637 lines
20 KiB
PHP
637 lines
20 KiB
PHP
<?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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include(dirname(__FILE__) . '/bootstrap.inc');
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/*
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* If they don't have a setup password, we assume that the config.php is empty and this is an
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* initial install
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*/
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if (!@$gallery->getConfig('setup.password')) {
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/* May be invalid if a multisite install lost its config.php; galleryBaseUrl unknown */
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header('Location: install/');
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return;
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}
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if ($gallery->isEmbedded()) {
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require_once(dirname(__FILE__) . '/init.inc');
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} else {
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/* If this is a request for a public data file, give it to the user immediately */
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$unsanitizedView = isset($_GET[GALLERY_FORM_VARIABLE_PREFIX . 'view']) ?
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$_GET[GALLERY_FORM_VARIABLE_PREFIX . 'view'] : null;
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$itemId = (int)(isset($_GET[GALLERY_FORM_VARIABLE_PREFIX . 'itemId']) ?
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$_GET[GALLERY_FORM_VARIABLE_PREFIX . 'itemId'] : null);
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if ($unsanitizedView == 'core.DownloadItem' && !empty($itemId)) {
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/*
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* Our URLs are immutable because they have the serial numbers embedded. If the browser
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* presents us with an If-Modified-Since then it has the latest version of the file already.
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*/
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if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])
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|| (function_exists('getallheaders')
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&& ($headers = getallheaders())
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&& (isset($headers['If-Modified-Since'])
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|| isset($headers['If-modified-since'])))) {
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header('HTTP/1.0 304 Not Modified');
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return;
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}
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/*
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* Fast download depends on having data.gallery.cache set, so set it now. If for some
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* reason we fail, we'll reset it in init.inc (but that's OK).
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*/
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$gallery->setConfig(
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'data.gallery.cache', $gallery->getConfig('data.gallery.base') . 'cache/');
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$path = GalleryDataCache::getCachePath(
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array('type' => 'fast-download', 'itemId' => $itemId));
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/* We don't have a platform yet so we have to use the raw file_exists */
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/* Disable fast-download in maintenance mode, admins still get via core.DownloadItem */
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if (file_exists($path) && !$gallery->getConfig('mode.maintenance')) {
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include($path);
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if (GalleryFastDownload()) {
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return;
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}
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}
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}
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/* Otherwise, proceed with our regular process */
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require_once(dirname(__FILE__) . '/init.inc');
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$ret = GalleryInitFirstPass();
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if ($ret) {
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_GalleryMain_errorHandler($ret, null, false);
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return;
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}
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/* Process the request */
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GalleryMain();
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}
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/**
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* Main handler for all Gallery pages/requests.
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* @package Gallery
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*/
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function GalleryMain($embedded=false) {
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global $gallery;
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/* Process the request */
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list ($ret, $g2Data) = _GalleryMain($embedded);
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if (!$ret) {
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$gallery->performShutdownActions();
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/* Write out our session data */
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$session =& $gallery->getSession();
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$ret = $session->save();
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}
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/* Complete our transaction */
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if (!$ret && $gallery->isStorageInitialized()) {
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$storage =& $gallery->getStorage();
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$ret = $storage->commitTransaction();
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}
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/* Error handling (or redirect info in debug mode) */
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if ($ret) {
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_GalleryMain_errorHandler($ret, $g2Data);
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$g2Data['isDone'] = true;
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if ($ret && $gallery->isStorageInitialized()) {
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/* Nuke our transaction, too */
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$storage =& $gallery->getStorage();
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$storage->rollbackTransaction();
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/* Reset the auth token */
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if ($ret->getErrorCode() & ERROR_REQUEST_FORGED) {
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$session =& $gallery->getSession();
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$ret2 = $storage->beginTransaction();
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if (!$ret2) {
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$ret2 = $session->save();
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}
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if (!$ret2) {
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$storage->commitTransaction();
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}
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}
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}
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} else if (isset($g2Data['redirectUrl'])) {
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/* If we're in debug mode, show a redirect page */
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print '<h1> Debug Redirect </h1> ' .
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'Not automatically redirecting you to the next page because we\'re in debug mode<br/>';
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printf('<a href="%s">Continue to the next page</a>', $g2Data['redirectUrl']);
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print '<hr/>';
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print '<pre>';
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print $gallery->getDebugBuffer();
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print '</pre>';
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}
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return $g2Data;
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}
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/**
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* Process our request.
