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 <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 ServerConfig* Config;
78 extern std::vector<Module*> modules;
79 extern std::vector<ircd_module*> factory;
82 /* Any socket can have one of five states at any one time.
83 * The LISTENER state indicates a socket which is listening
84 * for connections. It cannot receive data itself, only incoming
86 * The CONNECTING state indicates an outbound socket which is
87 * waiting to be writeable.
88 * The WAIT_AUTH_1 state indicates the socket is outbound and
89 * has successfully connected, but has not yet sent and received
91 * The WAIT_AUTH_2 state indicates that the socket is inbound
92 * (allocated by a LISTENER) but has not yet sent and received
94 * The CONNECTED state represents a fully authorized, fully
97 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
99 /* We need to import these from the core for use in netbursts */
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();
194 Socket = NULL; /* Fix by brain */
198 /* When we create a new server, we call this constructor to initialize it.
199 * This constructor initializes the server's Route and Parent, and sets up
200 * its ping counters so that it will be pinged one minute from now.
202 TreeServer(std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock) : Parent(Above), ServerName(Name), ServerDesc(Desc), Socket(Sock)
205 UserCount = OperCount = 0;
206 this->SetNextPingTime(time(NULL) + 120);
209 /* find the 'route' for this server (e.g. the one directly connected
210 * to the local server, which we can use to reach it)
212 * In the following example, consider we have just added a TreeServer
213 * class for server G on our network, of which we are server A.
214 * To route traffic to G (marked with a *) we must send the data to
215 * B (marked with a +) so this algorithm initializes the 'Route'
216 * value to point at whichever server traffic must be routed through
217 * to get here. If we were to try this algorithm with server B,
218 * the Route pointer would point at its own object ('this').
228 * We only run this algorithm when a server is created, as
229 * the routes remain constant while ever the server exists, and
230 * do not need to be re-calculated.
234 if (Route == TreeRoot)
240 while (this->Route->GetParent() != TreeRoot)
242 this->Route = Route->GetParent();
246 /* Because recursive code is slow and takes a lot of resources,
247 * we store two representations of the server tree. The first
248 * is a recursive structure where each server references its
249 * children and its parent, which is used for netbursts and
250 * netsplits to dump the whole dataset to the other server,
251 * and the second is used for very fast lookups when routing
252 * messages and is instead a hash_map, where each item can
253 * be referenced by its server name. The AddHashEntry()
254 * call below automatically inserts each TreeServer class
255 * into the hash_map as it is created. There is a similar
256 * maintainance call in the destructor to tidy up deleted
260 this->AddHashEntry();
263 /* This method is used to add the structure to the
264 * hash_map for linear searches. It is only called
265 * by the constructors.
269 server_hash::iterator iter;
270 iter = serverlist.find(this->ServerName);
271 if (iter == serverlist.end())
272 serverlist[this->ServerName] = this;
275 /* This method removes the reference to this object
276 * from the hash_map which is used for linear searches.
277 * It is only called by the default destructor.
281 server_hash::iterator iter;
282 iter = serverlist.find(this->ServerName);
283 if (iter != serverlist.end())
284 serverlist.erase(iter);
287 /* These accessors etc should be pretty self-
291 TreeServer* GetRoute()
296 std::string GetName()
301 std::string GetDesc()
306 std::string GetVersion()
308 return VersionString;
311 void SetNextPingTime(time_t t)
314 LastPingWasGood = false;
317 time_t NextPingTime()
322 bool AnsweredLastPing()
324 return LastPingWasGood;
329 LastPingWasGood = true;
352 TreeSocket* GetSocket()
357 TreeServer* GetParent()
362 void SetVersion(std::string Version)
364 VersionString = Version;
367 unsigned int ChildCount()
369 return Children.size();
372 TreeServer* GetChild(unsigned int n)
374 if (n < Children.size())
376 /* Make sure they cant request
377 * an out-of-range object. After
378 * all we know what these programmer
379 * types are like *grin*.
389 void AddChild(TreeServer* Child)
391 Children.push_back(Child);
394 bool DelChild(TreeServer* Child)
396 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
407 /* Removes child nodes of this node, and of that node, etc etc.
408 * This is used during netsplits to automatically tidy up the
409 * server tree. It is slow, we don't use it for much else.
413 bool stillchildren = true;
414 while (stillchildren)
416 stillchildren = false;
417 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
419 TreeServer* s = (TreeServer*)*a;
423 stillchildren = true;
432 /* We'd better tidy up after ourselves, eh? */
433 this->DelHashEntry();
437 /* The Link class might as well be a struct,
438 * but this is C++ and we don't believe in structs (!).
439 * It holds the entire information of one <link>
440 * tag from the main config file. We maintain a list
441 * of them, and populate the list on rehash/load.
450 std::string SendPass;
451 std::string RecvPass;
452 unsigned long AutoConnect;
453 time_t NextConnectTime;
454 std::string EncryptionKey;
457 /* The usual stuff for inspircd modules,
458 * plus the vector of Link classes which we
459 * use to store the <link> tags from the config
463 std::vector<Link> LinkBlocks;
465 /* Yay for fast searches!
466 * This is hundreds of times faster than recursion
467 * or even scanning a linked list, especially when
468 * there are more than a few servers to deal with.
471 TreeServer* FindServer(std::string ServerName)
473 server_hash::iterator iter;
474 iter = serverlist.find(ServerName);
475 if (iter != serverlist.end())
485 /* Returns the locally connected server we must route a
486 * message through to reach server 'ServerName'. This
487 * only applies to one-to-one and not one-to-many routing.
488 * See the comments for the constructor of TreeServer
491 TreeServer* BestRouteTo(std::string ServerName)
493 if (ServerName.c_str() == TreeRoot->GetName())
495 TreeServer* Found = FindServer(ServerName);
498 return Found->GetRoute();
506 /* Find the first server matching a given glob mask.
507 * Theres no find-using-glob method of hash_map [awwww :-(]
508 * so instead, we iterate over the list using an iterator
509 * and match each one until we get a hit. Yes its slow,
512 TreeServer* FindServerMask(std::string ServerName)
514 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
516 if (Srv->MatchText(i->first,ServerName))
522 /* A convenient wrapper that returns true if a server exists */
523 bool IsServer(std::string ServerName)
525 return (FindServer(ServerName) != NULL);
528 /* Every SERVER connection inbound or outbound is represented by
529 * an object of type TreeSocket.
530 * TreeSockets, being inherited from InspSocket, can be tied into
531 * the core socket engine, and we cn therefore receive activity events
532 * for them, just like activex objects on speed. (yes really, that
533 * is a technical term!) Each of these which relates to a locally
534 * connected server is assocated with it, by hooking it onto a
535 * TreeSocket class using its constructor. In this way, we can
536 * maintain a list of servers, some of which are directly connected,
537 * some of which are not.
540 class TreeSocket : public InspSocket
543 std::string in_buffer;
544 ServerState LinkState;
545 std::string InboundServerName;
546 std::string InboundDescription;
548 int num_lost_servers;
550 bool LastPingWasGood;
554 unsigned int keylength;
558 /* Because most of the I/O gubbins are encapsulated within
559 * InspSocket, we just call the superclass constructor for
560 * most of the action, and append a few of our own values
563 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
564 : InspSocket(host, port, listening, maxtime)
567 this->LinkState = LISTENER;
569 this->ctx_out = NULL;
572 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
573 : InspSocket(host, port, listening, maxtime)
576 this->LinkState = CONNECTING;
578 this->ctx_out = NULL;
581 /* When a listening socket gives us a new file descriptor,
582 * we must associate it with a socket without creating a new
583 * connection. This constructor is used for this purpose.
