-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#ifndef __TREESOCKET_H__\r#define __TREESOCKET_H__\r\r#include "configreader.h"\r#include "users.h"\r#include "channels.h"\r#include "modules.h"\r#include "commands/cmd_whois.h"\r#include "commands/cmd_stats.h"\r#include "socket.h"\r#include "inspircd.h"\r#include "wildcard.h"\r#include "xline.h"\r#include "transport.h"\r\r#include "m_spanningtree/utils.h"\r\r/*\r * The server list in InspIRCd is maintained as two structures\r * which hold the data in different ways. Most of the time, we\r * want to very quicky obtain three pieces of information:\r *\r * (1) The information on a server\r * (2) The information on the server we must send data through\r * to actually REACH the server we're after\r * (3) Potentially, the child/parent objects of this server\r *\r * The InspIRCd spanning protocol provides easy access to these\r * by storing the data firstly in a recursive structure, where\r * each item references its parent item, and a dynamic list\r * of child items, and another structure which stores the items\r * hashed, linearly. This means that if we want to find a server\r * by name quickly, we can look it up in the hash, avoiding\r * any O(n) lookups. If however, during a split or sync, we want\r * to apply an operation to a server, and any of its child objects\r * we can resort to recursion to walk the tree structure.\r * Any socket can have one of five states at any one time.\r * The LISTENER state indicates a socket which is listening\r * for connections. It cannot receive data itself, only incoming\r * sockets.\r * The CONNECTING state indicates an outbound socket which is\r * waiting to be writeable.\r * The WAIT_AUTH_1 state indicates the socket is outbound and\r * has successfully connected, but has not yet sent and received\r * SERVER strings.\r * The WAIT_AUTH_2 state indicates that the socket is inbound\r * (allocated by a LISTENER) but has not yet sent and received\r * SERVER strings.\r * The CONNECTED state represents a fully authorized, fully\r * connected server.\r */\renum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };\r\r/** Every SERVER connection inbound or outbound is represented by\r * an object of type TreeSocket.\r * TreeSockets, being inherited from InspSocket, can be tied into\r * the core socket engine, and we cn therefore receive activity events\r * for them, just like activex objects on speed. (yes really, that\r * is a technical term!) Each of these which relates to a locally\r * connected server is assocated with it, by hooking it onto a\r * TreeSocket class using its constructor. In this way, we can\r * maintain a list of servers, some of which are directly connected,\r * some of which are not.\r */\rclass TreeSocket : public InspSocket\r{\r SpanningTreeUtilities* Utils; /* Utility class */\r std::string myhost; /* Canonical hostname */\r std::string in_buffer; /* Input buffer */\r ServerState LinkState; /* Link state */\r std::string InboundServerName; /* Server name sent to us by other side */\r std::string InboundDescription; /* Server description (GECOS) sent to us by the other side */\r int num_lost_users; /* Users lost in split */\r int num_lost_servers; /* Servers lost in split */\r time_t NextPing; /* Time when we are due to ping this server */\r bool LastPingWasGood; /* Responded to last ping we sent? */\r bool bursting; /* True if not finished bursting yet */\r unsigned int keylength; /* Is this still used? */\r std::string ModuleList; /* Module list of other server from CAPAB */\r std::map<std::string,std::string> CapKeys; /* CAPAB keys from other server */\r Module* Hook; /* I/O hooking module that we're attached to for this socket */\r std::string ourchallenge; /* Challenge sent for challenge/response */\r std::string theirchallenge; /* Challenge recv for challenge/response */\r std::string OutboundPass; /* Outbound password */\r bool sentcapab; /* Have sent CAPAB already */\r public:\r\r /** Because most of the I/O gubbins are encapsulated within\r * InspSocket, we just call the superclass constructor for\r * most of the action, and append a few of our own values\r * to it.\r */\r TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod = NULL);\r\r /** Because most of the I/O gubbins are encapsulated within\r * InspSocket, we just call the superclass constructor for\r * most of the action, and append a few of our own values\r * to it.\r */\r TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Module* HookMod = NULL);\r\r /** When a listening socket gives us a new file descriptor,\r * we must associate it with a socket without creating a new\r * connection. This constructor is used for this purpose.