<?php
/**
 * Outputs the header used by most forum pages.
 *
 * @copyright (C) 2008-2009 PunBB, partially based on code (C) 2008-2009 FluxBB.org
 * @license http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
 * @package PunBB
 */


// Make sure no one attempts to run this script "directly"
if (!defined('FORUM'))
 exit;

// Send no-cache headers
header('Expires: Thu, 21 Jul 1977 07:30:00 GMT'); // When yours truly first set eyes on this world! :)
header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');  // For HTTP/1.0 compability

// Send the Content-type header in case the web server is setup to send something else
header('Content-type: text/html; charset=utf-8');

// Load the main template
if (substr(FORUM_PAGE, 0, 5) == 'admin')
{
 if (file_exists(FORUM_ROOT.'style/'.$forum_user['style'].'/admin.tpl'))
  $tpl_path = FORUM_ROOT.'style/'.$forum_user['style'].'/admin.tpl';
 else
  $tpl_path = FORUM_ROOT.'include/template/admin.tpl';
}
else if (FORUM_PAGE == 'help')
{
 if (file_exists(FORUM_ROOT.'style/'.$forum_user['style'].'/help.tpl'))
  $tpl_path = FORUM_ROOT.'style/'.$forum_user['style'].'/help.tpl';
 else
  $tpl_path = FORUM_ROOT.'include/template/help.tpl';
}
else
{
 if (file_exists(FORUM_ROOT.'style/'.$forum_user['style'].'/main.tpl'))
  $tpl_path = FORUM_ROOT.'style/'.$forum_user['style'].'/main.tpl';
 else
  $tpl_path = FORUM_ROOT.'include/template/main.tpl';
}

($hook = get_hook('hd_pre_template_loaded')) ? eval&#40;$hook&#41; : null;

$tpl_main = file_get_contents&#40;$tpl_path&#41;;

($hook = get_hook('hd_template_loaded')) ? eval&#40;$hook&#41; : null;

// START SUBST - <!-- forum_include "*" -->
while (preg_match('#<!-- ?forum_include "([^/\\\\]*?)" ?-->#', $tpl_main, $cur_include))
{
 if (!file_exists(FORUM_ROOT.'include/user/'.$cur_include[1]))
  error('Unable to process user include <!-- forum_include "'.forum_htmlencode($cur_include[1]).'" --> from template main.tpl. There is no such file in folder /include/user/', __FILE__, __LINE__);

 ob_start();
 include FORUM_ROOT.'include/user/'.$cur_include[1];
 $tpl_temp = ob_get_contents();
 $tpl_main = str_replace($cur_include[0], $tpl_temp, $tpl_main);
 ob_end_clean();
}
// END SUBST - <!-- forum_include "*" -->


// START SUBST - <!-- forum_local -->
$tpl_main = str_replace('<!-- forum_local -->', 'xml:lang="'.$lang_common['lang_identifier'].'" lang="'.$lang_common['lang_identifier'].'" dir="'.$lang_common['lang_direction'].'"', $tpl_main);
// END SUBST - <!-- forum_local -->


// START SUBST - <!-- forum_head -->

// Is this a page that we want search index spiders to index?
if (!defined('FORUM_ALLOW_INDEX'))
 $forum_head['robots'] = '<meta name="ROBOTS" content="NOINDEX, FOLLOW" />';
else
 $forum_head['descriptions'] = '<meta name="description" content="'.generate_crumbs(true).' '.$lang_common['Title separator'].' '.forum_htmlencode($forum_config['o_board_desc']).'" />';

// Should we output a MicroID? http://microid.org/
if (strpos(FORUM_PAGE, 'profile') === 0)
 $forum_head['microid'] = '<meta name="microid" content="mailto+http:sha1:'.sha1(sha1('mailto:'.$user['email']).sha1(forum_link($forum_url['user'], $id))).'" />';

$forum_head['title'] = '<title>'.generate_crumbs(true).'</title>';

// Should we output feed links?
if (FORUM_PAGE == 'index')
{
 $forum_head['rss'] = '<link rel="alternate" type="application/rss+xml" href="'.forum_link($forum_url['index_rss']).'" title="RSS" />';
 $forum_head['atom'] = '<link rel="alternate" type="application/atom+xml" href="'.forum_link($forum_url['index_atom']).'" title="ATOM" />';
}
else if (FORUM_PAGE == 'viewforum')
{
 $forum_head['rss'] = '<link rel="alternate" type="application/rss+xml" href="'.forum_link($forum_url['forum_rss'], $id).'" title="RSS" />';
 $forum_head['atom'] = '<link rel="alternate" type="application/atom+xml" href="'.forum_link($forum_url['forum_atom'], $id).'" title="ATOM" />';
}
else if (FORUM_PAGE == 'viewtopic')
{
 $forum_head['rss'] = '<link rel="alternate" type="application/rss+xml" href="'.forum_link($forum_url['topic_rss'], $id).'" title="RSS" />';
 $forum_head['atom'] =  '<link rel="alternate" type="application/atom+xml" href="'.forum_link($forum_url['topic_atom'], $id).'" title="ATOM" />';
}


