]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/main.cpp
Introduce ModeProcessFlags, can be passed to ModeParser::Process() to indicate local...
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / main.cpp
index 7d6974cf013ed73b431259e8ae6a41d02a0fcf3f..8c5439fbb239314f480a7b7c40121e067fd491fd 100644 (file)
@@ -1,65 +1,93 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007-2009 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
  *
- * 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/>.
  */
 
+
 /* $ModDesc: Provides a spanning tree server link protocol */
 
 #include "inspircd.h"
 #include "socket.h"
 #include "xline.h"
-#include "../transport.h"
+#include "iohook.h"
 
-#include "cachetimer.h"
 #include "resolvers.h"
 #include "main.h"
 #include "utils.h"
 #include "treeserver.h"
 #include "link.h"
 #include "treesocket.h"
-#include "rconnect.h"
-#include "rsquit.h"
+#include "commands.h"
 #include "protocolinterface.h"
 
-/* $ModDep: m_spanningtree/cachetimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h m_spanningtree/protocolinterface.h */
-
 ModuleSpanningTree::ModuleSpanningTree()
-       : max_local(0), max_global(0)
+       : commands(NULL), DNS(this, "DNS"), Utils(NULL)
+{
+}
+
+SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
+       : rconnect(module, module->Utils), rsquit(module, module->Utils),
+       svsjoin(module), svspart(module), svsnick(module), metadata(module),
+       uid(module), opertype(module), fjoin(module), ijoin(module), resync(module),
+       fmode(module), ftopic(module), fhost(module), fident(module), fname(module)
+{
+}
+
+void ModuleSpanningTree::init()
 {
-       ServerInstance->Modules->UseInterface("BufferedSocketHook");
        Utils = new SpanningTreeUtilities(this);
-       command_rconnect = new CommandRConnect(this, Utils);
-       ServerInstance->AddCommand(command_rconnect);
-       command_rsquit = new CommandRSQuit(this, Utils);
-       ServerInstance->AddCommand(command_rsquit);
-       RefreshTimer = new CacheRefreshTimer(Utils);
-       ServerInstance->Timers->AddTimer(RefreshTimer);
+       commands = new SpanningTreeCommands(this);
+       ServerInstance->Modules->AddService(commands->rconnect);
+       ServerInstance->Modules->AddService(commands->rsquit);
+       ServerInstance->Modules->AddService(commands->svsjoin);
+       ServerInstance->Modules->AddService(commands->svspart);
+       ServerInstance->Modules->AddService(commands->svsnick);
+       ServerInstance->Modules->AddService(commands->metadata);
+       ServerInstance->Modules->AddService(commands->uid);
+       ServerInstance->Modules->AddService(commands->opertype);
+       ServerInstance->Modules->AddService(commands->fjoin);
+       ServerInstance->Modules->AddService(commands->ijoin);
+       ServerInstance->Modules->AddService(commands->resync);
+       ServerInstance->Modules->AddService(commands->fmode);
+       ServerInstance->Modules->AddService(commands->ftopic);
+       ServerInstance->Modules->AddService(commands->fhost);
+       ServerInstance->Modules->AddService(commands->fident);
+       ServerInstance->Modules->AddService(commands->fname);
 
        Implementation eventlist[] =
        {
                I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
-               I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
-               I_OnChangeLocalUserHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
-               I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
-               I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats, I_OnEvent,
-               I_OnSetAway, I_OnPostCommand, I_OnUserConnect
+               I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
+               I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
+               I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRehash, I_OnPreRehash,
+               I_OnOper, I_OnAddLine, I_OnDelLine, I_OnLoadModule, I_OnStats,
+               I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
        };
        ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
 
        delete ServerInstance->PI;
-       ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils);
+       ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
        loopCall = false;
 
        // update our local user count
-       Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
+       Utils->TreeRoot->UserCount = ServerInstance->Users->local_users.size();
 }
 
 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
@@ -71,9 +99,9 @@ void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
        }
        for (unsigned int q = 0; q < Current->ChildCount(); q++)
        {
-               if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
+               if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
                {
-                       if (IS_OPER(user))
+                       if (user->IsOper())
                        {
                                 ShowLinks(Current->GetChild(q),user,hops+1);
                        }
@@ -84,23 +112,19 @@ void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
                }
        }
        /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
-       if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
+       if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
                return;
        /* Or if the server is hidden and they're not an oper */
-       else if ((Current->Hidden) && (!IS_OPER(user)))
+       else if ((Current->Hidden) && (!user->IsOper()))
                return;
 
