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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013-2016 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2013, 2018-2019 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007 Craig Edwards <brain@inspircd.org>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
#include "main.h"
#include "utils.h"
#include "treeserver.h"
#include "commandbuilder.h"
void ModuleSpanningTree::OnPostCommand(Command* command, const CommandBase::Params& parameters, LocalUser* user, CmdResult result, bool loop)
{
if (result == CMD_SUCCESS)
Utils->RouteCommand(NULL, command, parameters, user);
}
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(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(sdest->GetId());
params.push(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(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, 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);
}
}
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