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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
/* $Core: libIRCDbancache */
#include "inspircd.h"
#include "bancache.h"
BanCacheHit *BanCacheManager::AddHit(const std::string &ip, const std::string &type, const std::string &reason)
{
BanCacheHit *b;
if (this->BanHash->find(ip) != this->BanHash->end()) // can't have two cache entries on the same IP, sorry..
return NULL;
b = new BanCacheHit(ServerInstance, ip, type, reason);
this->BanHash->insert(std::make_pair(ip, b));
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 (time(NULL) > i->second->Expiry)
{
ServerInstance->Log(DEBUG, "Hit on " + ip + " is out of date, removing!");
RemoveHit(i->second);
return NULL; // out of date
}
return i->second; // hit.
}
}
bool BanCacheManager::RemoveHit(BanCacheHit *b)
{
BanCacheHash::iterator i;
if (!b)
return false; // I don't think so.
i = this->BanHash->find(b->IP);
if (i == this->BanHash->end())
{
// err..
ServerInstance->Log(DEBUG, "BanCacheManager::RemoveHit(): I got asked to remove a hit that wasn't in the hash(?)");
}
else
{
this->BanHash->erase(i);
}
delete b;
return true;
}
unsigned int BanCacheManager::RemoveEntries(const std::string &type, bool positive)
{
int removed = 0;
BanCacheHash::iterator safei;
if (positive)
ServerInstance->Log(DEBUG, "BanCacheManager::RemoveEntries(): Removing positive hits for " + type);
else
ServerInstance->Log(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->Log(DEBUG, "BanCacheManager::RemoveEntries(): Removing a hit on " + b->IP);
delete b;
b = NULL;
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 (time(NULL) > b->Expiry)
{
/* we need to remove this one. */
delete b;
b = NULL;
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;
}
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