vocabulary implements support for the recaptcha. Recaptcha is a web service that provides the user with a captcha, a test that is easy to solve by visual inspection, but hard to solve by writing a computer program. Use a captcha to protect forms from abusive users.
The recaptcha responder is a filter-responder
that wraps another responder. Set the domain
, and private-key
slots of this responder to your recaptcha account information.
Wrapping a responder with recaptcha support:
<recaptcha> ( responder -- recaptcha )
validate-recaptcha ( -- )
Symbol set after validation:
An example: Recaptcha example