1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
25 #include "inspircd_config.h"
27 #include "configreader.h"
32 #include "commands/cmd_whois.h"
34 #include "helperfuncs.h"
36 #include "inspstring.h"
41 #include "cull_list.h"
44 #define nspace __gnu_cxx
47 * The server list in InspIRCd is maintained as two structures
48 * which hold the data in different ways. Most of the time, we
49 * want to very quicky obtain three pieces of information:
51 * (1) The information on a server
52 * (2) The information on the server we must send data through
53 * to actually REACH the server we're after
54 * (3) Potentially, the child/parent objects of this server
56 * The InspIRCd spanning protocol provides easy access to these
57 * by storing the data firstly in a recursive structure, where
58 * each item references its parent item, and a dynamic list
59 * of child items, and another structure which stores the items
60 * hashed, linearly. This means that if we want to find a server
61 * by name quickly, we can look it up in the hash, avoiding
62 * any O(n) lookups. If however, during a split or sync, we want
63 * to apply an operation to a server, and any of its child objects
64 * we can resort to recursion to walk the tree structure.
67 class ModuleSpanningTree;
68 static ModuleSpanningTree* TreeProtocolModule;
70 extern ServerConfig* Config;
71 extern InspIRCd* ServerInstance;
72 extern std::vector<Module*> modules;
73 extern std::vector<ircd_module*> factory;
76 /* Any socket can have one of five states at any one time.
77 * The LISTENER state indicates a socket which is listening
78 * for connections. It cannot receive data itself, only incoming
80 * The CONNECTING state indicates an outbound socket which is
81 * waiting to be writeable.
82 * The WAIT_AUTH_1 state indicates the socket is outbound and
83 * has successfully connected, but has not yet sent and received
85 * The WAIT_AUTH_2 state indicates that the socket is inbound
86 * (allocated by a LISTENER) but has not yet sent and received
88 * The CONNECTED state represents a fully authorized, fully
91 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
93 /* We need to import these from the core for use in netbursts */
94 extern user_hash clientlist;
95 extern chan_hash chanlist;
97 /* Foward declarations */
101 /* This variable represents the root of the server tree
102 * (for all intents and purposes, it's us)
104 TreeServer *TreeRoot;
108 /* This hash_map holds the hash equivalent of the server
109 * tree, used for rapid linear lookups.
111 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
112 server_hash serverlist;
114 /* More forward declarations */
115 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
116 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
117 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
118 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
119 void ReadConfiguration(bool rebind);
121 /* Flatten links and /MAP for non-opers */
123 /* Hide U-Lined servers in /MAP and /LINKS */
126 /* Imported from xline.cpp for use during netburst */
127 extern std::vector<KLine> klines;
128 extern std::vector<GLine> glines;
129 extern std::vector<ZLine> zlines;
130 extern std::vector<QLine> qlines;
131 extern std::vector<ELine> elines;
132 extern std::vector<KLine> pklines;
133 extern std::vector<GLine> pglines;
134 extern std::vector<ZLine> pzlines;
135 extern std::vector<QLine> pqlines;
136 extern std::vector<ELine> pelines;
138 /* Each server in the tree is represented by one class of
139 * type TreeServer. A locally connected TreeServer can
140 * have a class of type TreeSocket associated with it, for
141 * remote servers, the TreeSocket entry will be NULL.
142 * Each server also maintains a pointer to its parent
143 * (NULL if this server is ours, at the top of the tree)
144 * and a pointer to its "Route" (see the comments in the
145 * constructors below), and also a dynamic list of pointers
146 * to its children which can be iterated recursively
147 * if required. Creating or deleting objects of type
148 i* TreeServer automatically maintains the hash_map of
149 * TreeServer items, deleting and inserting them as they
150 * are created and destroyed.
153 class TreeServer : public classbase
155 TreeServer* Parent; /* Parent entry */
156 TreeServer* Route; /* Route entry */
157 std::vector<TreeServer*> Children; /* List of child objects */
158 irc::string ServerName; /* Server's name */
159 std::string ServerDesc; /* Server's description */
160 std::string VersionString; /* Version string or empty string */
161 int UserCount; /* Not used in this version */
162 int OperCount; /* Not used in this version */
163 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
164 time_t NextPing; /* After this time, the server should be PINGed*/
165 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
169 /* We don't use this constructor. Its a dummy, and won't cause any insertion
170 * of the TreeServer into the hash_map. See below for the two we DO use.
178 UserCount = OperCount = 0;
179 VersionString = Srv->GetVersion();
182 /* We use this constructor only to create the 'root' item, TreeRoot, which
183 * represents our own server. Therefore, it has no route, no parent, and
184 * no socket associated with it. Its version string is our own local version.
186 TreeServer(std::string Name, std::string Desc) : ServerName(Name.c_str()), ServerDesc(Desc)
190 UserCount = OperCount = 0;
191 VersionString = Srv->GetVersion();
193 Socket = NULL; /* Fix by brain */
197 /* When we create a new server, we call this constructor to initialize it.
198 * This constructor initializes the server's Route and Parent, and sets up
199 * its ping counters so that it will be pinged one minute from now.
201 TreeServer(std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock) : Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
204 UserCount = OperCount = 0;
205 this->SetNextPingTime(time(NULL) + 120);
208 /* find the 'route' for this server (e.g. the one directly connected
209 * to the local server, which we can use to reach it)
211 * In the following example, consider we have just added a TreeServer
212 * class for server G on our network, of which we are server A.
213 * To route traffic to G (marked with a *) we must send the data to
214 * B (marked with a +) so this algorithm initializes the 'Route'
215 * value to point at whichever server traffic must be routed through
216 * to get here. If we were to try this algorithm with server B,
217 * the Route pointer would point at its own object ('this').
227 * We only run this algorithm when a server is created, as
228 * the routes remain constant while ever the server exists, and
229 * do not need to be re-calculated.
233 if (Route == TreeRoot)
239 while (this->Route->GetParent() != TreeRoot)
241 this->Route = Route->GetParent();
245 /* Because recursive code is slow and takes a lot of resources,
246 * we store two representations of the server tree. The first
247 * is a recursive structure where each server references its
248 * children and its parent, which is used for netbursts and
249 * netsplits to dump the whole dataset to the other server,
250 * and the second is used for very fast lookups when routing
251 * messages and is instead a hash_map, where each item can
252 * be referenced by its server name. The AddHashEntry()
253 * call below automatically inserts each TreeServer class
254 * into the hash_map as it is created. There is a similar
255 * maintainance call in the destructor to tidy up deleted
259 this->AddHashEntry();
262 int QuitUsers(const std::string &reason)
264 log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
265 const char* reason_s = reason.c_str();
266 std::vector<userrec*> time_to_die;
267 for (user_hash::iterator n = clientlist.begin(); n != clientlist.end(); n++)
269 if (!strcmp(n->second->server, this->ServerName.c_str()))
271 time_to_die.push_back(n->second);
274 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
276 userrec* a = (userrec*)*n;
277 log(DEBUG,"Kill %s fd=%d",a->nick,a->fd);
279 kill_link(a,reason_s);
281 return time_to_die.size();
284 /* This method is used to add the structure to the
285 * hash_map for linear searches. It is only called
286 * by the constructors.
290 server_hash::iterator iter;
291 iter = serverlist.find(this->ServerName.c_str());
292 if (iter == serverlist.end())
293 serverlist[this->ServerName.c_str()] = this;
296 /* This method removes the reference to this object
297 * from the hash_map which is used for linear searches.
298 * It is only called by the default destructor.
302 server_hash::iterator iter;
303 iter = serverlist.find(this->ServerName.c_str());
304 if (iter != serverlist.end())
305 serverlist.erase(iter);
308 /* These accessors etc should be pretty self-
312 TreeServer* GetRoute()
317 std::string GetName()
319 return ServerName.c_str();
322 std::string GetDesc()
327 std::string GetVersion()
329 return VersionString;
332 void SetNextPingTime(time_t t)
335 LastPingWasGood = false;
338 time_t NextPingTime()
343 bool AnsweredLastPing()
345 return LastPingWasGood;
350 LastPingWasGood = true;
373 TreeSocket* GetSocket()
378 TreeServer* GetParent()
383 void SetVersion(std::string Version)
385 VersionString = Version;
388 unsigned int ChildCount()
390 return Children.size();
393 TreeServer* GetChild(unsigned int n)
395 if (n < Children.size())
397 /* Make sure they cant request
398 * an out-of-range object. After
399 * all we know what these programmer
400 * types are like *grin*.
410 void AddChild(TreeServer* Child)
412 Children.push_back(Child);
415 bool DelChild(TreeServer* Child)
417 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
428 /* Removes child nodes of this node, and of that node, etc etc.
429 * This is used during netsplits to automatically tidy up the
430 * server tree. It is slow, we don't use it for much else.
434 bool stillchildren = true;
435 while (stillchildren)
437 stillchildren = false;
438 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
440 TreeServer* s = (TreeServer*)*a;
444 stillchildren = true;
453 /* We'd better tidy up after ourselves, eh? */
454 this->DelHashEntry();
458 /* The Link class might as well be a struct,
459 * but this is C++ and we don't believe in structs (!).
460 * It holds the entire information of one <link>
461 * tag from the main config file. We maintain a list
462 * of them, and populate the list on rehash/load.
465 class Link : public classbase
471 std::string SendPass;
472 std::string RecvPass;
473 unsigned long AutoConnect;
474 time_t NextConnectTime;
475 std::string EncryptionKey;
476 bool HiddenFromStats;
479 /* The usual stuff for inspircd modules,
480 * plus the vector of Link classes which we
481 * use to store the <link> tags from the config
485 std::vector<Link> LinkBlocks;
487 /* Yay for fast searches!
488 * This is hundreds of times faster than recursion
489 * or even scanning a linked list, especially when
490 * there are more than a few servers to deal with.
493 TreeServer* FindServer(std::string ServerName)
495 server_hash::iterator iter;
496 iter = serverlist.find(ServerName.c_str());
497 if (iter != serverlist.end())
507 /* Returns the locally connected server we must route a
508 * message through to reach server 'ServerName'. This
509 * only applies to one-to-one and not one-to-many routing.
510 * See the comments for the constructor of TreeServer
513 TreeServer* BestRouteTo(std::string ServerName)
515 if (ServerName.c_str() == TreeRoot->GetName())
517 TreeServer* Found = FindServer(ServerName);
520 return Found->GetRoute();
528 /* Find the first server matching a given glob mask.