$forum_head['top'] = '<link rel="top" href="'.$base_url.'" title="'.$lang_common['Forum index'].'" />';

// If there are more than two breadcrumbs, add the "up" link (second last)
if (count($forum_page['crumbs']) > 2)
 $forum_head['up'] = '<link rel="up" href="'.$forum_page['crumbs'][count($forum_page['crumbs']) - 2][1].'" title="'.forum_htmlencode($forum_page['crumbs'][count($forum_page['crumbs']) - 2][0]).'" />';

// If there are other page navigation links (first, next, prev and last)
if (!empty($forum_page['nav']))
 $forum_head['nav'] = implode("\n", $forum_page['nav']);

$forum_head['search'] = '<link rel="search" href="'.forum_link($forum_url['search']).'" title="'.$lang_common['Search'].'" />';
$forum_head['author'] = '<link rel="author" href="'.forum_link($forum_url['users']).'" title="'.$lang_common['User list'].'" />';

ob_start();

// Include stylesheets
require FORUM_ROOT.'style/'.$forum_user['style'].'/'.$forum_user['style'].'.php';

$head_temp = forum_trim(ob_get_contents());
$num_temp = 0;

foreach (explode("\n", $head_temp) as $style_temp)
 $forum_head['style'.$num_temp++] = $style_temp;

ob_end_clean();

$forum_head['commonjs'] = '[removed][removed]';

($hook = get_hook('hd_head')) ? eval&#40;$hook&#41; : null;

$tpl_main = str_replace('<!-- forum_head -->', implode("\n", $forum_head), $tpl_main);
unset($forum_head);

// END SUBST - <!-- forum_head -->


// START SUBST OF COMMON ELEMENTS
// Setup array of general elements
$gen_elements = array();

// Forum page id and classes
if (!defined('FORUM_PAGE_TYPE'))
{
 if (substr(FORUM_PAGE, 0, 5) == 'admin')
  define('FORUM_PAGE_TYPE', 'admin-page');
 else
 {
  if (!empty($forum_page['page_post']))
   define('FORUM_PAGE_TYPE', 'paged-page');
  else if (!empty($forum_page['main_menu']))
   define('FORUM_PAGE_TYPE', 'menu-page');
  else
   define('FORUM_PAGE_TYPE', 'basic-page');
 }
}

$gen_elements['<!-- forum_page -->'] = 'id="brd-'.FORUM_PAGE.'" class="brd-page '.FORUM_PAGE_TYPE.'"';

// Skip link
$gen_elements['<!-- forum_skip -->'] = '<p id="brd-access"><a href="#brd-main">'.$lang_common['Skip to content'].'</a></p>';

// Forum Title
$gen_elements['<!-- forum_title -->'] = '<p id="brd-title"><a href="'.forum_link($forum_url['index']).'">'.forum_htmlencode($forum_config['o_board_title']).'</a></p>';

// Forum Description
$gen_elements['<!-- forum_desc -->'] = ($forum_config['o_board_desc'] != '') ? '<p id="brd-desc">'.forum_htmlencode($forum_config['o_board_desc']).'</p>' : '';

// Main Navigation
$gen_elements['<!-- forum_navlinks -->'] = '<ul>'."\n\t\t".generate_navlinks()."\n\t".'</ul>';

// Announcement
$gen_elements['<!-- forum_announcement -->'] = ($forum_config['o_announcement'] == '1' && $forum_user['g_read_board'] == '1') ? '<div id="brd-announcement" class="gen-content">'.($forum_config['o_announcement_heading'] != '' ? "\n\t".'<h1 class="hn"><span>'.$forum_config['o_announcement_heading'].'</span></h1>' : '')."\n\t".'<div class="content">'.$forum_config['o_announcement_message'].'</div>'."\n".'</div>'."\n" : '';

// Maintenance Warning
$gen_elements['<!-- forum_maint -->'] = ($forum_user['g_id'] == FORUM_ADMIN && $forum_config['o_maintenance'] == '1') ? '<p id="maint-alert" class="warn">'.sprintf($lang_common['Maintenance warning'], '<a href="'.forum_link($forum_url['admin_settings_maintenance']).'">'.$lang_common['Maintenance mode'].'</a>').'</p>' : '';

