Files
openttd/src/network/network_admin.cpp
Michael Lutz a05fd7aa50 Change: [Network] Transfer command data as serialized byte stream without fixed structure.
The data will be transmitted as the length followed by the serialized data. This allows the command
data to be different for every command type in the future.
2021-12-16 22:28:32 +01:00

1027 lines
33 KiB
C++

/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file network_admin.cpp Server part of the admin network protocol. */
#include "../stdafx.h"
#include "../strings_func.h"
#include "../date_func.h"
#include "core/game_info.h"
#include "network_admin.h"
#include "network_base.h"
#include "network_server.h"
#include "../command_func.h"
#include "../company_base.h"
#include "../console_func.h"
#include "../core/pool_func.hpp"
#include "../map_func.h"
#include "../rev.h"
#include "../game/game.hpp"
#include "../safeguards.h"
/* This file handles all the admin network commands. */
/** Redirection of the (remote) console to the admin. */
AdminIndex _redirect_console_to_admin = INVALID_ADMIN_ID;
/** The amount of admins connected. */
byte _network_admins_connected = 0;
/** The pool with sockets/clients. */
NetworkAdminSocketPool _networkadminsocket_pool("NetworkAdminSocket");
INSTANTIATE_POOL_METHODS(NetworkAdminSocket)
/** The timeout for authorisation of the client. */
static const std::chrono::seconds ADMIN_AUTHORISATION_TIMEOUT(10);
/** Frequencies, which may be registered for a certain update type. */
static const AdminUpdateFrequency _admin_update_type_frequencies[] = {
ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_DAILY | ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_DATE
ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_CLIENT_INFO
ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_COMPANY_INFO
ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_COMPANY_ECONOMY
ADMIN_FREQUENCY_POLL | ADMIN_FREQUENCY_WEEKLY | ADMIN_FREQUENCY_MONTHLY | ADMIN_FREQUENCY_QUARTERLY | ADMIN_FREQUENCY_ANUALLY, ///< ADMIN_UPDATE_COMPANY_STATS
ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_CHAT
ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_CONSOLE
ADMIN_FREQUENCY_POLL, ///< ADMIN_UPDATE_CMD_NAMES
ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_CMD_LOGGING
ADMIN_FREQUENCY_AUTOMATIC, ///< ADMIN_UPDATE_GAMESCRIPT
};
/** Sanity check. */
static_assert(lengthof(_admin_update_type_frequencies) == ADMIN_UPDATE_END);
/**
* Create a new socket for the server side of the admin network.
* @param s The socket to connect with.
*/
ServerNetworkAdminSocketHandler::ServerNetworkAdminSocketHandler(SOCKET s) : NetworkAdminSocketHandler(s)
{
_network_admins_connected++;
this->status = ADMIN_STATUS_INACTIVE;
this->connect_time = std::chrono::steady_clock::now();
}
/**
* Clear everything related to this admin.
*/
ServerNetworkAdminSocketHandler::~ServerNetworkAdminSocketHandler()
{
_network_admins_connected--;
Debug(net, 3, "[admin] '{}' ({}) has disconnected", this->admin_name, this->admin_version);
if (_redirect_console_to_admin == this->index) _redirect_console_to_admin = INVALID_ADMIN_ID;
if (this->update_frequency[ADMIN_UPDATE_CONSOLE] & ADMIN_FREQUENCY_AUTOMATIC) {
this->update_frequency[ADMIN_UPDATE_CONSOLE] = (AdminUpdateFrequency)0;
DebugReconsiderSendRemoteMessages();
}
}
/**
* Whether a connection is allowed or not at this moment.
* @return Whether the connection is allowed.
