class HomePageView(TemplateView):

    template_name="home.html"

    def dispatch(self,request,*args,**kwargs):
        if not request.user.is_authenticated():
            raise http.Http404
        return super(HomePageView,self).dispatch(request,*args,**kwargs)

{% extends "base.html" %}
{% block content %}
{% if  user.is_authenticated %}

 ### display some user specic data
 {% else %}
 <form class="navbar-form navbar-right" role="form" action="" method="post">
          {% csrf_token %}
           {% if form.errors %}
<p>Your username and password didn't match. Please try again.ohh!</p>
            {% endif %}
            <div class="form-group">

            {{ form.username.label_tag }}
              <input type="text" placeholder="Uname or Email" class="form-control" name="username">
            </div>
            <div class="form-group">
              <input type="password" placeholder="Password" class="form-control" name="password">
            </div>
            <button type="submit" class="btn btn-success">Sign in</button>
          </form>
{% endif %}
{% endblock %}

urlpatterns = patterns('',
    # Examples:
    url(r'^$', HomePageView.as_view(), name='home'),)