]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_filter.cpp
- Remove duplicate call to MatchText in filter.. it seems to work ok for me, fingers...
[user/henk/code/inspircd.git] / src / modules / m_filter.cpp
index d43ad7373b05bfe3edd4057ce9fb915866eb8109..36073db3b8036c3ebb71951bf567a1838edaaafa 100644 (file)
  *       | Inspire 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.
+ *  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;
-
-// Message and notice filtering using glob patterns
-// a module based on the original work done by Craig Edwards in 2003
-// for the chatspike network.
-
-#include <stdio.h>
-#include <string>
+#include "inspircd.h"
 #include "users.h"
 #include "channels.h"
 #include "modules.h"
-#include "helperfuncs.h"
+#include "m_filter.h"
+
+/* $ModDesc: An advanced spam filtering module */
+/* $ModDep: m_filter.h */
 
-/* $ModDesc: An enhanced version of the unreal m_filter.so used by chatspike.net */
+typedef std::map<std::string,FilterResult*> filter_t;
 
-class ModuleFilter : public Module
+class ModuleFilter : public FilterBase
 {
- Server *Srv;
- ConfigReader *Conf, *MyConf;
  
+ filter_t filters;
+
  public:
-       ModuleFilter(Server* Me)
-               : Module::Module(Me)
+       ModuleFilter(InspIRCd* Me)
+       : FilterBase(Me, "m_filter.so")
        {
-               // read the configuration file on startup.
-               // it is perfectly valid to set <filter file> to the value of the
-               // main config file, then append your <keyword> tags to the bottom
-               // of the main config... but rather messy. That's why the capability
-               // of using a seperate config file is provided.
-               Srv = Me;
-               Conf = new ConfigReader;
-               std::string filterfile = Conf->ReadValue("filter","file",0);
-               MyConf = new ConfigReader(filterfile);
-               if ((filterfile == "") || (!MyConf->Verify()))
-               {
-                       printf("Error, could not find <filter file=\"\"> definition in your config file!\n");
-                       log(DEFAULT,"Error, could not find <filter file=\"\"> definition in your config file!");
-                       return;
-               }
-               Srv->Log(DEFAULT,std::string("m_filter: read configuration from ")+filterfile);
+               OnRehash(NULL,"");
        }
        
        virtual ~ModuleFilter()
        {
-               delete MyConf;
-               delete Conf;
        }
-       
-       // format of a config entry is <keyword pattern="*glob*" reason="Some reason here" action="kill/block">
-       
-       virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
+
+       virtual FilterResult* FilterMatch(const std::string &text)
        {
-               std::string text2 = text+" ";
-               for (int index = 0; index < MyConf->Enumerate("keyword"); index++)
+               for (filter_t::iterator index = filters.begin(); index != filters.end(); index++)
                {
-                       std::string pattern = MyConf->ReadValue("keyword","pattern",index);
-                       if ((Srv->MatchText(text2,pattern)) || (Srv->MatchText(text,pattern)))
+                       if (ServerInstance->MatchText(text,index->first))
                        {
-                               std::string target = "";
-                               std::string reason = MyConf->ReadValue("keyword","reason",index);
-                               std::string do_action = MyConf->ReadValue("keyword","action",index);
-
-                               if (do_action == "")
-                                       do_action = "none";
-
-                               if (target_type == TYPE_USER)
-                               {
-                                       userrec* t = (userrec*)dest;
-                                       target = std::string(t->nick);
-                               }
-                               else if (target_type == TYPE_CHANNEL)
+                               FilterResult* fr = index->second;
+                               if (index != filters.begin())
                                {
-                                       chanrec* t = (chanrec*)dest;
-                                       target = std::string(t->name);
-                               }
-                               if (do_action == "block")
-                               {       
-                                       Srv->SendOpers(std::string("FILTER: ")+std::string(user->nick)+
-                                                       std::string(" had their message filtered, target was ")+
-                                                       target+": "+reason);
-                                       // this form of SendTo (with the source as NuLL) sends a server notice
-                                       Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+
-                                                       " :Your message has been filtered and opers notified: "+reason);
+                                       std::string pat = index->first;
+                                       filters.erase(index);
+                                       filters.insert(filters.begin(), std::make_pair(pat,fr));
                                }
+                               return fr;
+                       }
+               }
+               return NULL;
+       }
 
-                               Srv->Log(DEFAULT,std::string("FILTER: ")+std::string(user->nick)+
-                                               std::string(" had their message filtered, target was ")+
-                                               target+": "+reason+" Action: "+do_action);
+       virtual bool DeleteFilter(const std::string &freeform)
+       {
+               if (filters.find(freeform) != filters.end())
+               {
+                       delete (filters.find(freeform))->second;
+                       filters.erase(filters.find(freeform));
+                       return true;
+               }
+               return false;
+       }
 