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* @return array object GalleryStatus a status code
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* array
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*/
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function _GalleryMain($embedded=false) {
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global $gallery;
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$urlGenerator =& $gallery->getUrlGenerator();
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/* Figure out the target view/controller */
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list ($controllerName, $viewName) = GalleryUtilities::getRequestVariables('controller', 'view');
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$controllerName = is_string($controllerName) ? $controllerName : null;
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$viewName = is_string($viewName) ? $viewName : null;
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$gallery->debug("controller $controllerName, view $viewName");
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/* Check if core module needs upgrading */
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list ($ret, $core) = GalleryCoreApi::loadPlugin('module', 'core', true);
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if ($ret) {
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return array($ret, null);
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}
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$installedVersions = $core->getInstalledVersions();
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if ($installedVersions['core'] != $core->getVersion()) {
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if ($redirectUrl = @$gallery->getConfig('mode.maintenance')) {
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/* Maintenance mode - redirect if given URL, else simple message */
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if ($redirectUrl === true) {
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print $core->translate('Site is temporarily down for maintenance.');
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exit;
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}
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} else {
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$gallery->debug('Redirect to the upgrade wizard, core module version is out of date');
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$redirectUrl = $urlGenerator->getCurrentUrlDir(true) . 'upgrade/index.php';
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}
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return array(null, _GalleryMain_doRedirect($redirectUrl));
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}
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$ret = GalleryInitSecondPass();
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if ($ret) {
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return array($ret, null);
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}
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/* Load and run the appropriate controller */
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$results = array();
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if (!empty($controllerName)) {
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GalleryCoreApi::requireOnce('modules/core/classes/GalleryController.class');
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list ($ret, $controller) = GalleryController::loadController($controllerName);
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if ($ret) {
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return array($ret, null);
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}
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if (!$embedded && $gallery->getConfig('mode.embed.only')
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&& !$controller->isAllowedInEmbedOnly()) {
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/* Lock out direct access when embed-only is set */
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if (($redirectUrl = $gallery->getConfig('mode.embed.only')) === true) {
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return array(GalleryCoreApi::error(ERROR_PERMISSION_DENIED), null);
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}
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return array(null, _GalleryMain_doRedirect($redirectUrl));
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}
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if ($gallery->getConfig('mode.maintenance') && !$controller->isAllowedInMaintenance()) {
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/* Maintenance mode - allow admins, else redirect to given or standard URL */
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list ($ret, $isAdmin) = GalleryCoreApi::isUserInSiteAdminGroup();
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if ($ret) {
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return array($ret, null);
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}
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if (!$isAdmin) {
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if (($redirectUrl = $gallery->getConfig('mode.maintenance')) === true) {
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$redirectUrl = $urlGenerator->generateUrl(
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array('view' => 'core.MaintenanceMode'), array('forceFullUrl' => true));
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}
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return array(null, _GalleryMain_doRedirect($redirectUrl));
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}
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}
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/* Get our form and return variables */
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$form = GalleryUtilities::getFormVariables('form');
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/* Verify the genuineness of the request */
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if (!$controller->omitAuthTokenCheck()) {
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$ret = GalleryController::assertIsGenuineRequest();
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if ($ret) {
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return array($ret, null);
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}
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}
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/* Let the controller handle the input */
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list ($ret, $results) = $controller->handleRequest($form);
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if ($ret) {
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return array($ret, null);
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}
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/* Check to make sure we got back everything we want */
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if (!isset($results['status'])
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|| !isset($results['error'])
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|| (!isset($results['redirect'])
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&& !isset($results['delegate'])
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&& !isset($results['return']))) {
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return array(GalleryCoreApi::error(ERROR_BAD_PARAMETER, __FILE__, __LINE__,
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'Controller results are missing status, error, (redirect, delegate, return)'),
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null);
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}
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/* Try to return if the controller instructs it */
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if (!empty($results['return'])) {
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list ($ret, $navigationLinks) = $urlGenerator->getNavigationLinks(1);
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if ($ret) {
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return array($ret, null);
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}
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if (count($navigationLinks) > 0) {
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/* Go back to the previous navigation point in our history */
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$redirectUrl = $navigationLinks[0]['url'];
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} else {
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$redirectUrl = GalleryUtilities::getRequestVariables('return');
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if (empty($redirectUrl)) {
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$redirectUrl = GalleryUtilities::getRequestVariables('formUrl');
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}
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}
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}
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/* Failing that, redirect if so instructed */
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if (empty($redirectUrl) && !empty($results['redirect'])) {
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/* If we have a status, store its data in the session and attach it to the URL */
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if (!empty($results['status'])) {
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$session =& $gallery->getSession();
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$results['redirect']['statusId'] = $session->putStatus($results['status']);
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}
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$urlToGenerate = $results['redirect'];
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/* Keep our navId in the URL */
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$navId = $urlGenerator->getNavigationId();
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if (!empty($navId)) {
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$urlToGenerate['navId'] = $navId;
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}
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$redirectUrl = $urlGenerator->generateUrl($urlToGenerate,
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array('forceFullUrl' => true));
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}
