]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/fjoin.cpp
Minor spelling errors in m_spanningtree.so
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / fjoin.cpp
index 8048f36041c2e61a302346cc2e1ebb12d876113d..4ec6e1dbb0f3d502209775cbde367ce325455ba3 100644 (file)
@@ -1,29 +1,34 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2008 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
  *
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ * 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 "xline.h"
-
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/utils.h"
-
-/* $ModDep: m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */
 
+#include "inspircd.h"
+#include "commands.h"
+#include "treeserver.h"
+#include "treesocket.h"
 
 /** FJOIN, almost identical to TS6 SJOIN, except for nicklist handling. */
-bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &params)
+CmdResult CommandFJoin::Handle(const std::vector<std::string>& params, User *srcuser)
 {
+       SpanningTreeUtilities* Utils = ((ModuleSpanningTree*)(Module*)creator)->Utils;
        /* 1.1 FJOIN works as follows:
         *
         * Each FJOIN is sent along with a timestamp, and the side with the lowest
@@ -50,41 +55,39 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
         * losing side, so only its own modes get applied. Life is simple for those
         * who succeed at internets. :-)
         */
-       if (params.size() < 3)
-               return true;
 
-       irc::modestacker modestack(ServerInstance, true);                       /* Modes to apply from the users in the user list */
+       irc::modestacker modestack(true);                       /* Modes to apply from the users in the user list */
        User* who = NULL;                                               /* User we are currently checking */
        std::string channel = params[0];                                /* Channel name, as a string */
        time_t TS = atoi(params[1].c_str());                            /* Timestamp given to us for remote side */
        irc::tokenstream users((params.size() > 3) ? params[params.size() - 1] : "");   /* users from the user list */
        bool apply_other_sides_modes = true;                            /* True if we are accepting the other side's modes */
-       Channel* chan = this->ServerInstance->FindChan(channel);                /* The channel we're sending joins to */
+       Channel* chan = ServerInstance->FindChan(channel);              /* The channel we're sending joins to */
        bool created = !chan;                                           /* True if the channel doesnt exist here yet */
        std::string item;                                               /* One item in the list of nicks */
 
-       if (params.size() > 3)
-               params[params.size() - 1] = ":" + params[params.size() - 1];
-
-       Utils->DoOneToAllButSender(source,"FJOIN",params,source);
+       TreeServer* src_server = Utils->FindServer(srcuser->server);
+       TreeSocket* src_socket = src_server->GetRoute()->GetSocket();
 
        if (!TS)
        {
                ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"*** BUG? *** TS of 0 sent to FJOIN. Are some services authors smoking craq, or is it 1970 again?. Dropped.");
-               ServerInstance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending FJOIN with a TS of zero. Total craq. Command was dropped.", source.c_str());
-               return true;
+               ServerInstance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending FJOIN with a TS of zero. Total craq. Command was dropped.", srcuser->server.c_str());
+               return CMD_INVALID;
        }
 
        if (created)
        {
-               ServerInstance->SNO->WriteToSnoMask('d', "Creation FJOIN recieved for %s, timestamp: %lu", chan->name.c_str(), (unsigned long)TS);
-               chan = new Channel(ServerInstance, channel, TS);
+               chan = new Channel(channel, TS);
+               ServerInstance->SNO->WriteToSnoMask('d', "Creation FJOIN received for %s, timestamp: %lu", chan->name.c_str(), (unsigned long)TS);
        }
        else
        {
                time_t ourTS = chan->age;
 