585 TreeSocket(int newfd, char* ip)
586 : InspSocket(newfd, ip)
588 this->LinkState = WAIT_AUTH_1;
590 this->ctx_out = NULL;
591 this->SendCapabilities();
602 void InitAES(std::string key,std::string SName)
609 log(DEBUG,"Initialized AES key %s",key.c_str());
610 // key must be 16, 24, 32 etc bytes (multiple of 8)
611 keylength = key.length();
612 if (!(keylength == 16 || keylength == 24 || keylength == 32))
614 WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
615 log(DEBUG,"Key length not 16, 24 or 32 characters!");
619 WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
620 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\
621 \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);
622 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\
623 \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);
627 /* When an outbound connection finishes connecting, we receive
628 * this event, and must send our SERVER string to the other
629 * side. If the other side is happy, as outlined in the server
630 * to server docs on the inspircd.org site, the other side
631 * will then send back its own server string.
633 virtual bool OnConnected()
635 if (this->LinkState == CONNECTING)
637 Srv->SendOpers("*** Connection to "+myhost+"["+this->GetIP()+"] established.");
638 /* we do not need to change state here. */
639 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
641 if (x->Name == this->myhost)
643 this->SendCapabilities();
644 if (x->EncryptionKey != "")
646 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
648 WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
652 this->WriteLine("AES "+Srv->GetServerName());
653 this->InitAES(x->EncryptionKey,x->Name);
656 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
657 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
662 /* There is a (remote) chance that between the /CONNECT and the connection
663 * being accepted, some muppet has removed the <link> block and rehashed.
664 * If that happens the connection hangs here until it's closed. Unlikely
665 * and rather harmless.
670 virtual void OnError(InspSocketError e)
672 /* We don't handle this method, because all our
673 * dirty work is done in OnClose() (see below)
674 * which is still called on error conditions too.
678 virtual int OnDisconnect()
680 /* For the same reason as above, we don't
681 * handle OnDisconnect()
686 /* Recursively send the server tree with distances as hops.
687 * This is used during network burst to inform the other server
688 * (and any of ITS servers too) of what servers we know about.
689 * If at any point any of these servers already exist on the other
690 * end, our connection may be terminated. The hopcounts given
691 * by this function are relative, this doesn't matter so long as
692 * they are all >1, as all the remote servers re-calculate them
693 * to be relative too, with themselves as hop 0.
695 void SendServers(TreeServer* Current, TreeServer* s, int hops)
698 for (unsigned int q = 0; q < Current->ChildCount(); q++)
700 TreeServer* recursive_server = Current->GetChild(q);
701 if (recursive_server != s)
703 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
704 this->WriteLine(command);
705 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
706 /* down to next level */
707 this->SendServers(recursive_server, s, hops+1);
712 std::string MyCapabilities()
714 ServerConfig* Config = Srv->GetConfig();
715 std::vector<std::string> modlist;
716 std::string capabilities = "";
718 for (int i = 0; i <= MODCOUNT; i++)
720 if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
721 modlist.push_back(Config->module_names[i]);
723 sort(modlist.begin(),modlist.end());
724 for (unsigned int i = 0; i < modlist.size(); i++)
727 capabilities = capabilities + ",";
728 capabilities = capabilities + modlist[i];
733 void SendCapabilities()
735 this->WriteLine("CAPAB "+MyCapabilities());
738 bool Capab(std::deque<std::string> params)
740 if (params.size() != 1)
742 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
745 if (params[0] != this->MyCapabilities())
747 std::string quitserver = this->myhost;
748 if (this->InboundServerName != "")
750 quitserver = this->InboundServerName;
752 WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
753 WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
754 WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
755 WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
756 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
762 /* This function forces this server to quit, removing this server
763 * and any users on it (and servers and users below that, etc etc).
764 * It's very slow and pretty clunky, but luckily unless your network
765 * is having a REAL bad hair day, this function shouldnt be called
766 * too many times a month ;-)
768 void SquitServer(TreeServer* Current, CullList* Goners)
770 /* recursively squit the servers attached to 'Current'.
771 * We're going backwards so we don't remove users
772 * while we still need them ;)
774 for (unsigned int q = 0; q < Current->ChildCount(); q++)
776 TreeServer* recursive_server = Current->GetChild(q);
777 this->SquitServer(recursive_server,Goners);
779 /* Now we've whacked the kids, whack self */
781 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
783 if (!strcasecmp(u->second->server,Current->GetName().c_str()))
785 std::string qreason = Current->GetName()+" "+std::string(Srv->GetServerName());
786 Goners->AddItem(u->second,qreason);
792 /* This is a wrapper function for SquitServer above, which
793 * does some validation first and passes on the SQUIT to all
794 * other remaining servers.
796 void Squit(TreeServer* Current,std::string reason)
798 if ((Current) && (Current != TreeRoot))
800 std::deque<std::string> params;
801 params.push_back(Current->GetName());
802 params.push_back(":"+reason);
803 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
804 if (Current->GetParent() == TreeRoot)
806 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
810 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
812 num_lost_servers = 0;
814 CullList* Goners = new CullList();
815 SquitServer(Current, Goners);
818 Current->GetParent()->DelChild(Current);
821 WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
825 log(DEFAULT,"Squit from unknown server");
830 bool ForceMode(std::string source, std::deque<std::string> params)
832 userrec* who = new userrec;
833 who->fd = FD_MAGIC_NUMBER;
834 if (params.size() < 2)
837 for (unsigned int q = 0; q < params.size(); q++)
839 modelist[q] = (char*)params[q].c_str();
841 Srv->SendMode(modelist,params.size(),who);
842 DoOneToAllButSender(source,"FMODE",params,source);
848 bool ForceTopic(std::string source, std::deque<std::string> params)
850 if (params.size() != 4)
852 std::string channel = params[0];
853 time_t ts = atoi(params[1].c_str());
854 std::string setby = params[2];
855 std::string topic = params[3];
857 chanrec* c = Srv->FindChannel(channel);
860 if ((ts >= c->topicset) || (!*c->topic))
862 std::string oldtopic = c->topic;
863 strlcpy(c->topic,topic.c_str(),MAXTOPIC);
864 strlcpy(c->setby,setby.c_str(),NICKMAX);
866 /* if the topic text is the same as the current topic,
867 * dont bother to send the TOPIC command out, just silently
868 * update the set time and set nick.
870 if (oldtopic != topic)
871 WriteChannelWithServ((char*)source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
876 /* all done, send it on its way */
877 params[3] = ":" + params[3];
878 DoOneToAllButSender(source,"FTOPIC",params,source);
883 /* FJOIN, similar to unreal SJOIN */
884 bool ForceJoin(std::string source, std::deque<std::string> params)
886 if (params.size() < 3)
890 char modestring[MAXBUF];
891 char* mode_users[127];
892 mode_users[0] = first;
893 mode_users[1] = modestring;
894 strcpy(mode_users[1],"+");
895 unsigned int modectr = 2;
898 std::string channel = params[0];
899 time_t TS = atoi(params[1].c_str());
902 chanrec* chan = Srv->FindChannel(channel);
907 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
909 /* default is a high value, which if we dont have this
910 * channel will let the other side apply their modes.
912 time_t ourTS = time(NULL)+600;
913 chanrec* us = Srv->FindChannel(channel);
919 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
921 /* do this first, so our mode reversals are correctly received by other servers
922 * if there is a TS collision.
924 DoOneToAllButSender(source,"FJOIN",params,source);
926 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
928 /* process one channel at a time, applying modes. */
929 char* usr = (char*)params[usernum].c_str();
930 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
931 * (is this even possible?) */
934 char permissions = *usr;
939 mode_users[modectr++] = usr;
940 strlcat(modestring,"o",MAXBUF);
944 mode_users[modectr++] = usr;
945 strlcat(modestring,"h",MAXBUF);
949 mode_users[modectr++] = usr;
950 strlcat(modestring,"v",MAXBUF);
953 who = Srv->FindNick(usr);
956 Srv->JoinUserToChannel(who,channel,key);
957 if (modectr >= (MAXMODES-1))
959 /* theres a mode for this user. push them onto the mode queue, and flush it
960 * if there are more than MAXMODES to go.
