Updating reCaptcha (widget) in django-based OSQA

[DougN]

I'm new to django and trying to figure out how some of the form processing works.

For example, I have this field:

class ReCaptchaField(forms.Field):

    def __init__(self, *args, **kwargs):

        super(ReCaptchaField, self).__init__(widget=ReCaptchaWidget)

The widget renders some HTML (reCaptcha2 stuff).

I understand the concept of Field.clean, but the existing code is cleaning an array, and I haven't been able to work out where those values come from or what they are:

def clean(self, values):

        super(ReCaptchaField, self).clean(values[1])

        recaptcha_challenge_value = smart_unicode(values[0])

        recaptcha_response_value = smart_unicode(values[1])

        ... code to do stuff with the values

How can I figure out what those incoming values are?   The widget has a value_from_datadict, but I can't see where those values get populated either.

class ReCaptchaWidget(forms.Widget):

    def render(self, name, value, attrs=None):

        return mark_safe(force_unicode(captcha.displayhtml(settings.RECAPTCHA_PUB_KEY)))

    def value_from_datadict(self, data, files, name):

        return data.get('recaptcha_challenge_field', None), data.get('recaptcha_response_field', None)

For example, there are variables named recaptcha_challenge_field, but that string literal isn't used anywhere else.  Seems like magic going on here... ;(

Thanks for any pointers.

Doug

[Jani Tiainen]

I recently used similar stuff and IIRC recaptcha2 doesn't use one of those fields anymore.

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[Melvyn Sopacua]

On vrijdag 20 april 2018 16:17:05 CEST DougN wrote:

> Thanks for any pointers.

Same. Could you include the URL to the repository of the captcha
implementation you're using? I've looked at 2 now and neither of them have the
code you posted.

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Melvyn Sopacua

[Jani Tiainen]

Hi,

I've been using following implementation:
https://github.com/praekelt/django-recaptcha

Which has similar code.

Currently I'm actually using invisible ReCaptcha which works just fine with field.

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- Well planned is half done, and a half done has been sufficient before...

[DougN]

Hi Melvyn -

Same. Could you include the URL to the repository of the captcha
implementation you're using? I've looked at 2 now and neither of them have the
code you posted.

I did a little write up with a .zip file of the code at the end here:

https://www.poweradmin.com/blog/updating-django-osqa-to-use-recaptcha-2/

I hope it's helpful.

Doug