# FileArchive.class.php

Go to the documentation of this file.

    00001 <?php
    00002 /***************************************************************************
    00003  *   Copyright (C) 2007 by Ivan Y. Khvostishkov                            *
    00004  *                                                                         *
    00005  *   This program is free software; you can redistribute it and/or modify  *
    00006  *   it under the terms of the GNU Lesser General Public License as        *
    00007  *   published by the Free Software Foundation; either version 3 of the    *
    00008  *   License, or (at your option) any later version.                       *
    00009  *                                                                         *
    00010  ***************************************************************************/
    00011
    00015     abstract class FileArchive
    00016     {
    00017         protected $cmdBinPath   = null;
    00018         protected $sourceFile   = null;
    00019
    00020         abstract public function readFile($fileName);
    00021
    00022         public function __construct($cmdBinPath = null)
    00023         {
    00024             if ($cmdBinPath !== null) {
    00025                 if (!is_executable($cmdBinPath))
    00026                     throw new WrongStateException(
    00027                         'cannot find executable '.$cmdBinPath
    00028                     );
    00029
    00030                 $this->cmdBinPath = $cmdBinPath;
    00031             }
    00032         }
    00033
    00037         public function open($sourceFile)
    00038         {
    00039             if (!is_readable($sourceFile))
    00040                 throw new WrongStateException(
    00041                     'cannot open file '.$sourceFile
    00042                 );
    00043
    00044             $this->sourceFile = $sourceFile;
    00045
    00046             return $this;
    00047         }
    00048
    00049         protected function execStdoutOptions($options)
    00050         {
    00051             if (!$this->cmdBinPath)
    00052                 throw new WrongStateException(
    00053                     'nothing to exec'
    00054                 );
    00055
    00056             $cmd = escapeshellcmd($this->cmdBinPath.' '.$options);
    00057
    00058             ob_start();
    00059
    00060             $exitStatus = null;
    00061
    00062             passthru($cmd.' 2>/dev/null', $exitStatus);
    00063
    00064             $output = ob_get_clean();
    00065
    00066             if ($exitStatus != 0)
    00067                 throw new ArchiverException(
    00068                     $this->cmdBinPath.' failed with error code = '.$exitStatus
    00069                 );
    00070
    00071             return $output;
    00072         }
    00073     }
    00074 ?>