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[user/henk/code/inspircd.git] / src / modules / m_censor.cpp
index e0b453c5c2b7b49c96eaad0e72c0416a62234933..a4c3c86c057b4fd54946c109daabda7413b7bd63 100644 (file)
-/*       +------------------------------------+
- *       | 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>
- *     
- * 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) 2004, 2008-2009 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2005, 2007 Robin Burchell <robin+git@viroteck.net>
  *
- * ---------------------------------------------------
+ * 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 "users.h"
-#include "channels.h"
-#include "modules.h"
+#define _CRT_SECURE_NO_DEPRECATE
+#define _SCL_SECURE_NO_DEPRECATE
+
 #include "inspircd.h"
+#include <iostream>
 
 typedef std::map<irc::string,irc::string> censor_t;
 
-/* $ModDesc: Provides user and channel +G mode */
-
-/** Thrown by m_censor
- */
-class CensorException : public ModuleException
-{
- public:
-       virtual const char* GetReason()
-       {
-               return "Could not find <censor file=\"\"> definition in your config file!";
-       }
-};
-
 /** Handles usermode +G
  */
-class CensorUser : public ModeHandler
+class CensorUser : public SimpleUserModeHandler
 {
  public:
-       CensorUser(InspIRCd* Instance) : ModeHandler(Instance, 'G', 0, 0, false, MODETYPE_USER, false) { }
-
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
-       {
-               /* Only opers can change other users modes */
-               if ((source != dest) && (!*source->oper))
-                       return MODEACTION_DENY;
-
-               if (adding)
-               {
-                       if (!dest->IsModeSet('G'))
-                       {
-                               dest->SetMode('G',true);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-               else
-               {
-                       if (dest->IsModeSet('G'))
-                       {
-                               dest->SetMode('G',false);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-
-               return MODEACTION_DENY;
-       }
+       CensorUser(Module* Creator) : SimpleUserModeHandler(Creator, "u_censor", 'G') { }
 };
 
 /** Handles channel mode +G
  */
-class CensorChannel : public ModeHandler
+class CensorChannel : public SimpleChannelModeHandler
 {
  public:
-       CensorChannel(InspIRCd* Instance) : ModeHandler(Instance, 'G', 0, 0, false, MODETYPE_CHANNEL, false) { }
-
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
-       {
-               if (adding)
-               {
-                       if (!channel->IsModeSet('G'))
-                       {
-                               channel->SetMode('G',false);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-               else
-               {
-                       if (channel->IsModeSet('G'))
-                       {
-                               channel->SetMode('G',false);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-
-               return MODEACTION_ALLOW;
-       }
+       CensorChannel(Module* Creator) : SimpleChannelModeHandler(Creator, "censor", 'G') { }
 };
 
 class ModuleCensor : public Module
 {
-
-       
        censor_t censors;
-       CensorUser *cu;
-       CensorChannel *cc;
+       CensorUser cu;
+       CensorChannel cc;
+
  public:
-       ModuleCensor(InspIRCd* Me)
-               : Module::Module(Me)
-       {
-               /*
-                * read the configuration file on startup.
-                * it is perfectly valid to set <censor file> to the value of the
-                * main config file, then append your <badword> tags to the bottom
-                * of the main config... but rather messy. That's why the capability
-                * of using a seperate config file is provided.
-                *
-                * XXX - Really, it'd be nice to scraip this kind of thing, and have something like
-                * an include directive to include additional configuration files. Might make our lives easier. --w00t
-                *
-                * XXX - These module pre-date the include directive which exists since beta 5 -- Brain
-                */
-               
-               OnRehash("");
-               cu = new CensorUser(ServerInstance);
-               cc = new CensorChannel(ServerInstance);
-               ServerInstance->AddMode(cu, 'G');
-               ServerInstance->AddMode(cc, 'G');
-       }
+       ModuleCensor() : cu(this), cc(this) { }
 
-       void Implements(char* List)
+       // format of a config entry is <badword text="shit" replace="poo">
+       ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
        {
-               List[I_OnRehash] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = 1;
-       }
+               if (!IS_LOCAL(user))
+                       return MOD_RES_PASSTHRU;
 
-       virtual ~ModuleCensor()
-       {
-               ServerInstance->Modes->DelMode(cu);
-               ServerInstance->Modes->DelMode(cc);
-               DELETE(cu);
-               DELETE(cc);
-       }
+               bool active = false;
 
