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+// Copyright 2017 Citra Emulator Project
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+// Licensed under GPLv2 or any later version
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+// Refer to the license.txt file included.
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+
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+#include <chrono>
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+#include <fstream>
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+#include <iostream>
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+#include <memory>
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+#include <regex>
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+#include <string>
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+#include <thread>
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+
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+#ifdef _WIN32
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+// windows.h needs to be included before shellapi.h
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+#include <windows.h>
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+
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+#include <shellapi.h>
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+#endif
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+
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+#include <mbedtls/base64.h>
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+#include "common/common_types.h"
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+#include "common/detached_tasks.h"
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+#include "common/fs/file.h"
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+#include "common/fs/fs.h"
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+#include "common/fs/path_util.h"
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+#include "common/logging/backend.h"
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+#include "common/logging/log.h"
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+#include "common/scm_rev.h"
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+#include "common/settings.h"
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+#include "common/string_util.h"
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+#include "core/announce_multiplayer_session.h"
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+#include "core/core.h"
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+#include "network/network.h"
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+#include "network/room.h"
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+#include "network/verify_user.h"
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+
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+#ifdef ENABLE_WEB_SERVICE
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+#include "web_service/verify_user_jwt.h"
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+#endif
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+
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+#undef _UNICODE
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+#include <getopt.h>
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+#ifndef _MSC_VER
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+#include <unistd.h>
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+#endif
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+
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+static void PrintHelp(const char* argv0) {
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+ std::cout << "Usage: " << argv0
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+ << " [options] <filename>\n"
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+ "--room-name The name of the room\n"
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+ "--room-description The room description\n"
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+ "--port The port used for the room\n"
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+ "--max_members The maximum number of players for this room\n"
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+ "--password The password for the room\n"
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+ "--preferred-game The preferred game for this room\n"
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+ "--preferred-game-id The preferred game-id for this room\n"
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+ "--username The username used for announce\n"
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+ "--token The token used for announce\n"
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+ "--web-api-url yuzu Web API url\n"
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+ "--ban-list-file The file for storing the room ban list\n"
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+ "--log-file The file for storing the room log\n"
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+ "--enable-yuzu-mods Allow yuzu Community Moderators to moderate on your room\n"
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+ "-h, --help Display this help and exit\n"
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+ "-v, --version Output version information and exit\n";
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+}
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+
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+static void PrintVersion() {
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+ std::cout << "yuzu dedicated room " << Common::g_scm_branch << " " << Common::g_scm_desc
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+ << " Libnetwork: " << Network::network_version << std::endl;
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+}
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+
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+/// The magic text at the beginning of a yuzu-room ban list file.
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+static constexpr char BanListMagic[] = "YuzuRoom-BanList-1";
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+
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+static constexpr char token_delimiter{':'};
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+
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+static std::string UsernameFromDisplayToken(const std::string& display_token) {
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+ std::size_t outlen;
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+
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+ std::array<unsigned char, 512> output;
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+ mbedtls_base64_decode(output.data(), output.size(), &outlen,
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+ reinterpret_cast<const unsigned char*>(display_token.c_str()),
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+ display_token.length());
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+ std::string decoded_display_token(reinterpret_cast<char*>(&output), outlen);
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+ return decoded_display_token.substr(0, decoded_display_token.find(token_delimiter));
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+}
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+
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+static std::string TokenFromDisplayToken(const std::string& display_token) {
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+ std::size_t outlen;
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+
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+ std::array<unsigned char, 512> output;
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+ mbedtls_base64_decode(output.data(), output.size(), &outlen,
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+ reinterpret_cast<const unsigned char*>(display_token.c_str()),
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+ display_token.length());
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+ std::string decoded_display_token(reinterpret_cast<char*>(&output), outlen);
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+ return decoded_display_token.substr(decoded_display_token.find(token_delimiter) + 1);
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+}
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+
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+static Network::Room::BanList LoadBanList(const std::string& path) {
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+ std::ifstream file;
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+ Common::FS::OpenFileStream(file, path, std::ios_base::in);
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+ if (!file || file.eof()) {
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+ std::cout << "Could not open ban list!\n\n";
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+ return {};
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+ }
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+ std::string magic;
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+ std::getline(file, magic);
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+ if (magic != BanListMagic) {
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+ std::cout << "Ban list is not valid!\n\n";
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+ return {};
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+ }
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+
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+ // false = username ban list, true = ip ban list
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+ bool ban_list_type = false;
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+ Network::Room::UsernameBanList username_ban_list;
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+ Network::Room::IPBanList ip_ban_list;
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+ while (!file.eof()) {
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+ std::string line;
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+ std::getline(file, line);
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+ line.erase(std::remove(line.begin(), line.end(), '\0'), line.end());
