]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_filter.h
fix some unitialised vectors and tidy up a bit.
[user/henk/code/inspircd.git] / src / modules / m_filter.h
index ddf448e2eb98a40d32af09469cb2fcd627a8bb05..7af2204bbc8df18abc0b2b4d39016a54660e9257 100644 (file)
@@ -1 +1,461 @@
-/*       +------------------------------------+\r *       | Inspire Internet Relay Chat Daemon |\r *       +------------------------------------+\r *\r *  InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r *            the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "xline.h"\r\renum FilterFlags\r{\r    FLAG_NOOPERS = 1,\r      FLAG_PART = 2,\r FLAG_QUIT = 4,\r FLAG_PRIVMSG = 8,\r      FLAG_NOTICE = 16\r};\r\rclass FilterResult : public classbase\r{\r public:\r  std::string freeform;\r  std::string reason;\r    std::string action;\r    long gline_time;\r       std::string flags;\r\r    bool flag_no_opers;\r    bool flag_part_message;\r        bool flag_quit_message;\r        bool flag_privmsg;\r     bool flag_notice;\r\r     FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt, const std::string &fla) : freeform(free), reason(rea),\r                                                                   action(act), gline_time(gt), flags(fla)\r        {\r              this->FillFlags(flags);\r        }\r\r     int FillFlags(const std::string &fl)\r   {\r              flags = fl;\r            flag_no_opers = flag_part_message = flag_quit_message = flag_privmsg = flag_notice = false;\r            size_t x = 0;\r\r         for (std::string::const_iterator n = flags.begin(); n != flags.end(); ++n, ++x)\r                {\r                      switch (*n)\r                    {\r                              case 'o':\r                                      flag_no_opers = true;\r                          break;\r                         case 'P':\r                                      flag_part_message = true;\r                              break;\r                         case 'q':\r                                      flag_quit_message = true;\r                              break;\r                         case 'p':\r                                      flag_privmsg = true;\r                           break;\r                         case 'n':\r                                      flag_notice = true;\r                            break;\r                         case '*':\r                                      flag_no_opers = flag_part_message = flag_quit_message =\r                                                flag_privmsg = flag_notice = true;\r                             break;\r                         default:\r                                       return x;\r                              break;\r                 }\r              }\r              return 0;\r      }\r\r     FilterResult()\r {\r      }\r\r     virtual ~FilterResult()\r        {\r      }\r};\r\rclass cmd_filter;\r\rclass FilterBase : public Module\r{\r    cmd_filter* filtcommand;\r       int flags;\r public:\r    FilterBase(InspIRCd* Me, const std::string &source);\r   virtual ~FilterBase();\r virtual void Implements(char* List);\r   virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);\r   virtual FilterResult* FilterMatch(userrec* user, const std::string &text, int flags) = 0;\r      virtual bool DeleteFilter(const std::string &freeform) = 0;\r    virtual void SyncFilters(Module* proto, void* opaque) = 0;\r     virtual void SendFilter(Module* proto, void* opaque, FilterResult* iter);\r      virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flags) = 0;\r  virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);\r    virtual void OnRehash(userrec* user, const std::string &parameter);\r    virtual Version GetVersion();\r  std::string EncodeFilter(FilterResult* filter);\r        FilterResult DecodeFilter(const std::string &data);\r    virtual void OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable = false);\r       virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata);\r  virtual int OnStats(char symbol, userrec* user, string_list &results) = 0;\r     virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line);\r      bool AppliesToMe(userrec* user, FilterResult* filter, int flags);\r};\r\rclass cmd_filter : public command_t\r{\r    FilterBase* Base;\r public:\r     cmd_filter(FilterBase* f, InspIRCd* Me, const std::string &source) : command_t(Me, "FILTER", 'o', 1), Base(f)\r  {\r              this->source = source;\r         this->syntax = "<filter-definition> <type> <flags> [<gline-duration>] :<reason>";\r      }\r\r     CmdResult Handle(const char** parameters, int pcnt, userrec *user)\r     {\r              if (pcnt == 1)\r         {\r                      /* Deleting a filter */\r                        if (Base->DeleteFilter(parameters[0]))\r                 {\r                              user->WriteServ("NOTICE %s :*** Deleted filter '%s'", user->nick, parameters[0]);\r                              return CMD_SUCCESS;\r                    }\r                      else\r                   {\r                              user->WriteServ("NOTICE %s :*** Filter '%s' not found on list.", user->nick, parameters[0]);\r                           return CMD_FAILURE;\r                    }\r              }\r              else\r           {\r                      /* Adding a filter */\r                  if (pcnt >= 4)\r                 {\r                              std::string freeform = parameters[0];\r                          std::string type = parameters[1];\r                              std::string flags = parameters[2];\r                             std::string reason;\r                            long duration = 0;\r\r\r                           if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill") && (type != "silent"))\r                              {\r                                      user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', 'silent' and 'kill'.", user->nick, freeform.c_str());\r                                  return CMD_FAILURE;\r                            }\r\r                             if (type == "gline")\r                           {\r                                      if (pcnt >= 5)\r                                 {\r                                              duration = ServerInstance->Duration(parameters[3]);\r                                            reason = parameters[4];\r                                        }\r                                      else\r                                   {\r                                              this->TooFewParams(user, " When setting a gline type filter, a gline duration must be specified as the third parameter.");\r                                             return CMD_FAILURE;\r                                    }\r                              }\r                              else\r                           {\r                                      reason = parameters[3];\r                                }\r                              std::pair<bool, std::string> result = Base->AddFilter(freeform, type, reason, duration, flags);\r                                if (result.first)\r                              {\r                                      user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, flags '%s', reason: '%s'", user->nick, freeform.c_str(),\r                                                     type.c_str(), (duration ? " duration: " : ""), (duration ? parameters[3] : ""),\r                                                        flags.c_str(), reason.c_str());\r                                        return CMD_SUCCESS;\r                            }\r                              else\r                           {\r                                      user->WriteServ("NOTICE %s :*** Filter '%s' could not be added: %s", user->nick, freeform.c_str(), result.second.c_str());\r                                     return CMD_FAILURE;\r                            }\r                      }\r                      else\r                   {\r                              this->TooFewParams(user, ".");\r                         return CMD_FAILURE;\r                    }\r\r             }\r      }\r\r     void TooFewParams(userrec* user, const std::string &extra_text)\r        {\r              user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick, extra_text.c_str());\r     }\r};\r\rbool FilterBase::AppliesToMe(userrec* user, FilterResult* filter, int flags)\r{\r   if ((flags & FLAG_NOOPERS) && (filter->flag_no_opers) && IS_OPER(user))\r                return false;\r  if ((flags & FLAG_PRIVMSG) && (!filter->flag_privmsg))\r         return false;\r  if ((flags & FLAG_NOTICE) && (!filter->flag_notice))\r           return false;\r  if ((flags & FLAG_QUIT)   && (!filter->flag_quit_message))\r             return false;\r  if ((flags & FLAG_PART)   && (!filter->flag_part_message))\r             return false;\r  return true;\r}\r\rFilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module(Me)\r{\r filtcommand = new cmd_filter(this, Me, source);\r        ServerInstance->AddCommand(filtcommand);\r}\r\rFilterBase::~FilterBase()\r{\r}\r\rvoid FilterBase::Implements(char* List)\r{\r   List[I_OnPreCommand] = List[I_OnStats] = List[I_OnSyncOtherMetaData] = List[I_OnDecodeMetaData] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;\r}\r\rint FilterBase::OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)\r{\r      flags = FLAG_PRIVMSG;\r  return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);\r}\r\rint FilterBase::OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)\r{\r     if (!flags)\r            flags = FLAG_NOTICE;\r\r  /* Leave ulines alone */\r       if ((ServerInstance->ULine(user->server)) || (!IS_LOCAL(user)))\r                return 0;\r\r     FilterResult* f = this->FilterMatch(user, text, flags);\r        if (f)\r {\r              std::string target = "";\r               if (target_type == TYPE_USER)\r          {\r                      userrec* t = (userrec*)dest;\r                   target = std::string(t->nick);\r         }\r              else if (target_type == TYPE_CHANNEL)\r          {\r                      chanrec* t = (chanrec*)dest;\r                   