src/modules/m_spanningtree/postcommand.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *        the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "socket.h"
  18 #include "xline.h"
  19 #include "../transport.h"
  20
  21 #include "main.h"
  22 #include "utils.h"
  23 #include "treeserver.h"
  24 #include "treesocket.h"
  25
  26 /* $ModDep: m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */
  27
  28 void ModuleSpanningTree::OnPostCommand(const std::string &command, const std::vector<std::string>& parameters, User *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, const std::string &command, const parameterlist& parameters, User *user)
  35 {
  36         if (!ServerInstance->IsValidModuleCommand(command, parameters.size(), user))
  37                 return;
  38
  39         /* We know it's non-null because IsValidModuleCommand returned true */
  40         Command* thiscmd = ServerInstance->Parser->GetHandler(command);
  41
  42         RouteDescriptor routing = thiscmd->GetRouting(user, parameters);
  43
  44         std::string sent_cmd = command;
  45         parameterlist params;
  46
  47         if (routing.type == ROUTE_TYPE_LOCALONLY)
  48         {
  49                 Module* srcmodule = thiscmd->creator;
  50                 Version ver = srcmodule->GetVersion();
  51
  52                 if ((ver.Flags & VF_CORE) && !IS_LOCAL(user))
  53                         routing = ROUTE_BROADCAST;
  54                 else
  55                         return;
  56                 if (user == ServerUser)
  57                         return;
  58         }
  59         else if (routing.type == ROUTE_TYPE_OPT_BCAST)
  60         {
  61                 params.push_back("*");
  62                 params.push_back(command);
  63                 sent_cmd = "ENCAP";
  64         }
  65         else if (routing.type == ROUTE_TYPE_OPT_UCAST)
  66         {
  67                 TreeServer* sdest = FindServer(routing.serverdest);
  68                 if (!sdest)
  69                 {
  70                         ServerInstance->Logs->Log("m_spanningtree",ERROR,"Trying to route ENCAP to nonexistant server %s",
  71                                 routing.serverdest.c_str());
  72                         return;
  73                 }
  74                 params.push_back(sdest->GetID());
  75                 params.push_back(command);
  76                 sent_cmd = "ENCAP";
  77         }
  78         else
  79         {
  80                 Module* srcmodule = thiscmd->creator;
  81                 Version ver = srcmodule->GetVersion();
  82
  83                 if (!(ver.Flags & (VF_COMMON | VF_CORE)))
  84                 {
  85                         ServerInstance->Logs->Log("m_spanningtree",ERROR,"Routed command %s from non-VF_COMMON module %s",
  86                                 command.c_str(), srcmodule->ModuleSourceFile.c_str());
  87                         return;
  88                 }
  89         }
  90
  91         std::string output_text;
  92         ServerInstance->Parser->TranslateUIDs(thiscmd->translation, parameters, output_text, true, thiscmd);
  93
  94         params.push_back(output_text);
  95
  96         if (routing.type == ROUTE_TYPE_MESSAGE)
  97         {
  98                 char pfx = 0;
  99                 std::string dest = routing.serverdest;
 100                 if (ServerInstance->Modes->FindPrefix(dest[0]))
 101                 {
 102                         pfx = dest[0];
 103                         dest = dest.substr(1);
 104                 }
 105                 if (dest[0] == '#')
 106                 {
 107                         Channel* c = ServerInstance->FindChan(dest);
 108                         if (!c)
 109                                 return;
 110                         TreeServerList list;
 111                         // TODO OnBuildExemptList hook was here
 112                         GetListOfServersForChannel(c,list,pfx, CUList());
 113                         std::string data = ":" + user->uuid + " " + sent_cmd;
 114                         for (unsigned int x = 0; x < params.size(); x++)
 115                                 data += " " + params[x];
 116                         for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 117                         {
 118                                 TreeSocket* Sock = i->second->GetSocket();
 119                                 if (origin && origin->GetSocket() == Sock)
 120                                         continue;
 121                                 if (Sock)
 122                                         Sock->WriteLine(data);
 123                         }
 124                 }
 125                 else if (dest[0] == '$')
 126                 {
 127                         if (origin)
 128                                 DoOneToAllButSender(user->uuid, sent_cmd, params, origin->GetName());
 129                         else
 130                                 DoOneToMany(user->uuid, sent_cmd, params);
 131                 }
 132                 else
 133                 {
 134                         // user target?
 135                         User* d = ServerInstance->FindNick(dest);
 136                         if (!d)
 137                                 return;
 138                         TreeServer* tsd = BestRouteTo(d->server);
 139                         if (tsd == origin)
 140                                 // huh? no routing stuff around in a circle, please.
 141                                 return;
 142                         DoOneToOne(user->uuid, sent_cmd, params, d->server);
 143                 }
 144         }
 145         else if (routing.type == ROUTE_TYPE_BROADCAST || routing.type == ROUTE_TYPE_OPT_BCAST)
 146         {
 147                 if (origin)
 148                         DoOneToAllButSender(user->uuid, sent_cmd, params, origin->GetName());
 149                 else
 150                         DoOneToMany(user->uuid, sent_cmd, params);
 151         }
 152         else if (routing.type == ROUTE_TYPE_UNICAST || routing.type == ROUTE_TYPE_OPT_UCAST)
 153         {
 154                 if (origin && routing.serverdest == origin->GetName())
 155                         return;
 156                 DoOneToOne(user->uuid, sent_cmd, params, routing.serverdest);
 157         }
 158 }