\r */\r TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod = NULL);\r\r /** Get link state\r */\r ServerState GetLinkState();\r\r /** Get challenge set in our CAPAB for challenge/response\r */\r const std::string& GetOurChallenge();\r\r /** Get challenge set in our CAPAB for challenge/response\r */\r void SetOurChallenge(const std::string &c);\r\r /** Get challenge set in their CAPAB for challenge/response\r */\r const std::string& GetTheirChallenge();\r\r /** Get challenge set in their CAPAB for challenge/response\r */\r void SetTheirChallenge(const std::string &c);\r\r /** Compare two passwords based on authentication scheme\r */\r bool ComparePass(const std::string &ours, const std::string &theirs);\r\r /** Return the module which we are hooking to for I/O encapsulation\r */\r Module* GetHook();\r\r /** Destructor\r */\r ~TreeSocket();\r\r /** Generate random string used for challenge-response auth\r */\r std::string RandString(unsigned int length);\r\r /** Construct a password, optionally hashed with the other side's\r * challenge string\r */\r std::string MakePass(const std::string &password, const std::string &challenge);\r\r /** When an outbound connection finishes connecting, we receive\r * this event, and must send our SERVER string to the other\r * side. If the other side is happy, as outlined in the server\r * to server docs on the inspircd.org site, the other side\r * will then send back its own server string.\r */\r virtual bool OnConnected();\r\r /** Handle socket error event\r */\r virtual void OnError(InspSocketError e);\r\r /** Sends an error to the remote server, and displays it locally to show\r * that it was sent.\r */\r void SendError(const std::string &errormessage);\r\r /** Handle socket disconnect event\r */\r virtual int OnDisconnect();\r\r /** Recursively send the server tree with distances as hops.\r * This is used during network burst to inform the other server\r * (and any of ITS servers too) of what servers we know about.\r * If at any point any of these servers already exist on the other\r * end, our connection may be terminated. The hopcounts given\r * by this function are relative, this doesn't matter so long as\r * they are all >1, as all the remote servers re-calculate them\r * to be relative too, with themselves as hop 0.\r */\r void SendServers(TreeServer* Current, TreeServer* s, int hops);\r\r /** Returns my capabilities as a string\r */\r std::string MyCapabilities();\r\r /** Send my capabilities to the remote side\r */\r void SendCapabilities();\r\r /* Check a comma seperated list for an item */\r bool HasItem(const std::string &list, const std::string &item);\r\r /* Isolate and return the elements that are different between two comma seperated lists */\r std::string ListDifference(const std::string &one, const std::string &two);\r\r bool Capab(const std::deque<std::string> ¶ms);\r\r /** This function forces this server to quit, removing this server\r * and any users on it (and servers and users below that, etc etc).\r * It's very slow and pretty clunky, but luckily unless your network\r * is having a REAL bad hair day, this function shouldnt be called\r * too many times a month ;-)\r */\r void SquitServer(std::string &from, TreeServer* Current);\r\r /** This is a wrapper function for SquitServer above, which\r * does some validation first and passes on the SQUIT to all\r * other remaining servers.\r */\r void Squit(TreeServer* Current, const std::string &reason);\r\r /** FMODE command - server mode with timestamp checks */\r bool ForceMode(const std::string &source, std::deque<std::string> ¶ms);\r\r /** FTOPIC command */\r bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms);\r\r /** FJOIN, similar to TS6 SJOIN, but not quite. */\r bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms);\r\r /** NICK command */\r bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms);\r\r /** Send one or more FJOINs for a channel of users.\r * If the length of a single line is more than 480-NICKMAX\r * in length, it is split over multiple lines.\r */\r void SendFJoins(TreeServer* Current, chanrec* c);\r\r /** Send G, Q, Z and E lines */\r void SendXLines(TreeServer* Current);\r\r /** Send channel modes and topics */\r void SendChannelModes(TreeServer* Current);\r\r /** send all users and their oper state/modes */\r void SendUsers(TreeServer* Current);\r\r /** This function is called when we want to send a netburst to a local\r * server. There is a set order we must do this, because for example\r * users require their servers to exist, and channels require their\r * users to exist. You get the idea.\r */\r void DoBurst(TreeServer* s);\r\r /** This function is called when we receive data from a remote\r * server. We buffer the data in a std::string (it doesnt stay\r * there for long), reading using InspSocket::Read() which can\r * read up to 16 kilobytes in one operation.\r *\r * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES\r * THE SOCKET OBJECT FOR US.