pleroma, :connection_pool, :client, :dead],
-    [:pleroma, :connection_pool, :client, :add]
+    [:pleroma, :connection_pool, :client, :add],
+    [:pleroma, :repo, :query]
   ]
   def attach do
-    :telemetry.attach_many("pleroma-logger", @events, &handle_event/4, [])
+    :telemetry.attach_many(
+      "pleroma-logger",
+      @events,
+      &Pleroma.Telemetry.Logger.handle_event/4,
+      []
+    )
   end
 
   # Passing anonymous functions instead of strings to logger is intentional,
@@ -87,4 +93,64 @@ defmodule Pleroma.Telemetry.Logger do
   end
 
   def handle_event([:pleroma, :connection_pool, :client, :add], _, _, _), do: :ok
+
+  def handle_event(
+        [:pleroma, :repo, :query] = _name,
+        %{query_time: query_time} = measurements,
+        %{source: source} = metadata,
+        config
+      ) do
+    logging_config = Pleroma.Config.get([:telemetry, :slow_queries_logging], [])
+
+    if logging_config[:enabled] &&
+         logging_config[:min_duration] &&
+         query_time > logging_config[:min_duration] and
+         (is_nil(logging_config[:exclude_sources]) or
+            source not in logging_config[:exclude_sources]) do
+      log_slow_query(measurements, metadata, config)
+    else
+      :ok
+    end
+  end
+
+  defp log_slow_query(
+         %{query_time: query_time} = _measurements,
+         %{source: _source, query: query, params: query_params, repo: repo} = _metadata,
+         _config
+       ) do
+    sql_explain =
+      with {:ok, %{rows: explain_result_rows}} <-
+             repo.query("EXPLAIN " <> query, query_params, log: false) do
+        Enum.map_join(explain_result_rows, "\n", & &1)
+      end
+
+    {:current_stacktrace, stacktrace} = Process.info(self(), :current_stacktrace)
+
+    pleroma_stacktrace =
+      Enum.filter(stacktrace, fn
+        {__MODULE__, _, _, _} ->
+          false
+
+        {mod, _, _, _} ->
+          mod
+          |> to_string()
+          |> String.starts_with?("Elixir.Pleroma.")
+      end)
+
+    Logger.warn(fn ->
+      """
+      Slow query!
+
+      Total time: #{round(query_time / 1_000)} ms
+
+      #{query}
+
+      #{inspect(query_params, limit: :infinity)}
+
+      #{sql_explain}
+
+      #{Exception.format_stacktrace(pleroma_stacktrace)}
+      """
+    end)
+  end
 end
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index c25023dc1..390de1e2d 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -149,6 +149,7 @@ defmodule Pleroma.User do
     field(:disclose_client, :boolean, default: true)
     field(:pinned_objects, :map, default: %{})
     field(:is_suggested, :boolean, default: false)
+    field(:last_status_at, :naive_datetime)
 
     embeds_one(
       :notification_settings,
@@ -2499,4 +2500,16 @@ defmodule Pleroma.User do
     |> where([u], u.local == true)
     |> Repo.aggregate(:count)
   end
+
+  def update_last_status_at(user) do
+    User
+    |> where(id: ^user.id)
+    |> update([u], set: [last_status_at: fragment("NOW()")])
+    |> select([u], u)
+    |> Repo.update_all([])
+    |> case do
+      {1, [user]} -> set_cache(user)
+      _ -> {:error, user}
+    end
+  end
 end
diff --git a/lib/pleroma/user/query.ex b/lib/pleroma/user/query.ex
index 6d4a4ead6..bf78cb32d 100644
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@@ -47,6 +47,7 @@ defmodule Pleroma.User.Query do
             is_admin: boolean(),
             is_moderator: boolean(),
             is_suggested: boolean(),
+            is_discoverable: boolean(),
             super_users: boolean(),
             invisible: boolean(),
             internal: boolean(),
@@ -172,6 +173,10 @@ defmodule Pleroma.User.Query do
     where(query, [u], u.is_suggested == ^bool)
   end
 
+  defp compose_query({:is_discoverable, bool}, query) do
+    where(query, [u], u.is_discoverable == ^bool)
+  end
+
   defp compose_query({:followers, %User{id: id}}, query) do
     query
     |> where([u], u.id != ^id)
diff --git a/lib/pleroma/user_note.ex b/lib/pleroma/user_note.ex
new file mode 100644
index 000000000..5e82d359f
--- /dev/null
+++ b/lib/pleroma/user_note.ex
@@ -0,0 +1,52 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.UserNote do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+  import Ecto.Query
+
+  alias Pleroma.Repo
+  alias Pleroma.User
+  alias Pleroma.UserNote
+
+  schema "user_notes" do
+    belongs_to(:source, User, type: FlakeId.Ecto.CompatType)
+    belongs_to(:target, User, type: FlakeId.Ecto.CompatType)
+    field(:comment, :string)
+
+    timestamps()
+  end
+
+  def changeset(%UserNote{} = user_note, params \\ %{}) do
+    user_note
+    |> cast(params, [:source_id, :target_id, :comment])
+    |> validate_required([:source_id, :target_id])
+  end
+
+  def show(%User{} = source, %User{} = target) do
+    with %UserNote{} = note <-
+           UserNote
+           |> where(source_id: ^source.id, target_id: ^target.id)
+           |> Repo.one() do
+      note.comment
+    else
+      _ -> ""
+    end
+  end
+
+  def create(%User{} = source, %User{} = target, comment) do
+    %UserNote{}
+    |> changeset(%{
+      source_id: source.id,
+      target_id: target.id,
+      comment: comment
+    })
+    |> Repo.insert(
+      on_conflict: {:replace, [:comment]},
+      conflict_target: [:source_id, :target_id]
+    )
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 8324ca22c..756096952 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -81,6 +81,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     if is_public?(object), do: User.decrease_note_count(actor), else: {:ok, actor}
   end
 
