<?php
/*
  PROJECT:    ReactOS Website
  LICENSE:    GNU GPLv2 or any later version as published by the Free Software Foundation
  PURPOSE:    Easily download prebuilt ReactOS Revisions
  COPYRIGHT:  Copyright 2007-2008 Colin Finck <mail@colinfinck.de>
*/
  
    // This "ajax-getfiles.php" script has to be uploaded to the server, which contains the ISO files.
    // Therefore it has an own configuration and doesn't use "config.inc.php".

    // Configuration
    $ROOT_DIR = "../";
    $MAX_FILES_PER_PAGE = 100;            // The same value has to be set in "config.inc.php"
    $REV_RANGE_LIMIT = 3000;

    // Functions
    function fsize_str($size)
    {
        if($size > 1000000)
        {
            $size = $size / 1048576;
            $unit = " MB";
        }
        else if($size > 1000)
        {
            $size = $size / 1024;
            $unit = " KB";
        }
        else
        {
            $unit = " Bytes";
        }
        
        return number_format($size, 2, ".", ",") . $unit;
    }
    
    
    // Entry point
    header("Content-type: text/xml");
    
    if(!isset($_GET["startrev"]))
        die("<error><message>Necessary information not specified!</message></error>");
    
    if($_GET["endrev"] - $_GET["startrev"] > $REV_RANGE_LIMIT)
        die("<error><message>LIMIT</message><limit>$REV_RANGE_LIMIT</limit></error>");
    
    if($_GET["filelist"])
        $get_filelist = true;
    
    $directories = array("bootcd", "livecd");
    $file_patterns = array();
    
    if($_GET["bootcd-dbg"])
        $file_patterns[] = "#bootcd-[0-9]+-dbg#";
    if($_GET["livecd-dbg"])
        $file_patterns[] = "#livecd-[0-9]+-dbg#";
    if($_GET["bootcd-rel"])
        $file_patterns[] = "#bootcd-[0-9]+-rel#";
    if($_GET["livecd-rel"])
        $file_patterns[] = "#livecd-[0-9]+-rel#";
    
    $exitloop = false;
    $filecount = 0;
    $firstrev = 0;
    $lastrev = 0;
    $morefiles = 0;
    
    foreach($directories as $d)
    {
        $dir = opendir($ROOT_DIR . $d) or die("<error><message>opendir failed!</message></error>");
    
        while($fname = readdir($dir))
            if(preg_match("#-([0-9]+)-#", $fname, $matches))
                $fnames[ $matches[1] ][] = $fname;
        
        closedir($dir);
    }
    
    echo "<fileinformation>";
    
    for($i = $_GET["startrev"]; $i <= $_GET["endrev"]; $i++)
    {
        if(isset($fnames[$i]))
        {
            sort($fnames[$i]);
            
            foreach($fnames[$i] as $fname)
            {
                // Is it an allowed CD Image type?
                foreach($file_patterns as $p)
                {
                    if(preg_match($p, $fname))
                    {
                        // This is a file we are looking for
                        if($get_filelist)
                        {
                            $dir = substr($fname, 0, 6);
                            
                            echo "<file>";
                            printf("<name>%s</name>", $fname);
                            printf("<size>%s</size>", fsize_str(filesize("$ROOT_DIR/$dir/$fname")));
                            printf("<date>%s</date>", date("Y-m-d H:i", filemtime("$ROOT_DIR/$dir/$fname")));
                            echo "</file>";
                        }
                    
                        if($i < $firstrev || $firstrev == 0)
                            $firstrev = $i;
                
                        if($i > $lastrev)
                            $lastrev = $i;
                        
                        $filecount++;
                        break;
                    }
                }
                
                if($filecount == $MAX_FILES_PER_PAGE)
                {
                    $morefiles = 1;
                    $exitloop = true;
                    break;
                }
            }
        }
        
        if($exitloop)
            break;
    }
    
    printf("<filecount>%d</filecount>", $filecount);
    printf("<firstrev>%d</firstrev>", $firstrev);
    printf("<lastrev>%d</lastrev>", $lastrev);
    printf("<morefiles>%d</morefiles>", $morefiles);
    
    echo "</fileinformation>";
?>