//////////////////////////////////////////////////////////////////////////////////////
// akashi - a server for Attorney Online 2 //
// Copyright (C) 2020 scatterflower //
// //
// This program is free software: you can redistribute it and/or modify //
// it under the terms of the GNU Affero General Public License as //
// published by the Free Software Foundation, either version 3 of the //
// License, or (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU Affero General Public License for more details. //
// //
// You should have received a copy of the GNU Affero General Public License //
// along with this program. If not, see <https://www.gnu.org/licenses/>. //
//////////////////////////////////////////////////////////////////////////////////////
#include "include/server.h"
Server::Server(int p_port, int p_ws_port, QObject* parent) :
QObject(parent),
player_count(0),
port(p_port),
ws_port(p_ws_port)
{
server = new QTcpServer(this);
connect(server, SIGNAL(newConnection()), this, SLOT(clientConnected()));
timer = new QTimer();
db_manager = new DBManager();
}
void Server::start()
{
QSettings config("config/config.ini", QSettings::IniFormat);
config.beginGroup("Options");
QString bind_ip = config.value("ip", "all").toString();
QHostAddress bind_addr;
if (bind_ip == "all")
bind_addr = QHostAddress::Any;
else
bind_addr = QHostAddress(bind_ip);
if (bind_addr.protocol() != QAbstractSocket::IPv4Protocol && bind_addr.protocol() != QAbstractSocket::IPv6Protocol && bind_addr != QHostAddress::Any) {
qDebug() << bind_ip << "is an invalid IP address to listen on! Server not starting, check your config.";
}
if (!server->listen(bind_addr, port)) {
qDebug() << "Server error:" << server->errorString();
}
else {
qDebug() << "Server listening on" << port;
}
loadServerConfig();
loadCommandConfig();
maximum_statements = config.value("maximum_statements", 50).toInt();
proxy = new WSProxy(port, ws_port, this);
if(ws_port != -1)
proxy->start();
QFile char_list("config/characters.txt");
char_list.open(QIODevice::ReadOnly | QIODevice::Text);
while (!char_list.atEnd()) {
characters.append(char_list.readLine().trimmed());
}
char_list.close();
QFile music_file("config/music.txt");
music_file.open(QIODevice::ReadOnly | QIODevice::Text);
while (!music_file.atEnd()) {
music_list.append(music_file.readLine().trimmed());
}
music_file.close();
if(music_list[0].contains(".")) // Add a default category if none exists
music_list.insert(0, "==Music==");
QFile bg_file("config/backgrounds.txt");
bg_file.open(QIODevice::ReadOnly | QIODevice::Text);
while (!bg_file.atEnd()) {
backgrounds.append(bg_file.readLine().trimmed());
}
bg_file.close();
QSettings areas_ini("config/areas.ini", QSettings::IniFormat);
area_names = areas_ini.childGroups(); // invisibly does a lexicographical sort, because Qt is great like that
std::sort(area_names.begin(), area_names.end(), [] (const QString &a, const QString &b) {return a.split(":")[0].toInt() < b.split(":")[0].toInt();});
QStringList sanitized_area_names;
QStringList raw_area_names = area_names;
for (QString area_name : area_names) {
QStringList name_split = area_name.split(":");
name_split.removeFirst();
QString area_name_sanitized = name_split.join(":");
sanitized_area_names.append(area_name_sanitized);
}
area_names = sanitized_area_names;
for (int i = 0; i < raw_area_names.length(); i++) {
QString area_name = raw_area_names[i];
areas.insert(i, new AreaData(area_name, i));
}
}
void Server::clientConnected()
{
QTcpSocket* socket = server->nextPendingConnection();
int user_id;
QList<int> user_ids;
for (AOClient* client : clients) {
user_ids.append(client->id);
}
for (user_id = 0; user_id <= player_count; user_id++) {
if (user_ids.contains(user_id))
continue;