\r */\r virtual bool OnDataReady();\r\r /** Send one or more complete lines down the socket\r */\r int WriteLine(std::string line);\r\r /** Handle ERROR command */\r bool Error(std::deque<std::string> ¶ms);\r\r /** remote MOTD. leet, huh? */\r bool Motd(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** remote ADMIN. leet, huh? */\r bool Admin(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** Remote MODULES */\r bool Modules(const std::string &prefix, std::deque<std::string> ¶ms);\r\r bool Stats(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** Because the core won't let users or even SERVERS set +o,\r * we use the OPERTYPE command to do this.\r */\r bool OperType(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** Because Andy insists that services-compatible servers must\r * implement SVSNICK and SVSJOIN, that's exactly what we do :p\r */\r bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms);\r\r bool OperQuit(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** SVSJOIN\r */\r bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** REHASH\r */\r bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** KILL\r */\r bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** PONG\r */\r bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** METADATA\r */\r bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** VERSION\r */\r bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** CHGHOST\r */\r bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** ADDLINE\r */\r bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** CHGNAME\r */\r bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** WHOIS\r */\r bool Whois(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** PUSH\r */\r bool Push(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** SETTIME\r */\r bool HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** TIME\r */\r bool Time(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** PING\r */\r bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** Remove all modes from a channel, including statusmodes (+qaovh etc), simplemodes, parameter modes.\r * This does not update the timestamp of the target channel, this must be done seperately.\r */\r bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** <- (remote) <- SERVER\r */\r bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms);\r\r /** (local) -> SERVER\r */\r bool Outbound_Reply_Server(std::deque<std::string> ¶ms);\r\r /** (local) <- SERVER\r */\r bool Inbound_Server(std::deque<std::string> ¶ms);\r\r /** Handle netsplit\r */\r void Split(const std::string &line, std::deque<std::string> &n);\r\r /** Process complete line from buffer\r */\r bool ProcessLine(std::string &line);\r\r /** Get this server's name\r */\r virtual std::string GetName();\r\r /** Handle socket timeout from connect()\r */\r virtual void OnTimeout();\r\r /** Handle socket close event\r */\r virtual void OnClose();\r\r /** Handle incoming connection event\r */\r virtual int OnIncomingConnection(int newsock, char* ip);\r};\r\r/* Used to validate the value lengths of multiple parameters for a command */\rstruct cmd_validation\r{\r const char* item;\r size_t param;\r size_t length;\r};\r\r/* Used to validate the length values in CAPAB CAPABILITIES */\rstruct cap_validation\r{\r const char* reason;\r const char* key;\r size_t size;\r};\r\r#endif\r\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
+ *
+ * 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/>.
+ */
+
+
+#pragma once
+
+#include "inspircd.h"
+
+#include "utils.h"
+
+/*
+ * The server list in InspIRCd is maintained as two structures
+ * which hold the data in different ways. Most of the time, we
+ * want to very quicky obtain three pieces of information:
+ *
+ * (1) The information on a server
+ * (2) The information on the server we must send data through
+ * to actually REACH the server we're after
+ * (3) Potentially, the child/parent objects of this server
+ *
+ * The InspIRCd spanning protocol provides easy access to these
+ * by storing the data firstly in a recursive structure, where
+ * each item references its parent item, and a dynamic list
+ * of child items, and another structure which stores the items
+ * hashed, linearly. This means that if we want to find a server
+ * by name quickly, we can look it up in the hash, avoiding
+ * any O(n) lookups. If however, during a split or sync, we want
+ * to apply an operation to a server, and any of its child objects
+ * we can resort to recursion to walk the tree structure.
+ * Any socket can have one of five states at any one time.
+ *
+ * CONNECTING: indicates an outbound socket which is
+ * waiting to be writeable.
+ * WAIT_AUTH_1: indicates the socket is outbound and
+ * has successfully connected, but has not
+ * yet sent and received SERVER strings.
+ * WAIT_AUTH_2: indicates that the socket is inbound
+ * but has not yet sent and received
+ * SERVER strings.
+ * CONNECTED: represents a fully authorized, fully
+ * connected server.
+ * DYING: represents a server that has had an error.