($hook = get_hook('hd_gen_elements')) ? eval&#40;$hook&#41; : null;

$tpl_main = str_replace(array_keys($gen_elements), array_values($gen_elements), $tpl_main);
unset($gen_elements);

// END SUBST OF COMMON ELEMENTS


// START SUBST VISIT ELEMENTS
$visit_elements = array();

if ($forum_user['is_guest'])
 $visit_elements['<!-- forum_welcome -->'] = '<p id="welcome"><span>'.$lang_common['Not logged in'].'</span> <span>'.$lang_common['Login nag'].'</span></p>';
else
 $visit_elements['<!-- forum_welcome -->'] = '<p id="welcome"><span>'.sprintf($lang_common['Logged in as'], '<strong>'.forum_htmlencode($forum_user['username']).'</strong>').'</span> <span>'.sprintf($lang_common['Last visit'], format_time($forum_user['last_visit'])).'</span></p>';

if ($forum_user['g_read_board'] == '1' && $forum_user['g_search'] == '1')
{
 $visit_links = array();

 if (!$forum_user['is_guest'])
  $visit_links['newposts'] = '<span id="visit-new"'.(empty($visit_links) ? ' class="first-item"' : '').'><a href="'.forum_link($forum_url['search_new']).'" title="'.$lang_common['New posts title'].'">'.$lang_common['New posts'].'</a></span>';

 $visit_links['recent'] = '<span id="visit-recent"'.(empty($visit_links) ? ' class="first-item"' : '').'><a href="'.forum_link($forum_url['search_recent']).'" title="'.$lang_common['Active topics title'].'">'.$lang_common['Active topics'].'</a></span>';
 $visit_links['unanswered'] = '<span id="visit-unanswered"'.(empty($visit_links) ? ' class="first-item"' : '').'><a href="'.forum_link($forum_url['search_unanswered']).'" title="'.$lang_common['Unanswered topics title'].'">'.$lang_common['Unanswered topics'].'</a></span>';
}

$visit_elements['<!-- forum_visit -->'] = (!empty($visit_links)) ? '<p id="visit-links" class="options">'.implode(' ', $visit_links).'</p>' : '';

($hook = get_hook('hd_visit_elements')) ? eval&#40;$hook&#41; : null;

$tpl_main = str_replace(array_keys($visit_elements), array_values($visit_elements), $tpl_main);
unset($visit_elements);

// END SUBST VISIT ELEMENTS


// START SUBST - <!-- forum_admod -->
$admod_links = array();

// We only need to run this query for mods/admins if there will actually be reports to look at
if ($forum_user['is_admmod'] && $forum_config['o_report_method'] != 1)
{
 $query = array(
  'SELECT' => 'COUNT(r.id)',
  'FROM'  => 'reports AS r',
  'WHERE'  => 'r.zapped IS NULL',
 );

 ($hook = get_hook('hd_qr_get_unread_reports_count')) ? eval&#40;$hook&#41; : null;
 $result_header = $forum_db->query_build($query) or error(__FILE__, __LINE__);

 if ($forum_db->result($result_header))
  $admod_links['reports'] = '<span id="reports"><a href="'.forum_link($forum_url['admin_reports']).'">'.$lang_common['New reports'].'</a></span>';
}

if ($forum_user['g_id'] == FORUM_ADMIN)
{
 $alert_items = array();

 // Warn the admin that maintenance mode is enabled
 if ($forum_config['o_maintenance'] == '1')
  $alert_items['maintenance'] = '<p id="maint-alert" class="warn">'.$lang_common['Maintenance alert'].'</p>';

 if ($forum_config['o_check_for_updates'] == '1')
 {
  if ($forum_updates['fail'])
   $alert_items['update_fail'] = '<p><strong>'.$lang_common['Updates'].'</strong> '.$lang_common['Updates failed'].'</p>';
  else if (isset($forum_updates['version']) && isset($forum_updates['hotfix']))
   $alert_items['update_version_hotfix'] = '<p><strong>'.$lang_common['Updates'].'</strong> '.sprintf($lang_common['Updates version n hf'], $forum_updates['version'], forum_link($forum_url['admin_extensions_hotfixes'])).'</p>';
  else if (isset($forum_updates['version']))
   $alert_items['update_version'] = '<p><strong>'.$lang_common['Updates'].'</strong> '.sprintf($lang_common['Updates version'], $forum_updates['version']).'</p>';
  else if (isset($forum_updates['hotfix']))
   $alert_items['update_hotfix'] = '<p><strong>'.$lang_common['Updates'].'</strong> '.sprintf($lang_common['Updates hf'], forum_link($forum_url['admin_extensions_hotfixes'])).'</p>';
 }