-       user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
-                       (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
-                       (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
+       std::string servername = Current->GetName();
+       user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), servername.c_str(),
+                       (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
+                       (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
                        Current->GetDesc().c_str());
 }
 
-int ModuleSpanningTree::CountLocalServs()
-{
-       return Utils->TreeRoot->ChildCount();
-}
-
 int ModuleSpanningTree::CountServs()
 {
        return Utils->serverlist.size();
@@ -113,54 +137,6 @@ void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters,
        return;
 }
 
-void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
-{
-       unsigned int n_users = ServerInstance->Users->UserCount();
-
-       /* Only update these when someone wants to see them, more efficient */
-       if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
-               max_local = ServerInstance->Users->LocalUserCount();
-       if (n_users > max_global)
-               max_global = n_users;
-
-       unsigned int ulined_count = 0;
-       unsigned int ulined_local_count = 0;
-
-       /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
-        * locally and globally (locally means directly connected to us)
-        */
-       if ((Utils->HideULines) && (!IS_OPER(user)))
-       {
-               for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
-               {
-                       if (ServerInstance->ULine(q->second->GetName().c_str()))
-                       {
-                               ulined_count++;
-                               if (q->second->GetParent() == Utils->TreeRoot)
-                                       ulined_local_count++;
-                       }
-               }
-       }
-       user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
-                       n_users-ServerInstance->Users->ModeCount('i'),
-                       ServerInstance->Users->ModeCount('i'),
-                       ulined_count ? this->CountServs() - ulined_count : this->CountServs());
-
-       if (ServerInstance->Users->OperCount())
-               user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
-
-       if (ServerInstance->Users->UnregisteredUserCount())
-               user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
-
-       if (ServerInstance->ChannelCount())
-               user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
-
-       user->WriteNumeric(255, "%s :I have %d clients and %d servers",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
-       user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
-       user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
-       return;
-}
-
 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 {
        time_t mins_up = secs / 60;
@@ -169,9 +145,9 @@ std::string ModuleSpanningTree::TimeToStr(time_t secs)
        secs = secs % 60;
        mins_up = mins_up % 60;
        hours_up = hours_up % 24;
-       return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
-                       + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
-                       + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
+       return ((days_up ? (ConvToStr(days_up) + "d") : "")
+                       + (hours_up ? (ConvToStr(hours_up) + "h") : "")
+                       + (mins_up ? (ConvToStr(mins_up) + "m") : "")
                        + ConvToStr(secs) + "s");
 }
 
@@ -181,14 +157,19 @@ void ModuleSpanningTree::DoPingChecks(time_t curtime)
         * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
         * This prevents lost REMOTECONNECT notices
         */
-       timeval t;
-       gettimeofday(&t, NULL);
-       long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
+       long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 
+restart:
        for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
        {
                TreeServer *s = i->second;
 
+               if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
+               {
+                       s->GetSocket()->Close();
+                       goto restart;
+               }
+
                // Fix for bug #792, do not ping servers that are not connected yet!
                // Remote servers have Socket == NULL and local connected servers have
                // Socket->LinkState == CONNECTED
@@ -213,8 +194,7 @@ void ModuleSpanningTree::DoPingChecks(time_t curtime)
                                        // ... if we can find a proper route to them
                                        if (tsock)
                                        {
-                                               tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
-                                                               ServerInstance->Config->GetSID() + " " + s->GetID());
+                                               tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " + s->GetID());
                                                s->LastPingMsec = ts;
                                        }
                                }
@@ -225,10 +205,8 @@ void ModuleSpanningTree::DoPingChecks(time_t curtime)
                                        if (sock)
                                        {
                                                sock->SendError("Ping timeout");
-                                               sock->Squit(s,"Ping timeout");
-                                               ServerInstance->SE->DelFd(sock);
                                                sock->Close();
-                                               return;
+                                               goto restart;
                                        }
                                }
                        }
@@ -237,32 +215,49 @@ void ModuleSpanningTree::DoPingChecks(time_t curtime)
                        if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
                        {
                                /* The server hasnt responded, send a warning to opers */
-                               ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
+                               std::string servername = s->GetName();
+                               ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", servername.c_str(), Utils->PingWarnTime);
                                s->Warned = true;
                        }
                }
        }
 }
 
