Ruby Starter code for the Crypto Challenge

CryptoApi.ru

require 'rest-client'
require 'json'
require 'pp'

class CryptoAPI

  def initialize(email)
    @base = 'http://crypto.praetorian.com'
    @email = email
    @token = self.token
  end

  def token
    data = {'email' => @email}.to_json
    ret = RestClient.post "#{@base}/api-token-auth/", data, :content_type => :json, :accept => :json
    JSON.parse(ret)['token']
  end

  def fetch(n)
    ret = RestClient.get "#{@base}/challenge/#{n}/", :content_type => :json, :accept => :json, :Authorization => "JWT #{@token}"
    JSON.parse(ret)
  end

  def solve(n, guess)
    data = {'guess' => guess}
    ret = RestClient.post "#{@base}/challenge/#{n}/", data, :content_type => :json, :accept => :json, :Authorization => "JWT #{@token}"
    JSON.parse(ret)
  end

  def status
    ret = RestClient.get "#{@base}/hash/", :content_type => :json, :accept => :json, :Authorization => "JWT #{@token}"
    JSON.parse(ret)
  end


end

# Class values

# Declare Class
crypto = CryptoAPI.new('EMAIL@EMAIL.COM')

# Fetch level 0
level = 0
data = crypto.fetch(level)

# Level 0 is a freebie and gives you the password
guess = data['challenge']
h = crypto.solve(level, guess)

d = crypto.status

puts 'Praetorian Crypto Challenge'
puts "  Level: #{d['level']}"
puts "  Hash: #{d['hash']}"