target = std::string(t->name);\r         }\r              if (f->action == "block")\r              {       \r                       ServerInstance->WriteOpers(std::string("FILTER: ")+user->nick+" had their message filtered, target was "+target+": "+f->reason);\r                       user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered and opers notified: "+f->reason);\r          }\r              if (f->action == "silent")\r             {\r                      user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered: "+f->reason);\r             }\r              if (f->action == "kill")\r               {\r                      userrec::QuitUser(ServerInstance,user,"Filtered: "+f->reason);\r         }\r              if (f->action == "gline")\r              {\r                      if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), user->MakeHostIP()))\r                       {\r                              ServerInstance->XLines->apply_lines(APPLY_GLINES);\r                             FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP()));\r                      }\r              }\r\r             ServerInstance->Log(DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their message filtered, target was ")+target+": "+f->reason+" Action: "+f->action);\r           return 1;\r      }\r      return 0;\r}\r\rint FilterBase::OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)\r{\r    flags = 0;\r     if ((validated == 1) && (IS_LOCAL(user)))\r      {\r              std::string checkline;\r         int replacepoint = 0;\r          bool parting = false;\r  \r               if (command == "QUIT")\r         {\r                      /* QUIT with no reason: nothing to do */\r                       if (pcnt < 1)\r                          return 0;\r\r                     checkline = parameters[0];\r                     replacepoint = 0;\r                      parting = false;\r                       flags = FLAG_QUIT;\r             }\r              else if (command == "PART")\r            {\r                      /* PART with no reason: nothing to do */\r                       if (pcnt < 2)\r                          return 0;\r\r                     checkline = parameters[1];\r                     replacepoint = 1;\r                      parting = true;\r                        flags = FLAG_PART;\r             }\r              else\r                   /* We're only messing with PART and QUIT */\r                    return 0;\r\r             FilterResult* f = NULL;\r                \r               if (flags)\r                     f = this->FilterMatch(user, checkline, flags);\r\r                if (!f)\r                        /* PART or QUIT reason doesnt match a filter */\r                        return 0;\r\r             /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */\r               command_t* c = ServerInstance->Parser->GetHandler(command);\r            if (c)\r         {\r                      const char* params[127];\r                       for (int item = 0; item < pcnt; item++)\r                                params[item] = parameters[item];\r                       params[replacepoint] = "Reason filtered";\r\r                     /* We're blocking, OR theyre quitting and its a KILL action\r                     * (we cant kill someone whos already quitting, so filter them anyway)\r                  */\r                    if ((f->action == "block") || (((!parting) && (f->action == "kill"))) || (f->action == "silent"))\r                      {\r                              c->Handle(params, pcnt, user);\r                         return 1;\r                      }\r                      else\r                   {\r                              /* Are they parting, if so, kill is applicable */\r                              if ((parting) && (f->action == "kill"))\r                                {\r                                      user->SetWriteError("Filtered: "+f->reason);\r                                   /* This WriteServ causes the write error to be applied.\r                                         * Its not safe to kill here with QuitUser in a PreCommand handler,\r                                     * so we do it this way, which is safe just about anywhere.\r                                     */\r                                    user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick, f->reason.c_str());\r                           }\r                              if (f->action == "gline")\r                              {\r                                      /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */\r                                        std::string wild = "*@";\r                                       wild.append(user->GetIPString());\r\r                                     if (ServerInstance->XLines->add_gline(f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), wild.c_str()))\r                                     {\r                                              ServerInstance->XLines->apply_lines(APPLY_GLINES);\r                                             