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/* If we have a redirect URL use it */
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if (!empty($redirectUrl)) {
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return array(null, _GalleryMain_doRedirect($redirectUrl, null, $controllerName));
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}
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/* Let the controller specify the next view */
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if (!empty($results['delegate'])) {
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/* Load any errors into the request */
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if (!empty($results['error'])) {
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foreach ($results['error'] as $error) {
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GalleryUtilities::putRequestVariable($error, 1);
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}
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}
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/* Save the view name, put the rest into the request so the view can get it */
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foreach ($results['delegate'] as $key => $value) {
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switch($key) {
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case 'view':
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$viewName = $value;
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break;
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default:
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GalleryUtilities::putRequestVariable($key, $value);
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break;
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}
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}
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}
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}
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/* Load and run the appropriate view */
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if (empty($viewName)) {
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$viewName = GALLERY_DEFAULT_VIEW;
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GalleryUtilities::putRequestVariable('view', $viewName);
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}
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list ($ret, $view) = GalleryView::loadView($viewName);
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if ($ret) {
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return array($ret, null);
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}
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if ($gallery->getConfig('mode.maintenance') && !$view->isAllowedInMaintenance()) {
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/* Maintenance mode - allow admins, else redirect to given url or show standard view */
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list ($ret, $isAdmin) = GalleryCoreApi::isUserInSiteAdminGroup();
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if ($ret) {
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return array($ret, null);
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}
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if (!$isAdmin) {
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if (($redirectUrl = $gallery->getConfig('mode.maintenance')) !== true) {
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return array(null, _GalleryMain_doRedirect($redirectUrl));
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}
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$viewName = 'core.MaintenanceMode';
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list ($ret, $view) = GalleryView::loadView($viewName);
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if ($ret) {
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return array($ret, null);
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}
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}
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}
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if (!$embedded && $gallery->getConfig('mode.embed.only') && !$view->isAllowedInEmbedOnly()) {
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/* Lock out direct access when embed-only is set */
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if (($redirectUrl = $gallery->getConfig('mode.embed.only')) === true) {
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return array(GalleryCoreApi::error(ERROR_PERMISSION_DENIED), null);
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}
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return array(null, _GalleryMain_doRedirect($redirectUrl));
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}
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/* Check if the page is cached and return the cached version, else generate the page */
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list ($ret, $shouldCache) = GalleryDataCache::shouldCache('read', 'full');
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if ($ret) {
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return array($ret, null);
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}
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$html = '';
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if ($shouldCache) {
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$session =& $gallery->getSession();
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list ($ret, $html) = GalleryDataCache::getPageData(
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'page', $urlGenerator->getCacheableUrl());
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if ($ret) {
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return array($ret, null);
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}
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if (!empty($html) && $embedded) {
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/* Also get the theme data */
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list ($ret, $themeData) = GalleryDataCache::getPageData(
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'theme', $urlGenerator->getCacheableUrl());
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if ($ret) {
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return array($ret, null);
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}
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}
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}
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if (!empty($html) && (!$embedded || !empty($themeData))) {
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/* TODO: If we cache all the headers and replay them here, we could send a 304 back */
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$session =& $gallery->getSession();
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if (!$embedded) {
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/* Set the appropriate charset in our HTTP header */
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if (!headers_sent()) {
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header('Content-Type: text/html; charset=UTF-8');
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}
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print $session->replaceTempSessionIdIfNecessary($html);
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$data['isDone'] = true;
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} else {
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$html = unserialize($html);
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$themeData = unserialize($themeData);
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$data = $session->replaceSessionIdInData($html);
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$data['themeData'] = $session->replaceSessionIdInData($themeData);
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$data['isDone'] = false;
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}
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} else {
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/* Initialize our container for template data */
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$gallery->setCurrentView($viewName);
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if ($view->isControllerLike()) {
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/* Verify the genuineness of the request */
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$ret = GalleryController::assertIsGenuineRequest();
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if ($ret) {
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return array($ret, null);
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}
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}
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/* If we render directly to the browser, we need a session before, or no session at all */
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if ($view->isImmediate() || $viewName == 'core.ProgressBar') {
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/*
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* Session: Find out whether we need to send a cookie & get a new sessionId and save it
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* (make sure there's a sessionId before starting to render, but only if we need a
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* session)
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*/
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$session =& $gallery->getSession();
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$ret = $session->start();
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if ($ret) {
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return array($ret, null);
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}
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/* From now on, don't add navId/sessionId to URLs if there's no persistent session */
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$session->doNotUseTempId();
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}
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/*
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* If this is an immediate view, it will send its own output directly. This is used in the
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* situation where we want to send back data that's not controlled by the layout. That's
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* usually something that's not user-visible like a binary file.
