<?php
/***************************************************************************
 *                              page_header.php
 *                            -------------------
 *   begin                : Saturday, Feb 13, 2001
 *   copyright            : (C) 2001 The phpBB Group
 *   email                : support@phpbb.com
 *
 *   $Id: page_header.php,v 1.106 2002/04/01 13:23:42 psotfx Exp $
 *
 *
 ***************************************************************************/

/***************************************************************************
 *
 *   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.
 *
 ***************************************************************************/

if ( !defined('IN_PHPBB') )
{
	die("Hacking attempt");
}

define('HEADER_INC', TRUE);

//
// gzip_compression
//
$do_gzip_compress = FALSE;
if ( $board_config['gzip_compress'] )
{
	$phpver = phpversion();

	if ( $phpver >= '4.0.4pl1' )
	{
		if ( extension_loaded('zlib') )
		{
			ob_start('ob_gzhandler');
		}
	}
	else if ( $phpver > '4.0' )
	{
		if ( strstr($HTTP_SERVER_VARS['HTTP_ACCEPT_ENCODING'], 'gzip') )
		{
			if ( extension_loaded('zlib') )
			{
				$do_gzip_compress = TRUE;
				ob_start();
				ob_implicit_flush(0);

				header('Content-Encoding: gzip');
			}
		}
	}
}

//
// Parse and show the overall header.
//
$template->set_filenames(array(
	'overall_header' => ( empty($gen_simple_header) ) ? 'overall_header.tpl' : 'simple_header.tpl')
);

//
// Generate logged in/logged out status
//
if ( $userdata['session_logged_in'] )
{
	$u_login_logout = 'login.'.$phpEx.'?logout=true';
	$l_login_logout = $lang['Logout'] . ' [ ' . $userdata['username'] . ' ]';
}
else
{
	$u_login_logout = 'login.'.$phpEx;
	$l_login_logout = $lang['Login'];
}

$s_last_visit = ( $userdata['session_logged_in'] ) ? create_date($board_config['default_dateformat'], $userdata['user_lastvisit'], $board_config['board_timezone']) : '';

//
// Get basic (usernames + totals) online
// situation
//
$user_forum_sql = ( !empty($forum_id) ) ? "AND ( u.user_session_page = $forum_id 
	OR s.session_page = $forum_id)" : '';
$sql = "SELECT u.username, u.user_id, u.user_allow_viewonline, u.user_level, s.session_logged_in, s.session_ip
	FROM ".USERS_TABLE." u, ".SESSIONS_TABLE." s
	WHERE u.user_id = s.session_user_id
		AND ( s.session_time >= ".( time() - 300 ) . " 
			OR u.user_session_time >= " . ( time() - 300 ) . " )
		$user_forum_sql 
	ORDER BY u.username ASC, s.session_ip ASC";
if( !($result = $db->sql_query($sql)) )
{
	message_die(GENERAL_ERROR, 'Could not obtain user/online information', '', __LINE__, __FILE__, $sql);
}

$userlist_ary = array();
$userlist_visible = array();

$logged_visible_online = 0;
$logged_hidden_online = 0;
$guests_online = 0;
$online_userlist = '';

$prev_user_id = 0;
$prev_user_ip = '';

while( $row = $db->sql_fetchrow($result) )
{
	// User is logged in and therefor not a guest
	if ( $row['session_logged_in'] )
	{
		// Skip multiple sessions for one user
		if ( $row['user_id'] != $prev_user_id )
		{
			$style_color = '';
			if ( $row['user_level'] == ADMIN )
			{
				$row['username'] = '<b>' . $row['username'] . '</b>';
				$style_color = 'style="color:#' . $theme['fontcolor3'] . '"';
			}
			else if ( $row['user_level'] == MOD )
			{
				$row['username'] = '<b>' . $row['username'] . '</b>';
				$style_color = 'style="color:#' . $theme['fontcolor2'] . '"';
			}

			if ( $row['user_allow_viewonline'] )
			{
				$user_online_link = '<a href="' . append_sid("profile.$phpEx?mode=viewprofile&amp;" . POST_USERS_URL . "=" . $row['user_id']) . '"' . $style_color .'>' . $row['username'] . '</a>';
				$logged_visible_online++;
			}
			else
			{
				$user_online_link = '<a href="' . append_sid("profile.$phpEx?mode=viewprofile&amp;" . POST_USERS_URL . "=" . $row['user_id']) . '"' . $style_color .'><i>' . $row['username'] . '</i></a>';
				$logged_hidden_online++;
			}
			
			if ( $row['user_allow_viewonline'] || $userdata['user_level'] == ADMIN )
			{
				$online_userlist .= ( $online_userlist != '' ) ? ', ' . $user_online_link : $user_online_link;
			}
		}

