Add basic Avatar updating code.

lib/pleroma/web/router.ex

@@ -45,5 +45,6 @@ defmodule Pleroma.Web.Router do
     post "/favorites/create", TwitterAPI.Controller, :favorite
     post "/favorites/destroy/:id", TwitterAPI.Controller, :unfavorite
     post "/statuses/retweet/:id", TwitterAPI.Controller, :retweet
+    post "/qvitter/update_avatar", TwitterAPI.Controller, :update_avatar
   end
 end

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -3,6 +3,7 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
   alias Pleroma.Web.TwitterAPI.TwitterAPI
   alias Pleroma.Web.TwitterAPI.Representers.{UserRepresenter, ActivityRepresenter}
   alias Pleroma.{Repo, Activity}
+  alias Pleroma.Web.ActivityPub.ActivityPub
 
   def verify_credentials(%{assigns: %{user: user}} = conn, _params) do
     response = user |> UserRepresenter.to_json(%{for: user})
@@ -142,6 +143,18 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     end
   end
 
+  def update_avatar(%{assigns: %{user: user}} = conn, params) do
+    {:ok, object} = ActivityPub.upload(params)
+    change = Ecto.Changeset.change(user, %{avatar: object.data})
+    {:ok, user} = Repo.update(change)
+
+    response = UserRepresenter.to_map(user, %{for: user})
+    |> Poison.encode!
+
+    conn
+    |> json_reply(200, response)
+  end
+
   defp json_reply(conn, status, json) do
     conn
     |> put_resp_content_type("application/json")