148 lines
3.3 KiB
C++
148 lines
3.3 KiB
C++
// FileZilla Server - a Windows ftp server
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// Copyright (C) 2002-2007 - Tim Kosse <tim.kosse@gmx.de>
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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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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// 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
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#include "stdafx.h"
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#include "autobanmanager.h"
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#include "Options.h"
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int CAutoBanManager::m_refCount = 0;
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std::map<CStdString, time_t> CAutoBanManager::m_banMap;
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std::map<CStdString, CAutoBanManager::t_attemptInfo> CAutoBanManager::m_attemptMap;
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CCriticalSectionWrapper CAutoBanManager::m_sync;
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CAutoBanManager::CAutoBanManager(COptions* pOptions)
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: m_pOptions(pOptions)
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{
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m_sync.Lock();
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m_refCount++;
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m_sync.Unlock();
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}
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CAutoBanManager::~CAutoBanManager()
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{
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m_sync.Lock();
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m_refCount--;
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if (!m_refCount)
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{
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m_banMap.clear();
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m_attemptMap.clear();
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}
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m_sync.Unlock();
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}
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bool CAutoBanManager::IsBanned(const CStdString& ip)
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{
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bool enabled = m_pOptions->GetOptionVal(OPTION_AUTOBAN_ENABLE) != 0;
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if (!enabled)
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return false;
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m_sync.Lock();
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bool banned = m_banMap.find(ip) != m_banMap.end();
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m_sync.Unlock();
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return banned;
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}
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bool CAutoBanManager::RegisterAttempt(const CStdString& ip)
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{
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bool enabled = m_pOptions->GetOptionVal(OPTION_AUTOBAN_ENABLE) != 0;
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if (!enabled)
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return false;
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const int maxAttempts = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_ATTEMPTS);
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const int banType = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_TYPE);
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m_sync.Lock();
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if (m_banMap.find(ip) != m_banMap.end())
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{
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m_sync.Unlock();
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return true;
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}
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std::map<CStdString, t_attemptInfo>::iterator iter = m_attemptMap.find(ip);
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if (iter == m_attemptMap.end())
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{
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t_attemptInfo info;
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info.attempts = 1;
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info.time = time(0);
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m_attemptMap[ip] = info;
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}
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else
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{
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if (++iter->second.attempts >= maxAttempts)
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{
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m_attemptMap.erase(iter);
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if (!banType)
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m_banMap[ip] = time(0);
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else
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{
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// TODO
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}
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m_sync.Unlock();
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return true;
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}
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else
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iter->second.time = time(0);
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}
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m_sync.Unlock();
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return false;
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}
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void CAutoBanManager::PurgeOutdated()
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{
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const int banTime = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_BANTIME) * 60 * 60;
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time_t now = time(0);
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m_sync.Lock();
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std::map<CStdString, time_t>::iterator iter = m_banMap.begin();
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while (iter != m_banMap.end())
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{
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const time_t diff = now - iter->second;
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if (diff > banTime)
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{
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std::map<CStdString, time_t>::iterator remove = iter++;
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m_banMap.erase(remove);
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}
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else
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iter++;
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}
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{
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std::map<CStdString, t_attemptInfo>::iterator iter = m_attemptMap.begin();
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while (iter != m_attemptMap.end())
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{
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const time_t diff = now - iter->second.time;
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if (diff > banTime)
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{
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std::map<CStdString, t_attemptInfo>::iterator remove = iter++;
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m_attemptMap.erase(remove);
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}
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else
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iter++;
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}
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}
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m_sync.Unlock();
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}
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