<?php

/**
 * @package tikiwiki
 */

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

$section = 'wiki page';
require_once('tiki-setup.php');
$structlib = TikiLib::lib('struct');

$wikilib = TikiLib::lib('wiki');

$parserlib = TikiLib::lib('parser');

if ($prefs['feature_categories'] == 'y') {
    $categlib = TikiLib::lib('categ');
}

$access->check_feature('feature_wiki');

// Create the HomePage if it doesn't exist
if (! $tikilib->page_exists($prefs['wikiHomePage'])) {
    $tikilib->create_page($prefs['wikiHomePage'], 0, '', $tikilib->now, 'Tiki initialization');
}

if (! isset($_SESSION["thedate"])) {
    $thedate = $tikilib->now;
} else {
    $thedate = $_SESSION["thedate"];
}

// Get the page from the request var or default it to HomePage
if (! isset($_REQUEST["page"])) {
    $_REQUEST["page"] = $wikilib->get_default_wiki_page();
}
$page = $_REQUEST['page'];
$smarty->assign('page', $page);

if (! $tikilib->page_exists($prefs['wikiHomePage'])) {
    $tikilib->create_page($prefs['wikiHomePage'], 0, '', $tikilib->now, 'Tiki initialization');
}

if (! ($info = $tikilib->get_page_info($page))) {
    // First, try cleaning the url to see if it matches an existing page.
    $wikilib->clean_url_suffix_and_redirect($page, $type = '', $path = '', $prefix = '');

    // If after cleaning the url, the page does not exist then display an error
    $smarty->assign('msg', tra('Page cannot be found'));
    $smarty->display('error.tpl');
    die;
}

require_once 'lib/wiki/renderlib.php';
$pageRenderer = new WikiRenderer($info, $user);
$objectperms = $pageRenderer->applyPermissions();

if ($prefs['flaggedrev_approval'] == 'y' && isset($_REQUEST['latest']) && $objectperms->wiki_view_latest) {
    $pageRenderer->forceLatest();
}

$access->check_permission('tiki_p_view', '', 'wiki page', $page);

// BreadCrumbNavigation here
// Remember to reverse the array when posting the array

if (! isset($_SESSION["breadCrumb"])) {
    $_SESSION["breadCrumb"] = [];
}

if (! in_array($page, $_SESSION["breadCrumb"])) {
    if (count($_SESSION["breadCrumb"]) > $prefs['userbreadCrumb']) {
        array_shift($_SESSION["breadCrumb"]);
    }

    array_push($_SESSION["breadCrumb"], $page);
} else {
    // If the page is in the array move to the last position
    $pos = array_search($page, $_SESSION["breadCrumb"]);

    unset($_SESSION["breadCrumb"][$pos]);
    array_push($_SESSION["breadCrumb"], $page);
}

// Now increment page hits since we are visiting this page
$tikilib->add_hit($page);

$smarty->assign('page_user', $info['user']);

if (
    ($tiki_p_admin_wiki == 'y')
    || ($user and ($user == $info['user']) and ($tiki_p_lock == 'y') and ($prefs['feature_wiki_usrlock'] == 'y'))
) {
    if (isset($_REQUEST["action"])) {
        check_ticket('index-p');
        if ($_REQUEST["action"] == 'unlock') {
            $wikilib->unlock_page($page);
        }
    }
}

// Save to notepad if user wants to
if ($user && $prefs['feature_wiki_notepad'] == 'y' && $tiki_p_notepad == 'y' && $prefs['feature_notepad'] == 'y' && isset($_REQUEST['savenotepad'])) {
        check_ticket('index-p');
    include_once('lib/notepad/notepadlib.php');

    $notepadlib->replace_note($user, 0, $_REQUEST['page'], $info['data']);
}

// Verify lock status
if ($info["flag"] == 'L') {
    $smarty->assign('lock', true);
} else {
    $smarty->assign('lock', false);
}

// If not locked and last version is user version then can undo
$smarty->assign('canundo', 'n');

if ($info["flag"] != 'L' && (($tiki_p_edit == 'y' && $info["user"] == $user) || ($tiki_p_remove == 'y'))) {
    $smarty->assign('canundo', 'y');
}

if ($tiki_p_admin_wiki == 'y') {
    $smarty->assign('canundo', 'y');
}

if (isset($_REQUEST['refresh'])) {
    $tikilib->invalidate_cache($page);
}

$smarty->assign('cached_page', 'n');

if (! isset($_REQUEST['pagenum'])) {
    $_REQUEST['pagenum'] = 1;
}

if (isset($_REQUEST['pagenum']) && $_REQUEST['pagenum'] > 0) {
    $pageRenderer->setPageNumber((int) $_REQUEST['pagenum']);
}


include_once('tiki-section_options.php');

$pageRenderer->runSetups();

ask_ticket('index-p');

// disallow robots to index page
$smarty->assign('metatag_robots', 'NOINDEX, NOFOLLOW');
// Display the Index Template
$smarty->display("tiki-index_p.tpl");