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
  26 /* $ModDep: m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h */
  27
  28 void ModuleSpanningTree::OnPostCommand(Command* command, const std::vector<std::string>& parameters, LocalUser* user, CmdResult result, const std::string& original_line)
  29 {
  30         if (result == CMD_SUCCESS)
  31                 Utils->RouteCommand(NULL, command, parameters, user);
  32 }
  33
  34 void SpanningTreeUtilities::RouteCommand(TreeServer* origin, Command* thiscmd, const parameterlist& parameters, User* user)
  35 {
  36         const std::string& command = thiscmd->name;
  37         RouteDescriptor routing = thiscmd->GetRouting(user, parameters);
  38
  39         std::string sent_cmd = command;
  40         parameterlist params;
  41
  42         if (routing.type == ROUTE_TYPE_LOCALONLY)
  43         {
  44                 /* Broadcast when it's a core command with the default route descriptor and the source is a
  45                  * remote user or a remote server
  46                  */
  47
  48                 Version ver = thiscmd->creator->GetVersion();
  49                 if ((!(ver.Flags & VF_CORE)) || (IS_LOCAL(user)) || (IS_SERVER(user) == ServerInstance->FakeClient))
  50                         return;
  51
  52                 routing = ROUTE_BROADCAST;
  53         }
  54         else if (routing.type == ROUTE_TYPE_OPT_BCAST)
  55         {
  56                 params.push_back("*");
  57                 params.push_back(command);
  58                 sent_cmd = "ENCAP";
  59         }
  60         else if (routing.type == ROUTE_TYPE_OPT_UCAST)
  61         {
  62                 TreeServer* sdest = FindServer(routing.serverdest);
  63                 if (!sdest)
  64                 {
  65                         ServerInstance->Logs->Log("m_spanningtree", LOG_DEFAULT, "Trying to route ENCAP to nonexistant server %s",
  66                                 routing.serverdest.c_str());
  67                         return;
  68                 }
  69                 params.push_back(sdest->GetID());
  70                 params.push_back(command);
  71                 sent_cmd = "ENCAP";
  72         }
  73         else
  74         {
  75                 Module* srcmodule = thiscmd->creator;
  76                 Version ver = srcmodule->GetVersion();
  77
  78                 if (!(ver.Flags & (VF_COMMON | VF_CORE)) && srcmodule != Creator)
  79                 {
  80                         ServerInstance->Logs->Log("m_spanningtree", LOG_DEFAULT, "Routed command %s from non-VF_COMMON module %s",
  81                                 command.c_str(), srcmodule->ModuleSourceFile.c_str());
  82                         return;
  83                 }
  84         }
  85
  86         std::string output_text;
  87         ServerInstance->Parser->TranslateUIDs(thiscmd->translation, parameters, output_text, true, thiscmd);
  88
  89         params.push_back(output_text);
  90
  91         if (routing.type == ROUTE_TYPE_MESSAGE)
  92         {
  93                 char pfx = 0;
  94                 std::string dest = routing.serverdest;
  95                 if (ServerInstance->Modes->FindPrefix(dest[0]))
  96                 {
  97                         pfx = dest[0];
  98                         dest = dest.substr(1);
  99                 }
 100                 if (dest[0] == '#')
 101                 {
 102                         Channel* c = ServerInstance->FindChan(dest);
 103                         if (!c)
 104                                 return;
 105                         TreeServerList list;
 106                         // TODO OnBuildExemptList hook was here
 107                         GetListOfServersForChannel(c,list,pfx, CUList());
 108                         std::string data = ":" + user->uuid + " " + sent_cmd;
 109                         for (unsigned int x = 0; x < params.size(); x++)
 110                                 data += " " + params[x];
 111                         for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 112                         {
 113                                 TreeSocket* Sock = (*i)->GetSocket();
 114                                 if (origin && origin->GetSocket() == Sock)
 115                                         continue;
 116                                 if (Sock)
 117                                         Sock->WriteLine(data);
 118                         }
 119                 }
 120                 else if (dest[0] == '$')
 121                 {
 122                         if (origin)
 123                                 DoOneToAllButSender(user->uuid, sent_cmd, params, origin->GetName());
 124                         else
 125                                 DoOneToMany(user->uuid, sent_cmd, params);
 126                 }
 127                 else
 128                 {
 129                         // user target?
 130                         User* d = ServerInstance->FindNick(dest);
 131                         if (!d)
 132                                 return;
 133                         TreeServer* tsd = BestRouteTo(d->server);
 134                         if (tsd == origin)
 135                                 // huh? no routing stuff around in a circle, please.
 136                                 return;
 137                         DoOneToOne(user->uuid, sent_cmd, params, d->server);
 138                 }
 139         }
 140         else if (routing.type == ROUTE_TYPE_BROADCAST || routing.type == ROUTE_TYPE_OPT_BCAST)
 141         {
 142                 if (origin)
 143                         DoOneToAllButSender(user->uuid, sent_cmd, params, origin->GetName());
 144                 else
 145                         DoOneToMany(user->uuid, sent_cmd, params);
 146         }
 147         else if (routing.type == ROUTE_TYPE_UNICAST || routing.type == ROUTE_TYPE_OPT_UCAST)
 148         {
 149                 if (origin && routing.serverdest == origin->GetName())
 150                         return;
 151                 DoOneToOne(user->uuid, sent_cmd, params, routing.serverdest);
 152         }
 153 }