962 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
964 /* We also always let u-lined clients win, no matter what the TS value */
965 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
966 Srv->SendMode(mode_users,modectr,who);
970 log(DEBUG,"Their channel newer than ours, bouncing their modes");
972 std::deque<std::string> params;
973 /* modes are now being UNSET... */
974 *mode_users[1] = '-';
975 for (unsigned int x = 0; x < modectr; x++)
977 params.push_back(mode_users[x]);
979 // tell everyone to bounce the modes. bad modes, bad!
980 DoOneToMany(Srv->GetServerName(),"FMODE",params);
982 strcpy(mode_users[1],"+");
988 /* there werent enough modes built up to flush it during FJOIN,
989 * or, there are a number left over. flush them out.
991 if ((modectr > 2) && (who))
995 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
996 Srv->SendMode(mode_users,modectr,who);
1000 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1001 std::deque<std::string> params;
1002 *mode_users[1] = '-';
1003 for (unsigned int x = 0; x < modectr; x++)
1005 params.push_back(mode_users[x]);
1007 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1014 bool IntroduceClient(std::string source, std::deque<std::string> params)
1016 if (params.size() < 8)
1018 // NICK age nick host dhost ident +modes ip :gecos
1020 std::string nick = params[1];
1021 std::string host = params[2];
1022 std::string dhost = params[3];
1023 std::string ident = params[4];
1024 time_t age = atoi(params[0].c_str());
1025 std::string modes = params[5];
1026 while (*(modes.c_str()) == '+')
1028 char* m = (char*)modes.c_str();
1032 std::string ip = params[6];
1033 std::string gecos = params[7];
1034 char* tempnick = (char*)nick.c_str();
1035 log(DEBUG,"Introduce client %s!%s@%s",tempnick,ident.c_str(),host.c_str());
1037 user_hash::iterator iter;
1038 iter = clientlist.find(tempnick);
1039 if (iter != clientlist.end())
1042 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);
1043 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
1047 clientlist[tempnick] = new userrec();
1048 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
1049 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX);
1050 strlcpy(clientlist[tempnick]->host, host.c_str(),160);
1051 strlcpy(clientlist[tempnick]->dhost, dhost.c_str(),160);
1052 clientlist[tempnick]->server = (char*)FindServerNamePtr(source.c_str());
1053 strlcpy(clientlist[tempnick]->ident, ident.c_str(),IDENTMAX);
1054 strlcpy(clientlist[tempnick]->fullname, gecos.c_str(),MAXGECOS);
1055 clientlist[tempnick]->registered = 7;
1056 clientlist[tempnick]->signon = age;
1057 strlcpy(clientlist[tempnick]->modes, modes.c_str(),53);
1058 strlcpy(clientlist[tempnick]->ip,ip.c_str(),16);
1063 for (int i = 0; i < MAXCHANS; i++)
1064 clientlist[tempnick]->chans.push_back(a);
1066 if (!this->bursting)
1068 WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host,clientlist[tempnick]->ip);
1070 params[7] = ":" + params[7];
1071 DoOneToAllButSender(source,"NICK",params,source);
1073 // Increment the Source Servers User Count..
1074 TreeServer* SourceServer = FindServer(source);
1076 SourceServer->AddUserCount();
1082 /* Send one or more FJOINs for a channel of users.
1083 * If the length of a single line is more than 480-NICKMAX
1084 * in length, it is split over multiple lines.
1086 void SendFJoins(TreeServer* Current, chanrec* c)
1088 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1090 snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1091 std::map<char*,char*> *ulist = c->GetUsers();
1092 for (std::map<char*,char*>::iterator i = ulist->begin(); i != ulist->end(); i++)
1094 char* o = i->second;
1095 userrec* otheruser = (userrec*)o;
1096 strlcat(list," ",MAXBUF);
1097 strlcat(list,cmode(otheruser,c),MAXBUF);
1098 strlcat(list,otheruser->nick,MAXBUF);
1099 if (strlen(list)>(480-NICKMAX))
1101 log(DEBUG,"FJOIN line wrapped");
1102 this->WriteLine(list);
1103 snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1106 if (list[strlen(list)-1] != ':')
1108 log(DEBUG,"Final FJOIN line");
1109 this->WriteLine(list);
1113 /* Send G, Q, Z and E lines */
1114 void SendXLines(TreeServer* Current)
1117 /* Yes, these arent too nice looking, but they get the job done */
1118 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
1120 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);
1121 this->WriteLine(data);
1123 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
1125 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);
1126 this->WriteLine(data);
1128 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
1130 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);
1131 this->WriteLine(data);
1133 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++)
1135 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);
1136 this->WriteLine(data);
1138 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++)
1140 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);
1141 this->WriteLine(data);
1143 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++)
1145 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);
1146 this->WriteLine(data);
1148 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++)
1150 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);
1151 this->WriteLine(data);
1153 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++)
1155 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);
1156 this->WriteLine(data);
1160 /* Send channel modes and topics */
1161 void SendChannelModes(TreeServer* Current)
1164 std::deque<std::string> list;
1165 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
1167 SendFJoins(Current, c->second);
1168 snprintf(data,MAXBUF,":%s FMODE %s +%s",Srv->GetServerName().c_str(),c->second->name,chanmodes(c->second));
1169 this->WriteLine(data);
1170 if (*c->second->topic)
1172 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);
1173 this->WriteLine(data);
1175 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
1177 snprintf(data,MAXBUF,":%s FMODE %s +b %s",Srv->GetServerName().c_str(),c->second->name,b->data);
1178 this->WriteLine(data);
1180 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1182 c->second->GetExtList(list);
1183 for (unsigned int j = 0; j < list.size(); j++)
1185 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1190 /* send all users and their oper state/modes */
1191 void SendUsers(TreeServer* Current)
1194 std::deque<std::string> list;
1195 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
1197 if (u->second->registered == 7)
1199 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);
1200 this->WriteLine(data);
1201 if (strchr(u->second->modes,'o'))
1203 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1205 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1207 u->second->GetExtList(list);
1208 for (unsigned int j = 0; j < list.size(); j++)
1210 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1216 /* This function is called when we want to send a netburst to a local
1217 * server. There is a set order we must do this, because for example
1218 * users require their servers to exist, and channels require their
1219 * users to exist. You get the idea.
1221 void DoBurst(TreeServer* s)
1223 Srv->SendOpers("*** Bursting to \2"+s->GetName()+"\2.");
1224 this->WriteLine("BURST");
1225 /* send our version string */
1226 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1227 /* Send server tree */
1228 this->SendServers(TreeRoot,s,1);
1229 /* Send users and their oper status */
1231 /* Send everything else (channel modes, xlines etc) */
1232 this->SendChannelModes(s);
1233 this->SendXLines(s);
1234 this->WriteLine("ENDBURST");
1235 Srv->SendOpers("*** Finished bursting to \2"+s->GetName()+"\2.");
1238 /* This function is called when we receive data from a remote
1239 * server. We buffer the data in a std::string (it doesnt stay
1240 * there for long), reading using InspSocket::Read() which can
1241 * read up to 16 kilobytes in one operation.
1243 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1244 * THE SOCKET OBJECT FOR US.
1246 virtual bool OnDataReady()
1248 char* data = this->Read();
1249 /* Check that the data read is a valid pointer and it has some content */
1252 this->in_buffer += data;
1253 /* While there is at least one new line in the buffer,
1254 * do something useful (we hope!) with it.
1256 while (in_buffer.find("\n") != std::string::npos)
1258 char* line = (char*)in_buffer.c_str();
1259 std::string ret = "";
1260 while ((*line != '\n') && (strlen(line)))
1262 if ((*line != '\r') && (*line != '\n'))
1266 if ((*line == '\n') || (*line == '\r'))
1269 /* Process this one, abort if it
1270 * didnt return true.
