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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Add a directory to the public name of all the files of a reader
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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: ChangeName.php,v 1.20 2005/08/29 15:14:08 vincentlascaux Exp $
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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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/**
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* Base class for readers that need to modify the name of files
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*/
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class File_Archive_Reader_ChangeName extends File_Archive_Reader_Relay
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{
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/**
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* Modify the name
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*
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* @param string $name Name as in the inner reader
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* @return string New name as shown by this reader or false is the
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* file or directory has to be skipped
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*/
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function modifyName($name)
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{
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}
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/**
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* Modify the name back to the inner reader naming style
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* If implemented, unmodifyName(modifyName($name)) should be true
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*
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* unmodifyName can be left unimplemented, this may only impact the
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* efficiency of the select function (a full look up will be done when
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* something more efficient with an index for example could be used on
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* the inner reader of the original name is known).
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*
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* unmodifyName may be provided some names that where not in the inner reader
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* and that cannot possibly be the result of modifyName. In this case
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* unmodifyName must return false.
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*
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* @param string $name Name as shown by this reader
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* @return string Name as in the inner reader, or false if there is no
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* input such that modifyName would return $name or a file in
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* a directory called $name
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*/
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function unmodifyName($name)
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{
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return null;
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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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return $this->getStandardURL($this->modifyName(parent::getFilename()));
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}
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/**
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* @see File_Archive_Reader::getFileList()
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*/
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function getFileList()
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{
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$list = parent::getFileList();
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$result = array();
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foreach ($list as $name) {
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$result[] = $this->modifyName($name);
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}
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return $result;
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}
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/**
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* @see File_Archive_Reader::select()
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*/
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function select($filename, $close = true)
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{
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$name = $this->unmodifyName($filename);
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if ($name === false) {
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return false;
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} else if($name === null) {
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$std = $this->getStandardURL($filename);
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if (substr($std, -1)=='/') {
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$std = substr($std, 0, -1);
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}
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if ($close) {
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$error = $this->close();
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if (PEAR::isError($error)) {
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return $error;
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}
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}
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while (($error = $this->next()) === true) {
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$sourceName = $this->getFilename();
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$sourceName = $this->modifyName($sourceName, $this->isDirectory());
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$sourceName = $this->getStandardURL($sourceName);
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if (
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empty($std) ||
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//$std is a file
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$std == $sourceName ||
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//$std is a directory
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(strncmp($std.'/', $sourceName, strlen($std)+1) == 0 &&
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strlen($sourceName) > strlen($std)+1)
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) {
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return true;
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}
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}
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return $error;
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} else {
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return $this->source->select($name, $close);
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}
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}
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}
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?>
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