簡易Wget

wget や ブラウザが使用できない際に、rubyで簡易的にページを取得

レスポンスヘッダ等の情報が知りたい場合に使用

http_get.rb

#!/bin/env ruby
require 'net/http'

if ARGV.size == 0
  puts "usage: httpget.rb <url>"
  exit 1
end

url=ARGV[0]
schema, tmp=url.split("://")
pos=tmp.index("/")
if pos.nil?
  host = tmp
else
  host = tmp[0, pos]
  path = tmp[pos..-1]
end

path = "/" if path.nil?

http = Net::HTTP.new(host, 80);

request_header = {}
request_header["User-Agent"] = "hogehoge"
request_header["Connection"] = "Keep-Alive"

response = http.get(path, request_header)

puts "STATUS CODE: #{response.code}"
  response.each { |k,v|
  puts "#{k} : #{v}"
}

puts "outputing res_body.dat"
File.open("res_body.dat", "w") { |file|
  file.write response.body
}

[user@hoge script]$ ruby ./http_get.rb http://www.google.co.jp
STATUS CODE: 200
server : gws
vary : Accept-Encoding
expires : -1
accept-ranges : none
set-cookie : PREF=ID=1111111111111111:FF=0:TM=1444185579:LM=1444185579:V=1:S=1Ld2B6b7S-uc3Oym; expires=Thu, 31-Dec-2015 16:02:17 GMT; path=/; domain=.google.co.jp, NID=72=mOgQBVn1blEgYNHYcNUahz-1hm1zaUxBXLvvBgzrEKY7YuZ98J08Ik0iPzN9Y3NtamsaR5lxybhboylr8GH4osO_Mh8T0AL4WTVyAeFmUUuE65Vd4goG9f1r0SqCwRqdvL_ZdQ; expires=Thu, 07-Apr-2016 02:39:39 GMT; path=/; domain=.google.co.jp; HttpOnly
p3p : CP="This is not a P3P policy! See http://www.google.com/support/accounts/bin/answer.py?hl=en&answer=151657 for more info."
x-frame-options : SAMEORIGIN
transfer-encoding : chunked
date : Wed, 07 Oct 2015 02:39:39 GMT
cache-control : private, max-age=0
content-type : text/html; charset=Shift_JIS
x-xss-protection : 1; mode=block
outputing res_body.dat