1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * Inspire is copyright (C) 2002-2005 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 <ext/hash_map>
36 #include "helperfuncs.h"
38 #include "inspstring.h"
43 #include "cull_list.h"
47 #define nspace __gnu_cxx
53 * The server list in InspIRCd is maintained as two structures
54 * which hold the data in different ways. Most of the time, we
55 * want to very quicky obtain three pieces of information:
57 * (1) The information on a server
58 * (2) The information on the server we must send data through
59 * to actually REACH the server we're after
60 * (3) Potentially, the child/parent objects of this server
62 * The InspIRCd spanning protocol provides easy access to these
63 * by storing the data firstly in a recursive structure, where
64 * each item references its parent item, and a dynamic list
65 * of child items, and another structure which stores the items
66 * hashed, linearly. This means that if we want to find a server
67 * by name quickly, we can look it up in the hash, avoiding
68 * any O(n) lookups. If however, during a split or sync, we want
69 * to apply an operation to a server, and any of its child objects
70 * we can resort to recursion to walk the tree structure.
73 class ModuleSpanningTree;
74 static ModuleSpanningTree* TreeProtocolModule;
76 extern std::vector<Module*> modules;
77 extern std::vector<ircd_module*> factory;
80 /* Any socket can have one of five states at any one time.
81 * The LISTENER state indicates a socket which is listening
82 * for connections. It cannot receive data itself, only incoming
84 * The CONNECTING state indicates an outbound socket which is
85 * waiting to be writeable.
86 * The WAIT_AUTH_1 state indicates the socket is outbound and
87 * has successfully connected, but has not yet sent and received
89 * The WAIT_AUTH_2 state indicates that the socket is inbound
90 * (allocated by a LISTENER) but has not yet sent and received
92 * The CONNECTED state represents a fully authorized, fully
95 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
97 /* We need to import these from the core for use in netbursts */
98 /*typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, irc::StrHashComp> user_hash;
99 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, irc::StrHashComp> chan_hash;*/
100 extern user_hash clientlist;
101 extern chan_hash chanlist;
103 /* Foward declarations */
107 /* This variable represents the root of the server tree
108 * (for all intents and purposes, it's us)
110 TreeServer *TreeRoot;
114 /* This hash_map holds the hash equivalent of the server
115 * tree, used for rapid linear lookups.
117 typedef nspace::hash_map<std::string, TreeServer*> server_hash;
118 server_hash serverlist;
120 /* More forward declarations */
121 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
122 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
123 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
124 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, std::string command, std::deque<std::string> ¶ms);
125 void ReadConfiguration(bool rebind);
127 /* Imported from xline.cpp for use during netburst */
128 extern std::vector<KLine> klines;
129 extern std::vector<GLine> glines;
130 extern std::vector<ZLine> zlines;
131 extern std::vector<QLine> qlines;
132 extern std::vector<ELine> elines;
133 extern std::vector<KLine> pklines;
134 extern std::vector<GLine> pglines;
135 extern std::vector<ZLine> pzlines;
136 extern std::vector<QLine> pqlines;
137 extern std::vector<ELine> pelines;
139 /* Each server in the tree is represented by one class of
140 * type TreeServer. A locally connected TreeServer can
141 * have a class of type TreeSocket associated with it, for
142 * remote servers, the TreeSocket entry will be NULL.
143 * Each server also maintains a pointer to its parent
144 * (NULL if this server is ours, at the top of the tree)
145 * and a pointer to its "Route" (see the comments in the
146 * constructors below), and also a dynamic list of pointers
147 * to its children which can be iterated recursively
148 * if required. Creating or deleting objects of type
149 * TreeServer automatically maintains the hash_map of
150 * TreeServer items, deleting and inserting them as they
151 * are created and destroyed.
156 TreeServer* Parent; /* Parent entry */
157 TreeServer* Route; /* Route entry */
158 std::vector<TreeServer*> Children; /* List of child objects */
159 std::string ServerName; /* Server's name */
160 std::string ServerDesc; /* Server's description */
161 std::string VersionString; /* Version string or empty string */
162 int UserCount; /* Not used in this version */
163 int OperCount; /* Not used in this version */
164 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
165 time_t NextPing; /* After this time, the server should be PINGed*/
166 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
170 /* We don't use this constructor. Its a dummy, and won't cause any insertion
171 * of the TreeServer into the hash_map. See below for the two we DO use.
179 UserCount = OperCount = 0;
180 VersionString = Srv->GetVersion();
183 /* We use this constructor only to create the 'root' item, TreeRoot, which
184 * represents our own server. Therefore, it has no route, no parent, and
185 * no socket associated with it. Its version string is our own local version.
187 TreeServer(std::string Name, std::string Desc) : ServerName(Name), ServerDesc(Desc)
191 UserCount = OperCount = 0;
192 VersionString = Srv->GetVersion();
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), ServerDesc(Desc), Socket(Sock)
204 UserCount = OperCount = 0;
205 this->SetNextPingTime(time(NULL) + 60);
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 /* This method is used to add the structure to the
263 * hash_map for linear searches. It is only called
264 * by the constructors.
268 server_hash::iterator iter;
269 iter = serverlist.find(this->ServerName);
270 if (iter == serverlist.end())
271 serverlist[this->ServerName] = this;
274 /* This method removes the reference to this object
275 * from the hash_map which is used for linear searches.
276 * It is only called by the default destructor.
280 server_hash::iterator iter;
281 iter = serverlist.find(this->ServerName);
282 if (iter != serverlist.end())
283 serverlist.erase(iter);
286 /* These accessors etc should be pretty self-
290 TreeServer* GetRoute()
295 std::string GetName()
297 return this->ServerName;
300 std::string GetDesc()
302 return this->ServerDesc;
305 std::string GetVersion()
307 return this->VersionString;
310 void SetNextPingTime(time_t t)
313 LastPingWasGood = false;
316 time_t NextPingTime()
318 return this->NextPing;
321 bool AnsweredLastPing()
323 return LastPingWasGood;
328 LastPingWasGood = true;
333 return this->UserCount;
338 return this->OperCount;
341 TreeSocket* GetSocket()
346 TreeServer* GetParent()
351 void SetVersion(std::string Version)
353 VersionString = Version;
356 unsigned int ChildCount()
358 return Children.size();
361 TreeServer* GetChild(unsigned int n)
363 if (n < Children.size())
365 /* Make sure they cant request
366 * an out-of-range object. After
367 * all we know what these programmer
368 * types are like *grin*.
378 void AddChild(TreeServer* Child)
380 Children.push_back(Child);
383 bool DelChild(TreeServer* Child)
385 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
396 /* Removes child nodes of this node, and of that node, etc etc.
397 * This is used during netsplits to automatically tidy up the
398 * server tree. It is slow, we don't use it for much else.
402 bool stillchildren = true;
403 while (stillchildren)
405 stillchildren = false;
406 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
408 TreeServer* s = (TreeServer*)*a;
412 stillchildren = true;
421 /* We'd better tidy up after ourselves, eh? */
422 this->DelHashEntry();
426 /* The Link class might as well be a struct,
427 * but this is C++ and we don't believe in structs (!).
428 * It holds the entire information of one <link>
429 * tag from the main config file. We maintain a list
430 * of them, and populate the list on rehash/load.
439 std::string SendPass;
440 std::string RecvPass;
441 unsigned long AutoConnect;
442 time_t NextConnectTime;
443 std::string EncryptionKey;
446 /* The usual stuff for inspircd modules,
447 * plus the vector of Link classes which we
448 * use to store the <link> tags from the config
452 std::vector<Link> LinkBlocks;
454 /* Yay for fast searches!
455 * This is hundreds of times faster than recursion
456 * or even scanning a linked list, especially when
457 * there are more than a few servers to deal with.
460 TreeServer* FindServer(std::string ServerName)
462 server_hash::iterator iter;
463 iter = serverlist.find(ServerName);
464 if (iter != serverlist.end())
474 /* Returns the locally connected server we must route a
475 * message through to reach server 'ServerName'. This
476 * only applies to one-to-one and not one-to-many routing.
