X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_connflood.cpp;h=1f8286e77a8a21cf31a48d8a6b246094fd85cc0a;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=47b19fdf4e7920636236c8199056ee51010ed3e4;hpb=f2acdbc3820f0f4f5ef76a0a64e73d2a320df91f;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/modules/m_connflood.cpp b/src/modules/m_connflood.cpp
index 47b19fdf4..1f8286e77 100644
--- a/src/modules/m_connflood.cpp
+++ b/src/modules/m_connflood.cpp
@@ -1,105 +1,117 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2013, 2018-2021 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012-2013 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006-2007, 2010 Craig Edwards <brain@inspircd.org>
  *
- * 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 "users.h"
-#include "modules.h"
-
-/* $ModDesc: Connection throttle */
 
-int conns = 0, throttled = 0;
+#include "inspircd.h"
 
 class ModuleConnFlood : public Module
 {
-private:
-	int seconds, maxconns, timeout, boot_wait;
+ private:
+	unsigned int seconds;
+	unsigned int timeout;
+	unsigned int boot_wait;
+	unsigned int conns;
+	unsigned int maxconns;
+	bool throttled;
 	time_t first;
 	std::string quitmsg;
 
-	ConfigReader* conf;
-	
-
-public:
-	ModuleConnFlood(InspIRCd* Me) : Module(Me)
+	static bool IsExempt(LocalUser* user)
 	{
-		
-		InitConf();
-	}
+		// E-lined and already banned users shouldn't be hit.
+		if (user->exempt || user->quitting)
+			return true;
 
-	virtual ~ModuleConnFlood()
-	{
+		// Users in an exempt class shouldn't be hit.
+		return user->GetClass() && !user->GetClass()->config->getBool("useconnflood", true);
 	}
 
-	virtual Version GetVersion()
+public:
+	ModuleConnFlood()
+		: conns(0), throttled(false)
 	{
-		return Version(1,1,0,0,VF_VENDOR,API_VERSION);
 	}
 
-	void Implements(char* List)
+	Version GetVersion() CXX11_OVERRIDE
 	{
-		List[I_OnRehash] = List[I_OnUserRegister] = 1;
+		return Version("Throttles excessive connections to the server.", VF_VENDOR);
 	}
-   
-	void InitConf()
+
+	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
 	{
 		/* read configuration variables */
-		conf = new ConfigReader(ServerInstance);
+		ConfigTag* tag = ServerInstance->Config->ConfValue("connflood");
 		/* throttle configuration */
-		seconds = conf->ReadInteger("connflood", "seconds", 0, true);
-		maxconns = conf->ReadInteger("connflood", "maxconns", 0, true);
-		timeout = conf->ReadInteger("connflood", "timeout", 0, true);
-		quitmsg = conf->ReadValue("connflood", "quitmsg", 0);
+		seconds = tag->getDuration("period", tag->getDuration("seconds", 30));
+		maxconns = tag->getUInt("maxconns", 3);
+		timeout = tag->getDuration("timeout", 30);
+		quitmsg = tag->getString("quitmsg");
 
 		/* seconds to wait when the server just booted */
-		boot_wait = conf->ReadInteger("connflood", "bootwait", 0, true);
+		boot_wait = tag->getDuration("bootwait", 60*2);
 
 		first = ServerInstance->Time();
 	}
- 
-	virtual int OnUserRegister(userrec* user)
+
+	ModResult OnUserRegister(LocalUser* user) CXX11_OVERRIDE
 	{
+		if (IsExempt(user))
+			return MOD_RES_PASSTHRU;
+
 		time_t next = ServerInstance->Time();
-		
+
 		if ((ServerInstance->startup_time + boot_wait) > next)
-			return 0;
-		
+			return MOD_RES_PASSTHRU;
+
 		/* time difference between first and latest connection */
 		time_t tdiff = next - first;
 
 		/* increase connection count */
 		conns++;
 
-		if (throttled == 1)
+		if (throttled)
 		{
 			if (tdiff > seconds + timeout)
 			{
 				/* expire throttle */
-				throttled = 0;
-				ServerInstance->WriteOpers("*** Connection throttle deactivated");
-				return 0;
+				throttled = false;
+				ServerInstance->SNO->WriteGlobalSno('a', "Connection throttle deactivated");
+				return MOD_RES_PASSTHRU;
 			}
-			userrec::QuitUser(ServerInstance, user, quitmsg);
-			return 1;
+
+			ServerInstance->Users->QuitUser(user, quitmsg);
+			return MOD_RES_DENY;
 		}
 
 		if (tdiff <= seconds)
 		{
 			if (conns >= maxconns)
 			{
-				throttled = 1;
-				ServerInstance->WriteOpers("*** Connection throttle activated");
-				userrec::QuitUser(ServerInstance, user, quitmsg);
-				return 1;
+				throttled = true;
+				ServerInstance->SNO->WriteGlobalSno('a', "Connection throttle activated");
+				ServerInstance->Users->QuitUser(user, quitmsg);
+				return MOD_RES_DENY;
 			}
 		}
 		else
@@ -107,14 +119,8 @@ public:
 			conns = 1;
 			first = next;
 		}
-		return 0;
+		return MOD_RES_PASSTHRU;
 	}
-
-	virtual void OnRehash(userrec* user, const std::string &parameter)
-	{
-		InitConf();
-	}
-
 };
 
 MODULE_INIT(ModuleConnFlood)