Holt Kreditkartenumsätze von Pluscard ab

pluscard.rb

require 'mechanize'

class Pluscard

  START = 'https://www.pluscard.de/kris/anmeldung/anmeldung.php'

  Entry = Struct.new(:number,:buchungsdatum,:belegdatum,:betrag,:text)

  def initialize(username,password)
    @username = username
    @password = password
    @agent    = Mechanize.new
  end

  def list
    login unless @numbers
    invoices = []
    @numbers.each do |number|
      select_card number
      page = get '/kris/umsaetze/index.php'

      next if page.body.include?("Es liegen keine aktuellen Ums")

      table = page.at("table[width='100%']") or (raise "table not found")

      table.elements.each do |row|
        if (cells = row.search("td[class^=tabellenzeile]")).any?
          invoices << Entry.new(
            number,
            Date.parse(cells[0].text),
            Date.parse(cells[1].text),
            BigDecimal.new(cells[2].text.gsub("- ","-").sub("EUR","").gsub(".","").sub(",",".").gsub(/[\u00A0 ]/,"")),
            cells[3].children.select{|c| Nokogiri::XML::Text===c }.map{|c| c.text.gsub(/[\u00A0 ]+/," ").strip }.join("\n")
          )
        end
      end
    end
    invoices
  end

  protected

  def login
    page          = get(START)
    form          = page.form("login")
    form.krednr   = @username
    form.kennwort = @password

    # Einloggen
    page = form.submit

    # Login fehlgeschlagen?
    raise LoginException if page.uri.path != '/kris/saldo/index.php'

    @csrf    = page.forms[0].CSRFToken
    @numbers = page.search("input[name=krednr]").collect{|input| input["value"] }

    raise ArgumentError, "Keine Kreditkarten gefunden" if @numbers.empty?
  end

  # Wählt eine Kreditkarte aus.
  # Die Ausgewählte wird in der Session gespeichert.
  def select_card(number)
    get '/kris/common/navigation.php', abrechnung_neu: "J", krednr: number
  end

  def get(path, params={})
    url = path.sub(/^\.\./,'/kris')
    url << "?" << params.merge(CSRFToken: @csrf).to_param if @csrf && !url.include?("?")
    @agent.get url
  end

end