477 * See the comments for the constructor of TreeServer
480 TreeServer* BestRouteTo(std::string ServerName)
482 if (ServerName.c_str() == TreeRoot->GetName())
484 TreeServer* Found = FindServer(ServerName);
487 return Found->GetRoute();
495 /* Find the first server matching a given glob mask.
496 * Theres no find-using-glob method of hash_map [awwww :-(]
497 * so instead, we iterate over the list using an iterator
498 * and match each one until we get a hit. Yes its slow,
501 TreeServer* FindServerMask(std::string ServerName)
503 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
505 if (Srv->MatchText(i->first,ServerName))
511 /* A convenient wrapper that returns true if a server exists */
512 bool IsServer(std::string ServerName)
514 return (FindServer(ServerName) != NULL);
517 /* Every SERVER connection inbound or outbound is represented by
518 * an object of type TreeSocket.
519 * TreeSockets, being inherited from InspSocket, can be tied into
520 * the core socket engine, and we cn therefore receive activity events
521 * for them, just like activex objects on speed. (yes really, that
522 * is a technical term!) Each of these which relates to a locally
523 * connected server is assocated with it, by hooking it onto a
524 * TreeSocket class using its constructor. In this way, we can
525 * maintain a list of servers, some of which are directly connected,
526 * some of which are not.
529 class TreeSocket : public InspSocket
532 std::string in_buffer;
533 ServerState LinkState;
534 std::string InboundServerName;
535 std::string InboundDescription;
537 int num_lost_servers;
539 bool LastPingWasGood;
542 unsigned int keylength;
546 /* Because most of the I/O gubbins are encapsulated within
547 * InspSocket, we just call the superclass constructor for
548 * most of the action, and append a few of our own values
551 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
552 : InspSocket(host, port, listening, maxtime)
555 this->LinkState = LISTENER;
558 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
559 : InspSocket(host, port, listening, maxtime)
562 this->LinkState = CONNECTING;
565 /* When a listening socket gives us a new file descriptor,
566 * we must associate it with a socket without creating a new
567 * connection. This constructor is used for this purpose.
569 TreeSocket(int newfd, char* ip)
570 : InspSocket(newfd, ip)
572 this->LinkState = WAIT_AUTH_1;
575 void InitAES(std::string key,std::string SName)
581 log(DEBUG,"Initialized AES key %s",key.c_str());
582 // key must be 16, 24, 32 etc bytes (multiple of 8)
583 keylength = key.length();
584 if (!(keylength == 16 || keylength == 24 || keylength == 32))
586 WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
587 log(DEBUG,"Key length not 16, 24 or 32 characters!");
591 WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
592 ctx->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\
593 \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);
597 /* When an outbound connection finishes connecting, we receive
598 * this event, and must send our SERVER string to the other
599 * side. If the other side is happy, as outlined in the server
600 * to server docs on the inspircd.org site, the other side
601 * will then send back its own server string.
603 virtual bool OnConnected()
605 if (this->LinkState == CONNECTING)
607 Srv->SendOpers("*** Connection to "+myhost+"["+this->GetIP()+"] established.");
608 /* we do not need to change state here. */
609 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
611 if (x->Name == this->myhost)
613 if (x->EncryptionKey != "")
615 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
617 WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
621 this->WriteLine("AES "+Srv->GetServerName());
622 this->InitAES(x->EncryptionKey,x->Name);
625 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
626 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
631 /* There is a (remote) chance that between the /CONNECT and the connection
632 * being accepted, some muppet has removed the <link> block and rehashed.
633 * If that happens the connection hangs here until it's closed. Unlikely
634 * and rather harmless.
639 virtual void OnError(InspSocketError e)
641 /* We don't handle this method, because all our
642 * dirty work is done in OnClose() (see below)
643 * which is still called on error conditions too.
647 virtual int OnDisconnect()
649 /* For the same reason as above, we don't
650 * handle OnDisconnect()
655 /* Recursively send the server tree with distances as hops.
656 * This is used during network burst to inform the other server
657 * (and any of ITS servers too) of what servers we know about.
658 * If at any point any of these servers already exist on the other
659 * end, our connection may be terminated. The hopcounts given
660 * by this function are relative, this doesn't matter so long as
661 * they are all >1, as all the remote servers re-calculate them
662 * to be relative too, with themselves as hop 0.
664 void SendServers(TreeServer* Current, TreeServer* s, int hops)
667 for (unsigned int q = 0; q < Current->ChildCount(); q++)
669 TreeServer* recursive_server = Current->GetChild(q);
670 if (recursive_server != s)
672 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
673 this->WriteLine(command);
674 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
675 /* down to next level */
676 this->SendServers(recursive_server, s, hops+1);
681 /* This function forces this server to quit, removing this server
682 * and any users on it (and servers and users below that, etc etc).
683 * It's very slow and pretty clunky, but luckily unless your network
684 * is having a REAL bad hair day, this function shouldnt be called
685 * too many times a month ;-)
687 void SquitServer(TreeServer* Current, CullList* Goners)
689 /* recursively squit the servers attached to 'Current'.
690 * We're going backwards so we don't remove users
691 * while we still need them ;)
693 for (unsigned int q = 0; q < Current->ChildCount(); q++)
695 TreeServer* recursive_server = Current->GetChild(q);
696 this->SquitServer(recursive_server,Goners);
698 /* Now we've whacked the kids, whack self */
700 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
702 if (!strcasecmp(u->second->server,Current->GetName().c_str()))
704 std::string qreason = Current->GetName()+" "+std::string(Srv->GetServerName());
705 Goners->AddItem(u->second,qreason);
711 /* This is a wrapper function for SquitServer above, which
712 * does some validation first and passes on the SQUIT to all
713 * other remaining servers.
715 void Squit(TreeServer* Current,std::string reason)
719 std::deque<std::string> params;
720 params.push_back(Current->GetName());
721 params.push_back(":"+reason);
722 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
723 if (Current->GetParent() == TreeRoot)
725 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
729 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
731 num_lost_servers = 0;
733 CullList* Goners = new CullList();
734 SquitServer(Current, Goners);
737 Current->GetParent()->DelChild(Current);
740 WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
744 log(DEFAULT,"Squit from unknown server");
749 bool ForceMode(std::string source, std::deque<std::string> params)
751 userrec* who = new userrec;
752 who->fd = FD_MAGIC_NUMBER;
753 if (params.size() < 2)
756 for (unsigned int q = 0; q < params.size(); q++)
758 modelist[q] = (char*)params[q].c_str();
760 Srv->SendMode(modelist,params.size(),who);
761 DoOneToAllButSender(source,"FMODE",params,source);
767 bool ForceTopic(std::string source, std::deque<std::string> params)
769 if (params.size() != 4)
771 std::string channel = params[0];
772 time_t ts = atoi(params[1].c_str());
773 std::string setby = params[2];
774 std::string topic = params[3];
776 chanrec* c = Srv->FindChannel(channel);
779 if ((ts >= c->topicset) || (!*c->topic))
781 std::string oldtopic = c->topic;
782 strlcpy(c->topic,topic.c_str(),MAXTOPIC);
783 strlcpy(c->setby,setby.c_str(),NICKMAX);
785 /* if the topic text is the same as the current topic,
786 * dont bother to send the TOPIC command out, just silently
787 * update the set time and set nick.
789 if (oldtopic != topic)
790 WriteChannelWithServ((char*)source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
795 /* all done, send it on its way */
796 params[3] = ":" + params[3];
797 DoOneToAllButSender(source,"FTOPIC",params,source);
802 /* FJOIN, similar to unreal SJOIN */
803 bool ForceJoin(std::string source, std::deque<std::string> params)
805 if (params.size() < 3)
809 char modestring[MAXBUF];
810 char* mode_users[127];
811 mode_users[0] = first;
812 mode_users[1] = modestring;
813 strcpy(mode_users[1],"+");
814 unsigned int modectr = 2;
817 std::string channel = params[0];
818 time_t TS = atoi(params[1].c_str());
821 chanrec* chan = Srv->FindChannel(channel);
826 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
828 /* default is a high value, which if we dont have this
829 * channel will let the other side apply their modes.