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+ line = Common::StripSpaces(line);
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+ if (line.empty()) {
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+ // An empty line marks start of the IP ban list
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+ ban_list_type = true;
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+ continue;
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+ }
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+ if (ban_list_type) {
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+ ip_ban_list.emplace_back(line);
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+ } else {
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+ username_ban_list.emplace_back(line);
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+ }
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+ }
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+
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+ return {username_ban_list, ip_ban_list};
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+}
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+
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+static void SaveBanList(const Network::Room::BanList& ban_list, const std::string& path) {
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+ std::ofstream file;
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+ Common::FS::OpenFileStream(file, path, std::ios_base::out);
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+ if (!file) {
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+ std::cout << "Could not save ban list!\n\n";
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+ return;
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+ }
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+
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+ file << BanListMagic << "\n";
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+
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+ // Username ban list
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+ for (const auto& username : ban_list.first) {
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+ file << username << "\n";
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+ }
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+ file << "\n";
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+
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+ // IP ban list
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+ for (const auto& ip : ban_list.second) {
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+ file << ip << "\n";
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+ }
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+
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+ file.flush();
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+}
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+
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+static void InitializeLogging(const std::string& log_file) {
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+ Common::Log::Initialize();
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+ Common::Log::SetColorConsoleBackendEnabled(true);
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+ Common::Log::Start();
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+}
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+
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+/// Application entry point
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+int main(int argc, char** argv) {
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+ Common::DetachedTasks detached_tasks;
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+ int option_index = 0;
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+ char* endarg;
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+
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+ std::string room_name;
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+ std::string room_description;
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+ std::string password;
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+ std::string preferred_game;
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+ std::string username;
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+ std::string token;
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+ std::string web_api_url;
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+ std::string ban_list_file;
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+ std::string log_file = "yuzu-room.log";
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+ u64 preferred_game_id = 0;
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+ u32 port = Network::DefaultRoomPort;
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+ u32 max_members = 16;
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+ bool enable_yuzu_mods = false;
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+
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+ static struct option long_options[] = {
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+ {"room-name", required_argument, 0, 'n'},
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+ {"room-description", required_argument, 0, 'd'},
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+ {"port", required_argument, 0, 'p'},
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+ {"max_members", required_argument, 0, 'm'},
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+ {"password", required_argument, 0, 'w'},
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+ {"preferred-game", required_argument, 0, 'g'},
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+ {"preferred-game-id", required_argument, 0, 'i'},
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+ {"username", optional_argument, 0, 'u'},
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+ {"token", required_argument, 0, 't'},
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+ {"web-api-url", required_argument, 0, 'a'},
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+ {"ban-list-file", required_argument, 0, 'b'},
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+ {"log-file", required_argument, 0, 'l'},
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+ {"enable-yuzu-mods", no_argument, 0, 'e'},
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+ {"help", no_argument, 0, 'h'},
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+ {"version", no_argument, 0, 'v'},
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+ {0, 0, 0, 0},
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+ };
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+
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+ while (optind < argc) {
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+ int arg = getopt_long(argc, argv, "n:d:p:m:w:g:u:t:a:i:l:hv", long_options, &option_index);
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+ if (arg != -1) {
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+ switch (static_cast<char>(arg)) {
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+ case 'n':
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+ room_name.assign(optarg);
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+ break;
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+ case 'd':
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+ room_description.assign(optarg);
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+ break;
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+ case 'p':
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+ port = strtoul(optarg, &endarg, 0);
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+ break;
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+ case 'm':
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+ max_members = strtoul(optarg, &endarg, 0);
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+ break;
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+ case 'w':
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+ password.assign(optarg);
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+ break;
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+ case 'g':
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+ preferred_game.assign(optarg);
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+ break;
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+ case 'i':
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+ preferred_game_id = strtoull(optarg, &endarg, 16);
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+ break;
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+ case 'u':
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+ username.assign(optarg);
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+ break;
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+ case 't':
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+ token.assign(optarg);
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+ break;
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+ case 'a':
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+ web_api_url.assign(optarg);
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+ break;
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+ case 'b':
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+ ban_list_file.assign(optarg);
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+ break;
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+ case 'l':
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+ log_file.assign(optarg);
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+ break;
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+ case 'e':
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+ enable_yuzu_mods = true;
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+ break;
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+ case 'h':
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+ PrintHelp(argv[0]);
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+ return 0;
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+ case 'v':
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+ PrintVersion();
