From: Craig Moran <craig.m.moran.ruby@...>
Date: 2005-04-25T22:05:49+09:00
Subject: Re: Proxy Server troubles

I am behind a proxy server at work, yet got this to work.  I commented
out your Net::HTTP.new line and added what I believe to be the Proxy
equivalent.  Then I set Mozilla Firefox's proxy to be localhost:8080. 
NOTE:  I do not have the ability to use another machine to test as I
am very restricted with net access here.  I launched slashdot.org and
monitored the proxy.rb window while all of the HTML flew by.  It came
up and rendered properly in the browser.

I am on Windows 2000
C:\>ruby -v 
ruby 1.8.2 (2004-12-25) [i386-mswin32]

Here's the code.  Hope it helps:

require 'socket'
require 'net/http'
local_host = 'localhost'
local_port = 8080

host = 'slashdot.org'
server = TCPServer.new(local_host, local_port)
while true
       Thread.start(server.accept) do |s|
               data = ''
               while s.gets && !$_.nil?
                       data += $_
                       break if $_ == "\r\n" || $_ == "\n"
               end
               p "====Received: #{data}"
#               net = Net::HTTP.new(host,80)
	       net = Net::HTTP::Proxy("proxy", "80").start(host)
               response = net.get('/')
               s << 
"HTTP/#{response.http_version}#{response.code}/#{response.message}
\r\n"
               p "====Got back"
               response.each_header do |key,value|
                               tmp = key + ": " + value + "\r\n"
                               p tmp
                               s << tmp
               end
               p response.body
               s << "\r\n" << response.body
               s.close # We're done with this request, bring on the next.
       end
end

On 4/21/05, Tanner Burson <tanner.burson@gmail.com> wrote:
> I've been working on a proxy server implementation for a project idea
> I have.  But I've found that it only seems to work on certain pages,
> and not on others.  I've distilled the problem down to a  simple
> implementation, but it still occurs.  The code below will return a
> (mostly) correct website if pointed at 'www.msn.com' but if pointed at
> say 'slashdot.org' the browser refuses to display it, in both cases
> the page is loaded correctly.  If anyone has any ideas I'd really
> appreciate it.
> 
> ===proxy.rb
> 
> require 'socket'
> require 'net/http'
> local_host = '192.168.0.6'
> local_port = 8080
> 
> host = 'slashdot.org'
> server = TCPServer.new(local_host,local_port)
> while true
>         Thread.start(server.accept) do |s|
>                 data = ''
>                 while s.gets && !$_.nil?
>                         data += $_
>                         break if $_ == "\r\n" || $_ == "\n"
>                 end
>                 p "====Received: #{data}"
>                 net = Net::HTTP.new(host,80)
>                 response = net.get('/')
>                 s <<  "HTTP/#{response.http_version}
> #{response.code}/#{response.message} \r\n"
>                 p "====Got back"
>                 response.each_header do |key,value|
>                                 tmp = key + ": " + value + "\r\n"
>                                 p tmp
>                                 s << tmp
>                 end
>                 p response.body
>                 s << "\r\n" << response.body
>                 s.close # We're done with this request, bring on the next.
>         end
> end
> 
> ====end
> --
> ===Tanner Burson===
> tanner.burson@gmail.com
> http://tannerburson.com   <---Might even work one day...
> 
>