529 * Theres no find-using-glob method of hash_map [awwww :-(]
530 * so instead, we iterate over the list using an iterator
531 * and match each one until we get a hit. Yes its slow,
534 TreeServer* FindServerMask(std::string ServerName)
536 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
538 if (Srv->MatchText(i->first.c_str(),ServerName))
544 /* A convenient wrapper that returns true if a server exists */
545 bool IsServer(std::string ServerName)
547 return (FindServer(ServerName) != NULL);
551 class cmd_rconnect : public command_t
555 cmd_rconnect (Module* Callback) : command_t("RCONNECT", 'o', 2), Creator(Callback)
557 this->source = "m_spanningtree.so";
558 syntax = "<remote-server-mask> <servermask>";
561 void Handle (const char** parameters, int pcnt, userrec *user)
563 WriteServ(user->fd,"NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
564 /* Is this aimed at our server? */
565 if (Srv->MatchText(Srv->GetServerName(),parameters[0]))
567 /* Yes, initiate the given connect */
568 WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
570 para[0] = parameters[1];
571 Creator->OnPreCommand("CONNECT", para, 1, user, true);
578 /* Every SERVER connection inbound or outbound is represented by
579 * an object of type TreeSocket.
580 * TreeSockets, being inherited from InspSocket, can be tied into
581 * the core socket engine, and we cn therefore receive activity events
582 * for them, just like activex objects on speed. (yes really, that
583 * is a technical term!) Each of these which relates to a locally
584 * connected server is assocated with it, by hooking it onto a
585 * TreeSocket class using its constructor. In this way, we can
586 * maintain a list of servers, some of which are directly connected,
587 * some of which are not.
590 class TreeSocket : public InspSocket
593 std::string in_buffer;
594 ServerState LinkState;
595 std::string InboundServerName;
596 std::string InboundDescription;
598 int num_lost_servers;
600 bool LastPingWasGood;
604 unsigned int keylength;
608 /* Because most of the I/O gubbins are encapsulated within
609 * InspSocket, we just call the superclass constructor for
610 * most of the action, and append a few of our own values
613 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
614 : InspSocket(host, port, listening, maxtime)
617 this->LinkState = LISTENER;
619 this->ctx_out = NULL;
622 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
623 : InspSocket(host, port, listening, maxtime)
626 this->LinkState = CONNECTING;
628 this->ctx_out = NULL;
631 /* When a listening socket gives us a new file descriptor,
632 * we must associate it with a socket without creating a new
633 * connection. This constructor is used for this purpose.
635 TreeSocket(int newfd, char* ip)
636 : InspSocket(newfd, ip)
638 this->LinkState = WAIT_AUTH_1;
640 this->ctx_out = NULL;
641 this->SendCapabilities();
652 void InitAES(std::string key,std::string SName)
659 log(DEBUG,"Initialized AES key %s",key.c_str());
660 // key must be 16, 24, 32 etc bytes (multiple of 8)
661 keylength = key.length();
662 if (!(keylength == 16 || keylength == 24 || keylength == 32))
664 WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
665 log(DEBUG,"Key length not 16, 24 or 32 characters!");
669 WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
670 ctx_in->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
671 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
672 ctx_out->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
673 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
677 /* When an outbound connection finishes connecting, we receive
678 * this event, and must send our SERVER string to the other
679 * side. If the other side is happy, as outlined in the server
680 * to server docs on the inspircd.org site, the other side
681 * will then send back its own server string.
683 virtual bool OnConnected()
685 if (this->LinkState == CONNECTING)
687 /* we do not need to change state here. */
688 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
690 if (x->Name == this->myhost)
692 Srv->SendOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
693 this->SendCapabilities();
694 if (x->EncryptionKey != "")
696 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
698 WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
702 this->WriteLine("AES "+Srv->GetServerName());
703 this->InitAES(x->EncryptionKey,x->Name.c_str());
706 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
707 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
712 /* There is a (remote) chance that between the /CONNECT and the connection
713 * being accepted, some muppet has removed the <link> block and rehashed.
714 * If that happens the connection hangs here until it's closed. Unlikely
715 * and rather harmless.
717 Srv->SendOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
721 virtual void OnError(InspSocketError e)
723 /* We don't handle this method, because all our
724 * dirty work is done in OnClose() (see below)
725 * which is still called on error conditions too.
727 if (e == I_ERR_CONNECT)
729 Srv->SendOpers("*** Connection failed: Connection refused");
733 virtual int OnDisconnect()
735 /* For the same reason as above, we don't
736 * handle OnDisconnect()
741 /* Recursively send the server tree with distances as hops.
742 * This is used during network burst to inform the other server
743 * (and any of ITS servers too) of what servers we know about.
744 * If at any point any of these servers already exist on the other
745 * end, our connection may be terminated. The hopcounts given
746 * by this function are relative, this doesn't matter so long as
747 * they are all >1, as all the remote servers re-calculate them
748 * to be relative too, with themselves as hop 0.
750 void SendServers(TreeServer* Current, TreeServer* s, int hops)
753 for (unsigned int q = 0; q < Current->ChildCount(); q++)
755 TreeServer* recursive_server = Current->GetChild(q);
756 if (recursive_server != s)
758 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
759 this->WriteLine(command);
760 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
761 /* down to next level */
762 this->SendServers(recursive_server, s, hops+1);
767 std::string MyCapabilities()
769 ServerConfig* Config = Srv->GetConfig();
770 std::vector<std::string> modlist;
771 std::string capabilities = "";
773 for (int i = 0; i <= MODCOUNT; i++)
775 if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
776 modlist.push_back(Config->module_names[i]);
778 sort(modlist.begin(),modlist.end());
779 for (unsigned int i = 0; i < modlist.size(); i++)
782 capabilities = capabilities + ",";
783 capabilities = capabilities + modlist[i];
788 void SendCapabilities()
790 this->WriteLine("CAPAB "+MyCapabilities());
793 bool Capab(std::deque<std::string> params)
795 if (params.size() != 1)
797 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
801 if (params[0] != this->MyCapabilities())
803 std::string quitserver = this->myhost;
804 if (this->InboundServerName != "")
806 quitserver = this->InboundServerName;
809 WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
810 WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
811 WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
812 WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
813 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
820 /* This function forces this server to quit, removing this server
821 * and any users on it (and servers and users below that, etc etc).
822 * It's very slow and pretty clunky, but luckily unless your network
823 * is having a REAL bad hair day, this function shouldnt be called
824 * too many times a month ;-)
826 void SquitServer(std::string &from, TreeServer* Current)
828 /* recursively squit the servers attached to 'Current'.
829 * We're going backwards so we don't remove users
830 * while we still need them ;)
832 for (unsigned int q = 0; q < Current->ChildCount(); q++)
834 TreeServer* recursive_server = Current->GetChild(q);
835 this->SquitServer(from,recursive_server);
837 /* Now we've whacked the kids, whack self */
839 num_lost_users += Current->QuitUsers(from);
842 /* This is a wrapper function for SquitServer above, which
843 * does some validation first and passes on the SQUIT to all
844 * other remaining servers.
846 void Squit(TreeServer* Current,std::string reason)
848 if ((Current) && (Current != TreeRoot))
850 std::deque<std::string> params;
851 params.push_back(Current->GetName());
852 params.push_back(":"+reason);
853 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
854 if (Current->GetParent() == TreeRoot)
856 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
860 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
862 num_lost_servers = 0;
864 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
865 SquitServer(from, Current);
867 Current->GetParent()->DelChild(Current);
869 WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
873 log(DEFAULT,"Squit from unknown server");
877 /* FMODE command - server mode with timestamp checks */
878 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
880 /* Chances are this is a 1.0 FMODE without TS */
881 if (params.size() < 3)
883 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
888 std::string sourceserv;
890 /* Are we dealing with an FMODE from a user, or from a server? */
891 userrec* who = Srv->FindNick(source);
894 /* FMODE from a user, set sourceserv to the users server name */
895 sourceserv = who->server;
899 /* FMODE from a server, create a fake user to receive mode feedback */
901 who->fd = FD_MAGIC_NUMBER;
902 smode = true; /* Setting this flag tells us we should free the userrec later */
903 sourceserv = source; /* Set sourceserv to the actual source string */
905 const char* modelist[64];
908 memset(&modelist,0,sizeof(modelist));
909 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
913 /* The timestamp is in this position.
914 * We don't want to pass that up to the
915 * server->client protocol!
917 TS = atoi(params[q].c_str());
921 /* Everything else is fine to append to the modelist */
922 modelist[n++] = params[q].c_str();
926 /* Extract the TS value of the object, either userrec or chanrec */
927 userrec* dst = Srv->FindNick(params[0]);
928 chanrec* chan = NULL;
936 chan = Srv->FindChannel(params[0]);
943 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
948 log(DEBUG,"Entering TS equality check");
949 ModeHandler* mh = NULL;
950 unsigned long paramptr = 3;
951 std::string to_bounce = "";
952 std::string to_keep = "";
953 std::vector<std::string> params_to_keep;
954 std::string params_to_bounce = "";
958 char old_bounce_change = 0;
959 /* Merge modes, basically do special stuff to mode with params */
960 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
973 /* We only care about whats being set,
974 * not whats being unset
976 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
978 if ((mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
980 /* We only want to do special things to
981 * modes with parameters, we are going to rewrite
985 adding ? cur_change = '+' : cur_change = '-';
987 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
989 /* The mode is set here, check which we should keep */
992 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
994 if (which_to_keep == true)
996 /* Keep ours, bounce theirs:
997 * Send back ours to them and
998 * drop their mode changs
1000 adding ? cur_change = '+' : cur_change = '-';
1001 if (cur_change != old_bounce_change)
1002 to_bounce += cur_change;
1004 old_bounce_change = cur_change;
1006 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1007 params_to_bounce.append(" ").append(ret.second);
1011 /* Keep theirs: Accept their mode change,
1014 adding ? cur_change = '+' : cur_change = '-';
1015 if (cur_change != old_change)
1016 to_keep += cur_change;
1018 old_change = cur_change;
1020 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1021 params_to_keep.push_back(params[paramptr]);
1026 /* Mode isnt set here, we want it */
1027 adding ? cur_change = '+' : cur_change = '-';
1028 if (cur_change != old_change)
1029 to_keep += cur_change;
1031 old_change = cur_change;
1033 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1034 params_to_keep.push_back(params[paramptr]);
1041 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1045 adding ? cur_change = '+' : cur_change = '-';
1047 /* Just keep this, safe to merge with no checks
1048 * it has no parameters
1051 if (cur_change != old_change)
1052 to_keep += cur_change;
1054 old_change = cur_change;
1056 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1058 log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1059 params_to_keep.push_back(params[paramptr++]);
1066 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1070 /* Taking a mode away */
1071 adding ? cur_change = '+' : cur_change = '-';
1073 if (cur_change != old_change)
1074 to_keep += cur_change;
1076 old_change = cur_change;
1078 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1079 params_to_keep.push_back(params[paramptr++]);
1086 if (to_bounce.length())
1088 std::deque<std::string> newparams;
1089 newparams.push_back(params[0]);
1090 newparams.push_back(ConvToStr(ourTS));
1091 newparams.push_back(to_bounce+params_to_bounce);
1092 DoOneToOne(Srv->GetServerName(),"FMODE",newparams,sourceserv);
1095 if (to_keep.length())
1098 modelist[0] = params[0].c_str();
1099 modelist[1] = to_keep.c_str();
1101 for (unsigned int q = 2; (q < params.size()) && (q < 64); q++)
1102 modelist[q] = params_to_keep[n++].c_str();
1106 Srv->SendMode(modelist, n+2, who);
1110 Srv->CallCommandHandler("MODE", modelist, n+2, who);
1113 /* HOT POTATO! PASS IT ON! */
1114 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1118 /* U-lined servers always win regardless of their TS */
1119 if ((TS > ourTS) && (!Srv->IsUlined(source)))
1121 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1122 * SHOULD accept it, if its clock is right.
