Vkontakte Ruby Net::HTTP

1_params.rb

require 'net/http'

email = '[email protected]'
pass  = 'secret'

client_id     = '1234567'
scope         = 'friends,audio'
redirect_uri  = 'http://oauth.vk.com/blank.html'
display       = 'wap'
response_type = 'code'

2_auth_page.rb

url = "http://oauth.vk.com/oauth/authorize?client_id=#{client_id}&scope=#{scope}&redirect_uri=#{redirect_uri}&display=#{display}&response_type=#{response_type}&_hash=0"
uri = URI(url)
request = Net::HTTP::Get.new(uri.request_uri)
response = Net::HTTP.start(uri.host, uri.port){ |http| http.request(request) }

3_login_form.html

<form method="POST" action="https://login.vk.com/?act=login&soft=1&utf8=1">
<input type="hidden" name="q" value="1">
<input type="hidden" name="from_host" value="oauth.vk.com">
<input type="hidden" name="from_protocol" value="http">
<input type="hidden" name="ip_h" value="e1b62a2b2aaaaecec4" />
<input type="hidden" name="to" value="aHR0cDovL29hdXRoLnZrLmNvbS9vYXV0aC9hdXRob3JpemU/Y2xpZW50X2lkPTE5MTUxMDgmcmVkaXJlY3RfdXJpPWJsYW5rLmh0bWwmcmVzcG9uc2VfdHlwZT1jb2RlJnNjb3BlPTImc3RhdGU9JmRpc3BsYXk9d2Fw">
<span class="label">Телефон або e-mail:</span><br />
<input type="text" name="email"><br />
<span class="label">Пароль:</span><br />
<input type="password" name="pass">
<div style="padding: 8px 0px 5px 0px">
<div class="button_yes">
  <input type="submit" value="Увійти" />
</div>
<a class="button_no" href="https://oauth.vk.com/grant_access?hash=c67933e7624f531360&client_id=1915108&settings=2&redirect_uri=blank.html&cancel=1&state=&token_type=0">
  <div>
  Скасувати
  </div>
</a>
</form>

4_parse_form.rb

params = {
  :q             => response.body[/name="q" value="(.+?)"/, 1],
  :from_host     => response.body[/name="from_host" value="(.+?)"/, 1],
  :from_protocol => response.body[/name="from_protocol" value="(.+?)"/, 1],
  :ip_h          => response.body[/name="ip_h" value="(.+?)"/, 1],
  :to            => response.body[/name="to" value="(.+?)"/, 1]
}

url = response.body[/<form method="POST" action="(.+?)"/, 1]

5_authorization.rb

uri = URI(url)

params.merge!(email: email, pass: pass)

request = Net::HTTP::Post.new(uri.request_uri)
request.set_form_data(params)

response = Net::HTTP.start(uri.host, uri.port,
  :use_ssl => uri.scheme == 'https') {|http|
  http.request(request)
}

6_get_cookie.rb

if response.code == '302'
  url = response['location']
end
uri = URI(url)

request = Net::HTTP::Get.new(uri.request_uri)

response = Net::HTTP.start(uri.host, uri.port,
  :use_ssl => uri.scheme == 'https') {|http|
  http.request(request)
}

remixsid = /remixsid=(.+?);/.match(response['set-cookie'])[1]
header = { "Cookie" => 'remixsid=' + remixsid }

7_set_cookie.rb

if response.code == '302'
  url = response['location']
end
uri = URI(url)

request = Net::HTTP::Get.new(uri.request_uri, header)

response = Net::HTTP.start(uri.host, uri.port,
  :use_ssl => uri.scheme == 'https') {|http|
  http.request(request)
}

8_get_code.rb

if response.code == '302'
  url = response['location']
  code = /code=(.+)$/.match(url)[1]
elsif response.code == '200'
  url = /<form method="POST" action="(.+?)"/.match(response.body)[1]
  uri = URI(url)

  request = Net::HTTP::Post.new(uri.request_uri, header)

  response = Net::HTTP.start(uri.host, uri.port,
    :use_ssl => uri.scheme == 'https') {|http|
    http.request(request)
  }

  if response.code == '302'
    url = response['location']
    code = /code=(.+)$/.match(url)[1]
  end
end

puts 'code=' + code