Users model and integration

app/controllers/user_controller.rb

@@ -14,6 +14,18 @@ class UserController < ApplicationController
       
       if Digest::MD5.hexdigest(hash) == params[:sig]
         @res[:status] = 'hello'
+        user = User.find_by_vkid(params[:mid])
+        if user.nil?
+          user = User.new
+          user.vkid = params[:mid]
+          user.save
+        end
+        if user.name.nil? and not params[:name].nil?
+          user.name = params[:name]
+          user.save
+        end
+        @res[:id] = user.id
+        @res[:username] = user.name
       else
         @res[:status] = 'bad signature'
       end