831 time_t ourTS = time(NULL)+600;
832 chanrec* us = Srv->FindChannel(channel);
838 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
840 /* do this first, so our mode reversals are correctly received by other servers
841 * if there is a TS collision.
843 DoOneToAllButSender(source,"FJOIN",params,source);
845 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
847 /* process one channel at a time, applying modes. */
848 char* usr = (char*)params[usernum].c_str();
849 char permissions = *usr;
854 mode_users[modectr++] = usr;
855 strlcat(modestring,"o",MAXBUF);
859 mode_users[modectr++] = usr;
860 strlcat(modestring,"h",MAXBUF);
864 mode_users[modectr++] = usr;
865 strlcat(modestring,"v",MAXBUF);
868 who = Srv->FindNick(usr);
871 Srv->JoinUserToChannel(who,channel,key);
872 if (modectr >= (MAXMODES-1))
874 /* theres a mode for this user. push them onto the mode queue, and flush it
875 * if there are more than MAXMODES to go.
877 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
879 /* We also always let u-lined clients win, no matter what the TS value */
880 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
881 Srv->SendMode(mode_users,modectr,who);
885 log(DEBUG,"Their channel newer than ours, bouncing their modes");
887 std::deque<std::string> params;
888 /* modes are now being UNSET... */
889 *mode_users[1] = '-';
890 for (unsigned int x = 0; x < modectr; x++)
892 params.push_back(mode_users[x]);
894 // tell everyone to bounce the modes. bad modes, bad!
895 DoOneToMany(Srv->GetServerName(),"FMODE",params);
897 strcpy(mode_users[1],"+");
902 /* there werent enough modes built up to flush it during FJOIN,
903 * or, there are a number left over. flush them out.
905 if ((modectr > 2) && (who))
909 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
910 Srv->SendMode(mode_users,modectr,who);
914 log(DEBUG,"Their channel newer than ours, bouncing their modes");
915 std::deque<std::string> params;
916 *mode_users[1] = '-';
917 for (unsigned int x = 0; x < modectr; x++)
919 params.push_back(mode_users[x]);
921 DoOneToMany(Srv->GetServerName(),"FMODE",params);
928 bool IntroduceClient(std::string source, std::deque<std::string> params)
930 if (params.size() < 8)
932 // NICK age nick host dhost ident +modes ip :gecos
934 std::string nick = params[1];
935 std::string host = params[2];
936 std::string dhost = params[3];
937 std::string ident = params[4];
938 time_t age = atoi(params[0].c_str());
939 std::string modes = params[5];
940 while (*(modes.c_str()) == '+')
942 char* m = (char*)modes.c_str();
946 std::string ip = params[6];
947 std::string gecos = params[7];
948 char* tempnick = (char*)nick.c_str();
949 log(DEBUG,"Introduce client %s!%s@%s",tempnick,ident.c_str(),host.c_str());
951 user_hash::iterator iter;
952 iter = clientlist.find(tempnick);
953 if (iter != clientlist.end())
956 log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,ident.c_str(),host.c_str(),(unsigned long)age,(unsigned long)iter->second->age);
957 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
961 clientlist[tempnick] = new userrec();
962 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
963 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX);
964 strlcpy(clientlist[tempnick]->host, host.c_str(),160);
965 strlcpy(clientlist[tempnick]->dhost, dhost.c_str(),160);
966 clientlist[tempnick]->server = (char*)FindServerNamePtr(source.c_str());
967 strlcpy(clientlist[tempnick]->ident, ident.c_str(),IDENTMAX);
968 strlcpy(clientlist[tempnick]->fullname, gecos.c_str(),MAXGECOS);
969 clientlist[tempnick]->registered = 7;
970 clientlist[tempnick]->signon = age;
971 strlcpy(clientlist[tempnick]->modes, modes.c_str(),53);
972 strlcpy(clientlist[tempnick]->ip,ip.c_str(),16);
977 for (int i = 0; i < MAXCHANS; i++)
978 clientlist[tempnick]->chans.push_back(a);
982 WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host,clientlist[tempnick]->ip);
984 params[7] = ":" + params[7];
985 DoOneToAllButSender(source,"NICK",params,source);
989 /* Send one or more FJOINs for a channel of users.
990 * If the length of a single line is more than 480-NICKMAX
991 * in length, it is split over multiple lines.
993 void SendFJoins(TreeServer* Current, chanrec* c)
995 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
997 snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
998 std::vector<char*> *ulist = c->GetUsers();
999 for (unsigned int i = 0; i < ulist->size(); i++)
1001 char* o = (*ulist)[i];
1002 userrec* otheruser = (userrec*)o;
1003 strlcat(list," ",MAXBUF);
1004 strlcat(list,cmode(otheruser,c),MAXBUF);
1005 strlcat(list,otheruser->nick,MAXBUF);
1006 if (strlen(list)>(480-NICKMAX))
1008 log(DEBUG,"FJOIN line wrapped");
1009 this->WriteLine(list);
1010 snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1013 if (list[strlen(list)-1] != ':')
1015 log(DEBUG,"Final FJOIN line");
1016 this->WriteLine(list);
1020 /* Send G, Q, Z and E lines */
1021 void SendXLines(TreeServer* Current)
1024 /* Yes, these arent too nice looking, but they get the job done */
1025 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
1027 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1028 this->WriteLine(data);
1030 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
1032 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1033 this->WriteLine(data);
1035 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
1037 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1038 this->WriteLine(data);
1040 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
1042 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1043 this->WriteLine(data);
1045 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
1047 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1048 this->WriteLine(data);
1050 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
1052 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1053 this->WriteLine(data);
1055 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
1057 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1058 this->WriteLine(data);
1060 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
1062 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",Srv->GetServerName().c_str(),i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1063 this->WriteLine(data);
1067 /* Send channel modes and topics */
1068 void SendChannelModes(TreeServer* Current)
1071 std::deque<std::string> list;
1072 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
1074 SendFJoins(Current, c->second);
1075 snprintf(data,MAXBUF,":%s FMODE %s +%s",Srv->GetServerName().c_str(),c->second->name,chanmodes(c->second));
1076 this->WriteLine(data);
1077 if (*c->second->topic)
1079 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",Srv->GetServerName().c_str(),c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1080 this->WriteLine(data);
1082 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
1084 snprintf(data,MAXBUF,":%s FMODE %s +b %s",Srv->GetServerName().c_str(),c->second->name,b->data);
1085 this->WriteLine(data);
1087 FOREACH_MOD OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this);
1089 c->second->GetExtList(list);
1090 for (unsigned int j = 0; j < list.size(); j++)
1092 FOREACH_MOD OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]);
1097 /* send all users and their oper state/modes */
1098 void SendUsers(TreeServer* Current)
1101 std::deque<std::string> list;
1102 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
1104 if (u->second->registered == 7)
1106 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->modes,u->second->ip,u->second->fullname);
1107 this->WriteLine(data);
1108 if (strchr(u->second->modes,'o'))
1110 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1112 FOREACH_MOD OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this);
1114 u->second->GetExtList(list);
1115 for (unsigned int j = 0; j < list.size(); j++)
1117 FOREACH_MOD OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]);
1123 /* This function is called when we want to send a netburst to a local
1124 * server. There is a set order we must do this, because for example
1125 * users require their servers to exist, and channels require their
1126 * users to exist. You get the idea.
1128 void DoBurst(TreeServer* s)
1130 Srv->SendOpers("*** Bursting to \2"+s->GetName()+"\2.");
1131 this->WriteLine("BURST");
1132 /* send our version string */
1133 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1134 /* Send server tree */
1135 this->SendServers(TreeRoot,s,1);
1136 /* Send users and their oper status */
1138 /* Send everything else (channel modes, xlines etc) */
1139 this->SendChannelModes(s);
1140 this->SendXLines(s);
1141 this->WriteLine("ENDBURST");
1142 Srv->SendOpers("*** Finished bursting to \2"+s->GetName()+"\2.");
1145 /* This function is called when we receive data from a remote
1146 * server. We buffer the data in a std::string (it doesnt stay
1147 * there for long), reading using InspSocket::Read() which can
1148 * read up to 16 kilobytes in one operation.
