<?php  
$extra_base_url = _singlesignon_base_url();


// 	if (!session_save_session() )  	  { print "sessions not being save <br>"; } 	else { print "sessions being saved <br>"; }
//	print ("Single Sign On Base Url =" . $extra_base_url . "<br>" );  // WORKS
//	print ("Single Sign On Master  Url =" . $master_url . "<br>" );   // WORKS


// this seems pretty straight forward -   if singlesignon prior id is empty 
// or not the same as current session id then..
// then set a prior session and go off to the main site to check on things.

//	print ( " DIRECT FROM SESSION SINGLE SIGNON PRIOR ID " . $_SESSION['singlesignon_prior_sid'] );

// this reads our forced cookie into the $_SESSION bit...  
if (isset($_COOKIE[priorid]) )
	{
		$cookievar= $_COOKIE[priorid];
		//	print ("before cookied prior id =" . $cookievar . "<br>" );
		$_SESSION['singlesignon_prior_sid'] = $cookievar;
	}


// ORIGINAL GOOFY IF STATEMENT  if (empty($_SESSION['singlesignon_prior_sid']) || $_SESSION['singlesignon_prior_sid'] != session_id()) 
// if the prior_sid is empty of course its not gonna equal the session id  no??
//  take asway the first part of the OR goody.

// THIS IS GETTING CLOSER BUT WANT TO TEST MORE


//  i think that this bit is an array and needs a 
//  if session id IN $_SESSION[ss_p_sid][] extra bracket.   or something i dunno.
//  php syntax masters maybe a little help??

  if ( $_SESSION['singlesignon_prior_sid'] != session_id()) 
// if ( TRUE ) 

	{
//	    print ("Inside the goofy or statement <br>");
//	    print ("before we do anything SesID : " . session_id() . "<br>");
//	    print ("before we do anything PriorSes ID: " . $_SESSION['singlesignon_prior_sid'] . "<br>");

		// ok   Prior Session Id isnt getting written out right.

	    if ($extra_base_url != $master_url) 
		// this just means if we are on a slave site do this.
		// User was sent back to slave site and were gonna find out whats going on
		{
//		 print ("We are on a slave site<br>");  // WORKS
		      if (!empty($_GET['singlesignon_dest'])) 
				{
		       	 // User was sent back to a slave site by this module but doesn't have
			        // a session.  They clearly don't have cookies enabled.
		       	 drupal_set_message(t('Cookies are required.'), 'error');
			        return;
			      }

	      // This is the user's first hit to a slave site.  Take note of their
	      // session ID, since that's how we tell if they've been here or not.
	      // Then go to the master site to see if they are logged in over there.

		$testvar = session_id();
//		print ( "Afterwards SESSION ID Var : " . $testvar . "<br>");
		$_SESSION['singlesignon_prior_sid'] = $testvar;

		// this forces the prior id into a cookie -  somehow sessions deal doesnt appear to work right
		// maybe its storing an array ..   but whatever.   this works when caught before the if statement

		setcookie ("priorid",$testvar);
		$cookievar= $_COOKIE[priorid];
//		print ("afterwards cookied prior id =" . $cookievar . "<br>" );

		//	      	$_SESSION['singlesignon_prior_sid'] = session_id();  // replace this out to make sure is working


	      _singlesignon_goto_url($master_url, 'singlesignon/initial_check');

		// this part appears to work .   sends off to master url all happy, 
		// but comes back and loops forever.   worked before.  
		//  issue has to be in the logic above ( i hope )

	    }


  	}  // end goofy or statement