*/
/* static */ bool ServerNetworkAdminSocketHandler::AllowConnection()
{
bool accept = !_settings_client.network.admin_password.empty() && _network_admins_connected < MAX_ADMINS;
/* We can't go over the MAX_ADMINS limit here. However, if we accept
* the connection, there has to be space in the pool. */
static_assert(NetworkAdminSocketPool::MAX_SIZE == MAX_ADMINS);
assert(!accept || ServerNetworkAdminSocketHandler::CanAllocateItem());
return accept;
}
/** Send the packets for the server sockets. */
/* static */ void ServerNetworkAdminSocketHandler::Send()
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::Iterate()) {
if (as->status == ADMIN_STATUS_INACTIVE && std::chrono::steady_clock::now() > as->connect_time + ADMIN_AUTHORISATION_TIMEOUT) {
Debug(net, 2, "[admin] Admin did not send its authorisation within {} seconds", std::chrono::duration_cast<std::chrono::seconds>(ADMIN_AUTHORISATION_TIMEOUT).count());
as->CloseConnection(true);
continue;
}
if (as->writable) {
as->SendPackets();
}
}
}
/**
* Handle the acception of a connection.
* @param s The socket of the new connection.
* @param address The address of the peer.
*/
/* static */ void ServerNetworkAdminSocketHandler::AcceptConnection(SOCKET s, const NetworkAddress &address)
{
ServerNetworkAdminSocketHandler *as = new ServerNetworkAdminSocketHandler(s);
as->address = address; // Save the IP of the client
}
/***********
* Sending functions for admin network
************/
/**
* Send an error to the admin.
* @param error The error to send.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendError(NetworkErrorCode error)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_ERROR);
p->Send_uint8(error);
this->SendPacket(p);
std::string error_message = GetString(GetNetworkErrorMsg(error));
Debug(net, 1, "[admin] The admin '{}' ({}) made an error and has been disconnected: '{}'", this->admin_name, this->admin_version, error_message);
return this->CloseConnection(true);
}
/** Send the protocol version to the admin. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendProtocol()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_PROTOCOL);
/* announce the protocol version */
p->Send_uint8(NETWORK_GAME_ADMIN_VERSION);
for (int i = 0; i < ADMIN_UPDATE_END; i++) {
p->Send_bool (true);
p->Send_uint16(i);
p->Send_uint16(_admin_update_type_frequencies[i]);
}
p->Send_bool(false);
this->SendPacket(p);
return this->SendWelcome();
}
/** Send a welcome message to the admin. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendWelcome()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_WELCOME);
p->Send_string(_settings_client.network.server_name);
p->Send_string(GetNetworkRevisionString());
p->Send_bool (_network_dedicated);
p->Send_string(""); // Used to be map-name.
p->Send_uint32(_settings_game.game_creation.generation_seed);
p->Send_uint8 (_settings_game.game_creation.landscape);
p->Send_uint32(ConvertYMDToDate(_settings_game.game_creation.starting_year, 0, 1));
p->Send_uint16(MapSizeX());
p->Send_uint16(MapSizeY());
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Tell the admin we started a new game. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendNewGame()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_NEWGAME);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Tell the admin we're shutting down. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendShutdown()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_SHUTDOWN);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Tell the admin the date. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendDate()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_DATE);
p->Send_uint32(_date);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Tell the admin that a client joined.
* @param client_id The client that joined.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientJoin(ClientID client_id)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_JOIN);
p->Send_uint32(client_id);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send an initial set of data from some client's information.
* @param cs The socket of the client.
* @param ci The information about the client.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientInfo(const NetworkClientSocket *cs, const NetworkClientInfo *ci)
{
/* Only send data when we're a proper client, not just someone trying to query the server. */
if (ci == nullptr) return NETWORK_RECV_STATUS_OKAY;
Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_INFO);
p->Send_uint32(ci->client_id);
p->Send_string(cs == nullptr ? "" : const_cast<NetworkAddress &>(cs->client_address).GetHostname());
p->Send_string(ci->client_name);
p->Send_uint8 (0); // Used to be language
p->Send_uint32(ci->join_date);
p->Send_uint8 (ci->client_playas);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send an update for some client's information.
