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<?php

/*************************************************************

*  TorrentFlux - PHP Torrent Manager

*  www.torrentflux.com

**************************************************************/

/*

    This file is part of TorrentFlux.

    TorrentFlux 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.

    TorrentFlux 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.

    You should have received a copy of the GNU General Public License

    along with TorrentFlux; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

class dir

{

    var $name;

    var $subdirs;

    var $files;

    var $num;

    var $prio;

    function dir($name,$num,$prio)

    {

        $this->name = $name;

        $this->num = $num;

        $this->prio = $prio;

        $this->files = array();

        $this->subdirs = array();

    }

    function &addFile($file)

    {

        $this->files[] =& $file;

        return $file;

    }

    function &addDir($dir)

    {

        $this->subdirs[] =& $dir;

        return $dir;

    }

    // code changed to support php4

    // thx to Mistar Muffin

    function &findDir($name)

    {

        foreach (array_keys($this->subdirs) as $v)

        {

            $dir =& $this->subdirs[$v];

            if($dir->name == $name)

            {

                return $dir;

            }

        }

        return false;

    }

    function draw($parent)

    {

        echo("d.add(".$this->num.",".$parent.",\"".$this->name."\",".$this->prio.",0);\n");

        foreach($this->subdirs as $v)

        {

            $v->draw($this->num);

        }

        foreach($this->files as $v)

        {

            if(is_object($v))

            {

              echo("d.add(".$v->num.",".$this->num.",\"".$v->name."\",".$v->prio.",".$v->size.");\n");

            }

        }

    }

}

class file {

    var $name;

    var $prio;

    var $size;

    var $num;

    function file($name,$num,$size,$prio)

    {

        $this->name = $name;

        $this->num  = $num;

        $this->size = $size;

        $this->prio = $prio;

    }

}

function showMetaInfo($torrent, $allowSave=false)

{

    global $cfg;

    if (empty($torrent))

    {

        echo _NORECORDSFOUND;

    }

    elseif ($cfg["enable_file_priority"])

    {

        $prioFileName = $cfg["torrent_file_path"].getAliasName($torrent).".prio";

        require_once('BDecode.php');

        echo '<link rel="StyleSheet" href="dtree.css" type="text/css" /><script type="text/javascript" src="dtree.js"></script>';

        $ftorrent=$cfg["torrent_file_path"].$torrent;

        $fp = fopen($ftorrent, "rd");

        $alltorrent = fread($fp, filesize($ftorrent));

        fclose($fp);

        $btmeta = BDecode($alltorrent);

        $torrent_size = $btmeta["info"]["piece length"] * (strlen($btmeta["info"]["pieces"]) / 20);

        if (array_key_exists('files',$btmeta['info']))

        {

            $dirnum = count($btmeta['info']['files']);

        }

        else

        {

            $dirnum = 0;

        }

        if ( is_readable($prioFileName))

        {

            $prio = split(',',file_get_contents($prioFileName));

            $prio = array_splice($prio,1);

        }

        else

        {

            $prio = array();

            for($i=0;$i<$dirnum;$i++)

            {

                $prio[$i] = -1;

            }

        }

        $tree = new dir("/",$dirnum,isset($prio[$dirnum])?$prio[$dirnum]:-1);

        if (array_key_exists('files',$btmeta['info']))

        {

            foreach( $btmeta['info']['files'] as $filenum => $file)

            {

                $depth = count($file['path']);

                $branch =& $tree;

                for($i=0; $i < $depth; $i++)

                {

                    if ($i != $depth-1)

                    {

                        $d =& $branch->findDir($file['path'][$i]);

                        if($d)

                        {

                            $branch =& $d;

                        }

                        else

                        {

                            $dirnum++;

                            $d =& $branch->addDir(new dir($file['path'][$i], $dirnum, (isset($prio[$dirnum])?$prio[$dirnum]:-1)));

                            $branch =& $d;

                        }

                    }

                    else

                    {

                        $branch->addFile(new file($file['path'][$i]." (".$file['length'].")",$filenum,$file['length'],$prio[$filenum]));

                    }

                }

            }

        }

        echo "<table><tr>";

        echo "<tr><td width=\"110\">Metainfo File:</td><td>".$torrent."</td></tr>";

        echo "<tr><td>Directory Name:</td><td>".$btmeta['info']['name']."</td></tr>";

        echo "<tr><td>Announce URL:</td><td>".$btmeta['announce']."</td></tr>";

        if(array_key_exists('comment',$btmeta))

        {

            echo "<tr><td valign=\"top\">Comment:</td><td>".$btmeta['comment']."</td></tr>";

        }

        echo "<tr><td>Created:</td><td>".date("F j, Y, g:i a",$btmeta['creation date'])."</td></tr>";

        echo "<tr><td>Torrent Size:</td><td>".$torrent_size." (".formatBytesToKBMGGB($torrent_size).")</td></tr>";

        echo "<tr><td>Chunk size:</td><td>".$btmeta['info']['piece length']." (".formatBytesToKBMGGB($btmeta['info']['piece length']).")</td></tr>";

        if (array_key_exists('files',$btmeta['info']))

        {

            echo "<tr><td>Selected size:</td><td id=\"sel\">0</td></tr>";

            echo "</table><br>\n";

            if ($allowSave)

            {

                echo "<form name=\"priority\" action=\"index.php\" method=\"POST\" >";

                echo "<input type=\"hidden\" name=\"torrent\" value=\"".$torrent."\" >";

                echo "<input type=\"hidden\" name=\"setPriorityOnly\" value=\"true\" >";

            }

            echo "<script type=\"text/javascript\">\n";

            echo "var sel = 0;\n";

            echo "d = new dTree('d');\n";

            $tree->draw(-1);

            echo "document.write(d);\n";

            echo "sel = getSizes();\n";

            echo "drawSel();\n";

            echo "</script>\n";

            echo "<input type=\"hidden\" name=\"filecount\" value=\"".count($btmeta['info']['files'])."\">";

            echo "<input type=\"hidden\" name=\"count\" value=\"".$dirnum."\">";

            echo "<br>";

            if ($allowSave)

            {

                echo '<input type="submit" value="Save" >';

                echo "<br>";

            }

            echo "</form>";

        }

        else

        {

            echo "</table><br>";

            echo $btmeta['info']['name'].$torrent_size." (".formatBytesToKBMGGB($torrent_size).")";

        }

    }

    else

    {

        $result = shell_exec("cd " . $cfg["torrent_file_path"]."; " . $cfg["pythonCmd"] . " -OO " . $cfg["btshowmetainfo"]." \"".$torrent."\"");

        echo "<pre>";

        echo $result;

        echo "</pre>";

    }

}

?>