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|
/* +------------------------------------+
* | 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.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
using namespace std;
#include <stdio.h>
#include <string>
#include <vector>
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "helperfuncs.h"
#include "hashcomp.h"
/* $ModDesc: Provides channel-specific censor lists (like mode +G but varies from channel to channel) */
typedef std::vector<irc::string> SpamList;
class ModuleChanFilter : public Module
{
Server *Srv;
ConfigReader *Conf;
long MaxEntries;
public:
ModuleChanFilter(Server* Me)
: Module::Module(Me)
{
Srv = Me;
Conf = new ConfigReader;
Srv->AddExtendedListMode('g');
MaxEntries = Conf->ReadInteger("chanfilter","maxsize",0,true);
if (MaxEntries == 0)
MaxEntries = 32;
}
void Implements(char* List)
{
List[I_On005Numeric] = List[I_OnUserPart] = List[I_OnRehash] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnExtendedMode] = List[I_OnSendList] = List[I_OnSyncChannel] = 1;
}
virtual void On005Numeric(std::string &output)
{
std::stringstream line(output);
std::string temp1, temp2;
while (!line.eof())
{
line >> temp1;
if (temp1.substr(0,10) == "CHANMODES=")
{
// append the chanmode to the end
temp1 = temp1.substr(10,temp1.length());
temp1 = "CHANMODES=g" + temp1;
}
temp2 = temp2 + temp1 + " ";
}
if (temp2.length())
output = temp2.substr(0,temp2.length()-1);
}
virtual void OnUserPart(userrec* user, chanrec* channel)
{
// when the last user parts, delete the list
if (Srv->CountUsers(channel) == 1)
{
SpamList* spamlist = (SpamList*)channel->GetExt("spam_list");
if (spamlist)
{
channel->Shrink("spam_list");
delete spamlist;
}
}
}
virtual void OnRehash(std::string parameter)
{
delete Conf;
Conf = new ConfigReader;
// re-read our config options on a rehash
MaxEntries = Conf->ReadInteger("chanfilter","maxsize",0,true);
}
virtual int ProcessMessages(userrec* user,chanrec* chan,std::string &text)
{
// Create a copy of the string in irc::string
irc::string line = text.c_str();
SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
if (spamlist)
{
for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
{
if (line.find(*i) != std::string::npos)
{
WriteServ(user->fd,"936 %s %s :Your message contained a censored word, and was blocked",user->nick, chan->name);
return 1;
}
}
}
return 0;
}
virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
{
if (target_type == TYPE_CHANNEL)
{
return ProcessMessages(user,(chanrec*)dest,text);
}
else return 0;
}
virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
{
if (target_type == TYPE_CHANNEL)
{
return ProcessMessages(user,(chanrec*)dest,text);
}
else return 0;
}
virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms)
{
if ((modechar == 'g') && (type == MT_CHANNEL))
{
chanrec* chan = (chanrec*)target;
irc::string word = params[0].c_str();
if (mode_on)
{
SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
if (!spamlist)
{
spamlist = new SpamList;
chan->Extend("spam_list",(char*)spamlist);
}
if (spamlist->size() < (unsigned)MaxEntries)
{
for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
{
if (*i == word)
{
WriteServ(user->fd,"937 %s %s :The word %s is already on the spamfilter list",user->nick, chan->name,word.c_str());
return -1;
}
}
spamlist->push_back(word);
return 1;
}
WriteServ(user->fd,"939 %s %s :Channel spamfilter list is full",user->nick, chan->name);
return -1;
}
else
{
SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
if (spamlist)
{
for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
{
if (*i == word)
{
spamlist->erase(i);
return 1;
}
}
}
WriteServ(user->fd,"938 %s %s :No such spamfilter word is set",user->nick, chan->name);
return -1;
}
return -1;
}
return 0;
}
virtual void OnSendList(userrec* user, chanrec* channel, char mode)
{
if (mode == 'g')
{
SpamList* spamlist = (SpamList*)channel->GetExt("spam_list");
if (spamlist)
{
for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
{
WriteServ(user->fd,"941 %s %s %s",user->nick, channel->name,i->c_str());
}
}
WriteServ(user->fd,"940 %s %s :End of channel spamfilter list",user->nick, channel->name);
}
}
virtual ~ModuleChanFilter()
{
delete Conf;
}
virtual Version GetVersion()
{
return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
}
virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque)
{
SpamList* spamlist = (SpamList*)chan->GetExt("spam_list");
string_list commands;
if (spamlist)
{
for (SpamList::iterator i = spamlist->begin(); i != spamlist->end(); i++)
{
proto->ProtoSendMode(opaque,TYPE_CHANNEL,chan,"+g "+std::string(i->c_str()));
}
}
}
};
class ModuleChanFilterFactory : public ModuleFactory
{
public:
ModuleChanFilterFactory()
{
}
~ModuleChanFilterFactory()
{
}
virtual Module * CreateModule(Server* Me)
{
return new ModuleChanFilter(Me);
}
};
extern "C" void * init_module( void )
{
return new ModuleChanFilterFactory;
}
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