server/Server.cpp

   1 //\r
   2 // Server.cpp\r
   3 //\r
   4 \r
   5 #include "Server.hpp"\r
   6 #include "version.hpp"\r
   7 #include <algorithm>\r
   8 #include <boost/make_shared.hpp>\r
   9 #include <boost/foreach.hpp>\r
  10 #include <boost/archive/text_oarchive.hpp>\r
  11 #include <boost/property_tree/ptree_serialization.hpp>\r
  12 #include "../common/Logger.hpp"\r
  13 #include "../common/network/Command.hpp"\r
  14 #include "../common/network/Utils.hpp"\r
  15 \r
  16 namespace network {\r
  17 \r
  18     Server::Server() :\r
  19             endpoint_(tcp::v4(), config_.port()),\r
  20             acceptor_(io_service_, endpoint_),\r
  21             socket_udp_(io_service_, udp::endpoint(udp::v4(), config_.port())),\r
  22             udp_packet_count_(0),\r
  23                         recent_chat_log_(10)\r
  24     {\r
  25     }\r
  26 \r
  27     void Server::Start(CallbackFuncPtr callback)\r
  28     {\r
  29         callback_ = std::make_shared<CallbackFunc>(\r
  30                 [&](network::Command c){\r
  31 \r
  32             // ログアウト\r
  33             if (c.header() == network::header::FatalConnectionError) {\r
  34                 if (callback) {\r
  35                                         (*callback)(c);\r
  36                                 }\r
  37             } else if (auto session = c.session().lock()) {\r
  38                                 auto read_average = session->GetReadByteAverage();\r
  39                                 if (read_average > config_.receive_limit_2()) {\r
  40                                         Logger::Info(_T("Banished a session: %d %dbyte/s"), session->id(), read_average);\r
  41                                         session->Close();\r
  42                                 } else if(read_average > config_.receive_limit_1()) {\r
  43                                         Logger::Info(_T("Receive limit exceeded: %d: %d byte/s"), session->id(), read_average);\r
  44                                 } else {\r
  45                                         if (callback) {\r
  46                                                 (*callback)(c);\r
  47                                         }\r
  48                 }\r
  49             }\r
  50 \r
  51         });\r
  52 \r
  53                 BOOST_FOREACH(const auto& host, config().lobby_servers()) {\r
  54                         udp::resolver resolver(io_service_);\r
  55                         udp::resolver::query query(udp::v4(), host.c_str(), "39380");\r
  56                         lobby_hosts_.push_back(resolver.resolve(query));\r
  57                 }\r
  58 \r
  59         {\r
  60         auto new_session = boost::make_shared<ServerSession>(io_service_);\r
  61         acceptor_.async_accept(new_session->tcp_socket(),\r
  62                               boost::bind(&Server::ReceiveSession, this, new_session, boost::asio::placeholders::error));\r
  63         }\r
  64 \r
  65         {\r
  66             socket_udp_.async_receive_from(\r
  67                 boost::asio::buffer(receive_buf_udp_, UDP_MAX_RECEIVE_LENGTH), sender_endpoint_,\r
  68                 boost::bind(&Server::ReceiveUDP, this,\r
  69                   boost::asio::placeholders::error,\r
  70                   boost::asio::placeholders::bytes_transferred));\r
  71         }\r
  72 \r
  73         boost::asio::io_service::work work(io_service_);\r
  74         io_service_.run();\r
  75     }\r
  76 \r
  77     void Server::Stop()\r
  78     {\r
  79         io_service_.stop();\r
  80                 Logger::Info("stop server");\r
  81     }\r
  82     void Server::Stop(int innterrupt_type)\r
  83     {\r
  84         io_service_.stop();\r
  85         Logger::Info(_T("stop server innterrupt_type=%d"),innterrupt_type);\r
  86     }\r
  87 \r
  88         int Server::GetUserCount() const\r
  89         {\r
  90                 auto count = std::count_if(sessions_.begin(), sessions_.end(),\r
  91                         [](const SessionWeakPtr& s){ \r
  92                                 return !s.expired() && s.lock()->online() && s.lock()->id() > 0; \r
  93                         });\r
  94 \r
  95                 return count;\r
  96         }\r
  97 \r
  98         std::string Server::GetStatusJSON() const\r
  99         {\r
 100                 auto msg = (\r
 101                                         boost::format("{\"nam\":\"%s\",\"ver\":\"%d.%d.%d\",\"cnt\":%d,\"cap\":%d,\"stg\":\"%s\"}")\r
 102                                                 % config_.server_name()\r
 103                                                 % MMO_VERSION_MAJOR % MMO_VERSION_MINOR % MMO_VERSION_REVISION\r