-void ModuleSpanningTree::ConnectServer(Autoconnect* y)
+void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 {
-       if (!y)
+       if (!a)
                return;
-       y->position++;
-       while (y->position < (int)y->servers.size())
+       for(unsigned int j=0; j < a->servers.size(); j++)
        {
-               Link* x = Utils->FindLink(y->servers[y->position]);
+               if (Utils->FindServer(a->servers[j]))
+               {
+                       // found something in this block. Should the server fail,
+                       // we want to start at the start of the list, not in the
+                       // middle where we left off
+                       a->position = -1;
+                       return;
+               }
+       }
+       if (on_timer && a->position >= 0)
+               return;
+       if (!on_timer && a->position < 0)
+               return;
+
+       a->position++;
+       while (a->position < (int)a->servers.size())
+       {
+               Link* x = Utils->FindLink(a->servers[a->position]);
                if (x)
                {
                        ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
-                       ConnectServer(x, y);
+                       ConnectServer(x, a);
                        return;
                }
-               y->position++;
+               a->position++;
        }
        // Autoconnect chain has been fully iterated; start at the beginning on the
        // next AutoConnectServers run
-       y->position = -1;
+       a->position = -1;
 }
 
 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
@@ -275,8 +270,7 @@ void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
                return;
        }
 
-       QueryType start_type = DNS_QUERY_A;
-       start_type = DNS_QUERY_AAAA;
+       DNS::QueryType start_type = DNS::QUERY_AAAA;
        if (strchr(x->IPAddr.c_str(),':'))
        {
                in6_addr n;
@@ -294,32 +288,34 @@ void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
        if (ipvalid)
        {
                /* Gave a hook, but it wasnt one we know */
-               if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
-                       return;
-               TreeSocket* newsocket = new TreeSocket(Utils, x->IPAddr,x->Port, x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, y, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
+               TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
                if (newsocket->GetFd() > -1)
                {
                        /* Handled automatically on success */
                }
                else
                {
-                       ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
+                       ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
+                               x->Name.c_str(), newsocket->getError().c_str());
                        ServerInstance->GlobalCulls.AddItem(newsocket);
-                       ConnectServer(y);
                }
        }
+       else if (!DNS)
+       {
+               ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Hostname given and m_dns.so is not loaded, unable to resolve.", x->Name.c_str());
+       }
        else
        {
+               ServernameResolver* snr = new ServernameResolver(Utils, *DNS, x->IPAddr, x, start_type, y);
                try
                {
-                       bool cached;
-                       ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, x->IPAddr, x, cached, start_type, y);
-                       ServerInstance->AddResolver(snr, cached);
+                       DNS->Process(snr);
                }
-               catch (ModuleException& e)
+               catch (DNS::Exception& e)
                {
+                       delete snr;
                        ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
-                       ConnectServer(y);
+                       ConnectServer(y, false);
                }
        }
 }
@@ -332,28 +328,13 @@ void ModuleSpanningTree::AutoConnectServers(time_t curtime)
                if (curtime >= x->NextConnectTime)
                {
                        x->NextConnectTime = curtime + x->Period;
-                       for(unsigned int j=0; j < x->servers.size(); j++)
-                       {
-                               if (Utils->FindServer(x->servers[j]))
-                               {
-                                       // found something in this block. Should the server fail,
-                                       // we want to start at the start of the list, not in the
-                                       // middle where we left off
-                                       x->position = -1;
-                                       goto dupe_found; // next autoconnect block
-                               }
-                       }
-                       // only start a new chain if we aren't running
-                       if (x->position == -1)
-                               ConnectServer(x);
+                       ConnectServer(x, true);
                }
-dupe_found:;
        }
 }
 
