Index: typo3/sysext/indexed_search/class.indexer.php
===================================================================
--- typo3/sysext/indexed_search/class.indexer.php	(revision 7383)
+++ typo3/sysext/indexed_search/class.indexer.php	(working copy)
@@ -788,8 +788,8 @@
 				$qParts = parse_url($linkSource);	// parse again due to new linkSource!
 			}
 
-			if ($qParts['scheme'])	{
-				if ($this->indexerConfig['indexExternalURLs'])	{
+			if (!$linkInfo['localPath'] && $qParts['scheme']) {
+				if ($this->indexerConfig['indexExternalURLs']) {
 						// Index external URL (http or otherwise)
 					$this->indexExternalUrl($linkSource);
 				}
@@ -859,18 +859,11 @@
 
 				switch (strtolower($firstTagName))	{
 					case 'a':
-						$src = $params[0]['href'];
-						if ($src)	{
-								// Check if a local path to that file has been set - useful if you are using a download script.
-							$md5 = t3lib_div::shortMD5($src);
-							if (is_array($indexLocalFiles=$GLOBALS['T3_VAR']['ext']['indexed_search']['indexLocalFiles']))	{
-								$localPath = isset($indexLocalFiles[$md5]) ? $indexLocalFiles[$md5] : '';
-							} else $localPath=false;
-
+						if ($params[0]['href'] && $params[0]['href']{0} != '#') {
 							$list[] = array(
 								'tag' => $v,
 								'href' => $params[0]['href'],
-								'localPath' => $localPath
+								'localPath' => $this->createLocalPath($params[0]['href'])
 							);
 						}
 					break;
@@ -985,16 +978,152 @@
 
 
 
+	/**
+	 * Checks if the file is local
+	 *
+	 * @param $sourcePath
+	 * @return string Absolute path to file if file is local, else empty string
+	 */
+	protected function createLocalPath($sourcePath) {
+		static $pathFunctions = array(
+			'createLocalPathFromT3vars',
+			'createLocalPathUsingAbsRefPrefix',
+			'createLocalPathUsingDomainURL',
+			'createLocalPathFromAbsoluteURL',
+			'createLocalPathFromRelativeURL'
+			);
+		foreach ($pathFunctions as $functionName) {
+			$localPath = $this->$functionName($sourcePath);
+			if ($localPath != '') {
+				break;
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Attempts to create a local file path from T3VARs. This is useful for
+	 * various download extensions that hide actual file name but still want the
+	 * file to be indexed.
+	 *
+	 * @param string $sourcePath
+	 * @return string
+	 */
+	protected function createLocalPathFromT3vars($sourcePath) {
+		$localPath = '';
+		$indexLocalFiles = $GLOBALS['T3_VAR']['ext']['indexed_search']['indexLocalFiles'];
+		if (is_array($indexLocalFiles)) {
+			$md5 = t3lib_div::shortMD5($sourcePath);
+			// Note: not using self::isAllowedLocalFile here because this method
+			// is allowed to index files outside of the web site (for example,
+			// protected downloads)
+			if (isset($indexLocalFiles[$md5]) && is_file(PATH_site . $indexLocalFiles[$md5])) {
+				$localPath = PATH_site . $indexLocalFiles[$md5];
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Attempts to create a local file path by matching a current request URL.
+	 *
+	 * @param string $sourcePath
+	 * @return string
+	 */
+	protected function createLocalPathUsingDomainURL($sourcePath) {
+		$baseURL = t3lib_div::getIndpEnv('TYPO3_SITE_URL');
+		$baseURLLength = strlen($baseURL);
+		if (substr($sourcePath, 0, $baseURLLength) == $baseURL) {
+			$sourcePath = substr($sourcePath, $baseURLLength);
+			$localPath = PATH_site . $sourcePath;
+			if (!self::isAllowedLocalFile($localPath)) {
+				$localPath = '';
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Attempts to create a local file path by matching absRefPrefix. This
+	 * requires TSFE. If TSFE is missing, this function does nothing.
+	 *
+	 * @param string $sourcePath
+	 * @return string
+	 */
+	protected function createLocalPathUsingAbsRefPrefix($sourcePath) {
+		$localPath = '';
+		if ($GLOBALS['TSFE'] instanceof tslib_fe) {
+			$absRefPrefix = $GLOBALS['TSFE']->config['config']['absRefPrefix'];
+			$absRefPrefixLength = strlen($absRefPrefix);
+			if ($absRefPrefixLength > 0 && substr($sourcePath, 0, $absRefPrefixLength) == $absRefPrefix) {
+				$sourcePath = substr($sourcePath, $absRefPrefixLength);
+				$localPath = PATH_site . $sourcePath;
+				if (!self::isAllowedLocalFile($localPath)) {
+					$localPath = '';
+				}
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Attempts to create a local file path from the absolute URL without
+	 * schema.
+	 *
+	 * @param string $sourcePath
+	 * @return string
+	 */
+	protected function createLocalPathFromAbsoluteURL($sourcePath) {
+		if ($sourcePath{0} == '/') {
+			$sourcePath = substr($sourcePath, 1);
+			$localPath = PATH_site . $sourcePath;
+			if (!self::isAllowedLocalFile($localPath)) {
+				$localPath = '';
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Attempts to create a local file path from the relative URL.
+	 *
+	 * @param string $sourcePath
+	 * @return string
+	 */
+	protected function createLocalPathFromRelativeURL($sourcePath) {
+		if (self::isRelativeURL($sourcePath)) {
+			$localPath = PATH_site . $sourcePath;
+			if (!self::isAllowedLocalFile($localPath)) {
+				$localPath = '';
+			}
+		}
+		return $localPath;
+	}
 