FOREACH_MOD(I_OnAddGLine,OnAddGLine(f->gline_time, NULL, f->reason, user->MakeHostIP()));\r                                      }\r                              }\r                              return 1;\r                      }\r              }\r              return 0;\r      }\r      return 0;\r}\r\rvoid FilterBase::OnRehash(userrec* user, const std::string &parameter)\r{\r}\r        \rVersion FilterBase::GetVersion()\r{\r    return Version(1,1,0,2,VF_VENDOR|VF_COMMON,API_VERSION);\r}\r\r\rstd::string FilterBase::EncodeFilter(FilterResult* filter)\r{\r      std::ostringstream stream;\r     std::string x = filter->freeform;\r\r     /* Hax to allow spaces in the freeform without changing the design of the irc protocol */\r      for (std::string::iterator n = x.begin(); n != x.end(); n++)\r           if (*n == ' ')\r                 *n = '\7';\r\r    stream << x << " " << filter->action << " " << (filter->flags.empty() ? "-" : filter->flags) << " " << filter->gline_time << " :" << filter->reason;\r   return stream.str();\r}\r\rFilterResult FilterBase::DecodeFilter(const std::string &data)\r{\r       FilterResult res;\r      irc::tokenstream tokens(data);\r tokens.GetToken(res.freeform);\r tokens.GetToken(res.action);\r   tokens.GetToken(res.flags);\r    if (res.flags == "-")\r          res.flags = "";\r        res.FillFlags(res.flags);\r      tokens.GetToken(res.gline_time);\r       tokens.GetToken(res.reason);\r\r  /* Hax to allow spaces in the freeform without changing the design of the irc protocol */\r      for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++)\r             if (*n == '\7')\r                        *n = ' ';\r\r     return res;\r}\r\rvoid FilterBase::OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable)\r{\r   this->SyncFilters(proto, opaque);\r}\r\rvoid FilterBase::SendFilter(Module* proto, void* opaque, FilterResult* iter)\r{\r    proto->ProtoSendMetaData(opaque, TYPE_OTHER, NULL, "filter", EncodeFilter(iter));\r}\r\rvoid FilterBase::OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)\r{\r        if ((target_type == TYPE_OTHER) && (extname == "filter"))\r      {\r              FilterResult data = DecodeFilter(extdata);\r             this->AddFilter(data.freeform, data.action, data.reason, data.gline_time, data.flags);\r }\r}\r\r
\ No newline at end of file
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2008 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.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "xline.h"
+
+enum FilterFlags
+{
+       FLAG_PART = 2,
+       FLAG_QUIT = 4,
+       FLAG_PRIVMSG = 8,
+       FLAG_NOTICE = 16
+};
+
+class FilterResult : public classbase
+{
+ public:
+       std::string freeform;
+       std::string reason;
+       std::string action;
+       long gline_time;
+       std::string flags;
+
+       bool flag_no_opers;
+       bool flag_part_message;
+       bool flag_quit_message;
+       bool flag_privmsg;
+       bool flag_notice;
+
+       FilterResult(const std::string free, const std::string &rea, const std::string &act, long gt, const std::string &fla) :
+                       freeform(free), reason(rea), action(act), gline_time(gt), flags(fla)
+       {
+               this->FillFlags(fla);
+       }
+
+       int FillFlags(const std::string &fl)
+       {
+               flags = fl;
+               flag_no_opers = flag_part_message = flag_quit_message = flag_privmsg = flag_notice = false;
+               size_t x = 0;
+
+               for (std::string::const_iterator n = flags.begin(); n != flags.end(); ++n, ++x)
+               {
+                       switch (*n)
+                       {
+                               case 'o':
+                                       flag_no_opers = true;
+                               break;
+                               case 'P':
+                                       flag_part_message = true;
+                               break;
+                               case 'q':
+                                       flag_quit_message = true;
+                               break;
+                               case 'p':
+                                       flag_privmsg = true;
+                               break;
+                               case 'n':
+                                       flag_notice = true;
+                               break;
+                               case '*':
+                                       flag_no_opers = flag_part_message = flag_quit_message =
+                                               flag_privmsg = flag_notice = true;
+                               break;
+                               default:
+                                       return x;
+                               break;
+                       }
+               }
+               return 0;
+       }
+
+       FilterResult()
+       {
+       }
+
+       virtual ~FilterResult()
+       {
+       }
+};
+
+class CommandFilter;
+
+class FilterBase : public Module
+{
+       CommandFilter* filtcommand;
+       int flags;
+protected:
+       std::vector<std::string> exemptfromfilter; // List of channel names excluded from filtering.
