Header update: 2007 -> 2008

[user/henk/code/inspircd.git] / src / bancache.cpp

diff --git a/src/bancache.cpp b/src/bancache.cpp
index d54b26caf09790a02c97b7c7be59762bb364c6bc..3678dda0bd13c13dc4641722200c22b0e392c5a8 100644 (file)
--- 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Log(DEBUG, "Hit on " + ip + " is out of date, removing!");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+                       return NULL; // out of date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;
+}