* @param ci The information about a client.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientUpdate(const NetworkClientInfo *ci)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_UPDATE);
p->Send_uint32(ci->client_id);
p->Send_string(ci->client_name);
p->Send_uint8 (ci->client_playas);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Tell the admin that a client quit.
* @param client_id The client that quit.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientQuit(ClientID client_id)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_QUIT);
p->Send_uint32(client_id);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Tell the admin that a client made an error.
* @param client_id The client that made the error.
* @param error The error that was made.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendClientError(ClientID client_id, NetworkErrorCode error)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CLIENT_ERROR);
p->Send_uint32(client_id);
p->Send_uint8 (error);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Tell the admin that a new company was founded.
* @param company_id The company that was founded.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyNew(CompanyID company_id)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_NEW);
p->Send_uint8(company_id);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send the admin some information about a company.
* @param c The company to send the information about.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyInfo(const Company *c)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_INFO);
p->Send_uint8 (c->index);
SetDParam(0, c->index);
p->Send_string(GetString(STR_COMPANY_NAME));
SetDParam(0, c->index);
p->Send_string(GetString(STR_PRESIDENT_NAME));
p->Send_uint8 (c->colour);
p->Send_bool (NetworkCompanyIsPassworded(c->index));
p->Send_uint32(c->inaugurated_year);
p->Send_bool (c->is_ai);
p->Send_uint8 (CeilDiv(c->months_of_bankruptcy, 3)); // send as quarters_of_bankruptcy
for (size_t i = 0; i < lengthof(c->share_owners); i++) {
p->Send_uint8(c->share_owners[i]);
}
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send an update about a company.
* @param c The company to send the update of.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyUpdate(const Company *c)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_UPDATE);
p->Send_uint8 (c->index);
SetDParam(0, c->index);
p->Send_string(GetString(STR_COMPANY_NAME));
SetDParam(0, c->index);
p->Send_string(GetString(STR_PRESIDENT_NAME));
p->Send_uint8 (c->colour);
p->Send_bool (NetworkCompanyIsPassworded(c->index));
p->Send_uint8 (CeilDiv(c->months_of_bankruptcy, 3)); // send as quarters_of_bankruptcy
for (size_t i = 0; i < lengthof(c->share_owners); i++) {
p->Send_uint8(c->share_owners[i]);
}
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Tell the admin that a company got removed.
* @param company_id The company that got removed.
* @param acrr The reason for removal, e.g. bankruptcy or merger.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyRemove(CompanyID company_id, AdminCompanyRemoveReason acrr)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_REMOVE);
p->Send_uint8(company_id);
p->Send_uint8(acrr);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Send economic information of all companies. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyEconomy()
{
for (const Company *company : Company::Iterate()) {
/* Get the income. */
Money income = 0;
for (uint i = 0; i < lengthof(company->yearly_expenses[0]); i++) {
income -= company->yearly_expenses[0][i];
}
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_ECONOMY);
p->Send_uint8(company->index);
/* Current information. */
p->Send_uint64(company->money);
p->Send_uint64(company->current_loan);
p->Send_uint64(income);
p->Send_uint16(static_cast<uint16>(std::min<uint64>(UINT16_MAX, company->cur_economy.delivered_cargo.GetSum<OverflowSafeInt64>())));
/* Send stats for the last 2 quarters. */
for (uint i = 0; i < 2; i++) {
p->Send_uint64(company->old_economy[i].company_value);
p->Send_uint16(company->old_economy[i].performance_history);
p->Send_uint16(static_cast<uint16>(std::min<uint64>(UINT16_MAX, company->old_economy[i].delivered_cargo.GetSum<OverflowSafeInt64>())));
}
this->SendPacket(p);
}
return NETWORK_RECV_STATUS_OKAY;
}
/** Send statistics about the companies. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyStats()
{
/* Fetch the latest version of the stats. */
NetworkCompanyStats company_stats[MAX_COMPANIES];
NetworkPopulateCompanyStats(company_stats);
/* Go through all the companies. */
for (const Company *company : Company::Iterate()) {
Packet *p = new Packet(ADMIN_PACKET_SERVER_COMPANY_STATS);
/* Send the information. */
p->Send_uint8(company->index);
for (uint i = 0; i < NETWORK_VEH_END; i++) {
p->Send_uint16(company_stats[company->index].num_vehicle[i]);
}
for (uint i = 0; i < NETWORK_VEH_END; i++) {
p->Send_uint16(company_stats[company->index].num_station[i]);
}
this->SendPacket(p);
}
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send a chat message.