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*/
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$data = array();
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if ($view->isImmediate()) {
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$status = isset($results['status']) ? $results['status'] : array();
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$error = isset($results['error']) ? $results['error'] : array();
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$ret = $view->renderImmediate($status, $error);
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if ($ret) {
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return array($ret, null);
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}
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$data['isDone'] = true;
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} else {
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GalleryCoreApi::requireOnce('modules/core/classes/GalleryTemplate.class');
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$template = new GalleryTemplate(dirname(__FILE__));
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list ($ret, $results, $theme) = $view->doLoadTemplate($template);
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if ($ret) {
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return array($ret, null);
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}
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if (isset($results['redirect']) || isset($results['redirectUrl'])) {
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if (isset($results['redirectUrl'])) {
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$redirectUrl = $results['redirectUrl'];
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} else {
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$redirectUrl = $urlGenerator->generateUrl($results['redirect'],
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array('forceFullUrl' => true));
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}
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return array(null, _GalleryMain_doRedirect($redirectUrl, $template));
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}
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if (empty($results['body'])) {
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return array(GalleryCoreApi::error(ERROR_BAD_PARAMETER, __FILE__, __LINE__,
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'View results are missing body file'), null);
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}
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$templatePath = 'gallery:' . $results['body'];
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$template->setVariable('l10Domain', $theme->getL10Domain());
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$template->setVariable('isEmbedded', $embedded);
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if ($viewName == 'core.ProgressBar') {
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@ini_set('output_buffering', '0');
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if (function_exists('apache_setenv')) {
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@apache_setenv('no-gzip', '1');
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}
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/* Render progress bar pages immediately so that the user sees the bar moving */
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$ret = $template->display($templatePath);
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if ($ret) {
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return array($ret, null);
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}
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$data['isDone'] = true;
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} else {
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list ($ret, $html) = $template->fetch($templatePath);
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if ($ret) {
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return array($ret, null);
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}
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/*
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* Session: Find out whether we need to send a cookie & need a new session (only if
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* we don't have one yet)
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*/
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$session =& $gallery->getSession();
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$ret = $session->start();
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if ($ret) {
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return array($ret, null);
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}
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list ($ret, $shouldCache) = GalleryDataCache::shouldCache('write', 'full');
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if ($ret) {
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return array($ret, null);
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}
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if ($embedded) {