 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 {
-       std::vector<Autoconnect*> failovers;
        std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
        while (i != Utils->timeoutlist.end())
        {
@@ -361,21 +342,18 @@ void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
                std::pair<std::string, int> p = i->second;
                std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
                i++;
-               if (curtime > s->age + p.second)
+               if (s->GetLinkState() == DYING)
+               {
+                       Utils->timeoutlist.erase(me);
+                       s->Close();
+               }
+               else if (curtime > s->age + p.second)
                {
                        ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
-                       if (s->myautoconnect)
-                               failovers.push_back(s->myautoconnect);
                        Utils->timeoutlist.erase(me);
                        s->Close();
-                       ServerInstance->GlobalCulls.AddItem(s);
                }
        }
-       for(unsigned int j=0; j < failovers.size(); j++)
-       {
-               if (failovers[j]->position >= 0)
-                       ConnectServer(failovers[j]);
-       }
 }
 
 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
@@ -384,12 +362,13 @@ ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& para
        TreeServer* found = Utils->FindServerMask(parameters[0]);
        if (found)
        {
-               std::string Version = found->GetVersion();
-               user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
                if (found == Utils->TreeRoot)
                {
-                       ServerInstance->Config->Send005(user);
+                       // Pass to default VERSION handler.
+                       return MOD_RES_PASSTHRU;
                }
+               std::string Version = found->GetVersion();
+               user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
        }
        else
        {
@@ -402,15 +381,11 @@ ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& para
  */
 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 {
-       char text[MAXBUF];
-       va_list argsPtr;
-
-       va_start(argsPtr, format);
-       vsnprintf(text, MAXBUF, format, argsPtr);
-       va_end(argsPtr);
+       std::string text;
+       VAFORMAT(text, format, format);
 
        if (IS_LOCAL(user))
-               user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
+               user->WriteNotice(text);
        else
                ServerInstance->PI->SendUserNotice(user, text);
 }
@@ -437,7 +412,8 @@ ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& para
                        }
                        else
                        {
-                               RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
+                               std::string servername = CheckDupe->GetParent()->GetName();
+                               RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002", x->Name.c_str(), servername.c_str());
                                return MOD_RES_DENY;
                        }
                }
@@ -479,118 +455,40 @@ void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std:
        Utils->DoOneToMany(user->uuid,"TOPIC",params);
 }
 
-void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
+void ModuleSpanningTree::LocalMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list, const char* message_type)
 {
-       if (IS_LOCAL(user))
-       {
-               parameterlist params;
-               params.push_back(":"+text);
-               Utils->DoOneToMany(user->uuid,"WALLOPS",params);
-       }
-}
-
-void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
-{
-       /* Server origin */
-       if (user == NULL)
+       /* Server or remote origin, dest should always be non-null */
+       if ((!user) || (!IS_LOCAL(user)) || (!dest))
                return;
 
        if (target_type == TYPE_USER)
        {
-               User* d = (User*)dest;
-               if ((d->GetFd() < 0) && (IS_LOCAL(user)))
+               User* d = (User*) dest;
+               if (!IS_LOCAL(d))
                {
                        parameterlist params;
                        params.push_back(d->uuid);
                        params.push_back(":"+text);
-                       Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
+                       Utils->DoOneToOne(user->uuid, message_type, params, d->server);
                }
        }
        else if (target_type == TYPE_CHANNEL)
        {
-               if (IS_LOCAL(user))
-               {
-                       Channel *c = (Channel*)dest;
-                       if (c)
-                       {
-                               std::string cname = c->name;
-                               if (status)
-                                       cname = status + cname;
-                               TreeServerList list;
-                               Utils->GetListOfServersForChannel(c,list,status,exempt_list);
-                               for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
-                               {
-                                       TreeSocket* Sock = i->second->GetSocket();
-                                       if (Sock)
-                                               Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
-                               }
-                       }
-               }
+               Utils->SendChannelMessage(user->uuid, (Channel*)dest, text, status, exempt_list, message_type);
        }
        else if (target_type == TYPE_SERVER)
        {
-               if (IS_LOCAL(user))
-               {
-                       char* target = (char*)dest;
-                       parameterlist par;
-                       par.push_back(target);
-                       par.push_back(":"+text);
-                       Utils->DoOneToMany(user->uuid,"NOTICE",par);
-               }
+               char* target = (char*) dest;
+               parameterlist par;
+               par.push_back(target);
+               par.push_back(":"+text);
+               Utils->DoOneToMany(user->uuid, message_type, par);
        }
 }
 
