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Enhance security of cookie-based login

Revision #7 has been created by darkheir on Sep 2, 2014, 4:48:31 PM with the memo:

Code formatting
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Enhance security of cookie-based login

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How-tos

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login, cookie, security

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[...]
// Generate a login token and save it in the DB
$user->logintoken = sha1(uniqid(mt_rand(), true));
$user->save();

                 //the login token is saved as a state
$this->setState(self::LOGIN_TOKEN, $user->logintoken);
[...]
There is a great library for generating random numbers and strings created by Anthony Ferrara that you could use: [RandomLib](https://github.com/ircmaxell/RandomLib).

In my configuration file, in the params section I have a `rememberMeTime` key holding the time a user may be cookie-logged, in seconds.
 
 
###The WebUser component

Then we are going to extend the CWebUser component to check if the cookie value matches the DB in the beforeLogin method.
[...]
$cookieLogintoken = $states[UserIdentity::LOGIN_TOKEN];
if(isset($cookieLoginToken, $user)
                   && $cookieLoginToken == $user->logintoken) {      return true; } return false; } } ```
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Version: 1.1
Category: How-tos
Tags: cookie, login, security
Written by: darkheir
Last updated by: darkheir
Created on: Aug 4, 2014
Last updated: 9 years ago
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