1276 memset(result,0,1024);
1278 log(DEBUG,"Original string '%s'",ret.c_str());
1279 /* ERROR + CAPAB is still allowed unencryped */
1280 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1282 int nbytes = from64tobits(out, ret.c_str(), 1024);
1283 if ((nbytes > 0) && (nbytes < 1024))
1285 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1286 ctx_in->Decrypt(out, result, nbytes, 1);
1287 for (int t = 0; t < nbytes; t++)
1288 if (result[t] == '\7') result[t] = 0;
1293 if (!this->ProcessLine(ret))
1299 /* EAGAIN returns an empty but non-NULL string, so this
1300 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1302 return (data != NULL);
1305 int WriteLine(std::string line)
1307 log(DEBUG,"OUT: %s",line.c_str());
1310 log(DEBUG,"AES context");
1312 char result64[10240];
1313 if (this->keylength)
1315 while (line.length() % this->keylength != 0)
1317 // pad it to be a multiple of the key length
1321 unsigned int ll = line.length();
1322 log(DEBUG,"Plaintext line with padding = %d chars",ll);
1323 ctx_out->Encrypt(line.c_str(), result, ll, 1);
1324 log(DEBUG,"Encrypted.");
1325 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1327 log(DEBUG,"Encrypted: %s",line.c_str());
1328 //int from64tobits(char *out, const char *in, int maxlen);
1330 return this->Write(line + "\r\n");
1333 /* Handle ERROR command */
1334 bool Error(std::deque<std::string> params)
1336 if (params.size() < 1)
1338 std::string Errmsg = params[0];
1339 std::string SName = myhost;
1340 if (InboundServerName != "")
1342 SName = InboundServerName;
1344 Srv->SendOpers("*** ERROR from "+SName+": "+Errmsg);
1345 /* we will return false to cause the socket to close.
1350 /* Because the core won't let users or even SERVERS set +o,
1351 * we use the OPERTYPE command to do this.
1353 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1355 if (params.size() != 1)
1357 std::string opertype = params[0];
1358 userrec* u = Srv->FindNick(prefix);
1361 strlcpy(u->oper,opertype.c_str(),NICKMAX);
1362 if (!strchr(u->modes,'o'))
1364 strcat(u->modes,"o");
1366 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1371 /* Because Andy insists that services-compatible servers must
1372 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1374 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1376 if (params.size() < 3)
1378 userrec* u = Srv->FindNick(params[0]);
1381 Srv->ChangeUserNick(u,params[1]);
1382 u->age = atoi(params[2].c_str());
1383 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1388 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1390 if (params.size() < 2)
1392 userrec* u = Srv->FindNick(params[0]);
1395 Srv->JoinUserToChannel(u,params[1],"");
1396 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1401 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1403 if (params.size() < 1)
1405 std::string servermask = params[0];
1406 if (Srv->MatchText(Srv->GetServerName(),servermask))
1408 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1409 Srv->RehashServer();
1410 ReadConfiguration(false);
1412 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1416 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1418 if (params.size() != 2)
1420 std::string nick = params[0];
1421 userrec* u = Srv->FindNick(prefix);
1422 userrec* who = Srv->FindNick(nick);
1425 /* Prepend kill source, if we don't have one */
1426 std::string sourceserv = prefix;
1429 sourceserv = u->server;
1431 if (*(params[1].c_str()) != '[')
1433 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1435 std::string reason = params[1];
1436 params[1] = ":" + params[1];
1437 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1438 Srv->QuitUser(who,reason);
1443 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1445 if (params.size() < 1)
1447 TreeServer* ServerSource = FindServer(prefix);
1450 ServerSource->SetPingFlag();
1455 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
1457 if (params.size() < 3)
1459 TreeServer* ServerSource = FindServer(prefix);
1462 if (*(params[0].c_str()) == '#')
1464 chanrec* c = Srv->FindChannel(params[0]);
1467 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
1472 userrec* u = Srv->FindNick(params[0]);
1475 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
1479 params[2] = ":" + params[2];
1480 DoOneToAllButSender(prefix,"METADATA",params,prefix);
1484 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
1486 if (params.size() < 1)
1488 TreeServer* ServerSource = FindServer(prefix);
1491 ServerSource->SetVersion(params[0]);
1493 params[0] = ":" + params[0];
1494 DoOneToAllButSender(prefix,"VERSION",params,prefix);
1498 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
1500 if (params.size() < 1)
1502 userrec* u = Srv->FindNick(prefix);
1505 Srv->ChangeHost(u,params[0]);
1506 DoOneToAllButSender(prefix,"FHOST",params,u->server);
1511 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
1513 if (params.size() < 6)
1515 std::string linetype = params[0]; /* Z, Q, E, G, K */
1516 std::string mask = params[1]; /* Line type dependent */
1517 std::string source = params[2]; /* may not be online or may be a server */
1518 std::string settime = params[3]; /* EPOCH time set */
1519 std::string duration = params[4]; /* Duration secs */
1520 std::string reason = params[5];
1522 switch (*(linetype.c_str()))
1525 add_zline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1526 zline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1529 add_qline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1530 qline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1533 add_eline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1534 eline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1537 add_gline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1538 gline_set_creation_time((char*)mask.c_str(), atoi(settime.c_str()));
1541 add_kline(atoi(duration.c_str()), source.c_str(), reason.c_str(), mask.c_str());
1544 /* Just in case... */
1545 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+linetype+"' sent by server "+prefix+", ignored!");
1548 /* Send it on its way */
1549 params[5] = ":" + params[5];
1550 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
1554 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
1556 if (params.size() < 1)
1558 userrec* u = Srv->FindNick(prefix);
1561 Srv->ChangeGECOS(u,params[0]);
1562 params[0] = ":" + params[0];
1563 DoOneToAllButSender(prefix,"FNAME",params,u->server);
1568 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
1570 if (params.size() < 1)
1572 log(DEBUG,"In IDLE command");
1573 userrec* u = Srv->FindNick(prefix);
1576 log(DEBUG,"USER EXISTS: %s",u->nick);
1577 // an incoming request
1578 if (params.size() == 1)
1580 userrec* x = Srv->FindNick(params[0]);
1581 if ((x) && (x->fd > -1))
1583 userrec* x = Srv->FindNick(params[0]);
1584 log(DEBUG,"Got IDLE");
1585 char signon[MAXBUF];
1587 log(DEBUG,"Sending back IDLE 3");
1588 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
1589 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
1590 std::deque<std::string> par;
1591 par.push_back(prefix);
1592 par.push_back(signon);
1593 par.push_back(idle);
1594 // ours, we're done, pass it BACK
1595 DoOneToOne(params[0],"IDLE",par,u->server);
1599 // not ours pass it on
1600 DoOneToOne(prefix,"IDLE",params,x->server);
1603 else if (params.size() == 3)
1605 std::string who_did_the_whois = params[0];
1606 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
1607 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1609 log(DEBUG,"Got final IDLE");
1610 // an incoming reply to a whois we sent out
1611 std::string nick_whoised = prefix;
1612 unsigned long signon = atoi(params[1].c_str());
1613 unsigned long idle = atoi(params[2].c_str());
1614 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1615 do_whois(who_to_send_to,u,signon,idle,(char*)nick_whoised.c_str());
1619 // not ours, pass it on
1620 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
1627 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
1629 if (params.size() < 1)
1631 std::string stufftobounce = params[0];
1632 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
1636 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
1638 if (params.size() < 4)
1640 std::string servername = params[0];
1641 std::string password = params[1];
1642 // hopcount is not used for a remote server, we calculate this ourselves
1643 std::string description = params[3];
1644 TreeServer* ParentOfThis = FindServer(prefix);
1647 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
1650 TreeServer* CheckDupe = FindServer(servername);
1653 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1654 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1657 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
1658 ParentOfThis->AddChild(Node);
1659 params[3] = ":" + params[3];
1660 DoOneToAllButSender(prefix,"SERVER",params,prefix);
1661 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
1665 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
1667 if (params.size() < 4)
1669 std::string servername = params[0];
1670 std::string password = params[1];
1671 int hops = atoi(params[2].c_str());
1674 this->WriteLine("ERROR :Server too far away for authentication");
1675 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, server is too far away for authentication");
1678 std::string description = params[3];
1679 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1681 if ((x->Name == servername) && (x->RecvPass == password))
1683 TreeServer* CheckDupe = FindServer(servername);
1686 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1687 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1690 // Begin the sync here. this kickstarts the
1691 // other side, waiting in WAIT_AUTH_2 state,
1692 // into starting their burst, as it shows
1693 // that we're happy.