		$prev_user_id = $row['user_id'];
	}
	else
	{
		// Skip multiple sessions for one user
		if ( $row['session_ip'] != $prev_session_ip )
		{
			$guests_online++;
		}
	}

	$prev_session_ip = $row['session_ip'];
}

if ( empty($online_userlist) )
{
	$online_userlist = $lang['None'];
}
$online_userlist = ( ( isset($forum_id) ) ? $lang['Browsing_forum'] : $lang['Registered_users'] ) . ' ' . $online_userlist;

$total_online_users = $logged_visible_online + $logged_hidden_online + $guests_online;

if ( $total_online_users > $board_config['record_online_users'])
{
	$board_config['record_online_users'] = $total_online_users;
	$board_config['record_online_date'] = time();

	$sql = "UPDATE " . CONFIG_TABLE . "
		SET config_value = '$total_online_users'
		WHERE config_name = 'record_online_users'";
	if ( !$db->sql_query($sql) )
	{
		message_die(GENERAL_ERROR, 'Could not update online user record (nr of users)', '', __LINE__, __FILE__, $sql);
	}

	$sql = "UPDATE " . CONFIG_TABLE . "
		SET config_value = '" . $board_config['record_online_date'] . "'
		WHERE config_name = 'record_online_date'";
	if ( !$db->sql_query($sql) )
	{
		message_die(GENERAL_ERROR, 'Could not update online user record (date)', '', __LINE__, __FILE__, $sql);
	}
}

if ( $total_online_users == 0 )
{
	$l_t_user_s = $lang['Online_users_zero_total'];
}
else if ( $total_online_users == 1 )
{
	$l_t_user_s = $lang['Online_user_total'];
}
else
{
	$l_t_user_s = $lang['Online_users_total'];
}

if ( $logged_visible_online == 0 )
{
	$l_r_user_s = $lang['Reg_users_zero_total'];
}
else if ( $logged_visible_online == 1 )
{
	$l_r_user_s = $lang['Reg_user_total'];
}
else
{
	$l_r_user_s = $lang['Reg_users_total'];
}

if ( $logged_hidden_online == 0 )
{
	$l_h_user_s = $lang['Hidden_users_zero_total'];
}
else if ( $logged_hidden_online == 1 )
{
	$l_h_user_s = $lang['Hidden_user_total'];
}
else
{
	$l_h_user_s = $lang['Hidden_users_total'];
}

if ( $guests_online == 0 )
{
	$l_g_user_s = $lang['Guest_users_zero_total'];
}
else if ( $guests_online == 1 )
{
	$l_g_user_s = $lang['Guest_user_total'];
}
else
{
	$l_g_user_s = $lang['Guest_users_total'];
}

$l_online_users = sprintf($l_t_user_s, $total_online_users);
$l_online_users .= sprintf($l_r_user_s, $logged_visible_online); 
$l_online_users .= sprintf($l_h_user_s, $logged_hidden_online); 
$l_online_users .= sprintf($l_g_user_s, $guests_online); 

//
// Obtain number of new private messages
// if user is logged in
//
if ( $userdata['session_logged_in'] )
{
	if ( $userdata['user_new_privmsg'] )
	{
		$l_message_new = ( $userdata['user_new_privmsg'] == 1 ) ? $lang['New_pm'] : $lang['New_pms']; 
		$l_privmsgs_text = sprintf($l_message_new, $userdata['user_new_privmsg']); 

		if ( $userdata['user_last_privmsg'] > $userdata['user_lastvisit'] )
		{
			$sql = "UPDATE " . USERS_TABLE . "
				SET user_last_privmsg = " . $userdata['user_lastvisit'] . " 
				WHERE user_id = " . $userdata['user_id'];
			if ( !$db->sql_query($sql) )
			{
				message_die(GENERAL_ERROR, 'Could not update private message new/read time for user', '', __LINE__, __FILE__, $sql);
			}

			$s_privmsg_new = 1;
			$icon_pm = $images['pm_new_msg'];
		}
		else
		{
			$s_privmsg_new = 0;
			$icon_pm = $images['pm_no_new_msg'];
		}
	}
	else
	{
		$l_privmsgs_text = $lang['No_new_pm'];

