Allow static build of inspircd without module support

[user/henk/code/inspircd.git] / include / bancache.h

diff --git a/include/bancache.h b/include/bancache.h
index 1edbbe5a11dfd578cf5fa2e4a175defd37e3fd9a..f143d51ebf7fbe6150d2e6d87cbd78d67fc57d14 100644 (file)
--- a/include/bancache.h
+++ b/include/bancache.h
@@ -2,8 +2,8 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  *         the file COPYING for details.
@@ -14,36 +14,88 @@
 #ifndef __BANCACHE_H
 #define __BANCACHE_H
 
-#include <string>
-
-class CoreExport BanCacheHit : public classbase
+/** Stores a cached ban entry.
+ * Each ban has one of these hashed in a hash_map to make for faster removal
+ * of already-banned users in the case that they try to reconnect. As no wildcard
+ * matching is done on these IPs, the speed of the system is improved. These cache
+ * entries expire every few hours, which is a reasonable expiry for any reasonable
+ * sized network.
+ */
+class CoreExport BanCacheHit
 {
- private:
  public:
-       const std::string Type;
-       const std::string Reason;
-       const bool Banned;
-       const time_t Duration;
-       const time_t Creation;
-}
+       /** Type of cached ban
+        */
+       std::string Type;
+       /** Reason, shown as quit message
+        */
+       std::string Reason;
+       /** IP to match against, no wildcards here (of course)
+        */
+       std::string IP;
+       /** Time that the ban expires at
+        */
+       time_t Expiry;
+
+       BanCacheHit(const std::string &ip, const std::string &type, const std::string &reason)
+       {
+               this->Type = type;
+               this->Reason = reason;
+               this->IP = ip;
+               this->Expiry = ServerInstance->Time() + 86400; // a day. this might seem long, but entries will be removed as glines/etc expire.
+       }
 
-// must be defined after class BanCacheHit.
-typedef nspace::hash_map<std::string, BanCacheHit *, nspace::hash<std::string> > BanCacheHash;
+       // overridden to allow custom time
+       BanCacheHit(const std::string &ip, const std::string &type, const std::string &reason, time_t seconds)
+       {
+               this->Type = type;
+               this->Reason = reason;
+               this->IP = ip;
+               this->Expiry = ServerInstance->Time() + seconds;
+       }
+};
 
-class CoreExport BanCacheManager : public classbase
+/* A container of ban cache items.
+ * must be defined after class BanCacheHit.
+ */
+#if defined(WINDOWS) && !defined(HASHMAP_DEPRECATED)
+typedef nspace::hash_map<std::string, BanCacheHit*, nspace::hash_compare<std::string, std::less<std::string> > > BanCacheHash;
+#else
+typedef nspace::hash_map<std::string, BanCacheHit*, nspace::hash<std::string> > BanCacheHash;
+#endif
+
+/** A manager for ban cache, which allocates and deallocates and checks cached bans.
+ */
+class CoreExport BanCacheManager
 {
  private:
-       BanCacheHash *BanHash;
-       InspIRCd *ServerInstance;
+       BanCacheHash* BanHash;
  public:
-       BanCacheHit *AddHit(const std::string &ip, bool banned, const std::string &reason);
+
+       /** Creates and adds a Ban Cache item.
+        * @param ip The IP the item is for.
+        * @param type The type of ban cache item. std::string. .empty() means it's a negative match (user is allowed freely).
+        * @param reason The reason for the ban. Left .empty() if it's a negative match.
+        */
+       BanCacheHit *AddHit(const std::string &ip, const std::string &type, const std::string &reason);
+
+       // Overridden to allow an optional number of seconds before expiry
+       BanCacheHit *AddHit(const std::string &ip, const std::string &type, const std::string &reason, time_t seconds);
        BanCacheHit *GetHit(const std::string &ip);
+       bool RemoveHit(BanCacheHit *b);
+
+       /** Removes all entries of a given type, either positive or negative. Returns the number of hits removed.
+        * @param type The type of bancache entries to remove (e.g. 'G')
+        * @param positive Remove either positive (true) or negative (false) hits.
+        */
+       unsigned int RemoveEntries(const std::string &type, bool positive);
 
-       BanCacheManager(InspIRCd *Instance)
+       BanCacheManager()
        {
-               this->ServerInstance = Instance;
                this->BanHash = new BanCacheHash();
        }
-}
+       ~BanCacheManager();
+       void RehashCache();
+};
 
 #endif