1124 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1125 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1126 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1128 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1129 * writing the code. It took me a while to come up with this solution.
1131 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1134 std::deque<std::string> newparams; /* New parameter list we send back */
1135 newparams.push_back(params[0]); /* Target, user or channel */
1136 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1137 newparams.push_back(""); /* This contains the mode string. For now
1138 * it's empty, we fill it below.
1141 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1142 * set to avoid a desync here.
1144 std::string modebounce = "";
1147 ModeHandler* mh = NULL;
1148 char cur_change = 1;
1149 char old_change = 0;
1150 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1152 /* Iterate over all mode chars in the sent set */
1155 /* Adding or subtracting modes? */
1163 /* Find the mode handler for this mode */
1164 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1166 /* Got a mode handler?
1167 * This also prevents us bouncing modes we have no handler for.
1174 /* Does the mode require a parameter right now?
1175 * If it does, fetch it if we can
1177 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1180 /* Call the ModeSet method to determine if its set with the
1181 * given parameter here or not.
1183 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1185 /* XXX: Really. Dont ask.
1186 * Determine from if its set combined with what the current
1187 * 'state' is (adding or not) as to wether we should 'invert'
1188 * or 'reinforce' the mode change
1190 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1192 /* Quickly determine if we have 'flipped' from + to -,
1193 * or - to +, to prevent unneccessary +/- chars in the
1194 * output string that waste bandwidth
1196 if (cur_change != old_change)
1197 modebounce += cur_change;
1198 old_change = cur_change;
1200 /* Add the mode character to the output string */
1201 modebounce += mh->GetModeChar();
1203 /* We got a parameter back from ModeHandler::ModeSet,
1204 * are we supposed to be sending one out right now?
1206 if (ret.second.length())
1208 if (mh->GetNumParams(cur_change == '+') > 0)
1209 /* Yes we're supposed to be sending out
1210 * the parameter. Make sure it goes
1212 newparams.push_back(ret.second);
1220 /* Update the parameters for FMODE with the new 'bounced' string */
1221 newparams[2] = modebounce;
1222 /* Only send it back the way it came, no need to send it anywhere else */
1223 DoOneToOne(Srv->GetServerName(),"FMODE",newparams,sourceserv);
1224 log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1228 log(DEBUG,"Allow modes, TS lower for sender");
1229 /* The server was ulined, but something iffy is up with the TS.
1230 * Sound the alarm bells!
1232 if ((Srv->IsUlined(sourceserv)) && (TS > ourTS))
1234 WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
1236 /* Allow the mode, route it to either server or user command handling */
1238 Srv->SendMode(modelist,n,who);
1240 Srv->CallCommandHandler("MODE", modelist, n, who);
1242 /* HOT POTATO! PASS IT ON! */
1243 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1245 /* Are we supposed to free the userrec? */
1252 /* FTOPIC command */
1253 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1255 if (params.size() != 4)
1257 time_t ts = atoi(params[1].c_str());
1258 std::string nsource = source;
1260 chanrec* c = Srv->FindChannel(params[0]);
1263 if ((ts >= c->topicset) || (!*c->topic))
1265 std::string oldtopic = c->topic;
1266 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1267 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1269 /* if the topic text is the same as the current topic,
1270 * dont bother to send the TOPIC command out, just silently
1271 * update the set time and set nick.
1273 if (oldtopic != params[3])
1275 userrec* user = Srv->FindNick(source);
1278 WriteChannelWithServ(source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
1282 WriteChannel(c, user, "TOPIC %s :%s", c->name, c->topic);
1283 nsource = user->server;
1285 /* all done, send it on its way */
1286 params[3] = ":" + params[3];
1287 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1296 /* FJOIN, similar to unreal SJOIN */
1297 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1299 if (params.size() < 3)
1303 char modestring[MAXBUF];
1304 char* mode_users[127];
1305 memset(&mode_users,0,sizeof(mode_users));
1306 mode_users[0] = first;
1307 mode_users[1] = modestring;
1309 unsigned int modectr = 2;
1311 userrec* who = NULL;
1312 std::string channel = params[0];
1313 time_t TS = atoi(params[1].c_str());
1316 chanrec* chan = Srv->FindChannel(channel);
1321 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1323 /* default is a high value, which if we dont have this
1324 * channel will let the other side apply their modes.
1326 time_t ourTS = time(NULL)+600;
1327 chanrec* us = Srv->FindChannel(channel);
1333 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1335 /* do this first, so our mode reversals are correctly received by other servers
1336 * if there is a TS collision.
1338 DoOneToAllButSender(source,"FJOIN",params,source);
1340 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
1342 /* process one channel at a time, applying modes. */
1343 char* usr = (char*)params[usernum].c_str();
1344 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1345 * (is this even possible?) */
1348 char permissions = *usr;
1349 switch (permissions)
1353 mode_users[modectr++] = usr;
1354 strlcat(modestring,"o",MAXBUF);
1358 mode_users[modectr++] = usr;
1359 strlcat(modestring,"h",MAXBUF);
1363 mode_users[modectr++] = usr;
1364 strlcat(modestring,"v",MAXBUF);
1367 who = Srv->FindNick(usr);
1370 Srv->JoinUserToChannel(who,channel,key);
1371 if (modectr >= (MAXMODES-1))
1373 /* theres a mode for this user. push them onto the mode queue, and flush it
1374 * if there are more than MAXMODES to go.
1376 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
1378 /* We also always let u-lined clients win, no matter what the TS value */
1379 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1380 Srv->SendMode((const char**)mode_users,modectr,who);
1383 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1389 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1390 /* bouncy bouncy! */
1391 std::deque<std::string> params;
1392 /* modes are now being UNSET... */
1393 *mode_users[1] = '-';
1394 for (unsigned int x = 0; x < modectr; x++)
1398 params.push_back(ConvToStr(us->age));
1400 params.push_back(mode_users[x]);
1402 // tell everyone to bounce the modes. bad modes, bad!
1403 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1405 strcpy(mode_users[1],"+");
1411 /* there werent enough modes built up to flush it during FJOIN,
1412 * or, there are a number left over. flush them out.
1414 if ((modectr > 2) && (who))
1418 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1419 Srv->SendMode((const char**)mode_users,modectr,who);
1422 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1428 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1429 std::deque<std::string> params;
1430 *mode_users[1] = '-';
1431 for (unsigned int x = 0; x < modectr; x++)
1435 params.push_back(ConvToStr(us->age));
1437 params.push_back(mode_users[x]);
1439 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1445 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1447 if (params.size() >= 2)
1449 chanrec* c = Srv->FindChannel(params[0]);
1452 time_t theirTS = atoi(params[1].c_str());
1453 time_t ourTS = c->age;
1454 if (ourTS >= theirTS)
1456 log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1461 DoOneToAllButSender(Srv->GetServerName(),"SYNCTS",params,source);
1466 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1468 if (params.size() < 8)
1470 if (params.size() > 8)
1472 this->WriteLine(":"+Srv->GetServerName()+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1475 // NICK age nick host dhost ident +modes ip :gecos
1477 time_t age = atoi(params[0].c_str());
1479 /* This used to have a pretty craq'y loop doing the same thing,
1480 * now we just let the STL do the hard work (more efficiently)
1482 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1484 const char* tempnick = params[1].c_str();
1485 log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1487 user_hash::iterator iter = clientlist.find(tempnick);
1489 if (iter != clientlist.end())
1492 log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1493 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
1497 clientlist[tempnick] = new userrec();
1498 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
1499 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX-1);
1500 strlcpy(clientlist[tempnick]->host, params[2].c_str(),63);
1501 strlcpy(clientlist[tempnick]->dhost, params[3].c_str(),63);
1502 clientlist[tempnick]->server = FindServerNamePtr(source.c_str());
1503 strlcpy(clientlist[tempnick]->ident, params[4].c_str(),IDENTMAX);
1504 strlcpy(clientlist[tempnick]->fullname, params[7].c_str(),MAXGECOS);
1505 clientlist[tempnick]->registered = REG_ALL;
1506 clientlist[tempnick]->signon = age;
1508 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1510 clientlist[tempnick]->modes[(*v)-65] = 1;
1512 inet_aton(params[6].c_str(),&clientlist[tempnick]->ip4);
1514 WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host, inet_ntoa(clientlist[tempnick]->ip4));
1516 params[7] = ":" + params[7];
1517 DoOneToAllButSender(source,"NICK",params,source);
1519 // Increment the Source Servers User Count..
1520 TreeServer* SourceServer = FindServer(source);
1523 log(DEBUG,"Found source server of %s",clientlist[tempnick]->nick);
1524 SourceServer->AddUserCount();
1530 /* Send one or more FJOINs for a channel of users.
1531 * If the length of a single line is more than 480-NICKMAX
1532 * in length, it is split over multiple lines.