+ */
+enum ServerState { CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED, DYING };
+
+struct CapabData
+{
+ reference<Link> link; /* Link block used for this connection */
+ reference<Autoconnect> ac; /* Autoconnect used to cause this connection, if any */
+ std::string ModuleList; /* Required module list of other server from CAPAB */
+ std::string OptModuleList; /* Optional module list of other server from CAPAB */
+ std::string ChanModes;
+ std::string UserModes;
+ std::map<std::string,std::string> CapKeys; /* CAPAB keys from other server */
+ std::string ourchallenge; /* Challenge sent for challenge/response */
+ std::string theirchallenge; /* Challenge recv for challenge/response */
+ int capab_phase; /* Have sent CAPAB already */
+ bool auth_fingerprint; /* Did we auth using SSL certificate fingerprint */
+ bool auth_challenge; /* Did we auth using challenge/response */
+
+ // Data saved from incoming SERVER command, for later use when our credentials have been accepted by the other party
+ std::string description;
+ std::string sid;
+ std::string name;
+ bool hidden;
+};
+
+/** Every SERVER connection inbound or outbound is represented by an object of
+ * type TreeSocket. During setup, the object can be found in Utils->timeoutlist;
+ * after setup, MyRoot will have been created as a child of Utils->TreeRoot
+ */
+class TreeSocket : public BufferedSocket
+{
+ struct BurstState;
+
+ std::string linkID; /* Description for this link */
+ ServerState LinkState; /* Link state */
+ CapabData* capab; /* Link setup data (held until burst is sent) */
+ TreeServer* MyRoot; /* The server we are talking to */
+ int proto_version; /* Remote protocol version */
+
+ /** True if we've sent our burst.
+ * This only changes the behavior of message translation for 1202 protocol servers and it can be
+ * removed once 1202 support is dropped.
+ */
+ bool burstsent;
+
+ /** Checks if the given servername and sid are both free
+ */
+ bool CheckDuplicate(const std::string& servername, const std::string& sid);
+
+ /** Send all ListModeBase modes set on the channel
+ */
+ void SendListModes(Channel* chan);
+
+ /** Send all known information about a channel */
+ void SyncChannel(Channel* chan, BurstState& bs);
+
+ /** Send all users and their oper state, away state and metadata */
+ void SendUsers(BurstState& bs);
+
+ /** Send all additional info about the given server to this server */
+ void SendServerInfo(TreeServer* from);
+
+ /** Find the User source of a command given a prefix and a command string.
+ * This connection must be fully up when calling this function.
+ * @param prefix Prefix string to find the source User object for. Can be a sid, a uuid or a server name.
+ * @param command The command whose source to find. This is required because certain commands (like mode
+ * changes and kills) must be processed even if their claimed source doesn't exist. If the given command is
+ * such a command and the source does not exist, the function returns a valid FakeUser that can be used to
+ * to process the command with.
+ * @return The command source to use when processing the command or NULL if the source wasn't found.
+ * Note that the direction of the returned source is not verified.
+ */
+ User* FindSource(const std::string& prefix, const std::string& command);
+
+ /** Finish the authentication phase of this connection.
+ * Change the state of the connection to CONNECTED, create a TreeServer object for the server on the
+ * other end of the connection using the details provided in the parameters, and finally send a burst.
+ * @param remotename Name of the remote server
+ * @param remotesid SID of the remote server
+ * @param remotedesc Description of the remote server
+ * @param hidden True if the remote server is hidden according to the configuration
+ */
+ void FinishAuth(const std::string& remotename, const std::string& remotesid, const std::string& remotedesc, bool hidden);
+
+ /** Authenticate the remote server.
+ * Validate the parameters and find the link block that matches the remote server. In case of an error,
+ * an appropriate snotice is generated, an ERROR message is sent and the connection is closed.
+ * Failing to find a matching link block counts as an error.
+ * @param params Parameters they sent in the SERVER command
+ * @return Link block for the remote server, or NULL if an error occurred
+ */
+ Link* AuthRemote(const parameterlist& params);
+
+ /** Write a line on this socket with a new line character appended, skipping all translation for old protocols
+ * @param line Line to write without a new line character at the end
+ */
+ void WriteLineNoCompat(const std::string& line);
+
+ public:
+ const time_t age;
+
+ /** Because most of the I/O gubbins are encapsulated within
+ * BufferedSocket, we just call the superclass constructor for
+ * most of the action, and append a few of our own values
+ * to it.
+ */
+ TreeSocket(Link* link, Autoconnect* myac, const std::string& ipaddr);
+
+ /** When a listening socket gives us a new file descriptor,
+ * we must associate it with a socket without creating a new
+ * connection. This constructor is used for this purpose.
