wtforms-nocaptcha is a convenient field for WTForms that transparently handles Google's No Captcha reCaptcha display and validation via corresponding widget and validator classes.
Get the distribution:
pip install https://github.com/evrom/wtforms-nocaptcha/archive/master.zip
It is mostly the usual WTForms field that needs some extra data and parameters. Here's a simple example:
from wtforms.form import Form
from wtfnocaptcha.fields import NoCaptchaField
class CaptchaForm(Form):
captcha = NoCaptchaField(public_key=RECAPTCHA_PUB_KEY, private_key=RECAPTCHA_PRIV_KEY, secure=True)
form = CaptchaForm(request.POST, captcha={'ip_address': request.META['REMOTE_ADDR']})
if form.validate():
print "Captcha response is correct"
else:
print form.errors['captcha']
Some description of field's parameters:
| public_key: | Public key generated by reCaptcha service |
|---|---|
| private_key: | Private key generated by reCaptcha service |
| secure: | True if it should be served via HTTPS, False otherwise. Default: False. |
| http_proxy: | URL of HTTP proxy for API calls |
When form with RecaptchaField is instantiated with bound fields, it must include captcha keyword parameter with dict that has 'ip_address' element.
Accessing field as a string will get the widget code with URLs that depend on secure parameter passed to the field.
HTTP errors and errors that are indepentent of user input are logged. Others are handled as validation errors.
See LICENSE for full licensing information.