+  def update_last_status_at_if_public(actor, object) do
+    if is_public?(object), do: User.update_last_status_at(actor), else: {:ok, actor}
+  end
+
   defp increase_replies_count_if_reply(%{
          "object" => %{"inReplyTo" => reply_ap_id} = object,
          "type" => "Create"
@@ -288,6 +292,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          _ <- increase_replies_count_if_reply(create_data),
          {:quick_insert, false, activity} <- {:quick_insert, quick_insert?, activity},
          {:ok, _actor} <- increase_note_count_if_public(actor, activity),
+         {:ok, _actor} <- update_last_status_at_if_public(actor, activity),
          _ <- notify_and_stream(activity),
          :ok <- maybe_schedule_poll_notifications(activity),
          :ok <- maybe_federate(activity) do
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
index d55a4b340..39d37fbcb 100644
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -199,6 +199,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
          %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
       {:ok, notifications} = Notification.create_notifications(activity, do_send: false)
       {:ok, _user} = ActivityPub.increase_note_count_if_public(user, object)
+      {:ok, _user} = ActivityPub.update_last_status_at_if_public(user, object)
 
       if in_reply_to = object.data["type"] != "Answer" && object.data["inReplyTo"] do
         Object.increase_replies_count(in_reply_to)
diff --git a/lib/pleroma/web/api_spec/operations/account_operation.ex b/lib/pleroma/web/api_spec/operations/account_operation.ex
index 5836cab50..f5304d7d6 100644
--- a/lib/pleroma/web/api_spec/operations/account_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/account_operation.ex
@@ -226,6 +226,12 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
                 type: :boolean,
                 description: "Receive this account's reblogs in home timeline? Defaults to true.",
                 default: true
+              },
+              notify: %Schema{
+                type: :boolean,
+                description:
+                  "Receive notifications for all statuses posted by the account? Defaults to false.",
+                default: false
               }
             }
           },
@@ -328,6 +334,29 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
     }
   end
 
+  def note_operation do
+    %Operation{
+      tags: ["Account actions"],
+      summary: "Set a private note about a user.",
+      operationId: "AccountController.note",
+      security: [%{"oAuth" => ["follow", "write:accounts"]}],
+      requestBody: request_body("Parameters", note_request()),
+      description: "Create a note for the given account.",
+      parameters: [
+        %Reference{"$ref": "#/components/parameters/accountIdOrNickname"},
+        Operation.parameter(
+          :comment,
+          :query,
+          %Schema{type: :string},
+          "Account note body"
+        )
+      ],
+      responses: %{
+        200 => Operation.response("Relationship", "application/json", AccountRelationship)
+      }
+    }
+  end
+
   def follow_by_uri_operation do
     %Operation{
       tags: ["Account actions"],
@@ -705,9 +734,11 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           "blocked_by" => true,
           "muting" => false,
           "muting_notifications" => false,
+          "note" => "",
           "requested" => false,
           "domain_blocking" => false,
           "subscribing" => false,
+          "notifying" => false,
           "endorsed" => true
         },
         %{
@@ -719,9 +750,11 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           "blocked_by" => true,
           "muting" => true,
           "muting_notifications" => false,
+          "note" => "",
           "requested" => true,
           "domain_blocking" => false,
           "subscribing" => false,
+          "notifying" => false,
           "endorsed" => false
         },
         %{
@@ -733,9 +766,11 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
           "blocked_by" => false,
           "muting" => true,
           "muting_notifications" => false,
+          "note" => "",
           "requested" => false,
           "domain_blocking" => true,
           "subscribing" => true,
+          "notifying" => true,
           "endorsed" => false
         }
       ]
@@ -780,6 +815,23 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
     }
   end
 
+  defp note_request do
+    %Schema{
+      title: "AccountNoteRequest",
+      description: "POST body for adding a note for an account",
+      type: :object,
+      properties: %{
+        comment: %Schema{
+          type: :string,
+          description: "Account note body"
+        }
+      },
+      example: %{
+        "comment" => "Example note"
+      }
+    }
+  end
+
   defp array_of_lists do
     %Schema{
       title: "ArrayOfLists",
diff --git a/lib/pleroma/web/api_spec/operations/app_operation.ex b/lib/pleroma/web/api_spec/operations/app_operation.ex
index dfb1c7170..2284ac127 100644
--- a/lib/pleroma/web/api_spec/operations/app_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/app_operation.ex
@@ -6,6 +6,7 @@ defmodule Pleroma.Web.ApiSpec.AppOperation do
   alias OpenApiSpex.Operation
   alias OpenApiSpex.Schema
   alias Pleroma.Web.ApiSpec.Helpers
+  alias Pleroma.Web.ApiSpec.Schemas.App
 