1150 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1151 * THE SOCKET OBJECT FOR US.
1153 virtual bool OnDataReady()
1155 char* data = this->Read();
1158 this->in_buffer += data;
1159 /* While there is at least one new line in the buffer,
1160 * do something useful (we hope!) with it.
1162 while (in_buffer.find("\n") != std::string::npos)
1164 char* line = (char*)in_buffer.c_str();
1165 std::string ret = "";
1166 while ((*line != '\n') && (strlen(line)))
1171 if ((*line == '\n') || (*line == '\r'))
1174 /* Process this one, abort if it
1175 * didnt return true.
1181 log(DEBUG,"Original string '%s'",ret.c_str());
1182 int nbytes = from64tobits(out, ret.c_str(), 1024);
1183 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1184 ctx->Decrypt(out, result, nbytes, 0);
1185 for (int t = 0; t < nbytes; t++)
1186 if (result[t] == '\7') result[t] = 0;
1189 if (!this->ProcessLine(ret))
1195 return (data != NULL);
1198 int WriteLine(std::string line)
1200 log(DEBUG,"OUT: %s",line.c_str());
1203 log(DEBUG,"AES context");
1205 char result64[1024];
1206 if (this->keylength)
1208 while (line.length() % this->keylength != 0)
1210 // pad it to be a multiple of the key length
1214 ctx->Encrypt(line.c_str(), result, line.length(),0);
1215 to64frombits((unsigned char*)result64,
1216 (unsigned char*)result,
1219 log(DEBUG,"Encrypted: %s",line.c_str());
1220 //int from64tobits(char *out, const char *in, int maxlen);
1222 return this->Write(line + "\r\n");
1225 /* Handle ERROR command */
1226 bool Error(std::deque<std::string> params)
1228 if (params.size() < 1)
1230 std::string Errmsg = params[0];
1231 std::string SName = myhost;
1232 if (InboundServerName != "")
1234 SName = InboundServerName;
1236 Srv->SendOpers("*** ERROR from "+SName+": "+Errmsg);
1237 /* we will return false to cause the socket to close.
1242 /* Because the core won't let users or even SERVERS set +o,
1243 * we use the OPERTYPE command to do this.
1245 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1247 if (params.size() != 1)
1249 std::string opertype = params[0];
1250 userrec* u = Srv->FindNick(prefix);
1253 strlcpy(u->oper,opertype.c_str(),NICKMAX);
1254 if (!strchr(u->modes,'o'))
1256 strcat(u->modes,"o");
1258 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1263 /* Because Andy insists that services-compatible servers must
1264 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1266 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1268 if (params.size() < 3)
1270 userrec* u = Srv->FindNick(params[0]);
1273 Srv->ChangeUserNick(u,params[1]);
1274 u->age = atoi(params[2].c_str());
1275 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1280 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1282 if (params.size() < 2)
1284 userrec* u = Srv->FindNick(params[0]);
1287 Srv->JoinUserToChannel(u,params[1],"");
1288 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1293 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1295 if (params.size() < 1)
1297 std::string servermask = params[0];
1298 if (Srv->MatchText(Srv->GetServerName(),servermask))
1300 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1301 Srv->RehashServer();
1302 ReadConfiguration(false);
1304 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1308 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1310 if (params.size() != 2)
1312 std::string nick = params[0];
1313 userrec* u = Srv->FindNick(prefix);
1314 userrec* who = Srv->FindNick(nick);
1317 /* Prepend kill source, if we don't have one */
1318 std::string sourceserv = prefix;
1321 sourceserv = u->server;
1323 if (*(params[1].c_str()) != '[')
1325 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1327 std::string reason = params[1];
1328 params[1] = ":" + params[1];
1329 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1330 Srv->QuitUser(who,reason);
1335 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1337 if (params.size() < 1)
1339 TreeServer* ServerSource = FindServer(prefix);
1342 ServerSource->SetPingFlag();
1347 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
1349 if (params.size() < 3)
1351 TreeServer* ServerSource = FindServer(prefix);
1354 if (*(params[0].c_str()) == '#')
1356 chanrec* c = Srv->FindChannel(params[0]);
1359 FOREACH_MOD OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]);
1364 userrec* u = Srv->FindNick(params[0]);
1367 FOREACH_MOD OnDecodeMetaData(TYPE_USER,u,params[1],params[2]);
1371 params[2] = ":" + params[2];
1372 DoOneToAllButSender(prefix,"METADATA",params,prefix);
1376 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
1378 if (params.size() < 1)
1380 TreeServer* ServerSource = FindServer(prefix);
1383 ServerSource->SetVersion(params[0]);
1385 params[0] = ":" + params[0];
1386 DoOneToAllButSender(prefix,"VERSION",params,prefix);
1390 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
1392 if (params.size() < 1)
1394 userrec* u = Srv->FindNick(prefix);
1397 Srv->ChangeHost(u,params[0]);
1398 DoOneToAllButSender(prefix,"FHOST",params,u->server);
1403 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
1405 if (params.size() < 6)
1407 std::string linetype = params[0]; /* Z, Q, E, G, K */
1408 std::string mask = params[1]; /* Line type dependent */
1409 std::string source = params[2]; /* may not be online or may be a server */
1410 std::string settime = params[3]; /* EPOCH time set */
1411 std::string duration = params[4]; /* Duration secs */
1412 std::string reason = params[5];
1414 switch (*(linetype.c_str()))
1417 add_zline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1418 zline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1421 add_qline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1422 qline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1425 add_eline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1426 eline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1429 add_gline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1430 gline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1433 add_kline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1436 /* Just in case... */
1437 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+linetype+"' sent by server "+prefix+", ignored!");
1440 /* Send it on its way */
1441 params[5] = ":" + params[5];
1442 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
1446 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
1448 if (params.size() < 1)
1450 userrec* u = Srv->FindNick(prefix);
1453 Srv->ChangeGECOS(u,params[0]);
1454 params[0] = ":" + params[0];
1455 DoOneToAllButSender(prefix,"FNAME",params,u->server);
1460 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
1462 if (params.size() < 1)
1464 log(DEBUG,"In IDLE command");
1465 userrec* u = Srv->FindNick(prefix);
1468 log(DEBUG,"USER EXISTS: %s",u->nick);
1469 // an incoming request
1470 if (params.size() == 1)
1472 userrec* x = Srv->FindNick(params[0]);
1475 userrec* x = Srv->FindNick(params[0]);
1476 log(DEBUG,"Got IDLE");
1477 char signon[MAXBUF];
1479 log(DEBUG,"Sending back IDLE 3");
1480 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
1481 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
1482 std::deque<std::string> par;
1483 par.push_back(prefix);
1484 par.push_back(signon);
1485 par.push_back(idle);
1486 // ours, we're done, pass it BACK
1487 DoOneToOne(params[0],"IDLE",par,u->server);
1491 // not ours pass it on
1492 DoOneToOne(prefix,"IDLE",params,x->server);
1495 else if (params.size() == 3)
1497 std::string who_did_the_whois = params[0];
1498 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
1499 if (who_to_send_to->fd > -1)
1501 log(DEBUG,"Got final IDLE");
1502 // an incoming reply to a whois we sent out
1503 std::string nick_whoised = prefix;
1504 unsigned long signon = atoi(params[1].c_str());
1505 unsigned long idle = atoi(params[2].c_str());
1506 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1507 do_whois(who_to_send_to,u,signon,idle,(char*)nick_whoised.c_str());
1511 // not ours, pass it on
1512 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
1519 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
1521 if (params.size() < 1)
1523 std::string stufftobounce = params[0];
1524 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
1528 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
1530 if (params.size() < 4)
1532 std::string servername = params[0];
1533 std::string password = params[1];
1534 // hopcount is not used for a remote server, we calculate this ourselves
1535 std::string description = params[3];
1536 TreeServer* ParentOfThis = FindServer(prefix);
1539 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
1542 TreeServer* CheckDupe = FindServer(servername);
1545 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1546 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1549 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
1550 ParentOfThis->AddChild(Node);
1551 params[3] = ":" + params[3];
1552 DoOneToAllButSender(prefix,"SERVER",params,prefix);
1553 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
1557 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
1559 if (params.size() < 4)
1561 std::string servername = params[0];
1562 std::string password = params[1];
1563 int hops = atoi(params[2].c_str());
1566 this->WriteLine("ERROR :Server too far away for authentication");
1567 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, server is too far away for authentication");
1570 std::string description = params[3];
1571 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1573 if ((x->Name == servername) && (x->RecvPass == password))
1575 TreeServer* CheckDupe = FindServer(servername);
1578 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1579 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1582 // Begin the sync here. this kickstarts the
1583 // other side, waiting in WAIT_AUTH_2 state,
1584 // into starting their burst, as it shows
1585 // that we're happy.