* @param action The action associated with the message.
* @param desttype The destination type.
* @param client_id The origin of the chat message.
* @param msg The actual message.
* @param data Arbitrary extra data.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendChat(NetworkAction action, DestType desttype, ClientID client_id, const std::string &msg, int64 data)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CHAT);
p->Send_uint8 (action);
p->Send_uint8 (desttype);
p->Send_uint32(client_id);
p->Send_string(msg);
p->Send_uint64(data);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send a notification indicating the rcon command has completed.
* @param command The original command sent.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendRconEnd(const std::string_view command)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_RCON_END);
p->Send_string(command);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send the reply of an rcon command.
* @param colour The colour of the text.
* @param result The result of the command.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendRcon(uint16 colour, const std::string_view result)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_RCON);
p->Send_uint16(colour);
p->Send_string(result);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_RCON(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
std::string command = p->Recv_string(NETWORK_RCONCOMMAND_LENGTH);
Debug(net, 3, "[admin] Rcon command from '{}' ({}): {}", this->admin_name, this->admin_version, command);
_redirect_console_to_admin = this->index;
IConsoleCmdExec(command.c_str());
_redirect_console_to_admin = INVALID_ADMIN_ID;
return this->SendRconEnd(command);
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_GAMESCRIPT(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
std::string json = p->Recv_string(NETWORK_GAMESCRIPT_JSON_LENGTH);
Debug(net, 6, "[admin] GameScript JSON from '{}' ({}): {}", this->admin_name, this->admin_version, json);
Game::NewEvent(new ScriptEventAdminPort(json));
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_PING(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
uint32 d1 = p->Recv_uint32();
Debug(net, 6, "[admin] Ping from '{}' ({}): {}", this->admin_name, this->admin_version, d1);
return this->SendPong(d1);
}
/**
* Send console output of other clients.
* @param origin The origin of the string.
* @param string The string that's put on the console.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendConsole(const std::string_view origin, const std::string_view string)
{
/* If the length of both strings, plus the 2 '\0' terminations and 3 bytes of the packet
* are bigger than the MTU, just ignore the message. Better safe than sorry. It should
* never occur though as the longest strings are chat messages, which are still 30%
* smaller than COMPAT_MTU. */
if (origin.size() + string.size() + 2 + 3 >= COMPAT_MTU) return NETWORK_RECV_STATUS_OKAY;
Packet *p = new Packet(ADMIN_PACKET_SERVER_CONSOLE);
p->Send_string(origin);
p->Send_string(string);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send GameScript JSON output.
* @param json The JSON string.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendGameScript(const std::string_view json)
{
/* At the moment we cannot transmit anything larger than MTU. So we limit
* the maximum amount of json data that can be sent. Account also for
* the trailing \0 of the string */
if (json.size() + 1 >= NETWORK_GAMESCRIPT_JSON_LENGTH) return NETWORK_RECV_STATUS_OKAY;
Packet *p = new Packet(ADMIN_PACKET_SERVER_GAMESCRIPT);
p->Send_string(json);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Send ping-reply (pong) to admin **/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendPong(uint32 d1)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_PONG);
p->Send_uint32(d1);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/** Send the names of the commands. */
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCmdNames()
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CMD_NAMES);
for (uint16 i = 0; i < CMD_END; i++) {
const char *cmdname = GetCommandName(static_cast<Commands>(i));
/* Should COMPAT_MTU be exceeded, start a new packet
* (magic 5: 1 bool "more data" and one uint16 "command id", one
* byte for string '\0' termination and 1 bool "no more data" */
if (!p->CanWriteToPacket(strlen(cmdname) + 5)) {
p->Send_bool(false);
this->SendPacket(p);
p = new Packet(ADMIN_PACKET_SERVER_CMD_NAMES);
}
p->Send_bool(true);
p->Send_uint16(i);
p->Send_string(cmdname);
}
/* Marker to notify the end of the packet has been reached. */
p->Send_bool(false);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/**
* Send a command for logging purposes.
