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- /**
- * The Forgotten Server - a free and open-source MMORPG server emulator
- * Copyright (C) 2016 Mark Samman <mark.samman@gmail.com>
- *
- * This program 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #include "otpch.h"
- #include "ban.h"
- #include "database.h"
- #include "databasetasks.h"
- #include "tools.h"
- bool Ban::acceptConnection(uint32_t clientip)
- {
- std::lock_guard<std::recursive_mutex> lockClass(lock);
- uint64_t currentTime = OTSYS_TIME();
- auto it = ipConnectMap.find(clientip);
- if (it == ipConnectMap.end()) {
- ipConnectMap.emplace(clientip, ConnectBlock(currentTime, 0, 1));
- return true;
- }
- ConnectBlock& connectBlock = it->second;
- if (connectBlock.blockTime > currentTime) {
- connectBlock.blockTime += 250;
- return false;
- }
- int64_t timeDiff = currentTime - connectBlock.lastAttempt;
- connectBlock.lastAttempt = currentTime;
- if (timeDiff <= 5000) {
- if (++connectBlock.count > 5) {
- connectBlock.count = 0;
- if (timeDiff <= 500) {
- connectBlock.blockTime = currentTime + 3000;
- return false;
- }
- }
- } else {
- connectBlock.count = 1;
- }
- return true;
- }
- bool IOBan::isAccountBanned(uint32_t accountId, BanInfo& banInfo)
- {
- Database* db = Database::getInstance();
- std::ostringstream query;
- query << "SELECT `reason`, `expires_at`, `banned_at`, `banned_by`, (SELECT `name` FROM `players` WHERE `id` = `banned_by`) AS `name` FROM `account_bans` WHERE `account_id` = " << accountId;
- DBResult_ptr result = db->storeQuery(query.str());
- if (!result) {
- return false;
- }
- int64_t expiresAt = result->getNumber<int64_t>("expires_at");
- if (expiresAt != 0 && time(nullptr) > expiresAt) {
- // Move the ban to history if it has expired
- query.str(std::string());
- query << "INSERT INTO `account_ban_history` (`account_id`, `reason`, `banned_at`, `expired_at`, `banned_by`) VALUES (" << accountId << ',' << db->escapeString(result->getString("reason")) << ',' << result->getNumber<time_t>("banned_at") << ',' << expiresAt << ',' << result->getNumber<uint32_t>("banned_by") << ')';
- g_databaseTasks.addTask(query.str());
- query.str(std::string());
- query << "DELETE FROM `account_bans` WHERE `account_id` = " << accountId;
- g_databaseTasks.addTask(query.str());
- return false;
- }
- banInfo.expiresAt = expiresAt;
- banInfo.reason = result->getString("reason");
- banInfo.bannedBy = result->getString("name");
- return true;
- }
- bool IOBan::isIpBanned(uint32_t clientip, BanInfo& banInfo)
- {
- if (clientip == 0) {
- return false;
- }
- Database* db = Database::getInstance();
- std::ostringstream query;
- query << "SELECT `reason`, `expires_at`, (SELECT `name` FROM `players` WHERE `id` = `banned_by`) AS `name` FROM `ip_bans` WHERE `ip` = " << clientip;
- DBResult_ptr result = db->storeQuery(query.str());
- if (!result) {
- return false;
- }
- int64_t expiresAt = result->getNumber<int64_t>("expires_at");
- if (expiresAt != 0 && time(nullptr) > expiresAt) {
- query.str(std::string());
- query << "DELETE FROM `ip_bans` WHERE `ip` = " << clientip;
- g_databaseTasks.addTask(query.str());
- return false;
- }
- banInfo.expiresAt = expiresAt;
- banInfo.reason = result->getString("reason");
- banInfo.bannedBy = result->getString("name");
- return true;
- }
- bool IOBan::isPlayerBanned(uint32_t playerId, BanInfo& banInfo)
- {
- Database* db = Database::getInstance();
- std::ostringstream query;
- query << "SELECT `reason`, `expires_at`, `banned_at`, `banned_by`, (SELECT `name` FROM `players` WHERE `id` = `banned_by`) AS `name` FROM `player_bans` WHERE `player_id` = " << playerId << " AND (`expires_at` > " << time(nullptr) << " OR `expires_at` = 0)";
- DBResult_ptr result = db->storeQuery(query.str());
- if (!result) {
- return false;
- }
- banInfo.expiresAt = result->getNumber<int64_t>("expires_at");
- banInfo.reason = result->getString("reason");
- banInfo.bannedBy = result->getString("name");
- return true;
- }
- bool IOBan::isPlayerNamelocked(uint32_t playerId)
- {
- std::ostringstream query;
- query << "SELECT 1 FROM `player_namelocks` WHERE `player_id` = " << playerId;
- return Database::getInstance()->storeQuery(query.str()).get() != nullptr;
- }
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