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/* +------------------------------------+
* | Inspire 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.
*
* ---------------------------------------------------
*/
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 "users.h"
#include "channels.h"
#include "modules.h"
#include "helperfuncs.h"
/* $ModDesc: An enhanced version of the unreal m_filter.so used by chatspike.net */
class Filter : public classbase
{
public:
std::string reason;
std::string action;
};
typedef std::map<std::string,Filter*> filter_t;
class FilterException : public ModuleException
{
public:
virtual const char* GetReason()
{
return "Could not find <filter file=\"\"> definition in your config file!";
}
};
class ModuleFilter : public Module
{
Server *Srv;
filter_t filters;
public:
ModuleFilter(Server* Me)
: Module::Module(Me)
{
// 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;
OnRehash("");
}
virtual ~ModuleFilter()
{
}
void Implements(char* List)
{
List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;
}
// 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, char status)
{
return OnUserPreNotice(user,dest,target_type,text,status);
}
virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
{
std::string text2 = text+" ";
for (filter_t::iterator index = filters.begin(); index != filters.end(); index++)
{
if ((Srv->MatchText(text2,index->first)) || (Srv->MatchText(text,index->first)))
{
Filter* f = (Filter*)index->second;
std::string target = "";
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 (f->action == "block")
{
Srv->SendOpers(std::string("FILTER: ")+std::string(user->nick)+
std::string(" had their notice filtered, target was ")+
target+": "+f->reason);
Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+
" :Your notice has been filtered and opers notified: "+f->reason);
}
Srv->Log(DEFAULT,std::string("FILTER: ")+std::string(user->nick)+
std::string(" had their notice filtered, target was ")+
target+": "+f->reason+" Action: "+f->action);
if (f->action == "kill")
{
Srv->QuitUser(user,f->reason);
}
return 1;
}
}
return 0;
}
virtual void OnRehash(const std::string ¶meter)
{
// 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;
std::string filterfile = Conf->ReadValue("filter","file",0);
// this automatically re-reads the configuration file into the class
ConfigReader* MyConf = new ConfigReader(filterfile);
if ((filterfile == "") || (!MyConf->Verify()))
{
// bail if the user forgot to create a config file
FilterException e;
throw(e);
}
for (filter_t::iterator n = filters.begin(); n != filters.end(); n++)
{
DELETE(n->second);
}
filters.clear();
for (int index = 0; index < MyConf->Enumerate("keyword"); 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);
if (do_action == "")
do_action = "none";
Filter* x = new Filter;
x->reason = reason;
x->action = do_action;
filters[pattern] = x;
}
Srv->Log(DEFAULT,std::string("m_filter: read configuration from ")+filterfile);
DELETE(Conf);
DELETE(MyConf);
}
virtual Version GetVersion()
{
// This is version 2 because version 1.x is the unreleased unrealircd module
return Version(2,0,0,2,VF_VENDOR);
}
};
// stuff down here is the module-factory stuff. For basic modules you can ignore this.
class ModuleFilterFactory : public ModuleFactory
{
public:
ModuleFilterFactory()
{
}
~ModuleFilterFactory()
{
}
virtual Module * CreateModule(Server* Me)
{
return new ModuleFilter(Me);
}
};
extern "C" void * init_module( void )
{
return new ModuleFilterFactory;
}
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