-/* +------------------------------------+
- * | 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) 2007-2008, 2012 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * 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/>.
*/
+
#include "inspircd.h"
-#include "commands/cmd_whois.h"
-#include "commands/cmd_stats.h"
-#include "socket.h"
-#include "wildcard.h"
-#include "xline.h"
-#include "transport.h"
-#include "socketengine.h"
-
-#include "m_spanningtree/main.h"
-#include "m_spanningtree/utils.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/link.h"
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/resolvers.h"
-#include "m_spanningtree/handshaketimer.h"
-
-/* $ModDep: 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/handshaketimer.h */
-
-void TreeSocket::WriteLine(std::string line)
-{
- Instance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
- line.append("\r\n");
- this->Write(line);
-}
+#include "main.h"
+#include "utils.h"
+#include "treeserver.h"
+#include "treesocket.h"
+#include "resolvers.h"
/* Handle ERROR command */
-bool TreeSocket::Error(std::deque<std::string> ¶ms)
+void TreeSocket::Error(parameterlist ¶ms)
{
- if (params.size() < 1)
- return false;
- this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
- /* we will return false to cause the socket to close. */
- return false;
+ std::string msg = params.size() ? params[0] : "";
+ SetError("received ERROR " + msg);
}
-void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+void TreeSocket::Split(const std::string& line, std::string& prefix, std::string& command, parameterlist& params)
{
- n.clear();
irc::tokenstream tokens(line);
+
+ if (!tokens.GetToken(prefix))
+ return;
+
+ if (prefix[0] == ':')
+ {
+ prefix = prefix.substr(1);
+
+ if (prefix.empty())
+ {
+ this->SendError("BUG (?) Empty prefix received: " + line);
+ return;
+ }
+ if (!tokens.GetToken(command))
+ {
+ this->SendError("BUG (?) Empty command received: " + line);
+ return;
+ }
+ }
+ else
+ {
+ command = prefix;
+ prefix.clear();
+ }
+ if (command.empty())
+ this->SendError("BUG (?) Empty command received: " + line);
+
std::string param;
while (tokens.GetToken(param))
{
- n.push_back(param);
+ params.push_back(param);
}
- return;
}
-bool TreeSocket::ProcessLine(std::string &line)
+void TreeSocket::ProcessLine(std::string &line)
{
- std::deque<std::string> params;
- irc::string command;
std::string prefix;
+ std::string command;
+ parameterlist params;
- line = line.substr(0, line.find_first_of("\r\n"));
-
- if (line.empty())
- return true;
+ ServerInstance->Logs->Log("m_spanningtree", LOG_RAWIO, "S[%d] I %s", this->GetFd(), line.c_str());
- Instance->Logs->Log("m_spanningtree",DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
+ Split(line, prefix, command, params);
- this->Split(line.c_str(),params);
-
- if (params.empty())
- return true;
-
- if ((params[0][0] == ':') && (params.size() > 1))
- {
- prefix = params[0].substr(1);
- params.pop_front();
-
- if (prefix.empty())
- {
- this->SendError("BUG (?) Empty prefix recieved.");
- return false;
- }
- }
-
- command = params[0].c_str();
- params.pop_front();
+ if (command.empty())
+ return;
switch (this->LinkState)
{
- TreeServer* Node;
-
case WAIT_AUTH_1:
/*
* State WAIT_AUTH_1:
}
else if (command == "SERVER")
{
- return this->Inbound_Server(params);
+ this->Inbound_Server(params);
}
else if (command == "ERROR")
{
- return this->Error(params);
+ this->Error(params);
}
else if (command == "USER")
{
this->SendError("Client connections to this port are prohibited.");
- return false;
}
else if (command == "CAPAB")
{
- return this->Capab(params);
+ this->Capab(params);
}
else
{
- // XXX ...wtf.
