1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
19 /* Foward declarations */
23 class ModuleSpanningTree;
24 class SpanningTreeUtilities;
26 /* This hash_map holds the hash equivalent of the server
27 * tree, used for rapid linear lookups.
29 #if defined(WINDOWS) && !defined(HASHMAP_DEPRECATED)
30 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash_compare<std::string, std::less<std::string> > > server_hash;
32 #ifdef HASHCOMP_DEPRECATED
33 typedef nspace::hash_map<std::string, TreeServer*, nspace::insensitive, irc::StrHashComp> server_hash;
35 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<std::string>, irc::StrHashComp> server_hash;
40 * Initialises server connections
42 class ServerSocketListener : public ListenSocketBase
44 SpanningTreeUtilities *Utils;
47 ServerSocketListener(InspIRCd* Instance, SpanningTreeUtilities *u, int port, char* addr) : ListenSocketBase(Instance, port, addr)
52 virtual void OnAcceptReady(int nfd);
55 typedef std::map<TreeServer*,TreeServer*> TreeServerList;
57 /** A group of modules that implement BufferedSocketHook
58 * that we can use to hook our server to server connections.
60 typedef std::map<irc::string, Module*> hookmodules;
62 /** The Autoconnect class might as well be a struct,
63 * but this is C++ and we don't believe in structs (!).
64 * It holds the entire information of one <autoconnect>
65 * tag from the main config file. We maintain a list
66 * of them, and populate the list on rehash/load.
68 class Autoconnect : public classbase
73 time_t NextConnectTime;
77 /** Contains helper functions and variables for this module,
78 * and keeps them out of the global namespace
80 class SpanningTreeUtilities : public classbase
85 InspIRCd* ServerInstance;
89 ModuleSpanningTree* Creator;
91 /** Flatten links and /MAP for non-opers
94 /** Hide U-Lined servers in /MAP and /LINKS
97 /** Announce TS changes to channels on merge
99 bool AnnounceTSChange;
101 /** Allow modules marked as VF_OPTCOMMON to be mismatched when linking
105 /** Make snomasks +CQ quiet during bursts and splits
109 /** Socket bindings for listening sockets
111 std::vector<ServerSocketListener *> Bindings;
112 /* Number of seconds that a server can go without ping
113 * before opers are warned of high latency.
116 /** This variable represents the root of the server tree
118 TreeServer *TreeRoot;
119 /** Represents the server whose command we are processing
121 FakeUser *ServerUser;
122 /** IPs allowed to link to us
124 std::vector<std::string> ValidIPs;
125 /** Hash of currently connected servers by name
127 server_hash serverlist;
128 /** Hash of currently known server ids
131 /** Hash of servers currently bursting but not initialized as connected
133 std::map<irc::string,TreeSocket*> burstingserverlist;
134 /** List of all outgoing sockets and their timeouts
136 std::map<TreeSocket*, std::pair<std::string, int> > timeoutlist;
137 /** Holds the data from the <link> tags in the conf
139 std::vector<Link> LinkBlocks;
140 /** Holds the data from the <autoconnect> tags in the conf
142 std::vector<Autoconnect> AutoconnectBlocks;
144 /** List of module pointers which can provide I/O abstraction
148 /** List of module names which can provide I/O abstraction
150 std::vector<std::string> hooknames;
152 /** True (default) if we are to use challenge-response HMAC
153 * to authenticate passwords.
155 * NOTE: This defaults to on, but should be turned off if
156 * you are linking to an older version of inspircd.
158 bool ChallengeResponse;
160 /** Ping frequency of server to server links
164 /** Initialise utility class
166 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
168 /** Destroy class and free listeners etc
170 ~SpanningTreeUtilities();
172 /** Send a message from this server to one other local or remote
174 bool DoOneToOne(const std::string &prefix, const std::string &command, parameterlist ¶ms, std::string target);
176 /** Send a message from this server to all but one other, local or remote
178 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, parameterlist ¶ms, std::string omit);
180 /** Send a message from this server to all but one other, local or remote
182 bool DoOneToAllButSender(const char* prefix, const char* command, parameterlist ¶ms, std::string omit);
184 /** Send a message from this server to all others
186 bool DoOneToMany(const std::string &prefix, const std::string &command, parameterlist ¶ms);
188 /** Send a message from this server to all others
190 bool DoOneToMany(const char* prefix, const char* command, parameterlist ¶ms);
192 /** Send a message from this server to all others, without doing any processing on the command (e.g. send it as-is with colons and all)
194 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, parameterlist ¶ms);
196 /** Read the spanningtree module's tags from the config file
198 void ReadConfiguration(bool rebind);
200 /** Add a server to the server list for GetListOfServersForChannel
202 void AddThisServer(TreeServer* server, TreeServerList &list);
204 /** Compile a list of servers which contain members of channel c
206 void GetListOfServersForChannel(Channel* c, TreeServerList &list, char status, const CUList &exempt_list);
208 /** Find a server by name
210 TreeServer* FindServer(const std::string &ServerName);
212 /** Find server by SID
214 TreeServer* FindServerID(const std::string &id);
216 /** Find a route to a server by name
218 TreeServer* BestRouteTo(const std::string &ServerName);
220 /** Find a server by glob mask
222 TreeServer* FindServerMask(const std::string &ServerName);
224 /** Returns true if this is a server name we recognise
226 bool IsServer(const std::string &ServerName);
228 /** Attempt to connect to the failover link of link x
230 void DoFailOver(Autoconnect* x);
232 /** Find a link tag from a server name
234 Link* FindLink(const std::string& name);
236 /** Refresh the IP cache used for allowing inbound connections
238 void RefreshIPCache();