]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_joinflood.cpp
In the grand tradition of huge fucking commits:
[user/henk/code/inspircd.git] / src / modules / m_joinflood.cpp
index 6cc54db685fa90a79409a5821bf865bfeb6a4a9a..6840e155c18fe74538c795f23bcce4a17fba591f 100644 (file)
@@ -2,30 +2,22 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
+ *  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.
  *
  * ---------------------------------------------------
  */
 
-using namespace std;
-
-#include <stdio.h>
-#include <map>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
+#include "inspircd.h"
 
 /* $ModDesc: Provides channel mode +j (join flood protection) */
 
-class joinfloodsettings
+/** Holds settings and state associated with channel mode +j
+ */
+class joinfloodsettings : public classbase
 {
  public:
 
@@ -35,23 +27,22 @@ class joinfloodsettings
        time_t unlocktime;
        int counter;
        bool locked;
+       InspIRCd* ServerInstance;
 
        joinfloodsettings() : secs(0), joins(0) {};
+
        joinfloodsettings(int b, int c) : secs(b), joins(c)
        {
                reset = time(NULL) + secs;
                counter = 0;
                locked = false;
-               log(DEBUG,"Create new joinfloodsettings: %lu %lu",time(NULL),reset);
        };
 
        void addjoin()
        {
                counter++;
-               log(DEBUG,"joinflood counter is %d",counter);
                if (time(NULL) > reset)
                {
-                       log(DEBUG,"joinflood counter reset");
                        counter = 0;
                        reset = time(NULL) + secs;
                }
@@ -64,7 +55,6 @@ class joinfloodsettings
 
        void clear()
        {
-               log(DEBUG,"joinflood counter clear");
                counter = 0;
        }
 
@@ -87,20 +77,38 @@ class joinfloodsettings
 
        void lock()
        {
-               log(DEBUG,"joinflood lock");
                locked = true;
                unlocktime = time(NULL) + 60;
        }
 
 };
 
+/** Handles channel mode +j
+ */
 class JoinFlood : public ModeHandler
 {
  public:
-       JoinFlood() : ModeHandler('j', 1, 0, false, MODETYPE_CHANNEL, false) { }
+       JoinFlood(InspIRCd* Instance) : ModeHandler(Instance, 'j', 1, 0, false, MODETYPE_CHANNEL, false) { }
+
+       ModePair ModeSet(User* source, User* dest, Channel* channel, const std::string &parameter)
+       {
+               joinfloodsettings* x;
+               if (channel->GetExt("joinflood",x))
+                       return std::make_pair(true, ConvToStr(x->joins)+":"+ConvToStr(x->secs));
+               else
+                       return std::make_pair(false, parameter);
+       } 
+
+       bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, Channel* channel)
+       {
+               /* When TS is equal, the alphabetically later one wins */
+               return (their_param < our_param);
+       }
 
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
+       ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
        {
+               joinfloodsettings* dummy;
+
                if (adding)
                {
                        char ndata[MAXBUF];
@@ -120,39 +128,75 @@ class JoinFlood : public ModeHandler
                                else data++;
                        }
                        if (secs)
+
                        {
                                /* Set up the flood parameters for this channel */
                                int njoins = atoi(joins);
                                int nsecs = atoi(secs);
                                if ((njoins<1) || (nsecs<1))
                                {
-                                       WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
-                                       parameter = "";
+                                       source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);
+                                       parameter.clear();
                                        return MODEACTION_DENY;
                                }
                                else
                                {
-                                       if (!channel->GetExt("joinflood"))
+                                       if (!channel->GetExt("joinflood", dummy))
                                        {
+                                               parameter = ConvToStr(njoins) + ":" +ConvToStr(nsecs);
                                                joinfloodsettings *f = new joinfloodsettings(nsecs,njoins);
-                                               channel->Extend("joinflood",(char*)f);
+                                               channel->Extend("joinflood", f);
+                                               channel->SetMode('j', true);
+                                               channel->SetModeParam('j', parameter.c_str(), true);
                                                return MODEACTION_ALLOW;
                                        }
+                                       else
+                                       {
+                                               std::string cur_param = channel->GetModeParameter('j');
+                                               parameter = ConvToStr(njoins) + ":" +ConvToStr(nsecs);
+                                               if (cur_param == parameter)
+                                               {
+                                                       // mode params match
+                                                       return MODEACTION_DENY;
+                                               }
+                                               else
+                                               {
+                                                       // new mode param, replace old with new
+                                                       if ((nsecs > 0) && (njoins > 0))
+                                                       {
+                                                               joinfloodsettings* f;
+                                                               channel->GetExt("joinflood", f);
+                                                               delete f;
+                                                               f = new joinfloodsettings(nsecs,njoins);
+                                                               channel->Shrink("joinflood");
+                                                               channel->Extend("joinflood", f);
+                                                               channel->SetModeParam('j', cur_param.c_str(), false);
+                                                               channel->SetModeParam('j', parameter.c_str(), true);
+                                                               return MODEACTION_ALLOW;
+                                                       }
+                                                       else
+                                                       {
+                                                               return MODEACTION_DENY;
+                                                       }
+                                               }
+                                       }
                                }
                        }
                        else
                        {
-                               WriteServ(source->fd,"608 %s %s :Invalid flood parameter",source->nick,channel->name);
+                               source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);
                                return MODEACTION_DENY;
                        }
                }
                else
                {
-                       if (channel->GetExt("joinflood"))
+                       if (channel->GetExt("joinflood", dummy))
                        {
-                               joinfloodsettings *f = (joinfloodsettings*)channel->GetExt("joinflood");
+                               joinfloodsettings *f;
+                               channel->GetExt("joinflood", f);
                                DELETE(f);
                                channel->Shrink("joinflood");
+                               channel->SetMode('j', false);
                                return MODEACTION_ALLOW;
                        }
                }
@@ -162,29 +206,30 @@ class JoinFlood : public ModeHandler
 