1534 void SendFJoins(TreeServer* Current, chanrec* c)
1536 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1538 std::string individual_halfops = ":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age);
1540 size_t dlen, curlen;
1541 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1543 char* ptr = list + dlen;
1545 CUList *ulist = c->GetUsers();
1546 std::vector<userrec*> specific_halfop;
1547 std::vector<userrec*> specific_voice;
1548 std::string modes = "";
1549 std::string params = "";
1551 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1553 int x = cflags(i->second,c);
1554 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1556 specific_halfop.push_back(i->second);
1558 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1560 specific_voice.push_back(i->second);
1568 else if (x & UCMODE_HOP)
1572 else if (x & UCMODE_VOICE)
1577 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s", n, i->second->nick);
1584 if (curlen > (480-NICKMAX))
1586 this->WriteLine(list);
1587 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1591 for (unsigned int y = 0; y < specific_voice.size(); y++)
1594 params.append(specific_voice[y]->nick).append(" ");
1595 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1597 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1600 params.append(specific_halfop[y]->nick).append(" ");
1601 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1607 this->WriteLine(list);
1608 for (unsigned int y = 0; y < specific_voice.size(); y++)
1611 params.append(specific_voice[y]->nick).append(" ");
1612 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1614 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1617 params.append(specific_halfop[y]->nick).append(" ");
1618 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1621 //std::string modes = "";
1622 //std::string params = "";
1623 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1626 params.append(b->data).append(" ");
1628 /* XXX: Send each channel mode and its params -- we'll need a method for this in ModeHandler? */
1629 //FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1630 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+chanmodes(c,true)+modes+" "+params);
1633 /* Send G, Q, Z and E lines */
1634 void SendXLines(TreeServer* Current)
1637 std::string n = Srv->GetServerName();
1638 const char* sn = n.c_str();
1640 /* Yes, these arent too nice looking, but they get the job done */
1641 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++, iterations++)
1643 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1644 this->WriteLine(data);
1646 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++, iterations++)
1648 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1649 this->WriteLine(data);
1651 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++, iterations++)
1653 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1654 this->WriteLine(data);
1656 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++, iterations++)
1658 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1659 this->WriteLine(data);
1661 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++, iterations++)
1663 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1664 this->WriteLine(data);
1666 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++, iterations++)
1668 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1669 this->WriteLine(data);
1671 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++, iterations++)
1673 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1674 this->WriteLine(data);
1676 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++, iterations++)
1678 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1679 this->WriteLine(data);
1683 /* Send channel modes and topics */
1684 void SendChannelModes(TreeServer* Current)
1687 std::deque<std::string> list;
1689 std::string n = Srv->GetServerName();
1690 const char* sn = n.c_str();
1691 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++, iterations++)
1693 SendFJoins(Current, c->second);
1694 if (*c->second->topic)
1696 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1697 this->WriteLine(data);
1699 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1701 c->second->GetExtList(list);
1702 for (unsigned int j = 0; j < list.size(); j++)
1704 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1709 /* send all users and their oper state/modes */
1710 void SendUsers(TreeServer* Current)
1713 std::deque<std::string> list;
1715 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++, iterations++)
1717 if (u->second->registered == REG_ALL)
1719 snprintf(data,MAXBUF,":%s NICK %lu %s %s %s %s +%s %s :%s",u->second->server,(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->FormatModes(),inet_ntoa(u->second->ip4),u->second->fullname);
1720 this->WriteLine(data);
1721 if (*u->second->oper)
1723 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1725 if (*u->second->awaymsg)
1727 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1729 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1731 u->second->GetExtList(list);
1732 for (unsigned int j = 0; j < list.size(); j++)
1734 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1740 /* This function is called when we want to send a netburst to a local
1741 * server. There is a set order we must do this, because for example
1742 * users require their servers to exist, and channels require their
1743 * users to exist. You get the idea.
1745 void DoBurst(TreeServer* s)
1747 /* The calls here to ServerInstance-> yield the processing
1748 * back to the core so that a large burst is split into at least 6 sections
1751 std::string burst = "BURST "+ConvToStr(time(NULL));
1752 std::string endburst = "ENDBURST";
1753 // Because by the end of the netburst, it could be gone!
1754 std::string name = s->GetName();
1755 Srv->SendOpers("*** Bursting to \2"+name+"\2.");
1756 this->WriteLine(burst);
1757 /* send our version string */
1758 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1759 /* Send server tree */
1760 this->SendServers(TreeRoot,s,1);
1761 /* Send users and their oper status */
1763 /* Send everything else (channel modes, xlines etc) */
1764 this->SendChannelModes(s);
1765 this->SendXLines(s);
1766 FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1767 this->WriteLine(endburst);
1768 Srv->SendOpers("*** Finished bursting to \2"+name+"\2.");
1771 /* This function is called when we receive data from a remote
1772 * server. We buffer the data in a std::string (it doesnt stay
1773 * there for long), reading using InspSocket::Read() which can
1774 * read up to 16 kilobytes in one operation.
1776 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1777 * THE SOCKET OBJECT FOR US.
1779 virtual bool OnDataReady()
1781 char* data = this->Read();
1782 /* Check that the data read is a valid pointer and it has some content */
1785 this->in_buffer.append(data);
1786 /* While there is at least one new line in the buffer,
1787 * do something useful (we hope!) with it.
1789 while (in_buffer.find("\n") != std::string::npos)
1791 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1792 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1793 if (ret.find("\r") != std::string::npos)
1794 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1795 /* Process this one, abort if it
1796 * didnt return true.
1802 memset(result,0,1024);
1804 log(DEBUG,"Original string '%s'",ret.c_str());
1805 /* ERROR + CAPAB is still allowed unencryped */
1806 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1808 int nbytes = from64tobits(out, ret.c_str(), 1024);
1809 if ((nbytes > 0) && (nbytes < 1024))
1811 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1812 ctx_in->Decrypt(out, result, nbytes, 0);
1813 for (int t = 0; t < nbytes; t++)
1814 if (result[t] == '\7') result[t] = 0;
1819 if (!this->ProcessLine(ret))
1821 log(DEBUG,"ProcessLine says no!");
1827 /* EAGAIN returns an empty but non-NULL string, so this
1828 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1830 return (data && !*data);
1833 int WriteLine(std::string line)
1835 log(DEBUG,"OUT: %s",line.c_str());
1839 char result64[10240];
1840 if (this->keylength)
1842 // pad it to the key length
1843 int n = this->keylength - (line.length() % this->keylength);
1846 log(DEBUG,"Append %d chars to line to make it %d long from %d, key length %d",n,n+line.length(),line.length(),this->keylength);
1847 line.append(n,'\7');
1850 unsigned int ll = line.length();
1851 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1852 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1854 //int from64tobits(char *out, const char *in, int maxlen);
1856 return this->Write(line + "\r\n");
1859 /* Handle ERROR command */
1860 bool Error(std::deque<std::string> ¶ms)
1862 if (params.size() < 1)
1864 WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1865 /* we will return false to cause the socket to close. */
1869 /* Because the core won't let users or even SERVERS set +o,
1870 * we use the OPERTYPE command to do this.
1872 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1874 if (params.size() != 1)
1876 log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1879 std::string opertype = params[0];
1880 userrec* u = Srv->FindNick(prefix);
1883 u->modes[UM_OPERATOR] = 1;
1884 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1885 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1890 /* Because Andy insists that services-compatible servers must
1891 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1893 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1895 if (params.size() < 3)
1898 userrec* u = Srv->FindNick(params[0]);
1902 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1905 std::deque<std::string> par;
1906 par.push_back(params[1]);
1907 /* This is not required as one is sent in OnUserPostNick below
1909 //DoOneToMany(u->nick,"NICK",par);
1910 Srv->ChangeUserNick(u,params[1]);
1911 u->age = atoi(params[2].c_str());
1917 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1919 if (params.size() < 2)
1922 userrec* u = Srv->FindNick(params[0]);
1926 Srv->JoinUserToChannel(u,params[1],"");
1927 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1932 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1934 if (params.size() < 1)
1937 std::string servermask = params[0];
1939 if (Srv->MatchText(Srv->GetServerName(),servermask))
1941 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1942 Srv->RehashServer();
1943 ReadConfiguration(false);
1945 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1949 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1951 if (params.size() != 2)
1954 std::string nick = params[0];
1955 userrec* u = Srv->FindNick(prefix);
1956 userrec* who = Srv->FindNick(nick);
1960 /* Prepend kill source, if we don't have one */
1961 std::string sourceserv = prefix;
1964 sourceserv = u->server;
1966 if (*(params[1].c_str()) != '[')
1968 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1970 std::string reason = params[1];
1971 params[1] = ":" + params[1];
1972 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1973 ::Write(who->fd, ":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
1974 Srv->QuitUser(who,reason);
1979 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1981 if (params.size() < 1)
1984 if (params.size() == 1)
1986 TreeServer* ServerSource = FindServer(prefix);
1989 ServerSource->SetPingFlag();
1994 std::string forwardto = params[1];
1995 if (forwardto == Srv->GetServerName())
1998 * this is a PONG for us
1999 * if the prefix is a user, check theyre local, and if they are,
2000 * dump the PONG reply back to their fd. If its a server, do nowt.
2001 * Services might want to send these s->s, but we dont need to yet.
