<?php /* Copyright 2002 Tino Didriksen <td@projectjj.dk> */

/*
* File: /_inc/chat.php
* Description:
*		This file control everything regarding actual chatting.
*		It is included from a chat.
*/

	require_once('_inc/inc.php');

	require_once('_inc/data/chattheme.default');
	if (isset($GLOBALS['chat']['theme']) && file_exists("_inc/data/chattheme.{$GLOBALS['chat']['theme']}"))
		include_once("_inc/data/chattheme.{$GLOBALS['chat']['theme']}");

	if (empty($_SESSION['chats'][$GLOBALS['id']]['username']) && ($_REQUEST['a'] != 'logout')
		&& !empty($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['autologin'])
		&& !empty($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['handle'])
		&& empty($_REQUEST['handle']) && empty($_REQUEST['password']))
	{
		$_REQUEST['handle']		= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['handle'];
		$_REQUEST['password']	= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['password'];
		$_REQUEST['prefs']['symbol'] = $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['symbol'];
		$_REQUEST['prefs']['reload'] = $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['reload'];
		$_REQUEST['prefs']['image']	= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['image'];
		$_REQUEST['prefs']['color']	= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['color'];
		$_REQUEST['prefs']['link']	= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['link'];
		$_REQUEST['prefs']['icon']	= $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['icon'];
		$_REQUEST['autologin']	= 1;
	}

	if (!empty($_REQUEST['handle']))
		CheckLogin($_REQUEST['handle'], $_REQUEST['password'], $GLOBALS['id']);
	$_SESSION['chats'][$GLOBALS['id']]['oldname'] = $_SESSION['chats'][$GLOBALS['id']]['username'];

	if (!empty($_SESSION['chats'][$GLOBALS['id']]['username']) && ($_REQUEST['p'] == 'login') && ($_REQUEST['a'] != 'logout')) {
		$_REQUEST['message']	= '/enter';
		$_REQUEST['p']			= 'console';
	}

	if (CheckBan()) {
		echo PrettyParse($GLOBALS['chattheme']['banpage']);
		die();
	} else if (!CheckMemberOfChat() && CheckFlags($GLOBALS['chat']['flags'], 'R')) {
		echo PrettyParse($GLOBALS['chattheme']['notamember']);
		die();
	} else if ( !(empty($GLOBALS['chat']['write_access']) || CheckFlags('*', $GLOBALS['chat']['write_access'].'M'))
		&& (!empty($GLOBALS['chat']['read_access']) && !CheckFlags('*', $GLOBALS['chat']['read_access'].'M')) ) {
		echo PrettyParse($GLOBALS['chattheme']['notaccess']);
		die();
	}

	if ($_REQUEST['prefs']['reload']) {
		$_REQUEST['prefs']['symbol']	= PChoose($_SESSION['chats'][$GLOBALS['id']]['saved']['symbol'], $_REQUEST['prefs']['symbol']);
		$_REQUEST['prefs']['image']	= PChoose($_SESSION['chats'][$GLOBALS['id']]['saved']['image'], $_REQUEST['prefs']['image']);
		$_REQUEST['prefs']['icon']	= PChoose($_SESSION['chats'][$GLOBALS['id']]['saved']['icon'], $_REQUEST['prefs']['icon']);
		$_REQUEST['prefs']['link']	= PChoose($_SESSION['chats'][$GLOBALS['id']]['saved']['link'], $_REQUEST['prefs']['link']);
		$_REQUEST['prefs']['color']	= PChoose($_SESSION['chats'][$GLOBALS['id']]['saved']['color'], $_REQUEST['prefs']['color']);
	}

