Archiving Audio Stream in Ruby

archive.rb

require 'net/http'
require 'uri'
url = URI.parse('http://stream.kpsu.org:8080/listen')

# This thread is used to kill the recording thread after the
# designated amount of time.

timelimit = Thread.new do
    # running_time_in_seconds is how many seconds the clip should be
    # one hour = 3600 seconds
    running_time_in_seconds = 60

    sleep(running_time_in_seconds)
    
    # The last thread is the stream ripping thread, and we want to kill it
    # after the specified amount of time
    Thread.kill(Thread.list.last)
end

# This thread is what actually writes the file to disk,
# without the timelimit it will run forever until the stream
# breaks.
streamripper = Thread.new do
    Net::HTTP.start(url.host, url.port) do |http| 
        
        # f is the file
        # Time.now.to_i is an integer representation of time
        # The file saves to the same directory the script is run from
        # make sure it was write permission!

        # if the format of the stream changes 
        f = open("#{Time.now.to_i}.mp3", "w")
        begin
            http.request_get('/') do |resp|           
                resp.read_body do |segment|
                    f.write(segment)
                end
            end
        ensure
            f.close()
        end
    end 
end
# Put the threads in an array, I think it makes
# running them cleaner
threads=[timelimit, streamripper]
# Run the threads
threads.each{|t| t.join }