]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_chanfilter.cpp
Use ERR_BANLISTFULL in the chanfilter and exemptchanops modules.
[user/henk/code/inspircd.git] / src / modules / m_chanfilter.cpp
index 112bcb5c4b7d94b33ae778a0816b142f29f1a609..5591c7ef959788331465e2b3bf9d196c91f2d84f 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
+ *   Copyright (C) 2005 Craig McLure <craig@chatspike.net>
+ *   Copyright (C) 2005 Craig Edwards <craigedwards@brainbox.cc>
  *
- * ---------------------------------------------------
+ * 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 <stdio.h>
-#include <string>
-#include <vector>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
 
-/* $ModDesc: Provides channel-specific censor lists (like mode +G but varies from channel to channel) */
+#include "inspircd.h"
+#include "listmode.h"
+#include "modules/exemption.h"
 
-typedef std::vector<std::string> SpamList;
+enum
+{
+       // InspIRCd-specific.
+       ERR_ALREADYCHANFILTERED = 937,
+       ERR_NOSUCHCHANFILTER = 938
+};
 
-class ModuleChanFilter : public Module
+/** Handles channel mode +g
+ */
+class ChanFilter : public ListModeBase
 {
-       Server *Srv;
-       ConfigReader *Conf;
-       long MaxEntries;
-       
  public:
-       ModuleChanFilter(Server* Me)
-               : Module::Module(Me)
-       {
-               Srv = Me;
-               Conf = new ConfigReader;
-               Srv->AddExtendedListMode('g');
-               MaxEntries = Conf->ReadInteger("chanfilter","maxsize",0,true);
-               if (MaxEntries == 0)
-                       MaxEntries = 32;
-       }
-       
-        virtual void On005Numeric(std::string &output)
-        {
-                std::stringstream line(output);
-                std::string temp1, temp2;
-                while (!line.eof())
-                {
-                        line >> temp1;
-                        if (temp1.substr(0,10) == "CHANMODES=")
-                        {
-                                // append the chanmode to the end
-                                temp1 = temp1.substr(10,temp1.length());
-                                temp1 = "CHANMODES=g" + temp1;
-                        }
-                        temp2 = temp2 + temp1 + " ";
-                }
-               if (temp2.length())
-                       output = temp2.substr(0,temp2.length()-1);
-        }
-
-       virtual void OnUserPart(userrec* user, chanrec* channel)
+       unsigned long maxlen;
+
+       ChanFilter(Module* Creator) : ListModeBase(Creator, "filter", 'g', "End of channel spamfilter list", 941, 940, false, "chanfilter") { }
+
+       bool ValidateParam(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE
        {
-               // when the last user parts, delete the list
-               if (Srv->CountUsers(channel) == 1)
+               if (word.length() > maxlen)
                {
-                       SpamList* spamlist = (SpamList*)channel->GetExt("spam_list");
-                       if (spamlist)
-                       {
-                               channel->Shrink("spam_list");
-                               delete spamlist;
-                       }
+                       user->WriteNumeric(Numerics::InvalidModeParameter(chan, this, word, "Word is too long for the spamfilter list"));
+                       return false;
                }
+
+               return true;
        }
 
-       virtual void OnRehash(std::string parameter)
+       void TellAlreadyOnList(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE
        {
-               delete Conf;
-               Conf = new ConfigReader;
-               // re-read our config options on a rehash
-               MaxEntries = Conf->ReadInteger("chanfilter","maxsize",0,true);
+               user->WriteNumeric(ERR_ALREADYCHANFILTERED, chan->name, InspIRCd::Format("The word %s is already on the spamfilter list", word.c_str()));
        }
 
-        virtual int ProcessMessages(userrec* user,chanrec* chan,std::string &text)
-        {
-               char buffer[MAXBUF];
-               strlcpy(buffer,text.c_str(),MAXBUF);
-               for (unsigned int j = 0; j < strlen(buffer); j++)
-                       buffer[j] = tolower(buffer[j]);
-               SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
-               if (spamlist)
-               {
-                       for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
-                       {
-                               if (strstr(buffer,i->c_str()))
-                               {
-                                       WriteServ(user->fd,"936 %s %s :Your message contained a censored word, and was blocked",user->nick, chan->name);
-                                       return 1;
-                               }
-                       }
-               }
-               return 0;
+       void TellNotSet(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE
+       {
+               user->WriteNumeric(ERR_NOSUCHCHANFILTER, chan->name, "No such spamfilter word is set");
        }
+};
+
+class ModuleChanFilter : public Module
+{
+       CheckExemption::EventProvider exemptionprov;
+       ChanFilter cf;
+       bool hidemask;
+       bool notifyuser;
+
+ public:
 
-       virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
+       ModuleChanFilter()
+               : exemptionprov(this)
+               , cf(this)
        {
-               if (target_type == TYPE_CHANNEL)
-               {
-                       return ProcessMessages(user,(chanrec*)dest,text);
-               }
-               else return 0;
        }
 