+	/**
+	 * Checks if URL is relative.
+	 *
+	 * @param string $url
+	 * @return boolean
+	 */
+	static protected function isRelativeURL($url) {
+		$urlParts = @parse_url($url);
+		return ($urlParts['scheme'] == '' && $urlParts['path']{0} != '/');
+	}
 
+	/**
+	 * Checks if the path points to the file inside the web site
+	 *
+	 * @param string $filePath
+	 * @return boolean
+	 */
+	static protected function isAllowedLocalFile($filePath) {
+		$filePath = t3lib_div::resolveBackPath($filePath);
+		$insideWebPath = (substr($filePath, 0, strlen(PATH_site)) == PATH_site);
+		$isFile = is_file($filePath);
+		return $insideWebPath && $isFile;
+	}
 
-
-
 	/******************************************
 	 *
 	 * Indexing; external files (PDF, DOC, etc)
Index: typo3/sysext/indexed_search/tests/tx_indexedsearch_indexer_testcase.php
===================================================================
--- typo3/sysext/indexed_search/tests/tx_indexedsearch_indexer_testcase.php	(revision 0)
+++ typo3/sysext/indexed_search/tests/tx_indexedsearch_indexer_testcase.php	(revision 0)
@@ -0,0 +1,159 @@
+<?php
+/***************************************************************
+*  Copyright notice
+*
+*  (c) 2010 Dmitry Dulepov (dmitry.dulepov@gmail.com)
+*  All rights reserved
+*
+*  This script is part of the Typo3 project. The Typo3 project is
+*  free software; you can redistribute it and/or modify
+*  it under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 2 of the License, or
+*  (at your option) any later version.
+*
+*  The GNU General Public License can be found at
+*  http://www.gnu.org/copyleft/gpl.html.
+*
+*  This script is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  This copyright notice MUST APPEAR in all copies of the script!
+***************************************************************/
+/**
+ * $Id$
+ *
+ */
+
+require_once(t3lib_extMgm::extPath('indexed_search', 'class.indexer.php'));
+
+/**
+  * This class contains unit tests for the indexer
+  *
+  * @author Dmitry Dulepov <dmitry.dulepov@gmail.com>
+  * @package TYPO3
+  * @subpackage tx_indexedsearch
+  */
+class tx_indexedsearch_indexer_testcase extends tx_phpunit_testcase {
+
+	/**
+	 * Indexer instance
+	 *
+	 * @var tx_indexedsearch_indexer
+	 */
+	protected $indexer;
+
+	/**
+	 * Sets up the test
+	 *
+	 * @return void
+	 */
+	public function setUp() {
+		$this->indexer = t3lib_div::makeInstance('tx_indexedsearch_indexer');
+	}
+
+	/**
+	 * Explicitly cleans up the indexer object to prevent any memory leaks
+	 *
+	 * @return void
+	 */
+	public function tearDown() {
+		unset($this->indexer);
+	}
+
+	/**
+	 * Checks that non-existing files are not returned
+	 *
+	 * @return void
+	 */
+	protected function testNonExistingLocalPath() {
+		$html = 'test <a href="' . md5(uniqid('')) . '">test</a> test';
+		$result = $this->indexer->extractHyperLinks($html);
+