	if (is_array($_REQUEST['prefs'])) {
		$uid = $_SESSION['chats'][$GLOBALS['id']]['id'] ? $_SESSION['chats'][$GLOBALS['id']]['id'] : $_SESSION['chats'][0]['id'];
		if (!empty($uid)) {
			$do = array();
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['status'] != $_REQUEST['prefs']['status']) {
				if (empty($_REQUEST['prefs']['status']))
					$do[] = 'visual_status=null';
				else
					$do[] = "visual_status='".SQL_EscapeString($_REQUEST['prefs']['status'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['status'] = $_REQUEST['prefs']['status'];
			}
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['symbol'] != $_REQUEST['prefs']['symbol']) {
				if (empty($_REQUEST['prefs']['symbol']))
					$do[] = 'visual_symbol=null';
				else
					$do[] = "visual_symbol='".SQL_EscapeString($_REQUEST['prefs']['symbol'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['symbol'] = $_REQUEST['prefs']['symbol'];
			}
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['image'] != $_REQUEST['prefs']['image']) {
				if (empty($_REQUEST['prefs']['image']))
					$do[] = 'visual_image=null';
				else
					$do[] = "visual_image='".SQL_EscapeString($_REQUEST['prefs']['image'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['image'] = $_REQUEST['prefs']['image'];
			}
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['link'] != $_REQUEST['prefs']['link']) {
				if (empty($_REQUEST['prefs']['link']))
					$do[] = 'visual_link=null';
				else
					$do[] = "visual_link='".SQL_EscapeString($_REQUEST['prefs']['link'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['link'] = $_REQUEST['prefs']['link'];
			}
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['icon'] != $_REQUEST['prefs']['icon']) {
				if (empty($_REQUEST['prefs']['icon']))
					$do[] = 'visual_icon=null';
				else
					$do[] = "visual_icon='".SQL_EscapeString($_REQUEST['prefs']['icon'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['icon'] = $_REQUEST['prefs']['icon'];
			}
			if ($_SESSION['chats'][$GLOBALS['id']]['saved']['color'] != $_REQUEST['prefs']['color']) {
				if (empty($_REQUEST['prefs']['color']))
					$do[] = 'visual_color=null';
				else
					$do[] = "visual_color='".SQL_EscapeString($_REQUEST['prefs']['color'])."'";
				$_SESSION['chats'][$GLOBALS['id']]['saved']['color'] = $_REQUEST['prefs']['color'];
			}
			if (!empty($do)) {
				$do = implode(',', $do);
				$sqlchat = $GLOBALS['id']+0;
				if (!empty($GLOBALS['chat']['parent']))
					$sqlchat = $GLOBALS['chat']['parent']+0;
				SQL_EmptyQuery("UPDATE {$GLOBALS['sql_prefix']}userassoc SET {$do} WHERE id={$uid} AND chat={$sqlchat}", __FILE__.' : '.__LINE__.' : '.__FUNCTION__);
			}
		}

		foreach($_REQUEST['prefs'] as $key => $val)
			$_SESSION['chats'][$GLOBALS['id']][$key] = $val;
	}

	$_SESSION['chats'][$GLOBALS['id']]['style'] = PChoose($_SESSION['chats'][$GLOBALS['id']]['style'], $_SESSION['chats'][0]['style']);
	if (!is_array($_REQUEST['style']))
		$_REQUEST['style'] = array();
	if (!empty($_REQUEST['message']) || count($_REQUEST['style'])) {
		$old = $_SESSION['chats'][$GLOBALS['id']]['style'];
		$_SESSION['chats'][$GLOBALS['id']]['style'] = '';
		foreach($_REQUEST['style'] as $key => $val) {
			switch($key) {
				case 'strike':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'S';
					break;
				case 'bold':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'B';
					break;
				case 'italic':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'I';
					break;
				case 'underlined':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'U';
					break;
				case 'fixed':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'T';
					break;
				case 'reverse':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'R';
					break;
				case 'no_color':
					$_SESSION['chats'][$GLOBALS['id']]['style'] .= 'C';
					break;
			}
		}
		$uid = $_SESSION['chats'][$GLOBALS['id']]['id'] ? $_SESSION['chats'][$GLOBALS['id']]['id'] : $_SESSION['chats'][0]['id'];
		if ($uid && strcmp($old,$_SESSION['chats'][$GLOBALS['id']]['style'])) {
			if (!empty($_SESSION['chats'][$GLOBALS['id']]['style']))
				$style = "'".SQL_EscapeString($_SESSION['chats'][$GLOBALS['id']]['style'])."'";
			else
				$style = 'null';
			SQL_EmptyQuery("UPDATE {$GLOBALS['sql_prefix']}users SET style={$style} WHERE id={$uid}", __FILE__.' : '.__LINE__.' : '.__FUNCTION__);
		}
	}

	$_SESSION['chats'][$GLOBALS['id']]['lasthit'] = time();

	if (isset($_REQUEST['chan'])) {
		$_SESSION['chats'][$GLOBALS['id']]['chan'] = $_REQUEST['chan'];
	}
	$cx = count($GLOBALS['chan']);
	$found = false;
	for ($cc=0;$cc<$cx;$cc++) {
		if ($GLOBALS['chan'][$cc]['id'] == $_SESSION['chats'][$GLOBALS['id']]['chan']) {
			if (!empty($GLOBALS['chan'][$cc]['read_access']) && !CheckFlags('*', $GLOBALS['chan'][$cc]['read_access'].'M'))
				continue;
			if (!(empty($GLOBALS['chan'][$cc]['write_access']) || CheckFlags('*', $GLOBALS['chan'][$cc]['write_access'].'M')))
				continue;
			$found = true;
			break;
		}
	}
	if (!$found)
		$_SESSION['chats'][$GLOBALS['id']]['chan'] = 0;