2003 userrec* u = Srv->FindNick(prefix);
2007 WriteServ(u->fd,"PONG %s %s",params[0].c_str(),params[1].c_str());
2012 // not for us, pass it on :)
2013 DoOneToOne(prefix,"PONG",params,forwardto);
2020 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2022 if (params.size() < 3)
2025 TreeServer* ServerSource = FindServer(prefix);
2029 if (params[0] == "*")
2031 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2033 else if (*(params[0].c_str()) == '#')
2035 chanrec* c = Srv->FindChannel(params[0]);
2038 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2041 else if (*(params[0].c_str()) != '#')
2043 userrec* u = Srv->FindNick(params[0]);
2046 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2051 params[2] = ":" + params[2];
2052 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2056 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2058 if (params.size() < 1)
2061 TreeServer* ServerSource = FindServer(prefix);
2065 ServerSource->SetVersion(params[0]);
2067 params[0] = ":" + params[0];
2068 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2072 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2074 if (params.size() < 1)
2077 userrec* u = Srv->FindNick(prefix);
2081 Srv->ChangeHost(u,params[0]);
2082 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2087 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2089 if (params.size() < 6)
2092 bool propogate = false;
2094 switch (*(params[0].c_str()))
2097 propogate = add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2098 zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2101 propogate = add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2102 qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2105 propogate = add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2106 eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2109 propogate = add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2110 gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2113 propogate = add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2116 /* Just in case... */
2117 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2122 /* Send it on its way */
2125 if (atoi(params[4].c_str()))
2127 WriteOpers("*** %s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
2131 WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2133 params[5] = ":" + params[5];
2134 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2136 if (!this->bursting)
2138 log(DEBUG,"Applying lines...");
2139 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2144 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2146 if (params.size() < 1)
2149 userrec* u = Srv->FindNick(prefix);
2153 Srv->ChangeGECOS(u,params[0]);
2154 params[0] = ":" + params[0];
2155 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2160 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2162 if (params.size() < 1)
2165 log(DEBUG,"In IDLE command");
2166 userrec* u = Srv->FindNick(prefix);
2170 log(DEBUG,"USER EXISTS: %s",u->nick);
2171 // an incoming request
2172 if (params.size() == 1)
2174 userrec* x = Srv->FindNick(params[0]);
2175 if ((x) && (IS_LOCAL(x)))
2177 userrec* x = Srv->FindNick(params[0]);
2178 log(DEBUG,"Got IDLE");
2179 char signon[MAXBUF];
2181 log(DEBUG,"Sending back IDLE 3");
2182 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2183 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2184 std::deque<std::string> par;
2185 par.push_back(prefix);
2186 par.push_back(signon);
2187 par.push_back(idle);
2188 // ours, we're done, pass it BACK
2189 DoOneToOne(params[0],"IDLE",par,u->server);
2193 // not ours pass it on
2194 DoOneToOne(prefix,"IDLE",params,x->server);
2197 else if (params.size() == 3)
2199 std::string who_did_the_whois = params[0];
2200 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
2201 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2203 log(DEBUG,"Got final IDLE");
2204 // an incoming reply to a whois we sent out
2205 std::string nick_whoised = prefix;
2206 unsigned long signon = atoi(params[1].c_str());
2207 unsigned long idle = atoi(params[2].c_str());
2208 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2209 do_whois(who_to_send_to,u,signon,idle,nick_whoised.c_str());
2213 // not ours, pass it on
2214 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2221 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2223 if (params.size() < 2)
2226 userrec* u = Srv->FindNick(params[0]);
2233 // push the raw to the user
2234 if (Srv->IsUlined(prefix))
2236 ::Write(u->fd,"%s",params[1].c_str());
2240 log(DEBUG,"PUSH from non-ulined server dropped into the bit-bucket: :%s PUSH %s :%s",prefix.c_str(),params[0].c_str(),params[1].c_str());
2245 // continue the raw onwards
2246 params[1] = ":" + params[1];
2247 DoOneToOne(prefix,"PUSH",params,u->server);
2252 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2254 // :source.server TIME remote.server sendernick
2255 // :remote.server TIME source.server sendernick TS
2256 if (params.size() == 2)
2258 // someone querying our time?
2259 if (Srv->GetServerName() == params[0])
2261 userrec* u = Srv->FindNick(params[1]);
2265 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2266 params.push_back(curtime);
2268 DoOneToOne(Srv->GetServerName(),"TIME",params,params[0]);
2273 // not us, pass it on
2274 userrec* u = Srv->FindNick(params[1]);
2276 DoOneToOne(prefix,"TIME",params,params[0]);
2279 else if (params.size() == 3)
2281 // a response to a previous TIME
2282 userrec* u = Srv->FindNick(params[1]);
2283 if ((u) && (IS_LOCAL(u)))
2285 time_t rawtime = atol(params[2].c_str());
2286 struct tm * timeinfo;
2287 timeinfo = localtime(&rawtime);
2289 snprintf(tms,26,"%s",asctime(timeinfo));
2291 WriteServ(u->fd,"391 %s %s :%s",u->nick,prefix.c_str(),tms);
2296 DoOneToOne(prefix,"TIME",params,u->server);
2302 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2304 if (params.size() < 1)
2307 if (params.size() == 1)
2309 std::string stufftobounce = params[0];
2310 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
2315 std::string forwardto = params[1];
2316 if (forwardto == Srv->GetServerName())
2318 // this is a ping for us, send back PONG to the requesting server
2319 params[1] = params[0];
2320 params[0] = forwardto;
2321 DoOneToOne(forwardto,"PONG",params,params[1]);
2325 // not for us, pass it on :)
2326 DoOneToOne(prefix,"PING",params,forwardto);
2332 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2334 if (params.size() < 4)
2337 std::string servername = params[0];
2338 std::string password = params[1];
2339 // hopcount is not used for a remote server, we calculate this ourselves
2340 std::string description = params[3];
2341 TreeServer* ParentOfThis = FindServer(prefix);
2345 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2348 TreeServer* CheckDupe = FindServer(servername);
2351 this->WriteLine("ERROR :Server "+servername+" already exists!");
2352 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2355 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
2356 ParentOfThis->AddChild(Node);
2357 params[3] = ":" + params[3];
2358 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2359 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2363 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2365 if (params.size() < 4)
2368 irc::string servername = params[0].c_str();
2369 std::string sname = params[0];
2370 std::string password = params[1];
2371 int hops = atoi(params[2].c_str());
2375 this->WriteLine("ERROR :Server too far away for authentication");
2376 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2379 std::string description = params[3];
2380 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2382 if ((x->Name == servername) && (x->RecvPass == password))
2384 TreeServer* CheckDupe = FindServer(sname);
2387 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2388 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2391 // Begin the sync here. this kickstarts the
2392 // other side, waiting in WAIT_AUTH_2 state,
2393 // into starting their burst, as it shows
2394 // that we're happy.
2395 this->LinkState = CONNECTED;
2396 // we should add the details of this server now
2397 // to the servers tree, as a child of the root
2399 TreeServer* Node = new TreeServer(sname,description,TreeRoot,this);
2400 TreeRoot->AddChild(Node);
2401 params[3] = ":" + params[3];
2402 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2403 this->bursting = true;
2404 this->DoBurst(Node);
2408 this->WriteLine("ERROR :Invalid credentials");
2409 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2413 bool Inbound_Server(std::deque<std::string> ¶ms)
2415 if (params.size() < 4)
2418 irc::string servername = params[0].c_str();
2419 std::string sname = params[0];
2420 std::string password = params[1];
2421 int hops = atoi(params[2].c_str());
2425 this->WriteLine("ERROR :Server too far away for authentication");
2426 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2429 std::string description = params[3];
2430 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2432 if ((x->Name == servername) && (x->RecvPass == password))
2434 TreeServer* CheckDupe = FindServer(sname);
2437 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2438 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2441 /* If the config says this link is encrypted, but the remote side
2442 * hasnt bothered to send the AES command before SERVER, then we
2443 * boot them off as we MUST have this connection encrypted.
2445 if ((x->EncryptionKey != "") && (!this->ctx_in))
2447 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2448 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2451 Srv->SendOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2452 this->InboundServerName = sname;
2453 this->InboundDescription = description;
2454 // this is good. Send our details: Our server name and description and hopcount of 0,
2455 // along with the sendpass from this block.
2456 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
2457 // move to the next state, we are now waiting for THEM.
2458 this->LinkState = WAIT_AUTH_2;
2462 this->WriteLine("ERROR :Invalid credentials");
2463 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2467 void Split(std::string line, std::deque<std::string> &n)
2470 irc::tokenstream tokens(line);
2472 while ((param = tokens.GetToken()) != "")
2477 bool ProcessLine(std::string line)
2479 std::deque<std::string> params;
2480 irc::string command;
2486 line = line.substr(0, line.find_first_of("\r\n"));
2488 log(DEBUG,"IN: %s", line.c_str());
2490 this->Split(line.c_str(),params);
2492 if ((params[0][0] == ':') && (params.size() > 1))
2494 prefix = params[0].substr(1);
2498 command = params[0].c_str();
2501 if ((!this->ctx_in) && (command == "AES"))
2503 std::string sserv = params[0];
2504 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2506 if ((x->EncryptionKey != "") && (x->Name == sserv))
2508 this->InitAES(x->EncryptionKey,sserv);
2514 else if ((this->ctx_in) && (command == "AES"))
2516 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2519 switch (this->LinkState)
2524 // Waiting for SERVER command from remote server. Server initiating
2525 // the connection sends the first SERVER command, listening server
2526 // replies with theirs if its happy, then if the initiator is happy,
2527 // it starts to send its net sync, which starts the merge, otherwise
2528 // it sends an ERROR.
2529 if (command == "PASS")
2531 /* Silently ignored */
2533 else if (command == "SERVER")
2535 return this->Inbound_Server(params);
2537 else if (command == "ERROR")
2539 return this->Error(params);
2541 else if (command == "USER")
2543 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2546 else if (command == "CAPAB")
2548 return this->Capab(params);
2550 else if ((command == "U") || (command == "S"))
2552 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2557 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2562 // Waiting for start of other side's netmerge to say they liked our
2564 if (command == "SERVER")
2566 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2570 else if ((command == "U") || (command == "S"))
2572 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2575 else if (command == "BURST")
2579 /* If a time stamp is provided, try and check syncronization */
2580 time_t THEM = atoi(params[0].c_str());
2581 long delta = THEM-time(NULL);
2582 if ((delta < -600) || (delta > 600))
2584 WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
2585 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2588 else if ((delta < -60) || (delta > 60))
2590 WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2593 this->LinkState = CONNECTED;
2594 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
2595 TreeRoot->AddChild(Node);
2597 params.push_back(InboundServerName);
2598 params.push_back("*");
2599 params.push_back("1");
2600 params.push_back(":"+InboundDescription);
2601 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2602 this->bursting = true;
2603 this->DoBurst(Node);
2605 else if (command == "ERROR")
2607 return this->Error(params);
2609 else if (command == "CAPAB")
2611 return this->Capab(params);
2616 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2620 if (command == "SERVER")
2622 // another server we connected to, which was in WAIT_AUTH_1 state,
2623 // has just sent us their credentials. If we get this far, theyre
2624 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2625 // if we're happy with this, we should send our netburst which
2626 // kickstarts the merge.
2627 return this->Outbound_Reply_Server(params);
2629 else if (command == "ERROR")
2631 return this->Error(params);
2635 // This is the 'authenticated' state, when all passwords
2636 // have been exchanged and anything past this point is taken
2641 std::string direction = prefix;
2642 userrec* t = Srv->FindNick(prefix);
2645 direction = t->server;
2647 TreeServer* route_back_again = BestRouteTo(direction);
2648 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2650 if (route_back_again)
2651 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2656 * When there is activity on the socket, reset the ping counter so
2657 * that we're not wasting bandwidth pinging an active server.
2659 route_back_again->SetNextPingTime(time(NULL) + 120);
2660 route_back_again->SetPingFlag();
2663 if (command == "SVSMODE")
2665 /* Services expects us to implement
2666 * SVSMODE. In inspircd its the same as
2671 std::string target = "";
2672 /* Yes, know, this is a mess. Its reasonably fast though as we're
2673 * working with std::string here.
