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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
*
* 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/>.
*/
/* $Core */
#include "inspircd.h"
#include "bancache.h"
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
else
{
if (ServerInstance->Time() > i->second->Expiry)
{
ServerInstance->Logs->Log("BANCACHE", DEBUG, "Hit on " + ip + " is out of date, removing!");
delete i->second;
BanHash->erase(i);
return NULL; // out of date
}
return i->second; // hit.
}
}
unsigned int BanCacheManager::RemoveEntries(const std::string &type, bool positive)
{
int removed = 0;
BanCacheHash::iterator safei;
if (positive)
ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCacheManager::RemoveEntries(): Removing positive hits for " + type);
else
ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCacheManager::RemoveEntries(): Removing negative hits for " + type);
for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); )
{
safei = n;
safei++;
BanCacheHit *b = n->second;
/* Safe to delete items here through iterator 'n' */
if (b->Type == type || !positive) // if removing negative hits, ignore type..
{
if ((positive && !b->Reason.empty()) || b->Reason.empty())
{
/* we need to remove this one. */
ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCacheManager::RemoveEntries(): Removing a hit on " + n->first);
delete b;
BanHash->erase(n); // WORD TO THE WISE: don't use RemoveHit here, because we MUST remove the iterator in a safe way.
removed++;
}
}
/* End of safe section */
n = safei;
}
return removed;
}
void BanCacheManager::RehashCache()
{
BanCacheHash* NewHash = new BanCacheHash();
BanCacheHash::iterator safei;
for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); )
{
safei = n;
safei++;
/* Safe to delete items here through iterator 'n' */
BanCacheHit *b = n->second;
if (ServerInstance->Time() > b->Expiry)
{
/* we need to remove this one. */
delete b;
BanHash->erase(n); // WORD TO THE WISE: don't use RemoveHit here, because we MUST remove the iterator in a safe way.
}
else
{
/* Actually inserts a std::pair */
NewHash->insert(*n);
}
/* End of safe section */
n = safei;
}
delete BanHash;
BanHash = NewHash;
}
BanCacheManager::~BanCacheManager()
{
for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); ++n)
delete n->second;
delete BanHash;
}
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