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], '', 'Local path is incorrect');
+	}
+
+	/**
+	 * Checks that using t3vars returns correct file
+	 *
+	 * @return void
+	 */
+	protected function testLocalPathWithT3Vars() {
+		$file = 'index.php';
+		$html = 'test <a href="' . $file . '">test</a> test';
+		$savedValue = $GLOBALS['T3_VAR']['ext']['indexed_search']['indexLocalFiles'];
+		$GLOBALS['T3_VAR']['ext']['indexed_search']['indexLocalFiles'] = array(
+			md5($file) => PATH_site . 'index.php'
+		);
+		$result = $this->indexer->extractHyperLinks($html);
+		$GLOBALS['T3_VAR']['ext']['indexed_search']['indexLocalFiles'] = $savedValue;
+
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], PATH_site . 'index.php', 'Local path is incorrect');
+	}
+
+	/**
+	 * Tests that a path with baseURL
+	 *
+	 * @return void
+	 */
+	public function testLocalPathWithSiteURL() {
+		$baseURL = t3lib_div::getIndpEnv('TYPO3_SITE_URL');
+		$html = 'test <a href="' . $baseURL . 'index.php">test</a> test';
+		$result = $this->indexer->extractHyperLinks($html);
+
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], PATH_site . 'index.php', 'Local path is incorrect');
+	}
+
+	/**
+	 * Tests absolute path
+	 *
+	 * @return void
+	 */
+	public function testRelativeLocalPath() {
+		$html = 'test <a href="index.php">test</a> test';
+		$result = $this->indexer->extractHyperLinks($html);
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], PATH_site . 'index.php', 'Local path is incorrect');
+	}
+
+	/**
+	 * Tests absolute path.
+	 *
+	 * @return void
+	 */
+	public function testAbsoluteLocalPath() {
+		$path = substr(PATH_typo3, strlen(PATH_site) - 1);
+		$html = 'test <a href="' . $path . 'index.php">test</a> test';
+		$result = $this->indexer->extractHyperLinks($html);
+
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], PATH_typo3 . 'index.php', 'Local path is incorrect');
+	}
+
+	/**
+	 * Tests that a path with the absRefPrefix returns correct result
+	 *
+	 * @return void
+	 */
+	public function testLocalPathWithAbsRefPrefix() {
+		$absRefPrefix = '/' . md5(uniqid(''));
+		$html = 'test <a href="' . $absRefPrefix . 'index.php">test</a> test';
+		$savedPrefix = $GLOBALS['TSFE']->config['config']['absRefPrefix'];
+		$GLOBALS['TSFE']->config['config']['absRefPrefix'] = $absRefPrefix;
+		$result = $this->indexer->extractHyperLinks($html);
+		$GLOBALS['TSFE']->config['config']['absRefPrefix'] = $savedPrefix;
+
+		$this->assertEquals(1, count($result), 'Wrong number of parsed links');
+		$this->assertEquals($result[0]['localPath'], PATH_site . 'index.php', 'Local path is incorrect');
+	}
+}
+
+if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/indexed_search/tests/class.tx_indexedsearch_indexer_testcase.php'])	{
+	include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/indexed_search/tests/class.tx_indexedsearch_indexer_testcase.php']);
+}
+
+?>
\ No newline at end of file