- irc::string error = "Invalid command in negotiation phase: " + command;
- this->SendError(assign(error));
- return false;
+ this->SendError("Invalid command in negotiation phase: " + command);
}
break;
case WAIT_AUTH_2:
* Both of these aren't allowable, so block them here. -- w
*/
this->SendError("You may not re-authenticate or commence netburst without sending BURST.");
- return true;
}
else if (command == "BURST")
{
if (params.size())
{
- time_t them = atoi(params[0].c_str());
- time_t delta = them - Instance->Time();
+ time_t them = ConvToInt(params[0]);
+ time_t delta = them - ServerInstance->Time();
if ((delta < -600) || (delta > 600))
{
- Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs((long)delta));
+ ServerInstance->SNO->WriteGlobalSno('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs((long)delta));
SendError("Your clocks are out by "+ConvToStr(abs((long)delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
- return false;
+ return;
}
else if ((delta < -30) || (delta > 30))
{
- Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs((long)delta));
+ ServerInstance->SNO->WriteGlobalSno('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs((long)delta));
}
}
+
+ // Check for duplicate server name/sid again, it's possible that a new
+ // server was introduced while we were waiting for them to send BURST.
+ // (we do not reserve their server name/sid when they send SERVER, we do it now)
+ if (!CheckDuplicate(capab->name, capab->sid))
+ return;
+
this->LinkState = CONNECTED;
- Link* lnk = Utils->FindLink(InboundServerName);
+ Utils->timeoutlist.erase(this);
- Node = new TreeServer(this->Utils, this->Instance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
+ linkID = capab->name;
- if (Node->DuplicateID())
- {
- this->SendError("Server ID "+InboundSID+" already exists on the network!");
- this->Instance->SNO->WriteToSnoMask('l',"Server \2"+InboundServerName+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link.");
- return false;
- }
+ MyRoot = new TreeServer(Utils, capab->name, capab->description, capab->sid, Utils->TreeRoot, this, capab->hidden);
+ Utils->TreeRoot->AddChild(MyRoot);
+
+ MyRoot->bursting = true;
+ this->DoBurst(MyRoot);
- Utils->TreeRoot->AddChild(Node);
- params.clear();
- params.push_back(InboundServerName);
- params.push_back("*");
- params.push_back("1");
- params.push_back(InboundSID);
- params.push_back(":"+InboundDescription);
- Utils->DoOneToAllButSender(Instance->Config->GetSID(),"SERVER",params,InboundServerName);
- Node->bursting = true;
- this->DoBurst(Node);
+ parameterlist sparams;
+ sparams.push_back(MyRoot->GetName());
+ sparams.push_back("*");
+ sparams.push_back("0");
+ sparams.push_back(MyRoot->GetID());
+ sparams.push_back(":" + MyRoot->GetDesc());
+ Utils->DoOneToAllButSender(ServerInstance->Config->GetSID(), "SERVER", sparams, MyRoot->GetName());
+ Utils->DoOneToAllButSender(MyRoot->GetID(), "BURST", params, MyRoot->GetName());
}
else if (command == "ERROR")
{
- return this->Error(params);
+ this->Error(params);
}
else if (command == "CAPAB")
{
- return this->Capab(params);
+ this->Capab(params);
}
break;
- case LISTENER:
- /*
- * This really shouldn't happen.
- */
- this->SendError("Internal error -- listening socket accepted its own descriptor!!!");
- return false;
- break;
case CONNECTING:
/*
* State CONNECTING:
if (command == "SERVER")
{
// Our credentials have been accepted, send netburst. (this puts US into the CONNECTED state)
- return this->Outbound_Reply_Server(params);
+ this->Outbound_Reply_Server(params);
}
else if (command == "ERROR")
{
- return this->Error(params);
+ this->Error(params);
}
else if (command == "CAPAB")
{
- return this->Capab(params);
+ this->Capab(params);
}
break;
case CONNECTED:
/*
- * State CONNECTED:
+ * State CONNECTED:
* Credentials have been exchanged, we've gotten their 'BURST' (or sent ours).
* Anything from here on should be accepted a little more reasonably.
*/
- if (!prefix.empty())
- {
- /*
- * Check for fake direction here, and drop any instances that are found.
- * What is fake direction? Imagine the following server setup:
- * 0AA <-> 0AB <-> 0AC
- * Fake direction would be 0AC sending a message to 0AB claiming to be from
- * 0AA, or something similar. Basically, a message taking a path that *cannot*
- * be correct.
- *
- * When would this be seen?