		$s_privmsg_new = 0;
		$icon_pm = $images['pm_no_new_msg'];
	}

	if ( $userdata['user_unread_privmsg'] )
	{
		$l_message_unread = ( $userdata['user_unread_privmsg'] == 1 ) ? $lang['Unread_pm'] : $lang['Unread_pms']; 
		$l_privmsgs_text_unread = sprintf($l_message_unread, $userdata['user_unread_privmsg']); 
	}
	else
	{
		$l_privmsgs_text_unread = $lang['No_unread_pm'];
	}
}
else
{
	$icon_pm = $images['pm_no_new_msg'];
	$l_privmsgs_text = $lang['Login_check_pm'];
	$l_privmsgs_text_unread = '';
	$s_privmsg_new = 0;
}

//
// Generate HTML required for Mozilla Navigation bar
//
$nav_links_html = '';
$nav_link_proto = '<link rel="%s" href="%s" title="%s" />' . "\n";
while( list($nav_item, $nav_array) = @each($nav_links) )
{
	if ( !empty($nav_array['url']) )
	{
		$nav_links_html .= sprintf($nav_link_proto, $nav_item, $nav_array['url'], $nav_array['title']);
	}
	else
	{
		// We have a nested array, used for items like <link rel='chapter'> that can occur more than once.
		while( list(,$nested_array) = each($nav_array) )
		{  
			$nav_links_html .= sprintf($nav_link_proto, $nav_item, $nested_array['url'], $nested_array['title']);
		}
	}
}	

//
// The following assigns all _common_ variables that may be used at any point
// in a template.
//
$template->assign_vars(array(
	'SITENAME' => $board_config['sitename'], 
	'SITE_DESCRIPTION' => $board_config['site_desc'], 
	'PAGE_TITLE' => $page_title,
	'LAST_VISIT_DATE' => sprintf($lang['You_last_visit'], $s_last_visit), 
	'CURRENT_TIME' => sprintf($lang['Current_time'], create_date($board_config['default_dateformat'], time(), $board_config['board_timezone'])),  
	'TOTAL_USERS_ONLINE' => $l_online_users,
	'LOGGED_IN_USER_LIST' => $online_userlist, 
	'RECORD_USERS' => sprintf($lang['Record_online_users'], $board_config['record_online_users'], create_date($board_config['default_dateformat'], $board_config['record_online_date'], $board_config['board_timezone'])),
	'PRIVATE_MESSAGE_INFO' => $l_privmsgs_text,
	'PRIVATE_MESSAGE_INFO_UNREAD' => $l_privmsgs_text_unread,
	'PRIVATE_MESSAGE_NEW_FLAG' => $s_privmsg_new, 

	'PRIVMSG_IMG' => $icon_pm,

	'L_USERNAME' => $lang['Username'], 
	'L_PASSWORD' => $lang['Password'], 
	'L_LOGIN_LOGOUT' => $l_login_logout, 
	'L_LOGIN' => $lang['Login'], 
	'L_LOG_ME_IN' => $lang['Log_me_in'], 
	'L_AUTO_LOGIN' => $lang['Log_me_in'], 
	'L_INDEX' => sprintf($lang['Forum_Index'], $board_config['sitename']), 
	'L_REGISTER' => $lang['Register'], 
	'L_PROFILE' => $lang['Profile'], 
	'L_SEARCH' => $lang['Search'], 
	'L_PRIVATEMSGS' => $lang['Private_Messages'], 
	'L_WHO_IS_ONLINE' => $lang['Who_is_Online'], 
	'L_MEMBERLIST' => $lang['Memberlist'], 
	'L_FAQ' => $lang['FAQ'], 
	'L_USERGROUPS' => $lang['Usergroups'], 
	'L_SEARCH_NEW' => $lang['Search_new'], 
	'L_SEARCH_UNANSWERED' => $lang['Search_unanswered'], 
	'L_SEARCH_SELF' => $lang['Search_your_posts'], 
	'L_WHOSONLINE_ADMIN' => sprintf($lang['Admin_online_color'], '<span style="color:#' . $theme['fontcolor3'] . '">', '</span>'), 
	'L_WHOSONLINE_MOD' => sprintf($lang['Mod_online_color'], '<span style="color:#' . $theme['fontcolor2'] . '">', '</span>'), 

