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// FileZilla Server - a Windows ftp server
// Copyright (C) 2002-2007 - Tim Kosse <tim.kosse@gmx.de>
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "stdafx.h"
#include "autobanmanager.h"
#include "Options.h"
int CAutoBanManager::m_refCount = 0;
std::map<CStdString, time_t> CAutoBanManager::m_banMap;
std::map<CStdString, CAutoBanManager::t_attemptInfo> CAutoBanManager::m_attemptMap;
CCriticalSectionWrapper CAutoBanManager::m_sync;
CAutoBanManager::CAutoBanManager(COptions* pOptions)
: m_pOptions(pOptions)
{
m_sync.Lock();
m_refCount++;
m_sync.Unlock();
}
CAutoBanManager::~CAutoBanManager()
{
m_sync.Lock();
m_refCount--;
if (!m_refCount)
{
m_banMap.clear();
m_attemptMap.clear();
}
m_sync.Unlock();
}
bool CAutoBanManager::IsBanned(const CStdString& ip)
{
bool enabled = m_pOptions->GetOptionVal(OPTION_AUTOBAN_ENABLE) != 0;
if (!enabled)
return false;
m_sync.Lock();
bool banned = m_banMap.find(ip) != m_banMap.end();
m_sync.Unlock();
return banned;
}
bool CAutoBanManager::RegisterAttempt(const CStdString& ip)
{
bool enabled = m_pOptions->GetOptionVal(OPTION_AUTOBAN_ENABLE) != 0;
if (!enabled)
return false;
const int maxAttempts = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_ATTEMPTS);
const int banType = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_TYPE);
m_sync.Lock();
if (m_banMap.find(ip) != m_banMap.end())
{
m_sync.Unlock();
return true;
}
std::map<CStdString, t_attemptInfo>::iterator iter = m_attemptMap.find(ip);
if (iter == m_attemptMap.end())
{
t_attemptInfo info;
info.attempts = 1;
info.time = time(0);
m_attemptMap[ip] = info;
}
else
{
if (++iter->second.attempts >= maxAttempts)
{
m_attemptMap.erase(iter);
if (!banType)
m_banMap[ip] = time(0);
else
{
// TODO
}
m_sync.Unlock();
return true;
}
else
iter->second.time = time(0);
}
m_sync.Unlock();
return false;
}
void CAutoBanManager::PurgeOutdated()
{
const int banTime = (int)m_pOptions->GetOptionVal(OPTION_AUTOBAN_BANTIME) * 60 * 60;
time_t now = time(0);
m_sync.Lock();
std::map<CStdString, time_t>::iterator iter = m_banMap.begin();
while (iter != m_banMap.end())
{
const time_t diff = now - iter->second;
if (diff > banTime)
{
std::map<CStdString, time_t>::iterator remove = iter++;
m_banMap.erase(remove);
}
else
iter++;
}
{
std::map<CStdString, t_attemptInfo>::iterator iter = m_attemptMap.begin();
while (iter != m_attemptMap.end())
{
const time_t diff = now - iter->second.time;
if (diff > banTime)
{
std::map<CStdString, t_attemptInfo>::iterator remove = iter++;
m_attemptMap.erase(remove);
}
else
iter++;
}
}
m_sync.Unlock();
}
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