- * Well, hopefully never. It could be caused by race conditions, bugs, or
- * "miscreant" servers, though, so let's check anyway. -- w
- */
- std::string direction = prefix;
-
- User *t = this->Instance->FindUUID(prefix);
- if (t)
- {
- direction = t->server;
- }
-
- TreeServer* route_back_again = Utils->BestRouteTo(direction);
- if ((!route_back_again) || (route_back_again->GetSocket() != this))
- {
- if (route_back_again)
- Instance->Logs->Log("m_spanningtree",DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
- return true;
- }
- /* Fix by brain:
- * When there is activity on the socket, reset the ping counter so
- * that we're not wasting bandwidth pinging an active server.
- */
- route_back_again->SetNextPingTime(Instance->Time() + Utils->PingFreq);
- route_back_again->SetPingFlag();
- }
- else
- {
- /*
- * Empty prefix from a server to server link:
- * This is somewhat bad/naughty, so let's set the prefix
- * to be the link that we got it from, so we don't break anything. -- w
- */
- TreeServer* n = Utils->FindServer(GetName());
- if (n)
- prefix = n->GetID();
- else
- prefix = GetName();
- }
-
- /*
- * First up, check for any malformed commands (e.g. MODE without a timestamp)
- * and rewrite commands where necessary (SVSMODE -> MODE for services). -- w
- */
- if (command == "SVSMODE") // This isn't in an "else if" so we still force FMODE for changes on channels.
- command = "MODE";
+ this->ProcessConnectedLine(prefix, command, params);
+ break;
+ case DYING:
+ break;
+ }
+}
- if (command == "MODE")
- {
- if (params.size() >= 2)
- {
- Channel* channel = Instance->FindChan(params[0]);
- if (channel)
- {
- this->SendError("MODE may no longer be used on channels. Please use FMODE, with correct timestamp rules.");
- return false;
- }
- }
- }
+void TreeSocket::ProcessConnectedLine(std::string& prefix, std::string& command, parameterlist& params)
+{
+ User* who = ServerInstance->FindUUID(prefix);
+ std::string direction;
+ if (!who)
+ {
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (prefix.empty())
+ ServerSource = MyRoot;
- /*
- * Now, check for (and parse) commands as appropriate. -- w
+ if (ServerSource)
+ {
+ who = ServerSource->ServerUser;
+ }
+ else
+ {
+ /* It is important that we don't close the link here, unknown prefix can occur
+ * due to various race conditions such as the KILL message for a user somehow
+ * crossing the users QUIT further upstream from the server. Thanks jilles!
*/
- /* Find the server that this command originated from, used in the handlers below */
- TreeServer *ServerSource = Utils->FindServer(prefix);
-
- /* Find the link we just got this from so we don't bounce it back incorrectly */
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
+ if ((prefix.length() == UIDGenerator::UUID_LENGTH) && (isdigit(prefix[0])) &&
+ ((command == "FMODE") || (command == "MODE") || (command == "KICK") || (command == "TOPIC") || (command == "KILL") || (command == "ADDLINE") || (command == "DELLINE")))
{
- sourceserv = this->InboundServerName;
- }
+ /* Special case, we cannot drop these commands as they've been committed already on a
+ * part of the network by the time we receive them, so in this scenario pretend the
+ * command came from a server to avoid desync.
+ */
- /*
- * XXX one of these days, this needs to be moved into class Commands.