	// Remove expired ignores.
	if (is_array($_SESSION['chats'][$GLOBALS['id']]['ignore'])) {
		$time = time();
		$cnt = count($_SESSION['chats'][$GLOBALS['id']]['ignore']);
		$found = false;
		for($cc=0;$cc<$cnt;$cc++) {
			if ($_SESSION['chats'][$GLOBALS['id']]['ignore'][$cc]['expire'] <= $time) {
				unset($_SESSION['chats'][$GLOBALS['id']]['ignore'][$cc]);
				$found = true;
			}
		}
		if ($found)
			sort($_SESSION['chats'][$GLOBALS['id']]['ignore']);
	} else {
		$_SESSION['chats'][$GLOBALS['id']]['ignore'] = array();
	}

	$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['setcookie'] = true;
	$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['lasthit'] = ceil(time()/86400)*86400;
	if (is_array($_REQUEST['prefs'])) {
		foreach($_REQUEST['prefs'] as $key => $val)
			$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']][$key] = $val;
	}
	$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['handle'] = PChoose($_REQUEST['handle'], $_SESSION['chats'][$GLOBALS['id']]['username'], $_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['handle'], $_SESSION['chats'][0]['username']);
	if (!empty($_REQUEST['autologin'])) {
		$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['password'] = PChoose($_SESSION['chats'][$GLOBALS['id']]['password'], $_SESSION['chats'][0]['password']);
		$_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['autologin'] = 'CHECKED';
		if (empty($_REQUEST['prefs']['reload']))
			unset($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['reload']);
	} else if (!empty($_REQUEST['password'])) {
		unset($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['password']);
		unset($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['autologin']);
		unset($_COOKIE[$GLOBALS['chat_cookie_name']][$GLOBALS['id']]['reload']);
	}
	foreach($_COOKIE[$GLOBALS['chat_cookie_name']] as $key => $val) {
		if ($key == 0)
			continue;
		else if ($val['lasthit'] <= time()-2592000)
			unset($_COOKIE[$GLOBALS['chat_cookie_name']][$key]);
	}
	Cookie_Set();

	// Fix ident.
	/*
	if ($_SESSION['chats'][0]['id']) {
		$_SESSION['chats'][$GLOBALS['id']]['ident'] = md5($_SESSION['chats'][0]['id'].'c'.$GLOBALS['id']);
	} else if ($_SESSION['chats'][$GLOBALS['id']]['id']) {
		$_SESSION['chats'][$GLOBALS['id']]['ident'] = md5($_SESSION['chats'][$GLOBALS['id']]['id'].'c'.$GLOBALS['id']);
	} else {
		$_SESSION['chats'][$GLOBALS['id']]['ident'] = md5($_SESSION['session_id'].$GLOBALS['id']);
	}
	*/
	$_SESSION['chats'][$GLOBALS['id']]['ident'] = substr(md5($_SESSION['session_id'].$GLOBALS['id']), 0, 8);
	if ($GLOBALS['chat']['s_identlength'])
		$_SESSION['chats'][$GLOBALS['id']]['ident'] = substr($_SESSION['chats'][$GLOBALS['id']]['ident'], 0, $GLOBALS['chat']['s_identlength']);

	if ($_REQUEST['a'] == 'logout') {
		$_REQUEST['message'] = '/exit';
	}
	if (!empty($_REQUEST['message'])) {
		PostMessage();
	}

	if (!isset($_SESSION['chats'][$GLOBALS['id']]['noimg'])) {
		$_SESSION['chats'][$GLOBALS['id']]['noimg'] = CheckFlags($_SESSION['chats'][$GLOBALS['id']]['prefs'], 'i');
	}
	if (!empty($_REQUEST['noimg'])) {
		if ($_REQUEST['noimg'] == 'true')
			$_SESSION['chats'][$GLOBALS['id']]['noimg'] = true;
		else
			$_SESSION['chats'][$GLOBALS['id']]['noimg'] = false;
	}

	if (empty($_REQUEST['p'])) {
		echo PrettyParse($GLOBALS['chattheme']['index']);
	} else if (($_REQUEST['p'] == 'login') || ($_REQUEST['p'] == 'logout')) {
		echo PrettyParse($GLOBALS['chattheme']['login']);
	} else if ($_REQUEST['p'] == 'console') {
		echo PrettyParse($GLOBALS['chattheme']['console']);
	} else if ($_REQUEST['p'] == 'text') {
		echo PrettyParse($GLOBALS['chattheme']['textwindow']);
	} else if ($_REQUEST['p'] == 'userlist') {
		echo PrettyParse($GLOBALS['chattheme']['userlist']);
	} else if ($_REQUEST['p'] == 'css') {
		header('Content-Type: text/css');
		HeaderCache();
		echo PrettyParse($GLOBALS['chat']['s_css']);
		header('Content-Type: text/css');
	} else if (preg_match('/^user[0-9]+$/', $_REQUEST['p'])) {
		if ($GLOBALS['chattheme'][$_REQUEST['p']])
			echo PrettyParse($GLOBALS['chattheme'][$_REQUEST['p']]);
	}

	echo PrettyParse(ob_get_clean());
?>