CODEWITHSUNDEEP
pythondjango
daydreamer
daydreamer

Reputation: 91999

Django : CSRF verification failed even after adding {% csrf_token %}

views.py: 

def index(request):
    return render_to_response('index.html', {})

def photos(request, artist):
    if not artist:
        return render_to_response('photos.html', {'error' : 'no artist supplied'})
    photos = get_photos_for_artist(artist)
    if not photos:
        logging.error('Issue while getting photos for artist')
        return render_to_response('photos.html', {'error': 'no matching artist found'})
    return render_to_response('photos.html', {'photos': photos})

Index.html: 

<html>
    <head>
        <title>find artist photos </title>
    </head>
    <body>
        {% block error %} {% endblock %}
        <form action="/photos" method="POST">
            {% csrf_token %}
            <label for="artist">Artist : </label>
            <input type="text" name="artist">
            <input type="submit" value="Search">
        </form>
        {% block content %}{% endblock %}
    </body>
</html>

photos.html:

{% extends 'index.html' %}
{% block error %}
    {% if error %}
        <p> {{ error}} </p>
    {% endif %}
{% endblock %}

{% block content %}
    {% if photos %}
        {% for photo in photos %}
            {{ photo }}
        {% endfor %}
    {% endif %}
{% endblock%}

url.py:

urlpatterns = patterns('',
    (r'', index),
    (r'^time/$', current_datetime),
    (r'^photos/(\w+)$', photos)
)

I even tried by adding {% csrf_token %}, but no luck

Thank you

UPDATE
I see these in the logs 

UserWarning: A {% csrf_token %} was used in a template, but the context did not provide the value.  This is usually caused by not using RequestContext.
  warnings.warn("A {% csrf_token %} was used in a template, but the context did not provide the value.  This is usually caused by not using RequestContext.")

This came after adding context_instance=RequestContext(request) **to render_to_response()**

Upvotes: 3

Views: 9019

Answers (7)

Megha Gajbhiye
Megha Gajbhiye

Reputation: 1

This worked for me:

{% csrf_token %} In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL.

In views.py:

from django.template import RequestContext

...

...

...

return render_to_response("home.html", {}, context_instance=RequestContext(request))

Upvotes: -1

Kambiz
Kambiz

Reputation: 1217

add context_instance=RequestContext(request) to every view that you will use a form inside it:

return render_to_response('index.html', {}, context_instance=RequestContext(request) )


return render_to_response('photos.html', {'photos': photos}, context_instance=RequestContext(request) )

Upvotes: 9

sberder
sberder

Reputation: 4635

Supposing you are using a fairly recent version of Django (1.3/1.4/dev) you should follow these steps :

  • In settings.py, Add the middleware django.middleware.csrf.CsrfViewMiddleware to the MIDDLEWARE_CLASSES list.
  • In your template, use the {% crsf_token %} in the form.
  • In your view, ensure that the django.core.context_processors.csrf context processor is used either by :
    • use RequestContext from django.template
    • directly import the csrf processor from from django.core.context_processors

Examples

from django.template import RequestContext
from django.shortcuts import render_to_response

def my_view(request):
    return render_to_response('my_template.html', {}, context_instance=RequestContext(request))

or

from django.core.context_processors import csrf
from django.shortcuts import render_to_response

def my_view(request):
    c = {csrf(request)}
    return render_to_response('my_template.html', c)

References

(exhaustive post for posterity and future viewers)

Upvotes: 5

user9876
user9876

Reputation: 11102

A number of things to troubleshoot here:

  • Please load your "index" page in a web browser, do "View Source", and check if the {% csrf_token %} is being expanded. It should be replaced with an <input> tag. If that's not happening, then you have problems with your index page. If it is being replaced correctly, then you have problems with your photos page.

  • The POST URL in index.html doesn't match any of the patterns in urls.py. Your urls.py seems to expect the search term to be part of the URL, but it's not - you're sending it as a HTTP POST parameter. You need to access it via request.POST.

Upvotes: 3

kungphu
kungphu

Reputation: 4859

You may need to explicitly pass in a RequestContext instance when you use render_to_response in order to get the CSRF values for that template tag.

http://lincolnloop.com/blog/2008/may/10/getting-requestcontext-your-templates/

Upvotes: 1

andersem
andersem

Reputation: 724

Try using the @csrf_protect decorator:

from django.views.decorators.csrf import csrf_protect
from django.shortcuts import render_to_response

@csrf_protect
def photos(request,artist):
    if not artist:
        return render_to_response('photos.html', {'error' : 'no artist supplied'})
    photos = get_photos_for_artist(artist)
    if not photos:
        logging.error('Issue while getting photos for artist')
        return render_to_response('photos.html', {'error': 'no matching artist found'})
    return render_to_response('photos.html', {'photos': photos})

Upvotes: 0

Goin
Goin

Reputation: 3964

Check in the settings, if you have this middleware:

'django.middleware.csrf.CsrfViewMiddleware'

https://docs.djangoproject.com/en/dev/ref/contrib/csrf/

Upvotes: 2

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