<?php
/*
 * $RCSfile: CleanCacheStep.class,v $
 *
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2005 Bharat Mediratta
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */

class CleanCacheStep extends UpgradeStep {
    function stepName() {
	return _('Empty Cache');
    }

    function loadTemplateData(&$templateData) {
	global $gallery;
	$platform = $gallery->getPlatform();
	$cacheBaseDir = $gallery->getConfig('data.gallery.cache');

	/* Keep the obsolete layout dir in the list for a while */
	$cacheDirs = array('entity', 'layout', 'module', 'theme');
	$error = false;
	$templateData['unclean'] = array();
	foreach ($cacheDirs as $dir) {
	    $dir = sprintf('%s%s', $cacheBaseDir, $dir);
	    if ($platform->file_exists($dir)) {
		if (!$platform->recursiveRmDir($dir)) {
		    $templateData['unclean'][] = $dir;
		}
	    }
	}

	/*
	 * Delete the install.log file that's left over from 2.0 and 2.0.1 installs
	 * since it's in a known location and contains potential information leaks.
	 */
	$dataBase = $gallery->getConfig('data.gallery.base');
	$legacyInstallLogPath = sprintf('%s/install.log', $dataBase);
	if ($platform->file_exists($legacyInstallLogPath)) {
	    $platform->unlink($legacyInstallLogPath);
	}

	$templateData['bodyFile'] = 'CleanCache.html';
	$this->setComplete(true);
    }
}
?>