1694 this->LinkState = CONNECTED;
1695 // we should add the details of this server now
1696 // to the servers tree, as a child of the root
1698 TreeServer* Node = new TreeServer(servername,description,TreeRoot,this);
1699 TreeRoot->AddChild(Node);
1700 params[3] = ":" + params[3];
1701 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,servername);
1702 this->bursting = true;
1703 this->DoBurst(Node);
1707 this->WriteLine("ERROR :Invalid credentials");
1708 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, invalid link credentials");
1712 bool Inbound_Server(std::deque<std::string> ¶ms)
1714 if (params.size() < 4)
1716 std::string servername = params[0];
1717 std::string password = params[1];
1718 int hops = atoi(params[2].c_str());
1721 this->WriteLine("ERROR :Server too far away for authentication");
1722 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, server is too far away for authentication");
1725 std::string description = params[3];
1726 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1728 if ((x->Name == servername) && (x->RecvPass == password))
1730 TreeServer* CheckDupe = FindServer(servername);
1733 this->WriteLine("ERROR :Server "+servername+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
1734 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
1737 /* If the config says this link is encrypted, but the remote side
1738 * hasnt bothered to send the AES command before SERVER, then we
1739 * boot them off as we MUST have this connection encrypted.
1741 if ((x->EncryptionKey != "") && (!this->ctx_in))
1743 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
1744 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, remote server did not enable AES.");
1747 Srv->SendOpers("*** Verified incoming server connection from \002"+servername+"\002["+this->GetIP()+"] ("+description+")");
1748 this->InboundServerName = servername;
1749 this->InboundDescription = description;
1750 // this is good. Send our details: Our server name and description and hopcount of 0,
1751 // along with the sendpass from this block.
1752 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
1753 // move to the next state, we are now waiting for THEM.
1754 this->LinkState = WAIT_AUTH_2;
1758 this->WriteLine("ERROR :Invalid credentials");
1759 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, invalid link credentials");
1763 void Split(std::string line, bool stripcolon, std::deque<std::string> &n)
1765 if (!strchr(line.c_str(),' '))
1770 std::stringstream s(line);
1771 std::string param = "";
1790 if ((param == ":") && (item > 0))
1813 bool ProcessLine(std::string line)
1815 char* l = (char*)line.c_str();
1816 while ((strlen(l)) && (l[strlen(l)-1] == '\r') || (l[strlen(l)-1] == '\n'))
1817 l[strlen(l)-1] = '\0';
1821 Srv->Log(DEBUG,"IN: "+line);
1823 std::deque<std::string> params;
1824 this->Split(line,true,params);
1825 std::string command = "";
1826 std::string prefix = "";
1827 if (((params[0].c_str())[0] == ':') && (params.size() > 1))
1830 command = params[1];
1831 char* pref = (char*)prefix.c_str();
1839 command = params[0];
1843 if ((!this->ctx_in) && (command == "AES"))
1845 std::string sserv = params[0];
1846 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
1848 if ((x->EncryptionKey != "") && (x->Name == sserv))
1850 this->InitAES(x->EncryptionKey,sserv);
1855 else if ((this->ctx_in) && (command == "AES"))
1857 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
1860 switch (this->LinkState)
1865 // Waiting for SERVER command from remote server. Server initiating
1866 // the connection sends the first SERVER command, listening server
1867 // replies with theirs if its happy, then if the initiator is happy,
1868 // it starts to send its net sync, which starts the merge, otherwise
1869 // it sends an ERROR.
1870 if (command == "PASS")
1872 /* Silently ignored */
1874 else if (command == "SERVER")
1876 return this->Inbound_Server(params);
1878 else if (command == "ERROR")
1880 return this->Error(params);
1882 else if (command == "USER")
1884 this->WriteLine("ERROR :Client connections to this port are prohibited.");
1887 else if (command == "CAPAB")
1889 return this->Capab(params);
1891 else if ((command == "U") || (command == "S"))
1893 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
1898 this->WriteLine("ERROR :Invalid command in negotiation phase.");
1903 // Waiting for start of other side's netmerge to say they liked our
1905 if (command == "SERVER")
1907 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
1911 else if ((command == "U") || (command == "S"))
1913 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
1916 else if (command == "BURST")
1918 this->LinkState = CONNECTED;
1919 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
1920 TreeRoot->AddChild(Node);
1922 params.push_back(InboundServerName);
1923 params.push_back("*");
1924 params.push_back("1");
1925 params.push_back(":"+InboundDescription);
1926 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
1927 this->bursting = true;
1928 this->DoBurst(Node);
1930 else if (command == "ERROR")
1932 return this->Error(params);
1934 else if (command == "CAPAB")
1936 return this->Capab(params);
1941 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
1945 if (command == "SERVER")
1947 // another server we connected to, which was in WAIT_AUTH_1 state,
1948 // has just sent us their credentials. If we get this far, theyre
1949 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
1950 // if we're happy with this, we should send our netburst which
1951 // kickstarts the merge.
1952 return this->Outbound_Reply_Server(params);
1954 else if (command == "ERROR")
1956 return this->Error(params);
1960 // This is the 'authenticated' state, when all passwords
1961 // have been exchanged and anything past this point is taken
1966 std::string direction = prefix;
1967 userrec* t = Srv->FindNick(prefix);
1970 direction = t->server;
1972 TreeServer* route_back_again = BestRouteTo(direction);
1973 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1975 if (route_back_again)
1976 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
1981 * When there is activity on the socket, reset the ping counter so
1982 * that we're not wasting bandwidth pinging an active server.
1984 route_back_again->SetNextPingTime(time(NULL) + 120);
1985 route_back_again->SetPingFlag();
1988 if (command == "SVSMODE")
1990 /* Services expects us to implement
1991 * SVSMODE. In inspircd its the same as
1996 std::string target = "";
1997 /* Yes, know, this is a mess. Its reasonably fast though as we're
1998 * working with std::string here.
2000 if ((command == "NICK") && (params.size() > 1))
2002 return this->IntroduceClient(prefix,params);
2004 else if (command == "FJOIN")
2006 return this->ForceJoin(prefix,params);
2008 else if (command == "SERVER")
2010 return this->RemoteServer(prefix,params);
2012 else if (command == "ERROR")
2014 return this->Error(params);
2016 else if (command == "OPERTYPE")
2018 return this->OperType(prefix,params);
2020 else if (command == "FMODE")
2022 return this->ForceMode(prefix,params);
2024 else if (command == "KILL")
2026 return this->RemoteKill(prefix,params);
2028 else if (command == "FTOPIC")
2030 return this->ForceTopic(prefix,params);
2032 else if (command == "REHASH")
2034 return this->RemoteRehash(prefix,params);
2036 else if (command == "METADATA")
2038 return this->MetaData(prefix,params);
2040 else if (command == "PING")
2042 return this->LocalPing(prefix,params);
2044 else if (command == "PONG")
2046 return this->LocalPong(prefix,params);
2048 else if (command == "VERSION")
2050 return this->ServerVersion(prefix,params);
2052 else if (command == "FHOST")
2054 return this->ChangeHost(prefix,params);
2056 else if (command == "FNAME")
2058 return this->ChangeName(prefix,params);
2060 else if (command == "ADDLINE")
2062 return this->AddLine(prefix,params);
2064 else if (command == "SVSNICK")
2068 prefix = this->GetName();
2070 return this->ForceNick(prefix,params);
2072 else if (command == "IDLE")
2074 return this->Whois(prefix,params);
2076 else if (command == "SVSJOIN")
2080 prefix = this->GetName();
2082 return this->ServiceJoin(prefix,params);
2084 else if (command == "SQUIT")
2086 if (params.size() == 2)
2088 this->Squit(FindServer(params[0]),params[1]);
2092 else if (command == "ENDBURST")
2094 this->bursting = false;
2099 // not a special inter-server command.
