Index: branches/5.2.x/core/kernel/globals.php
===================================================================
diff -u -N -r14609 -r14619
--- branches/5.2.x/core/kernel/globals.php	(.../globals.php)	(revision 14609)
+++ branches/5.2.x/core/kernel/globals.php	(.../globals.php)	(revision 14619)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: globals.php 14609 2011-10-03 13:05:08Z alex $
+* @version	$Id: globals.php 14619 2011-10-04 08:39:18Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -581,6 +581,65 @@
 
 		return false;
 	}
+
+	/**
+	 * Returns mime type corresponding to given file
+	 * @param string $file
+	 * @return string
+	 * @access public
+	 */
+	public static function mimeContentType($file)
+	{
+		$ret = '';
+
+		if ( function_exists('finfo_open') && function_exists('finfo_file') ) {
+			$mime_magic_resource = finfo_open(FILEINFO_MIME_TYPE);
+
+			if ( $mime_magic_resource ) {
+				$ret = finfo_file($mime_magic_resource, $file);
+				finfo_close($mime_magic_resource);
+			}
+		}
+		elseif ( function_exists('mime_content_type') ) {
+			$ret = mime_content_type($file);
+		}
+
+	    return $ret ? $ret : self::mimeContentTypeByExtension($file);
+ 	}
+
+	/**
+	 * Detects mime type of the file purely based on it's extension
+	 *
+	 * @param string $file
+	 * @return string
+	 * @access public
+	 */
+	public static function mimeContentTypeByExtension($file)
+	{
+		$file_extension = mb_strtolower( pathinfo($file, PATHINFO_EXTENSION) );
+
+		$mapping = '(xls:application/excel)(hqx:application/macbinhex40)(doc,dot,wrd:application/msword)(pdf:application/pdf)
+					(pgp:application/pgp)(ps,eps,ai:application/postscript)(ppt:application/powerpoint)(rtf:application/rtf)
+					(tgz,gtar:application/x-gtar)(gz:application/x-gzip)(php,php3:application/x-httpd-php)(js:application/x-javascript)
+					(ppd,psd:application/x-photoshop)(swf,swc,rf:application/x-shockwave-flash)(tar:application/x-tar)(zip:application/zip)
+					(mid,midi,kar:audio/midi)(mp2,mp3,mpga:audio/mpeg)(ra:audio/x-realaudio)(wav:audio/wav)(bmp:image/bitmap)(bmp:image/bitmap)
+					(gif:image/gif)(iff:image/iff)(jb2:image/jb2)(jpg,jpe,jpeg:image/jpeg)(jpx:image/jpx)(png:image/png)(tif,tiff:image/tiff)
+					(wbmp:image/vnd.wap.wbmp)(xbm:image/xbm)(css:text/css)(txt:text/plain)(htm,html:text/html)(xml:text/xml)
+					(mpg,mpe,mpeg:video/mpeg)(qt,mov:video/quicktime)(avi:video/x-ms-video)(eml:message/rfc822)
+					(sxw:application/vnd.sun.xml.writer)(sxc:application/vnd.sun.xml.calc)(sxi:application/vnd.sun.xml.impress)
+					(sxd:application/vnd.sun.xml.draw)(sxm:application/vnd.sun.xml.math)
+					(odt:application/vnd.oasis.opendocument.text)(oth:application/vnd.oasis.opendocument.text-web)
+					(odm:application/vnd.oasis.opendocument.text-master)(odg:application/vnd.oasis.opendocument.graphics)
+					(odp:application/vnd.oasis.opendocument.presentation)(ods:application/vnd.oasis.opendocument.spreadsheet)
+					(odc:application/vnd.oasis.opendocument.chart)(odf:application/vnd.oasis.opendocument.formula)
+					(odi:application/vnd.oasis.opendocument.image)';
+
+		if ( preg_match('/[\(,]' . $file_extension . '[,]{0,1}.*?:(.*?)\)/s', $mapping, $regs) ) {
+			return $regs[1];
+		}
+
+		return 'application/octet-stream';
+	}
 }
 
 /**