Cannot Login to Amazon with Ruby Mechanize

Question

I am attempting to login to Amazon using the Ruby gem Mechanize. I always get kicked back to the sign in page without any sort of error message. I am wondering if this is a bug with Mechanize or if Amazon blocks this sort of access. I have code below that you can irb to test.

@mechanizer = Mechanize.new

@mechanizer.user_agent_alias = 'Mac Safari'

@page = @mechanizer.get("https://www.amazon.com/ap/signin?_encoding=UTF8&openid.assoc_handle=usflex&openid.return_to=https%3A%2F%2Fwww.amazon.com%2Fgp%2Fyourstore%3Fie%3DUTF8%26ref_%3Dpd_irl_gw&openid.mode=checkid_setup&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.pape.max_auth_age=0&openid.ns.pape=http%3A%2F%2Fspecs.openid.net%2Fextensions%2Fpape%2F1.0&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select")

form = @page.form_with(:id => "ap_signin_form")

field = form.field_with(:name => "email")
field.value = "[email protected]"

radiobutton = form.radiobutton_with(:name => 'create', :value => '0')
radiobutton.check

button = form.button_with(:id => "signInSubmit")

@page = form.submit button

Thanks for any help.

Answer 1

Try this,

#!/usr/bin/env ruby

require "rubygems"
require "mechanize"

class AmazonCrawler
  def initialize
    @agent = Mechanize.new do |agent|
      agent.user_agent_alias = 'Mac Safari'
      agent.follow_meta_refresh = true
      agent.redirect_ok = true
    end
  end

  def login
    login_url = "https://www.amazon.com/ap/signin?_encoding=UTF8&openid.assoc_handle=usflex&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.mode=checkid_setup&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&openid.ns.pape=http%3A%2F%2Fspecs.openid.net%2Fextensions%2Fpape%2F1.0&openid.pape.max_auth_age=0&openid.return_to=https%3A%2F%2Fwww.amazon.com%2Fgp%2Fyourstore%2Fhome%3Fie%3DUTF8%26ref_%3Dgno_signin"
    @agent.get(login_url)
    form = @agent.page.forms.first
    form.email = "[email protected]"
    form['ap_signin_existing_radio'] = "1"
    form.password = "password"
    dashboard = @agent.submit(form)
    File.open('dashboard.html', 'w') {|file| file << dashboard.body }
  end
end

AmazonCrawler.new.login

The mechanize documentation has some cool examples. This cheat sheet is also handy for quick references.