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<?
// Course/get_HTTP_REFERER.phpinc
debugTrackBegin();
#setDebugOn();
if (dc()) { echo basename(__FILE__)," line ",__LINE__,": ","<b>".__FILE__."</b><br>\n"; }
#printVar('$_GET',$_GET);
#printVar('$_POST',$_POST);
#printVar('$_SERVER',$_SERVER);
$f_HTTP_REFERER = formValue('HTTP_REFERER');
if ($f_HTTP_REFERER == '') {
if (isset($_SERVER['HTTP_REFERER'])) {
$f_HTTP_REFERER = $_SERVER['HTTP_REFERER'];
} else {
$f_HTTP_REFERER = '';
}
}
#printVar('$f_HTTP_REFERER',$f_HTTP_REFERER);
$argAdd = array();
$urlQueryChar = '';
if ( strpos($f_HTTP_REFERER,'?') !== false ) {
$args = explode('&',substr($f_HTTP_REFERER,strpos($f_HTTP_REFERER,'?')+1));
$f_HTTP_REFERER = substr($f_HTTP_REFERER,0,strpos($f_HTTP_REFERER,'?')); // Strip urlQuery.
#printVar('$f_HTTP_REFERER',$f_HTTP_REFERER);
#printVar('$args',$args);
if ( count($args) ) {
// Strip of extra duplicate urlQuery items.
foreach ( $args as $arg ) {
$arg = explode('=',$arg);
if ( $arg[0] != 'CalledBy' ) {
if ( !isset($arg[1]) ) $arg[1] = '';
$argAdd[$arg[0]] = $arg[1];
}
}
$urlQuery = '';
foreach ( $argAdd as $arg => $argValue ) {
$urlQuery .= $urlQueryChar.$arg.'='.$argValue;
$urlQueryChar = '&';
}
} else {
}
} else {
$urlQuery = '';
}
if ( !isset($argAdd['f_classId']) && isset($f_classId) ) {
$argAdd['f_classId'] = $f_classId;
$urlQuery .= $urlQueryChar.'f_classId='.$f_classId;
$urlQueryChar = '&';
}
if ( !isset($argAdd['Course']) && isset($courseNumber) ) {
$argAdd['Course'] = $courseNumber;
$urlQuery .= $urlQueryChar.'Course='.$courseNumber;
$urlQueryChar = '&';
}
#printVar('$f_userId',$f_userId);
if ( !isset($f_userId) ) $f_userId = formValue('userId');
#printVar('$f_userId',$f_userId);
if ( !isset($argAdd['f_userId']) && isset($f_userId) ) {
$argAdd['f_userId'] = $f_userId;
$urlQuery .= $urlQueryChar.'f_userId='.$f_userId;
$urlQueryChar = '&';
}
$f_ReturnFromGrading = formValue('ReturnFromGrading'); if ( !$f_ReturnFromGrading ) $f_ReturnFromGrading = 0;
if ( !isset($argAdd['f_ReturnFromGrading']) ) {
$argAdd['f_ReturnFromGrading'] = $f_ReturnFromGrading;
$urlQuery .= $urlQueryChar.'f_ReturnFromGrading='.$f_ReturnFromGrading;
$urlQueryChar = '&';
}
$urlQuery .= $urlQueryChar.'CalledBy='; $urlQueryChar = '&';
#printVar('$argAdd',$argAdd);
#printVar('$urlQuery',$urlQuery);
debugTrackEnd();
?>