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Custom HTTP/HTTPS GET/POST queries in Ruby (See related posts)

First, the scripts sends the GET query to read the website cookies (for session, etc.), and then it sends a POST query with the received cookies and custom POST parameters.

require 'net/http'
require 'net/https'

http = Net::HTTP.new('profil.wp.pl', 443)
http.use_ssl = true
path = '/login.html'

# GET request -> so the host can set his cookies
resp, data = http.get(path, nil)
cookie = resp.response['set-cookie']


# POST request -> logging in
data = 'serwis=wp.pl&url=profil.html&tryLogin=1&countTest=1&logowaniessl=1&login_username=blah&login_password=blah'
headers = {
  'Cookie' => cookie,
  'Referer' => 'http://profil.wp.pl/login.html',
  'Content-Type' => 'application/x-www-form-urlencoded'
}

resp, data = http.post(path, data, headers)


# Output on the screen -> we should get either a 302 redirect (after a successful login) or an error page
puts 'Code = ' + resp.code
puts 'Message = ' + resp.message
resp.each {|key, val| puts key + ' = ' + val}
puts data

to ruby http https cookies by paulgoscicki on Wed Oct 05 23:50:12 -0400 2005

Comments on this post

Louis posts on Feb 20, 2006 at 10:43
Ahh, I just spent the last ... oh I don't know how long - lets say three hours - trying to get this code to work. I finally did, but the problem was I needed to specify a user agent!

So here's my code snippet in full - and get2/post2 is interchangable with get/post, the difference is that the 2 is safer, it won't toss any Net:: Errors.

Also notice that I URL encoded the username and password.

require "net/http"
require "net/https"
require "erb"
require "singleton"

PANEL = 'panel.dreamhost.com'
PATH = '/index.cgi'
USERAGENT = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1'

class Panel
  include Singleton
  
  def Panel.login(webid, password)
    unless @headers.nil?
      raise ScriptError, "You should already be logged in!"
    end
  
    @http = Net::HTTP.new(PANEL, 443)
    @http.use_ssl = true
  
    # GET request -> so the host can set cookies
    resp, data = @http.get2(PATH, {'User-Agent' => USERAGENT})
    cookie = resp.response['set-cookie'].split('; ')[0]
    
    # POST request -> logging in
    data = "Nscmd=Nlogin&username=#{ERB::Util.url_encode(webid)}&password=#{ERB::Util.url_encode(password)}&submit=Log%20In"
    @headers = {
      'Cookie' => cookie,
      'Referer' => 'https://'+PANEL+PATH,
      'Content-Type' => 'application/x-www-form-urlencoded',
      'User-Agent' => USERAGENT
    }

    puts "headers = " + @headers.inspect
    
    resp, data = @http.post2(PATH, data, @headers)

    # Output on the screen -> we should get either a 302 redirect (after a successful login) or an error page
    puts 'Code = ' + resp.code
    puts 'Message = ' + resp.message
    resp.each {|key, val| puts key + ' = ' + val}
    puts data
  end
end


If you curious, I'm scraping my own API for DreamHost's Control Panel, so I don't have to labourously open my web browser every time I need to add or change something. (Yeah, I'm that lazy.)

Anyway, its unfinished, I'll be refactoring the code next - the Panel.login method was just for testing.

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