Index: branches/5.1.x/core/units/helpers/site_helper.php
===================================================================
diff -u -N -r13559 -r13874
--- branches/5.1.x/core/units/helpers/site_helper.php	(.../site_helper.php)	(revision 13559)
+++ branches/5.1.x/core/units/helpers/site_helper.php	(.../site_helper.php)	(revision 13874)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: site_helper.php 13559 2010-05-12 09:36:46Z alex $
+* @version	$Id: site_helper.php 13874 2010-08-28 20:39:56Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2010 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -55,4 +55,91 @@
 
 			return $cache[$iso_code];
 		}
+
+		/**
+		 * Gets site domains from cache
+		 *
+		 * @return Array
+		 */
+		function getSiteDomains()
+		{
+			static $cache = null;
+
+			if (!isset($cache)) {
+				if ($this->Application->isCachingType(CACHING_TYPE_MEMORY)) {
+					$cache = $this->Application->getCache('master:domains_parsed', false);
+				}
+				else {
+					$cache = $this->Application->getDBCache('domains_parsed');
+				}
+
+				if ($cache) {
+					$cache = unserialize($cache);
+				}
+				else {
+					$sql = 'SELECT *
+							FROM ' . TABLE_PREFIX . 'SiteDomains
+							ORDER BY Priority DESC';
+					$cache = $this->Conn->Query($sql, 'DomainId');
+
+					if ($this->Application->isCachingType(CACHING_TYPE_MEMORY)) {
+						$this->Application->setCache('master:domains_parsed', serialize($cache));
+					}
+					else {
+						$this->Application->setDBCache('domains_parsed', serialize($cache));
+					}
+				}
+			}
+
+			return $cache;
+		}
+
+		/**
+		 * Try to match visited domain to any of existing
+		 *
+		 * @param string $field
+		 * @param string $value
+		 * @return int
+		 */
+		function getDomainByName($field, $value)
+		{
+			$site_domains = $this->getSiteDomains();
+			$name_fields = Array ('DomainName', 'SSLUrl');
+
+			foreach ($site_domains as $id => $site_domain) {
+				if ( in_array($field, $name_fields) ) {
+					if (!$site_domain[$field . 'UsesRegExp']) {
+						// not regular expression -> escape manually
+						$site_domain[$field] = preg_quote($site_domain[$field], '/');
+					}
+
+					if (preg_match('/^' . $site_domain[$field] . ($field == 'DomainName' ? '$' : '') . '/', $value)) {
+						return $id;
+					}
+				}
+				elseif ($site_domain[$field] == $value) {
+					return $id;
+				}
+			}
+
+			return false;
+		}
+
+		/**
+		 * Try to match domain settings based on visitor's IP address
+		 *
+		 * @return int
+		 */
+		function getDomainByIP()
+		{
+			$site_domains = $this->getSiteDomains();
+
+			foreach ($site_domains as $id => $site_domain) {
+				if (ipMatch($site_domain['DomainIPRange'], "\n")) {
+					return $id;
+				}
+			}
+
+			return false;
+		}
 	}