-       virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
+       void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
        {
-               if (target_type == TYPE_CHANNEL)
-               {
-                       return ProcessMessages(user,(chanrec*)dest,text);
-               }
-               else return 0;
+               ConfigTag* tag = ServerInstance->Config->ConfValue("chanfilter");
+               hidemask = tag->getBool("hidemask");
+               cf.maxlen = tag->getUInt("maxlen", 35, 10, 100);
+               notifyuser = tag->getBool("notifyuser", true);
+               cf.DoRehash();
        }
-       
-       virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
+
+       ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
        {
-               if ((modechar == 'g') && (type == MT_CHANNEL))
-               {
-                       chanrec* chan = (chanrec*)target;
+               if (target.type != MessageTarget::TYPE_CHANNEL)
+                       return MOD_RES_PASSTHRU;
 
-                       for (unsigned int j = 0; j < params[0].length(); j++)
-                               params[0][j] = tolower(params[0][j]);
+               Channel* chan = target.Get<Channel>();
+               ModResult res = CheckExemption::Call(exemptionprov, user, chan, "filter");
 
-                       std::string param = params[0];
-               
-                       if (mode_on)
-                       {
-                               SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
-                               if (!spamlist)
-                               {
-                                       spamlist = new SpamList;
-                                       chan->Extend("spam_list",(char*)spamlist);
-                               }
-                               if (spamlist->size() < (unsigned)MaxEntries)
-                               {
-                                       for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
-                                       {
-                                               if (*i == params[0])
-                                               {
-                                                       WriteServ(user->fd,"937 %s %s :The word %s is already on the spamfilter list",user->nick, chan->name,params[0].c_str());
-                                                       return -1;
-                                               }
-                                       }
-                                       spamlist->push_back(params[0]);
-                                       return 1;
-                               }
-                               WriteServ(user->fd,"939 %s %s :Channel spamfilter list is full",user->nick, chan->name);
-                               return -1;
-                       }
-                       else
+               if (!IS_LOCAL(user) || res == MOD_RES_ALLOW)
+                       return MOD_RES_PASSTHRU;
+
+               ListModeBase::ModeList* list = cf.GetList(chan);
+
+               if (list)
+               {
+                       for (ListModeBase::ModeList::iterator i = list->begin(); i != list->end(); i++)
                        {
-                               SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
-                               if (spamlist)
+                               if (InspIRCd::Match(details.text, i->mask))
                                {
-                                       for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
+                                       if (!notifyuser)
                                        {
-                                               if (*i == params[0])
-                                               {
-                                                       spamlist->erase(i);
-                                                       return 1;
-                                               }
+                                               details.echo_original = true;
+                                               return MOD_RES_DENY;
                                        }
-                               }
-                               WriteServ(user->fd,"938 %s %s :No such spamfilter word is set",user->nick, chan->name);
-                               return -1;
-                       }
-                       return -1;
-               }       
-               return 0;
-       }
 
-       virtual void OnSendList(userrec* user, chanrec* channel, char mode)
-       {
-               if (mode == 'g')
-               {
-                       SpamList* spamlist = (SpamList*)channel->GetExt("spam_list");
-                       if (spamlist)
-                       {
-                               for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
-                               {
-                                       WriteServ(user->fd,"941 %s %s %s",user->nick, channel->name,i->c_str());
+                                       if (hidemask)
+                                               user->WriteNumeric(ERR_CANNOTSENDTOCHAN, chan->name, "Cannot send to channel (your message contained a censored word)");
+                                       else
+                                               user->WriteNumeric(ERR_CANNOTSENDTOCHAN, chan->name, "Cannot send to channel (your message contained a censored word: " + i->mask + ")");
+                                       return MOD_RES_DENY;
                                }
                        }
-                       WriteServ(user->fd,"940 %s %s :End of channel spamfilter list",user->nick, channel->name);
                }
-       }
-       
-       virtual ~ModuleChanFilter()
-       {
-               delete Conf;
-       }
-       
-       virtual Version GetVersion()
-       {
-               return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
-       }
-       
-       virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque)
-       {
-               SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
-               string_list commands;
-               if (spamlist)
-               {
-                       for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
-                       {
-                               proto->ProtoSendMode(opaque,TYPE_CHANNEL,chan,"+g "+*i);
-                       }
-               }
-       }
 
-};
-
-
-class ModuleChanFilterFactory : public ModuleFactory
-{
- public:
-       ModuleChanFilterFactory()
-       {
+               return MOD_RES_PASSTHRU;
        }
-       
-       ~ModuleChanFilterFactory()
-       {
-       }
-       
-       virtual Module * CreateModule(Server* Me)
+
+       Version GetVersion() CXX11_OVERRIDE
        {
-               return new ModuleChanFilter(Me);
+               // We don't send any link data if the length is 35 for compatibility with the 2.0 branch.
+               std::string maxfilterlen;
+               if (cf.maxlen != 35)
+                       maxfilterlen.assign(ConvToStr(cf.maxlen));
+
+               return Version("Provides channel-specific censor lists (like mode +G but varies from channel to channel)", VF_VENDOR, maxfilterlen);
        }
-       
 };
 
-
-extern "C" void * init_module( void )
-{
-       return new ModuleChanFilterFactory;
-}
-
+MODULE_INIT(ModuleChanFilter)