1586 this->LinkState = CONNECTED;
1587 // we should add the details of this server now
1588 // to the servers tree, as a child of the root
1590 TreeServer* Node = new TreeServer(servername,description,TreeRoot,this);
1591 TreeRoot->AddChild(Node);
1592 params[3] = ":" + params[3];
1593 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,servername);
1594 this->bursting = true;
1595 this->DoBurst(Node);
1599 this->WriteLine("ERROR :Invalid credentials");
1600 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, invalid link credentials");
1604 bool Inbound_Server(std::deque<std::string> ¶ms)
1606 if (params.size() < 4)
1608 std::string servername = params[0];
1609 std::string password = params[1];
1610 int hops = atoi(params[2].c_str());
1613 this->WriteLine("ERROR :Server too far away for authentication");
1614 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, server is too far away for authentication");
1617 std::string description = params[3];
1618 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1620 if ((x->Name == servername) && (x->RecvPass == password))
1622 TreeServer* CheckDupe = FindServer(servername);
1625 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1626 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1629 /* If the config says this link is encrypted, but the remote side
1630 * hasnt bothered to send the AES command before SERVER, then we
1631 * boot them off as we MUST have this connection encrypted.
1633 if ((x->EncryptionKey != "") && (!this->ctx))
1635 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
1636 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, remote server did not enable AES.");
1639 Srv->SendOpers("*** Verified incoming server connection from \002"+servername+"\002["+this->GetIP()+"] ("+description+")");
1640 this->InboundServerName = servername;
1641 this->InboundDescription = description;
1642 // this is good. Send our details: Our server name and description and hopcount of 0,
1643 // along with the sendpass from this block.
1644 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
1645 // move to the next state, we are now waiting for THEM.
1646 this->LinkState = WAIT_AUTH_2;
1650 this->WriteLine("ERROR :Invalid credentials");
1651 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, invalid link credentials");
1655 void Split(std::string line, bool stripcolon, std::deque<std::string> &n)
1657 if (!strchr(line.c_str(),' '))
1662 std::stringstream s(line);
1663 std::string param = "";
1682 if ((param == ":") && (item > 0))
1705 bool ProcessLine(std::string line)
1707 char* l = (char*)line.c_str();
1708 while ((strlen(l)) && (l[strlen(l)-1] == '\r') || (l[strlen(l)-1] == '\n'))
1709 l[strlen(l)-1] = '\0';
1713 Srv->Log(DEBUG,"IN: "+line);
1714 std::deque<std::string> params;
1715 this->Split(line,true,params);
1716 std::string command = "";
1717 std::string prefix = "";
1718 if (((params[0].c_str())[0] == ':') && (params.size() > 1))
1721 command = params[1];
1722 char* pref = (char*)prefix.c_str();
1730 command = params[0];
1734 if ((!this->ctx) && (command == "AES"))
1736 std::string sserv = params[0];
1737 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1739 if ((x->EncryptionKey != "") && (x->Name == sserv))
1741 this->InitAES(x->EncryptionKey,sserv);
1746 else if ((this->ctx) && (command == "AES"))
1748 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
1751 switch (this->LinkState)
1756 // Waiting for SERVER command from remote server. Server initiating
1757 // the connection sends the first SERVER command, listening server
1758 // replies with theirs if its happy, then if the initiator is happy,
1759 // it starts to send its net sync, which starts the merge, otherwise
1760 // it sends an ERROR.
1761 if (command == "SERVER")
1763 return this->Inbound_Server(params);
1765 else if (command == "ERROR")
1767 return this->Error(params);
1769 else if (command == "USER")
1771 this->WriteLine("ERROR :Client connections to this port are prohibited.");
1776 // Waiting for start of other side's netmerge to say they liked our
1778 if (command == "SERVER")
1780 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
1784 else if (command == "BURST")
1786 this->LinkState = CONNECTED;
1787 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
1788 TreeRoot->AddChild(Node);
1790 params.push_back(InboundServerName);
1791 params.push_back("*");
1792 params.push_back("1");
1793 params.push_back(":"+InboundDescription);
1794 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
1795 this->bursting = true;
1796 this->DoBurst(Node);
1798 else if (command == "ERROR")
1800 return this->Error(params);
1805 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
1809 if (command == "SERVER")
1811 // another server we connected to, which was in WAIT_AUTH_1 state,
1812 // has just sent us their credentials. If we get this far, theyre
1813 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
1814 // if we're happy with this, we should send our netburst which
1815 // kickstarts the merge.
1816 return this->Outbound_Reply_Server(params);
1818 else if (command == "ERROR")
1820 return this->Error(params);
1824 // This is the 'authenticated' state, when all passwords
1825 // have been exchanged and anything past this point is taken
1830 std::string direction = prefix;
1831 userrec* t = Srv->FindNick(prefix);
1834 direction = t->server;
1836 TreeServer* route_back_again = BestRouteTo(direction);
1837 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1839 if (route_back_again)
1841 WriteOpers("*** Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
1845 WriteOpers("*** Protocol violation: Invalid source '%s' in command '%s' from connection '%s'",direction.c_str(),line.c_str(),this->GetName().c_str());
1852 if (command == "SVSMODE")
1854 /* Services expects us to implement
1855 * SVSMODE. In inspircd its the same as
1860 std::string target = "";
1861 /* Yes, know, this is a mess. Its reasonably fast though as we're
1862 * working with std::string here.
1864 if ((command == "NICK") && (params.size() > 1))
1866 return this->IntroduceClient(prefix,params);
1868 else if (command == "FJOIN")
1870 return this->ForceJoin(prefix,params);
1872 else if (command == "SERVER")
1874 return this->RemoteServer(prefix,params);
1876 else if (command == "ERROR")
1878 return this->Error(params);
1880 else if (command == "OPERTYPE")
1882 return this->OperType(prefix,params);
1884 else if (command == "FMODE")
1886 return this->ForceMode(prefix,params);
1888 else if (command == "KILL")
1890 return this->RemoteKill(prefix,params);
1892 else if (command == "FTOPIC")
1894 return this->ForceTopic(prefix,params);
1896 else if (command == "REHASH")
1898 return this->RemoteRehash(prefix,params);
1900 else if (command == "METADATA")
1902 return this->MetaData(prefix,params);
1904 else if (command == "PING")
1906 return this->LocalPing(prefix,params);
1908 else if (command == "PONG")
1910 return this->LocalPong(prefix,params);
1912 else if (command == "VERSION")
1914 return this->ServerVersion(prefix,params);
1916 else if (command == "FHOST")
1918 return this->ChangeHost(prefix,params);
1920 else if (command == "FNAME")
1922 return this->ChangeName(prefix,params);
1924 else if (command == "ADDLINE")
1926 return this->AddLine(prefix,params);
1928 else if (command == "SVSNICK")
1932 prefix = this->GetName();
1934 return this->ForceNick(prefix,params);
1936 else if (command == "IDLE")
1938 return this->Whois(prefix,params);
1940 else if (command == "SVSJOIN")
1944 prefix = this->GetName();
1946 return this->ServiceJoin(prefix,params);
1948 else if (command == "SQUIT")
1950 if (params.size() == 2)
1952 this->Squit(FindServer(params[0]),params[1]);
1956 else if (command == "ENDBURST")
1958 this->bursting = false;
1963 // not a special inter-server command.
