src/modules/m_censor.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 #include <stdio.h>
  18 #include <string>
  19 #include "users.h"
  20 #include "channels.h"
  21 #include "modules.h"
  22 #include "helperfuncs.h"
  23
  24 /* $ModDesc: Provides user and channel +G mode */
  25
  26 class ModuleCensor : public Module
  27 {
  28  Server *Srv;
  29  ConfigReader *Conf, *MyConf;
  30
  31  public:
  32         ModuleCensor()
  33         {
  34                 // read the configuration file on startup.
  35                 // it is perfectly valid to set <censor file> to the value of the
  36                 // main config file, then append your <badword> tags to the bottom
  37                 // of the main config... but rather messy. That's why the capability
  38                 // of using a seperate config file is provided.
  39                 Srv = new Server;
  40                 Conf = new ConfigReader;
  41                 std::string Censorfile = Conf->ReadValue("censor","file",0);
  42                 MyConf = new ConfigReader(Censorfile);
  43                 if ((Censorfile == "") || (!MyConf->Verify()))
  44                 {
  45                         printf("Error, could not find <censor file=\"\"> definition in your config file!");
  46                         log(DEFAULT,"Error, could not find <censor file=\"\"> definition in your config file!");
  47                         return;
  48                 }
  49                 Srv->Log(DEFAULT,std::string("m_censor: read configuration from ")+Censorfile);
  50                 Srv->AddExtendedMode('G',MT_CHANNEL,false,0,0);
  51                 Srv->AddExtendedMode('G',MT_CLIENT,false,0,0);
  52         }
  53
  54         virtual void On005Numeric(std::string &output)
  55         {
  56                 std::stringstream line(output);
  57                 std::string temp1, temp2;
  58                 while (!line.eof())
  59                 {
  60                         line >> temp1;
  61                         if (temp1.substr(0,10) == "CHANMODES=")
  62                         {
  63                                 // append the chanmode to the end
  64                                 temp1 = temp1.substr(10,temp1.length());
  65                                 temp1 = "CHANMODES=" + temp1 + "G";
  66                         }
  67                         temp2 = temp2 + temp1 + " ";
  68                 }
  69                 if (temp2.length())
  70                         output = temp2.substr(0,temp2.length()-1);
  71         }
  72
  73
  74         virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
  75         {
  76                 // check if this is our mode character...
  77                 if (modechar == 'G')
  78                 {
  79                         return 1;
  80                 }
  81                 else
  82                 {
  83                         return 0;
  84                 }
  85         }
  86
  87         virtual ~ModuleCensor()
  88         {
  89                 delete Srv;
  90                 delete MyConf;
  91                 delete Conf;
  92         }
  93
  94         virtual void ReplaceLine(std::string &text,std::string pattern, std::string replace)
  95         {
  96                 if ((pattern != "") && (text != ""))
  97                 {
  98                         while (text.find(pattern) != std::string::npos)
  99                         {
 100                                 int pos = text.find(pattern);
 101                                 text.erase(pos,pattern.length());
 102                                 text.insert(pos,replace);
 103                         }
 104                 }
 105         }
 106
 107         // format of a config entry is <badword text="shit" replace="poo">
 108
 109         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
 110         {
 111                 bool active = false;
 112                 for (int index = 0; index < MyConf->Enumerate("badword"); index++)
 113                 {
 114                         std::string pattern = MyConf->ReadValue("badword","text",index);
 115                         if (text.find(pattern) != std::string::npos)
 116                         {
 117                                 std::string replace = MyConf->ReadValue("badword","replace",index);
 118
 119                                 if (target_type == TYPE_USER)
 120                                 {
 121                                         userrec* t = (userrec*)dest;
 122                                         active = (strchr(t->modes,'G') > 0);
 123                                 }
 124                                 else if (target_type == TYPE_CHANNEL)
 125                                 {
 126                                         chanrec* t = (chanrec*)dest;
 127                                         active = (t->IsCustomModeSet('G'));
 128                                 }
 129
 130                                 if (active)
 131                                 {
 132                                         this->ReplaceLine(text,pattern,replace);
 133                                 }
 134                         }
 135                 }
 136                 return 0;
 137         }
 138
 139         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
 140         {
 141                 bool active = false;
 142                 for (int index = 0; index < MyConf->Enumerate("badword"); index++)
 143                 {
 144                         std::string pattern = MyConf->ReadValue("badword","text",index);
 145                         if (text.find(pattern) != std::string::npos)
 146                         {
 147                                 std::string replace = MyConf->ReadValue("badword","replace",index);
 148
 149                                 if (target_type == TYPE_USER)
 150                                 {
 151                                         userrec* t = (userrec*)dest;
 152                                         active = (strchr(t->modes,'G') > 0);
 153                                 }
 154                                 else if (target_type == TYPE_CHANNEL)
 155                                 {
 156                                         chanrec* t = (chanrec*)dest;
 157                                         active = (t->IsCustomModeSet('G'));
 158                                 }
 159
 160                                 if (active)
 161                                 {
 162                                         this->ReplaceLine(text,pattern,replace);
 163                                 }
 164                         }
 165                 }
 166                 return 0;
 167         }
 168
 169         virtual void OnRehash()
 170         {
 171                 // reload our config file on rehash - we must destroy and re-allocate the classes
 172                 // to call the constructor again and re-read our data.
 173                 delete Conf;
 174                 delete MyConf;
 175                 Conf = new ConfigReader;
 176                 std::string Censorfile = Conf->ReadValue("censor","file",0);
 177                 // this automatically re-reads the configuration file into the class
 178                 MyConf = new ConfigReader(Censorfile);
 179                 if ((Censorfile == "") || (!MyConf->Verify()))
 180                 {
 181                         // bail if the user forgot to create a config file
 182                         printf("Error, could not find <censor file=\"\"> definition in your config file!");
 183                         log(DEFAULT,"Error, could not find <censor file=\"\"> definition in your config file!");
 184                 }
 185                 Srv->Log(DEFAULT,std::string("m_censor: read configuration from ")+Censorfile);
 186         }
 187
 188         virtual Version GetVersion()
 189         {
 190                 // This is version 2 because version 1.x is the unreleased unrealircd module
 191                 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
 192         }
 193
 194 };
 195
 196 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 197
 198 class ModuleCensorFactory : public ModuleFactory
 199 {
 200  public:
 201         ModuleCensorFactory()
 202         {
 203         }
 204
 205         ~ModuleCensorFactory()
 206         {
 207         }
 208
 209         virtual Module * CreateModule()
 210         {
 211                 return new ModuleCensor;
 212         }
 213
 214 };
 215
 216
 217 extern "C" void * init_module( void )
 218 {
 219         return new ModuleCensorFactory;
 220 }
 221