src/bancache.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core: libIRCDbancache */
  15
  16 #include "inspircd.h"
  17 #include "bancache.h"
  18
  19 BanCacheHit *BanCacheManager::AddHit(const std::string &ip, const std::string &type, const std::string &reason)
  20 {
  21         BanCacheHit *b;
  22
  23
  24         if (this->BanHash->find(ip) != this->BanHash->end()) // can't have two cache entries on the same IP, sorry..
  25                 return NULL;
  26
  27         b = new BanCacheHit(ServerInstance, ip, type, reason);
  28
  29         this->BanHash->insert(std::make_pair(ip, b));
  30         return b;
  31 }
  32
  33 BanCacheHit *BanCacheManager::GetHit(const std::string &ip)
  34 {
  35         BanCacheHash::iterator i = this->BanHash->find(ip);
  36
  37         if (i == this->BanHash->end())
  38                 return NULL; // free and safe
  39         else
  40                 return i->second; // hit.
  41 }
  42
  43 bool BanCacheManager::RemoveHit(BanCacheHit *b)
  44 {
  45         BanCacheHash::iterator i;
  46
  47         if (!b)
  48                 return false; // I don't think so.
  49
  50         i = this->BanHash->find(b->IP);
  51
  52         if (i == this->BanHash->end())
  53         {
  54                 // err..
  55                 ServerInstance->Log(DEBUG, "BanCacheManager::RemoveHit(): I got asked to remove a hit that wasn't in the hash(?)");
  56         }
  57         else
  58         {
  59                 this->BanHash->erase(i);
  60         }
  61
  62         delete b;
  63         return true;
  64 }
  65
  66 int BanCacheManager::RemoveEntries(const std::string &type, bool positive)
  67 {
  68         int removed = 0;
  69
  70         BanCacheHash::iterator safei;
  71
  72         for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); )
  73         {
  74                 safei = n;
  75                 safei++;
  76
  77                 BanCacheHit *b = n->second;
  78
  79                 /* Safe to delete items here through iterator 'n' */
  80                 if (b->Type == type)
  81                 {
  82                         if ((positive && !b->Reason.empty()) || b->Reason.empty())
  83                         {
  84                                 /* we need to remove this one. */
  85                                 delete b;
  86                                 b = NULL;
  87                                 BanHash->erase(n);
  88                                 removed++;
  89                         }
  90                 }
  91
  92                 /* End of safe section */
  93                 n = safei;
  94         }
  95
  96
  97         return removed;
  98 }
  99
 100 void BanCacheManager::RehashCache()
 101 {
 102         BanCacheHash* NewHash = new BanCacheHash();
 103
 104         BanCacheHash::iterator safei;
 105         for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); )
 106         {
 107                 safei = n;
 108                 safei++;
 109
 110                 /* Safe to delete items here through iterator 'n' */
 111
 112                 /* Actually inserts a std::pair */
 113                 NewHash->insert(*n);
 114
 115                 /* End of safe section */
 116
 117                 n = safei;
 118         }
 119
 120         delete BanHash;
 121         BanHash = NewHash;
 122 }