mirror of
https://github.com/worldforge/cyphesis
synced 2026-08-13 12:26:04 -04:00
e85f0831b2
Classes under "rulesets" have been moved to "rules", and split up into futher subdirectories matching their library. As a result we can now better separate the python bindings, so that things that belongs to the simulation are separeted from things that belongs to the ai.
438 lines
14 KiB
C++
438 lines
14 KiB
C++
// Cyphesis Online RPG Server and AI Engine
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// Copyright (C) 2000-2006 Alistair Riddoch
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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#include "Connection.h"
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#include "ServerRouting.h"
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#include "Lobby.h"
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#include "Player.h"
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#include "ExternalMindsConnection.h"
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#include "ExternalMindsManager.h"
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#include "rules/simulation/ExternalMind.h"
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#include "common/id.h"
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#include "common/debug.h"
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#include "common/operations/Update.h"
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#include "common/Inheritance.h"
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#include "common/system.h"
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#include "common/TypeNode.h"
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#include "common/log.h"
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#include "common/compose.hpp"
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#include <Atlas/Objects/Anonymous.h>
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#include <Atlas/Objects/Operation.h>
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#include <sigc++/adaptors/bind.h>
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#include <algorithm>
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using Atlas::Message::Element;
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using Atlas::Objects::Root;
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using Atlas::Objects::Operation::Info;
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using Atlas::Objects::Operation::Move;
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using Atlas::Objects::Operation::Update;
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using Atlas::Objects::Entity::Anonymous;
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using String::compose;
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static const bool debug_flag = false;
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Connection::Connection(CommSocket & socket,
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ServerRouting & svr,
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const std::string & addr,
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const std::string & id, long iid) :
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Link(socket, id, iid), m_server(svr)
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{
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m_server.incClients();
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logEvent(CONNECT, String::compose("%1 - - Connect from %2", id, addr));
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}
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Connection::~Connection()
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{
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debug(std::cout << "destroy called" << std::endl << std::flush;);
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logEvent(DISCONNECT, String::compose("%1 - - Disconnect", getId()));
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//It's important that we disconnect ourselves as a possession router before we disconnect our objects,
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//else there's a risk that the external minds manager will just issue new possession request to this connection.
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for (auto& routerId : m_possessionRouters) {
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ExternalMindsManager::instance().removeConnection(routerId);
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}
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for (auto& entry : m_connectableRouters) {
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disconnectObject(entry.second, "Disconnect");
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}
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m_server.decClients();
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}
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Account * Connection::newAccount(const std::string & type,
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const std::string & username,
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const std::string & hash,
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const std::string & id, long intId)
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{
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return new Player(this, username, hash, id, intId);
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}
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static const int hash_salt_size = 8;
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Account * Connection::addNewAccount(const std::string & type,
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const std::string & username,
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const std::string & password)
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{
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std::string hash;
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std::string salt = m_server.getShaker().generateSalt(hash_salt_size);
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hash_password(password,salt,hash);
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std::string newAccountId;
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long intId = newId(newAccountId);
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if (intId < 0) {
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log(ERROR, "Account creation failed as no ID available");
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return nullptr;
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}
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Account * account = newAccount(type, username, hash, newAccountId, intId);
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if (account == nullptr) {
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return nullptr;
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}
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addConnectableRouter(account);
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assert(account->getConnection() == this);
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m_server.addAccount(account);
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m_server.m_lobby.addAccount(account);
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return account;
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}
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/// \brief Remove an object from this connection.
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///
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/// The object being removed may be a player, or another type of object such
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/// as an avatar.
