310 Zeilen
8.2 KiB
PHP
310 Zeilen
8.2 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Recursively reads a directory
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*
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* PHP versions 4 and 5
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
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*
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* @category File Formats
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* @package File_Archive
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* @author Vincent Lascaux <vincentlascaux@php.net>
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* @copyright 1997-2005 The PHP Group
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version CVS: $Id: Directory.php 2 2010-11-23 14:32:26Z oldperl $
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* @link http://pear.php.net/package/File_Archive
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*/
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require_once "File/Archive/Reader/Relay.php";
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require_once "File/Archive/Reader/File.php";
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/**
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* Recursively reads a directory
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*/
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class File_Archive_Reader_Directory extends File_Archive_Reader_Relay
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{
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/**
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* @var String URL of the directory that must be read
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* @access private
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*/
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var $directory;
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/**
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* @var Int The subdirectories will be read up to a depth of maxRecurs
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* If maxRecurs == 0, the subdirectories will not be read
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* If maxRecurs == -1, the depth is considered infinite
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* @access private
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*/
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var $maxRecurs;
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/**
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* @var Object Handle returned by the openedDirectory function
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* @access private
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*/
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var $directoryHandle = null;
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/**
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* $directory is the path of the directory that must be read
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* If $maxRecurs is specified, the subdirectories will be read up to a depth
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* of $maxRecurs. In particular, if $maxRecurs == 0, the subdirectories
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* won't be read.
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*/
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function File_Archive_Reader_Directory($directory, $symbolic='',
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$maxRecurs=-1)
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{
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parent::File_Archive_Reader_Relay($tmp = null);
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$this->directory = empty($directory) ? '.' : $directory;
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$this->symbolic = $this->getStandardURL($symbolic);
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$this->maxRecurs = $maxRecurs;
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}
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/**
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* @see File_Archive_Reader::close()
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*/
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function close()
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{
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$error = parent::close();
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if ($this->directoryHandle !== null) {
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closedir($this->directoryHandle);
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$this->directoryHandle = null;
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}
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return $error;
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}
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/**
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* @see File_Archive_Reader::next()
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*
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* The files are returned in the same order as readdir
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*/
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function next()
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{
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if ($this->directoryHandle === null) {
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$this->directoryHandle = opendir($this->directory);
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if (!is_resource($this->directoryHandle)) {
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return PEAR::raiseError(
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"Directory {$this->directory} not found"
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);
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}
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$this->source = null;
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if (!empty($this->symbolic))
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return true;
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}
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while ($this->source === null ||
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($error = $this->source->next()) !== true) {
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if ($this->source !== null) {
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$this->source->close();
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}
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$file = readdir($this->directoryHandle);
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if ($file == '.' || $file == '..') {
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continue;
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}
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if ($file === false) {
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return false;
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}
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$current = $this->directory.'/'.$file;
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if (is_dir($current)) {
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if ($this->maxRecurs != 0) {
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$this->source = new File_Archive_Reader_Directory(
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$current, $file.'/', $this->maxRecurs-1
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);
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}
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} else {
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$this->source = new File_Archive_Reader_File($current, $file);
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}
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}
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return $error;
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}
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/**
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* @see File_Archive_Reader::getFilename()
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*/
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function getFilename()
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{
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if ($this->source === null) {
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return $this->symbolic;
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} else {
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return $this->symbolic . parent::getFilename();
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}
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}
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/**
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* @see File_Archive_Reader::getStat()
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*/
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function getStat()
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{
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if ($this->source === null) {
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return stat($this->directory);
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} else {
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return parent::getStat();
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}
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}
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/**
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* @see File_Archive_Reader::getMime()
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*/
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function getMime()
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{
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if ($this->source === null) {
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return '';
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} else {
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return parent::getMime();
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}
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}
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/**
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* @see File_Archive_Reader::getDataFilename()
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*/
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function getDataFilename()
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{
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if ($this->source === null) {
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return null;
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} else {
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return parent::getDataFilename();
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}
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}
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/**
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* @see File_Archive_Reader::getData()
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*/
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function getData($length = -1)
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{
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if ($this->source === null) {
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return null;
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} else {
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return parent::getData($length);
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}
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}
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/**
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* @see File_Archive_Reader::skip()
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*/
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function skip($length = -1)
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{
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if ($this->source === null) {
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return 0;
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} else {
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return parent::skip($length);
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}
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}
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/**
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* @see File_Archive_Reader::rewind()
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*/
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function rewind($length = -1)
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{
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if ($this->source === null) {
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return 0;
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} else {
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return parent::rewind($length);
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}
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}
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/**
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* @see File_Archive_Reader::tell()
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*/
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function tell()
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{
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if ($this->source === null) {
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return 0;
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} else {
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return parent::tell();
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}
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}
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/**
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* @see File_Archive_Reader::makeWriterRemoveFiles()
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*/
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function makeWriterRemoveFiles($pred)
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{
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if ($source !== null && $pred->isTrue($this)) {
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$toUnlink = $this->getDataFilename();
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} else {
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$toUnlink = null;
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}
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while ($this->next()) {
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if ($toUnlink !== null &&
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!@unlink($toUnlink)) {
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return PEAR::raiseError("Unable to unlink $toUnlink");
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}
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$toUnlink = ($pred->isTrue($this) ? $this->getDataFilename() : null);
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}
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if ($toUnlink !== null &&
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!@unlink("Unable to unlink $toUnlink")) {
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return PEAR::raiseError($pred);
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}
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require_once "File/Archive/Writer/Files.php";
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$writer = new File_Archive_Writer_Files($this->directory);
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$this->close();
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return $writer;
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}
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function &getLastSource()
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{
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if ($this->source === null ||
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is_a($this->source, 'File_Archive_Reader_File')) {
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return $this->source;
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} else {
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return $this->source->getLastSource();
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}
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}
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/**
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* @see File_Archive_Reader::makeWriterRemoveBlocks()
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*/
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function makeWriterRemoveBlocks($blocks, $seek = 0)
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{
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$lastSource = &$this->getLastSource();
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if ($lastSource === null) {
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return PEAR::raiseError('No file selected');
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}
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require_once "File/Archive/Writer/Files.php";
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$writer = $lastSource->makeWriterRemoveBlocks($blocks, $seek);
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if (!PEAR::isError($writer)) {
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$writer->basePath = $this->directory;
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$this->close();
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}
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return $writer;
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}
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/**
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* @see File_Archive_Reader::makeAppendWriter
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*/
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function makeAppendWriter()
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{
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require_once "File/Archive/Writer/Files.php";
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if ($this->source === null ||
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is_a($this->source, 'File_Archive_Reader_File') ) {
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$writer = new File_Archive_Writer_Files($this->directory);
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} else {
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$writer = $this->source->makeAppendWriter($seek);
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}
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$this->close();
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return $writer;
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}
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}
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?>
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