Prüft periodisch ob eine Prüfung/B-Aufgabe bereits benotet wurde.

wb.rb

#!/bin/env ruby
# encoding: utf-8
# Requirements: Ruby, Highline Gem, Mechanize Gem

require 'rubygems'
require 'mechanize'
require 'highline/import'

#Keep in mind, this setting is evil. But well..
I_KNOW_THAT_OPENSSL_VERIFY_PEER_EQUALS_VERIFY_NONE_IS_WRONG = nil
OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE

REFRESH_INTERVAL_SECONDS = 300

$wb_link = 'https://www.wb-online-campus.de/'
$username_field_id = 'j_username'
$password_field_id = 'j_password'

$username = 'YOUR_USERNAME'#ask('Username:') #alternativ 'USERNAME' ohne ask...
$password = 'YOUR_PASSWORD' #ask('Password:') { |q| #alternativ 'PASSWORD' ohne ask
	#q.echo = '*'	
#}
$modul_to_check = ask("B-Aufgabe/Modul? (B-BWR01XX, IMIPS -> Kurzname der Pruefung)")
$notenseitenlink = ""

$a = Mechanize.new { |agent| 
	agent.user_agent_alias = 'Mac Safari'
	agent.follow_meta_refresh = true
}	

def login()
  #Load login page
  page = $a.get($wb_link)  
  #fill the form
  login_form = page.forms[0]
  username_field = login_form.field_with(:name => $username_field_id)
  password_field = login_form.field_with(:name => $password_field_id)
  username_field.value = $username
  password_field.value = $password
  
  #submit
  main_page = login_form.submit
	  
  #after login page
  #support only first course
  zwischenpagelink = main_page.parser.xpath("//*[@id='start_left_Welcome']/div[4]/table/tbody/tr[1]/td[1]/a/@href").first 
  
  if(zwischenpagelink == nil) 
	puts "Login fehlgeschlagen"
	Process.exit
  end
  
  studiengangseite = $a.get($wb_link << zwischenpagelink)
   
  #get mark view link
  notenuebersichtlink = studiengangseite.parser.xpath("//*[contains(@class, 'menured button')]/@onclick")

  np_link = notenuebersichtlink.inner_html 
  
  #since its an onclick link and not a real link.. 
  np_link = np_link[22..np_link.length]
  
  #get mark overview page
  $notenseitenlink = $wb_link << np_link

end
  
def check_for_grade() 
  #load final page
  notenpage = $a.get($notenseitenlink) 
    
  rows = notenpage.parser.xpath('//table/tbody/tr')
  
  #build hash out of mark table
  grades = rows.collect do |row|
    grade = {}
  [
    [:title, 'td[1]/a/text()'],
    [:finalgrade, 'td[6]/text()'],
   ].each do |name, xpath|
    grade[name] = row.at_xpath(xpath).to_s.strip
  end
  grade
end

  modul_found = false
  
  grades.each do|modul,finalgrade|
    if(modul[:title].downcase == $modul_to_check.downcase) 
      modul_found = true
	  time = Time.new
	  puts "\nPruefung um " << time.strftime("%H:%M") << ": "
	  grade = modul[:finalgrade]
	  if(grade.length == 3) #1.0, 2.4, 3.3, ..., "zu benoten"
		puts "Note vorhanden fuer " << modul[:title].upcase << ": " << grade
		Process.exit
	  end
	  puts "Keine Benotung vorhanden. (" << $modul_to_check.upcase << ")" 
	end  
end

  if(modul_found == false)
    puts "\nModul nicht gefunden."
    Process.exit
  end
  
end
  
login()
while true do
  check_for_grade()
  sleep(REFRESH_INTERVAL_SECONDS)
end