Add OpenAPI spec for MascotController

lib/pleroma/web/api_spec/operations/pleroma_mascot_operation.ex

@@ -0,0 +1,79 @@
+# 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.PleromaMascotOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Mascot"],
+      summary: "Gets user mascot image",
+      security: [%{"oAuth" => ["read:accounts"]}],
+      operationId: "PleromaAPI.MascotController.show",
+      responses: %{
+        200 => Operation.response("Mascot", "application/json", mascot())
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Mascot"],
+      summary: "Set/clear user avatar image",
+      description:
+        "Behaves exactly the same as `POST /api/v1/upload`. Can only accept images - any attempt to upload non-image files will be met with `HTTP 415 Unsupported Media Type`.",
+      operationId: "PleromaAPI.MascotController.update",
+      requestBody:
+        request_body(
+          "Parameters",
+          %Schema{
+            type: :object,
+            properties: %{
+              file: %Schema{type: :string, format: :binary}
+            }
+          },
+          required: true
+        ),
+      security: [%{"oAuth" => ["write:accounts"]}],
+      responses: %{
+        200 => Operation.response("Mascot", "application/json", mascot()),
+        415 => Operation.response("Unsupported Media Type", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp mascot do
+    %Schema{
+      type: :object,
+      properties: %{
+        id: %Schema{type: :string},
+        url: %Schema{type: :string, format: :uri},
+        type: %Schema{type: :string},
+        pleroma: %Schema{
+          type: :object,
+          properties: %{
+            mime_type: %Schema{type: :string}
+          }
+        }
+      },
+      example: %{
+        "id" => "abcdefg",
+        "url" => "https://pleroma.example.org/media/abcdefg.png",
+        "type" => "image",
+        "pleroma" => %{
+          "mime_type" => "image/png"
+        }
+      }
+    }
+  end
+end

lib/pleroma/web/pleroma_api/controllers/mascot_controller.ex

@@ -9,16 +9,19 @@ defmodule Pleroma.Web.PleromaAPI.MascotController do
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["read:accounts"]} when action == :show)
   plug(OAuthScopesPlug, %{scopes: ["write:accounts"]} when action != :show)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.PleromaMascotOperation
+
   @doc "GET /api/v1/pleroma/mascot"
   def show(%{assigns: %{user: user}} = conn, _params) do
     json(conn, User.get_mascot(user))
   end
 
   @doc "PUT /api/v1/pleroma/mascot"
-  def update(%{assigns: %{user: user}} = conn, %{"file" => file}) do
+  def update(%{assigns: %{user: user}, body_params: %{file: file}} = conn, _) do
     with {:ok, object} <- ActivityPub.upload(file, actor: User.ap_id(user)),
          # Reject if not an image
          %{type: "image"} = attachment <- render_attachment(object) do