<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2008 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.
 */

/**
 * Authentication
 * @package Upgrade
 */
class AuthenticateStep extends UpgradeStep {

    function stepName() {
	return _('Authenticate');
    }

    function loadTemplateData(&$templateData) {
	global $gallery;

	if (!$this->isComplete()) {
	    $authFile = GALLERY_CONFIG_DIR . '/login.txt';
	    $templateData['authKey'] = GallerySetupUtilities::getAuthenticationKey();
	    if (empty($templateData['authKey'])) {
		$templateData['authKey'] = GallerySetupUtilities::generateAuthenticationKey();
		GallerySetupUtilities::setAuthenticationKey($templateData['authKey']);
	    }
	    $templateData['authFile'] = sprintf(
		'%s%s%s', basename(GALLERY_CONFIG_DIR), DIRECTORY_SEPARATOR, basename($authFile));

	    $attempts = GallerySetupUtilities::getLoginAttempts();
	    if ($attempts === false || $attempts >= G2_SUPPORT_MAX_LOGIN_ATTEMPTS) {
		if (!file_exists($authFile)) {
		    $templateData['authFileErrors']['missing'] = 1;
		} else if (!is_readable($authFile)) {
		    $templateData['authFileErrors']['unreadable'] = 1;
		} else {
		    $authKeyFromFile = trim(join('', file($authFile)));
		    if ($authKeyFromFile == $templateData['authKey']) {
			GallerySetupUtilities::authenticateThisSession();
		    } else {
			$templateData['authFileErrors']['mismatch'] = 1;
		    }
		}
		$templateData['renderType'] = 'loginTxtForm';
	    } else {
		if (isset($_POST['password_sent'])) {
		    if (empty($_POST['password'])) {
			$templateData['error']['password'] = _('<b>Error:</b> missing password.');
		    } else if ($_POST['password'] != $gallery->getConfig('setup.password')) {
			$templateData['error']['password'] = _('<b>Error:</b> invalid password.');
			GallerySetupUtilities::setLoginAttempts(++$attempts);
			if ($attempts > G2_SUPPORT_MAX_LOGIN_ATTEMPTS) {
			    GallerySetupUtilities::notifySiteAdministrator();
			}
		    } else {
			GallerySetupUtilities::authenticateThisSession();
		    }
		}
		$templateData['renderType'] = 'password';
	    }

	    if (GallerySetupUtilities::isSessionAuthenticated()) {
		$this->setComplete(true);
	    }
	}

	if ($this->isComplete()) {
	    $templateData['bodyFile'] = 'AuthenticateSuccessful.html';
	} else {
	    $templateData['bodyFile'] = 'AuthenticateRequest.html';
	}
    }
}
?>