   @spec open_api_operation(atom) :: Operation.t()
   def open_api_operation(action) do
@@ -22,7 +23,7 @@ defmodule Pleroma.Web.ApiSpec.AppOperation do
       operationId: "AppController.create",
       requestBody: Helpers.request_body("Parameters", create_request(), required: true),
       responses: %{
-        200 => Operation.response("App", "application/json", create_response()),
+        200 => Operation.response("App", "application/json", App),
         422 =>
           Operation.response(
             "Unprocessable Entity",
@@ -119,30 +120,4 @@ defmodule Pleroma.Web.ApiSpec.AppOperation do
       }
     }
   end
-
-  defp create_response do
-    %Schema{
-      title: "AppCreateResponse",
-      description: "Response schema for an app",
-      type: :object,
-      properties: %{
-        id: %Schema{type: :string},
-        name: %Schema{type: :string},
-        client_id: %Schema{type: :string},
-        client_secret: %Schema{type: :string},
-        redirect_uri: %Schema{type: :string},
-        vapid_key: %Schema{type: :string},
-        website: %Schema{type: :string, nullable: true}
-      },
-      example: %{
-        "id" => "123",
-        "name" => "My App",
-        "client_id" => "TWhM-tNSuncnqN7DBJmoyeLnk6K3iJJ71KKXxgL1hPM",
-        "client_secret" => "ZEaFUFmF0umgBX1qKJDjaU99Q31lDkOU8NutzTOoliw",
-        "vapid_key" =>
-          "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M=",
-        "website" => "https://myapp.com/"
-      }
-    }
-  end
 end
diff --git a/lib/pleroma/web/api_spec/operations/directory_operation.ex b/lib/pleroma/web/api_spec/operations/directory_operation.ex
new file mode 100644
index 000000000..9be965feb
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/directory_operation.ex
@@ -0,0 +1,41 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.DirectoryOperation do
+  alias OpenApiSpex.Operation
+  alias Pleroma.Web.ApiSpec.AccountOperation
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.BooleanLike
+
+  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: ["Directory"],
+      summary: "Profile directory",
+      operationId: "DirectoryController.index",
+      parameters:
+        [
+          Operation.parameter(
+            :order,
+            :query,
+            :string,
+            "Order by recent activity or account creation",
+            required: nil
+          ),
+          Operation.parameter(:local, :query, BooleanLike, "Include local users only")
+        ] ++ pagination_params(),
+      responses: %{
+        200 =>
+          Operation.response("Accounts", "application/json", AccountOperation.array_of_accounts()),
+        404 => Operation.response("Not Found", "application/json", ApiError)
+      }
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/pleroma_app_operation.ex b/lib/pleroma/web/api_spec/operations/pleroma_app_operation.ex
new file mode 100644
index 000000000..582a169ee
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/pleroma_app_operation.ex
@@ -0,0 +1,31 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.PleromaAppOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.App
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  @spec index_operation() :: Operation.t()
+  def index_operation do
+    %Operation{
+      tags: ["Applications"],
+      summary: "List applications",
+      description: "List the OAuth applications for the current user",
+      operationId: "AppController.index",
+      responses: %{
+        200 => Operation.response("Array of App", "application/json", array_of_apps())
+      }
+    }
+  end
+
+  defp array_of_apps do
+    %Schema{type: :array, items: App, example: [App.schema().example]}
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/twitter_util_operation.ex b/lib/pleroma/web/api_spec/operations/twitter_util_operation.ex
index 5a2b0bc49..2a701066d 100644
--- a/lib/pleroma/web/api_spec/operations/twitter_util_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/twitter_util_operation.ex
@@ -239,6 +239,32 @@ defmodule Pleroma.Web.ApiSpec.TwitterUtilOperation do
     }
   end
 
