Django Friendly Captcha

Django field/widget for Friendly Captcha (https://friendlycaptcha.com).

Installation

Latest version:

pip install -e git+git://github.com/christianwgd/django-friendly-captcha.git#egg=django-friendly-captcha

Stable version:

pip install django-friendly-captcha

Documentation

Usage

Add 'friendly_captcha' to your INSTALLED_APPS.

INSTALLED_APPS = [
    ...
    'friendly_captcha',
]

Add the captcha field to your form:

from friendly_captcha.fields import FrcCaptchaField


class ContactForm(forms.ModelForm):

    class Meta:
        model = ContactMessage
        fields = (
            'name', 'email', 'subject', 'text'
        )

    captcha = FrcCaptchaField()

As of version 0.1.7 the javascript static assets are included in the widget, so there is no need to do that in your project templates. Version 0.1.10 includes friendly captcha version 0.9.15 javascript files. If you need a different version you can set these by providing them in your settings:

FRC_WIDGET_MODULE_JS = 'https://unpkg.com/[email protected]/widget.module.min.js'
FRC_WIDGET_JS = 'https://unpkg.com/[email protected]/widget.min.js'

For version 0.1.6 and below you need to include the script tags from Friendly Captcha to your forms template (see https://docs.friendlycaptcha.com/#/installation)

<script type="module" src="https://unpkg.com/[email protected]/widget.module.min.js" async defer></script>
<script nomodule src="https://unpkg.com/[email protected]/widget.min.js" async defer></script>

If you build up your form from single fields, dont't forget to include the captcha form field.

Configuration

Register to Friendly Captcha at https://friendlycaptcha.com/signup to get your sitekey and captcha secret.

FRC_CAPTCHA_SECRET = '<yourCaptchaSecret'
FRC_CAPTCHA_SITE_KEY = '<yourCaptchaSiteKey>'

FRC_CAPTCHA_VERIFICATION_URL = 'https://api.friendlycaptcha.com/api/v1/siteverify'

In default the form will fail with an error ('Captcha test failed'). You can change this behaviour by setting FRC_CAPTCHA_FAIL_SILENT to True.

FRC_CAPTCHA_FAIL_SILENT = False

When setting FAIL_SILENT to True it's up to you to handle captcha verification:

# in your form view
def form_valid(self, form):
    captcha_verified = form.cleaned_data['captcha']
    if captcha_verified:
        # send mail or whatever ...
    else:
        # captcha verification failed, do nothing ...

As of version 0.1.11 there's a new settings option to get a mocked value from the captcha verification. You can set FRC_CAPTCHA_MOCKED_VALUE to True or False, depending on the vaule you need for testing. The default value is unset which equals to None.

FRC_CAPTCHA_MOCKED_VALUE = None|False|True

Custom widget attributes

You can add custom widget attrs to the FrcCaptchaField like in any other Django field:

captcha = FrcCaptchaField(widget=FrcCaptchaWidget(attrs={'data-start': 'auto'}))

See https://docs.friendlycaptcha.com/#/widget_api for additional widget attrs. The data-lang attr is set from your Django configured language.

Logging

If you want to log the results of the captcha verifications you can add a logger to your logging configuration:

'django.friendly_captcha': {
    'handlers': ['default'],
    'level': 'INFO',
}