- */
- if (command == "UID")
- {
- return this->ParseUID(prefix, params);
- }
- else if (command == "FJOIN")
- {
- return this->ForceJoin(prefix,params);
- }
- else if ((command == "NOTICE" || command == "PRIVMSG") && (Utils->IsServer(prefix)))
- {
- return this->ServerMessage(assign(command), prefix, params, sourceserv);
- }
- else if (command == "STATS")
- {
- return this->Stats(prefix, params);
- }
- else if (command == "MOTD")
- {
- return this->Motd(prefix, params);
- }
- else if (command == "KILL" && ServerSource)
- {
- // Kill from a server
- return this->RemoteKill(prefix,params);
- }
- else if (command == "MODULES")
- {
- return this->Modules(prefix, params);
- }
- else if (command == "ADMIN")
- {
- return this->Admin(prefix, params);
- }
- else if (command == "MAP")
- {
- User* user = Instance->FindNick(prefix);
- if (user)
- {
- std::vector<std::string> p(params.begin(), params.end());
- return Utils->Creator->HandleMap(p, user);
- }
- }
- else if (command == "SERVER")
- {
- return this->RemoteServer(prefix,params);
- }
- else if (command == "ERROR")
- {
- return this->Error(params);
- }
- else if (command == "OPERTYPE")
- {
- return this->OperType(prefix,params);
- }
- else if (command == "FMODE")
- {
- return this->ForceMode(prefix,params);
- }
- else if (command == "FTOPIC")
- {
- return this->ForceTopic(prefix,params);
- }
- else if (command == "METADATA")
- {
- return this->MetaData(prefix,params);
- }
- else if (command == "PING")
- {
- return this->LocalPing(prefix,params);
- }
- else if (command == "PONG")
- {
- return this->LocalPong(prefix,params);
- }
- else if (command == "VERSION")
- {
- return this->ServerVersion(prefix,params);
- }
- else if (command == "FHOST")
- {
- return this->ChangeHost(prefix,params);
- }
- else if (command == "FNAME")
- {
- return this->ChangeName(prefix,params);
- }
- else if (command == "ADDLINE")
- {
- return this->AddLine(prefix,params);
- }
- else if (command == "DELLINE")
- {
- return this->DelLine(prefix,params);
- }
- else if (command == "SVSNICK")
- {
- return this->ForceNick(prefix,params);
- }
- else if (command == "OPERQUIT")
- {
- return this->OperQuit(prefix,params);
- }
- else if (command == "IDLE")
- {
- return this->Whois(prefix,params);
- }
- else if (command == "PUSH")
- {
- return this->Push(prefix,params);
+ who = ServerInstance->FindUUID(prefix.substr(0, 3));
+ if (!who)
+ who = this->MyRoot->ServerUser;
}
- else if (command == "TIME")
+ else
{
- return this->Time(prefix,params);
+ ServerInstance->Logs->Log("m_spanningtree", LOG_DEBUG, "Command '%s' from unknown prefix '%s'! Dropping entire command.",
+ command.c_str(), prefix.c_str());
+ return;
}
- else if ((command == "KICK") && (Utils->IsServer(prefix)))
- {
- if (params.size() == 3)
- {
- TreeServer* pf = Utils->FindServer(prefix);
- User* user = this->Instance->FindNick(params[1]);
- Channel* chan = this->Instance->FindChan(params[0]);
- if (pf && user && chan)
- {
- if (!chan->ServerKickUser(user, params[2].c_str(), false, pf->GetName().c_str()))
- /* Yikes, the channels gone! */
- delete chan;
- }
- }
+ }
+ }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- else if (command == "SVSJOIN")
- {
- return this->ServiceJoin(prefix,params);
- }
- else if (command == "SVSPART")
- {
- return this->ServicePart(prefix,params);
- }
- else if (command == "SQUIT")
- {
- if (params.size() == 2)
- {
- this->Squit(Utils->FindServer(params[0]),params[1]);
- }
- return true;
- }
- else if (command == "MODENOTICE")
- {
- if (params.size() >= 2)
- {
- if (ServerSource)
- Instance->Users->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()), params[1].c_str());
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "SNONOTICE")
- {
- if (params.size() >= 2)
- {
- Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": "+ params[1]);
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
+ // Make sure prefix is still good
+ direction = who->server;
+ prefix = who->uuid;
+
+ /*
+ * Check for fake direction here, and drop any instances that are found.
+ * What is fake direction? Imagine the following server setup:
+ * 0AA <-> 0AB <-> 0AC
+ * Fake direction would be 0AC sending a message to 0AB claiming to be from
+ * 0AA, or something similar. Basically, a message taking a path that *cannot*
+ * be correct.
+ *
+ * When would this be seen?
