Austin Seipp ab923e0a75 Implement new reCAPTCHA interface ... Summary: Fixes T12195. For the past few years, Recaptcha (now part of Google) has supported a new, "no captcha" one-click user interface. This new UI is stable, doesn't require any typing or reading words, and can even work without JavaScript (if the administrator enables it on the Recaptcha side). Furthermore, the new Recaptcha has a completely trivial API that can be dealt with in a few lines of code. Thus, the external `recaptcha` php library is now gone. This API is a complete replacement for the old one, and does not require any upgrade path for users or Phabricator administrators - public and secret keys for the "new" Recaptcha UI are the exact same as the "classic" Recaptcha. Any old Recaptcha keys for a domain will continue to work. Note that Google is currently testing Yet Another new Captcha API, called "Invisible reCAPTCHA", that will not require user interaction at all. In fact, the user will not even be aware there //is even a captcha form//, as far as I understand. However, this new API is 1) in beta, 2) requires new Recaptcha keys (so it cannot be a drop-in replacement), and 3) requires more drastic API changes, as form submission buttons must instead invoke JavaScript code, rather than a token being passed along with the form submission. This would require far more extensive changes to the controllers. Maybe when it's several years old, it can be considered. Signed-off-by: Austin Seipp <aseipp@pobox.com> Test Plan: Created a brand-new Phabricator installation, saw the new Captcha UI on administrator sign up. Logged out, made 5 invalid login attempts, and saw the new Captcha UI. Reworked the conditional to invert the condition, etc to test and make sure the API responded properly. Reviewers: epriestley, #blessed_reviewers, chad Reviewed By: epriestley, #blessed_reviewers Subscribers: avivey, Korvin Maniphest Tasks: T12195 Differential Revision: https://secure.phabricator.com/D17304		2017-02-03 20:06:29 +00:00
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