 104                                                 % GetUserCount()\r
 105                                                 % config_.capacity()\r
 106                                                 % config_.stage()\r
 107                                         ).str();\r
 108 \r
 109                 return msg;\r
 110         }\r
 111 \r
 112         std::string Server::GetFullStatus() const\r
 113         {\r
 114                 using namespace boost::property_tree;\r
 115                 ptree xml_ptree;\r
 116 \r
 117                 xml_ptree.put_child("config", config_.pt());\r
 118                 xml_ptree.put("version", (boost::format("%d.%d.%d") \r
 119                         % MMO_VERSION_MAJOR % MMO_VERSION_MINOR % MMO_VERSION_REVISION).str());\r
 120                 xml_ptree.put("protocol_version", MMO_PROTOCOL_VERSION);\r
 121 \r
 122                 {\r
 123                         ptree player_array;\r
 124                         auto id_list = account_.GetIDList();\r
 125                         BOOST_FOREACH(const auto& s, sessions_) {\r
 126                                 if (!s.expired() && s.lock()->online() && s.lock()->id() > 0) {\r
 127                                         auto id = s.lock()->id();\r
 128                                         ptree player;\r
 129                                         player.put("name", account_.GetUserName(id));\r
 130                                         player.put("model_name", account_.GetUserModelName(id));\r
 131                                         player_array.push_back(std::make_pair("", player));\r
 132                                 }\r
 133                         }\r
 134                         xml_ptree.put_child("players", player_array);\r
 135                 }\r
 136 \r
 137                 //{\r
 138                 //      ptree log_array;\r
 139                 //      BOOST_FOREACH(const std::string& msg, recent_chat_log_) {\r
 140                 //              log_array.push_back(std::make_pair("", msg));\r
 141                 //      }\r
 142                 //      xml_ptree.put_child("recent_chat_log", log_array);\r
 143                 //}\r
 144 \r
 145                 xml_ptree.put_child("channels", channel_.pt());\r
 146                 std::stringstream stream;\r
 147                 boost::archive::text_oarchive oa(stream);\r
 148                 oa << xml_ptree;\r
 149 \r
 150                 return stream.str();\r
 151         }\r
 152 \r
 153         const Config& Server::config() const\r
 154         {\r
 155                 return config_;\r
 156         }\r
 157 \r
 158         Account& Server::account()\r
 159         {\r
 160                 return account_;\r
 161         }\r
 162         \r
 163         void Server::AddChatLog(const std::string& msg)\r
 164         {\r
 165                 recent_chat_log_.push_back(msg);\r
 166         }\r
 167 \r
 168     bool Server::Empty() const\r
 169     {\r
 170         return GetUserCount() == 0;\r
 171     }\r
 172 \r
 173         bool Server::IsBlockedAddress(const boost::asio::ip::address& address)\r
 174         {\r
 175                 BOOST_FOREACH(const auto& pattern, config_.blocking_address_patterns()) {\r
 176                         if (network::Utils::MatchWithWildcard(pattern, address.to_string())) {\r
 177                                 return true;\r
 178                         }\r
 179                 }\r
 180                 return false;\r
 181         }\r
 182 \r
 183     void Server::ReceiveSession(const SessionPtr& session, const boost::system::error_code& error)\r
 184     {\r
 185                 \r
 186                 config_.Reload();\r
 187 \r
 188                 const auto address = session->tcp_socket().remote_endpoint().address();\r
 189 \r
 190                 // 拒否IPでないか判定\r
 191                 if(IsBlockedAddress(address)) {\r
 192                         Logger::Info("Blocked IP Address: %s", address);\r
 193             session->Close();\r
 194 \r
 195                 } else {\r
 196             session->set_on_receive(callback_);\r
 197             session->Start();\r
 198             sessions_.push_back(SessionWeakPtr(session));\r
 199 \r
 200             // クライアント情報を要求\r
 201             session->Send(ClientRequestedClientInfo());\r
 202         }\r
 203 \r
 204         auto new_session = boost::make_shared<ServerSession>(io_service_);\r
 205          acceptor_.async_accept(new_session->tcp_socket(),\r
 206                  boost::bind(&Server::ReceiveSession, this, new_session, boost::asio::placeholders::error));\r
 207 \r
 208                 RefreshSession();\r
 209     }\r
 210 \r
 211         void Server::RefreshSession()\r