1964 // Emulate the actual user doing the command,
1965 // this saves us having a huge ugly parser.
1966 userrec* who = Srv->FindNick(prefix);
1967 std::string sourceserv = this->myhost;
1968 if (this->InboundServerName != "")
1970 sourceserv = this->InboundServerName;
1975 target = who->server;
1976 char* strparams[127];
1977 for (unsigned int q = 0; q < params.size(); q++)
1979 strparams[q] = (char*)params[q].c_str();
1981 Srv->CallCommandHandler(command, strparams, params.size(), who);
1985 // its not a user. Its either a server, or somethings screwed up.
1986 if (IsServer(prefix))
1988 target = Srv->GetServerName();
1992 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
1996 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2005 virtual std::string GetName()
2007 std::string sourceserv = this->myhost;
2008 if (this->InboundServerName != "")
2010 sourceserv = this->InboundServerName;
2015 virtual void OnTimeout()
2017 if (this->LinkState == CONNECTING)
2019 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2023 virtual void OnClose()
2025 // Connection closed.
2026 // If the connection is fully up (state CONNECTED)
2027 // then propogate a netsplit to all peers.
2028 std::string quitserver = this->myhost;
2029 if (this->InboundServerName != "")
2031 quitserver = this->InboundServerName;
2033 TreeServer* s = FindServer(quitserver);
2036 Squit(s,"Remote host closed the connection");
2040 virtual int OnIncomingConnection(int newsock, char* ip)
2042 TreeSocket* s = new TreeSocket(newsock, ip);
2048 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2050 for (unsigned int c = 0; c < list.size(); c++)
2052 if (list[c] == server)
2057 list.push_back(server);
2060 // returns a list of DIRECT servernames for a specific channel
2061 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2063 std::vector<char*> *ulist = c->GetUsers();
2064 unsigned int ucount = ulist->size();
2065 for (unsigned int i = 0; i < ucount; i++)
2067 char* o = (*ulist)[i];
2068 userrec* otheruser = (userrec*)o;
2069 if (otheruser->fd < 0)
2071 TreeServer* best = BestRouteTo(otheruser->server);
2073 AddThisServer(best,list);
2079 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, std::string command, std::deque<std::string> ¶ms)
2081 TreeServer* omitroute = BestRouteTo(omit);
2082 if ((command == "NOTICE") || (command == "PRIVMSG"))
2084 if ((params.size() >= 2) && (*(params[0].c_str()) != '$'))
2086 if (*(params[0].c_str()) != '#')
2088 // special routing for private messages/notices
2089 userrec* d = Srv->FindNick(params[0]);
2092 std::deque<std::string> par;
2093 par.push_back(params[0]);
2094 par.push_back(":"+params[1]);
2095 DoOneToOne(prefix,command,par,d->server);
2101 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
2102 chanrec* c = Srv->FindChannel(params[0]);
2105 std::deque<TreeServer*> list;
2106 GetListOfServersForChannel(c,list);
2107 log(DEBUG,"Got a list of %d servers",list.size());
2108 unsigned int lsize = list.size();
2109 for (unsigned int i = 0; i < lsize; i++)
2111 TreeSocket* Sock = list[i]->GetSocket();
2112 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
2114 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
2115 Sock->WriteLine(data);
2123 unsigned int items = TreeRoot->ChildCount();
2124 for (unsigned int x = 0; x < items; x++)
2126 TreeServer* Route = TreeRoot->GetChild(x);
2127 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2129 TreeSocket* Sock = Route->GetSocket();
2130 Sock->WriteLine(data);
2136 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
2138 TreeServer* omitroute = BestRouteTo(omit);
2139 std::string FullLine = ":" + prefix + " " + command;
2140 unsigned int words = params.size();
2141 for (unsigned int x = 0; x < words; x++)
2143 FullLine = FullLine + " " + params[x];
2145 unsigned int items = TreeRoot->ChildCount();
2146 for (unsigned int x = 0; x < items; x++)
2148 TreeServer* Route = TreeRoot->GetChild(x);
2149 // Send the line IF:
2150 // The route has a socket (its a direct connection)
2151 // The route isnt the one to be omitted
2152 // The route isnt the path to the one to be omitted
2153 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2155 TreeSocket* Sock = Route->GetSocket();
2156 Sock->WriteLine(FullLine);
2162 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
2164 std::string FullLine = ":" + prefix + " " + command;
2165 unsigned int words = params.size();
2166 for (unsigned int x = 0; x < words; x++)
2168 FullLine = FullLine + " " + params[x];
2170 unsigned int items = TreeRoot->ChildCount();
2171 for (unsigned int x = 0; x < items; x++)
2173 TreeServer* Route = TreeRoot->GetChild(x);
2174 if (Route->GetSocket())
2176 TreeSocket* Sock = Route->GetSocket();
2177 Sock->WriteLine(FullLine);
2183 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
2185 TreeServer* Route = BestRouteTo(target);
2188 std::string FullLine = ":" + prefix + " " + command;
2189 unsigned int words = params.size();
2190 for (unsigned int x = 0; x < words; x++)
2192 FullLine = FullLine + " " + params[x];
2194 if (Route->GetSocket())
2196 TreeSocket* Sock = Route->GetSocket();
2197 Sock->WriteLine(FullLine);
2207 std::vector<TreeSocket*> Bindings;
2209 void ReadConfiguration(bool rebind)
2211 Conf = new ConfigReader;
2214 for (int j =0; j < Conf->Enumerate("bind"); j++)
2216 std::string Type = Conf->ReadValue("bind","type",j);
2217 std::string IP = Conf->ReadValue("bind","address",j);
2218 long Port = Conf->ReadInteger("bind","port",j,true);
2219 if (Type == "servers")
2225 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
2226 if (listener->GetState() == I_LISTENING)
2228 Srv->AddSocket(listener);
2229 Bindings.push_back(listener);
2233 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
2241 for (int j =0; j < Conf->Enumerate("link"); j++)
2244 L.Name = Conf->ReadValue("link","name",j);
2245 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
2246 L.Port = Conf->ReadInteger("link","port",j,true);
2247 L.SendPass = Conf->ReadValue("link","sendpass",j);
2248 L.RecvPass = Conf->ReadValue("link","recvpass",j);
2249 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
2250 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
2251 L.NextConnectTime = time(NULL) + L.AutoConnect;
2252 /* Bugfix by brain, do not allow people to enter bad configurations */
2253 if ((L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
2255 LinkBlocks.push_back(L);
2256 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
2260 log(DEFAULT,"m_spanningtree: Invalid configuration for server '%s', ignored!",L.Name.c_str());
2267 class ModuleSpanningTree : public Module
2269 std::vector<TreeSocket*> Bindings;
2275 ModuleSpanningTree(Server* Me)
2276 : Module::Module(Me)
2281 // Create the root of the tree
2282 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
2284 ReadConfiguration(true);
2287 void ShowLinks(TreeServer* Current, userrec* user, int hops)
2289 std::string Parent = TreeRoot->GetName();
2290 if (Current->GetParent())
2292 Parent = Current->GetParent()->GetName();
2294 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2296 ShowLinks(Current->GetChild(q),user,hops+1);
2298 WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),Parent.c_str(),hops,Current->GetDesc().c_str());
2301 int CountLocalServs()
2303 return TreeRoot->ChildCount();
2308 return serverlist.size();
2311 void HandleLinks(char** parameters, int pcnt, userrec* user)
2313 ShowLinks(TreeRoot,user,0);
2314 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
2318 void HandleLusers(char** parameters, int pcnt, userrec* user)
2320 WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),this->CountServs());
2321 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
2322 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
2323 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
2324 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
2328 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
2330 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80])
2334 for (int t = 0; t < depth; t++)
2336 matrix[line][t] = ' ';
2338 strlcpy(&matrix[line][depth],Current->GetName().c_str(),80);
2340 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2342 ShowMap(Current->GetChild(q),user,depth+2,matrix);
2347 // Ok, prepare to be confused.