else
break;
}
AOClient* client = new AOClient(this, socket, this, user_id);
if (db_manager->isIPBanned(socket->peerAddress())) {
AOPacket ban_reason("BD", {db_manager->getBanReason(socket->peerAddress())});
socket->write(ban_reason.toUtf8());
socket->flush();
client->deleteLater();
socket->close();
return;
}
clients.append(client);
connect(socket, &QTcpSocket::disconnected, client,
&AOClient::clientDisconnected);
connect(socket, &QTcpSocket::disconnected, this, [=] {
clients.removeAll(client);
client->deleteLater();
});
connect(socket, &QTcpSocket::readyRead, client, &AOClient::clientData);
AOPacket decryptor("decryptor", {"NOENCRYPT"}); // This is the infamous workaround for
// tsuserver4. It should disable fantacrypt
// completely in any client 2.4.3 or newer
client->sendPacket(decryptor);
client->calculateIpid();
#ifdef NET_DEBUG
qDebug() << client->remote_ip.toString() << "connected";
#endif
}
void Server::updateCharsTaken(AreaData* area)
{
QStringList chars_taken;
for (QString cur_char : characters) {
chars_taken.append(area->characters_taken.contains(getCharID(cur_char))
? QStringLiteral("-1")
: QStringLiteral("0"));
}
AOPacket response_cc("CharsCheck", chars_taken);
broadcast(response_cc, area->index);
}
void Server::broadcast(AOPacket packet, int area_index)
{
for (AOClient* client : clients) {
if (client->current_area == area_index)
client->sendPacket(packet);
}
}
void Server::broadcast(AOPacket packet)
{
for (AOClient* client : clients) {
client->sendPacket(packet);
}
}
QList<AOClient*> Server::getClientsByIpid(QString ipid)
{
QList<AOClient*> return_clients;
for (AOClient* client : clients) {
if (client->getIpid() == ipid)
return_clients.append(client);
}
return return_clients;
}
AOClient* Server::getClientByID(int id)
{
for (AOClient* client : clients) {
if (client->id == id)
return client;
}
return nullptr;
}
int Server::getCharID(QString char_name)
{
for (QString character : characters) {
if (character.toLower() == char_name.toLower()) {
return characters.indexOf(QRegExp(character, Qt::CaseInsensitive));
}
}
return -1; // character does not exist
}
void Server::loadCommandConfig()
{
magic_8ball_answers = (loadConfigFile("8ball"));
praise_list = (loadConfigFile("praise"));
reprimands_list = (loadConfigFile("reprimands"));
gimp_list = (loadConfigFile("gimp"));
}
QStringList Server::loadConfigFile(QString filename)
{
QStringList stringlist;
QFile file("config/text/" + filename + ".txt");
file.open(QIODevice::ReadOnly | QIODevice::Text);
while (!(file.atEnd())) {
stringlist.append(file.readLine().trimmed());
}
file.close();
return stringlist;
}
void Server::loadServerConfig()
{
QSettings config("config/config.ini", QSettings::IniFormat);
config.beginGroup("Options");
//Load config.ini values
max_players = config.value("max_players","100").toString();
server_name = config.value("server_name","An Unnamed Server").toString();
server_desc = config.value("server_description","This is a placeholder server description. Tell the world of AO who you are here!").toString();
MOTD = config.value("motd","MOTD is not set.").toString();
auth_type = config.value("auth","simple").toString();
modpass = config.value("modpass","").toString();
bool zalgo_tolerance_conversion_success;
zalgo_tolerance = config.value("zalgo_tolerance", "3").toInt(&zalgo_tolerance_conversion_success);
if (!zalgo_tolerance_conversion_success)
zalgo_tolerance = 3;
config.endGroup();
//Load dice values
config.beginGroup("Dice");
dice_value = config.value("value_type", "100").toInt();
max_dice = config.value("max_dice","100").toInt();
config.endGroup();
}
Server::~Server()
{
for (AOClient* client : clients) {
client->deleteLater();
}
server->deleteLater();
proxy->deleteLater();
delete db_manager;
}