+ * Well, hopefully never. It could be caused by race conditions, bugs, or
+ * "miscreant" servers, though, so let's check anyway. -- w
+ *
+ * We also check here for totally invalid prefixes (prefixes that are neither
+ * a valid SID or a valid UUID, so that invalid UUID or SID never makes it
+ * to the higher level functions. -- B
+ */
+ TreeServer* route_back_again = Utils->BestRouteTo(direction);
+ if ((!route_back_again) || (route_back_again->GetSocket() != this))
+ {
+ if (route_back_again)
+ ServerInstance->Logs->Log("m_spanningtree",LOG_DEBUG,"Protocol violation: Fake direction '%s' from connection '%s'",
+ prefix.c_str(),linkID.c_str());
+ return;
+ }
- }
- else if (command == "BURST")
- {
- // Set prefix server as bursting
- if (!ServerSource)
- {
- this->Instance->SNO->WriteToSnoMask('l', "WTF: Got BURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
- return false;
- }
+ /*
+ * First up, check for any malformed commands (e.g. MODE without a timestamp)
+ * and rewrite commands where necessary (SVSMODE -> MODE for services). -- w
+ */
+ if (command == "SVSMODE") // This isn't in an "else if" so we still force FMODE for changes on channels.
+ command = "MODE";
- ServerSource->bursting = true;
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "ENDBURST")
- {
- if (!ServerSource)
- {
- this->Instance->SNO->WriteToSnoMask('l', "WTF: Got ENDBURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
- return false;
- }
+ if (proto_version < ProtocolVersion)
+ {
+ if (!PreProcessOldProtocolMessage(who, command, params))
+ return;
+ }
- ServerSource->FinishBurst();
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "ENCAP")
- {
- return this->Encap(prefix, params);
- }
- else if (command == "MODE")
- {
- // Server-prefix MODE.
- std::vector<std::string> modelist(params.begin(), params.end());
+ // TODO move all this into Commands
+ if (command == "MAP")
+ {
+ Utils->Creator->HandleMap(params, who);
+ }
+ else if (command == "SERVER")
+ {
+ this->RemoteServer(prefix,params);
+ }
+ else if (command == "ERROR")
+ {
+ this->Error(params);
+ }
+ else if (command == "AWAY")
+ {
+ this->Away(prefix,params);
+ }
+ else if (command == "PING")
+ {
+ this->LocalPing(prefix,params);
+ }
+ else if (command == "PONG")
+ {
+ TreeServer *s = Utils->FindServer(prefix);
+ if (s && s->bursting)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l',"Server \002%s\002 has not finished burst, forcing end of burst (send ENDBURST!)", prefix.c_str());
+ s->FinishBurst();
+ }
+ this->LocalPong(prefix,params);
+ }
+ else if (command == "VERSION")
+ {
+ this->ServerVersion(prefix,params);
+ }
+ else if (command == "ADDLINE")
+ {
+ this->AddLine(prefix,params);
+ }
+ else if (command == "DELLINE")
+ {
+ this->DelLine(prefix,params);
+ }
+ else if (command == "SAVE")
+ {
+ this->ForceNick(prefix,params);
+ }
+ else if (command == "OPERQUIT")
+ {
+ this->OperQuit(prefix,params);
+ }
+ else if (command == "IDLE")
+ {
+ this->Whois(prefix,params);
+ }
+ else if (command == "PUSH")
+ {
+ this->Push(prefix,params);
+ }
+ else if (command == "SQUIT")
+ {
+ if (params.size() == 2)
+ {
+ this->Squit(Utils->FindServer(params[0]),params[1]);
+ }
+ }
+ else if (command == "SNONOTICE")
+ {
+ if (params.size() >= 2)
+ {
+ ServerInstance->SNO->WriteToSnoMask(params[0][0], "From " + who->nick + ": "+ params[1]);
+ params[1] = ":" + params[1];
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ }
+ else if (command == "BURST")
+ {
+ // Set prefix server as bursting
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (!ServerSource)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l', "WTF: Got BURST from a non-server(?): %s", prefix.c_str());
+ return;
+ }
- /* We don't support this for channel mode changes any more! */
- if (params.size() >= 1)
- {
- if (Instance->FindChan(params[0]))
- {
- this->SendError("Protocol violation by '"+(ServerSource ? ServerSource->GetName().c_str() : prefix)+"'! MODE for channel mode changes is not supported by the InspIRCd 1.2 protocol. You must use FMODE to preserve channel timestamps.");
- return false;
- }
- }
+ ServerSource->bursting = true;
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ else if (command == "ENDBURST")
+ {
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (!ServerSource)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l', "WTF: Got ENDBURST from a non-server(?): %s", prefix.c_str());
+ return;
+ }
+
+ ServerSource->FinishBurst();
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ else if (command == "ENCAP")
+ {
+ this->Encap(who, params);
+ }
+ else if (command == "NICK")
+ {
+ if (params.size() != 2)
+ {
+ SendError("Protocol violation: Wrong number of parameters for NICK message");
+ return;
+ }
- // Insert into the parser
- this->Instance->SendMode(modelist, this->Instance->FakeClient);
+ if (IS_SERVER(who))
+ {
+ SendError("Protocol violation: Server changing nick");
+ return;
+ }
- // Pass out to the network
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- else
+ if ((isdigit(params[0][0])) && (params[0] != who->uuid))
+ {
+ SendError("Protocol violation: User changing nick to an invalid UID - " + params[0]);
+ return;
+ }
+
+ /* Update timestamp on user when they change nicks */
+ who->age = ConvToInt(params[1]);
+
+ /*
+ * On nick messages, check that the nick doesnt already exist here.
