]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/treesocket2.cpp
Replace std::deque with std::vector in spanningtree and related modules
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / treesocket2.cpp
index c2664a65e6b209298906b145ed2fe1c9e80cd542..bc9388c94956287c8a6f94e7716be03525d0bb6f 100644 (file)
@@ -2,8 +2,8 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
 #include "commands/cmd_stats.h"
 #include "socket.h"
 #include "xline.h"
-#include "transport.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"
+#include "main.h"
+#include "utils.h"
+#include "treeserver.h"
+#include "link.h"
+#include "treesocket.h"
+#include "resolvers.h"
+#include "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());
+       ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
        line.append("\r\n");
        this->Write(line);
 }
 
 
 /* Handle ERROR command */
-bool TreeSocket::Error(std::deque<std::string> &params)
+bool TreeSocket::Error(parameterlist &params)
 {
        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());
+       this->ServerInstance->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;
 }
 
-void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+void TreeSocket::Split(const std::string &line, parameterlist &n)
 {
        n.clear();
        irc::tokenstream tokens(line);
@@ -61,7 +61,7 @@ void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
 
 bool TreeSocket::ProcessLine(std::string &line)
 {
-       std::deque<std::string> params;
+       parameterlist params;
        irc::string command;
        std::string prefix;
 
@@ -70,7 +70,7 @@ bool TreeSocket::ProcessLine(std::string &line)
        if (line.empty())
                return true;
 
-       Instance->Logs->Log("m_spanningtree",DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
+       ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
 
        this->Split(line.c_str(),params);
 
@@ -80,17 +80,20 @@ bool TreeSocket::ProcessLine(std::string &line)
        if ((params[0][0] == ':') && (params.size() > 1))
        {
                prefix = params[0].substr(1);
-               params.pop_front();
 
                if (prefix.empty())
                {
-                       this->SendError("BUG (?) Empty prefix recieved.");
+                       this->SendError("BUG (?) Empty prefix recieved: " + line);
                        return false;
                }
+               command = params[1].c_str();
+               params.erase(params.begin(), params.begin() + 2);
+       }
+       else
+       {
+               command = params[0].c_str();
+               params.erase(params.begin());
        }
-
-       command = params[0].c_str();
-       params.pop_front();
 
        switch (this->LinkState)
        {
@@ -160,38 +163,35 @@ bool TreeSocket::ProcessLine(std::string &line)
                                if (params.size())
                                {
                                        time_t them = atoi(params[0].c_str());
-                                       time_t delta = them - Instance->Time();
+                                       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->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));
                                                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;
                                        }
                                        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->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs((long)delta));
                                        }
                                }
                                this->LinkState = CONNECTED;
-                               Link* lnk = Utils->FindLink(InboundServerName);
 
-                               Node = new TreeServer(this->Utils, this->Instance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
+                               Utils->timeoutlist.erase(this);
 
-                               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;
-                               }
+                               Link* lnk = Utils->FindLink(InboundServerName);
+
+                               Node = new TreeServer(this->Utils, this->ServerInstance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
 
                                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);
+                               parameterlist sparams;
+                               sparams.push_back(InboundServerName);
+                               sparams.push_back("*");
+                               sparams.push_back("1");
+                               sparams.push_back(InboundSID);
+                               sparams.push_back(":"+InboundDescription);
+                               Utils->DoOneToAllButSender(ServerInstance->Config->GetSID(),"SERVER",sparams,InboundServerName);
+                               Utils->DoOneToAllButSenderRaw(line, InboundServerName, prefix, command, params);
                                Node->bursting = true;
                                this->DoBurst(Node);
                        }
@@ -245,28 +245,33 @@ bool TreeSocket::ProcessLine(std::string &line)
                                 * 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
                                 */
                                std::string direction = prefix;
 
-                               User *t = this->Instance->FindUUID(prefix);
+                               User *t = this->ServerInstance->FindUUID(prefix);
                                if (t)
                                {
+                                       /* Find UID */
                                        direction = t->server;
                                }
+                               else if (!this->Utils->FindServer(direction))
+                               {
+                                       /* Find SID */
+                                       ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"Protocol violation: Invalid prefix '%s' from connection '%s'", direction.c_str(), this->GetName().c_str());
+                                       return true;
+                               }
 
                                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());
+                                               ServerInstance->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
                        {
@@ -295,6 +300,11 @@ bool TreeSocket::ProcessLine(std::string &line)
 
                        /* Find the server that this command originated from, used in the handlers below */
                        TreeServer *ServerSource = Utils->FindServer(prefix);
+                       if (ServerSource)
+                       {
+                               Utils->ServerUser->SetFakeServer(ServerSource->GetName());
+                               Utils->ServerUser->uuid = ServerSource->GetID();
+                       }
 