2675 if ((command == "NICK") && (params.size() > 1))
2677 return this->IntroduceClient(prefix,params);
2679 else if (command == "FJOIN")
2681 return this->ForceJoin(prefix,params);
2683 else if (command == "SERVER")
2685 return this->RemoteServer(prefix,params);
2687 else if (command == "ERROR")
2689 return this->Error(params);
2691 else if (command == "OPERTYPE")
2693 return this->OperType(prefix,params);
2695 else if (command == "FMODE")
2697 return this->ForceMode(prefix,params);
2699 else if (command == "KILL")
2701 return this->RemoteKill(prefix,params);
2703 else if (command == "FTOPIC")
2705 return this->ForceTopic(prefix,params);
2707 else if (command == "REHASH")
2709 return this->RemoteRehash(prefix,params);
2711 else if (command == "METADATA")
2713 return this->MetaData(prefix,params);
2715 else if (command == "PING")
2718 * We just got a ping from a server that's bursting.
2719 * This can't be right, so set them to not bursting, and
2720 * apply their lines.
2724 this->bursting = false;
2725 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2729 prefix = this->GetName();
2731 return this->LocalPing(prefix,params);
2733 else if (command == "PONG")
2736 * We just got a pong from a server that's bursting.
2737 * This can't be right, so set them to not bursting, and
2738 * apply their lines.
2742 this->bursting = false;
2743 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2747 prefix = this->GetName();
2749 return this->LocalPong(prefix,params);
2751 else if (command == "VERSION")
2753 return this->ServerVersion(prefix,params);
2755 else if (command == "FHOST")
2757 return this->ChangeHost(prefix,params);
2759 else if (command == "FNAME")
2761 return this->ChangeName(prefix,params);
2763 else if (command == "ADDLINE")
2765 return this->AddLine(prefix,params);
2767 else if (command == "SVSNICK")
2771 prefix = this->GetName();
2773 return this->ForceNick(prefix,params);
2775 else if (command == "IDLE")
2777 return this->Whois(prefix,params);
2779 else if (command == "PUSH")
2781 return this->Push(prefix,params);
2783 else if (command == "TIME")
2785 return this->Time(prefix,params);
2787 else if ((command == "KICK") && (IsServer(prefix)))
2789 std::string sourceserv = this->myhost;
2790 if (params.size() == 3)
2792 userrec* user = Srv->FindNick(params[1]);
2793 chanrec* chan = Srv->FindChannel(params[0]);
2796 server_kick_channel(user,chan,(char*)params[2].c_str(),false);
2799 if (this->InboundServerName != "")
2801 sourceserv = this->InboundServerName;
2803 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2805 else if (command == "SVSJOIN")
2809 prefix = this->GetName();
2811 return this->ServiceJoin(prefix,params);
2813 else if (command == "SQUIT")
2815 if (params.size() == 2)
2817 this->Squit(FindServer(params[0]),params[1]);
2821 else if (command == "ENDBURST")
2823 this->bursting = false;
2824 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2825 std::string sourceserv = this->myhost;
2826 if (this->InboundServerName != "")
2828 sourceserv = this->InboundServerName;
2830 WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2835 // not a special inter-server command.
2836 // Emulate the actual user doing the command,
2837 // this saves us having a huge ugly parser.
2838 userrec* who = Srv->FindNick(prefix);
2839 std::string sourceserv = this->myhost;
2840 if (this->InboundServerName != "")
2842 sourceserv = this->InboundServerName;
2846 if ((command == "NICK") && (params.size() > 0))
2848 /* On nick messages, check that the nick doesnt
2849 * already exist here. If it does, kill their copy,
2852 userrec* x = Srv->FindNick(params[0]);
2853 if ((x) && (x != who))
2855 std::deque<std::string> p;
2856 p.push_back(params[0]);
2857 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2858 DoOneToMany(Srv->GetServerName(),"KILL",p);
2860 p.push_back(prefix);
2861 p.push_back("Nickname collision");
2862 DoOneToMany(Srv->GetServerName(),"KILL",p);
2863 Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2864 userrec* y = Srv->FindNick(prefix);
2867 Srv->QuitUser(y,"Nickname collision");
2869 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2873 target = who->server;
2874 const char* strparams[127];
2875 for (unsigned int q = 0; q < params.size(); q++)
2877 strparams[q] = params[q].c_str();
2879 if (!Srv->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2881 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2887 // its not a user. Its either a server, or somethings screwed up.
2888 if (IsServer(prefix))
2890 target = Srv->GetServerName();
2894 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2898 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2907 virtual std::string GetName()
2909 std::string sourceserv = this->myhost;
2910 if (this->InboundServerName != "")
2912 sourceserv = this->InboundServerName;
2917 virtual void OnTimeout()
2919 if (this->LinkState == CONNECTING)
2921 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2925 virtual void OnClose()
2927 // Connection closed.
2928 // If the connection is fully up (state CONNECTED)
2929 // then propogate a netsplit to all peers.
2930 std::string quitserver = this->myhost;
2931 if (this->InboundServerName != "")
2933 quitserver = this->InboundServerName;
2935 TreeServer* s = FindServer(quitserver);
2938 Squit(s,"Remote host closed the connection");
2940 WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2943 virtual int OnIncomingConnection(int newsock, char* ip)
2945 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2946 * or discovering if this port is the server port, we don't allow connections from any
2947 * IPs for which we don't have a link block.
2950 char resolved_host[MAXBUF];
2951 vector<Link>::iterator i;
2952 for (i = LinkBlocks.begin(); i != LinkBlocks.end(); i++)
2954 if (i->IPAddr == ip)
2959 /* XXX: Fixme: blocks for a very short amount of time,
2960 * we should cache these on rehash/startup
2962 if (CleanAndResolve(resolved_host,i->IPAddr.c_str(),true,1))
2964 if (std::string(resolved_host) == ip)
2973 WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
2977 TreeSocket* s = new TreeSocket(newsock, ip);
2983 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2985 for (unsigned int c = 0; c < list.size(); c++)
2987 if (list[c] == server)
2992 list.push_back(server);
2995 // returns a list of DIRECT servernames for a specific channel
2996 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2998 CUList *ulist = c->GetUsers();
2999 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3001 if (i->second->fd < 0)
3003 TreeServer* best = BestRouteTo(i->second->server);
3005 AddThisServer(best,list);
3011 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3013 TreeServer* omitroute = BestRouteTo(omit);
3014 if ((command == "NOTICE") || (command == "PRIVMSG"))
3016 if (params.size() >= 2)
3019 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3021 params[0] = params[0].substr(1, params[0].length()-1);
3023 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3025 // special routing for private messages/notices
3026 userrec* d = Srv->FindNick(params[0]);
3029 std::deque<std::string> par;
3030 par.push_back(params[0]);
3031 par.push_back(":"+params[1]);
3032 DoOneToOne(prefix,command.c_str(),par,d->server);
3036 else if (*(params[0].c_str()) == '$')
3038 std::deque<std::string> par;
3039 par.push_back(params[0]);
3040 par.push_back(":"+params[1]);
3041 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3046 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3047 chanrec* c = Srv->FindChannel(params[0]);
3050 std::deque<TreeServer*> list;
3051 GetListOfServersForChannel(c,list);
3052 log(DEBUG,"Got a list of %d servers",list.size());
3053 unsigned int lsize = list.size();
3054 for (unsigned int i = 0; i < lsize; i++)
3056 TreeSocket* Sock = list[i]->GetSocket();
3057 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3059 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3060 Sock->WriteLine(data);
3068 unsigned int items = TreeRoot->ChildCount();
3069 for (unsigned int x = 0; x < items; x++)
3071 TreeServer* Route = TreeRoot->GetChild(x);
3072 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3074 TreeSocket* Sock = Route->GetSocket();
3075 Sock->WriteLine(data);
3081 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3083 TreeServer* omitroute = BestRouteTo(omit);
3084 std::string FullLine = ":" + prefix + " " + command;
3085 unsigned int words = params.size();
3086 for (unsigned int x = 0; x < words; x++)
3088 FullLine = FullLine + " " + params[x];
3090 unsigned int items = TreeRoot->ChildCount();
3091 for (unsigned int x = 0; x < items; x++)
3093 TreeServer* Route = TreeRoot->GetChild(x);
3094 // Send the line IF:
3095 // The route has a socket (its a direct connection)
3096 // The route isnt the one to be omitted
3097 // The route isnt the path to the one to be omitted
3098 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3100 TreeSocket* Sock = Route->GetSocket();
3101 Sock->WriteLine(FullLine);
3107 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3109 std::string FullLine = ":" + prefix + " " + command;
3110 unsigned int words = params.size();
3111 for (unsigned int x = 0; x < words; x++)
3113 FullLine = FullLine + " " + params[x];
3115 unsigned int items = TreeRoot->ChildCount();
3116 for (unsigned int x = 0; x < items; x++)
3118 TreeServer* Route = TreeRoot->GetChild(x);
3119 if (Route->GetSocket())
3121 TreeSocket* Sock = Route->GetSocket();
3122 Sock->WriteLine(FullLine);
3128 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3130 TreeServer* Route = BestRouteTo(target);
3133 std::string FullLine = ":" + prefix + " " + command;
3134 unsigned int words = params.size();
3135 for (unsigned int x = 0; x < words; x++)
3137 FullLine = FullLine + " " + params[x];
3139 if (Route->GetSocket())
3141 TreeSocket* Sock = Route->GetSocket();
3142 Sock->WriteLine(FullLine);
3152 std::vector<TreeSocket*> Bindings;
3154 void ReadConfiguration(bool rebind)
3156 Conf = new ConfigReader;
3159 for (int j =0; j < Conf->Enumerate("bind"); j++)
3161 std::string Type = Conf->ReadValue("bind","type",j);
3162 std::string IP = Conf->ReadValue("bind","address",j);
3163 long Port = Conf->ReadInteger("bind","port",j,true);
3164 if (Type == "servers")
3170 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
3171 if (listener->GetState() == I_LISTENING)
3173 Srv->AddSocket(listener);
3174 Bindings.push_back(listener);
3178 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3185 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3186 HideULines = Conf->ReadFlag("options","hideulines",0);
3188 for (int j =0; j < Conf->Enumerate("link"); j++)
3191 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3192 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3193 L.Port = Conf->ReadInteger("link","port",j,true);
3194 L.SendPass = Conf->ReadValue("link","sendpass",j);
3195 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3196 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3197 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3198 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3199 L.NextConnectTime = time(NULL) + L.AutoConnect;
3200 /* Bugfix by brain, do not allow people to enter bad configurations */
3201 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3203 LinkBlocks.push_back(L);
3204 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3210 log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3212 else if (L.RecvPass == "")
3214 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3216 else if (L.SendPass == "")
3218 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3220 else if (L.Name == "")
3222 log(DEFAULT,"Invalid configuration, link tag without a name!");
3226 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3234 class ModuleSpanningTree : public Module
3236 std::vector<TreeSocket*> Bindings;
3239 unsigned int max_local;
3240 unsigned int max_global;
3241 cmd_rconnect* command_rconnect;
3245 ModuleSpanningTree(Server* Me)
3246 : Module::Module(Me), max_local(0), max_global(0)
3251 // Create the root of the tree
3252 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
3254 ReadConfiguration(true);
3256 command_rconnect = new cmd_rconnect(this);
3257 Srv->AddCommand(command_rconnect);
3260 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3262 std::string Parent = TreeRoot->GetName();
3263 if (Current->GetParent())
3265 Parent = Current->GetParent()->GetName();
3267 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3269 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3273 ShowLinks(Current->GetChild(q),user,hops+1);
3278 ShowLinks(Current->GetChild(q),user,hops+1);
3281 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3282 if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
3284 WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? Srv->GetServerName().c_str() : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
3287 int CountLocalServs()
3289 return TreeRoot->ChildCount();
3294 return serverlist.size();
3297 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3299 ShowLinks(TreeRoot,user,0);
3300 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
3304 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3306 unsigned int n_users = usercnt();
3308 /* Only update these when someone wants to see them, more efficient */
3309 if ((unsigned int)local_count() > max_local)
3310 max_local = local_count();
3311 if (n_users > max_global)
3312 max_global = n_users;
3314 WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-usercount_invisible(),usercount_invisible(),this->CountServs());
3315 if (usercount_opers())
3316 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
3317 if (usercount_unknown())
3318 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
3320 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
3321 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
3322 WriteServ(user->fd,"265 %s :Current Local Users: %d Max: %d",user->nick,local_count(),max_local);
3323 WriteServ(user->fd,"266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3327 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3329 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3333 for (int t = 0; t < depth; t++)
3335 matrix[line][t] = ' ';
3338 // For Aligning, we need to work out exactly how deep this thing is, and produce
3339 // a 'Spacer' String to compensate.