-void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
+void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string& text, char status, const CUList& exempt_list, MessageType msgtype)
 {
-       /* Server origin */
-       if (user == NULL)
-               return;
-
-       if (target_type == TYPE_USER)
-       {
-               // route private messages which are targetted at clients only to the server
-               // which needs to receive them
-               User* d = (User*)dest;
-               if ((d->GetFd() < 0) && (IS_LOCAL(user)))
-               {
-                       parameterlist params;
-                       params.push_back(d->uuid);
-                       params.push_back(":"+text);
-                       Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
-               }
-       }
-       else if (target_type == TYPE_CHANNEL)
-       {
-               if (IS_LOCAL(user))
-               {
-                       Channel *c = (Channel*)dest;
-                       if (c)
-                       {
-                               std::string cname = c->name;
-                               if (status)
-                                       cname = status + cname;
-                               TreeServerList list;
-                               Utils->GetListOfServersForChannel(c,list,status,exempt_list);
-                               for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
-                               {
-                                       TreeSocket* Sock = i->second->GetSocket();
-                                       if (Sock)
-                                               Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
-                               }
-                       }
-               }
-       }
-       else if (target_type == TYPE_SERVER)
-       {
-               if (IS_LOCAL(user))
-               {
-                       char* target = (char*)dest;
-                       parameterlist par;
-                       par.push_back(target);
-                       par.push_back(":"+text);
-                       Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
-               }
-       }
+       LocalMessage(user, dest, target_type, text, status, exempt_list, (msgtype == MSG_PRIVMSG ? "PRIVMSG" : "NOTICE"));
 }
 
 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
@@ -600,7 +498,7 @@ void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
        DoConnectTimeout(curtime);
 }
 
-void ModuleSpanningTree::OnUserConnect(User* user)
+void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 {
        if (user->quitting)
                return;
@@ -615,44 +513,67 @@ void ModuleSpanningTree::OnUserConnect(User* user)
        params.push_back(user->GetIPString());
        params.push_back(ConvToStr(user->signon));
        params.push_back("+"+std::string(user->FormatModes(true)));
-       params.push_back(":"+std::string(user->fullname));
+       params.push_back(":"+user->fullname);
        Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 
-       Utils->TreeRoot->SetUserCount(1); // increment by 1
+       if (user->IsOper())
+       {
+               params.clear();
+               params.push_back(":");
+               params[0].append(user->oper->name);
+               Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
+       }
+
+       for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
+       {
+               ExtensionItem* item = i->first;
+               std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
+               if (!value.empty())
+                       ServerInstance->PI->SendMetaData(user, item->name, value);
+       }
+
+       Utils->TreeRoot->UserCount++;
 }
 
-void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
+void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
 {
        // Only do this for local users
        if (IS_LOCAL(memb->user))
        {
                parameterlist params;
-               // set up their permissions and the channel TS with FJOIN.
-               // All users are FJOINed now, because a module may specify
-               // new joining permissions for the user.
                params.push_back(memb->chan->name);
-               params.push_back(ConvToStr(memb->chan->age));
-               params.push_back(std::string("+") + memb->chan->ChanModes(true));
-               params.push_back(memb->modes+","+std::string(memb->user->uuid));
-               Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
+               if (created_by_local)
+               {
+                       params.push_back(ConvToStr(memb->chan->age));
+                       params.push_back(std::string("+") + memb->chan->ChanModes(true));
+                       params.push_back(memb->modes+","+memb->user->uuid);
+                       Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
+               }
+               else
+               {
+                       if (!memb->modes.empty())
+                       {
+                               params.push_back(ConvToStr(memb->chan->age));
+                               params.push_back(memb->modes);
+                       }
+                       Utils->DoOneToMany(memb->user->uuid, "IJOIN", params);
+               }
        }
 }
 
-ModResult ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
+void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 {
-       if (user->registered != REG_ALL)
-               return MOD_RES_PASSTHRU;
+       if (user->registered != REG_ALL || !IS_LOCAL(user))
+               return;
 
        parameterlist params;
        params.push_back(newhost);
        Utils->DoOneToMany(user->uuid,"FHOST",params);
-       return MOD_RES_PASSTHRU;
 }
 