                        /* Find the link we just got this from so we don't bounce it back incorrectly */
                        std::string sourceserv = this->myhost;
@@ -341,7 +351,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                        }
                        else if (command == "MAP")
                        {
-                               User* user = Instance->FindNick(prefix);
+                               User* user = ServerInstance->FindNick(prefix);
                                if (user)
                                {
                                        std::vector<std::string> p(params.begin(), params.end());
@@ -381,7 +391,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                                TreeServer *s = Utils->FindServer(prefix);
                                if (s && s->bursting)
                                {
-                                       Instance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst (send ENDBURST!)", prefix.c_str());
+                                       ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst (send ENDBURST!)", prefix.c_str());
                                        s->FinishBurst();
                                }
                                return this->LocalPong(prefix,params);
@@ -426,23 +436,6 @@ bool TreeSocket::ProcessLine(std::string &line)
                        {
                                return this->Time(prefix,params);
                        }
-                       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);
@@ -464,7 +457,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                                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());
+                                               ServerInstance->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);
                        }
@@ -472,7 +465,18 @@ bool TreeSocket::ProcessLine(std::string &line)
                        {
                                if (params.size() >= 2)
                                {
-                                       Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": "+ params[1]);
+                                       std::string oldprefix;
+                                       if (!ServerSource)
+                                       {
+                                               oldprefix = prefix;
+                                               User *u = ServerInstance->FindNick(prefix);
+                                               if (!u)
+                                                       return true;
+                                               prefix = u->nick;
+                                       }
+
+                                       ServerInstance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": "+ params[1]);
+                                       prefix = oldprefix;
                                        return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
                                }
 
@@ -482,7 +486,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                                // 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()));
+                                       this->ServerInstance->SNO->WriteToSnoMask('l', "WTF: Got BURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
                                        return false;
                                }
 
@@ -493,7 +497,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                        {
                                if (!ServerSource)
                                {
-                                       this->Instance->SNO->WriteToSnoMask('l', "WTF: Got ENDBURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
+                                       this->ServerInstance->SNO->WriteToSnoMask('l', "WTF: Got ENDBURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
                                        return false;
                                }
 
@@ -504,40 +508,27 @@ bool TreeSocket::ProcessLine(std::string &line)
                        {
                                return this->Encap(prefix, params);
                        }
-                       else if (command == "MODE" && !this->Instance->FindUUID(prefix)) // XXX we should check for no such serv?
-                       {
-                               // Server-prefix MODE.
-                               std::vector<std::string> modelist(params.begin(), params.end());
-
-                               /* 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;
-                                       }
-                               }
-
-                               // Insert into the parser
-                               this->Instance->SendMode(modelist, this->Instance->FakeClient);
-
-                               // Pass out to the network
-                               return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
-                       }
                        else
                        {
                                /*
                                 * Not a special s2s command. Emulate the user doing it.
                                 * This saves us having a huge ugly command parser again.
                                 */
-                               User *who = this->Instance->FindUUID(prefix);
+                               User* who = this->ServerInstance->FindUUID(prefix);
 
-                               if (!who)
+                               if (ServerSource)
                                {
-                                       // 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;
+                                       who = Utils->ServerUser;
+                               }
+                               else if (!who)
+                               {
+                                       /* this looks ugly because command is an irc::string
+                                        * It is important that we dont 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!
+                                        */
+                                       ServerInstance->Logs->Log("m_spanningtree", DEBUG, "Command " + std::string(command.c_str()) + " from unknown prefix " + prefix + "! Dropping entire command.");
+                                       return true;
                                }
 
                                if (command == "NICK")
@@ -554,7 +545,7 @@ bool TreeSocket::ProcessLine(std::string &line)
                                         * On nick messages, check that the nick doesnt already exist here.
                                         * If it does, perform collision logic.
                                         */
-                                       User* x = this->Instance->FindNickOnly(params[0]);
+                                       User* x = this->ServerInstance->FindNickOnly(params[0]);
                                        if ((x) && (x != who))
                                        {
                                                int collideret = 0;
@@ -563,19 +554,19 @@ bool TreeSocket::ProcessLine(std::string &line)
                                                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
+                                                        * 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
                                                         */
                                                        return true;
                                                }
                                        }
                                }
 
-                               // its a user
+                               // it's a user
                                std::vector<std::string> strparams(params.begin(), params.end());
 
-                               switch (this->Instance->CallCommandHandler(command.c_str(), strparams, who))
+                               switch (this->ServerInstance->CallCommandHandler(command.c_str(), strparams, who))
                                {
                                        case CMD_INVALID:
                                                /*
@@ -618,7 +609,7 @@ void TreeSocket::OnTimeout()
 {
        if (this->LinkState == CONNECTING)
        {
-               Utils->Creator->RemoteMessage(NULL, "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
+               this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
                Link* MyLink = Utils->FindLink(myhost);
                if (MyLink)
                        Utils->DoFailOver(MyLink);
@@ -647,11 +638,10 @@ void TreeSocket::OnClose()
 
        if (!quitserver.empty())
        {
-               Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' failed.",quitserver.c_str());
-               time_t server_uptime = Instance->Time() - this->age;
+               this->ServerInstance->SNO->WriteToSnoMask('l', "Connection to '\2%s\2' failed.",quitserver.c_str());
+
+               time_t server_uptime = ServerInstance->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());
+                               this->ServerInstance->SNO->WriteToSnoMask('l', "Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());
        }
 }
-
-