CmdResult CommandRConnect::Handle(User* user, const Params& parameters)
{
/* First see if the server which is being asked to connect to another server in fact exists */
if (!Utils->FindServerMask(parameters[0]))
{
user->WriteRemoteNotice(InspIRCd::Format("*** RCONNECT: Server \002%s\002 isn't connected to the network!", parameters[0].c_str()));
return CMD_FAILURE;
}
/* Is this aimed at our server? */
if (InspIRCd::Match(ServerInstance->Config->ServerName,parameters[0]))
{
/* Yes, initiate the given connect */
ServerInstance->SNO.WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick.c_str(),parameters[0].c_str(),parameters[1].c_str());
CommandBase::Params para;
para.push_back(parameters[1]);
((ModuleSpanningTree*)(Module*)creator)->HandleConnect(para, user);
}
else
{
/* It's not aimed at our server, but if the request originates from our user
* acknowledge that we sent the request.
*
* It's possible that we're asking a server for something that makes no sense
* (e.g. connect to itself or to an already connected server), but we don't check
* for those conditions here, as ModuleSpanningTree::HandleConnect() (which will run
* on the target) does all the checking and error reporting.
*/
if (IS_LOCAL(user))
{
user->WriteNotice("*** RCONNECT: Sending remote connect to \002 " + parameters[0] + "\002 to connect server \002" + parameters[1] + "\002.");
}
}
return CMD_SUCCESS;
}
void OnWhois(Whois::Context& whois) override
{
User* const source = whois.GetSource();
User* const dest = whois.GetTarget();
if (!dest->IsModeSet(sw) || whois.IsSelfWhois())
return;
if (!ShowWhoisFromOpers && source->IsOper())
return;
if (IS_LOCAL(dest))
{
cmd.HandleFast(dest, source);
}
else
{
CommandBase::Params params;
params.push_back(dest->uuid);
params.push_back(source->uuid);
ServerInstance->PI->SendEncapsulatedData(dest->server->GetName(), cmd.name, params);
}
}
ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated) override
{
if (validated)
return MOD_RES_PASSTHRU;
if (!ServerInstance->XLines->MatchesLine("SHUN", user))
{
/* Not shunned, don't touch. */
return MOD_RES_PASSTHRU;
}
if (!affectopers && user->IsOper())
{
/* Don't do anything if the user is an operator and affectopers isn't set */
return MOD_RES_PASSTHRU;
}
if (!ShunEnabledCommands.count(command))
{
if (NotifyOfShun)
user->WriteNotice("*** Command " + command + " not processed, as you have been blocked from issuing commands (SHUN)");
return MOD_RES_DENY;
}
if (command == "QUIT")
{
/* Allow QUIT but dont show any quit message */
parameters.clear();
}
else if ((command == "PART") && (parameters.size() > 1))
{
/* same for PART */
parameters.pop_back();
}
/* if we're here, allow the command. */
return MOD_RES_PASSTHRU;
}
void SpanningTreeUtilities::RouteCommand(TreeServer* origin, CommandBase* thiscmd, const CommandBase::Params& parameters, User* user)
{
const std::string& command = thiscmd->name;
RouteDescriptor routing = thiscmd->GetRouting(user, parameters);
if (routing.type == ROUTE_TYPE_LOCALONLY)
return;
const bool encap = ((routing.type == ROUTE_TYPE_OPT_BCAST) || (routing.type == ROUTE_TYPE_OPT_UCAST));
CmdBuilder params(user, encap ? "ENCAP" : command.c_str());
params.push_tags(parameters.GetTags());
TreeServer* sdest = NULL;
if (routing.type == ROUTE_TYPE_OPT_BCAST)
{
params.push('*');
params.push_back(command);
}
else if (routing.type == ROUTE_TYPE_UNICAST || routing.type == ROUTE_TYPE_OPT_UCAST)
{
sdest = static_cast<TreeServer*>(routing.server);
if (!sdest)
{
// Assume the command handler already validated routing.serverdest and have only returned success if the target is something that the
// user executing the command is allowed to look up e.g. target is not an uuid if user is local.
sdest = FindRouteTarget(routing.serverdest);
if (!sdest)
{
ServerInstance->Logs.Log(MODNAME, LOG_DEFAULT, "Trying to route %s%s to nonexistent server %s", (encap ? "ENCAP " : ""), command.c_str(), routing.serverdest.c_str());
return;
}
}
if (encap)
{
params.push_back(sdest->GetID());
params.push_back(command);
}
}
else
{
Module* srcmodule = thiscmd->creator;
Version ver = srcmodule->GetVersion();
if (!(ver.Flags & (VF_COMMON | VF_CORE)) && srcmodule != Creator)
{
ServerInstance->Logs.Log(MODNAME, LOG_DEFAULT, "Routed command %s from non-VF_COMMON module %s",
command.c_str(), srcmodule->ModuleSourceFile.c_str());
return;
}
}
std::string output_text = CommandParser::TranslateUIDs(thiscmd->translation, parameters, true, thiscmd);
params.push_back(output_text);
if (routing.type == ROUTE_TYPE_MESSAGE)
{
char pfx = 0;
std::string dest = routing.serverdest;
if (ServerInstance->Modes.FindPrefix(dest[0]))
{
pfx = dest[0];
dest.erase(dest.begin());
}
if (dest[0] == '#')
{
Channel* c = ServerInstance->FindChan(dest);
if (!c)
return;
// TODO OnBuildExemptList hook was here
CUList exempts;
std::string message;
if (parameters.size() >= 2)
message.assign(parameters[1]);
SendChannelMessage(user->uuid, c, message, pfx, parameters.GetTags(), exempts, command.c_str(), origin ? origin->GetSocket() : NULL);
}
else if (dest[0] == '$')
{
params.Forward(origin);
}
else
{
// user target?
