casper_lbb.js

var casper = require('casper').create({
    pageSettings: {
        loadImages: false,
        loadPlugins: false
    },
    logLevel: "info",
    verbose: true
});

casper.start('https://kreditkarten-banking.lbb.de/Amazon/cas/dispatch.do?bt_PRELON=do&ref=1200_AMAZON&service=COS', function() {
    this.fillSelectors('form[name=preLogonForm]', {
        'input[name=user]': 'NUMMER',
        'input[name=password]': 'PASSWORT',
    }, false);

    this.click('input[name=bt_LOGON]');
});

casper.waitForText('Kartenumsätze', function() {
    this.clickLabel('Kartenumsätze');
})

casper.then(function() {
    var url = this.getElementAttribute('a[href*="CSV"]', 'href');
    this.download(url, 'rechnung_' + (new Date()).getTime() + '.csv');
})

casper.run();