Catch Paperclip errors on /api/v1/media, return early from update profile service if XML given is nil

app/controllers/api/v1/media_controller.rb

@@ -4,5 +4,9 @@ class Api::V1::MediaController < ApiController
 
   def create
     @media = MediaAttachment.create!(account: current_user.account, file: params[:file])
+  rescue Paperclip::Errors::NotIdentifiedByImageMagickError
+    render json: { error: 'File type of uploaded media could not be verified' }, status: 422
+  rescue Paperclip::Error
+    render json: { error: 'Error processing thumbnail for uploaded media' }, status: 500
   end
 end

app/services/update_remote_profile_service.rb

@@ -1,5 +1,7 @@
 class UpdateRemoteProfileService < BaseService
   def call(author_xml, account)
+    return if author_xml.nil?
+
     if author_xml.at_xpath('./poco:displayName').nil?
       account.display_name = account.username
     else