How can I get sso login info ''urlc'' in a portlet?

Question

For partner-app, when the user tries to access the app through a direct url, the user will be directed to the portal's sso login page. After the portal's sso authenticates the user, it will redirect the user back to the app with the authentication information (urlc to be more specific) appended to the url. The app then can use this urlc information to call the sso-sdk api to get user info and to set cookie etc.
Instead of having the user to access the app directly by typing the url in the browser, I create a "gateway" portlet to display a link to the app and inport the portlet in a portal page. When the user gets to this portal page, the user has already logged in, therefore when the user clicks on the link, the user should not be redirected to portal's sso login page. In order to do that, I have to insert the urlc information in the link. My question is, how can it get the urlc information, therefore when I create the link dymanically in the gateway portlet, I can insert it into it? FYI - I am writing the gateway portlet in java. Is there any java api in the jpdk that I can use to get the urlc information?
Thanks
Vince

Answer 1

The easiest way would be to set a SESSION of the username, and then insert the contents of that SESSION into the classified table's username field. You need to register a SESSION on every page of your site by placing <?php session_start(); ?> at the top of every page (in code view). This must be the very first line of code. Using SESSIONS is very handy because it stores any information that you want in a cookie - except that this is stored on the server (not the user's hard drive) and is destroyed when the user quits the browser.
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<br />Here's a couple of different ways to get you started
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<code>
<br /><?php session_start(); ?>
<br /><?php require_once('Connections/conn.php'); ?>
<br /><?php<br /> // check to see if the username session is set<br><br /> if(!isset($_SESSION['username'])) {<br />  // it's not, register the username session<br />  $_SESSION['username'] = $username;<br /> }<br /> <br /> // or grab the username from the $_POST of the login form<br /> $username = trim($_POST['username']);<br /> $_SESSION['username'] = $username;<br /> <br /> // insert into classifieds table<br /> $sql = mysql_query("INSERT INTO classifieds (username) VALUES('".$_SESSION['username']."')") or die(mysql_error());<br />?>
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</code>