 212         {\r
 213                 // 使用済のセッションのポインタを破棄\r
 214         auto it = std::remove_if(sessions_.begin(), sessions_.end(),\r
 215                 [](const SessionWeakPtr& ptr){\r
 216             return ptr.expired();\r
 217         });\r
 218         sessions_.erase(it, sessions_.end());\r
 219                 Logger::Info("Active connection: %d", GetUserCount());\r
 220         }\r
 221 \r
 222     void Server::SendAll(const Command& command, int channel, bool limited)\r
 223     {\r
 224         BOOST_FOREACH(SessionWeakPtr& ptr, sessions_) {\r
 225             if (auto session = ptr.lock()) {\r
 226                                 if (channel < 0 || (channel >= 0 && session->channel() == channel)) {\r
 227                                         if (!limited || session->write_average_limit() > session->GetWriteByteAverage()) {\r
 228                                                 if (session->id() > 0) {\r
 229                                                         session->Send(command);\r
 230                                                 }\r
 231                                         }\r
 232                                 }\r
 233             }\r
 234         }\r
 235     }\r
 236 \r
 237     void Server::SendOthers(const Command& command, uint32_t self_id, int channel, bool limited)\r
 238     {\r
 239         BOOST_FOREACH(SessionWeakPtr& ptr, sessions_) {\r
 240             if (auto session = ptr.lock()) {\r
 241                                 if (channel < 0 || (channel >= 0 && session->channel() == channel)) {\r
 242                                         if (!limited || session->write_average_limit() > session->GetWriteByteAverage()) {\r
 243                                                 if (session->id() > 0 && session->id() != self_id) {\r
 244                                                         session->Send(command);\r
 245                                                 }\r
 246                                         }\r
 247                                 }\r
 248             }\r
 249         }\r
 250     }\r
 251         \r
 252     void Server::SendTo(const Command& command, uint32_t user_id)\r
 253         {\r
 254                 auto it = std::find_if(sessions_.begin(), sessions_.end(),\r
 255                         [user_id](SessionWeakPtr& ptr){\r
 256                                 return ptr.lock()->id() == user_id;\r
 257                         });\r
 258                 \r
 259                 if (it != sessions_.end()) {\r
 260                         it->lock()->Send(command);\r
 261                 }\r
 262         }\r
 263 \r
 264     void Server::SendUDPTestPacket(const std::string& ip_address, uint16_t port)\r
 265     {\r
 266         using boost::asio::ip::udp;\r
 267 \r
 268         std::stringstream port_str;\r
 269         port_str << (int)port;\r
 270 \r
 271         udp::resolver resolver(io_service_);\r
 272         udp::resolver::query query(udp::v4(), ip_address.c_str(), port_str.str().c_str());\r
 273         udp::resolver::iterator iterator = resolver.resolve(query);\r
 274 \r
 275         static char request[] = "MMO UDP Test Packet";\r
 276         for (int i = 0; i < UDP_TEST_PACKET_TIME; i++) {\r
 277 \r
 278             io_service_.post(boost::bind(&Server::DoWriteUDP, this, request, *iterator));\r
 279         }\r
 280     }\r
 281 \r
 282         void Server::SendPublicPing()\r
 283         {\r
 284                 static char request[] = "P";\r
 285                 BOOST_FOREACH(const auto& iterator, lobby_hosts_) {\r
 286                         io_service_.post(boost::bind(&Server::DoWriteUDP, this, request, *iterator));\r
 287                 }\r
 288         }\r
 289 \r
 290     void Server::SendUDP(const std::string& message, const boost::asio::ip::udp::endpoint endpoint)\r
 291     {\r
 292                 io_service_.post(boost::bind(&Server::DoWriteUDP, this, message, endpoint));\r
 293     }\r
 294 \r
 295     void Server::ReceiveUDP(const boost::system::error_code& error, size_t bytes_recvd)\r
 296     {\r
 297         if (bytes_recvd > 0) {\r
 298             std::string buffer(receive_buf_udp_, bytes_recvd);\r
 299             FetchUDP(buffer, sender_endpoint_);\r
 300         }\r
 301         if (!error) {\r
 302           socket_udp_.async_receive_from(\r
 303               boost::asio::buffer(receive_buf_udp_, UDP_MAX_RECEIVE_LENGTH), sender_endpoint_,\r
 304               boost::bind(&Server::ReceiveUDP, this,\r
 305                 boost::asio::placeholders::error,\r
 306                 boost::asio::placeholders::bytes_transferred));\r
 307         } else {\r
 308             Logger::Error("%s", error.message());\r