-               ServerInstance->SNO->WriteToSnoMask('d', "Merge FJOIN recieved for %s, ourTS: %lu, TS: %lu", chan->name.c_str(), (unsigned long)TS, (unsigned long)TS);
+               if (TS != ourTS)
+                       ServerInstance->SNO->WriteToSnoMask('d', "Merge FJOIN received for %s, ourTS: %lu, TS: %lu, difference: %ld",
+                               chan->name.c_str(), (unsigned long)ourTS, (unsigned long)TS, (long)(ourTS - TS));
                /* If our TS is less than theirs, we dont accept their modes */
                if (ourTS < TS)
                {
@@ -95,13 +98,23 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
                {
                        /* Our TS greater than theirs, clear all our modes from the channel, accept theirs. */
                        ServerInstance->SNO->WriteToSnoMask('d', "Removing our modes, accepting remote");
-                       std::deque<std::string> param_list;
-                       if (Utils->AnnounceTSChange && chan)
-                               chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :TS for %s changed from %lu to %lu", chan->name.c_str(), chan->name.c_str(), (unsigned long) ourTS, (unsigned long) TS);
-                       ourTS = TS;
+                       parameterlist param_list;
+                       if (Utils->AnnounceTSChange)
+                               chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :TS for %s changed from %lu to %lu", chan->name.c_str(), channel.c_str(), (unsigned long) ourTS, (unsigned long) TS);
+                       // while the name is equal in case-insensitive compare, it might differ in case; use the remote version
+                       chan->name = channel;
                        chan->age = TS;
+                       chan->ClearInvites();
                        param_list.push_back(channel);
-                       this->RemoveStatus(ServerInstance->Config->GetSID(), param_list);
+                       this->RemoveStatus(ServerInstance->FakeClient, param_list);
+
+                       // XXX: If the channel does not exist in the chan hash at this point, create it so the remote modes can be applied on it.
+                       // This happens to 0-user permanent channels on the losing side, because those are removed (from the chan hash, then
+                       // deleted later) as soon as the permchan mode is removed from them.
+                       if (ServerInstance->FindChan(channel) == NULL)
+                       {
+                               chan = new Channel(channel, TS);
+                       }
                }
                // The silent case here is ourTS == TS, we don't need to remove modes here, just to merge them later on.
        }
@@ -109,20 +122,38 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
        /* First up, apply their modes if they won the TS war */
        if (apply_other_sides_modes)
        {
-               ServerInstance->SNO->WriteToSnoMask('d', "Applying remote modestring for %s", params[0].c_str());
-               unsigned int idx = 2;
+               // Need to use a modestacker here due to maxmodes
+               irc::modestacker stack(true);
+               std::vector<std::string>::const_iterator paramit = params.begin() + 3;
+               const std::vector<std::string>::const_iterator lastparamit = ((params.size() > 3) ? (params.end() - 1) : params.end());
+               for (std::string::const_iterator i = params[2].begin(); i != params[2].end(); ++i)
+               {
+                       ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL);
+                       if (!mh)
+                               continue;
+
+                       std::string modeparam;
+                       if ((paramit != lastparamit) && (mh->GetNumParams(true)))
+                       {
+                               modeparam = *paramit;
+                               ++paramit;
+                       }
+
+                       stack.Push(*i, modeparam);
+               }
+
                std::vector<std::string> modelist;
 
                // Mode parser needs to know what channel to act on.
                modelist.push_back(params[0]);
 
-               /* Remember, params[params.size() - 1] is nicklist, and we don't want to apply *that* */
-               for (idx = 2; idx != (params.size() - 1); idx++)
+               while (stack.GetStackedLine(modelist))
                {
-                       modelist.push_back(params[idx]);
+                       ServerInstance->Modes->Process(modelist, srcuser, true);
+                       modelist.erase(modelist.begin() + 1, modelist.end());
                }
 
-               this->ServerInstance->SendMode(modelist, this->ServerInstance->FakeClient);
+               ServerInstance->Modes->Process(modelist, srcuser, true);
        }
 
