Show a better warning when certtool/openssl are missing.

[user/henk/code/inspircd.git] / src / modules / m_connflood.cpp

diff --git a/src/modules/m_connflood.cpp b/src/modules/m_connflood.cpp
index a7a7d33b625c0997a9f9a11d33e3afeeef6379c8..f77691e3276a8efe2f6649b4da04d31a588b79fc 100644 (file)
--- a/src/modules/m_connflood.cpp
+++ b/src/modules/m_connflood.cpp
@@ -1,87 +1,81 @@
-/*   +------------------------------------+
- *   | Inspire Internet Relay Chat Daemon |
- *   +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                    E-mail:
- *             <brain@chatspike.net>
- *             <Craig@chatspike.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
  *
- *     --- This module contributed by pippijn ---
- * 
- * Written by Craig Edwards, Craig McLure, and others.
- * 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/>.
  */
 
-using namespace std;
 
-#include "users.h"
-#include "modules.h"
-#include "helperfuncs.h"
 #include "inspircd.h"
 
 /* $ModDesc: Connection throttle */
 
-int conns = 0, throttled = 0;
-extern time_t TIME;
-
-extern InspIRCd* ServerInstance;
-
 class ModuleConnFlood : public Module
 {
 private:
-       int seconds, maxconns, timeout, boot_wait;
+       int seconds, timeout, boot_wait;
+       unsigned int conns;
+       unsigned int maxconns;
+       bool throttled;
        time_t first;
        std::string quitmsg;
 
-       ConfigReader* conf;
-       
-
 public:
-       ModuleConnFlood(InspIRCd* Me) : Module::Module(Me)
+       ModuleConnFlood()
+               : conns(0), throttled(false)
        {
-               
-               InitConf();
        }
 
-       virtual ~ModuleConnFlood()
+       void init()
        {
+               InitConf();
+               Implementation eventlist[] = { I_OnRehash, I_OnUserRegister };
+               ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
        }
 
        virtual Version GetVersion()
        {
-               return Version(1,0,0,0,0);
+               return Version("Connection throttle", VF_VENDOR);
        }
 
-       void Implements(char* List)
-       {
-               List[I_OnRehash] = List[I_OnUserRegister] = 1;
-       }
-   
        void InitConf()
        {
                /* read configuration variables */
-               conf = new ConfigReader;
+               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->getInt("seconds");
+               maxconns = tag->getInt("maxconns");
+               timeout = tag->getInt("timeout");
+               quitmsg = tag->getString("quitmsg");
 
                /* seconds to wait when the server just booted */
-               boot_wait = conf->ReadInteger("connflood", "bootwait", 0, true);
+               boot_wait = tag->getInt("bootwait");
 
-               first = TIME;
+               first = ServerInstance->Time();
        }
- 
-       virtual void OnUserRegister(userrec* user)
+
+       virtual ModResult OnUserRegister(LocalUser* user)
        {
-               time_t next = TIME;
-               if (!first)
-                       first = next - boot_wait;
+               if (user->exempt)
+                       return MOD_RES_PASSTHRU;
+
+               time_t next = ServerInstance->Time();
+
+               if ((ServerInstance->startup_time + boot_wait) > next)
+                       return MOD_RES_PASSTHRU;
 
                /* time difference between first and latest connection */
                time_t tdiff = next - first;
@@ -89,27 +83,28 @@ public:
                /* increase connection count */
                conns++;
 
-               if (throttled == 1)
+               if (throttled)
                {
                        if (tdiff > seconds + timeout)
                        {
                                /* expire throttle */
-                               throttled = 0;
-                               ServerInstance->WriteOpers("*** Connection throttle deactivated");
-                               return;
+                               throttled = false;
+                               ServerInstance->SNO->WriteGlobalSno('a', "Connection throttle deactivated");
+                               return MOD_RES_PASSTHRU;
                        }
-                       userrec::QuitUser(ServerInstance, user, quitmsg);
-                       return;
+
+                       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;
+                               throttled = true;
+                               ServerInstance->SNO->WriteGlobalSno('a', "Connection throttle activated");
+                               ServerInstance->Users->QuitUser(user, quitmsg);
+                               return MOD_RES_DENY;
                        }
                }
                else
@@ -117,35 +112,14 @@ public:
                        conns = 1;
                        first = next;
                }
+               return MOD_RES_PASSTHRU;
        }
 
-       virtual void OnRehash(const std::string &parameter)
+       virtual void OnRehash(User* user)
        {
                InitConf();
        }
 
 };
 
-
-class ModuleConnFloodFactory : public ModuleFactory
-{
-public:
-       ModuleConnFloodFactory()
-       {
-       }
-
-       ~ModuleConnFloodFactory()
-       {
-       }
-    
-       virtual Module * CreateModule(InspIRCd* Me)
-       {
-               return new ModuleConnFlood(Me);
-       }
-};
-
-
-extern "C" void * init_module( void )
-{
-       return new ModuleConnFloodFactory;
-}
+MODULE_INIT(ModuleConnFlood)