rus.rb

require_relative 'webc';
require 'uri';

ws = Webclient.new 'codepad.org';

begin
ws.start "/",
	URI.encode_www_form(
		'code' => IO.read(ARGV[0]),
		'lang' => ARGV[1] == "/p" ? "Plain Text" : 'Ruby',
		'submit' => 'Submit'
	),
	"POST";

puts ws.headers["location"];
rescue Errno::ENOENT
	warn "The file you are trying to upload doesn't exist.";
end

webc.rb

require "socket";

class Webclient
	attr_reader :initial_line, :headers, :content;

	def initialize server, port=80
		@socket = TCPSocket.new server, port;
		@server = server;
	end

	def start location, data, method
		@socket.write "#{method} #{location} HTTP/1.0\r\n";
		@socket.write "Host: #{@server}\r\n";

		if method == "POST"
			@socket.write "Content-Type: application/x-www-form-urlencoded\r\n";
		end

		@socket.write "Content-Length: #{data.length}\r\n";
		@socket.write "\r\n";
		@socket.write data;

		@initial_line = @socket.readline;

		@headers = {};
		while (line = @socket.readline) != "\r\n"
			@headers.store *line.downcase.strip.split(/:\s+/);
		end

		@content = @socket.read;
	end
end