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$html = $theme->splitHtml($html, $results);
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}
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if ($shouldCache && $results['cacheable']) {
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$htmlForCache = $html;
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if ($embedded) {
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$themeDataForCache = $template->getVariable('theme');
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}
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}
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if ($embedded) {
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$data = $session->replaceSessionIdInData($html);
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$data['themeData'] =& $template->getVariableByReference('theme');
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$data['themeData'] = $session->replaceSessionIdInData($data['themeData']);
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$data['isDone'] = false;
|
|
} else {
|
|
/* Set the appropriate charset in our HTTP header */
|
|
if (!headers_sent()) {
|
|
header('Content-Type: text/html; charset=UTF-8');
|
|
}
|
|
print $session->replaceTempSessionIdIfNecessary($html);
|
|
|
|
$data['isDone'] = true;
|
|
}
|
|
|
|
if ($shouldCache && $results['cacheable']) {
|
|
$session =& $gallery->getSession();
|
|
$cacheKey = $urlGenerator->getCacheableUrl();
|
|
$sessionId = $session->getId();
|
|
|
|
if (!empty($sessionId) && $sessionId != SESSION_TEMP_ID) {
|
|
$htmlForCache = $session->replaceSessionIdInData(
|
|
$htmlForCache, $sessionId, SESSION_TEMP_ID);
|
|
|
|
if ($embedded) {
|
|
$data['themeData'] = $session->replaceSessionIdInData(
|
|
$data['themeData'], $sessionId, SESSION_TEMP_ID);
|
|
}
|
|
}
|
|
|
|
if ($embedded) {
|
|
$htmlForCache = serialize($htmlForCache);
|
|
|
|
$ret = GalleryDataCache::putPageData('theme', $results['cacheable'],
|
|
$cacheKey, serialize($data['themeData']));
|
|
if ($ret) {
|
|
return array($ret, null);
|
|
}
|
|
}
|
|
|
|
$ret = GalleryDataCache::putPageData('page', $results['cacheable'],
|
|
$cacheKey, $htmlForCache);
|
|
if ($ret) {
|
|
return array($ret, null);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return array(null, $data);
|
|
}
|
|
|
|
function _GalleryMain_doRedirect($redirectUrl, $template=null, $controller=null) {
|
|
global $gallery;
|
|
$session =& $gallery->getSession();
|
|
$urlGenerator =& $gallery->getUrlGenerator();
|
|
|
|
/* Create a valid sessionId for guests, if required */
|
|
$ret = $session->start();
|
|
if ($ret) {
|
|
return array($ret, null);
|
|
}
|
|
$redirectUrl = $session->replaceTempSessionIdIfNecessary($redirectUrl);
|
|
$session->doNotUseTempId();
|
|
|
|
/*
|
|
* UserLogin returnUrls don't have a sessionId in the URL to replace, make sure there's a
|
|
* sessionId in the redirectUrl for users that don't use cookies
|
|
*/
|
|
if (!$session->isUsingCookies() && $session->isPersistent()
|
|
&& strpos($redirectUrl, $session->getKey()) === false) {
|
|
$redirectUrl = GalleryUrlGenerator::appendParamsToUrl($redirectUrl,
|
|
array($session->getKey() => $session->getId()));
|
|
}
|
|
|
|
if ($gallery->getDebug() == false || $gallery->getDebug() == 'logged') {
|
|
/*
|
|
* The URL generator makes HTML 4.01 compliant URLs using & but we don't want those in
|
|
* our Location: header
|
|
*/
|
|
$redirectUrl = str_replace('&', '&', $redirectUrl);
|
|
$redirectUrl = rtrim($redirectUrl, '&? ');
|
|
|
|
$redirectUrl = $urlGenerator->makeAbsoluteUrl($redirectUrl);
|
|
|
|
/*
|
|
* IIS 3.0 - 5.0 webservers will ignore all other headers if the location header is set. It
|
|
* will simply not send other headers, eg. the set-cookie header, which is important for us
|
|
* in the login and logout requests / redirects. See:
|
|
* http://support.microsoft.com/kb/q176113/ Our solution: detect IIS version and append
|
|
* GALLERYSID to the Location URL if necessary
|
|
*/
|
|
if (in_array($controller, array('core.Logout', 'core.UserLogin', 'publishxp.Login'))) {
|
|
/* Check if it's IIS and if the version is < 6.0 */
|
|
$webserver = GalleryUtilities::getServerVar('SERVER_SOFTWARE');
|
|
if (!empty($webserver)
|
|
&& preg_match('|^Microsoft-IIS/(\d)\.\d$|', trim($webserver), $matches)
|
|
&& $matches[1] < 6) {
|
|
/*
|
|
* It is IIS and it's a version with this bug, check if GALLERYSID is already in the
|
|
* URL, else append it
|
|
*/
|
|
$session =& $gallery->getSession();
|
|
$sessionParamString =
|
|
GalleryUtilities::prefixFormVariable(urlencode($session->getKey())) . '='
|
|
. urlencode($session->getId());
|
|
if ($session->isPersistent() && !strstr($redirectUrl, $sessionParamString)) {
|
|
$redirectUrl .= (strpos($redirectUrl, '?') === false) ? '?' : '&';
|
|
$redirectUrl .= $sessionParamString;
|
|
}
|
|
}
|
|
}
|
|
|
|
GalleryUtilities::setResponseHeader("Location: $redirectUrl");
|
|
return array('isDone' => true);
|
|
}
|
|
|
|
return array('isDone' => true, 'redirectUrl' => $redirectUrl, 'template' => $template);
|
|
}
|
|
|
|
function _GalleryMain_errorHandler($error, $g2Data=null, $initOk=true) {
|
|
GalleryCoreApi::requireOnce('modules/core/ErrorPage.inc');
|
|
ErrorPageView::errorHandler($error, $g2Data, $initOk);
|
|
}
|
|
?>
|