+ public:
+       FilterBase(InspIRCd* Me, const std::string &source);
+       virtual ~FilterBase();
+       virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);
+       virtual FilterResult* FilterMatch(User* user, const std::string &text, int flags) = 0;
+       virtual bool DeleteFilter(const std::string &freeform) = 0;
+       virtual void SyncFilters(Module* proto, void* opaque) = 0;
+       virtual void SendFilter(Module* proto, void* opaque, FilterResult* iter);
+       virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flags) = 0;
+       virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list);
+       virtual void OnRehash(User* user, const std::string &parameter);
+       virtual Version GetVersion();
+       std::string EncodeFilter(FilterResult* filter);
+       FilterResult DecodeFilter(const std::string &data);
+       virtual void OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable = false);
+       virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata);
+       virtual int OnStats(char symbol, User* user, string_list &results) = 0;
+       virtual int OnPreCommand(const std::string &command, const std::vector<std::string> &parameters, User *user, bool validated, const std::string &original_line);
+       bool AppliesToMe(User* user, FilterResult* filter, int flags);
+};
+
+class CommandFilter : public Command
+{
+       FilterBase* Base;
+ public:
+       CommandFilter(FilterBase* f, InspIRCd* Me, const std::string &ssource) : Command(Me, "FILTER", "o", 1), Base(f)
+       {
+               this->source = ssource;
+               this->syntax = "<filter-definition> <type> <flags> [<gline-duration>] :<reason>";
+       }
+
+       CmdResult Handle(const std::vector<std::string> &parameters, User *user)
+       {
+               if (parameters.size() == 1)
+               {
+                       /* Deleting a filter */
+                       if (Base->DeleteFilter(parameters[0]))
+                       {
+                               user->WriteServ("NOTICE %s :*** Deleted filter '%s'", user->nick, parameters[0].c_str());
+                               return CMD_SUCCESS;
+                       }
+                       else
+                       {
+                               user->WriteServ("NOTICE %s :*** Filter '%s' not found on list.", user->nick, parameters[0].c_str());
+                               return CMD_FAILURE;
+                       }
+               }
+               else
+               {
+                       /* Adding a filter */
+                       if (parameters.size() >= 4)
+                       {
+                               std::string freeform = parameters[0];
+                               std::string type = parameters[1];
+                               std::string flags = parameters[2];
+                               std::string reason;
+                               long duration = 0;
+
+
+                               if ((type != "gline") && (type != "none") && (type != "block") && (type != "kill") && (type != "silent"))
+                               {
+                                       user->WriteServ("NOTICE %s :*** Invalid filter type '%s'. Supported types are 'gline', 'none', 'block', 'silent' and 'kill'.", user->nick, freeform.c_str());
+                                       return CMD_FAILURE;
+                               }
+
+                               if (type == "gline")
+                               {
+                                       if (parameters.size() >= 5)
+                                       {
+                                               duration = ServerInstance->Duration(parameters[3]);
+                                               reason = parameters[4];
+                                       }
+                                       else
+                                       {
+                                               this->TooFewParams(user, " When setting a gline type filter, a gline duration must be specified as the third parameter.");
+                                               return CMD_FAILURE;
+                                       }
+                               }
+                               else
+                               {
+                                       reason = parameters[3];
+                               }
+                               std::pair<bool, std::string> result = Base->AddFilter(freeform, type, reason, duration, flags);
+                               if (result.first)
+                               {
+                                       user->WriteServ("NOTICE %s :*** Added filter '%s', type '%s'%s%s, flags '%s', reason: '%s'", user->nick, freeform.c_str(),
+                                                       type.c_str(), (duration ? " duration: " : ""), (duration ? parameters[3].c_str() : ""),
+                                                       flags.c_str(), reason.c_str());
+                                       return CMD_SUCCESS;
+                               }
+                               else
+                               {
+                                       user->WriteServ("NOTICE %s :*** Filter '%s' could not be added: %s", user->nick, freeform.c_str(), result.second.c_str());
+                                       return CMD_FAILURE;
+                               }