	'U_SEARCH_UNANSWERED' => append_sid('search.'.$phpEx.'?search_id=unanswered'),
	'U_SEARCH_SELF' => append_sid('search.'.$phpEx.'?search_id=egosearch'), 
	'U_SEARCH_NEW' => append_sid('search.'.$phpEx.'?search_id=newposts'), 
	'U_INDEX' => append_sid('index.'.$phpEx),
	'U_REGISTER' => append_sid('profile.'.$phpEx.'?mode=register'),
	'U_PROFILE' => append_sid('profile.'.$phpEx.'?mode=editprofile'),
	'U_PRIVATEMSGS' => append_sid('privmsg.'.$phpEx.'?folder=inbox'), 
	'U_PRIVATEMSGS_POPUP' => append_sid('privmsg.'.$phpEx.'?mode=newpm'), 
	'U_SEARCH' => append_sid('search.'.$phpEx),
	'U_MEMBERLIST' => append_sid('memberlist.'.$phpEx), 
	'U_MODCP' => append_sid('modcp.'.$phpEx), 
	'U_FAQ' => append_sid('faq.'.$phpEx),
	'U_VIEWONLINE' => append_sid('viewonline.'.$phpEx),
	'U_LOGIN_LOGOUT' => append_sid($u_login_logout),
	'U_MEMBERSLIST' => append_sid('memberlist.'.$phpEx),
	'U_GROUP_CP' => append_sid('groupcp.'.$phpEx),

	'S_CONTENT_DIRECTION' => $lang['DIRECTION'], 
	'S_CONTENT_ENCODING' => $lang['ENCODING'], 
	'S_CONTENT_DIR_LEFT' => $lang['LEFT'], 
	'S_CONTENT_DIR_RIGHT' => $lang['RIGHT'], 
	'S_TIMEZONE' => sprintf($lang['All_times'], $lang[$board_config['board_timezone']]),
	'S_LOGIN_ACTION' => append_sid('login.'.$phpEx),

	'T_HEAD_STYLESHEET' => $theme['head_stylesheet'],
	'T_BODY_BACKGROUND' => $theme['body_background'],
	'T_BODY_BGCOLOR' => '#'.$theme['body_bgcolor'],
	'T_BODY_TEXT' => '#'.$theme['body_text'],
	'T_BODY_LINK' => '#'.$theme['body_link'],
	'T_BODY_VLINK' => '#'.$theme['body_vlink'],
	'T_BODY_ALINK' => '#'.$theme['body_alink'],
	'T_BODY_HLINK' => '#'.$theme['body_hlink'],
	'T_TR_COLOR1' => '#'.$theme['tr_color1'],
	'T_TR_COLOR2' => '#'.$theme['tr_color2'],
	'T_TR_COLOR3' => '#'.$theme['tr_color3'],
	'T_TR_CLASS1' => $theme['tr_class1'],
	'T_TR_CLASS2' => $theme['tr_class2'],
	'T_TR_CLASS3' => $theme['tr_class3'],
	'T_TH_COLOR1' => '#'.$theme['th_color1'],
	'T_TH_COLOR2' => '#'.$theme['th_color2'],
	'T_TH_COLOR3' => '#'.$theme['th_color3'],
	'T_TH_CLASS1' => $theme['th_class1'],
	'T_TH_CLASS2' => $theme['th_class2'],
	'T_TH_CLASS3' => $theme['th_class3'],
	'T_TD_COLOR1' => '#'.$theme['td_color1'],
	'T_TD_COLOR2' => '#'.$theme['td_color2'],
	'T_TD_COLOR3' => '#'.$theme['td_color3'],
	'T_TD_CLASS1' => $theme['td_class1'],
	'T_TD_CLASS2' => $theme['td_class2'],
	'T_TD_CLASS3' => $theme['td_class3'],
	'T_FONTFACE1' => $theme['fontface1'],
	'T_FONTFACE2' => $theme['fontface2'],
	'T_FONTFACE3' => $theme['fontface3'],
	'T_FONTSIZE1' => $theme['fontsize1'],
	'T_FONTSIZE2' => $theme['fontsize2'],
	'T_FONTSIZE3' => $theme['fontsize3'],
	'T_FONTCOLOR1' => '#'.$theme['fontcolor1'],
	'T_FONTCOLOR2' => '#'.$theme['fontcolor2'],
	'T_FONTCOLOR3' => '#'.$theme['fontcolor3'],
	'T_SPAN_CLASS1' => $theme['span_class1'],
	'T_SPAN_CLASS2' => $theme['span_class2'],
	'T_SPAN_CLASS3' => $theme['span_class3'],
	
	'NAV_LINKS' => $nav_links_html)
);

//
// Login box?
//
if ( !$userdata['session_logged_in'] )
{
	$template->assign_block_vars('switch_user_logged_out', array());
}
else
{
	$template->assign_block_vars('switch_user_logged_in', array());

	if ( !empty($userdata['user_popup_pm']) )
	{
		$template->assign_block_vars('switch_enable_pm_popup', array());
	}
}

header ('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
header ('Expires: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');

$template->pparse('overall_header');

?>