X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fbancache.cpp;h=3678dda0bd13c13dc4641722200c22b0e392c5a8;hb=e4acbc95b8b6cd5b28d38a2242c02e8ff4991e4a;hp=d54b26caf09790a02c97b7c7be59762bb364c6bc;hpb=841dc636d191bafd714fc72e5e517bf4d64d64b6;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/bancache.cpp b/src/bancache.cpp index d54b26caf..3678dda0b 100644 --- a/src/bancache.cpp +++ b/src/bancache.cpp @@ -2,7 +2,7 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team + * InspIRCd: (C) 2002-2008 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see @@ -13,4 +13,135 @@ /* $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Log(DEBUG, "Hit on " + ip + " is out of date, removing!"); + RemoveHit(i-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second); + return NULL; // out of date + } + + return i-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; +}