2100 // Emulate the actual user doing the command,
2101 // this saves us having a huge ugly parser.
2102 userrec* who = Srv->FindNick(prefix);
2103 std::string sourceserv = this->myhost;
2104 if (this->InboundServerName != "")
2106 sourceserv = this->InboundServerName;
2111 target = who->server;
2112 char* strparams[127];
2113 for (unsigned int q = 0; q < params.size(); q++)
2115 strparams[q] = (char*)params[q].c_str();
2117 Srv->CallCommandHandler(command, strparams, params.size(), who);
2121 // its not a user. Its either a server, or somethings screwed up.
2122 if (IsServer(prefix))
2124 target = Srv->GetServerName();
2128 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2132 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2141 virtual std::string GetName()
2143 std::string sourceserv = this->myhost;
2144 if (this->InboundServerName != "")
2146 sourceserv = this->InboundServerName;
2151 virtual void OnTimeout()
2153 if (this->LinkState == CONNECTING)
2155 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2159 virtual void OnClose()
2161 // Connection closed.
2162 // If the connection is fully up (state CONNECTED)
2163 // then propogate a netsplit to all peers.
2164 std::string quitserver = this->myhost;
2165 if (this->InboundServerName != "")
2167 quitserver = this->InboundServerName;
2169 TreeServer* s = FindServer(quitserver);
2172 Squit(s,"Remote host closed the connection");
2174 WriteOpers("Server '\2%s\2[%s]' closed the connection.",quitserver.c_str(),this->GetIP().c_str());
2177 virtual int OnIncomingConnection(int newsock, char* ip)
2179 TreeSocket* s = new TreeSocket(newsock, ip);
2185 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2187 for (unsigned int c = 0; c < list.size(); c++)
2189 if (list[c] == server)
2194 list.push_back(server);
2197 // returns a list of DIRECT servernames for a specific channel
2198 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2200 std::map<char*,char*> *ulist = c->GetUsers();
2201 for (std::map<char*,char*>::iterator i = ulist->begin(); i != ulist->end(); i++)
2203 char* o = i->second;
2204 userrec* otheruser = (userrec*)o;
2205 if (otheruser->fd < 0)
2207 TreeServer* best = BestRouteTo(otheruser->server);
2209 AddThisServer(best,list);
2215 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, std::string command, std::deque<std::string> ¶ms)
2217 TreeServer* omitroute = BestRouteTo(omit);
2218 if ((command == "NOTICE") || (command == "PRIVMSG"))
2220 if ((params.size() >= 2) && (*(params[0].c_str()) != '$'))
2222 if (*(params[0].c_str()) != '#')
2224 // special routing for private messages/notices
2225 userrec* d = Srv->FindNick(params[0]);
2228 std::deque<std::string> par;
2229 par.push_back(params[0]);
2230 par.push_back(":"+params[1]);
2231 DoOneToOne(prefix,command,par,d->server);
2237 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
2238 chanrec* c = Srv->FindChannel(params[0]);
2241 std::deque<TreeServer*> list;
2242 GetListOfServersForChannel(c,list);
2243 log(DEBUG,"Got a list of %d servers",list.size());
2244 unsigned int lsize = list.size();
2245 for (unsigned int i = 0; i < lsize; i++)
2247 TreeSocket* Sock = list[i]->GetSocket();
2248 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
2250 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
2251 Sock->WriteLine(data);
2259 unsigned int items = TreeRoot->ChildCount();
2260 for (unsigned int x = 0; x < items; x++)
2262 TreeServer* Route = TreeRoot->GetChild(x);
2263 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2265 TreeSocket* Sock = Route->GetSocket();
2266 Sock->WriteLine(data);
2272 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
2274 TreeServer* omitroute = BestRouteTo(omit);
2275 std::string FullLine = ":" + prefix + " " + command;
2276 unsigned int words = params.size();
2277 for (unsigned int x = 0; x < words; x++)
2279 FullLine = FullLine + " " + params[x];
2281 unsigned int items = TreeRoot->ChildCount();
2282 for (unsigned int x = 0; x < items; x++)
2284 TreeServer* Route = TreeRoot->GetChild(x);
2285 // Send the line IF:
2286 // The route has a socket (its a direct connection)
2287 // The route isnt the one to be omitted
2288 // The route isnt the path to the one to be omitted
2289 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2291 TreeSocket* Sock = Route->GetSocket();
2292 Sock->WriteLine(FullLine);
2298 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
2300 std::string FullLine = ":" + prefix + " " + command;
2301 unsigned int words = params.size();
2302 for (unsigned int x = 0; x < words; x++)
2304 FullLine = FullLine + " " + params[x];
2306 unsigned int items = TreeRoot->ChildCount();
2307 for (unsigned int x = 0; x < items; x++)
2309 TreeServer* Route = TreeRoot->GetChild(x);
2310 if (Route->GetSocket())
2312 TreeSocket* Sock = Route->GetSocket();
2313 Sock->WriteLine(FullLine);
2319 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
2321 TreeServer* Route = BestRouteTo(target);
2324 std::string FullLine = ":" + prefix + " " + command;
2325 unsigned int words = params.size();
2326 for (unsigned int x = 0; x < words; x++)
2328 FullLine = FullLine + " " + params[x];
2330 if (Route->GetSocket())
2332 TreeSocket* Sock = Route->GetSocket();
2333 Sock->WriteLine(FullLine);
2343 std::vector<TreeSocket*> Bindings;
2345 void ReadConfiguration(bool rebind)
2347 Conf = new ConfigReader;
2350 for (int j =0; j < Conf->Enumerate("bind"); j++)
2352 std::string Type = Conf->ReadValue("bind","type",j);
2353 std::string IP = Conf->ReadValue("bind","address",j);
2354 long Port = Conf->ReadInteger("bind","port",j,true);
2355 if (Type == "servers")
2361 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
2362 if (listener->GetState() == I_LISTENING)
2364 Srv->AddSocket(listener);
2365 Bindings.push_back(listener);
2369 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
2377 for (int j =0; j < Conf->Enumerate("link"); j++)
2380 L.Name = Conf->ReadValue("link","name",j);
2381 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
2382 L.Port = Conf->ReadInteger("link","port",j,true);
2383 L.SendPass = Conf->ReadValue("link","sendpass",j);
2384 L.RecvPass = Conf->ReadValue("link","recvpass",j);
2385 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
2386 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
2387 L.NextConnectTime = time(NULL) + L.AutoConnect;
2388 /* Bugfix by brain, do not allow people to enter bad configurations */
2389 if ((L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
2391 LinkBlocks.push_back(L);
2392 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
2396 if (L.RecvPass == "")
2398 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
2400 else if (L.SendPass == "")
2402 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
2404 else if (L.Name == "")
2406 log(DEFAULT,"Invalid configuration, link tag without a name!");
2410 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
2418 class ModuleSpanningTree : public Module
2420 std::vector<TreeSocket*> Bindings;
2426 ModuleSpanningTree(Server* Me)
2427 : Module::Module(Me)
2432 // Create the root of the tree
2433 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
2435 ReadConfiguration(true);
2438 void ShowLinks(TreeServer* Current, userrec* user, int hops)
2440 std::string Parent = TreeRoot->GetName();
2441 if (Current->GetParent())
2443 Parent = Current->GetParent()->GetName();
2445 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2447 ShowLinks(Current->GetChild(q),user,hops+1);
2449 WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),Parent.c_str(),hops,Current->GetDesc().c_str());
2452 int CountLocalServs()
2454 return TreeRoot->ChildCount();
2459 return serverlist.size();
2462 void HandleLinks(char** parameters, int pcnt, userrec* user)
2464 ShowLinks(TreeRoot,user,0);
2465 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
2469 void HandleLusers(char** parameters, int pcnt, userrec* user)
2471 WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),this->CountServs());
2472 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
2473 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
2474 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
2475 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
2479 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
2481 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80])
2485 for (int t = 0; t < depth; t++)
2487 matrix[line][t] = ' ';
2490 // For Aligning, we need to work out exactly how deep this thing is, and produce
2491 // a 'Spacer' String to compensate.