* @param client_id The client executing the command.
* @param cp The command that would be executed.
*/
NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCmdLogging(ClientID client_id, const CommandPacket *cp)
{
Packet *p = new Packet(ADMIN_PACKET_SERVER_CMD_LOGGING);
p->Send_uint32(client_id);
p->Send_uint8 (cp->company);
p->Send_uint16(cp->cmd);
p->Send_buffer(cp->data);
p->Send_uint32(cp->frame);
this->SendPacket(p);
return NETWORK_RECV_STATUS_OKAY;
}
/***********
* Receiving functions
************/
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_JOIN(Packet *p)
{
if (this->status != ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
std::string password = p->Recv_string(NETWORK_PASSWORD_LENGTH);
if (_settings_client.network.admin_password.empty() ||
_settings_client.network.admin_password.compare(password) != 0) {
/* Password is invalid */
return this->SendError(NETWORK_ERROR_WRONG_PASSWORD);
}
this->admin_name = p->Recv_string(NETWORK_CLIENT_NAME_LENGTH);
this->admin_version = p->Recv_string(NETWORK_REVISION_LENGTH);
if (this->admin_name.empty() || this->admin_version.empty()) {
/* no name or version supplied */
return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
}
this->status = ADMIN_STATUS_ACTIVE;
Debug(net, 3, "[admin] '{}' ({}) has connected", this->admin_name, this->admin_version);
return this->SendProtocol();
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_QUIT(Packet *p)
{
/* The admin is leaving nothing else to do */
return this->CloseConnection();
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_UPDATE_FREQUENCY(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
AdminUpdateType type = (AdminUpdateType)p->Recv_uint16();
AdminUpdateFrequency freq = (AdminUpdateFrequency)p->Recv_uint16();
if (type >= ADMIN_UPDATE_END || (_admin_update_type_frequencies[type] & freq) != freq) {
/* The server does not know of this UpdateType. */
Debug(net, 1, "[admin] Not supported update frequency {} ({}) from '{}' ({})", type, freq, this->admin_name, this->admin_version);
return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
}
this->update_frequency[type] = freq;
if (type == ADMIN_UPDATE_CONSOLE) DebugReconsiderSendRemoteMessages();
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_POLL(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
AdminUpdateType type = (AdminUpdateType)p->Recv_uint8();
uint32 d1 = p->Recv_uint32();
switch (type) {
case ADMIN_UPDATE_DATE:
/* The admin is requesting the current date. */
this->SendDate();
break;
case ADMIN_UPDATE_CLIENT_INFO:
/* The admin is requesting client info. */
if (d1 == UINT32_MAX) {
this->SendClientInfo(nullptr, NetworkClientInfo::GetByClientID(CLIENT_ID_SERVER));
for (const NetworkClientSocket *cs : NetworkClientSocket::Iterate()) {
this->SendClientInfo(cs, cs->GetInfo());
}
} else {
if (d1 == CLIENT_ID_SERVER) {
this->SendClientInfo(nullptr, NetworkClientInfo::GetByClientID(CLIENT_ID_SERVER));
} else {
const NetworkClientSocket *cs = NetworkClientSocket::GetByClientID((ClientID)d1);
if (cs != nullptr) this->SendClientInfo(cs, cs->GetInfo());
}
}
break;
case ADMIN_UPDATE_COMPANY_INFO:
/* The admin is asking for company info. */
if (d1 == UINT32_MAX) {
for (const Company *company : Company::Iterate()) {
this->SendCompanyInfo(company);
}
} else {
const Company *company = Company::GetIfValid(d1);
if (company != nullptr) this->SendCompanyInfo(company);
}
break;
case ADMIN_UPDATE_COMPANY_ECONOMY:
/* The admin is requesting economy info. */
this->SendCompanyEconomy();
break;
case ADMIN_UPDATE_COMPANY_STATS:
/* the admin is requesting company stats. */
this->SendCompanyStats();
break;
case ADMIN_UPDATE_CMD_NAMES:
/* The admin is requesting the names of DoCommands. */
this->SendCmdNames();
break;
default:
/* An unsupported "poll" update type. */
Debug(net, 1, "[admin] Not supported poll {} ({}) from '{}' ({}).", type, d1, this->admin_name, this->admin_version);
return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
}
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_CHAT(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
NetworkAction action = (NetworkAction)p->Recv_uint8();
DestType desttype = (DestType)p->Recv_uint8();
int dest = p->Recv_uint32();
std::string msg = p->Recv_string(NETWORK_CHAT_LENGTH);
switch (action) {
case NETWORK_ACTION_CHAT:
case NETWORK_ACTION_CHAT_CLIENT:
case NETWORK_ACTION_CHAT_COMPANY:
case NETWORK_ACTION_SERVER_MESSAGE:
NetworkServerSendChat(action, desttype, dest, msg, _network_own_client_id, 0, true);
break;
default:
Debug(net, 1, "[admin] Invalid chat action {} from admin '{}' ({}).", action, this->admin_name, this->admin_version);
return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
}
return NETWORK_RECV_STATUS_OKAY;
}
NetworkRecvStatus ServerNetworkAdminSocketHandler::Receive_ADMIN_EXTERNAL_CHAT(Packet *p)
{
if (this->status == ADMIN_STATUS_INACTIVE) return this->SendError(NETWORK_ERROR_NOT_EXPECTED);
std::string source = p->Recv_string(NETWORK_CHAT_LENGTH);
TextColour colour = (TextColour)p->Recv_uint16();
std::string user = p->Recv_string(NETWORK_CHAT_LENGTH);
std::string msg = p->Recv_string(NETWORK_CHAT_LENGTH);
if (!IsValidConsoleColour(colour)) {
Debug(net, 1, "[admin] Not supported chat colour {} ({}, {}, {}) from '{}' ({}).", (uint16)colour, source, user, msg, this->admin_name, this->admin_version);
return this->SendError(NETWORK_ERROR_ILLEGAL_PACKET);
}
NetworkServerSendExternalChat(source, colour, user, msg);
return NETWORK_RECV_STATUS_OKAY;
}
/*
* Useful wrapper functions
*/
/**
* Notify the admin network of a new client (if they did opt in for the respective update).
* @param cs the client info.
* @param new_client if this is a new client, send the respective packet too.
*/
void NetworkAdminClientInfo(const NetworkClientSocket *cs, bool new_client)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendClientInfo(cs, cs->GetInfo());
if (new_client) {
as->SendClientJoin(cs->client_id);
}
}
}
}
/**
* Notify the admin network of a client update (if they did opt in for the respective update).
* @param ci the client info.
*/
void NetworkAdminClientUpdate(const NetworkClientInfo *ci)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendClientUpdate(ci);
}
}
}
/**
* Notify the admin network that a client quit (if they have opt in for the respective update).
* @param client_id of the client that quit.
*/
void NetworkAdminClientQuit(ClientID client_id)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendClientQuit(client_id);
}
}
}
/**
* Notify the admin network of a client error (if they have opt in for the respective update).
* @param client_id the client that made the error.
* @param error_code the error that was caused.
*/
void NetworkAdminClientError(ClientID client_id, NetworkErrorCode error_code)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CLIENT_INFO] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendClientError(client_id, error_code);
}
}
}
/**
* Notify the admin network of company details.
* @param company the company of which details will be sent into the admin network.
* @param new_company whether this is a new company or not.
