Add m_quitban: Bans IPs that connect/disconnect more than X times per 3600 seconds for a configurable duration. Default is 10 quits, 10 minute ban.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@8692 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 95 insertions, 0 deletions

diff --git a/src/modules/m_quitban.cpp b/src/modules/m_quitban.cpp
new file mode 100644
index 000000000..00a47beeb
--- /dev/null
+++ b/src/modules/m_quitban.cpp
@@ -0,0 +1,95 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "xline.h"
+
+/* $ModDesc: Creates a snomask with notices whenever a new channel is created */
+
+class ModuleChanCreate : public Module
+{
+ private:
+	clonemap quits;
+	unsigned int threshold;
+	unsigned int banduration;
+ public:
+	ModuleChanCreate(InspIRCd* Me) : Module(Me)
+	{
+		Implementation eventlist[] = { I_OnUserDisconnect, I_OnGarbageCollect, I_OnRehash };
+		ServerInstance->Modules->Attach(eventlist, this, 3);
+		OnRehash(NULL, "");
+	}
+	
+	virtual ~ModuleChanCreate()
+	{
+	}
+	
+	virtual Version GetVersion()
+	{
+		return Version(1,1,0,0,VF_VENDOR,API_VERSION);
+	}
+
+	virtual void OnRehash(User* user, const std::string &parameter)
+	{
+		ConfigReader Conf(ServerInstance);
+		std::string duration;
+
+		threshold = Conf.ReadInteger("quitban", "threshold", 0, true);
+
+		if (threshold == 0)
+			threshold = 10;
+
+		duration = Conf.ReadValue("quitban", "duration", 0, true);
+
+		if (duration.empty())
+			duration = "10m";
+
+		banduration = ServerInstance->Duration(duration);
+	}
+
+	virtual void OnUserDisconnect(User *u)
+	{
+		clonemap::iterator i = quits.find(u->GetIPString());
+
+		if (i != quits.end())
+		{
+			i->second++;
+			ServerInstance->Log(DEBUG, "quitban: 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, "Quit flooding", u->GetIPString());
+				if (ServerInstance->XLines->AddLine(zl,NULL))
+					ServerInstance->XLines->ApplyLines();
+				else
+					delete zl;
+
+				ServerInstance->SNO->WriteToSnoMask('x', "Quit flooding from IP %s (%d)", u->GetIPString(), threshold);
+			}
+		}
+		else
+		{
+			quits[u->GetIPString()] = 1;
+			ServerInstance->Log(DEBUG, "quitban: Added new record");
+		}
+	}
+
+	virtual void OnGarbageCollect()
+	{
+		ServerInstance->Log(DEBUG, "quitban: Clearing map.");
+		quits.clear();
+	}
+};
+
+MODULE_INIT(ModuleChanCreate)