        /* Now, process every 'modes,nick' pair */
@@ -139,14 +170,13 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
                        while ((*unparsedmodes) && (*unparsedmodes != ','))
                        {
                                ModeHandler *mh = ServerInstance->Modes->FindMode(*unparsedmodes, MODETYPE_CHANNEL);
-                               if (mh)
-                                       modes += *unparsedmodes;
-                               else
+                               if (!mh)
                                {
-                                       this->SendError(std::string("Unknown status mode '")+(*unparsedmodes)+"' in FJOIN");
-                                       return false;
+                                       ServerInstance->Logs->Log("m_spanningtree", SPARSE, "Unrecognised mode %c, dropping link", *unparsedmodes);
+                                       return CMD_INVALID;
                                }
 
+                               modes += *unparsedmodes;
                                usr++;
                                unparsedmodes++;
                        }
@@ -155,23 +185,23 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
                        usr++;
 
                        /* Check the user actually exists */
-                       who = this->ServerInstance->FindUUID(usr);
+                       who = ServerInstance->FindUUID(usr);
                        if (who)
                        {
                                /* Check that the user's 'direction' is correct */
                                TreeServer* route_back_again = Utils->BestRouteTo(who->server);
-                               if ((!route_back_again) || (route_back_again->GetSocket() != this))
+                               if ((!route_back_again) || (route_back_again->GetSocket() != src_socket))
                                        continue;
 
                                /* Add any modes this user had to the mode stack */
                                for (std::string::iterator x = modes.begin(); x != modes.end(); ++x)
                                        modestack.Push(*x, who->nick);
 
-                               Channel::JoinUser(this->ServerInstance, who, channel.c_str(), true, "", true, TS);
+                               Channel::JoinUser(who, channel.c_str(), true, "", src_server->bursting, TS);
                        }
                        else
                        {
-                               ServerInstance->Logs->Log("m_spanningtree",SPARSE, "Ignored nonexistant user %s in fjoin to %s (probably quit?)", usr, channel.c_str());
+                               ServerInstance->Logs->Log("m_spanningtree",SPARSE, "Ignored nonexistent user %s in fjoin to %s (probably quit?)", usr, channel.c_str());
                                continue;
                        }
                }
@@ -180,36 +210,30 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &p
        /* Flush mode stacker if we lost the FJOIN or had equal TS */
        if (apply_other_sides_modes)
        {
-               std::deque<std::string> stackresult;
-               std::vector<std::string> mode_junk;
-               mode_junk.push_back(channel);
+               parameterlist stackresult;
+               stackresult.push_back(channel);
 
                while (modestack.GetStackedLine(stackresult))
                {
-                       for (size_t j = 0; j < stackresult.size(); j++)
-                       {
-                               mode_junk.push_back(stackresult[j]);
-                       }
-                       ServerInstance->SendMode(mode_junk, ServerInstance->FakeClient);
+                       ServerInstance->SendMode(stackresult, srcuser);
+                       stackresult.erase(stackresult.begin() + 1, stackresult.end());
                }
        }
-
-       return true;
+       return CMD_SUCCESS;
 }
 
-bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> &params)
+void CommandFJoin::RemoveStatus(User* srcuser, parameterlist &params)
 {
        if (params.size() < 1)
-               return true;
+               return;
 
        Channel* c = ServerInstance->FindChan(params[0]);
 
        if (c)
        {
-               irc::modestacker stack(ServerInstance, false);
-               std::deque<std::string> stackresult;
-               std::vector<std::string> mode_junk;
-               mode_junk.push_back(c->name);
+               irc::modestacker stack(false);
+               parameterlist stackresult;
+               stackresult.push_back(c->name);
 
                for (char modeletter = 'A'; modeletter <= 'z'; ++modeletter)
                {
@@ -225,12 +249,9 @@ bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string>
 
                while (stack.GetStackedLine(stackresult))
                {
-                       for (size_t j = 0; j < stackresult.size(); j++)
-                               mode_junk.push_back(stackresult[j]);
-
-                       ServerInstance->SendMode(mode_junk, ServerInstance->FakeClient);
+                       ServerInstance->SendMode(stackresult, srcuser);
+                       stackresult.erase(stackresult.begin() + 1, stackresult.end());
                }
        }
-       return true;
 }