 class ModuleJoinFlood : public Module
 {
-       Server *Srv;
+       
        JoinFlood* jf;
        
  public:
  
-       ModuleJoinFlood(Server* Me)
-               : Module::Module(Me)
+       ModuleJoinFlood(InspIRCd* Me)
+               : Module(Me)
        {
-               Srv = Me;
-               jf = new JoinFlood();
-               Srv->AddMode(jf, 'j');
+               
+               jf = new JoinFlood(ServerInstance);
+               if (!ServerInstance->AddMode(jf, 'j'))
+                       throw ModuleException("Could not add new modes!");
        }
        
-       virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+       virtual int OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs)
        {
                if (chan)
                {
-                       joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
-                       if (f)
+                       joinfloodsettings *f;
+                       if (chan->GetExt("joinflood", f))
                        {
                                if (f->islocked())
                                {
-                                       WriteServ(user->fd,"609 %s %s :This channel is temporarily unavailable (+j). Please try again later.",user->nick,chan->name);
+                                       user->WriteServ("609 %s %s :This channel is temporarily unavailable (+j). Please try again later.",user->nick,chan->name);
                                        return 1;
                                }
                        }
@@ -192,26 +237,26 @@ class ModuleJoinFlood : public Module
                return 0;
        }
 
-       virtual void OnUserJoin(userrec* user, chanrec* channel)
+       virtual void OnUserJoin(User* user, Channel* channel, bool &silent)
        {
-               joinfloodsettings *f = (joinfloodsettings*)channel->GetExt("joinflood");
-               if (f)
+               joinfloodsettings *f;
+               if (channel->GetExt("joinflood",f))
                {
                        f->addjoin();
                        if (f->shouldlock())
                        {
                                f->clear();
                                f->lock();
-                               WriteChannelWithServ((char*)Srv->GetServerName().c_str(), channel, "NOTICE %s :This channel has been closed to new users for 60 seconds because there have been more than %d joins in %d seconds.",channel->name,f->joins,f->secs);
+                               channel->WriteChannelWithServ((char*)ServerInstance->Config->ServerName, "NOTICE %s :This channel has been closed to new users for 60 seconds because there have been more than %d joins in %d seconds.", channel->name, f->joins, f->secs);
                        }
                }
        }
 
-       void OnChannelDelete(chanrec* chan)
+       void OnChannelDelete(Channel* chan)
        {
-               if (chan->GetExt("joinflood"))
+               joinfloodsettings *f;
+               if (chan->GetExt("joinflood",f))
                {
-                       joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
                        DELETE(f);
                        chan->Shrink("joinflood");
                }
@@ -219,47 +264,19 @@ class ModuleJoinFlood : public Module
 
        void Implements(char* List)
        {
-               List[I_On005Numeric] = List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserJoin] = 1;
-       }
-
-       virtual void On005Numeric(std::string &output)
-       {
-               InsertMode(output, "j", 3);
+               List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserJoin] = 1;
        }
 
        virtual ~ModuleJoinFlood()
        {
+               ServerInstance->Modes->DelMode(jf);
                DELETE(jf);
        }
        
        virtual Version GetVersion()
        {
-               return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
-       }
-};
-
-
-class ModuleJoinFloodFactory : public ModuleFactory
-{
- public:
-       ModuleJoinFloodFactory()
-       {
-       }
-       
-       ~ModuleJoinFloodFactory()
-       {
-       }
-       
-       virtual Module * CreateModule(Server* Me)
-       {
-               return new ModuleJoinFlood(Me);
+               return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
        }
-       
 };
 
-
-extern "C" void * init_module( void )
-{
-       return new ModuleJoinFloodFactory;
-}
-
+MODULE_INIT(ModuleJoinFlood)