-                               if (do_action == "kill")
-                               {
-                                       Srv->QuitUser(user,reason);
-                               }
-                               return 1;
-                       }
+       virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration)
+       {
+               if (filters.find(freeform) != filters.end())
+               {
+                       return std::make_pair(false, "Filter already exists");
                }
-               return 0;
+
+               FilterResult* x = new FilterResult;
+               x->reason = reason;
+               x->action = type;
+               x->gline_time = duration;
+               x->freeform = freeform;
+               filters[freeform] = x;
+
+               return std::make_pair(true, "");
        }
-       
-       virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
+
+       virtual void SyncFilters(Module* proto, void* opaque)
        {
-               std::string text2 = text+" ";
-               for (int index = 0; index < MyConf->Enumerate("keyword"); index++)
+               for (filter_t::iterator n = filters.begin(); n != filters.end(); n++)
                {
-                       std::string pattern = MyConf->ReadValue("keyword","pattern",index);
-                       if ((Srv->MatchText(text2,pattern)) || (Srv->MatchText(text,pattern)))
-                       {
-                               std::string target = "";
-                               std::string reason = MyConf->ReadValue("keyword","reason",index);
-                               std::string do_action = MyConf->ReadValue("keyword","action",index);
-
-                               if (do_action == "")
-                                       do_action = "none";
-                                       
-                               if (target_type == TYPE_USER)
-                               {
-                                       userrec* t = (userrec*)dest;
-                                       target = std::string(t->nick);
-                               }
-                               else if (target_type == TYPE_CHANNEL)
-                               {
-                                       chanrec* t = (chanrec*)dest;
-                                       target = std::string(t->name);
-                               }
-                               if (do_action == "block")
-                               {       
-                                       Srv->SendOpers(std::string("FILTER: ")+std::string(user->nick)+
-                                                       std::string(" had their notice filtered, target was ")+
-                                                       target+": "+reason);
-                                       Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+
-                                                       " :Your notice has been filtered and opers notified: "+reason);
-                               }
-                               Srv->Log(DEFAULT,std::string("FILTER: ")+std::string(user->nick)+
-                                               std::string(" had their notice filtered, target was ")+
-                                               target+": "+reason+" Action: "+do_action);
-
-                               if (do_action == "kill")
-                               {
-                                       Srv->QuitUser(user,reason);
-                               }
-                               return 1;
-                       }
+                       this->SendFilter(proto, opaque, n->second);
                }
-               return 0;
        }
-       
-       virtual void OnRehash(std::string parameter)
+
+       virtual void OnRehash(userrec* user, const std::string &parameter)
        {
-               // reload our config file on rehash - we must destroy and re-allocate the classes
-               // to call the constructor again and re-read our data.
-               delete Conf;
-               delete MyConf;
-               Conf = new ConfigReader;
-               std::string filterfile = Conf->ReadValue("filter","file",0);
-               // this automatically re-reads the configuration file into the class
-               MyConf = new ConfigReader(filterfile);
-               if ((filterfile == "") || (!MyConf->Verify()))
+               ConfigReader* MyConf = new ConfigReader(ServerInstance);
+
+               for (int index = 0; index < MyConf->Enumerate("keyword"); index++)
                {
-                       // bail if the user forgot to create a config file
-                       printf("Error, could not find <filter file=\"\"> definition in your config file!");
-                       log(DEFAULT,"Error, could not find <filter file=\"\"> definition in your config file!");
-                       return;
+                       this->DeleteFilter(MyConf->ReadValue("keyword","pattern",index));
+
+                       std::string pattern = MyConf->ReadValue("keyword","pattern",index);
+                       std::string reason = MyConf->ReadValue("keyword","reason",index);
+                       std::string do_action = MyConf->ReadValue("keyword","action",index);
+                       long gline_time = ServerInstance->Duration(MyConf->ReadValue("keyword","duration",index).c_str());
+                       if (do_action == "")
+                               do_action = "none";
+                       FilterResult* x = new FilterResult;
+                       x->reason = reason;
+                       x->action = do_action;
+                       x->gline_time = gline_time;
+                       x->freeform = pattern;
+                       filters[pattern] = x;
                }
-               Srv->Log(DEFAULT,std::string("m_filter: read configuration from ")+filterfile);
+               DELETE(MyConf);
        }
-       
-       virtual Version GetVersion()
+
+       virtual int OnStats(char symbol, userrec* user, string_list &results)
        {
-               // This is version 2 because version 1.x is the unreleased unrealircd module
-               return Version(2,0,0,1,VF_VENDOR);
+               if (symbol == 's')
+               {
+                       std::string sn = ServerInstance->Config->ServerName;
+                       for (filter_t::iterator n = filters.begin(); n != filters.end(); n++)
+                       {
+                               results.push_back(sn+" 223 "+user->nick+" :GLOB:"+n->second->freeform+" "+n->second->action+" "+ConvToStr(n->second->gline_time)+" :"+n->second->reason);
+                       }
+               }
+               return 0;
        }
-       
 };
 
 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
@@ -201,7 +144,7 @@ class ModuleFilterFactory : public ModuleFactory
        {
        }
        
-       virtual Module * CreateModule(Server* Me)
+       virtual Module * CreateModule(InspIRCd* Me)
        {
                return new ModuleFilter(Me);
        }
@@ -209,7 +152,7 @@ class ModuleFilterFactory : public ModuleFactory
 };
 
 
-extern "C" void * init_module( void )
+extern "C" DllExport void * init_module( void )
 {
        return new ModuleFilterFactory;
 }