javascript - Automatic login script for a website on windows machine?

Question

I saw some guy had a file (I guess a batch file). On clicking of the batch file he was able to log in to multiple sites. (Perhaps it was done using VB.)

I looked for such a script on Google but didn't find anything useful.

I know a bit of C++ and UNIX (also some HTML and JavaScript). I don't know if it can be done on a windows machine using these languages, but even if it could be done I think it would be difficult compared to VB or C## or some other high level languages.

I learned how to open multiple sites using basic windows batch commands enclosed in a batch file like:

start http://www.gmail.com
start http://stackoverflow.com

But still I can't figure out how actually clicking on the batch file would help me to log in to the sites without even typing the username and password.

Do I need to start learning Visual Basic, .NET, or windows batch programming to do this?

One more thing: can I also use it to log in to remote desktops?

Answer 1

From the term "automatic login" I suppose security (password protection) is not of key importance here.

The guidelines for solution could be to use a JavaScript bookmark (idea borrowed form a nice game published on M&M's DK site).

The idea is to create a javascript file and store it locally. It should do the login data entering depending on current site address. Just an example using jQuery:

// dont forget to include jQuery code
// preferably with .noConflict() in order not to break the site scripts
if (window.location.indexOf("mail.google.com") > -1) {
    // Lets login to Gmail
    jQuery("#Email").val("[email protected]");
    jQuery("#Passwd").val("superSecretPassowrd");
    jQuery("#gaia_loginform").submit();
}

Now save this as say login.js

Then create a bookmark (in any browser) with this (as an) url:

javascript:document.write("<script type='text/javascript' src='file:///path/to/login.js'></script>");

Now when you go to Gmail and click this bookmark you will get automatically logged in by your script.

Multiply the code blocks in your script, to add more sites in the similar manner. You could even combine it with window.open(...) functionality to open more sites, but that may get the script inclusion more complicated.

Note: This only illustrates an idea and needs lots of further work, it's not a complete solution.