+  def remote_interaction_operation do
+    %Operation{
+      tags: ["Accounts"],
+      summary: "Remote interaction",
+      operationId: "UtilController.remote_interaction",
+      requestBody: request_body("Parameters", remote_interaction_request(), required: true),
+      responses: %{
+        200 =>
+          Operation.response("Remote interaction URL", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+
+  defp remote_interaction_request do
+    %Schema{
+      title: "RemoteInteractionRequest",
+      description: "POST body for remote interaction",
+      type: :object,
+      required: [:ap_id, :profile],
+      properties: %{
+        ap_id: %Schema{type: :string, description: "Profile or status ActivityPub ID"},
+        profile: %Schema{type: :string, description: "Remote profile webfinger"}
+      }
+    }
+  end
+
   defp delete_account_request do
     %Schema{
       title: "AccountDeleteRequest",
diff --git a/lib/pleroma/web/api_spec/schemas/account.ex b/lib/pleroma/web/api_spec/schemas/account.ex
index bd7143ab9..548e70544 100644
--- a/lib/pleroma/web/api_spec/schemas/account.ex
+++ b/lib/pleroma/web/api_spec/schemas/account.ex
@@ -194,9 +194,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Account do
           "id" => "9tKi3esbG7OQgZ2920",
           "muting" => false,
           "muting_notifications" => false,
+          "note" => "",
           "requested" => false,
           "showing_reblogs" => true,
-          "subscribing" => false
+          "subscribing" => false,
+          "notifying" => false
         },
         "settings_store" => %{
           "pleroma-fe" => %{}
diff --git a/lib/pleroma/web/api_spec/schemas/account_relationship.ex b/lib/pleroma/web/api_spec/schemas/account_relationship.ex
index 16b73ebb4..5d9e3b56e 100644
--- a/lib/pleroma/web/api_spec/schemas/account_relationship.ex
+++ b/lib/pleroma/web/api_spec/schemas/account_relationship.ex
@@ -22,9 +22,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.AccountRelationship do
       id: FlakeID,
       muting: %Schema{type: :boolean},
       muting_notifications: %Schema{type: :boolean},
+      note: %Schema{type: :string},
       requested: %Schema{type: :boolean},
       showing_reblogs: %Schema{type: :boolean},
-      subscribing: %Schema{type: :boolean}
+      subscribing: %Schema{type: :boolean},
+      notifying: %Schema{type: :boolean}
     },
     example: %{
       "blocked_by" => false,
@@ -36,9 +38,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.AccountRelationship do
       "id" => "9tKi3esbG7OQgZ2920",
       "muting" => false,
       "muting_notifications" => false,
+      "note" => "",
       "requested" => false,
       "showing_reblogs" => true,
-      "subscribing" => false
+      "subscribing" => false,
+      "notifying" => false
     }
   })
 end
diff --git a/lib/pleroma/web/api_spec/schemas/app.ex b/lib/pleroma/web/api_spec/schemas/app.ex
new file mode 100644
index 000000000..c3d1af3be
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/app.ex
@@ -0,0 +1,33 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.App do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "App",
+    description: "Response schema for an app",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string},
+      name: %Schema{type: :string},
+      client_id: %Schema{type: :string},
+      client_secret: %Schema{type: :string},
+      redirect_uri: %Schema{type: :string},
+      vapid_key: %Schema{type: :string},
+      website: %Schema{type: :string, nullable: true}
+    },
+    example: %{
+      "id" => "123",
+      "name" => "My App",
+      "client_id" => "TWhM-tNSuncnqN7DBJmoyeLnk6K3iJJ71KKXxgL1hPM",
+      "client_secret" => "ZEaFUFmF0umgBX1qKJDjaU99Q31lDkOU8NutzTOoliw",
+      "vapid_key" =>
+        "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M=",
+      "website" => "https://myapp.com/"
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/status.ex b/lib/pleroma/web/api_spec/schemas/status.ex
index 3d042dc19..3caab0f00 100644
--- a/lib/pleroma/web/api_spec/schemas/status.ex
+++ b/lib/pleroma/web/api_spec/schemas/status.ex
@@ -282,9 +282,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Status do
             "id" => "9toJCsKN7SmSf3aj5c",
             "muting" => false,
             "muting_notifications" => false,
+            "note" => "",
             "requested" => false,
             "showing_reblogs" => true,
-            "subscribing" => false
+            "subscribing" => false,
+            "notifying" => false
           },
           "skip_thread_containment" => false,
           "tags" => []
diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index 3eae0a646..399a34217 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -15,6 +15,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
 
   alias Pleroma.Maps
   alias Pleroma.User
+  alias Pleroma.UserNote
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.ActivityPub.Pipeline
@@ -53,7 +54,11 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
     when action in [:verify_credentials, :endorsements, :identity_proofs]
   )
 
-  plug(OAuthScopesPlug, %{scopes: ["write:accounts"]} when action == :update_credentials)
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write:accounts"]}
+    when action in [:update_credentials, :note]
+  )
 
   plug(OAuthScopesPlug, %{scopes: ["read:lists"]} when action == :lists)
 
@@ -79,7 +84,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   plug(OAuthScopesPlug, %{scopes: ["follow", "write:mutes"]} when action in [:mute, :unmute])
 
   @relationship_actions [:follow, :unfollow]
-  @needs_account ~W(followers following lists follow unfollow mute unmute block unblock)a
+  @needs_account ~W(followers following lists follow unfollow mute unmute block unblock note)a
 
   plug(
     RateLimiter,
@@ -435,6 +440,16 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
     end
   end
 
+  @doc "POST /api/v1/accounts/:id/note"
+  def note(
+        %{assigns: %{user: noter, account: target}, body_params: %{comment: comment}} = conn,
+        _params
+      ) do
+    with {:ok, _user_note} <- UserNote.create(noter, target, comment) do
+      render(conn, "relationship.json", user: noter, target: target)
+    end
+  end
+
   @doc "POST /api/v1/follows"
   def follow_by_uri(%{body_params: %{uri: uri}} = conn, _) do
     case User.get_cached_by_nickname(uri) do
diff --git a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
index 93e63ba03..8d18140ad 100644
--- a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
@@ -10,7 +10,9 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
 
   use Pleroma.Web, :controller
 
+  alias Pleroma.Maps
   alias Pleroma.Repo
+  alias Pleroma.User
   alias Pleroma.Web.OAuth.App
   alias Pleroma.Web.OAuth.Scopes
   alias Pleroma.Web.OAuth.Token
@@ -26,11 +28,13 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
   @doc "POST /api/v1/apps"
   def create(%{body_params: params} = conn, _params) do
     scopes = Scopes.fetch_scopes(params, ["read"])
+    user_id = get_user_id(conn)
 
     app_attrs =
       params
       |> Map.take([:client_name, :redirect_uris, :website])
       |> Map.put(:scopes, scopes)
+      |> Maps.put_if_present(:user_id, user_id)
 
     with cs <- App.register_changeset(%App{}, app_attrs),
          {:ok, app} <- Repo.insert(cs) do
@@ -38,6 +42,9 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
     end
   end
 
