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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>
* <omster@gmail.com>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include <algorithm>
#include <vector>
#include <string>
#include <sstream>
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "helperfuncs.h"
#include "hashcomp.h"
#include "commands.h"
#include "configreader.h"
#include "inspircd.h"
/* $ModDesc: Gives /cban, aka C:lines. Think Q:lines, for channels. */
class CBan : public classbase
{
public:
irc::string chname;
std::string set_by;
time_t set_on;
long length;
std::string reason;
CBan()
{
}
CBan(irc::string cn, std::string sb, time_t so, long ln, std::string rs) : chname(cn), set_by(sb), set_on(so), length(ln), reason(rs)
{
}
};
bool CBanComp(const CBan &ban1, const CBan &ban2);
typedef std::vector<CBan> cbanlist;
/* cbans is declared here, as our type is right above. Don't try move it. */
cbanlist cbans;
class cmd_cban : public command_t
{
public:
cmd_cban(InspIRCd* Me) : command_t(Me, "CBAN", 'o', 1)
{
this->source = "m_cban.so";
this->
syntax = "<channel> [<duration> :<reason>]";
}
void Handle(const char** parameters, int pcnt, userrec *user)
{
/* syntax: CBAN #channel time :reason goes here */
/* 'time' is a human-readable timestring, like 2d3h2s. */
if(pcnt == 1)
{
/* form: CBAN #channel removes a CBAN */
for (cbanlist::iterator iter = cbans.begin(); iter != cbans.end(); iter++)
{
if (parameters[0] == iter->chname)
{
unsigned long remaining = (iter->set_on + iter->length) - ServerInstance->Time();
user->WriteServ( "386 %s %s :Removed CBAN with %lu seconds left before expiry (%s)", user->nick, iter->chname.c_str(), remaining, iter->reason.c_str());
cbans.erase(iter);
break;
}
}
}
else if (pcnt >= 2)
{
/* full form to add a CBAN */
if (ServerInstance->IsChannel(parameters[0]))
{
// parameters[0] = #channel
// parameters[1] = 1h3m2s
// parameters[2] = Tortoise abuser
long length = ServerInstance->Duration(parameters[1]);
std::string reason = (pcnt > 2) ? parameters[2] : "No reason supplied";
cbans.push_back(CBan(parameters[0], user->nick, ServerInstance->Time(), length, reason));
std::sort(cbans.begin(), cbans.end(), CBanComp);
if(length > 0)
{
user->WriteServ( "385 %s %s :Added %lu second channel ban (%s)", user->nick, parameters[0], length, reason.c_str());
ServerInstance->WriteOpers("*** %s added %lu second channel ban on %s (%s)", user->nick, length, parameters[0], reason.c_str());
}
else
{
user->WriteServ( "385 %s %s :Added permenant channel ban (%s)", user->nick, parameters[0], reason.c_str());
ServerInstance->WriteOpers("*** %s added permenant channel ban on %s (%s)", user->nick, parameters[0], reason.c_str());
}
}
else
{
user->WriteServ( "403 %s %s :Invalid channel name", user->nick, parameters[0]);
}
}
}
};
bool CBanComp(const CBan &ban1, const CBan &ban2)
{
return ((ban1.set_on + ban1.length) < (ban2.set_on + ban2.length));
}
class ModuleCBan : public Module
{
cmd_cban* mycommand;
public:
ModuleCBan(InspIRCd* Me) : Module::Module(Me)
{
mycommand = new cmd_cban(Me);
ServerInstance->AddCommand(mycommand);
}
void Implements(char* List)
{
List[I_OnUserPreJoin] = List[I_OnSyncOtherMetaData] = List[I_OnDecodeMetaData] = List[I_OnStats] = 1;
}
virtual int OnStats(char symbol, userrec* user, string_list &results)
{
ExpireBans();
if(symbol == 'C')
{
for(cbanlist::iterator iter = cbans.begin(); iter != cbans.end(); iter++)
{
unsigned long remaining = (iter->set_on + iter->length) - ServerInstance->Time();
results.push_back(std::string(ServerInstance->Config->ServerName)+" 210 "+user->nick+" "+iter->chname.c_str()+" "+iter->set_by+" "+ConvToStr(iter->set_on)+" "+ConvToStr(iter->length)+" "+ConvToStr(remaining)+" :"+iter->reason);
}
}
return 0;
}
virtual int OnUserPreJoin(userrec *user, chanrec *chan, const char *cname)
{
ExpireBans();
/* check cbans in here, and apply as necessary. */
for(cbanlist::iterator iter = cbans.begin(); iter != cbans.end(); iter++)
{
if(iter->chname == cname && !user->modes[UM_OPERATOR])
{
// Channel is banned.
user->WriteServ( "384 %s %s :Cannot join channel, CBANed (%s)", user->nick, cname, iter->reason.c_str());
ServerInstance->WriteOpers("*** %s tried to join %s which is CBANed (%s)", user->nick, cname, iter->reason.c_str());
return 1;
}
}
return 0;
}
virtual void OnSyncOtherMetaData(Module* proto, void* opaque)
{
for(cbanlist::iterator iter = cbans.begin(); iter != cbans.end(); iter++)
{
proto->ProtoSendMetaData(opaque, TYPE_OTHER, NULL, "cban", EncodeCBan(*iter));
}
}
virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
{
if((target_type == TYPE_OTHER) && (extname == "cban"))
{
cbans.push_back(DecodeCBan(extdata));
std::sort(cbans.begin(), cbans.end(), CBanComp);
}
}
virtual ~ModuleCBan()
{
}
virtual Version GetVersion()
{
return Version(1,0,0,1,VF_VENDOR);
}
std::string EncodeCBan(const CBan &ban)
{
std::ostringstream stream;
stream << ban.chname << " " << ban.set_by << " " << ban.set_on << " " << ban.length << " " << ban.reason;
return stream.str();
}
CBan DecodeCBan(const std::string &data)
{
CBan res;
std::istringstream stream(data);
stream >> res.chname;
stream >> res.set_by;
stream >> res.set_on;
stream >> res.length;
res.reason = stream.str();
return res;
}
void ExpireBans()
{
bool go_again = true;
while (go_again)
{
go_again = false;
for (cbanlist::iterator iter = cbans.begin(); iter != cbans.end(); iter++)
{
/* 0 == permanent, don't mess with them! -- w00t */
if (iter->length != 0)
{
if (iter->set_on + iter->length <= ServerInstance->Time())
{
ServerInstance->Log(DEBUG, "m_cban.so: Ban on %s expired, removing...", iter->chname.c_str());
ServerInstance->WriteOpers("*** %li second CBAN on %s (%s) set %u seconds ago expired", iter->length, iter->chname.c_str(), iter->reason.c_str(), ServerInstance->Time() - iter->set_on);
cbans.erase(iter);
go_again = true;
}
}
if (go_again == true)
break;
}
}
}
};
class ModuleCBanFactory : public ModuleFactory
{
public:
ModuleCBanFactory()
{
}
~ModuleCBanFactory()
{
}
virtual Module * CreateModule(InspIRCd* Me)
{
return new ModuleCBan(Me);
}
};
extern "C" void * init_module( void )
{
return new ModuleCBanFactory;
}
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