src/modules/m_spanningtree/postcommand.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
   6  *
   7  * This file is part of InspIRCd.  InspIRCd is free software: you can
   8  * redistribute it and/or modify it under the terms of the GNU General Public
   9  * License as published by the Free Software Foundation, version 2.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  14  * details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "inspircd.h"
  21
  22 #include "main.h"
  23 #include "utils.h"
  24 #include "treeserver.h"
  25 #include "commandbuilder.h"
  26
  27 void ModuleSpanningTree::OnPostCommand(Command* command, const std::vector<std::string>& parameters, LocalUser* user, CmdResult result, const std::string& original_line)
  28 {
  29         if (result == CMD_SUCCESS)
  30                 Utils->RouteCommand(NULL, command, parameters, user);
  31 }
  32
  33 void SpanningTreeUtilities::RouteCommand(TreeServer* origin, CommandBase* thiscmd, const parameterlist& parameters, User* user)
  34 {
  35         const std::string& command = thiscmd->name;
  36         RouteDescriptor routing = thiscmd->GetRouting(user, parameters);
  37         if (routing.type == ROUTE_TYPE_LOCALONLY)
  38                 return;
  39
  40         const bool encap = ((routing.type == ROUTE_TYPE_OPT_BCAST) || (routing.type == ROUTE_TYPE_OPT_UCAST));
  41         CmdBuilder params(user, encap ? "ENCAP" : command.c_str());
  42
  43         if (routing.type == ROUTE_TYPE_OPT_BCAST)
  44         {
  45                 params.push('*');
  46                 params.push_back(command);
  47         }
  48         else if (routing.type == ROUTE_TYPE_OPT_UCAST)
  49         {
  50                 TreeServer* sdest = FindServer(routing.serverdest);
  51                 if (!sdest)
  52                 {
  53                         ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Trying to route ENCAP to nonexistant server %s",
  54                                 routing.serverdest.c_str());
  55                         return;
  56                 }
  57                 params.push_back(sdest->GetID());
  58                 params.push_back(command);
  59         }
  60         else
  61         {
  62                 Module* srcmodule = thiscmd->creator;
  63                 Version ver = srcmodule->GetVersion();
  64
  65                 if (!(ver.Flags & (VF_COMMON | VF_CORE)) && srcmodule != Creator)
  66                 {
  67                         ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Routed command %s from non-VF_COMMON module %s",
  68                                 command.c_str(), srcmodule->ModuleSourceFile.c_str());
  69                         return;
  70                 }
  71         }
  72
  73         std::string output_text = CommandParser::TranslateUIDs(thiscmd->translation, parameters, true, thiscmd);
  74
  75         params.push_back(output_text);
  76
  77         if (routing.type == ROUTE_TYPE_MESSAGE)
  78         {
  79                 char pfx = 0;
  80                 std::string dest = routing.serverdest;
  81                 if (ServerInstance->Modes->FindPrefix(dest[0]))
  82                 {
  83                         pfx = dest[0];
  84                         dest = dest.substr(1);
  85                 }
  86                 if (dest[0] == '#')
  87                 {
  88                         Channel* c = ServerInstance->FindChan(dest);
  89                         if (!c)
  90                                 return;
  91                         // TODO OnBuildExemptList hook was here
  92                         CUList exempts;
  93                         SendChannelMessage(user->uuid, c, parameters[1], pfx, exempts, command.c_str(), origin ? origin->GetSocket() : NULL);
  94                 }
  95                 else if (dest[0] == '$')
  96                 {
  97                         params.Forward(origin);
  98                 }
  99                 else
 100                 {
 101                         // user target?
 102                         User* d = ServerInstance->FindNick(dest);
 103                         if (!d)
 104                                 return;
 105                         TreeServer* tsd = BestRouteTo(d->server);
 106                         if (tsd == origin)
 107                                 // huh? no routing stuff around in a circle, please.
 108                                 return;
 109                         params.Unicast(d);
 110                 }
 111         }
 112         else if (routing.type == ROUTE_TYPE_BROADCAST || routing.type == ROUTE_TYPE_OPT_BCAST)
 113         {
 114                 params.Forward(origin);
 115         }
 116         else if (routing.type == ROUTE_TYPE_UNICAST || routing.type == ROUTE_TYPE_OPT_UCAST)
 117         {
 118                 if (origin && routing.serverdest == origin->GetName())
 119                         return;
 120                 params.Unicast(routing.serverdest);
 121         }
 122 }