 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 {
-       // only occurs for local clients
-       if (user->registered != REG_ALL)
+       if (user->registered != REG_ALL || !IS_LOCAL(user))
                return;
 
        parameterlist params;
@@ -662,8 +583,7 @@ void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 
 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 {
-       // only occurs for local clients
-       if (user->registered != REG_ALL)
+       if ((user->registered != REG_ALL) || (!IS_LOCAL(user)))
                return;
 
        parameterlist params;
@@ -703,7 +623,7 @@ void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const
        TreeServer* SourceServer = Utils->FindServer(user->server);
        if (SourceServer)
        {
-               SourceServer->SetUserCount(-1); // decrement by 1
+               SourceServer->UserCount--;
        }
 }
 
@@ -741,30 +661,18 @@ void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::s
        {
                Utils->DoOneToMany(source->uuid,"KICK",params);
        }
-       else if (IS_SERVER(source) && source != Utils->ServerUser)
+       else if (source == ServerInstance->FakeClient)
        {
                Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
        }
 }
 
-void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
-{
-       if (!IS_LOCAL(source))
-               return; // Only start routing if we're origin.
-
-       User::OperQuit.set(dest, operreason);
-       parameterlist params;
-       params.push_back(":"+operreason);
-       Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
-       params.clear();
-       params.push_back(dest->uuid);
-       params.push_back(":"+reason);
-       Utils->DoOneToMany(source->uuid,"KILL",params);
-}
-
 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 {
-       ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
+       if (loopCall)
+               return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
+
+       ServerInstance->Logs->Log("remoterehash", LOG_DEBUG, "called with param %s", parameter.c_str());
 
        // Send out to other servers
        if (!parameter.empty() && parameter[0] != '-')
@@ -778,34 +686,51 @@ void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 void ModuleSpanningTree::OnRehash(User* user)
 {
        // Re-read config stuff
-       Utils->ReadConfiguration(true);
-}
-
-void ModuleSpanningTree::OnLoadModule(Module* mod, const std::string &name)
-{
-       this->RedoConfig(mod, name);
+       try
+       {
+               Utils->ReadConfiguration();
+       }
+       catch (ModuleException& e)
+       {
+               // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
+               Utils->RefreshIPCache();
+               // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
+               std::string msg = "Error in configuration: ";
+               msg.append(e.GetReason());
+               ServerInstance->SNO->WriteToSnoMask('l', msg);
+               if (user && !IS_LOCAL(user))
+                       ServerInstance->PI->SendSNONotice("L", msg);
+       }
 }
 
-void ModuleSpanningTree::OnUnloadModule(Module* mod, const std::string &name)
+void ModuleSpanningTree::OnLoadModule(Module* mod)
 {
-       this->RedoConfig(mod, name);
+       std::string data;
+       data.push_back('+');
+       data.append(mod->ModuleSourceFile);
+       Version v = mod->GetVersion();
+       if (!v.link_data.empty())
+       {
+               data.push_back('=');
+               data.append(v.link_data);
+       }
+       ServerInstance->PI->SendMetaData(NULL, "modules", data);
 }
 
-void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
+void ModuleSpanningTree::OnUnloadModule(Module* mod)
 {
-       /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
-        * then we need to re-read our config again taking this into account.
-        */
-       modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
-       bool IsBufferSocketModule = false;
-
-       /* Did we find any modules? */
-       if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
-               IsBufferSocketModule = true;
+       ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 
-       if (name == "m_sha256.so" || IsBufferSocketModule)
+       unsigned int items = Utils->TreeRoot->ChildCount();
+       for(unsigned int x = 0; x < items; x++)
        {
-               Utils->ReadConfiguration(true);
+               TreeServer* srv = Utils->TreeRoot->GetChild(x);
+               TreeSocket* sock = srv->GetSocket();
+               if (sock && sock->GetIOHook() && sock->GetIOHook()->creator == mod)
+               {
+                       sock->SendError("SSL module unloaded");
+                       sock->Close();
+               }
        }
 }
 
