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shmdt/place_with_recaptcha.html.erb

Created November 21, 2018 08:17
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setup recaptcha-v3 with rails
Raw
place_with_recaptcha.html.erb
<%= from_for(@your_instance) do |f| %>
<%= button_to 'submit', '', { class: 'btn', onclick: "reCaptcha('your_action')" } %>
<%= f.submit 'hide this btn', class: 'hidden', id: 'submit_this_form' %>
<% end %>
<script src="https://www.google.com/recaptcha/api.js?render=<%= ENV['RECAPTCHA_SITE_KEY'] %>"></script>
<script>
function reCaptcha(action) {
event.preventDefault();
grecaptcha.ready(function () {
grecaptcha.execute('<%= ENV['RECAPTCHA_SITE_KEY'] %>', { action: action }).then(function (token) {
$('input[name="g-recaptcha-token"]').remove();
$('form').prepend('<input type="hidden" name="g-recaptcha-token" value="' + token + '">');
$('#submit_this_form').click();
});
});
}
</script>
Raw
validatable.rb
module Validatable
# thanks https://github.com/igorkasyanchuk/new_google_recaptcha
# token = params['g-recaptcha-token']
def recaptcha_validated?(token)
uri = URI("https://www.google.com/recaptcha/api/siteverify?secret=#{ ENV['RECAPTCHA_SECRET_KEY'] }&response=#{token}")
result = JSON.parse(Net::HTTP.get(uri))
!!result["success"]
end
end
@OleksandrPoltavets
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You can extract url to constant, just looks nicer, something like this:

GOOGLE_RECAPTCHA_URL = "https://www.google.com/recaptcha/api/siteverify"
...
URI.join(GOOGLE_RECAPTCHA_URL, "?secret=#{ ENV['RECAPTCHA_SECRET_KEY'] }&response=#{token}")

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