 309         }\r
 310     }\r
 311 \r
 312     void Server::DoWriteUDP(const std::string& msg, const udp::endpoint& endpoint)\r
 313     {\r
 314         boost::shared_ptr<std::string> s = \r
 315               boost::make_shared<std::string>(msg.data(), msg.size());\r
 316 \r
 317         socket_udp_.async_send_to(\r
 318             boost::asio::buffer(s->data(), s->size()), endpoint,\r
 319             boost::bind(&Server::WriteUDP, this,\r
 320               boost::asio::placeholders::error, s));\r
 321     }\r
 322 \r
 323     void Server::WriteUDP(const boost::system::error_code& error, boost::shared_ptr<std::string> holder)\r
 324     {\r
 325 //        if (!error) {\r
 326 //            if (!send_queue_.empty()) {\r
 327 //                  send_queue_.pop();\r
 328 //                  if (!send_queue_.empty())\r
 329 //                  {\r
 330 //                    boost::asio::async_write(socket_tcp_,\r
 331 //                        boost::asio::buffer(send_queue_.front().data(),\r
 332 //                          send_queue_.front().size()),\r
 333 //                        boost::bind(&Session::WriteTCP, this,\r
 334 //                          boost::asio::placeholders::error));\r
 335 //                  }\r
 336 //            }\r
 337 //        } else {\r
 338 //            FatalError();\r
 339 //        }\r
 340     }\r
 341 \r
 342     void Server::FetchUDP(const std::string& buffer, const boost::asio::ip::udp::endpoint endpoint)\r
 343     {\r
 344         uint8_t header;\r
 345         std::string body;\r
 346         SessionWeakPtr session;\r
 347 \r
 348                 // IPアドレスとポートからセッションを特定\r
 349                 auto it = std::find_if(sessions_.begin(), sessions_.end(),\r
 350                         [&endpoint](const SessionWeakPtr& session) -> bool {\r
 351                                 if (auto session_ptr = session.lock()) {\r
 352 \r
 353                                         const auto session_endpoint = session_ptr->tcp_socket().remote_endpoint();\r
 354                                         const auto session_port = session_ptr->udp_port();\r
 355 \r
 356                                         return (session_endpoint.address() == endpoint.address() &&\r
 357                                                 session_port == endpoint.port());\r
 358 \r
 359                                 } else {\r
 360                                         return false;\r
 361                                 }\r
 362                         });\r
 363 \r
 364                 if (it != sessions_.end()) {\r
 365                         session = *it;\r
 366                         Logger::Debug("Receive UDP Command: %d", session.lock()->id());\r
 367                 } else {\r
 368                         Logger::Debug("Receive anonymous UDP Command");\r
 369                 }\r
 370 \r
 371         if (buffer.size() > network::Utils::Deserialize(buffer, &header)) {\r
 372                         body = buffer.substr(sizeof(header));\r
 373                 }\r
 374 \r
 375         // 復号\r
 376         if (session.lock() && header == header::ENCRYPT_HEADER) {\r
 377             body.erase(0, sizeof(header));\r
 378                         body = session.lock()->encrypter().Decrypt(body);\r
 379             Utils::Deserialize(body, &header);\r
 380                         body = buffer.substr(sizeof(header));\r
 381         }\r
 382 \r
 383                 if (header == network::header::ServerRequstedStatus) {\r
 384                         SendUDP(GetStatusJSON(), endpoint);\r
 385                 } else {\r
 386                         if (callback_) {\r
 387                                 (*callback_)(Command(static_cast<network::header::CommandHeader>(header), body, session));\r
 388                         }\r
 389                 }\r
 390 \r
 391     }\r
 392 \r
 393     void Server::ServerSession::Start()\r
 394     {\r
 395         online_ = true;\r
 396 \r
 397         // Nagleアルゴリズムを無効化\r
 398         socket_tcp_.set_option(boost::asio::ip::tcp::no_delay(true));\r
 399 \r
 400                 // バッファサイズを変更 1MiB\r
 401                 boost::asio::socket_base::receive_buffer_size option(1048576);\r
 402                 socket_tcp_.set_option(option);\r
 403 \r
 404         // IPアドレスを取得\r
 405         global_ip_ = socket_tcp_.remote_endpoint().address().to_string();\r
 406 \r
 407         boost::asio::async_read_until(socket_tcp_,\r
 408             receive_buf_, NETWORK_UTILS_DELIMITOR,\r
 409             boost::bind(\r
 410               &ServerSession::ReceiveTCP, shared_from_this(),\r
 411               boost::asio::placeholders::error));\r
 412     }\r
 413 }\r