ヘッダ偽装。youkuなどの中国動画サイトをipadで見る方法はありますか？今ま.. - 人力検索はてな http://q.hatena.ne.jp/1321153126

my_proxy.rb

#!/usr/bin/env ruby
require 'webrick'
require 'webrick/httpproxy'
require 'optparse'
include WEBrick

#WEBrick::HTTPProxyServer で無理矢理リクエストヘッダを書き換えるプロクシサーバ - PARAGRAPHS
#http://d.hatena.ne.jp/tily/20090511/p1
#
#使い方：ruby my_proxy.rb -r "X-Forwarded-For:58.30.0.0"

# HTTPリクエストヘッダを付加したい - kkkkkkkk <http://d.hatena.ne.jp/kkkkkkkk/20060707/p1>
class MyProxyServer < HTTPProxyServer
  def run(sock)
    while true
      res = HTTPResponse.new(@config)
      req = HTTPRequest.new(@config)

      def req.read_header(socket)
        super
        begin
          @header = HTTPUtils::parse_header(@raw_header)
          @config[:RequestHeaders].each do |k,v|
            @header[k] = [v]
          end
        rescue => ex
          raise  HTTPStatus::BadRequest, ex.message
        end
      end

      server = self
      begin
        timeout = @config[:RequestTimeout]
        while timeout > 0
          break if IO.select([sock], nil, nil, 0.5)
          timeout = 0 if @status != :Running
          timeout -= 0.5
        end
        raise HTTPStatus::EOFError if timeout <= 0 || sock.eof?
        req.parse(sock)
        res.request_method = req.request_method
        res.request_uri = req.request_uri
        res.request_http_version = req.http_version
        res.keep_alive = req.keep_alive?
        server = lookup_server(req) || self
        if callback = server[:RequestCallback] || server[:RequestHandler]
          callback.call(req, res)
        end
        server.service(req, res)
      rescue HTTPStatus::EOFError, HTTPStatus::RequestTimeout => ex
        res.set_error(ex)
      rescue HTTPStatus::Error => ex
        @logger.error(ex.message)
        res.set_error(ex)
      rescue HTTPStatus::Status => ex
        res.status = ex.code
      rescue StandardError => ex
        @logger.error(ex)
        res.set_error(ex, true)
      ensure
        if req.request_line
          req.fixup()
          res.send_response(sock)
          server.access_log(@config, req, res)
        end
      end
      break if @http_version < "1.1"
      break unless req.keep_alive?
      break unless res.keep_alive?
    end
  end
end

# default settings
header_list = []
address = 'localhost'
port = 8080

# option parse
opt = OptionParser.new
opt.on('-r HEADERS', Array  ) {|v| header_list = v }
opt.on('-b ADDRESS', String ) {|v| address     = v }
opt.on('-p PORT',    Integer) {|v| port        = v }
opt.parse!

# create request headers
request_headers = {}
header_list.each do |header|
  field, value = header.split(':')
  request_headers[field] = value
end

# construct proxy server
server = MyProxyServer.new(
  :BindAddress => address,
  :Port => port,
  :Logger => WEBrick::Log::new($stderr, WEBrick::Log::DEBUG),
  :ProxyVia => false,
  :RequestHeaders => request_headers
)

# start server
Signal.trap('INT') { server.shutdown; }
server.start