X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_connectban.cpp;h=fcb4b09ed8dcb9c2a69473808458801007fd35ac;hb=55fa754510a00ea6691b9448389b006136d9e628;hp=8c39ae8ba0a2fab6bb519db29f6ab1361053016b;hpb=d185decae97752368d5cf62311cbc0d1a52aa22c;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/modules/m_connectban.cpp b/src/modules/m_connectban.cpp
index 8c39ae8ba..fcb4b09ed 100644
--- a/src/modules/m_connectban.cpp
+++ b/src/modules/m_connectban.cpp
@@ -1,96 +1,105 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
  *
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include "inspircd.h"
 #include "xline.h"
 
-/* $ModDesc: Throttles the connections of any users who try connect flood */
-
-class ModuleQuitBan : public Module
+class ModuleConnectBan : public Module
 {
- private:
-	clonemap connects;
+	typedef std::map<irc::sockets::cidr_mask, unsigned int> ConnectMap;
+	ConnectMap connects;
 	unsigned int threshold;
 	unsigned int banduration;
+	unsigned int ipv4_cidr;
+	unsigned int ipv6_cidr;
+	std::string banmessage;
+
  public:
-	ModuleQuitBan(InspIRCd* Me) : Module(Me)
+	Version GetVersion() CXX11_OVERRIDE
 	{
-		Implementation eventlist[] = { I_OnUserConnect, I_OnGarbageCollect, I_OnRehash };
-		ServerInstance->Modules->Attach(eventlist, this, 3);
-		OnRehash(NULL, "");
+		return Version("Throttles the connections of IP ranges who try to connect flood.", VF_VENDOR);
 	}
 
-	virtual ~ModuleQuitBan()
+	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
 	{
-	}
+		ConfigTag* tag = ServerInstance->Config->ConfValue("connectban");
 
-	virtual Version GetVersion()
-	{
-		return Version(1,2,0,0,VF_VENDOR,API_VERSION);
+		ipv4_cidr = tag->getInt("ipv4cidr", 32, 1, 32);
+		ipv6_cidr = tag->getInt("ipv6cidr", 128, 1, 128);
+		threshold = tag->getInt("threshold", 10, 1);
+		banduration = tag->getDuration("duration", 10*60, 1);
+		banmessage = tag->getString("banmessage", "Your IP range has been attempting to connect too many times in too short a duration. Wait a while, and you will be able to connect.");
 	}
 
-	virtual void OnRehash(User* user, const std::string &parameter)
+	void OnSetUserIP(LocalUser* u) CXX11_OVERRIDE
 	{
-		ConfigReader Conf(ServerInstance);
-		std::string duration;
-
-		threshold = Conf.ReadInteger("connectban", "threshold", 0, true);
+		if (u->exempt)
+			return;
 
-		if (threshold == 0)
-			threshold = 10;
+		int range = 32;
 
-		duration = Conf.ReadValue("connectban", "duration", 0, true);
-
-		if (duration.empty())
-			duration = "10m";
-
-		banduration = ServerInstance->Duration(duration);
-	}
+		switch (u->client_sa.sa.sa_family)
+		{
+			case AF_INET6:
+				range = ipv6_cidr;
+			break;
+			case AF_INET:
+				range = ipv4_cidr;
+			break;
+		}
 
-	virtual void OnUserConnect(User *u)
-	{
-		clonemap::iterator i = connects.find(u->GetIPString());
+		irc::sockets::cidr_mask mask(u->client_sa, range);
+		ConnectMap::iterator i = connects.find(mask);
 
 		if (i != connects.end())
 		{
 			i->second++;
-			ServerInstance->Logs->Log("m_connectban",DEBUG, "Count for IP is now %d", i->second);
 
 			if (i->second >= threshold)
 			{
 				// Create zline for set duration.
-				ZLine* zl = new ZLine(ServerInstance, ServerInstance->Time(), banduration, ServerInstance->Config->ServerName, "Connect flooding", u->GetIPString());
-				if (ServerInstance->XLines->AddLine(zl,NULL))
-					ServerInstance->XLines->ApplyLines();
-				else
+				ZLine* zl = new ZLine(ServerInstance->Time(), banduration, ServerInstance->Config->ServerName, banmessage, mask.str());
+				if (!ServerInstance->XLines->AddLine(zl, NULL))
+				{
 					delete zl;
-
-				ServerInstance->SNO->WriteToSnoMask('x', "Connect flooding from IP %s (%d)", u->GetIPString(), threshold);
+					return;
+				}
+				ServerInstance->XLines->ApplyLines();
+				std::string maskstr = mask.str();
+				std::string timestr = InspIRCd::TimeString(zl->expiry);
+				ServerInstance->SNO->WriteGlobalSno('x',"Module m_connectban added Z:line on *@%s to expire on %s: Connect flooding",
+					maskstr.c_str(), timestr.c_str());
+				ServerInstance->SNO->WriteGlobalSno('a', "Connect flooding from IP range %s (%d)", maskstr.c_str(), threshold);
 				connects.erase(i);
 			}
 		}
 		else
 		{
-			connects[u->GetIPString()] = 1;
-			ServerInstance->Logs->Log("m_quitban",DEBUG, "Added new record");
+			connects[mask] = 1;
 		}
 	}
 
-	virtual void OnGarbageCollect()
+	void OnGarbageCollect()
 	{
-		ServerInstance->Logs->Log("m_quitban",DEBUG, "Clearing map.");
+		ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Clearing map.");
 		connects.clear();
 	}
 };
 
-MODULE_INIT(ModuleQuitBan)
+MODULE_INIT(ModuleConnectBan)