+  defp get_user_id(%{assigns: %{user: %User{id: user_id}}}), do: user_id
+  defp get_user_id(_conn), do: nil
+
   @doc """
   GET /api/v1/apps/verify_credentials
   Gets compact non-secret representation of the app. Supports app tokens and user tokens.
diff --git a/lib/pleroma/web/mastodon_api/controllers/directory_controller.ex b/lib/pleroma/web/mastodon_api/controllers/directory_controller.ex
new file mode 100644
index 000000000..45ef227fb
--- /dev/null
+++ b/lib/pleroma/web/mastodon_api/controllers/directory_controller.ex
@@ -0,0 +1,82 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.MastodonAPI.DirectoryController do
+  use Pleroma.Web, :controller
+
+  import Ecto.Query
+  alias Pleroma.Pagination
+  alias Pleroma.User
+  alias Pleroma.UserRelationship
+  alias Pleroma.Web.MastodonAPI.AccountView
+
+  require Logger
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
+  plug(:skip_auth when action == "index")
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.DirectoryOperation
+
+  @doc "GET /api/v1/directory"
+  def index(%{assigns: %{user: user}} = conn, params) do
+    with true <- Pleroma.Config.get([:instance, :profile_directory]) do
+      limit = Map.get(params, :limit, 20) |> min(80)
+
+      users =
+        User.Query.build(%{is_discoverable: true, invisible: false, limit: limit})
+        |> order_by_creation_date(params)
+        |> exclude_remote(params)
+        |> exclude_user(user)
+        |> exclude_relationships(user, [:block, :mute])
+        |> Pagination.fetch_paginated(params, :offset)
+
+      conn
+      |> put_view(AccountView)
+      |> render("index.json", for: user, users: users, as: :user)
+    else
+      _ -> json(conn, [])
+    end
+  end
+
+  defp order_by_creation_date(query, %{order: "new"}) do
+    query
+  end
+
+  defp order_by_creation_date(query, _params) do
+    query
+    |> order_by([u], desc_nulls_last: u.last_status_at)
+  end
+
+  defp exclude_remote(query, %{local: true}) do
+    where(query, [u], u.local == true)
+  end
+
+  defp exclude_remote(query, _params) do
+    query
+  end
+
+  defp exclude_user(query, %User{id: user_id}) do
+    where(query, [u], u.id != ^user_id)
+  end
+
+  defp exclude_user(query, _user) do
+    query
+  end
+
+  defp exclude_relationships(query, %User{id: user_id}, relationship_types) do
+    query
+    |> join(:left, [u], r in UserRelationship,
+      as: :user_relationships,
+      on:
+        r.target_id == u.id and r.source_id == ^user_id and
+          r.relationship_type in ^relationship_types
+    )
+    |> where([user_relationships: r], is_nil(r.target_id))
+  end
+
+  defp exclude_relationships(query, _user, _relationship_types) do
+    query
+  end
+end
diff --git a/lib/pleroma/web/mastodon_api/mastodon_api.ex b/lib/pleroma/web/mastodon_api/mastodon_api.ex
index 71479550e..23846b36a 100644
--- a/lib/pleroma/web/mastodon_api/mastodon_api.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api.ex
@@ -24,6 +24,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
     with {:ok, follower, _followed, _} <- result do
       options = cast_params(params)
       set_reblogs_visibility(options[:reblogs], result)
+      set_subscription(options[:notify], result)
       {:ok, follower}
     end
   end
@@ -36,6 +37,16 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
     CommonAPI.show_reblogs(follower, followed)
   end
 
+  defp set_subscription(true, {:ok, follower, followed, _}) do
+    User.subscribe(follower, followed)
+  end
+
+  defp set_subscription(false, {:ok, follower, followed, _}) do
+    User.unsubscribe(follower, followed)
+  end
+
+  defp set_subscription(_, _), do: {:ok, nil}
+
   @spec get_followers(User.t(), map()) :: list(User.t())
   def get_followers(user, params \\ %{}) do
     user
@@ -73,7 +84,8 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
       exclude_visibilities: {:array, :string},
       reblogs: :boolean,
       with_muted: :boolean,
-      account_ap_id: :string
+      account_ap_id: :string,
+      notify: :boolean
     }
 
     changeset = cast({%{}, param_types}, params, Map.keys(param_types))
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 6114e12b1..4b15b1635 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -7,6 +7,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
 
   alias Pleroma.FollowingRelationship
   alias Pleroma.User
+  alias Pleroma.UserNote
   alias Pleroma.UserRelationship
   alias Pleroma.Web.CommonAPI.Utils
   alias Pleroma.Web.MastodonAPI.AccountView
@@ -101,6 +102,15 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
         User.following?(target, reading_user)
       end
 