+                       }
+                       else
+                       {
+                               this->TooFewParams(user, ".");
+                               return CMD_FAILURE;
+                       }
+
+               }
+       }
+
+       void TooFewParams(User* user, const std::string &extra_text)
+       {
+               user->WriteServ("NOTICE %s :*** Not enough parameters%s", user->nick, extra_text.c_str());
+       }
+};
+
+bool FilterBase::AppliesToMe(User* user, FilterResult* filter, int iflags)
+{
+       if ((filter->flag_no_opers) && IS_OPER(user))
+               return false;
+       if ((iflags & FLAG_PRIVMSG) && (!filter->flag_privmsg))
+               return false;
+       if ((iflags & FLAG_NOTICE) && (!filter->flag_notice))
+               return false;
+       if ((iflags & FLAG_QUIT)   && (!filter->flag_quit_message))
+               return false;
+       if ((iflags & FLAG_PART)   && (!filter->flag_part_message))
+               return false;
+       return true;
+}
+
+FilterBase::FilterBase(InspIRCd* Me, const std::string &source) : Module(Me)
+{
+       filtcommand = new CommandFilter(this, Me, source);
+       ServerInstance->AddCommand(filtcommand);
+       Implementation eventlist[] = { I_OnPreCommand, I_OnStats, I_OnSyncOtherMetaData, I_OnDecodeMetaData, I_OnUserPreMessage, I_OnUserPreNotice, I_OnRehash };
+       ServerInstance->Modules->Attach(eventlist, this, 7);
+}
+
+FilterBase::~FilterBase()
+{
+}
+
+int FilterBase::OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
+{
+       flags = FLAG_PRIVMSG;
+       return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
+}
+
+int FilterBase::OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
+{
+       if (!flags)
+               flags = FLAG_NOTICE;
+
+       /* Leave ulines alone */
+       if ((ServerInstance->ULine(user->server)) || (!IS_LOCAL(user)))
+               return 0;
+
+       FilterResult* f = this->FilterMatch(user, text, flags);
+       if (f)
+       {
+               std::string target = "";
+               if (target_type == TYPE_USER)
+               {
+                       User* t = (User*)dest;
+                       target = std::string(t->nick);
+               }
+               else if (target_type == TYPE_CHANNEL)
+               {
+                       Channel* t = (Channel*)dest;
+                       target = std::string(t->name);
+                       std::vector<std::string>::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), target);
+                       if (i != exemptfromfilter.end()) return 0;
+               }
+               if (f->action == "block")
+               {       
+                       ServerInstance->SNO->WriteToSnoMask('A', std::string("FILTER: ")+user->nick+" had their message filtered, target was "+target+": "+f->reason);
+                       user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered and opers notified: "+f->reason);
+               }
+               if (f->action == "silent")
+               {
+                       user->WriteServ("NOTICE "+std::string(user->nick)+" :Your message has been filtered: "+f->reason);
+               }
+               if (f->action == "kill")
+               {
+                       ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason);
+               }
+               if (f->action == "gline")
+               {
+                       GLine* gl = new GLine(ServerInstance, ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), "*", user->GetIPString());
+                       if (ServerInstance->XLines->AddLine(gl,NULL))
+                       {
+                               ServerInstance->XLines->ApplyLines();
+                       }
+                       else
+                               delete gl;
+               }
+
+               ServerInstance->Logs->Log("FILTER",DEFAULT,"FILTER: "+std::string(user->nick)+std::string(" had their message filtered, target was ")+target+": "+f->reason+" Action: "+f->action);
+               return 1;
+       }
+       return 0;
+}
+
+int FilterBase::OnPreCommand(const std::string &command, const std::vector<std::string> &parameters, User *user, bool validated, const std::string &original_line)
+{
+       flags = 0;
+       if ((validated == 1) && (IS_LOCAL(user)))
+       {
+               std::string checkline;
+               int replacepoint = 0;
+               bool parting = false;
+       
+               if (command == "QUIT")
+               {
+                       /* QUIT with no reason: nothing to do */
+                       if (parameters.size() < 1)
+                               return 0;
+
+                       checkline = parameters[0];
+                       replacepoint = 0;
+                       parting = false;
+                       flags = FLAG_QUIT;
+               }
+               else if (command == "PART")
+               {
+                       /* PART with no reason: nothing to do */
+                       if (parameters.size() < 2)
+                               return 0;
+
+                       std::vector<std::string>::iterator i = find(exemptfromfilter.begin(), exemptfromfilter.end(), parameters[0]);
+                       if (i != exemptfromfilter.end()) return 0;
+                       checkline = parameters[1];
+                       replacepoint = 1;
+                       parting = true;