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+ return 0;
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+ }
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+ }
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+ }
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+
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+ if (room_name.empty()) {
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+ std::cout << "room name is empty!\n\n";
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+ PrintHelp(argv[0]);
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+ return -1;
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+ }
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+ if (preferred_game.empty()) {
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+ std::cout << "preferred game is empty!\n\n";
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+ PrintHelp(argv[0]);
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+ return -1;
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+ }
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+ if (preferred_game_id == 0) {
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+ std::cout << "preferred-game-id not set!\nThis should get set to allow users to find your "
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+ "room.\nSet with --preferred-game-id id\n\n";
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+ }
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+ if (max_members > Network::MaxConcurrentConnections || max_members < 2) {
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+ std::cout << "max_members needs to be in the range 2 - "
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+ << Network::MaxConcurrentConnections << "!\n\n";
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+ PrintHelp(argv[0]);
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+ return -1;
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+ }
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+ if (port > 65535) {
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+ std::cout << "port needs to be in the range 0 - 65535!\n\n";
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+ PrintHelp(argv[0]);
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+ return -1;
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+ }
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+ if (ban_list_file.empty()) {
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+ std::cout << "Ban list file not set!\nThis should get set to load and save room ban "
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+ "list.\nSet with --ban-list-file <file>\n\n";
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+ }
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+ bool announce = true;
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+ if (token.empty() && announce) {
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+ announce = false;
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+ std::cout << "token is empty: Hosting a private room\n\n";
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+ }
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+ if (web_api_url.empty() && announce) {
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+ announce = false;
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+ std::cout << "endpoint url is empty: Hosting a private room\n\n";
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+ }
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+ if (announce) {
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+ if (username.empty()) {
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+ std::cout << "Hosting a public room\n\n";
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+ Settings::values.web_api_url = web_api_url;
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+ Settings::values.yuzu_username = UsernameFromDisplayToken(token);
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+ username = Settings::values.yuzu_username.GetValue();
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+ Settings::values.yuzu_token = TokenFromDisplayToken(token);
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+ } else {
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+ std::cout << "Hosting a public room\n\n";
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+ Settings::values.web_api_url = web_api_url;
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+ Settings::values.yuzu_username = username;
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+ Settings::values.yuzu_token = token;
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+ }
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+ }
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+ if (!announce && enable_yuzu_mods) {
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+ enable_yuzu_mods = false;
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+ std::cout << "Can not enable yuzu Moderators for private rooms\n\n";
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+ }
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+
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+ InitializeLogging(log_file);
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+
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+ // Load the ban list
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+ Network::Room::BanList ban_list;
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+ if (!ban_list_file.empty()) {
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+ ban_list = LoadBanList(ban_list_file);
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+ }
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+
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+ std::unique_ptr<Network::VerifyUser::Backend> verify_backend;
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+ if (announce) {
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+#ifdef ENABLE_WEB_SERVICE
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+ verify_backend =
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+ std::make_unique<WebService::VerifyUserJWT>(Settings::values.web_api_url.GetValue());
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+#else
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+ std::cout
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+ << "yuzu Web Services is not available with this build: validation is disabled.\n\n";
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+ verify_backend = std::make_unique<Network::VerifyUser::NullBackend>();
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+#endif
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+ } else {
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+ verify_backend = std::make_unique<Network::VerifyUser::NullBackend>();
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+ }
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+
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+ Core::System system{};
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+ auto& network = system.GetRoomNetwork();
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+ network.Init();
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+ if (std::shared_ptr<Network::Room> room = network.GetRoom().lock()) {
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+ AnnounceMultiplayerRoom::GameInfo preferred_game_info{.name = preferred_game,
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+ .id = preferred_game_id};
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+ if (!room->Create(room_name, room_description, "", port, password, max_members, username,
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+ preferred_game_info, std::move(verify_backend), ban_list,
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+ enable_yuzu_mods)) {
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+ std::cout << "Failed to create room: \n\n";
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+ return -1;
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+ }
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+ std::cout << "Room is open. Close with Q+Enter...\n\n";
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+ auto announce_session = std::make_unique<Core::AnnounceMultiplayerSession>(network);
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+ if (announce) {
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+ announce_session->Start();
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+ }
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+ while (room->GetState() == Network::Room::State::Open) {
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+ std::string in;
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+ std::cin >> in;
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+ if (in.size() > 0) {
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+ break;
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+ }
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+ std::this_thread::sleep_for(std::chrono::milliseconds(100));
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+ }
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+ if (announce) {
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+ announce_session->Stop();
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+ }
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+ announce_session.reset();
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+ // Save the ban list
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+ if (!ban_list_file.empty()) {
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+ SaveBanList(room->GetBanList(), ban_list_file);
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+ }
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+ room->Destroy();
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+ }
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+ network.Shutdown();
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+ detached_tasks.WaitForAllTasks();
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+ return 0;
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+}
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FearlessTobi