Gmail authentication helper for use with Squid proxy.

squid_auth.rb

#!/usr/bin/env ruby

require 'net/imap'

while true
        # open connection
        imap = Net::IMAP.new('imap.googlemail.com', 993, true)

        # get credentials
        user, pass = $stdin.readline.split
        
        # authenticate
        begin
                imap.login(user, pass)
                puts "OK"
        rescue Net::IMAP::Error => err
                puts "ERR"
        end

        $stdout.flush
        imap.disconnect
end