+    subscribing =
+      UserRelationship.exists?(
+        user_relationships,
+        :inverse_subscription,
+        target,
+        reading_user,
+        &User.subscribed_to?(&2, &1)
+      )
+
     # NOTE: adjust UserRelationship.view_relationships_option/2 on new relation-related flags
     %{
       id: to_string(target.id),
@@ -138,14 +148,8 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
           target,
           &User.muted_notifications?(&1, &2)
         ),
-      subscribing:
-        UserRelationship.exists?(
-          user_relationships,
-          :inverse_subscription,
-          target,
-          reading_user,
-          &User.subscribed_to?(&2, &1)
-        ),
+      subscribing: subscribing,
+      notifying: subscribing,
       requested: follow_state == :follow_pending,
       domain_blocking: User.blocks_domain?(reading_user, target),
       showing_reblogs:
@@ -156,7 +160,12 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
           target,
           &User.muting_reblogs?(&1, &2)
         ),
-      endorsed: false
+      endorsed: false,
+      note:
+        UserNote.show(
+          reading_user,
+          target
+        )
     }
   end
 
@@ -261,6 +270,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
           actor_type: user.actor_type
         }
       },
+      last_status_at: user.last_status_at,
 
       # Pleroma extensions
       # Note: it's insecure to output :email but fully-qualified nickname may serve as safe stub
diff --git a/lib/pleroma/web/mastodon_api/views/instance_view.ex b/lib/pleroma/web/mastodon_api/views/instance_view.ex
index ec7d150a9..8e657ee0f 100644
--- a/lib/pleroma/web/mastodon_api/views/instance_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/instance_view.ex
@@ -45,7 +45,8 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
           features: features(),
           federation: federation(),
           fields_limits: fields_limits(),
-          post_formats: Config.get([:instance, :allowed_post_formats])
+          post_formats: Config.get([:instance, :allowed_post_formats]),
+          privileged_staff: Config.get([:instance, :privileged_staff])
         },
         stats: %{mau: Pleroma.User.active_user_count()},
         vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
@@ -87,6 +88,9 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
       "pleroma_chat_messages",
       if Config.get([:instance, :show_reactions]) do
         "exposable_reactions"
+      end,
+      if Config.get([:instance, :profile_directory]) do
+        "profile_directory"
       end
     ]
     |> Enum.filter(& &1)
diff --git a/lib/pleroma/web/nodeinfo/nodeinfo.ex b/lib/pleroma/web/nodeinfo/nodeinfo.ex
index 3781781c8..80a2ce676 100644
--- a/lib/pleroma/web/nodeinfo/nodeinfo.ex
+++ b/lib/pleroma/web/nodeinfo/nodeinfo.ex
@@ -69,7 +69,8 @@ defmodule Pleroma.Web.Nodeinfo.Nodeinfo do
         mailerEnabled: Config.get([Pleroma.Emails.Mailer, :enabled], false),
         features: features,
         restrictedNicknames: Config.get([Pleroma.User, :restricted_nicknames]),
-        skipThreadContainment: Config.get([:instance, :skip_thread_containment], false)
+        skipThreadContainment: Config.get([:instance, :skip_thread_containment], false),
+        privilegedStaff: Config.get([:instance, :privileged_staff])
       }
     }
   end
diff --git a/lib/pleroma/web/o_auth/app.ex b/lib/pleroma/web/o_auth/app.ex
index 382750010..dacfbadc8 100644
--- a/lib/pleroma/web/o_auth/app.ex
+++ b/lib/pleroma/web/o_auth/app.ex
@@ -7,6 +7,7 @@ defmodule Pleroma.Web.OAuth.App do
   import Ecto.Changeset
   import Ecto.Query
   alias Pleroma.Repo
+  alias Pleroma.User
 
   @type t :: %__MODULE__{}
 
@@ -19,6 +20,8 @@ defmodule Pleroma.Web.OAuth.App do
     field(:client_secret, :string)
     field(:trusted, :boolean, default: false)
 
+    belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
+
     has_many(:oauth_authorizations, Pleroma.Web.OAuth.Authorization, on_delete: :delete_all)
     has_many(:oauth_tokens, Pleroma.Web.OAuth.Token, on_delete: :delete_all)
 
@@ -27,7 +30,7 @@ defmodule Pleroma.Web.OAuth.App do
 
   @spec changeset(t(), map()) :: Ecto.Changeset.t()
   def changeset(struct, params) do
-    cast(struct, params, [:client_name, :redirect_uris, :scopes, :website, :trusted])
+    cast(struct, params, [:client_name, :redirect_uris, :scopes, :website, :trusted, :user_id])
   end
 
   @spec register_changeset(t(), map()) :: Ecto.Changeset.t()
@@ -129,6 +132,12 @@ defmodule Pleroma.Web.OAuth.App do
     {:ok, Repo.all(query), count}
   end
 
