Retrieve cookie expiration time in javascript or jquery

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3

Is there any way to recover the remaining time for expiration of a javascript or jquery cookie?

javascript jquery cookies

  • When you write "recover" you mean know the time you have? or change (set again)?

  • I want to know how much longer to expire.

  • Have you tried it $.cookie('nome_do_cookie');?

  • Yes and this does not bring a cookie object just the value of it.

2 answers

5


You simply cannot get this kind of information with Javascript because it is not available at document.cookie.

However, as there is a common whim for everything, if you are the person setting this cookie, you can create a second to serve as a support, storing in it the creation dates.

  • I researched here too and that’s really it. Thank you for the answer

  • I wasn’t sure about that either. I spent about 40 minutes researching and testing alternative solutions suggested in Soen, confirming in several other sites, blogs, mailing lists etc. until arriving at a definitive opinion, including with a wrong but viable alternative. I just wish I could have brought something from an RFC, but I couldn’t find anything in the text that specifically said that.

5

You already have an accepted answer and in fact it is correct because you can not read this information.

I leave one more reply with an idea in case the Cookie is created by you. You can write the end date in the Cookie itself.

var data = new Date();
data.setSeconds(data.getSeconds() + 10); // Cookie com 10 segundos de vida
data = new Date(data);

$.cookie('meu_cookie', data, {
    expires: data
});

Example: http://jsfiddle.net/6pQ5T/

Note that Cookies can be changed by the user and are therefore not to be trusted.

  • 1

    Very good answer too. I know this cookie vulnerability but I also measured the risk, because the key and value of the cookie are encrypted in Ceaser. Any change causes it to fall into the false block of if.

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