+ * If it does, perform collision logic.
+ */
+ User* x = ServerInstance->FindNickOnly(params[0]);
+ if ((x) && (x != who))
+ {
+ int collideret = 0;
+ /* x is local, who is remote */
+ collideret = this->DoCollision(x, who->age, who->ident, who->GetIPString(), who->uuid);
+ if (collideret != 1)
{
/*
- * Not a special s2s command. Emulate the user doing it.
- * This saves us having a huge ugly command parser again.
+ * Remote client lost, or both lost, parsing or passing on this
+ * nickchange would be pointless, as the incoming client's server will
+ * soon recieve SVSNICK to change its nick to its UID. :) -- w00t
*/
- User *who = this->Instance->FindUUID(prefix);
-
- if (!who)
- {
- // this looks ugly because command is an irc::string
- this->SendError("Command (" + std::string(command.c_str()) + ") from unknown prefix (" + prefix + ")! Dropping link.");
- return false;
- }
-
- if (command == "NICK")
- {
- if (params.size() != 2)
- {
- SendError("Protocol violation: NICK message without TS - :"+std::string(who->uuid)+" NICK "+params[0]);
- return false;
- }
- /* Update timestamp on user when they change nicks */
- who->age = atoi(params[1].c_str());
-
- /*
- * On nick messages, check that the nick doesnt already exist here.
- * If it does, perform collision logic.
- */
- User* x = this->Instance->FindNickOnly(params[0]);
- if ((x) && (x != who))
- {
- int collideret = 0;
- /* x is local, who is remote */
- collideret = this->DoCollision(x, who->age, who->ident, who->GetIPString(), who->uuid);
- if (collideret != 1)
- {
- /*
- * Remote client lost, or both lost, parsing this nickchange would be
- * pointless, as the incoming client's server will soon recieve SVSNICK to
- * change its nick to its UID. :) -- w00t
- */
- return true;
- }
- }
- }
+ return;
+ }
+ }
+ who->ForceNickChange(params[0].c_str());
+ Utils->RouteCommand(route_back_again, command, params, who);
+ }
+ else
+ {
+ Command* cmd = ServerInstance->Parser->GetHandler(command);
- // its a user
- std::vector<std::string> strparams(params.begin(), params.end());
+ if (!cmd)
+ {
+ irc::stringjoiner pmlist(" ", params, 0, params.size() - 1);
+ ServerInstance->Logs->Log("m_spanningtree", LOG_SPARSE, "Unrecognised S2S command :%s %s %s",
+ who->uuid.c_str(), command.c_str(), pmlist.GetJoined().c_str());
+ SendError("Unrecognised command '" + command + "' -- possibly loaded mismatched modules");
+ return;
+ }
- switch (this->Instance->CallCommandHandler(command.c_str(), strparams, who))
- {
- case CMD_INVALID:
- /*
- * XXX: command is irc::string, hence ugliness
- */
- this->SendError("Unrecognised or malformed command '" + std::string(command.c_str()) + "' -- possibly loaded mismatched modules");
- return false;
- break;
- case CMD_FAILURE:
- /*
- * CMD_LOCALONLY is aliased to CMD_FAILURE, so this won't go out onto the network.