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void Connection::disconnectObject(ConnectableRouter* router,
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const std::string & event)
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{
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m_server.m_lobby.removeAccount(router);
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router->setConnection(nullptr);
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m_connectableRouters.erase(router->getIntId());
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removeObject(router->getIntId());
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}
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void Connection::setPossessionEnabled(bool enabled, const std::string& routerId)
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{
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if (enabled) {
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ExternalMindsConnection connection(this, routerId);
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auto result = ExternalMindsManager::instance().addConnection(connection);
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if (result == 0) {
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m_possessionRouters.push_back(routerId);
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}
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} else {
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auto result = std::find(m_possessionRouters.begin(), m_possessionRouters.end(), routerId);
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if (result != m_possessionRouters.end()) {
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ExternalMindsManager::instance().removeConnection(routerId);
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}
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}
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}
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void Connection::addObject(Router * obj)
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{
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m_objects[obj->getIntId()] = obj;
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}
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void Connection::addConnectableRouter(ConnectableRouter * obj) {
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obj->setConnection(this);
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addObject(obj);
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m_connectableRouters[obj->getIntId()] = obj;
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}
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void Connection::removeObject(long id)
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{
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m_objects.erase(id);
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}
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int Connection::verifyCredentials(const Account & account,
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const Root & creds) const
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{
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Element passwd_attr;
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if (creds->copyAttr("password", passwd_attr) != 0 || !passwd_attr.isString()) {
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return -1;
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}
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const std::string & passwd = passwd_attr.String();
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return check_password(passwd, account.password());
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}
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void Connection::externalOperation(const Operation & op, Link & link)
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{
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debug(std::cout << "Connection::externalOperation"
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<< std::endl << std::flush;);
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if (op->isDefaultFrom()) {
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debug(std::cout << "deliver locally" << std::endl << std::flush;);
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OpVector reply;
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long serialno = op->getSerialno();
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operation(op, reply);
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if (!reply.empty()) {
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for(auto& replyOp : reply) {
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if (!op->isDefaultSerialno()) {
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// Should we respect existing refnos?
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if (replyOp->isDefaultRefno()) {
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replyOp->setRefno(serialno);
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}
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}
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}
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// FIXME detect socket failure here
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send(reply);
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}
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return;
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}
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const std::string & from = op->getFrom();
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debug(std::cout << "send on to " << from << std::endl << std::flush;);
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RouterMap::const_iterator I = m_objects.find(integerId(from));
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if (I == m_objects.end()) {
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sendError(op, String::compose("Client \"%1\" op from \"%2\" is from "
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"non-existant object.",
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op->getParent(), from), from);
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return;
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}
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I->second->externalOperation(op, link);
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}
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void Connection::operation(const Operation & op, OpVector & res)
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{
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debug(std::cout << "Connection::operation" << std::endl << std::flush;);
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auto op_no = op->getClassNo();
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switch (op_no) {
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case Atlas::Objects::Operation::CREATE_NO:
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CreateOperation(op, res);
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break;
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case Atlas::Objects::Operation::GET_NO:
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GetOperation(op, res);
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break;
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case Atlas::Objects::Operation::LOGIN_NO:
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LoginOperation(op, res);
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break;
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case Atlas::Objects::Operation::LOGOUT_NO:
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LogoutOperation(op, res);
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break;
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case OP_INVALID:
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break;
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default:
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std::string parent = op->getParent().empty() ? "-" : op->getParent();
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error(op, String::compose("Unknown operation %1 in Connection", parent), res);
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break;
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}
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}
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void Connection::LoginOperation(const Operation & op, OpVector & res)
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{
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debug(std::cout << "Got login op" << std::endl << std::flush;);
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const std::vector<Root> & args = op->getArgs();
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if (args.empty()) {
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error(op, "Login has no argument", res);
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return;
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}
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// Account should be the first argument of the op
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const Root & arg = args.front();
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// Check for username, and if its not there, then check for
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// id in case we are dealing with an old client.
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Element user_attr;
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std::string username;
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if (arg->copyAttr("username", user_attr) != 0 || !user_attr.isString()) {
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log(WARNING, "Got Login for account with no username. Checking for old style Login.");
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if (!arg->hasAttrFlag(Atlas::Objects::ID_FLAG)) {
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error(op, "Got account Login with no username.", res);
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return;
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}
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username = arg->getId();
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} else {
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username = user_attr.String();
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}
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if (username.empty()) {
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error(op, "Empty username provided for Login", res);
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return;
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}
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// We now have username, so can check whether we know this
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// account, either from existing account ....
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Account * account = m_server.getAccountByName(username);
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// or if not, from the database
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if (account == nullptr || verifyCredentials(*account, arg) != 0) {
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clientError(op, "Login is invalid", res);
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return;
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}
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// Account appears to be who they say they are
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if (account->getConnection()) {
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// Internals don't allow player to log in more than once.