 // Warn the admin that their version of the database is newer than the version supported by the code
 // NOTE: Why is it done on any page, but shown in admin section only.
 if ($forum_config['o_database_revision'] > FORUM_DB_REVISION)
  $alert_items['newer_database'] = '<p><strong>'.$lang_common['Database mismatch'].'</strong> '.$lang_common['Database mismatch alert'].'</p>';

 if (!empty($alert_items))
  $admod_links['alert'] = '<span id="alert"><a href="'.forum_link($forum_url['admin_index']).'"><strong>'.$lang_common['New alerts'].'</strong></a></span>';

 ($hook = get_hook('hd_alert')) ? eval&#40;$hook&#41; : null;
}

$tpl_main = str_replace('<!-- forum_admod -->', (!empty($admod_links)) ? '<p id="brd-admod">'.implode(' ', $admod_links).'</p>' : '', $tpl_main);

// END SUBST - <!-- forum_admod -->


// MAIN SECTION INTERFACE ELEMENT SUBSTITUTION
$main_elements = array();

// Top breadcrumbs
$main_elements['<!-- forum_crumbs_top -->'] = (FORUM_PAGE != 'index') ? '<div id="brd-crumbs-top" class="crumbs gen-content">'."\n\t".'<p>'.generate_crumbs(false).'</p>'."\n".'</div>' : '';

// Bottom breadcrumbs
$main_elements['<!-- forum_crumbs_end -->'] = (FORUM_PAGE != 'index') ? '<div id="brd-crumbs-end" class="crumbs gen-content">'."\n\t".'<p>'.generate_crumbs(false).'</p>'."\n".'</div>' : '';
// Main section heading
$main_elements['<!-- forum_main_title -->'] =  '<h1 class="main-title">'.((isset($forum_page['main_title'])) ? $forum_page['main_title'] : forum_htmlencode(is_array($last_crumb = end($forum_page['crumbs'])) ? reset($last_crumb) : $last_crumb)).(isset($forum_page['main_head_pages']) ? ' <small>'.$forum_page['main_head_pages'].'</small>' : '').'</h1>'."\n";

// Top pagination and post links
$main_elements['<!-- forum_main_pagepost_top -->'] = (!empty($forum_page['page_post'])) ? '<div id="brd-pagepost-top" class="main-pagepost gen-content">'."\n\t".implode("\n\t", $forum_page['page_post'])."\n".'</div>' : '';

// Bottom pagination and postlink
$main_elements['<!-- forum_main_pagepost_end -->'] = (!empty($forum_page['page_post'])) ? '<div id="brd-pagepost-end" class="main-pagepost gen-content">'."\n\t".implode("\n\t", $forum_page['page_post'])."\n".'</div>' : '';

// Main section menu e.g. profile menu
$main_elements['<!-- forum_main_menu -->'] = (!empty($forum_page['main_menu'])) ? '<div class="main-menu gen-content">'."\n\t".'<ul>'."\n\t\t".implode("\n\t\t", $forum_page['main_menu'])."\n\t".'</ul>'."\n".'</div>' : '';

// Main section menu e.g. profile menu
if (substr(FORUM_PAGE, 0, 5) == 'admin' && FORUM_PAGE_TYPE != 'paged')
{
 $main_elements['<!-- forum_admin_menu -->'] = '<div class="admin-menu gen-content">'."\n\t".'<ul>'."\n\t\t".generate_admin_menu(false)."\n\t".'</ul>'."\n".'</div>';

 $forum_page['admin_sub'] = generate_admin_menu(true);
  $main_elements['<!-- forum_admin_submenu -->'] = ($forum_page['admin_sub'] != '') ? '<div class="admin-submenu gen-content">'."\n\t".'<ul>'."\n\t\t".$forum_page['admin_sub']."\n\t".'</ul>'."\n".'</div>' : '';
}

($hook = get_hook('hd_main_elements')) ? eval&#40;$hook&#41; : null;

$tpl_main = str_replace(array_keys($main_elements),  array_values($main_elements), $tpl_main);
unset($main_elements);

// END MAIN SECTION INTERFACE ELEMENT SUBSTITUTION


($hook = get_hook('hd_end')) ? eval&#40;$hook&#41; : null;

if (!defined('FORUM_HEADER'))
 define('FORUM_HEADER', 1);