2348 // After much mulling over how to approach this, it struck me that
2349 // the 'usual' way of doing a /MAP isnt the best way. Instead of
2350 // keeping track of a ton of ascii characters, and line by line
2351 // under recursion working out where to place them using multiplications
2352 // and divisons, we instead render the map onto a backplane of characters
2353 // (a character matrix), then draw the branches as a series of "L" shapes
2354 // from the nodes. This is not only friendlier on CPU it uses less stack.
2356 void HandleMap(char** parameters, int pcnt, userrec* user)
2358 // This array represents a virtual screen which we will
2359 // "scratch" draw to, as the console device of an irc
2360 // client does not provide for a proper terminal.
2361 char matrix[128][80];
2362 for (unsigned int t = 0; t < 128; t++)
2364 matrix[t][0] = '\0';
2367 // The only recursive bit is called here.
2368 ShowMap(TreeRoot,user,0,matrix);
2369 // Process each line one by one. The algorithm has a limit of
2370 // 128 servers (which is far more than a spanning tree should have
2371 // anyway, so we're ok). This limit can be raised simply by making
2372 // the character matrix deeper, 128 rows taking 10k of memory.
2373 for (int l = 1; l < line; l++)
2375 // scan across the line looking for the start of the
2376 // servername (the recursive part of the algorithm has placed
2377 // the servers at indented positions depending on what they
2379 int first_nonspace = 0;
2380 while (matrix[l][first_nonspace] == ' ')
2385 // Draw the `- (corner) section: this may be overwritten by
2386 // another L shape passing along the same vertical pane, becoming
2387 // a |- (branch) section instead.
2388 matrix[l][first_nonspace] = '-';
2389 matrix[l][first_nonspace-1] = '`';
2391 // Draw upwards until we hit the parent server, causing possibly
2392 // other corners (`-) to become branches (|-)
2393 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
2395 matrix[l2][first_nonspace-1] = '|';
2399 // dump the whole lot to the user. This is the easy bit, honest.
2400 for (int t = 0; t < line; t++)
2402 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
2404 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
2408 int HandleSquit(char** parameters, int pcnt, userrec* user)
2410 TreeServer* s = FindServerMask(parameters[0]);
2413 TreeSocket* sock = s->GetSocket();
2416 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
2417 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
2422 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
2427 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
2432 int HandleRemoteWhois(char** parameters, int pcnt, userrec* user)
2434 if ((user->fd > -1) && (pcnt > 1))
2436 userrec* remote = Srv->FindNick(parameters[1]);
2437 if ((remote) && (remote->fd < 0))
2439 std::deque<std::string> params;
2440 params.push_back(parameters[1]);
2441 DoOneToOne(user->nick,"IDLE",params,remote->server);
2446 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
2447 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
2454 void DoPingChecks(time_t curtime)
2456 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
2458 TreeServer* serv = TreeRoot->GetChild(j);
2459 TreeSocket* sock = serv->GetSocket();
2462 if (curtime >= serv->NextPingTime())
2464 if (serv->AnsweredLastPing())
2466 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
2467 serv->SetNextPingTime(curtime + 60);
2471 // they didnt answer, boot them
2472 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
2473 sock->Squit(serv,"Ping timeout");
2482 void AutoConnectServers(time_t curtime)
2484 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2486 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
2488 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
2489 x->NextConnectTime = curtime + x->AutoConnect;
2490 TreeServer* CheckDupe = FindServer(x->Name);
2493 // an autoconnected server is not connected. Check if its time to connect it
2494 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
2495 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name);
2496 Srv->AddSocket(newsocket);
2502 int HandleVersion(char** parameters, int pcnt, userrec* user)
2504 // we've already checked if pcnt > 0, so this is safe
2505 TreeServer* found = FindServerMask(parameters[0]);
2508 std::string Version = found->GetVersion();
2509 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
2513 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2518 int HandleConnect(char** parameters, int pcnt, userrec* user)
2520 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2522 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
2524 TreeServer* CheckDupe = FindServer(x->Name);
2527 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),x->IPAddr.c_str(),x->Port);
2528 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name);
2529 Srv->AddSocket(newsocket);
2534 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());
2539 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
2543 virtual bool HandleStats(char ** parameters, int pcnt, userrec* user)
2545 if (*parameters[0] == 'c')
2547 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
2549 WriteServ(user->fd,"213 %s C *@%s * %s %d 0 %s",user->nick,LinkBlocks[i].IPAddr.c_str(),LinkBlocks[i].Name.c_str(),LinkBlocks[i].Port,(LinkBlocks[i].EncryptionKey != "" ? "es" : " s"));
2550 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
2552 WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
2553 WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
2559 virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user)
2561 if (command == "CONNECT")
2563 return this->HandleConnect(parameters,pcnt,user);
2565 else if (command == "SQUIT")
2567 return this->HandleSquit(parameters,pcnt,user);
2569 else if (command == "STATS")
2571 return this->HandleStats(parameters,pcnt,user);
2573 else if (command == "MAP")
2575 this->HandleMap(parameters,pcnt,user);
2578 else if (command == "LUSERS")
2580 this->HandleLusers(parameters,pcnt,user);
2583 else if (command == "LINKS")
2585 this->HandleLinks(parameters,pcnt,user);
2588 else if (command == "WHOIS")
2593 return this->HandleRemoteWhois(parameters,pcnt,user);
2596 else if ((command == "VERSION") && (pcnt > 0))
2598 this->HandleVersion(parameters,pcnt,user);
2601 else if (Srv->IsValidModuleCommand(command, pcnt, user))
2603 // this bit of code cleverly routes all module commands
2604 // to all remote severs *automatically* so that modules
2605 // can just handle commands locally, without having
2606 // to have any special provision in place for remote
2607 // commands and linking protocols.
2608 std::deque<std::string> params;
2610 for (int j = 0; j < pcnt; j++)
2612 if (strchr(parameters[j],' '))
2614 params.push_back(":" + std::string(parameters[j]));
2618 params.push_back(std::string(parameters[j]));
2621 DoOneToMany(user->nick,command,params);
2626 virtual void OnGetServerDescription(std::string servername,std::string &description)
2628 TreeServer* s = FindServer(servername);
2631 description = s->GetDesc();
2635 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
2637 if (source->fd > -1)
2639 std::deque<std::string> params;
2640 params.push_back(dest->nick);
2641 params.push_back(channel->name);
2642 DoOneToMany(source->nick,"INVITE",params);
2646 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, std::string topic)
2648 std::deque<std::string> params;
2649 params.push_back(chan->name);
2650 params.push_back(":"+topic);
2651 DoOneToMany(user->nick,"TOPIC",params);
2654 virtual void OnWallops(userrec* user, std::string text)
2658 std::deque<std::string> params;
2659 params.push_back(":"+text);
2660 DoOneToMany(user->nick,"WALLOPS",params);
2664 virtual void OnUserNotice(userrec* user, void* dest, int target_type, std::string text)
2666 if (target_type == TYPE_USER)
2668 userrec* d = (userrec*)dest;
2669 if ((d->fd < 0) && (user->fd > -1))
2671 std::deque<std::string> params;
2673 params.push_back(d->nick);
2674 params.push_back(":"+text);
2675 DoOneToOne(user->nick,"NOTICE",params,d->server);
2682 chanrec *c = (chanrec*)dest;
2683 std::deque<TreeServer*> list;
2684 GetListOfServersForChannel(c,list);
2685 unsigned int ucount = list.size();
2686 for (unsigned int i = 0; i < ucount; i++)
2688 TreeSocket* Sock = list[i]->GetSocket();
2690 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+std::string(c->name)+" :"+text);
2696 virtual void OnUserMessage(userrec* user, void* dest, int target_type, std::string text)
2698 if (target_type == TYPE_USER)
2700 // route private messages which are targetted at clients only to the server
2701 // which needs to receive them
2702 userrec* d = (userrec*)dest;
2703 if ((d->fd < 0) && (user->fd > -1))
2705 std::deque<std::string> params;
2707 params.push_back(d->nick);
2708 params.push_back(":"+text);
2709 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
2716 chanrec *c = (chanrec*)dest;
2717 std::deque<TreeServer*> list;
2718 GetListOfServersForChannel(c,list);
2719 unsigned int ucount = list.size();
2720 for (unsigned int i = 0; i < ucount; i++)
2722 TreeSocket* Sock = list[i]->GetSocket();
2724 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+std::string(c->name)+" :"+text);
2730 virtual void OnBackgroundTimer(time_t curtime)
2732 AutoConnectServers(curtime);
2733 DoPingChecks(curtime);
2736 virtual void OnUserJoin(userrec* user, chanrec* channel)
2738 // Only do this for local users
2741 std::deque<std::string> params;
2743 params.push_back(channel->name);
2746 // if the channel has a key, force the join by emulating the key.
