Technical

参考:Ruby/Pcap拡張ライブラリ

#!/usr/bin/ruby

require 'pcap'

def cap_data(dev,filstr,count)
  # [device],[snaplen],[promisc?],[read timeout(ms)]
  pcaplet = Pcap::Capture.open_live(dev,1460,true,1000)

  access = Pcap::Filter.new(filstr,pcaplet)
  pcaplet.setfilter(access)
  pcaplet.each_packet(count) do |pkt|
    odata = String.new
    if pkt.tcp? == true then
       odata = "[TCP]"
       odata = odata + pkt.ip_src.to_s + ":" + pkt.tcp_sport.to_s + " -> "
       odata = odata + pkt.ip_dst.to_s + ":" + pkt.tcp_dport.to_s + " "
       odata = odata + pkt.tcp_data.to_s
       p odata
    elsif pkt.udp? == true then
       odata = "[UDP]"
       odata = odata + pkt.ip_src.to_s + ":" + pkt.udp_sport.to_s + " -> "
       odata = odata + pkt.ip_dst.to_s + ":" + pkt.udp_dport.to_s + " "
       odata = odata + pkt.udp_data.to_s
       p odata
    elsif pkt.ip? == true then
       odata = "[IP]"
       odata = odata + pkt.ip_src.to_s + " -> "
       odata = odata + pkt.ip_dst.to_s ; " "
       odata = odata + pkt.ip_data.to_s
       p odata
    end
  end
  pcaplet.close
end

# [capture device],[filter strings],[count(負の数だと無限繰り返し)]
# SSH通信をFilter(リモート作業の関係で)
cap_data("eth0","!src port 22 and !dst port 22",-1);

exit

"[UDP]172.16.1.1:53 -> 172.20.0.130:37717 a\264\201\200\000\001\000\003\000\000\000\000\003ftp\002jp\006debian\003org\000\000\001\000\001\300\f\000\005\000\001\000\000\vA\000\022\003cdn\006debian\002or\002jp\000\300/\000\005\000\001\000\006v]\000\022\002jp\003cdn\005araki\003net\000\300M\000\001\000\001\000\000\000<\000\004\226A\a\202"
"[TCP]172.20.0.130:54574 -> 150.65.7.130:80 "
"[TCP]172.20.0.130:54574 -> 150.65.7.130:80 GET /debian/dists/squeeze/Release.gpg HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nCache-Control: max-age=0\r\nIf-Modified-Since: Sat, 19 Mar 2011 13:23:11 GMT\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\nGET /debian/dists/squeeze/main/i18n/Translation-en.bz2 HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\nGET /debian/dists/squeeze/main/i18n/Translation-ja.bz2 HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nIf-Modified-Since: Fri, 04 Feb 2011 12:30:31 GMT\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\nGET /debian/dists/squeeze-updates/Release.gpg HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nCache-Control: max-age=0\r\nIf-Modified-Since: Fri, 27 May 2011 02:22:14 GMT\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\nGET /debian/dists/squeeze-updates/main/i18n/Translation-en.bz2 HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\nGET /debian/dists/squeeze-updates/main/i18n/Translation-ja.bz2 HTTP/1.1\r\nHost: ftp.jp.debian.org\r\nConnection: keep-alive\r\nUser-Agent: Debian APT-HTTP/1.3 (0.8.10.3)\r\n\r\n"

Ruby 逆引きレシピ すぐに美味しいサンプル&テクニック 232 (PROGRAMMER’S RECIPE)

posted with AZlink at 2011.5.27

島田 浩二,設樂 洋爾,村田 賢太,前田 智樹,谷口 文威
翔泳社
売り上げランキング: 337186

Amazon.co.jp で詳細を見る

#! /usr/bin/ruby -Ku

require "rubygems"
require 'oauth'
require 'rubytter'

require 'net/http'
require 'open-uri'
require 'rexml/document'
require 'rss/2.0'
require 'cgi'

# 定義
CONSUMER_KEY = 'AAA'
CONSUMER_SECRET = 'BBB'

ACCESS_TOKEN = 'CCC'
ACCESS_SECRET ='DDD'

APPID = 'EEE'
APIURI = 'http://api.microsofttranslator.com/V2/Http.svc/Translate'

PDATA = Array.new

# TinyURL化メソッド
def tinyurl(link)
  url = "http://tinyurl.com/api-create.php?url=" + link
  open(url) do |http|
    res = http.read
    return res
  end
end

# RSSから記事を取得して翻訳、配列に入れる
def getRss(site,rssuri,tmpfile)
  slink = nil

  open(tmpfile,'r') do |lfile|
    lfile.each do |link| slink = link.chop end
  end

  open(rssuri) do |http|
    flg = 0
    rssres = http.read
    result = RSS::Parser.parse(rssres, false)
    result.items.each do |item|
      link = item.link
      if link == slink then break end
      if flg == 0 and link != slink then
        open(tmpfile,'w') do |lfile|
          lfile.puts link
        end
        flg = 1
      end

      title = item.title
      etxt = CGI.escape(title)

      open(APIURI + "?appId=#{APPID}&text=#{etxt}&from=en&to=ja") do |http|
        xml = http.read
        doc=REXML::Document.new xml
        jptitle = doc.elements['/string'].text
        tulink = tinyurl(link)
        mess = jptitle + " " + tulink
        PDATA.push mess
      end
    end
  end
end

# Twitterに投稿するところ
begin
  getRss('[AllHipHop]','http://allhiphop.com/stories/news/rss.aspx','ahh.txt')
  getRss('[HipHopDX]','http://feeds.feedburner.com/hiphopdx/news','hhdx.txt')

  PDATA.each do |data|
    # Twitter Post
    consumer = OAuth::Consumer.new(
      CONSUMER_KEY,
      CONSUMER_SECRET,
      :site => 'http://twitter.com'
    )

    token = OAuth::AccessToken.new(
      consumer,
      ACCESS_TOKEN,
      ACCESS_SECRET
    )

    client = OAuthRubytter.new(token)
    client.update(data)

    sleep 60
  end

rescue
  print "RuntimeError: ", $!, "\n";
end

Ruby 逆引きレシピ すぐに美味しいサンプル&テクニック 232 (PROGRAMMER’S RECIPE)

posted with AZlink at 2011.3.24

島田 浩二,設樂 洋爾,村田 賢太,前田 智樹,谷口 文威
翔泳社
売り上げランキング: 25485

Amazon.co.jp で詳細を見る