*/
void NetworkAdminCompanyInfo(const Company *company, bool new_company)
{
if (company == nullptr) {
Debug(net, 1, "[admin] Empty company given for update");
return;
}
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_COMPANY_INFO] != ADMIN_FREQUENCY_AUTOMATIC) continue;
as->SendCompanyInfo(company);
if (new_company) {
as->SendCompanyNew(company->index);
}
}
}
/**
* Notify the admin network of company updates.
* @param company company of which updates are going to be sent into the admin network.
*/
void NetworkAdminCompanyUpdate(const Company *company)
{
if (company == nullptr) return;
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_COMPANY_INFO] != ADMIN_FREQUENCY_AUTOMATIC) continue;
as->SendCompanyUpdate(company);
}
}
/**
* Notify the admin network of a company to be removed (including the reason why).
* @param company_id ID of the company that got removed.
* @param bcrr the reason why the company got removed (e.g. bankruptcy).
*/
void NetworkAdminCompanyRemove(CompanyID company_id, AdminCompanyRemoveReason bcrr)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
as->SendCompanyRemove(company_id, bcrr);
}
}
/**
* Send chat to the admin network (if they did opt in for the respective update).
*/
void NetworkAdminChat(NetworkAction action, DestType desttype, ClientID client_id, const std::string &msg, int64 data, bool from_admin)
{
if (from_admin) return;
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CHAT] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendChat(action, desttype, client_id, msg, data);
}
}
}
/**
* Pass the rcon reply to the admin.
* @param admin_index The admin to give the reply.
* @param colour_code The colour of the string.
* @param string The string to show.
*/
void NetworkServerSendAdminRcon(AdminIndex admin_index, TextColour colour_code, const std::string_view string)
{
ServerNetworkAdminSocketHandler::Get(admin_index)->SendRcon(colour_code, string);
}
/**
* Send console to the admin network (if they did opt in for the respective update).
* @param origin the origin of the message.
* @param string the message as printed on the console.
*/
void NetworkAdminConsole(const std::string_view origin, const std::string_view string)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CONSOLE] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendConsole(origin, string);
}
}
}
/**
* Send GameScript JSON to the admin network (if they did opt in for the respective update).
* @param json The JSON data as received from the GameScript.
*/
void NetworkAdminGameScript(const std::string_view json)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_GAMESCRIPT] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendGameScript(json);
}
}
}
/**
* Distribute CommandPacket details over the admin network for logging purposes.
* @param owner The owner of the CommandPacket (who sent us the CommandPacket).
* @param cp The CommandPacket to be distributed.
*/
void NetworkAdminCmdLogging(const NetworkClientSocket *owner, const CommandPacket *cp)
{
ClientID client_id = owner == nullptr ? _network_own_client_id : owner->client_id;
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
if (as->update_frequency[ADMIN_UPDATE_CMD_LOGGING] & ADMIN_FREQUENCY_AUTOMATIC) {
as->SendCmdLogging(client_id, cp);
}
}
}
/**
* Send a Welcome packet to all connected admins
*/
void ServerNetworkAdminSocketHandler::WelcomeAll()
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
as->SendWelcome();
}
}
/**
* Send (push) updates to the admin network as they have registered for these updates.
* @param freq the frequency to be processed.
*/
void NetworkAdminUpdate(AdminUpdateFrequency freq)
{
for (ServerNetworkAdminSocketHandler *as : ServerNetworkAdminSocketHandler::IterateActive()) {
for (int i = 0; i < ADMIN_UPDATE_END; i++) {
if (as->update_frequency[i] & freq) {
/* Update the admin for the required details */
switch (i) {
case ADMIN_UPDATE_DATE:
as->SendDate();
break;
case ADMIN_UPDATE_COMPANY_ECONOMY:
as->SendCompanyEconomy();
break;
case ADMIN_UPDATE_COMPANY_STATS:
as->SendCompanyStats();
break;
default: NOT_REACHED();
}
}
}
}
}