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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "m_override.h"
/* $ModDesc: Provides support for unreal-style oper-override */
typedef std::map<std::string,std::string> override_t;
class ModuleOverride : public Module
{
override_t overrides;
bool RequireKey;
bool NoisyOverride;
public:
ModuleOverride()
{
// read our config options (main config file)
OnRehash(NULL);
ServerInstance->SNO->EnableSnomask('G', "GODMODE");
if (!ServerInstance->Modules->PublishFeature("Override", this))
{
throw ModuleException("m_override: Unable to publish feature 'Override'");
}
Implementation eventlist[] = { I_OnRehash, I_OnPreMode, I_On005Numeric, I_OnUserPreJoin, I_OnUserPreKick, I_OnPreTopicChange, I_OnRequest };
ServerInstance->Modules->Attach(eventlist, this, 7);
}
void OnRehash(User* user)
{
// on a rehash we delete our classes for good measure and create them again.
ConfigReader Conf;
// re-read our config options on a rehash
NoisyOverride = Conf.ReadFlag("override", "noisy", 0);
RequireKey = Conf.ReadFlag("override", "requirekey", 0);
overrides.clear();
for (int j =0; j < Conf.Enumerate("type"); j++)
{
std::string typen = Conf.ReadValue("type","name",j);
std::string tokenlist = Conf.ReadValue("type","override",j);
overrides[typen] = tokenlist;
}
}
void On005Numeric(std::string &output)
{
output.append(" OVERRIDE");
}
bool CanOverride(User* source, const char* token)
{
// checks to see if the oper's type has <type:override>
override_t::iterator j = overrides.find(source->oper);
if (j != overrides.end())
{
// its defined or * is set, return its value as a boolean for if the token is set
return ((j->second.find(token, 0) != std::string::npos) || (j->second.find("*", 0) != std::string::npos));
}
// its not defined at all, count as false
return false;
}
ModResult OnPreTopicChange(User *source, Channel *channel, const std::string &topic)
{
if (IS_LOCAL(source) && IS_OPER(source) && CanOverride(source, "TOPIC"))
{
if (!channel->HasUser(source) || (channel->IsModeSet('t') && channel->GetPrefixValue(source) < HALFOP_VALUE))
{
ServerInstance->SNO->WriteGlobalSno('G',std::string(source->nick)+" used oper override to change a topic on "+std::string(channel->name));
}
// Explicit allow
return MOD_RES_ALLOW;
}
return MOD_RES_PASSTHRU;
}
ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason)
{
if (IS_OPER(source) && CanOverride(source,"KICK"))
{
// If the kicker's status is less than the target's, or the kicker's status is less than or equal to voice
if ((memb->chan->GetPrefixValue(source) < memb->getRank()) || (memb->chan->GetPrefixValue(source) <= VOICE_VALUE))
{
ServerInstance->SNO->WriteGlobalSno('G',std::string(source->nick)+" used oper override to kick "+std::string(memb->user->nick)+" on "+std::string(memb->chan->name)+" ("+reason+")");
return MOD_RES_ALLOW;
}
}
return MOD_RES_PASSTHRU;
}
ModResult OnPreMode(User* source,User* dest,Channel* channel, const std::vector<std::string>& parameters)
{
if (!IS_OPER(source))
return MOD_RES_PASSTHRU;
if (!source || !channel)
return MOD_RES_PASSTHRU;
unsigned int mode = 0;
if (channel->HasUser(source))
mode = channel->GetPrefixValue(source);
if (mode < HALFOP_VALUE && CanOverride(source, "MODE"))
{
std::string msg = std::string(source->nick)+" overriding modes:";
for(unsigned int i=0; i < parameters.size(); i++)
msg += " " + parameters[i];
ServerInstance->SNO->WriteGlobalSno('G',msg);
return MOD_RES_ALLOW;
}
return MOD_RES_PASSTHRU;
}
ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
{
if (IS_LOCAL(user) && IS_OPER(user))
{
if (chan)
{
if ((chan->modes[CM_INVITEONLY]) && (CanOverride(user,"INVITE")))
{
irc::string x(chan->name.c_str());
if (!user->IsInvited(x))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s used oper override to bypass invite-only", cname, user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('G', user->nick+" used oper override to bypass +i on "+std::string(cname));
}
return MOD_RES_ALLOW;
}
if ((chan->modes[CM_KEY]) && (CanOverride(user,"KEY")) && keygiven != chan->GetModeParameter('k'))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s used oper override to bypass the channel key", cname, user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('G', user->nick+" used oper override to bypass +k on "+std::string(cname));
return MOD_RES_ALLOW;
}
if ((chan->modes[CM_LIMIT]) && (chan->GetUserCounter() >= atoi(chan->GetModeParameter('l').c_str())) && (CanOverride(user,"LIMIT")))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s used oper override to bypass the channel limit", cname, user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('G', user->nick+" used oper override to bypass +l on "+std::string(cname));
return MOD_RES_ALLOW;
}
if (chan->IsBanned(user) && CanOverride(user,"BANWALK"))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s used oper override to bypass channel ban", cname, user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('G',"%s used oper override to bypass channel ban on %s", user->nick.c_str(), cname);
return MOD_RES_ALLOW;
}
}
}
return MOD_RES_PASSTHRU;
}
const char* OnRequest(Request* request)
{
if(strcmp(OVRREQID, request->GetId()) == 0)
{
OVRrequest* req = static_cast<OVRrequest*>(request);
return this->CanOverride(req->requser,req->reqtoken.c_str()) ? "yes":"";
}
return NULL;
}
~ModuleOverride()
{
ServerInstance->Modules->UnpublishFeature("Override");
ServerInstance->SNO->DisableSnomask('G');
}
Version GetVersion()
{
return Version("Provides support for unreal-style oper-override",VF_VENDOR,API_VERSION);
}
};
MODULE_INIT(ModuleOverride)
|