+  @spec get_user_apps(User.t()) :: {:ok, [t()], non_neg_integer()}
+  def get_user_apps(%User{id: user_id}) do
+    from(a in __MODULE__, where: a.user_id == ^user_id)
+    |> Repo.all()
+  end
+
   @spec destroy(pos_integer()) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
   def destroy(id) do
     with %__MODULE__{} = app <- Repo.get(__MODULE__, id) do
diff --git a/lib/pleroma/web/pleroma_api/controllers/app_controller.ex b/lib/pleroma/web/pleroma_api/controllers/app_controller.ex
new file mode 100644
index 000000000..d857f424f
--- /dev/null
+++ b/lib/pleroma/web/pleroma_api/controllers/app_controller.ex
@@ -0,0 +1,23 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.AppController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Web.OAuth.App
+  alias Pleroma.Web.Plugs.OAuthScopesPlug
+
+  plug(OAuthScopesPlug, %{scopes: ["follow", "read"]} when action in [:index])
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.PleromaAppOperation
+
+  @doc "GET /api/v1/pleroma/apps"
+  def index(%{assigns: %{user: user}} = conn, _params) do
+    with apps <- App.get_user_apps(user) do
+      render(conn, "index.json", %{apps: apps})
+    end
+  end
+end
diff --git a/lib/pleroma/web/pleroma_api/views/app_view.ex b/lib/pleroma/web/pleroma_api/views/app_view.ex
new file mode 100644
index 000000000..6b5d838f5
--- /dev/null
+++ b/lib/pleroma/web/pleroma_api/views/app_view.ex
@@ -0,0 +1,11 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.AppView do
+  use Pleroma.Web, :view
+
+  def render("index.json", %{apps: apps}) do
+    render_many(apps, Pleroma.Web.MastodonAPI.AppView, "show.json")
+  end
+end
diff --git a/lib/pleroma/web/plugs/ensure_staff_privileged_plug.ex b/lib/pleroma/web/plugs/ensure_staff_privileged_plug.ex
new file mode 100644
index 000000000..c6ed45635
--- /dev/null
+++ b/lib/pleroma/web/plugs/ensure_staff_privileged_plug.ex
@@ -0,0 +1,36 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Plugs.EnsureStaffPrivilegedPlug do
+  @moduledoc """
+  Ensures staff are privileged enough to do certain tasks.
+  """
+  import Pleroma.Web.TranslationHelpers
+  import Plug.Conn
+
+  alias Pleroma.Config
+  alias Pleroma.User
+
+  def init(options) do
+    options
+  end
+
+  def call(%{assigns: %{user: %User{is_admin: true}}} = conn, _), do: conn
+
+  def call(%{assigns: %{user: %User{is_moderator: true}}} = conn, _) do
+    if Config.get!([:instance, :privileged_staff]) do
+      conn
+    else
+      conn
+      |> render_error(:forbidden, "User is not an admin.")
+      |> halt()
+    end
+  end
+
+  def call(conn, _) do
+    conn
+    |> render_error(:forbidden, "User is not a staff member.")
+    |> halt()
+  end
+end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index ae373e58c..b9b52b1e5 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -101,6 +101,10 @@ defmodule Pleroma.Web.Router do
     plug(Pleroma.Web.Plugs.IdempotencyPlug)
   end
 
+  pipeline :require_privileged_staff do
+    plug(Pleroma.Web.Plugs.EnsureStaffPrivilegedPlug)
+  end
+
   pipeline :require_admin do
     plug(Pleroma.Web.Plugs.UserIsAdminPlug)
   end
@@ -151,6 +155,7 @@ defmodule Pleroma.Web.Router do
     get("/emoji", UtilController, :emoji)
     get("/captcha", UtilController, :captcha)
     get("/healthcheck", UtilController, :healthcheck)
+    post("/remote_interaction", UtilController, :remote_interaction)
   end
 
   scope "/api/v1/pleroma", Pleroma.Web do
@@ -194,7 +199,6 @@ defmodule Pleroma.Web.Router do
     post("/relay", RelayController, :follow)
     delete("/relay", RelayController, :unfollow)
 
-    get("/users/:nickname/password_reset", AdminAPIController, :get_password_reset)
     patch("/users/force_password_reset", AdminAPIController, :force_password_reset)
     get("/users/:nickname/credentials", AdminAPIController, :show_user_credentials)
     patch("/users/:nickname/credentials", AdminAPIController, :update_user_credentials)
@@ -227,6 +231,24 @@ defmodule Pleroma.Web.Router do
     post("/backups", AdminAPIController, :create_backup)
   end
 
+  # AdminAPI: admins and mods (staff) can perform these actions (if enabled by config)
+  scope "/api/v1/pleroma/admin", Pleroma.Web.AdminAPI do
+    pipe_through([:admin_api, :require_privileged_staff])
+
+    delete("/users", UserController, :delete)
+
+    get("/users/:nickname/password_reset", AdminAPIController, :get_password_reset)
+    patch("/users/:nickname/credentials", AdminAPIController, :update_user_credentials)
+
+    get("/users/:nickname/statuses", AdminAPIController, :list_user_statuses)
+    get("/users/:nickname/chats", AdminAPIController, :list_user_chats)
+
+    get("/statuses", StatusController, :index)
+
+    get("/chats/:id", ChatController, :show)
+    get("/chats/:id/messages", ChatController, :messages)
+  end
+
   # AdminAPI: admins and mods (staff) can perform these actions
   scope "/api/v1/pleroma/admin", Pleroma.Web.AdminAPI do
     pipe_through(:admin_api)
@@ -239,22 +261,13 @@ defmodule Pleroma.Web.Router do
     patch("/users/deactivate", UserController, :deactivate)
     patch("/users/approve", UserController, :approve)
 
-    delete("/users", UserController, :delete)
-
     post("/users/invite_token", InviteController, :create)
     get("/users/invites", InviteController, :index)
     post("/users/revoke_invite", InviteController, :revoke)
     post("/users/email_invite", InviteController, :email)
 