User* d = ServerInstance->FindNick(dest);
if (!d || IS_LOCAL(d))
return;
TreeServer* tsd = TreeServer::Get(d)->GetRoute();
if (tsd == origin)
// huh? no routing stuff around in a circle, please.
return;
params.Unicast(d);
}
}
else if (routing.type == ROUTE_TYPE_BROADCAST || routing.type == ROUTE_TYPE_OPT_BCAST)
{
params.Forward(origin);
}
else if (routing.type == ROUTE_TYPE_UNICAST || routing.type == ROUTE_TYPE_OPT_UCAST)
{
params.Unicast(sdest->ServerUser);
}
}
CmdResult HandleRMB(User* user, const CommandBase::Params& parameters, bool fpart)
{
User* target;
Channel* channel;
std::string reason;
// If the command is a /REMOVE then detect the parameter order
bool neworder = ((fpart) || (parameters[0][0] == '#'));
/* Set these to the parameters needed, the new version of this module switches it's parameters around
* supplying a new command with the new order while keeping the old /remove with the older order.
* /remove <nick> <channel> [reason ...]
* /fpart <channel> <nick> [reason ...]
*/
const std::string& channame = parameters[neworder ? 0 : 1];
const std::string& username = parameters[neworder ? 1 : 0];
/* Look up the user we're meant to be removing from the channel */
if (IS_LOCAL(user))
target = ServerInstance->FindNickOnly(username);
else
target = ServerInstance->FindNick(username);
/* And the channel we're meant to be removing them from */
channel = ServerInstance->FindChan(channame);
/* Fix by brain - someone needs to learn to validate their input! */
if (!channel)
{
user->WriteNumeric(Numerics::NoSuchChannel(channame));
return CMD_FAILURE;
}
if ((!target) || (target->registered != REG_ALL))
{
user->WriteNumeric(Numerics::NoSuchNick(username));
return CMD_FAILURE;
}
if (!channel->HasUser(target))
{
user->WriteNotice(InspIRCd::Format("*** The user %s is not on channel %s", target->nick.c_str(), channel->name.c_str()));
return CMD_FAILURE;
}
if (target->server->IsULine())
{
user->WriteNumeric(ERR_CHANOPRIVSNEEDED, channame, "Only a u-line may remove a u-line from a channel.");
return CMD_FAILURE;
}
/* We support the +Q channel mode via. the m_nokicks module, if the module is loaded and the mode is set then disallow the /remove */
if ((!IS_LOCAL(user)) || (!supportnokicks) || (!channel->IsModeSet(nokicksmode)))
{
/* We'll let everyone remove their level and below, eg:
* ops can remove ops, halfops, voices, and those with no mode (no moders actually are set to 1)
a ulined target will get a higher level than it's possible for a /remover to get..so they're safe.
* Nobody may remove people with >= protectedrank rank.
*/
unsigned int ulevel = channel->GetPrefixValue(user);
unsigned int tlevel = channel->GetPrefixValue(target);
if ((!IS_LOCAL(user)) || ((ulevel > VOICE_VALUE) && (ulevel >= tlevel) && ((protectedrank == 0) || (tlevel < protectedrank))))
{
// REMOVE will be sent to the target's server and it will reply with a PART (or do nothing if it doesn't understand the command)
if (!IS_LOCAL(target))
{
// Send an ENCAP REMOVE with parameters being in the old <user> <chan> order which is
// compatible with both 2.0 and 3.0. This also turns FPART into REMOVE.
CommandBase::Params p;
p.push_back(target->uuid);
p.push_back(channel->name);
if (parameters.size() > 2)
p.push_back(":" + parameters[2]);
ServerInstance->PI->SendEncapsulatedData(target->server->GetName(), "REMOVE", p, user);
return CMD_SUCCESS;
}
std::string reasonparam;
/* If a reason is given, use it */
if(parameters.size() > 2)
reasonparam = parameters[2];
else
reasonparam = "No reason given";
/* Build up the part reason string. */
reason = "Removed by " + user->nick + ": " + reasonparam;
channel->WriteNotice(InspIRCd::Format("%s removed %s from the channel", user->nick.c_str(), target->nick.c_str()));
target->WriteNotice("*** " + user->nick + " removed you from " + channel->name + " with the message: " + reasonparam);
channel->PartUser(target, reason);
}
else
{
user->WriteNotice(InspIRCd::Format("*** You do not have access to /remove %s from %s", target->nick.c_str(), channel->name.c_str()));
return CMD_FAILURE;
}
}
else
{
/* m_nokicks.so was loaded and +Q was set, block! */
user->WriteNumeric(ERR_RESTRICTED, channel->name, InspIRCd::Format("Can't remove user %s from channel (nokicks mode is set)", target->nick.c_str()));
return CMD_FAILURE;
}
return CMD_SUCCESS;
}