+ */
+ TreeSocket(int newfd, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server);
+
+ /** Get link state
+ */
+ ServerState GetLinkState() const { return LinkState; }
+
+ /** Get challenge set in our CAPAB for challenge/response
+ */
+ const std::string& GetOurChallenge();
+
+ /** Get challenge set in our CAPAB for challenge/response
+ */
+ void SetOurChallenge(const std::string &c);
+
+ /** Get challenge set in their CAPAB for challenge/response
+ */
+ const std::string& GetTheirChallenge();
+
+ /** Get challenge set in their CAPAB for challenge/response
+ */
+ void SetTheirChallenge(const std::string &c);
+
+ /** Compare two passwords based on authentication scheme
+ */
+ bool ComparePass(const Link& link, const std::string &theirs);
+
+ /** Clean up information used only during server negotiation
+ */
+ void CleanNegotiationInfo();
+
+ CullResult cull();
+ /** Destructor
+ */
+ ~TreeSocket();
+
+ /** Construct a password, optionally hashed with the other side's
+ * challenge string
+ */
+ std::string MakePass(const std::string &password, const std::string &challenge);
+
+ /** When an outbound connection finishes connecting, we receive
+ * this event, and must send our SERVER string to the other
+ * side. If the other side is happy, as outlined in the server
+ * to server docs on the inspircd.org site, the other side
+ * will then send back its own server string.
+ */
+ void OnConnected();
+
+ /** Handle socket error event
+ */
+ void OnError(BufferedSocketError e) CXX11_OVERRIDE;
+
+ /** Sends an error to the remote server, and displays it locally to show
+ * that it was sent.
+ */
+ void SendError(const std::string &errormessage);
+
+ /** Recursively send the server tree with distances as hops.
+ * This is used during network burst to inform the other server
+ * (and any of ITS servers too) of what servers we know about.
+ */
+ void SendServers(TreeServer* Current, TreeServer* s);
+
+ /** Returns module list as a string, filtered by filter
+ * @param filter a module version bitmask, such as VF_COMMON or VF_OPTCOMMON
+ */
+ std::string MyModules(int filter);
+
+ /** Send my capabilities to the remote side
+ */
+ void SendCapabilities(int phase);
+
+ /* Isolate and return the elements that are different between two lists */
+ void ListDifference(const std::string &one, const std::string &two, char sep,
+ std::string& mleft, std::string& mright);
+
+ bool Capab(const parameterlist ¶ms);
+
+ /** Send one or more FJOINs for a channel of users.
+ * If the length of a single line is more than 480-NICKMAX
+ * in length, it is split over multiple lines.
+ */
+ void SendFJoins(Channel* c);
+
+ /** Send G, Q, Z and E lines */
+ void SendXLines();
+
+ /** Send all known information about a channel */
+ void SyncChannel(Channel* chan);
+
+ /** This function is called when we want to send a netburst to a local
+ * server. There is a set order we must do this, because for example
+ * users require their servers to exist, and channels require their
+ * users to exist. You get the idea.
+ */
+ void DoBurst(TreeServer* s);
+
+ /** This function is called when we receive data from a remote
+ * server.
+ */
+ void OnDataReady();
+
+ /** Send one or more complete lines down the socket
+ */
+ void WriteLine(const std::string& line);
+
+ /** Handle ERROR command */
+ void Error(parameterlist ¶ms);
+
+ /** (local) -> SERVER
+ */
+ bool Outbound_Reply_Server(parameterlist ¶ms);
+
+ /** (local) <- SERVER
+ */
+ bool Inbound_Server(parameterlist ¶ms);
+
+ /** Handle IRC line split
+ */
+ void Split(const std::string &line, std::string& prefix, std::string& command, parameterlist ¶ms);
+
+ /** Process complete line from buffer
+ */
+ void ProcessLine(std::string &line);
+
+ void ProcessConnectedLine(std::string& prefix, std::string& command, parameterlist& params);
+
+ /** Handle socket timeout from connect()
+ */
+ void OnTimeout();
+ /** Handle server quit on close
+ */
+ void Close();
+
+ /** Fixes messages coming from old servers so the new command handlers understand them
+ */
+ bool PreProcessOldProtocolMessage(User*& who, std::string& cmd, std::vector<std::string>& params);
+};