A Sinatra extension to seamlessly integrate OpenCaptcha to Sinatra applications.
See http://www.opencaptcha.com for more information about OpenCaptcha
gem install sinatra-opencaptcha
require 'sinatra'
require 'sinatra/opencaptcha'
get '/' do
erb :index
end
post '/' do
if open_captcha_valid?
"Welcome, dear #{params[:name]}!"
else
"Go away, bloody spamming machine!"
end
end
__END__
@@ index
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/" method="post">
<p><label for=\"name\">My name: </label><input type="text" id="name" name="name"/></p>
<%= open_captcha :answer_input_label => 'What do you read?: ', :answer_input_class => 'text' %>
<p><input type="submit" value="Submit"/></p>
</form>
</body>
</html>