在Steam上登录-CasperJS

Question

I want to login on Steam with CasperJS, but it just dont want to work.

This is my code:

var url = 'https://steamcommunity.com/login/';

casper.start(url, function() {
    console.log("page loaded");


casper.waitForSelector("form input[name='username']", function() {
}, true);   
    this.fill('form[name="logon"]', { 
        username: 'username', 
        password:  'password'
    }, true);
    this.click('form input#SteamLogin');
});

After executing this code, CasperJS said:

[info] [remote] submitting form to #, HTTP POST
[warning] [remote] unable to submit form

I also used the function "StartLogin" (i found the function in the sourcecode of steam) and executed it with this:

casper.evaluate(function(){
    StartLogin();
});

But CasperJS came up with this error:

Page Error: ReferenceError: Can't find variable: StartLogin

Would be very thankful, if someone could help me :)

Answer 1

Your problem is quite vague, but I am trying to help

You have to know the difference between the casper.evaluate and the classic assert statement, I think you mixed something up there

casper.evaluate evaluates a specific statement in the context of phatom, it doesnt evaluate any functions. If you want to evaluate the proper return of a function use it like this:

var val = casper.evaluate(function() {if(true) return 'foo';});
test.assertEquals(val,'foo');

I hope I could help you a little bit, for further infos look at:

1. CasperJS evaluate
2. Tester module casper
3. CasperJS Plugin for Chrome

Answer 2

In the fill function you are setting the submit bool to true so the form is being submitted after the username and password are filled out.

Take out the this.click , then add casper.then(function(){}) to the end to execute your next command.

Basically you are trying to click a button that is not there because you have already moved on to the next page by submitting your form.

Hope this helps!