gmail oauth imap zend retrieve from gmail instead of session

Im planning to use google oauth IMAP to sign up for my website. Im using zend framework for the same. http://code.google.com/p/google-mail-xoauth-tools/wiki/PhpSampleCode Also im suing 3 legged approach to sign up When i go through the sample threelegged.php. I find that i t has email address inbox and he keeps it in a session and goes to access the gmail account and once he returns back he retireves the email id from the session

$email_address = $_SESSI开发者_开发百科ON['email_address'];

Line No.121

$config = new Zend_Oauth_Config();

$config->setOptions($options);

$config->setToken($accessToken);

$config->setRequestMethod('GET');

$url = 'https://mail.google.com/mail/b/' . $email_address . '/imap/';

My requirement is i do not want to have email address to be kept in session instead i want the given the gmail address to be retrieved in $email address. How can i do that ? Is any function supporting it in Zend framework?

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http://sites.google.com/site/oauthgoog/Home/emaildisplayscope

You will need to include the authorization url with your other urls you are asking permission to get data from: https://www.googleapis.com/auth/userinfo.email

Then when you actually get the authorized token you can do it like this:

// Get access token from session after authorization process is complete.
$accessToken = unserialize($_SESSION['ACCESS_TOKEN']);

// Retrieve email address using Access Token
$erequest = $accessToken->getHttpClient($options);
$erequest->setUri('https://www.googleapis.com/userinfo/email');
$erequest->setMethod(Zend_Http_Client::GET);
$ereturn = $erequest->request();
parse_str($ereturn->getBody(), $earray);
$email_address = $earray['email'];

// Retrieve mail using Access Token
$config = new Zend_Oauth_Config();
$config->setOptions($options);
$config->setToken($accessToken);
$config->setRequestMethod('GET');
$url = 'https://mail.google.com/mail/b/' .
   $email_address . 
   '/imap/';

This is after authenticating a token for accessing the data. Then the email address can be used for your mail request or anything else that requires the email address.