How to get userdata from encrypted sessions database according to session id?

Code:

/*

    Cookie Plug-in

    

    This plug in automatically gets all the cookies for this site and adds them to the post_params.

    Cookies are loaded only on initialization.  The refreshCookies function can be called to update the post_params.

    The cookies will override any other post params with the same name.

*/



var SWFUpload;

if (typeof(SWFUpload) === "function") {

    SWFUpload.prototype.initSettings = function (oldInitSettings) {

        return function () {

            if (typeof(oldInitSettings) === "function") {

                oldInitSettings.call(this);

            }

            

            this.refreshCookies(false);    // The false parameter must be sent since SWFUpload has not initialzed at this point

        };

    }(SWFUpload.prototype.initSettings);

    

    // refreshes the post_params and updates SWFUpload.  The sendToFlash parameters is optional and defaults to True

    SWFUpload.prototype.refreshCookies = function (sendToFlash) {

        if (sendToFlash === undefined) {

            sendToFlash = true;

        }

        sendToFlash = !!sendToFlash;

        

        // Get the post_params object

        var postParams = this.settings.post_params;

        

        // Get the cookies

        var i, cookieArray = [removed].split(';'), caLength = cookieArray.length, c, eqIndex, name, value;

        for (i = 0; i < caLength; i++) {

            c = cookieArray[i];

            

            // Left Trim spaces

            while (c.charAt(0) === " ") {

                c = c.substring(1, c.length);

            }

            eqIndex = c.indexOf("=");

            if (eqIndex > 0) {

                name = c.substring(0, eqIndex);

                value = c.substring(eqIndex + 1);

                postParams[name] = value;

            }

        }

        

        if (sendToFlash) {

            this.setPostParams(postParams);

        }

    };



}

Code:

$session = $this->CI->input->cookie($this->sess_cookie_name);



// No cookie?  Goodbye cruel world!...

if ($session === FALSE)

{

    log_message('debug', 'A session cookie was not found.');

    return FALSE;

}



// Decrypt the cookie data

if ($this->sess_encrypt_cookie == TRUE)

{

    $session = $this->CI->encrypt->decode($session);

}

Code:

// catch the encrypted cookie

$enc_cookie = $this->input->post('sess_cook');

        

// decode the encrypted cookie

$cookie = $this->encrypt->decode($enc_cookie);

$session = unserialize($cookie);



// put the session username (from the cookie, not from session) in the database just to test

$this->load->model('my_model');

$this->my_model->insert($session['username']);