+                       flags = FLAG_PART;
+               }
+               else
+                       /* We're only messing with PART and QUIT */
+                       return 0;
+
+               FilterResult* f = NULL;
+               
+               if (flags)
+                       f = this->FilterMatch(user, checkline, flags);
+
+               if (!f)
+                       /* PART or QUIT reason doesnt match a filter */
+                       return 0;
+
+               /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */
+               Command* c = ServerInstance->Parser->GetHandler(command);
+               if (c)
+               {
+                       std::vector<std::string> params;
+                       for (int item = 0; item < (int)parameters.size(); item++)
+                               params.push_back(parameters[item]);
+                       params[replacepoint] = "Reason filtered";
+
+                       /* We're blocking, OR theyre quitting and its a KILL action
+                        * (we cant kill someone whos already quitting, so filter them anyway)
+                        */
+                       if ((f->action == "block") || (((!parting) && (f->action == "kill"))) || (f->action == "silent"))
+                       {
+                               c->Handle(params, user);
+                               return 1;
+                       }
+                       else
+                       {
+                               /* Are they parting, if so, kill is applicable */
+                               if ((parting) && (f->action == "kill"))
+                               {
+                                       user->WriteServ("NOTICE %s :*** Your PART message was filtered: %s", user->nick, f->reason.c_str());
+                                       ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason);
+                               }
+                               if (f->action == "gline")
+                               {
+                                       /* Note: We gline *@IP so that if their host doesnt resolve the gline still applies. */
+                                       GLine* gl = new GLine(ServerInstance, ServerInstance->Time(), f->gline_time, ServerInstance->Config->ServerName, f->reason.c_str(), "*", user->GetIPString());
+                                       if (ServerInstance->XLines->AddLine(gl,NULL))
+                                       {
+                                               ServerInstance->XLines->ApplyLines();
+                                       }
+                                       else
+                                               delete gl;
+                               }
+                               return 1;
+                       }
+               }
+               return 0;
+       }
+       return 0;
+}
+
+void FilterBase::OnRehash(User* user, const std::string &parameter)
+{
+       ConfigReader* MyConf = new ConfigReader(ServerInstance);
+       std::vector<std::string>().swap(exemptfromfilter);
+       for (int index = 0; index < MyConf->Enumerate("exemptfromfilter"); ++index)
+       {
+               std::string chan = MyConf->ReadValue("exemptfromfilter", "channel", index);
+               if (!chan.empty()) {
+                       exemptfromfilter.push_back(chan);
+               }
+       }
+       delete MyConf;
+}
+
+Version FilterBase::GetVersion()
+{
+       return Version(1,1,0,2,VF_VENDOR|VF_COMMON,API_VERSION);
+}
+
+
+std::string FilterBase::EncodeFilter(FilterResult* filter)
+{
+       std::ostringstream stream;
+       std::string x = filter->freeform;
+
+       /* Hax to allow spaces in the freeform without changing the design of the irc protocol */
+       for (std::string::iterator n = x.begin(); n != x.end(); n++)
+               if (*n == ' ')
+                       *n = '\7';
+
+       stream << x << " " << filter->action << " " << (filter->flags.empty() ? "-" : filter->flags) << " " << filter->gline_time << " :" << filter->reason;
+       return stream.str();
+}
+
+FilterResult FilterBase::DecodeFilter(const std::string &data)
+{
+       FilterResult res;
+       irc::tokenstream tokens(data);
+       tokens.GetToken(res.freeform);
+       tokens.GetToken(res.action);
+       tokens.GetToken(res.flags);
+       if (res.flags == "-")
+               res.flags = "";
+       res.FillFlags(res.flags);
+       tokens.GetToken(res.gline_time);
+       tokens.GetToken(res.reason);
+
+       /* Hax to allow spaces in the freeform without changing the design of the irc protocol */
+       for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++)
+               if (*n == '\7')
+                       *n = ' ';
+
+       return res;
+}
+
+void FilterBase::OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable)
+{
+       this->SyncFilters(proto, opaque);
+}
+
+void FilterBase::SendFilter(Module* proto, void* opaque, FilterResult* iter)
+{
+       proto->ProtoSendMetaData(opaque, TYPE_OTHER, NULL, "filter", EncodeFilter(iter));
+}
+
+void FilterBase::OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
+{
+       if ((target_type == TYPE_OTHER) && (extname == "filter"))
+       {
+               FilterResult data = DecodeFilter(extdata);
+               this->AddFilter(data.freeform, data.action, data.reason, data.gline_time, data.flags);
+       }
+}
+