130 lines
3.8 KiB
Plaintext
130 lines
3.8 KiB
Plaintext
<?php
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/*
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2007 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* A helper class for the ArchiveUpload module
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* @package ArchiveUpload
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* @subpackage Classes
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* @author Alan Harder <alan.harder@sun.com>
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* @version $Revision: 15513 $
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* @static
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*/
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class ArchiveUploadHelper {
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/**
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* Test if the given path has a working unzip binary.
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*
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* This is done by calling the binary with the -v flag and
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* making sure it runs properly.
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*
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* @param string $unzipPath path to the unzip we are testing
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* @return array boolean test successful?
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* string error type or null
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* string unzip output
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*/
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function testBinary($unzipPath) {
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global $gallery;
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$platform =& $gallery->getPlatform();
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/*
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* If the path is not restricted by open_basedir, then verify that it's legal.
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* Else just hope that it's valid and use it.
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*/
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if (!$platform->isRestrictedByOpenBaseDir($unzipPath)) {
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if (!$platform->file_exists($unzipPath) || !$platform->is_file($unzipPath)) {
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return array(false, 'badPath', null);
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}
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if (!$platform->is_executable($unzipPath)) {
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return array(false, 'notExecutable', null);
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}
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}
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list ($success, $results, $error) = $platform->exec(array(
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array($unzipPath, '-v', dirname(dirname(__FILE__)) . '/data/test.zip')));
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$valid = false;
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foreach ($results as $resultLine) {
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if (strpos($resultLine, 'test.txt') !== false) {
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$valid = true;
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break;
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}
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}
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return array($valid, ($valid ? null : 'exec'),
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implode("\n", $error) . (empty($error) ? '' : "\n") . implode("\n", $results));
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}
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/**
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* Try to find a valid unzip binary.
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* @return string valid path or null
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*/
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function findUnzipBinary() {
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global $gallery;
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$platform =& $gallery->getPlatform();
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$slash = $platform->getDirectorySeparator();
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$validPath = null;
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/*
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* Try some likely seeming paths to see if any of them work. Start with system paths.
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* Tack on a trailing slash if necessary, then tack on other likely paths, based on our OS.
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*/
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$paths = array();
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if (GalleryUtilities::isA($platform, 'WinNtPlatform')) {
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foreach (explode(';', getenv('PATH')) as $path) {
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$path = trim($path);
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if (empty($path)) {
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continue;
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}
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if ($path{strlen($path)-1} != $slash) {
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$path .= $slash;
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}
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$paths[] = $path . 'unzip.exe';
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}
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$paths[] = 'C:\unzip\unzip.exe';
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$paths[] = 'C:\\cygwin\\bin\\zip.exe';
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} else if (GalleryUtilities::isA($platform, 'UnixPlatform')) {
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foreach (explode(':', getenv('PATH')) as $path) {
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$path = trim($path);
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if (empty($path)) {
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continue;
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}
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if ($path{strlen($path)-1} != $slash) {
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$path .= $slash;
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}
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$paths[] = $path . 'unzip';
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}
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$paths[] = '/usr/bin/unzip';
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$paths[] = '/usr/local/bin/unzip';
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$paths[] = '/bin/unzip';
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}
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/* Now try each path in turn to see which ones work */
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foreach ($paths as $path) {
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list ($valid) = ArchiveUploadHelper::testBinary($path);
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if ($valid) {
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$validPath = $path;
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break;
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}
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}
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return $validPath;
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}
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}
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?>
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