-    get("/users/:nickname/password_reset", AdminAPIController, :get_password_reset)
-    patch("/users/force_password_reset", AdminAPIController, :force_password_reset)
-    get("/users/:nickname/credentials", AdminAPIController, :show_user_credentials)
-    patch("/users/:nickname/credentials", AdminAPIController, :update_user_credentials)
-
     get("/users", UserController, :index)
     get("/users/:nickname", UserController, :show)
-    get("/users/:nickname/statuses", AdminAPIController, :list_user_statuses)
-    get("/users/:nickname/chats", AdminAPIController, :list_user_chats)
 
     get("/instances/:instance/statuses", InstanceController, :list_statuses)
     delete("/instances/:instance", InstanceController, :delete)
@@ -268,15 +281,12 @@ defmodule Pleroma.Web.Router do
     get("/statuses/:id", StatusController, :show)
     put("/statuses/:id", StatusController, :update)
     delete("/statuses/:id", StatusController, :delete)
-    get("/statuses", StatusController, :index)
 
     get("/moderation_log", AdminAPIController, :list_log)
 
     post("/reload_emoji", AdminAPIController, :reload_emoji)
     get("/stats", AdminAPIController, :stats)
 
-    get("/chats/:id", ChatController, :show)
-    get("/chats/:id/messages", ChatController, :messages)
     delete("/chats/:id/messages/:message_id", ChatController, :delete_message)
   end
 
@@ -385,6 +395,7 @@ defmodule Pleroma.Web.Router do
   scope "/api/v1/pleroma", Pleroma.Web.PleromaAPI do
     pipe_through(:api)
 
+    get("/apps", AppController, :index)
     get("/statuses/:id/reactions/:emoji", EmojiReactionController, :index)
     get("/statuses/:id/reactions", EmojiReactionController, :index)
   end
@@ -474,6 +485,7 @@ defmodule Pleroma.Web.Router do
     post("/accounts/:id/unblock", AccountController, :unblock)
     post("/accounts/:id/mute", AccountController, :mute)
     post("/accounts/:id/unmute", AccountController, :unmute)
+    post("/accounts/:id/note", AccountController, :note)
 
     get("/conversations", ConversationController, :index)
     post("/conversations/:id/read", ConversationController, :mark_as_read)
@@ -600,6 +612,8 @@ defmodule Pleroma.Web.Router do
     get("/timelines/tag/:tag", TimelineController, :hashtag)
 
     get("/polls/:id", PollController, :show)
+
+    get("/directory", DirectoryController, :index)
   end
 
   scope "/api/v2", Pleroma.Web.MastodonAPI do
@@ -650,6 +664,11 @@ defmodule Pleroma.Web.Router do
     get("/activities/:uuid", OStatus.OStatusController, :activity)
     get("/notice/:id", OStatus.OStatusController, :notice)
 
+    # Notice compatibility routes for other frontends
+    get("/@:nickname/:id", OStatus.OStatusController, :notice)
+    get("/@:nickname/posts/:id", OStatus.OStatusController, :notice)
+    get("/:nickname/status/:id", OStatus.OStatusController, :notice)
+
     # Mastodon compatibility routes
     get("/users/:nickname/statuses/:id", OStatus.OStatusController, :object)
     get("/users/:nickname/statuses/:id/activity", OStatus.OStatusController, :activity)
diff --git a/lib/pleroma/web/static_fe/static_fe_controller.ex b/lib/pleroma/web/static_fe/static_fe_controller.ex
index 50f0927a3..827c0a384 100644
--- a/lib/pleroma/web/static_fe/static_fe_controller.ex
+++ b/lib/pleroma/web/static_fe/static_fe_controller.ex
@@ -167,6 +167,15 @@ defmodule Pleroma.Web.StaticFE.StaticFEController do
   defp assign_id(%{path_info: ["notice", notice_id]} = conn, _opts),
     do: assign(conn, :notice_id, notice_id)
 
+  defp assign_id(%{path_info: ["@" <> _nickname, notice_id]} = conn, _opts),
+    do: assign(conn, :notice_id, notice_id)
+
+  defp assign_id(%{path_info: ["@" <> _nickname, "posts", notice_id]} = conn, _opts),
+    do: assign(conn, :notice_id, notice_id)
+
+  defp assign_id(%{path_info: [_nickname, "status", notice_id]} = conn, _opts),
+    do: assign(conn, :notice_id, notice_id)
+
   defp assign_id(%{path_info: ["users", user_id]} = conn, _opts),
     do: assign(conn, :username_or_id, user_id)
 
diff --git a/lib/pleroma/web/twitter_api/controllers/util_controller.ex b/lib/pleroma/web/twitter_api/controllers/util_controller.ex
index a4e44efdd..ccbef6d9f 100644
--- a/lib/pleroma/web/twitter_api/controllers/util_controller.ex
+++ b/lib/pleroma/web/twitter_api/controllers/util_controller.ex
@@ -62,6 +62,15 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
     end
   end
 
+  def remote_interaction(%{body_params: %{ap_id: ap_id, profile: profile}} = conn, _params) do
+    with {:ok, %{"subscribe_address" => template}} <- WebFinger.finger(profile) do
+      conn
+      |> json(%{url: String.replace(template, "{uri}", ap_id)})
+    else
+      _e -> json(conn, %{error: "Couldn't find user"})
+    end
+  end
+
   def frontend_configurations(conn, _params) do
     render(conn, "frontend_configurations.json")
   end