341 lines
		
	
	
		
			7.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			341 lines
		
	
	
		
			7.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace splitbrain\PHPArchive;
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/**
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 * Class FileInfo
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 *
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 * stores meta data about a file in an Archive
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 *
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 * @author  Andreas Gohr <andi@splitbrain.org>
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 * @package splitbrain\PHPArchive
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 * @license MIT
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 */
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class FileInfo
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{
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    protected $isdir = false;
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    protected $path = '';
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    protected $size = 0;
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    protected $csize = 0;
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    protected $mtime = 0;
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    protected $mode = 0664;
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    protected $owner = '';
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    protected $group = '';
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    protected $uid = 0;
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    protected $gid = 0;
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    protected $comment = '';
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    /**
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     * initialize dynamic defaults
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     *
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     * @param string $path The path of the file, can also be set later through setPath()
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     */
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    public function __construct($path = '')
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    {
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        $this->mtime = time();
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        $this->setPath($path);
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    }
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    /**
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     * Factory to build FileInfo from existing file or directory
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     *
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     * @param string $path path to a file on the local file system
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     * @param string $as   optional path to use inside the archive
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     * @throws FileInfoException
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     * @return FileInfo
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     */
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    public static function fromPath($path, $as = '')
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    {
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        clearstatcache(false, $path);
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        if (!file_exists($path)) {
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            throw new FileInfoException("$path does not exist");
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        }
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        $stat = stat($path);
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        $file = new FileInfo();
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        $file->setPath($path);
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        $file->setIsdir(is_dir($path));
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        $file->setMode(fileperms($path));
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        $file->setOwner(fileowner($path));
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        $file->setGroup(filegroup($path));
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        $file->setSize(filesize($path));
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        $file->setUid($stat['uid']);
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        $file->setGid($stat['gid']);
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        $file->setMtime($stat['mtime']);
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        if ($as) {
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            $file->setPath($as);
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        }
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        return $file;
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    }
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    /**
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     * @return int the filesize. always 0 for directories
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     */
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    public function getSize()
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    {
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        if($this->isdir) return 0;
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        return $this->size;
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    }
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    /**
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     * @param int $size
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     */
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    public function setSize($size)
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    {
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        $this->size = $size;
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    }
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    /**
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     * @return int
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     */
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    public function getCompressedSize()
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    {
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        return $this->csize;
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    }
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    /**
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     * @param int $csize
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     */
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    public function setCompressedSize($csize)
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    {
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        $this->csize = $csize;
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    }
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    /**
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     * @return int
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     */
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    public function getMtime()
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    {
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        return $this->mtime;
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    }
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    /**
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     * @param int $mtime
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     */
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    public function setMtime($mtime)
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    {
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        $this->mtime = $mtime;
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    }
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    /**
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     * @return int
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     */
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    public function getGid()
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    {
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        return $this->gid;
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    }
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    /**
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     * @param int $gid
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     */
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    public function setGid($gid)
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    {
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        $this->gid = $gid;
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    }
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    /**
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     * @return int
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     */
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    public function getUid()
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    {
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        return $this->uid;
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    }
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    /**
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     * @param int $uid
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     */
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    public function setUid($uid)
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    {
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        $this->uid = $uid;
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    }
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    /**
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     * @return string
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     */
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    public function getComment()
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    {
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        return $this->comment;
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    }
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    /**
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     * @param string $comment
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     */
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    public function setComment($comment)
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    {
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        $this->comment = $comment;
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    }
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    /**
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     * @return string
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     */
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    public function getGroup()
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    {
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        return $this->group;
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    }
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    /**
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     * @param string $group
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     */
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    public function setGroup($group)
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    {
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        $this->group = $group;
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    }
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    /**
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     * @return boolean
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     */
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    public function getIsdir()
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    {
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        return $this->isdir;
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    }
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    /**
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     * @param boolean $isdir
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     */
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    public function setIsdir($isdir)
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    {
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        // default mode for directories
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        if ($isdir && $this->mode === 0664) {
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            $this->mode = 0775;
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        }
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        $this->isdir = $isdir;
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    }
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    /**
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     * @return int
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     */
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    public function getMode()
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    {
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        return $this->mode;
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    }
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    /**
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     * @param int $mode
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     */
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    public function setMode($mode)
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    {
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        $this->mode = $mode;
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    }
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    /**
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     * @return string
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     */
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    public function getOwner()
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    {
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        return $this->owner;
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    }
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    /**
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     * @param string $owner
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     */
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    public function setOwner($owner)
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    {
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        $this->owner = $owner;
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    }
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    /**
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     * @return string
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     */
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    public function getPath()
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    {
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        return $this->path;
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    }
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    /**
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     * @param string $path
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     */
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    public function setPath($path)
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    {
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        $this->path = $this->cleanPath($path);
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    }
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    /**
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     * Cleans up a path and removes relative parts, also strips leading slashes
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     *
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     * @param string $path
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     * @return string
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     */
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    protected function cleanPath($path)
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    {
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        $path    = str_replace('\\', '/', $path);
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        $path    = explode('/', $path);
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        $newpath = array();
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        foreach ($path as $p) {
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            if ($p === '' || $p === '.') {
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                continue;
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            }
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            if ($p === '..') {
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                array_pop($newpath);
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                continue;
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            }
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            array_push($newpath, $p);
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        }
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        return trim(implode('/', $newpath), '/');
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    }
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    /**
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     * Strip given prefix or number of path segments from the filename
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     *
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     * The $strip parameter allows you to strip a certain number of path components from the filenames
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     * found in the tar file, similar to the --strip-components feature of GNU tar. This is triggered when
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     * an integer is passed as $strip.
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     * Alternatively a fixed string prefix may be passed in $strip. If the filename matches this prefix,
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     * the prefix will be stripped. It is recommended to give prefixes with a trailing slash.
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     *
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     * @param  int|string $strip
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     */
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    public function strip($strip)
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    {
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        $filename = $this->getPath();
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        $striplen = strlen($strip);
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        if (is_int($strip)) {
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            // if $strip is an integer we strip this many path components
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            $parts = explode('/', $filename);
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            if (!$this->getIsdir()) {
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                $base = array_pop($parts); // keep filename itself
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            } else {
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                $base = '';
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            }
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            $filename = join('/', array_slice($parts, $strip));
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            if ($base) {
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                $filename .= "/$base";
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            }
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        } else {
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            // if strip is a string, we strip a prefix here
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            if (substr($filename, 0, $striplen) == $strip) {
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                $filename = substr($filename, $striplen);
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            }
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        }
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        $this->setPath($filename);
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    }
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    /**
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     * Does the file match the given include and exclude expressions?
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     *
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     * Exclude rules take precedence over include rules
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     *
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     * @param string $include Regular expression of files to include
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     * @param string $exclude Regular expression of files to exclude
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     * @return bool
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     */
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    public function match($include = '', $exclude = '')
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    {
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        $extract = true;
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        if ($include && !preg_match($include, $this->getPath())) {
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            $extract = false;
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        }
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        if ($exclude && preg_match($exclude, $this->getPath())) {
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            $extract = false;
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        }
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        return $extract;
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    }
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}
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