- */
- return true;
- break;
- default:
- /* CMD_SUCCESS falls through here */
- break;
- }
+ if (params.size() < cmd->min_params)
+ {
+ irc::stringjoiner pmlist(" ", params, 0, params.size() - 1);
+ ServerInstance->Logs->Log("m_spanningtree", LOG_SPARSE, "Insufficient parameters for S2S command :%s %s %s",
+ who->uuid.c_str(), command.c_str(), pmlist.GetJoined().c_str());
+ SendError("Insufficient parameters for command '" + command + "'");
+ return;
+ }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ if ((!params.empty()) && (params.back().empty()) && (!cmd->allow_empty_last_param))
+ {
+ // the last param is empty and the command handler doesn't allow that, check if there will be enough params if we drop the last
+ if (params.size()-1 < cmd->min_params)
+ return;
+ params.pop_back();
+ }
- }
- return true;
- break; // end of state CONNECTED (phew).
- }
- return true;
-}
+ CmdResult res = cmd->Handle(params, who);
-std::string TreeSocket::GetName()
-{
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- {
- sourceserv = this->InboundServerName;
+ if (res == CMD_INVALID)
+ {
+ irc::stringjoiner pmlist(" ", params, 0, params.size() - 1);
+ ServerInstance->Logs->Log("m_spanningtree", LOG_SPARSE, "Error handling S2S command :%s %s %s",
+ who->uuid.c_str(), command.c_str(), pmlist.GetJoined().c_str());
+ SendError("Error handling '" + command + "' -- possibly loaded mismatched modules");
+ }
+ else if (res == CMD_SUCCESS)
+ Utils->RouteCommand(route_back_again, command, params, who);
}
- return sourceserv;
}
void TreeSocket::OnTimeout()
{
- if (this->LinkState == CONNECTING)
- {
- Utils->Creator->RemoteMessage(NULL, "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
- Link* MyLink = Utils->FindLink(myhost);
- if (MyLink)
- Utils->DoFailOver(MyLink);
- }
+ ServerInstance->SNO->WriteGlobalSno('l', "CONNECT: Connection to \002%s\002 timed out.", linkID.c_str());
}
-void TreeSocket::OnClose()
+void TreeSocket::Close()
{
- // Test fix for big fuckup
- if (this->LinkState != CONNECTED)
- return;
+ if (fd != -1)
+ ServerInstance->GlobalCulls.AddItem(this);
+ this->BufferedSocket::Close();
+ SetError("Remote host closed connection");
// Connection closed.
// If the connection is fully up (state CONNECTED)
// then propogate a netsplit to all peers.
- std::string quitserver = this->myhost;
- if (!this->InboundServerName.empty())
- {
- quitserver = this->InboundServerName;
- }
- TreeServer* s = Utils->FindServer(quitserver);
- if (s)
- {
- Squit(s,"Remote host closed the connection");
- }
-
- if (!quitserver.empty())
- {
- Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' failed.",quitserver.c_str());
- time_t server_uptime = Instance->Time() - this->age;
- if (server_uptime)
- Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());
- }
-}
-
-int TreeSocket::OnIncomingConnection(int newsock, char* ip)
-{
- bool found = false;
+ if (MyRoot)
+ Squit(MyRoot,getError());
- found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
- if (!found)
+ if (!ConnectionFailureShown)
{
- for (std::vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
- {
- if (*i == "*" || irc::sockets::MatchCIDR(ip, *i))
- {
- found = true;
- break;
- }
- }
+ ConnectionFailureShown = true;
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\2%s\2' failed.",linkID.c_str());
- if (!found)
+ time_t server_uptime = ServerInstance->Time() - this->age;
+ if (server_uptime)
{
- Utils->Creator->RemoteMessage(NULL,"Server connection from %s denied (no link blocks with that IP address)", ip);
- Instance->SE->Close(newsock);
- return false;
+ std::string timestr = Utils->Creator->TimeToStr(server_uptime);
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\2%s\2' was established for %s", linkID.c_str(), timestr.c_str());
}
}
-
- TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
- s = s; /* Whinge whinge whinge, thats all GCC ever does. */
- return true;
}
projects / user / henk / code / inspircd.git / blobdiff