/* * InspIRCd -- Internet Relay Chat Daemon * * Copyright (C) 2008 Robin Burchell * Copyright (C) 2007 Dennis Friis * Copyright (C) 2007 Craig Edwards * * 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 . */ #pragma once #include "treesocket.h" /** Each server in the tree is represented by one class of * type TreeServer. A locally connected TreeServer can * have a class of type TreeSocket associated with it, for * remote servers, the TreeSocket entry will be NULL. * Each server also maintains a pointer to its parent * (NULL if this server is ours, at the top of the tree) * and a pointer to its "Route" (see the comments in the * constructors below), and also a dynamic list of pointers * to its children which can be iterated recursively * if required. Creating or deleting objects of type i* TreeServer automatically maintains the hash_map of * TreeServer items, deleting and inserting them as they * are created and destroyed. */ class TreeServer : public Server { TreeServer* Parent; /* Parent entry */ TreeServer* Route; /* Route entry */ std::vector Children; /* List of child objects */ std::string VersionString; /* Version string or empty string */ /** Full version string including patch version and other info */ std::string fullversion; TreeSocket* Socket; /* Socket used to communicate with this server */ time_t NextPing; /* After this time, the server should be PINGed*/ bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */ std::string sid; /* Server ID */ /** This method is used to add this TreeServer to the * hash maps. It is only called by the constructors. */ void AddHashEntry(); public: typedef std::vector ChildServers; FakeUser* const ServerUser; /* User representing this server */ const time_t age; bool Warned; /* True if we've warned opers about high latency on this server */ bool bursting; /* whether or not this server is bursting */ unsigned int UserCount; /* How many users are on this server? [note: doesn't care about +i] */ unsigned int OperCount; /* How many opers are on this server? */ /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which * represents our own server. Therefore, it has no route, no parent, and * no socket associated with it. Its version string is our own local version. */ TreeServer(); /** When we create a new server, we call this constructor to initialize it. * This constructor initializes the server's Route and Parent, and sets up * its ping counters so that it will be pinged one minute from now. */ TreeServer(const std::string& Name, const std::string& Desc, const std::string& id, TreeServer* Above, TreeSocket* Sock, bool Hide); int QuitUsers(const std::string &reason); /** Get route. * The 'route' is defined as the locally- * connected server which can be used to reach this server. */ TreeServer* GetRoute(); /** Returns true if this server is the tree root (i.e.: us) */ bool IsRoot() const { return (this->Parent == NULL); } /** Returns true if this server is locally connected */ bool IsLocal() const { return (this->Route == this); } /** Get server version string */ const std::string& GetVersion(); /** Get the full version string of this server * @return The full version string of this server, including patch version and other info */ const std::string& GetFullVersion() const { return fullversion; } /** Set time we are next due to ping this server */ void SetNextPingTime(time_t t); /** Get the time we are next due to ping this server */ time_t NextPingTime(); /** Last ping time in milliseconds, used to calculate round trip time */ unsigned long LastPingMsec; /** Round trip time of last ping */ unsigned long rtt; /** When we recieved BURST from this server, used to calculate total burst time at ENDBURST. */ unsigned long StartBurst; /** True if this server is hidden */ bool Hidden; /** True if the server answered their last ping */ bool AnsweredLastPing(); /** Set the server as responding to its last ping */ void SetPingFlag(); /** Get the TreeSocket pointer for local servers. * For remote servers, this returns NULL. */ TreeSocket* GetSocket(); /** Get the parent server. * For the root node, this returns NULL. */ TreeServer* GetParent(); /** Set the server version string */ void SetVersion(const std::string &Version); /** Set the full version string * @param verstr The version string to set */ void SetFullVersion(const std::string& verstr) { fullversion = verstr; } /** Sets the description of this server. Called when the description of a remote server changes * and we are notified about it. * @param descstr The description to set */ void SetDesc(const std::string& descstr) { description = descstr; } /** Return all child servers */ const ChildServers& GetChildren() const { return Children; } /** Add a child server */ void AddChild(TreeServer* Child); /** Delete a child server, return false if it didn't exist. */ bool DelChild(TreeServer* Child); /** Removes child nodes of this node, and of that node, etc etc. * This is used during netsplits to automatically tidy up the * server tree. It is slow, we don't use it for much else. */ void Tidy(); /** Get server ID */ const std::string& GetID(); /** Marks a server as having finished bursting and performs appropriate actions. */ void FinishBurst(); /** Recursive call for child servers */ void FinishBurstInternal(); /** (Re)check the uline state of this server */ void CheckULine(); CullResult cull(); /** Destructor * Removes the reference to this object from the * hash maps. */ ~TreeServer(); /** Returns the TreeServer the given user is connected to * @param user The user whose server to return * @return The TreeServer this user is connected to. */ static TreeServer* Get(User* user) { return static_cast(user->server); } };