WP-Filebase Range handling patch for 0.2.9.36

Index: classes/Download.php
===================================================================
--- classes/Download.php    (revision 706775)
+++ classes/Download.php    (working copy)
@@ -416,24 +416,24 @@
        wp_die(__('Could not read file!', WPFB));

    $begin = 0;
-   $end = $size;
+   $end = $size - 1;

    $http_range = isset($_SERVER['HTTP_RANGE']) ? $_SERVER['HTTP_RANGE'] : '';
    if(!empty($http_range) && strpos($http_range, 'bytes=') !== false && strpos($http_range, ',') === false) // multi-range not supported (yet)!
    {
        $range = explode('-', trim(substr($http_range, 6)));
        $begin = 0 + trim($range[0]);
-       if(!empty($range[1]))
+       if(is_numeric($range[1]))
            $end = 0 + trim($range[1]);
    } else
        $http_range = '';

-   if($begin > 0 || $end < $size)
+   if($begin > 0 || $end < ($size - 1))
        header('HTTP/1.0 206 Partial Content');
    else
        header('HTTP/1.0 200 OK');

-   $length = ($end-$begin);
+   $length = ($end - $begin + 1);
    WPFB_Download::AddTraffic($length);


@@ -447,7 +447,7 @@
    }
    header("Content-Length: " . $length);
    if(!empty($http_range))
-       header("Content-Range: bytes " . $begin . "-" . ($end-1) . "/" . $size);
+       header("Content-Range: bytes " . $begin . "-" . $end . "/" . $size);

    // clean up things that are not needed for download
    @session_write_close(); // disable blocking of multiple downloads at the same time
@@ -483,9 +483,9 @@

        $cur = $begin;

-       while(!@feof($fh) && $cur < $end && @connection_status() == 0)
+       while(!@feof($fh) && $cur <= $end && @connection_status() == 0)
        {
-           $nbytes = min($buffer_size, $end-$cur);
+           $nbytes = min($buffer_size, $end - $cur + 1);
            $ts = microtime(true);

            print @fread($fh, $nbytes);
@@ -534,4 +534,4 @@
    return array('error' => false, 'size' => $size);
 }

-}
\ No newline at end of file
+}