-       virtual void ReplaceLine(irc::string &text, irc::string pattern, irc::string replace)
-       {
-               if ((pattern != "") && (text != ""))
+               if (target_type == TYPE_USER)
+                       active = ((User*)dest)->IsModeSet(cu);
+               else if (target_type == TYPE_CHANNEL)
                {
-                       while (text.find(pattern) != irc::string::npos)
-                       {
-                               int pos = text.find(pattern);
-                               text.erase(pos,pattern.length());
-                               text.insert(pos,replace);
-                       }
+                       Channel* c = (Channel*)dest;
+                       active = c->IsModeSet(cc);
+                       ModResult res = ServerInstance->OnCheckExemption(user,c,"censor");
+
+                       if (res == MOD_RES_ALLOW)
+                               return MOD_RES_PASSTHRU;
                }
-       }
 
-       // format of a config entry is <badword text="shit" replace="poo">
-       virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
-       {
-               bool active = false;
+               if (!active)
+                       return MOD_RES_PASSTHRU;
+
                irc::string text2 = text.c_str();
                for (censor_t::iterator index = censors.begin(); index != censors.end(); index++)
-               { 
+               {
                        if (text2.find(index->first) != irc::string::npos)
                        {
-                               if (target_type == TYPE_USER)
-                               {
-                                       userrec* t = (userrec*)dest;
-                                       active = t->IsModeSet('G');
-                               }
-                               else if (target_type == TYPE_CHANNEL)
-                               {
-                                       chanrec* t = (chanrec*)dest;
-                                       active = t->IsModeSet('G');
-                               }
-                               
-                               if (active)
+                               if (index->second.empty())
                                {
-                                       this->ReplaceLine(text2,index->first,index->second);
-                                       text = text2.c_str();
+                                       user->WriteNumeric(ERR_WORDFILTERED, "%s %s %s :Your message contained a censored word, and was blocked", user->nick.c_str(), ((Channel*)dest)->name.c_str(), index->first.c_str());
+                                       return MOD_RES_DENY;
                                }
+
+                               SearchAndReplace(text2, index->first, index->second);
                        }
                }
-               return 0;
-       }
-       
-       virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
-       {
-               return OnUserPreMessage(user,dest,target_type,text,status);
+               text = text2.c_str();
+               return MOD_RES_PASSTHRU;
        }
-       
-       virtual void OnRehash(const std::string &parameter)
+
+       void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
        {
                /*
                 * reload our config file on rehash - we must destroy and re-allocate the classes
                 * to call the constructor again and re-read our data.
                 */
-               ConfigReader* Conf = new ConfigReader(ServerInstance);
-               std::string Censorfile = Conf->ReadValue("censor","file",0);
-               // this automatically re-reads the configuration file into the class
-               ConfigReader* MyConf = new ConfigReader(ServerInstance, Censorfile);
-               if ((Censorfile == "") || (!MyConf->Verify()))
-               {
-                       CensorException e;
-                       throw(e);
-               }
                censors.clear();
-               for (int index = 0; index < MyConf->Enumerate("badword"); index++)
+
+               ConfigTagList badwords = ServerInstance->Config->ConfTags("badword");
+               for (ConfigIter i = badwords.first; i != badwords.second; ++i)
                {
-                       irc::string pattern = (MyConf->ReadValue("badword","text",index)).c_str();
-                       irc::string replace = (MyConf->ReadValue("badword","replace",index)).c_str();
-                       censors[pattern] = replace;
+                       ConfigTag* tag = i->second;
+                       std::string str = tag->getString("text");
+                       irc::string pattern(str.c_str());
+                       str = tag->getString("replace");
+                       censors[pattern] = irc::string(str.c_str());
                }
-               DELETE(Conf);
-               DELETE(MyConf);
        }
-       
-       virtual Version GetVersion()
-       {
-               // This is version 2 because version 1.x is the unreleased unrealircd module
-               return Version(1,0,0,0,VF_COMMON|VF_VENDOR,API_VERSION);
-       }
-       
-};
 
-// stuff down here is the module-factory stuff. For basic modules you can ignore this.
-
-class ModuleCensorFactory : public ModuleFactory
-{
- public:
-       ModuleCensorFactory()
-       {
-       }
-       
-       ~ModuleCensorFactory()
+       Version GetVersion() CXX11_OVERRIDE
        {
+               return Version("Provides user and channel +G mode",VF_VENDOR);
        }
-       
-       virtual Module * CreateModule(InspIRCd* Me)
-       {
-               return new ModuleCensor(Me);
-       }
-       
-};
 
+};
 
-extern "C" void * init_module( void )
-{
-       return new ModuleCensorFactory;
-}
+MODULE_INIT(ModuleCensor)