2494 memset(spacer,' ',40);
2495 if ((40 - Current->GetName().length() - depth) > 1) {
2496 spacer[40 - Current->GetName().length() - depth] = '\0';
2505 if (clientlist.size() == 0) {
2506 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
2511 percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
2513 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
2514 strlcpy(&matrix[line][depth],text,80);
2516 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2518 ShowMap(Current->GetChild(q),user,depth+2,matrix);
2523 // Ok, prepare to be confused.
2524 // After much mulling over how to approach this, it struck me that
2525 // the 'usual' way of doing a /MAP isnt the best way. Instead of
2526 // keeping track of a ton of ascii characters, and line by line
2527 // under recursion working out where to place them using multiplications
2528 // and divisons, we instead render the map onto a backplane of characters
2529 // (a character matrix), then draw the branches as a series of "L" shapes
2530 // from the nodes. This is not only friendlier on CPU it uses less stack.
2532 void HandleMap(char** parameters, int pcnt, userrec* user)
2534 // This array represents a virtual screen which we will
2535 // "scratch" draw to, as the console device of an irc
2536 // client does not provide for a proper terminal.
2537 char matrix[128][80];
2538 for (unsigned int t = 0; t < 128; t++)
2540 matrix[t][0] = '\0';
2543 // The only recursive bit is called here.
2544 ShowMap(TreeRoot,user,0,matrix);
2545 // Process each line one by one. The algorithm has a limit of
2546 // 128 servers (which is far more than a spanning tree should have
2547 // anyway, so we're ok). This limit can be raised simply by making
2548 // the character matrix deeper, 128 rows taking 10k of memory.
2549 for (int l = 1; l < line; l++)
2551 // scan across the line looking for the start of the
2552 // servername (the recursive part of the algorithm has placed
2553 // the servers at indented positions depending on what they
2555 int first_nonspace = 0;
2556 while (matrix[l][first_nonspace] == ' ')
2561 // Draw the `- (corner) section: this may be overwritten by
2562 // another L shape passing along the same vertical pane, becoming
2563 // a |- (branch) section instead.
2564 matrix[l][first_nonspace] = '-';
2565 matrix[l][first_nonspace-1] = '`';
2567 // Draw upwards until we hit the parent server, causing possibly
2568 // other corners (`-) to become branches (|-)
2569 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
2571 matrix[l2][first_nonspace-1] = '|';
2575 // dump the whole lot to the user. This is the easy bit, honest.
2576 for (int t = 0; t < line; t++)
2578 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
2580 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
2584 int HandleSquit(char** parameters, int pcnt, userrec* user)
2586 TreeServer* s = FindServerMask(parameters[0]);
2591 WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
2594 TreeSocket* sock = s->GetSocket();
2597 log(DEBUG,"Splitting server %s",s->GetName().c_str());
2598 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
2599 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
2600 Srv->RemoveSocket(sock);
2604 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
2609 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
2614 int HandleRemoteWhois(char** parameters, int pcnt, userrec* user)
2616 if ((user->fd > -1) && (pcnt > 1))
2618 userrec* remote = Srv->FindNick(parameters[1]);
2619 if ((remote) && (remote->fd < 0))
2621 std::deque<std::string> params;
2622 params.push_back(parameters[1]);
2623 DoOneToOne(user->nick,"IDLE",params,remote->server);
2628 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
2629 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
2636 void DoPingChecks(time_t curtime)
2638 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
2640 TreeServer* serv = TreeRoot->GetChild(j);
2641 TreeSocket* sock = serv->GetSocket();
2644 if (curtime >= serv->NextPingTime())
2646 if (serv->AnsweredLastPing())
2648 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
2649 serv->SetNextPingTime(curtime + 120);
2653 // they didnt answer, boot them
2654 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
2655 sock->Squit(serv,"Ping timeout");
2656 Srv->RemoveSocket(sock);
2665 void AutoConnectServers(time_t curtime)
2667 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2669 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
2671 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
2672 x->NextConnectTime = curtime + x->AutoConnect;
2673 TreeServer* CheckDupe = FindServer(x->Name);
2676 // an autoconnected server is not connected. Check if its time to connect it
2677 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
2678 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name);
2679 Srv->AddSocket(newsocket);
2685 int HandleVersion(char** parameters, int pcnt, userrec* user)
2687 // we've already checked if pcnt > 0, so this is safe
2688 TreeServer* found = FindServerMask(parameters[0]);
2691 std::string Version = found->GetVersion();
2692 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
2693 if (found == TreeRoot)
2695 std::stringstream out(Config->data005);
2696 std::string token = "";
2697 std::string line5 = "";
2698 int token_counter = 0;
2702 line5 = line5 + token + " ";
2704 if ((token_counter >= 13) || (out.eof() == true))
2706 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2715 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2720 int HandleConnect(char** parameters, int pcnt, userrec* user)
2722 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2724 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
2726 TreeServer* CheckDupe = FindServer(x->Name);
2729 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);
2730 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name);
2731 Srv->AddSocket(newsocket);
2736 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());
2741 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
2745 virtual int OnStats(char statschar, userrec* user)
2747 if (statschar == 'c')
2749 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
2751 WriteServ(user->fd,"213 %s C *@%s * %s %d 0 %c%c%c",user->nick,LinkBlocks[i].IPAddr.c_str(),LinkBlocks[i].Name.c_str(),LinkBlocks[i].Port,(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-'),(LinkBlocks[i].AutoConnect ? 'a' : '-'),'s');
2752 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
2754 WriteServ(user->fd,"219 %s %c :End of /STATS report",user->nick,statschar);
2755 WriteOpers("*** Notice: Stats '%c' requested by %s (%s@%s)",statschar,user->nick,user->ident,user->host);
2761 virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated)
2763 /* If the command doesnt appear to be valid, we dont want to mess with it. */
2767 if (command == "CONNECT")
2769 return this->HandleConnect(parameters,pcnt,user);
2771 else if (command == "SQUIT")
2773 return this->HandleSquit(parameters,pcnt,user);
2775 else if (command == "MAP")
2777 this->HandleMap(parameters,pcnt,user);
2780 else if (command == "LUSERS")
2782 this->HandleLusers(parameters,pcnt,user);
2785 else if (command == "LINKS")
2787 this->HandleLinks(parameters,pcnt,user);
2790 else if (command == "WHOIS")
2795 return this->HandleRemoteWhois(parameters,pcnt,user);
2798 else if ((command == "VERSION") && (pcnt > 0))
2800 this->HandleVersion(parameters,pcnt,user);
2803 else if (Srv->IsValidModuleCommand(command, pcnt, user))
2805 // this bit of code cleverly routes all module commands
2806 // to all remote severs *automatically* so that modules
2807 // can just handle commands locally, without having
2808 // to have any special provision in place for remote
2809 // commands and linking protocols.
