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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
BanCacheHit::BanCacheHit(const std::string& type, const std::string& reason, time_t seconds)
: Type(type)
, Reason(reason)
, Expiry(ServerInstance->Time() + seconds)
{
}
BanCacheHit *BanCacheManager::AddHit(const std::string &ip, const std::string &type, const std::string &reason, time_t seconds)
{
BanCacheHit*& b = BanHash[ip];
if (b != NULL) // can't have two cache entries on the same IP, sorry..
return NULL;
b = new BanCacheHit(type, reason, (seconds ? seconds : 86400));
return b;
}
BanCacheHit *BanCacheManager::GetHit(const std::string &ip)
{
BanCacheHash::iterator i = this->BanHash.find(ip);
if (i == this->BanHash.end())
return NULL; // free and safe
if (RemoveIfExpired(i))
return NULL; // expired
return i->second; // hit.
}
bool BanCacheManager::RemoveIfExpired(BanCacheHash::iterator& it)
{
if (ServerInstance->Time() < it->second->Expiry)
return false;
ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "Hit on " + it->first + " is out of date, removing!");
delete it->second;
it = BanHash.erase(it);
return true;
}
void BanCacheManager::RemoveEntries(const std::string& type, bool positive)
{
if (positive)
ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCacheManager::RemoveEntries(): Removing positive hits for " + type);
else
ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCacheManager::RemoveEntries(): Removing all negative hits");
for (BanCacheHash::iterator i = BanHash.begin(); i != BanHash.end(); )
{
if (RemoveIfExpired(i))
continue; // updates the iterator if expired
BanCacheHit* b = i->second;
bool remove = false;
if (positive)
{
// when removing positive hits, remove only if the type matches
remove = b->IsPositive() && (b->Type == type);
}
else
{
// when removing negative hits, remove all of them
remove = !b->IsPositive();
}
if (remove)
{
/* we need to remove this one. */
ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCacheManager::RemoveEntries(): Removing a hit on " + i->first);
delete b;
i = BanHash.erase(i);
}
else
++i;
}
}
BanCacheManager::~BanCacheManager()
{
for (BanCacheHash::iterator n = BanHash.begin(); n != BanHash.end(); ++n)
delete n->second;
}
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