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clientError(op, "This account is already logged in", res);
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return;
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}
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// Connect everything up
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addConnectableRouter(account);
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m_server.m_lobby.addAccount(account);
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// Let the client know they have logged in
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Info info;
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Anonymous info_arg;
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account->addToEntity(info_arg);
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info->setArgs1(info_arg);
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debug(std::cout << "Good login" << std::endl << std::flush;);
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res.push_back(info);
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logEvent(LOGIN, String::compose("%1 %2 - Login account %3 (%4)",
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getId(), account->getId(), username,
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account->getType()));
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}
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void Connection::CreateOperation(const Operation & op, OpVector & res)
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{
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debug(std::cout << "Got create op" << std::endl << std::flush;);
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if (!m_objects.empty()) {
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clientError(op, "This connection is already logged in", res);
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return;
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}
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const std::vector<Root> & args = op->getArgs();
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if (args.empty()) {
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error(op, "Create has no argument", res);
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return;
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}
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const Root & arg = args.front();
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if (restricted_flag) {
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error(op, "Account creation on this server is restricted", res);
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return;
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}
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Element user_attr;
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std::string username;
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if (arg->copyAttr("username", user_attr) != 0 || !user_attr.isString()) {
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error(op, "Got account Create with no username.", res);
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return;
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} else {
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username = user_attr.String();
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}
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Element passwd_attr;
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if (arg->copyAttr("password", passwd_attr) != 0 || !passwd_attr.isString()) {
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error(op, "No account password given", res);
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return;
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}
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const std::string & password = passwd_attr.String();
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if (username.empty() || password.empty() ||
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(nullptr != m_server.getAccountByName(username))) {
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// Account exists, or creation data is duff
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clientError(op, "Account creation is invalid", res);
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return;
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}
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std::string type("player");
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if (!arg->isDefaultParent()) {
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type = arg->getParent();
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}
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Account * account = addNewAccount(type, username, password);
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if (account == nullptr) {
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clientError(op, "Account creation failed", res);
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return;
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}
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Info info;
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Anonymous info_arg;
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account->addToEntity(info_arg);
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info->setArgs1(info_arg);
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debug(std::cout << "Good create" << std::endl << std::flush;);
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res.push_back(info);
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logEvent(LOGIN, String::compose("%1 %2 - Create account %3 (%4)",
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getId(),
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account->getId(),
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username,
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account->getType()));
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}
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void Connection::LogoutOperation(const Operation & op, OpVector & res)
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{
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const std::vector<Root> & args = op->getArgs();
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if (args.empty()) {
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// Logging self out
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Info info;
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info->setArgs1(op);
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if (!op->isDefaultSerialno()) {
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info->setRefno(op->getSerialno());
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}
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send(info);
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disconnect();
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return;
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}
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const Root & arg = args.front();
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if (!arg->hasAttrFlag(Atlas::Objects::ID_FLAG)) {
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error(op, "Got logout for entity with no ID", res);
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return;
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}
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const long obj_id = integerId(arg->getId());
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if (obj_id == -1) {
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error(op, "Got logout for non numeric entity ID", res);
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return;
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}
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auto I = m_connectableRouters.find(obj_id);
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if (I == m_connectableRouters.end()) {
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error(op, String::compose("Got logout for unknown entity ID(%1)",
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obj_id),
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res);
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return;
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}
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disconnectObject(I->second, "Logout");
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Info info;
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info->setArgs1(op);
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if (!op->isDefaultSerialno()) {
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info->setRefno(op->getSerialno());
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}
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res.push_back(info);
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}
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void Connection::GetOperation(const Operation & op, OpVector & res)
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{
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const std::vector<Root> & args = op->getArgs();
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Info info;
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if (args.empty()) {
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Anonymous info_arg;
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m_server.addToEntity(info_arg);
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info->setArgs1(info_arg);
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debug(std::cout << "Replying to empty get" << std::endl << std::flush;);
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} else {
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const Root & arg = args.front();
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if (!arg->hasAttrFlag(Atlas::Objects::ID_FLAG)) {
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error(op, "Type definition requested with no id", res);
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return;
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}
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const std::string & id = arg->getId();
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debug(std::cout << "Get got for " << id << std::endl << std::flush;);
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Atlas::Objects::Root o = Inheritance::instance().getClass(id, Visibility::PUBLIC);
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if (!o.isValid()) {
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error(op, String::compose("Unknown type definition for \"%1\" "
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"requested", id),
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res);
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return;
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}
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info->setArgs1(o);
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}
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res.push_back(info);
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}
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