3342 memset(spacer,' ',40);
3343 if ((40 - Current->GetName().length() - depth) > 1) {
3344 spacer[40 - Current->GetName().length() - depth] = '\0';
3353 if (clientlist.size() == 0) {
3354 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3359 percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
3361 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3362 totusers += Current->GetUserCount();
3364 strlcpy(&matrix[line][depth],text,80);
3366 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3368 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3372 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3377 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3383 // Ok, prepare to be confused.
3384 // After much mulling over how to approach this, it struck me that
3385 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3386 // keeping track of a ton of ascii characters, and line by line
3387 // under recursion working out where to place them using multiplications
3388 // and divisons, we instead render the map onto a backplane of characters
3389 // (a character matrix), then draw the branches as a series of "L" shapes
3390 // from the nodes. This is not only friendlier on CPU it uses less stack.
3392 void HandleMap(const char** parameters, int pcnt, userrec* user)
3394 // This array represents a virtual screen which we will
3395 // "scratch" draw to, as the console device of an irc
3396 // client does not provide for a proper terminal.
3398 float totservers = 0;
3399 char matrix[128][80];
3400 for (unsigned int t = 0; t < 128; t++)
3402 matrix[t][0] = '\0';
3405 // The only recursive bit is called here.
3406 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3407 // Process each line one by one. The algorithm has a limit of
3408 // 128 servers (which is far more than a spanning tree should have
3409 // anyway, so we're ok). This limit can be raised simply by making
3410 // the character matrix deeper, 128 rows taking 10k of memory.
3411 for (int l = 1; l < line; l++)
3413 // scan across the line looking for the start of the
3414 // servername (the recursive part of the algorithm has placed
3415 // the servers at indented positions depending on what they
3417 int first_nonspace = 0;
3418 while (matrix[l][first_nonspace] == ' ')
3423 // Draw the `- (corner) section: this may be overwritten by
3424 // another L shape passing along the same vertical pane, becoming
3425 // a |- (branch) section instead.
3426 matrix[l][first_nonspace] = '-';
3427 matrix[l][first_nonspace-1] = '`';
3429 // Draw upwards until we hit the parent server, causing possibly
3430 // other corners (`-) to become branches (|-)
3431 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3433 matrix[l2][first_nonspace-1] = '|';
3437 // dump the whole lot to the user. This is the easy bit, honest.
3438 for (int t = 0; t < line; t++)
3440 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
3442 float avg_users = totusers / totservers;
3443 WriteServ(user->fd,"270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
3444 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
3448 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3450 TreeServer* s = FindServerMask(parameters[0]);
3455 WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3458 TreeSocket* sock = s->GetSocket();
3461 log(DEBUG,"Splitting server %s",s->GetName().c_str());
3462 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3463 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3464 Srv->RemoveSocket(sock);
3468 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3473 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3478 int HandleTime(const char** parameters, int pcnt, userrec* user)
3480 if ((IS_LOCAL(user)) && (pcnt))
3482 TreeServer* found = FindServerMask(parameters[0]);
3485 // we dont' override for local server
3486 if (found == TreeRoot)
3489 std::deque<std::string> params;
3490 params.push_back(found->GetName());
3491 params.push_back(user->nick);
3492 DoOneToOne(Srv->GetServerName(),"TIME",params,found->GetName());
3496 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3502 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3504 if ((IS_LOCAL(user)) && (pcnt > 1))
3506 userrec* remote = Srv->FindNick(parameters[1]);
3507 if ((remote) && (remote->fd < 0))
3509 std::deque<std::string> params;
3510 params.push_back(parameters[1]);
3511 DoOneToOne(user->nick,"IDLE",params,remote->server);
3516 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3517 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3524 void DoPingChecks(time_t curtime)
3526 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3528 TreeServer* serv = TreeRoot->GetChild(j);
3529 TreeSocket* sock = serv->GetSocket();
3532 if (curtime >= serv->NextPingTime())
3534 if (serv->AnsweredLastPing())
3536 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
3537 serv->SetNextPingTime(curtime + 120);
3541 // they didnt answer, boot them
3542 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3543 sock->Squit(serv,"Ping timeout");
3544 Srv->RemoveSocket(sock);
3552 void AutoConnectServers(time_t curtime)
3554 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3556 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3558 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3559 x->NextConnectTime = curtime + x->AutoConnect;
3560 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3563 // an autoconnected server is not connected. Check if its time to connect it
3564 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3565 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3566 if (newsocket->GetFd() > -1)
3568 Srv->AddSocket(newsocket);
3572 WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3580 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3582 // we've already checked if pcnt > 0, so this is safe
3583 TreeServer* found = FindServerMask(parameters[0]);
3586 std::string Version = found->GetVersion();
3587 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
3588 if (found == TreeRoot)
3590 std::stringstream out(Config->data005);
3591 std::string token = "";
3592 std::string line5 = "";
3593 int token_counter = 0;
3598 line5 = line5 + token + " ";
3601 if ((token_counter >= 13) || (out.eof() == true))
3603 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
3612 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3617 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3619 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3621 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
3623 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3626 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
3627 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3628 if (newsocket->GetFd() > -1)
3630 Srv->AddSocket(newsocket);
3634 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Error connecting \002%s\002: %s.",user->nick,x->Name.c_str(),strerror(errno));
3641 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
3646 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3650 virtual int OnStats(char statschar, userrec* user)
3652 if (statschar == 'c')
3654 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3656 WriteServ(user->fd,"213 %s C *@%s * %s %d 0 %c%c%c",user->nick,(LinkBlocks[i].HiddenFromStats ? "<hidden>" : LinkBlocks[i].IPAddr).c_str(),LinkBlocks[i].Name.c_str(),LinkBlocks[i].Port,(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-'),(LinkBlocks[i].AutoConnect ? 'a' : '-'),'s');
3657 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
3659 WriteServ(user->fd,"219 %s %c :End of /STATS report",user->nick,statschar);
3660 WriteOpers("*** Notice: Stats '%c' requested by %s (%s@%s)",statschar,user->nick,user->ident,user->host);
3666 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3668 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3672 if (command == "CONNECT")
3674 return this->HandleConnect(parameters,pcnt,user);
3676 else if (command == "SQUIT")
3678 return this->HandleSquit(parameters,pcnt,user);
3680 else if (command == "MAP")
3682 this->HandleMap(parameters,pcnt,user);
3685 else if ((command == "TIME") && (pcnt > 0))
3687 return this->HandleTime(parameters,pcnt,user);
3689 else if (command == "LUSERS")
3691 this->HandleLusers(parameters,pcnt,user);
3694 else if (command == "LINKS")
3696 this->HandleLinks(parameters,pcnt,user);
3699 else if (command == "WHOIS")
3704 return this->HandleRemoteWhois(parameters,pcnt,user);
3707 else if ((command == "VERSION") && (pcnt > 0))
3709 this->HandleVersion(parameters,pcnt,user);
3712 else if (Srv->IsValidModuleCommand(command, pcnt, user))
3714 // this bit of code cleverly routes all module commands
3715 // to all remote severs *automatically* so that modules
3716 // can just handle commands locally, without having
3717 // to have any special provision in place for remote
3718 // commands and linking protocols.
