+// Determines referal id and sets it
+function DETERMINE_REFID () {
+ global $_CONFIG, $CLICK, $_SERVER;
+
+ // Check if refid is set
+ if ((!empty($_GET['user'])) && ($CLICK == 1) && (basename($_SERVER['PHP_SELF']) == "click.php")) {
+ // The variable user comes from the click-counter script click.php and we only accept this here
+ $GLOBALS['refid'] = bigintval($_GET['user']);
+ } elseif (!empty($_POST['refid'])) {
+ // Get referal id from variable refid (so I hope this makes my script more compatible to other scripts)
+ $GLOBALS['refid'] = SQL_ESCAPE(strip_tags($_POST['refid']));
+ } elseif (!empty($_GET['refid'])) {
+ // Get referal id from variable refid (so I hope this makes my script more compatible to other scripts)
+ $GLOBALS['refid'] = SQL_ESCAPE(strip_tags($_GET['refid']));
+ } elseif (!empty($_GET['ref'])) {
+ // Set refid=ref (the referal link uses such variable)
+ $GLOBALS['refid'] = SQL_ESCAPE(strip_tags($_GET['ref']));
+ } elseif ((isSessionVariableSet('refid')) && (get_session('refid') != 0)) {
+ // Set session refid als global
+ $GLOBALS['refid'] = bigintval(get_session('refid'));
+ } elseif ((GET_EXT_VERSION("sql_patches") != "") && (getConfig('def_refid') > 0)) {
+ // Set default refid as refid in URL
+ $GLOBALS['refid'] = bigintval(getConfig('def_refid'));
+ } elseif ((GET_EXT_VERSION("user") >= "0.3.4") && (getConfig('select_user_zero_refid')) == "Y") {
+ // Select a random user which has confirmed enougth mails
+ $GLOBALS['refid'] = SELECT_RANDOM_REFID();
+ } else {
+ // No default ID when sql_patches is not installed or none set
+ $GLOBALS['refid'] = 0;
+ }
+
+ // Set cookie when default refid > 0
+ if (!isSessionVariableSet('refid') || (!empty($GLOBALS['refid'])) || ((get_session('refid') == "0") && (getConfig('def_refid') > 0))) {
+ // Set cookie
+ set_session('refid', $GLOBALS['refid']);
+ } // END - if
+
+ // Return determined refid
+ return $GLOBALS['refid'];
+}
+
+// Destroys the admin session
+function DESTROY_ADMIN_SESSION ($destroy = true) {
+ // Kill maybe existing session variables including array elements
+ set_session('admin_login', "");
+ set_session('admin_md5' , "");
+ set_session('admin_last' , "");
+ set_session('admin_to' , "");
+
+ // Destroy session and return status
+ if ($destroy) {
+ return @session_destroy();
+ } // END - if
+
+ // All fine if we shall not really destroy the session
+ return true;
+}
+
+// Checks if a given apache module is loaded
+function IF_APACHE_MODULE_LOADED ($apacheModule) {
+ // Check it and return result
+ return (((function_exists('apache_get_modules')) && (in_array($apacheModule, apache_get_modules()))) || (!function_exists('apache_get_modules')));
+}
+
+// Getter for $_CONFIG entries
+function getConfig ($entry) {
+ global $_CONFIG;
+
+ // Default value
+ $value = null;
+
+ // Is the entry there?
+ if (isset($_CONFIG[$entry])) {
+ // Then use it
+ $value = $_CONFIG[$entry];
+ } // END - if
+
+ // Return it
+ return $value;
+}
+
+// @TODO Rewrite all language constants to the function getLanguage().
+// "Getter" for language strings
+function getMessage ($messageId) {
+ // Default is not found!
+ $return = "!".$messageId."!";
+
+ // Is the language string found?
+ if (isset($GLOBALS['msg'][$messageId])) {
+ // Language array element found
+ $return = $GLOBALS['msg'][$messageId];
+ } elseif (defined($messageId)) {
+ // @DEPRECATED Deprecated constant found
+ $return = constant($messageId);
+ } else {
+ // Missing language constant
+ DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Missing message string %s detected.", $messageId));
+ }
+
+ // Return the string
+ return $return;
+}