From: "ara.t.howard" Date: 2007-07-05T15:41:25+09:00 Subject: [ANN] flatulent-0.0.3 (the demo has been updated too) NAME flatulent : CAPTCHA for FIGLET. SYNOPSIS the flatulent gem provides brain dead simple to use, but internally cunning, ascii art (figlet) captcha for ruby. URI http://codeforpeople.com/lib/ruby http://rubyforge.org/projects/codeforpeople HOW DO I GET FLATULENT? gem install flatulent HISTORY 0.0.3: - following are now all equivalent when posting (thanks botp) 0==o==O==Q (zero, oh's, and queue) l==l (one and el) 2==z==Z (two and z's) 5==s==S (5 and s's) - random horizontal and vertical displacement of each char - vastly improved background noise based on figlet char shapes - inputs are case sensitive (thanks john joyce, chris carter) - expanded rails examples 0.0.2 - ajax gets stinky: Flatulent.ajax! the result of this new addition is that the captcha itself doesn't appear in the source file at all - blowfish encoding for timebomb and captcha fields - auto server key configuration using hostname and mac address - improved noise algorithm - improved character placement (chars shared edges to make ocr'ing harder) 0.0.1 - initial version RAILS EXAMPLES REGULAR METHOD (LESS SECURE): def controller_action if params.has_key? 'flatulent' Flatulent.validate! params end render :inline => <<-html #{ Flatulent.form } html end AJAX METHOD (MORE SECURE): def controller_action if params.has_key? 'flatulent' Flatulent.validate! params end render :inline => <<-html <%= javascript_include_tag 'prototype' %> html end DOCS see source in ./lib/* see the example rails project in ./rails ONLINE SAMPLES http://drawohara.tumblr.com/post/4791838 http://drawohara.tumblr.com/post/4944987 http://drawohara.tumblr.com/post/4968766 ONLINE DEMO OF AJAX METHOD http://fortytwo.merseine.nu:3000/flatulent/ajax -- try to break it! enjoy. -a -- we can deny everything, except that we have the possibility of being better. simply reflect on that. h.h. the 14th dalai lama