@@ -814,12 +739,12 @@ void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
 // locally.
 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 {
-       if (IS_LOCAL(user))
-       {
-               parameterlist params;
-               params.push_back(opertype);
-               Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
-       }
+       if (user->registered != REG_ALL || !IS_LOCAL(user))
+               return;
+       parameterlist params;
+       params.push_back(":");
+       params[0].append(opertype);
+       Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 }
 
 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
@@ -827,11 +752,13 @@ void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
        if (!x->IsBurstable() || loopCall)
                return;
 
-       char data[MAXBUF];
-       snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
-       ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
        parameterlist params;
-       params.push_back(data);
+       params.push_back(x->type);
+       params.push_back(x->Displayable());
+       params.push_back(ServerInstance->Config->ServerName);
+       params.push_back(ConvToStr(x->set_time));
+       params.push_back(ConvToStr(x->duration));
+       params.push_back(":" + x->reason);
 
        if (!user)
        {
@@ -847,13 +774,12 @@ void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 
 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 {
-       if (x->type == "K")
+       if (!x->IsBurstable() || loopCall)
                return;
 
-       char data[MAXBUF];
-       snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
        parameterlist params;
-       params.push_back(data);
+       params.push_back(x->type);
+       params.push_back(x->Displayable());
 
        if (!user)
        {
@@ -867,52 +793,17 @@ void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
        }
 }
 
-void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
-{
-       if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
-       {
-               parameterlist params;
-               std::string command;
-               std::string output_text;
-
-               ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
-
-               if (target_type == TYPE_USER)
-               {
-                       User* u = (User*)dest;
-                       params.push_back(u->uuid);
-                       params.push_back(output_text);
-                       command = "MODE";
-               }
-               else
-               {
-                       Channel* c = (Channel*)dest;
-                       params.push_back(c->name);
-                       params.push_back(ConvToStr(c->age));
-                       params.push_back(output_text);
-                       command = "FMODE";
-               }
-
-               Utils->DoOneToMany(user->uuid, command, params);
-       }
-}
-
 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 {
        if (IS_LOCAL(user))
        {
-               if (awaymsg.empty())
-               {
-                       parameterlist params;
-                       Utils->DoOneToMany(user->uuid,"AWAY",params);
-               }
-               else
+               parameterlist params;
+               if (!awaymsg.empty())
                {
-                       parameterlist params;
                        params.push_back(ConvToStr(user->awaytime));
                        params.push_back(":" + awaymsg);
-                       Utils->DoOneToMany(user->uuid,"AWAY",params);
                }
+               Utils->DoOneToMany(user->uuid, "AWAY", params);
        }
 
        return MOD_RES_PASSTHRU;
@@ -930,12 +821,12 @@ void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type
                if (target_type == TYPE_USER)
                {
                        User* u = (User*)target;
-                       s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
+                       s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
                }
                else if (target_type == TYPE_CHANNEL)
                {
                        Channel* c = (Channel*)target;
-                       s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
+                       s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
                }
        }
 }
@@ -946,27 +837,16 @@ void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, con
        User* u = dynamic_cast<User*>(target);
        Channel* c = dynamic_cast<Channel*>(target);
        if (u)
-               s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
+               s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
        else if (c)
-               s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
+               s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+ConvToStr(c->age)+" "+extname+" :"+extdata);
        else if (!target)
-               s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
-}
-
-void ModuleSpanningTree::OnEvent(Event* event)
-{
-       if ((event->GetEventID() == "send_encap") || (event->GetEventID() == "send_metadata") || (event->GetEventID() == "send_topic") || (event->GetEventID() == "send_mode") || (event->GetEventID() == "send_mode_explicit") || (event->GetEventID() == "send_opers")
-               || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
-       {
-               ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
-       }
+               s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 }
 
-bool ModuleSpanningTree::cull()
+CullResult ModuleSpanningTree::cull()
 {
        Utils->cull();
-       ServerInstance->Timers->DelTimer(RefreshTimer);
-       ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
        return this->Module::cull();
 }
 
@@ -978,8 +858,7 @@ ModuleSpanningTree::~ModuleSpanningTree()
        /* This will also free the listeners */
        delete Utils;
 
-       delete command_rconnect;
-       delete command_rsquit;
+       delete commands;
 }
 
 Version ModuleSpanningTree::GetVersion()