3719 std::deque<std::string> params;
3721 for (int j = 0; j < pcnt; j++)
3723 if (strchr(parameters[j],' '))
3725 params.push_back(":" + std::string(parameters[j]));
3729 params.push_back(std::string(parameters[j]));
3732 log(DEBUG,"Globally route '%s'",command.c_str());
3733 DoOneToMany(user->nick,command,params);
3738 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3740 TreeServer* s = FindServer(servername);
3743 description = s->GetDesc();
3747 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3749 if (IS_LOCAL(source))
3751 std::deque<std::string> params;
3752 params.push_back(dest->nick);
3753 params.push_back(channel->name);
3754 DoOneToMany(source->nick,"INVITE",params);
3758 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3760 std::deque<std::string> params;
3761 params.push_back(chan->name);
3762 params.push_back(":"+topic);
3763 DoOneToMany(user->nick,"TOPIC",params);
3766 virtual void OnWallops(userrec* user, const std::string &text)
3770 std::deque<std::string> params;
3771 params.push_back(":"+text);
3772 DoOneToMany(user->nick,"WALLOPS",params);
3776 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3778 if (target_type == TYPE_USER)
3780 userrec* d = (userrec*)dest;
3781 if ((d->fd < 0) && (IS_LOCAL(user)))
3783 std::deque<std::string> params;
3785 params.push_back(d->nick);
3786 params.push_back(":"+text);
3787 DoOneToOne(user->nick,"NOTICE",params,d->server);
3790 else if (target_type == TYPE_CHANNEL)
3794 chanrec *c = (chanrec*)dest;
3795 std::string cname = c->name;
3797 cname = status + cname;
3798 std::deque<TreeServer*> list;
3799 GetListOfServersForChannel(c,list);
3800 unsigned int ucount = list.size();
3801 for (unsigned int i = 0; i < ucount; i++)
3803 TreeSocket* Sock = list[i]->GetSocket();
3805 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
3809 else if (target_type == TYPE_SERVER)
3813 char* target = (char*)dest;
3814 std::deque<std::string> par;
3815 par.push_back(target);
3816 par.push_back(":"+text);
3817 DoOneToMany(user->nick,"NOTICE",par);
3822 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
3824 if (target_type == TYPE_USER)
3826 // route private messages which are targetted at clients only to the server
3827 // which needs to receive them
3828 userrec* d = (userrec*)dest;
3829 if ((d->fd < 0) && (IS_LOCAL(user)))
3831 std::deque<std::string> params;
3833 params.push_back(d->nick);
3834 params.push_back(":"+text);
3835 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
3838 else if (target_type == TYPE_CHANNEL)
3842 chanrec *c = (chanrec*)dest;
3843 std::string cname = c->name;
3845 cname = status + cname;
3846 std::deque<TreeServer*> list;
3847 GetListOfServersForChannel(c,list);
3848 unsigned int ucount = list.size();
3849 for (unsigned int i = 0; i < ucount; i++)
3851 TreeSocket* Sock = list[i]->GetSocket();
3853 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
3857 else if (target_type == TYPE_SERVER)
3861 char* target = (char*)dest;
3862 std::deque<std::string> par;
3863 par.push_back(target);
3864 par.push_back(":"+text);
3865 DoOneToMany(user->nick,"PRIVMSG",par);
3870 virtual void OnBackgroundTimer(time_t curtime)
3872 AutoConnectServers(curtime);
3873 DoPingChecks(curtime);
3876 virtual void OnUserJoin(userrec* user, chanrec* channel)
3878 // Only do this for local users
3881 std::deque<std::string> params;
3883 params.push_back(channel->name);
3885 if (channel->GetUserCounter() > 1)
3887 // not the first in the channel
3888 DoOneToMany(user->nick,"JOIN",params);
3892 // first in the channel, set up their permissions
3893 // and the channel TS with FJOIN.
3895 snprintf(ts,24,"%lu",(unsigned long)channel->age);
3897 params.push_back(channel->name);
3898 params.push_back(ts);
3899 params.push_back("@"+std::string(user->nick));
3900 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
3905 virtual void OnChangeHost(userrec* user, const std::string &newhost)
3907 // only occurs for local clients
3908 if (user->registered != REG_ALL)
3910 std::deque<std::string> params;
3911 params.push_back(newhost);
3912 DoOneToMany(user->nick,"FHOST",params);
3915 virtual void OnChangeName(userrec* user, const std::string &gecos)
3917 // only occurs for local clients
3918 if (user->registered != REG_ALL)
3920 std::deque<std::string> params;
3921 params.push_back(gecos);
3922 DoOneToMany(user->nick,"FNAME",params);
3925 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
3929 std::deque<std::string> params;
3930 params.push_back(channel->name);
3931 if (partmessage != "")
3932 params.push_back(":"+partmessage);
3933 DoOneToMany(user->nick,"PART",params);
3937 virtual void OnUserConnect(userrec* user)
3939 char agestr[MAXBUF];
3942 std::deque<std::string> params;
3943 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
3944 params.push_back(agestr);
3945 params.push_back(user->nick);
3946 params.push_back(user->host);
3947 params.push_back(user->dhost);
3948 params.push_back(user->ident);
3949 params.push_back("+"+std::string(user->FormatModes()));
3950 params.push_back((char*)inet_ntoa(user->ip4));
3951 params.push_back(":"+std::string(user->fullname));
3952 DoOneToMany(Srv->GetServerName(),"NICK",params);
3954 // User is Local, change needs to be reflected!
3955 TreeServer* SourceServer = FindServer(user->server);
3958 SourceServer->AddUserCount();
3964 virtual void OnUserQuit(userrec* user, const std::string &reason)
3966 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
3968 std::deque<std::string> params;
3969 params.push_back(":"+reason);
3970 DoOneToMany(user->nick,"QUIT",params);
3972 // Regardless, We need to modify the user Counts..
3973 TreeServer* SourceServer = FindServer(user->server);
3976 SourceServer->DelUserCount();
3981 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
3985 std::deque<std::string> params;
3986 params.push_back(user->nick);
3987 DoOneToMany(oldnick,"NICK",params);
3991 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
3993 if ((source) && (IS_LOCAL(source)))
3995 std::deque<std::string> params;
3996 params.push_back(chan->name);
3997 params.push_back(user->nick);
3998 params.push_back(":"+reason);
3999 DoOneToMany(source->nick,"KICK",params);
4003 std::deque<std::string> params;
4004 params.push_back(chan->name);
4005 params.push_back(user->nick);
4006 params.push_back(":"+reason);
4007 DoOneToMany(Srv->GetServerName(),"KICK",params);
4011 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4013 std::deque<std::string> params;
4014 params.push_back(dest->nick);
4015 params.push_back(":"+reason);
4016 DoOneToMany(source->nick,"KILL",params);
4019 virtual void OnRehash(const std::string ¶meter)
4021 if (parameter != "")
4023 std::deque<std::string> params;
4024 params.push_back(parameter);
4025 DoOneToMany(Srv->GetServerName(),"REHASH",params);
4027 if (Srv->MatchText(Srv->GetServerName(),parameter))
4029 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
4030 Srv->RehashServer();
4033 ReadConfiguration(false);
4036 // note: the protocol does not allow direct umode +o except
4037 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4039 virtual void OnOper(userrec* user, const std::string &opertype)
4043 std::deque<std::string> params;
4044 params.push_back(opertype);
4045 DoOneToMany(user->nick,"OPERTYPE",params);
4049 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4051 if (IS_LOCAL(source))
4054 snprintf(type,8,"%cLINE",linetype);
4055 std::string stype = type;
4058 char sduration[MAXBUF];
4059 snprintf(sduration,MAXBUF,"%ld",duration);
4060 std::deque<std::string> params;
4061 params.push_back(host);
4062 params.push_back(sduration);
4063 params.push_back(":"+reason);
4064 DoOneToMany(source->nick,stype,params);
4068 std::deque<std::string> params;
4069 params.push_back(host);
4070 DoOneToMany(source->nick,stype,params);
4075 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4077 OnLine(source,hostmask,true,'G',duration,reason);
4080 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4082 OnLine(source,ipmask,true,'Z',duration,reason);
4085 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4087 OnLine(source,nickmask,true,'Q',duration,reason);
4090 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4092 OnLine(source,hostmask,true,'E',duration,reason);
4095 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4097 OnLine(source,hostmask,false,'G',0,"");
4100 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4102 OnLine(source,ipmask,false,'Z',0,"");
4105 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4107 OnLine(source,nickmask,false,'Q',0,"");
4110 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4112 OnLine(source,hostmask,false,'E',0,"");
4115 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4117 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4119 if (target_type == TYPE_USER)
4121 userrec* u = (userrec*)dest;
4122 std::deque<std::string> params;
4123 params.push_back(u->nick);
4124 params.push_back(text);
4125 DoOneToMany(user->nick,"MODE",params);
4129 chanrec* c = (chanrec*)dest;
4130 std::deque<std::string> params;
4131 params.push_back(c->name);
4132 params.push_back(text);
4133 DoOneToMany(user->nick,"MODE",params);
4138 virtual void OnSetAway(userrec* user)
4142 std::deque<std::string> params;
4143 params.push_back(":"+std::string(user->awaymsg));
4144 DoOneToMany(user->nick,"AWAY",params);
4148 virtual void OnCancelAway(userrec* user)
4152 std::deque<std::string> params;
4154 DoOneToMany(user->nick,"AWAY",params);
4158 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4160 TreeSocket* s = (TreeSocket*)opaque;
4163 if (target_type == TYPE_USER)
4165 userrec* u = (userrec*)target;
4166 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4170 chanrec* c = (chanrec*)target;
4171 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4176 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4178 TreeSocket* s = (TreeSocket*)opaque;
4181 if (target_type == TYPE_USER)
4183 userrec* u = (userrec*)target;
4184 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
4186 else if (target_type == TYPE_OTHER)
4188 s->WriteLine(":"+Srv->GetServerName()+" METADATA * "+extname+" :"+extdata);
4190 else if (target_type == TYPE_CHANNEL)
4192 chanrec* c = (chanrec*)target;
4193 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
4198 virtual void OnEvent(Event* event)
4200 if (event->GetEventID() == "send_metadata")
4202 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4203 if (params->size() < 3)
4205 (*params)[2] = ":" + (*params)[2];
4206 DoOneToMany(Srv->GetServerName(),"METADATA",*params);
4208 else if (event->GetEventID() == "send_mode")
4210 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4211 if (params->size() < 2)
4213 // Insert the TS value of the object, either userrec or chanrec
4215 userrec* a = Srv->FindNick((*params)[0]);
4222 chanrec* a = Srv->FindChannel((*params)[0]);
4228 params->insert(params->begin() + 1,ConvToStr(ourTS));
4229 DoOneToMany(Srv->GetServerName(),"FMODE",*params);
4233 virtual ~ModuleSpanningTree()
4237 virtual Version GetVersion()
4239 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4242 void Implements(char* List)
4244 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4245 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4246 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4247 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4248 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4249 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4250 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4253 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4254 * so that any activity it sees is FINAL, e.g. we arent going to send out
4255 * a NICK message before m_cloaking has finished putting the +x on the user,
4257 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4258 * the module call queue.
4260 Priority Prioritize()
4262 return PRIORITY_LAST;
4267 class ModuleSpanningTreeFactory : public ModuleFactory
4270 ModuleSpanningTreeFactory()
4274 ~ModuleSpanningTreeFactory()
4278 virtual Module * CreateModule(Server* Me)
4280 TreeProtocolModule = new ModuleSpanningTree(Me);
4281 return TreeProtocolModule;
4287 extern "C" void * init_module( void )
4289 return new ModuleSpanningTreeFactory;