Authentication (User Registration A) on Shared Host using FastCGI

As a continuation from the previous chapter, Authentication on Shared Host using FastCGI. in this chapter, we will implement user registration. We'll need two things: username and password.

We need put two files in ~/www/dj directory:

# pwd
/home2/bogotob1/public_html/dj

# ls
./  ../  djangoproject.fcgi*  .htaccess

djangoproject.fcgi:

#! /home2/bogotob1/python/bin/python
import sys, os
sys.path.insert(0, "/home2/bogotob1/python")
sys.path.insert(13, "/home2/bogotob1/djangoproject")
os.environ['DJANGO_SETTINGS_MODULE'] = 'djangoproject.settings'
from django.core.servers.fastcgi import runfastcgi
runfastcgi(method="threaded", daemonize="false")

where /home2/bogotob1/ is my home(~) directory.

.htaccess:

# django
AddHandler fcgid-script .fcgi
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ djangoproject.fcgi/$1 [QSA,L]

To register a user, we're adding two views to the urls previously defined in urls.py:

from django.conf.urls import patterns, include, url

from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    # Examples:
    url(r'^$', 'djangoapp.views.home', name='home'),
    # url(r'^blog/', include('blog.urls')),

    url(r'^admin/', include(admin.site.urls)),

    # user authentication urls
    url(r'^accounts/login/$', 'djangoapp.views.login'),
    url(r'^accounts/auth/$', 'djangoapp.views.auth_view'),
    url(r'^accounts/login/accounts/auth/$', 'djangoapp.views.auth_view'),
    url(r'^accounts/logout/$', 'djangoapp.views.logout'),
    url(r'^accounts/loggedin/$', 'djangoapp.views.loggedin'),
    url(r'^accounts/invalid/$', 'djangoapp.views.invalid_login'),
    url(r'^accounts/register/$', 'djangoapp.views.register_user'),
    url(r'^accounts/register_success/$', 'djangoapp.views.register_success'),
)

Similar to the urls, we're going to add new views for registration to views.py:

from django.shortcuts import render_to_response
from django.http import HttpResponseRedirect
from django.contrib import auth
from django.core.context_processors import csrf
from django.contrib.auth.forms import UserCreationForm

def home(request):
   return  render_to_response('home.html',
                    {'Testing' : 'Django Template Inheritance ',
                    'HelloHello' : 'Hello World - Django'})
def login(request):
    c = {}
    c.update(csrf(request))
    return render_to_response('login.html', c)

def auth_view(request):
    username = request.POST.get('username', '')
    password = request.POST.get('password', '')
    user = auth.authenticate(username=username, password=password)

    if user is not None:
        auth.login(request, user)
        return HttpResponseRedirect('/dj/accounts/loggedin')
    else:
        return HttpResponseRedirect('/dj/accounts/invalid')

def logout(request):
    auth.logout(request)
    return render_to_response('logout.html')

def loggedin(request):
    return render_to_response('loggedin.html',
                               {'full_name': request.user.username})

def invalid_login(request):
    return render_to_response('invalid_login.html')

def register_user(request):
    # 2nd time around
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect('/dj/accounts/register_success')

    # 1st time visit
    args = {}
    args.update(csrf(request))

    # form with no input
    args['form'] = UserCreationForm()
    print args
    
    return render_to_response('register.html', args)

def register_success(request):
    return render_to_response('register_success.html')

register.html:

{% extends "base.html" %}
{% block content %}

 <h1>Register</h2>

  <form action="/dj/accounts/register/" method="post">{% csrf_token %}
    {{ form }}
    <input type="Submit" value="Register" />
  </form>

{% endblock %}

register_success.html:

{% extends "base.html" %}
{% block content %}
  <h2>You are now registered!</h2>
  <p>Click <a href="/dj/accounts/login/">here</a> to login</p>

{% endblock %}                

Let's register with username as register_test:

The form from UserCreationForm() is not well aligned, and we'll fix it later. Right now, we just want to check if it's working properly.

If the registration is successful, we get the following page:

Now, let's login with the newly registered username:

We can see it works:

We can check if the user (register_test) is there from admin page: