This post originated from an RSS feed registered with Ruby Buzz by Michael Neumann. Original Post: Oh My God - P2P Feed Title: Mike's Weblog Feed URL: http://www.ntecs.de/blog-old/index.rss?cat=ruby&count=7 Feed Description: Blogging about Ruby and other interesting stuff. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Michael Neumann Latest Posts From Mike's Weblog

  require 'openssl'
  require 'xmlrpc/client'

  def hmac(key, msg) OpenSSL::HMAC.hexdigest(OpenSSL::Digest::Digest.new('md5'), key, msg) end

  passwd = "abc"
  url = "http://127.0.0.1:3001"

  p XMLRPC::Client.new2(url).call("f", hmac(passwd, url), 0, [])

It should query a tinyp2p.py server started with:

  python tinyp2p.py abc server 127.0.0.1 3001

But it failed for some unknown reason. So I stopped at this point.

Today, Florian Gross posted a 6 lines P2P program in Ruby which is shown below:

  # Server: ruby p2p.rb password server server-uri merge-servers
  # Sample: ruby p2p.rb foobar server druby://localhost:1337 druby://foo.bar:1337
  # Client: ruby p2p.rb password client server-uri download-pattern
  # Sample: ruby p2p.rb foobar client druby://localhost:1337 *.rb
  require'drb';F,D,C,P,M,U,*O=File,Class,Dir,*ARGV;def s(p)F.split(p[/[^|].*/])[-1
  ]end;def c(u);DRbObject.new((),u)end;def x(u)[P,u].hash;end;M=="client"&&c(U).f(
  x(U)).each{|n|p,c=x(n),c(n);(c.f(p,O[0],0).map{|f|s f}-D["*"]).each{|f|F.open(f,
  "w"){|o|o<<c.f(p,f,1)}}}||(DRb.start_service U,C.new{def f(c,a=[],t=2)c==x(U)&&(
  t==0&&D[s(a)]||t==1&&F.read(s(a))||p(a))end;def y()(p(U)+p).each{|u|c(u).f(x(u),
  p(U))rescue()};self;end;private;def p(x=[]);O.push(*x).uniq!;O;end}.new.y;sleep)

I think I would understand this code better than the Python code, but I will not try it ;-)