2747 params.push_back(channel->key);
2749 if (channel->GetUserCounter() > 1)
2751 // not the first in the channel
2752 DoOneToMany(user->nick,"JOIN",params);
2756 // first in the channel, set up their permissions
2757 // and the channel TS with FJOIN.
2759 snprintf(ts,24,"%lu",(unsigned long)channel->age);
2761 params.push_back(channel->name);
2762 params.push_back(ts);
2763 params.push_back("@"+std::string(user->nick));
2764 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
2769 virtual void OnChangeHost(userrec* user, std::string newhost)
2771 // only occurs for local clients
2772 if (user->registered != 7)
2774 std::deque<std::string> params;
2775 params.push_back(newhost);
2776 DoOneToMany(user->nick,"FHOST",params);
2779 virtual void OnChangeName(userrec* user, std::string gecos)
2781 // only occurs for local clients
2782 if (user->registered != 7)
2784 std::deque<std::string> params;
2785 params.push_back(gecos);
2786 DoOneToMany(user->nick,"FNAME",params);
2789 virtual void OnUserPart(userrec* user, chanrec* channel)
2793 std::deque<std::string> params;
2794 params.push_back(channel->name);
2795 DoOneToMany(user->nick,"PART",params);
2799 virtual void OnUserConnect(userrec* user)
2801 char agestr[MAXBUF];
2804 std::deque<std::string> params;
2805 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
2806 params.push_back(agestr);
2807 params.push_back(user->nick);
2808 params.push_back(user->host);
2809 params.push_back(user->dhost);
2810 params.push_back(user->ident);
2811 params.push_back("+"+std::string(user->modes));
2812 params.push_back(user->ip);
2813 params.push_back(":"+std::string(user->fullname));
2814 DoOneToMany(Srv->GetServerName(),"NICK",params);
2818 virtual void OnUserQuit(userrec* user, std::string reason)
2820 if ((user->fd > -1) && (user->registered == 7))
2822 std::deque<std::string> params;
2823 params.push_back(":"+reason);
2824 DoOneToMany(user->nick,"QUIT",params);
2828 virtual void OnUserPostNick(userrec* user, std::string oldnick)
2832 std::deque<std::string> params;
2833 params.push_back(user->nick);
2834 DoOneToMany(oldnick,"NICK",params);
2838 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, std::string reason)
2840 if (source->fd > -1)
2842 std::deque<std::string> params;
2843 params.push_back(chan->name);
2844 params.push_back(user->nick);
2845 params.push_back(":"+reason);
2846 DoOneToMany(source->nick,"KICK",params);
2850 virtual void OnRemoteKill(userrec* source, userrec* dest, std::string reason)
2852 std::deque<std::string> params;
2853 params.push_back(dest->nick);
2854 params.push_back(":"+reason);
2855 DoOneToMany(source->nick,"KILL",params);
2858 virtual void OnRehash(std::string parameter)
2860 if (parameter != "")
2862 std::deque<std::string> params;
2863 params.push_back(parameter);
2864 DoOneToMany(Srv->GetServerName(),"REHASH",params);
2866 if (Srv->MatchText(Srv->GetServerName(),parameter))
2868 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
2869 Srv->RehashServer();
2872 ReadConfiguration(false);
2875 // note: the protocol does not allow direct umode +o except
2876 // via NICK with 8 params. sending OPERTYPE infers +o modechange
2878 virtual void OnOper(userrec* user, std::string opertype)
2882 std::deque<std::string> params;
2883 params.push_back(opertype);
2884 DoOneToMany(user->nick,"OPERTYPE",params);
2888 void OnLine(userrec* source, std::string host, bool adding, char linetype, long duration, std::string reason)
2890 if (source->fd > -1)
2893 snprintf(type,8,"%cLINE",linetype);
2894 std::string stype = type;
2897 char sduration[MAXBUF];
2898 snprintf(sduration,MAXBUF,"%ld",duration);
2899 std::deque<std::string> params;
2900 params.push_back(host);
2901 params.push_back(sduration);
2902 params.push_back(":"+reason);
2903 DoOneToMany(source->nick,stype,params);
2907 std::deque<std::string> params;
2908 params.push_back(host);
2909 DoOneToMany(source->nick,stype,params);
2914 virtual void OnAddGLine(long duration, userrec* source, std::string reason, std::string hostmask)
2916 OnLine(source,hostmask,true,'G',duration,reason);
2919 virtual void OnAddZLine(long duration, userrec* source, std::string reason, std::string ipmask)
2921 OnLine(source,ipmask,true,'Z',duration,reason);
2924 virtual void OnAddQLine(long duration, userrec* source, std::string reason, std::string nickmask)
2926 OnLine(source,nickmask,true,'Q',duration,reason);
2929 virtual void OnAddELine(long duration, userrec* source, std::string reason, std::string hostmask)
2931 OnLine(source,hostmask,true,'E',duration,reason);
2934 virtual void OnDelGLine(userrec* source, std::string hostmask)
2936 OnLine(source,hostmask,false,'G',0,"");
2939 virtual void OnDelZLine(userrec* source, std::string ipmask)
2941 OnLine(source,ipmask,false,'Z',0,"");
2944 virtual void OnDelQLine(userrec* source, std::string nickmask)
2946 OnLine(source,nickmask,false,'Q',0,"");
2949 virtual void OnDelELine(userrec* source, std::string hostmask)
2951 OnLine(source,hostmask,false,'E',0,"");
2954 virtual void OnMode(userrec* user, void* dest, int target_type, std::string text)
2956 if ((user->fd > -1) && (user->registered == 7))
2958 if (target_type == TYPE_USER)
2960 userrec* u = (userrec*)dest;
2961 std::deque<std::string> params;
2962 params.push_back(u->nick);
2963 params.push_back(text);
2964 DoOneToMany(user->nick,"MODE",params);
2968 chanrec* c = (chanrec*)dest;
2969 std::deque<std::string> params;
2970 params.push_back(c->name);
2971 params.push_back(text);
2972 DoOneToMany(user->nick,"MODE",params);
2977 virtual void ProtoSendMode(void* opaque, int target_type, void* target, std::string modeline)
2979 TreeSocket* s = (TreeSocket*)opaque;
2982 if (target_type == TYPE_USER)
2984 userrec* u = (userrec*)target;
2985 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+modeline);
2989 chanrec* c = (chanrec*)target;
2990 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+modeline);
2995 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, std::string extname, std::string extdata)
2997 TreeSocket* s = (TreeSocket*)opaque;
3000 if (target_type == TYPE_USER)
3002 userrec* u = (userrec*)target;
3003 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
3007 chanrec* c = (chanrec*)target;
3008 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
3013 virtual ~ModuleSpanningTree()
3017 virtual Version GetVersion()
3019 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
3024 class ModuleSpanningTreeFactory : public ModuleFactory
3027 ModuleSpanningTreeFactory()
3031 ~ModuleSpanningTreeFactory()
3035 virtual Module * CreateModule(Server* Me)
3037 TreeProtocolModule = new ModuleSpanningTree(Me);
3038 return TreeProtocolModule;
3044 extern "C" void * init_module( void )
3046 return new ModuleSpanningTreeFactory;