2810 std::deque<std::string> params;
2812 for (int j = 0; j < pcnt; j++)
2814 if (strchr(parameters[j],' '))
2816 params.push_back(":" + std::string(parameters[j]));
2820 params.push_back(std::string(parameters[j]));
2823 DoOneToMany(user->nick,command,params);
2828 virtual void OnGetServerDescription(std::string servername,std::string &description)
2830 TreeServer* s = FindServer(servername);
2833 description = s->GetDesc();
2837 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
2839 if (source->fd > -1)
2841 std::deque<std::string> params;
2842 params.push_back(dest->nick);
2843 params.push_back(channel->name);
2844 DoOneToMany(source->nick,"INVITE",params);
2848 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, std::string topic)
2850 std::deque<std::string> params;
2851 params.push_back(chan->name);
2852 params.push_back(":"+topic);
2853 DoOneToMany(user->nick,"TOPIC",params);
2856 virtual void OnWallops(userrec* user, std::string text)
2860 std::deque<std::string> params;
2861 params.push_back(":"+text);
2862 DoOneToMany(user->nick,"WALLOPS",params);
2866 virtual void OnUserNotice(userrec* user, void* dest, int target_type, std::string text)
2868 if (target_type == TYPE_USER)
2870 userrec* d = (userrec*)dest;
2871 if ((d->fd < 0) && (user->fd > -1))
2873 std::deque<std::string> params;
2875 params.push_back(d->nick);
2876 params.push_back(":"+text);
2877 DoOneToOne(user->nick,"NOTICE",params,d->server);
2884 chanrec *c = (chanrec*)dest;
2885 std::deque<TreeServer*> list;
2886 GetListOfServersForChannel(c,list);
2887 unsigned int ucount = list.size();
2888 for (unsigned int i = 0; i < ucount; i++)
2890 TreeSocket* Sock = list[i]->GetSocket();
2892 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+std::string(c->name)+" :"+text);
2898 virtual void OnUserMessage(userrec* user, void* dest, int target_type, std::string text)
2900 if (target_type == TYPE_USER)
2902 // route private messages which are targetted at clients only to the server
2903 // which needs to receive them
2904 userrec* d = (userrec*)dest;
2905 if ((d->fd < 0) && (user->fd > -1))
2907 std::deque<std::string> params;
2909 params.push_back(d->nick);
2910 params.push_back(":"+text);
2911 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
2918 chanrec *c = (chanrec*)dest;
2919 std::deque<TreeServer*> list;
2920 GetListOfServersForChannel(c,list);
2921 unsigned int ucount = list.size();
2922 for (unsigned int i = 0; i < ucount; i++)
2924 TreeSocket* Sock = list[i]->GetSocket();
2926 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+std::string(c->name)+" :"+text);
2932 virtual void OnBackgroundTimer(time_t curtime)
2934 AutoConnectServers(curtime);
2935 DoPingChecks(curtime);
2938 virtual void OnUserJoin(userrec* user, chanrec* channel)
2940 // Only do this for local users
2943 std::deque<std::string> params;
2945 params.push_back(channel->name);
2948 // if the channel has a key, force the join by emulating the key.
2949 params.push_back(channel->key);
2951 if (channel->GetUserCounter() > 1)
2953 // not the first in the channel
2954 DoOneToMany(user->nick,"JOIN",params);
2958 // first in the channel, set up their permissions
2959 // and the channel TS with FJOIN.
2961 snprintf(ts,24,"%lu",(unsigned long)channel->age);
2963 params.push_back(channel->name);
2964 params.push_back(ts);
2965 params.push_back("@"+std::string(user->nick));
2966 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
2971 virtual void OnChangeHost(userrec* user, std::string newhost)
2973 // only occurs for local clients
2974 if (user->registered != 7)
2976 std::deque<std::string> params;
2977 params.push_back(newhost);
2978 DoOneToMany(user->nick,"FHOST",params);
2981 virtual void OnChangeName(userrec* user, std::string gecos)
2983 // only occurs for local clients
2984 if (user->registered != 7)
2986 std::deque<std::string> params;
2987 params.push_back(gecos);
2988 DoOneToMany(user->nick,"FNAME",params);
2991 virtual void OnUserPart(userrec* user, chanrec* channel, std::string partmessage)
2995 std::deque<std::string> params;
2996 params.push_back(channel->name);
2997 if (partmessage != "")
2998 params.push_back(":"+partmessage);
2999 DoOneToMany(user->nick,"PART",params);
3003 virtual void OnUserConnect(userrec* user)
3005 char agestr[MAXBUF];
3008 std::deque<std::string> params;
3009 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
3010 params.push_back(agestr);
3011 params.push_back(user->nick);
3012 params.push_back(user->host);
3013 params.push_back(user->dhost);
3014 params.push_back(user->ident);
3015 params.push_back("+"+std::string(user->modes));
3016 params.push_back(user->ip);
3017 params.push_back(":"+std::string(user->fullname));
3018 DoOneToMany(Srv->GetServerName(),"NICK",params);
3020 // User is Local, change needs to be reflected!
3021 TreeServer* SourceServer = FindServer(user->server);
3023 SourceServer->AddUserCount();
3029 virtual void OnUserQuit(userrec* user, std::string reason)
3031 if ((user->fd > -1) && (user->registered == 7))
3033 std::deque<std::string> params;
3034 params.push_back(":"+reason);
3035 DoOneToMany(user->nick,"QUIT",params);
3037 // Regardless, We need to modify the user Counts..
3038 TreeServer* SourceServer = FindServer(user->server);
3040 SourceServer->DelUserCount();
3045 virtual void OnUserPostNick(userrec* user, std::string oldnick)
3049 std::deque<std::string> params;
3050 params.push_back(user->nick);
3051 DoOneToMany(oldnick,"NICK",params);
3055 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, std::string reason)
3057 if ((source) && (source->fd > -1))
3059 std::deque<std::string> params;
3060 params.push_back(chan->name);
3061 params.push_back(user->nick);
3062 params.push_back(":"+reason);
3063 DoOneToMany(source->nick,"KICK",params);
3067 virtual void OnRemoteKill(userrec* source, userrec* dest, std::string reason)
3069 std::deque<std::string> params;
3070 params.push_back(dest->nick);
3071 params.push_back(":"+reason);
3072 DoOneToMany(source->nick,"KILL",params);
3075 virtual void OnRehash(std::string parameter)
3077 if (parameter != "")
3079 std::deque<std::string> params;
3080 params.push_back(parameter);
3081 DoOneToMany(Srv->GetServerName(),"REHASH",params);
3083 if (Srv->MatchText(Srv->GetServerName(),parameter))
3085 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
3086 Srv->RehashServer();
3089 ReadConfiguration(false);
3092 // note: the protocol does not allow direct umode +o except
3093 // via NICK with 8 params. sending OPERTYPE infers +o modechange
3095 virtual void OnOper(userrec* user, std::string opertype)
3099 std::deque<std::string> params;
3100 params.push_back(opertype);
3101 DoOneToMany(user->nick,"OPERTYPE",params);
3105 void OnLine(userrec* source, std::string host, bool adding, char linetype, long duration, std::string reason)
3107 if (source->fd > -1)
3110 snprintf(type,8,"%cLINE",linetype);
3111 std::string stype = type;
3114 char sduration[MAXBUF];
3115 snprintf(sduration,MAXBUF,"%ld",duration);
3116 std::deque<std::string> params;
3117 params.push_back(host);
3118 params.push_back(sduration);
3119 params.push_back(":"+reason);
3120 DoOneToMany(source->nick,stype,params);
3124 std::deque<std::string> params;
3125 params.push_back(host);
3126 DoOneToMany(source->nick,stype,params);
3131 virtual void OnAddGLine(long duration, userrec* source, std::string reason, std::string hostmask)
3133 OnLine(source,hostmask,true,'G',duration,reason);
3136 virtual void OnAddZLine(long duration, userrec* source, std::string reason, std::string ipmask)
3138 OnLine(source,ipmask,true,'Z',duration,reason);
3141 virtual void OnAddQLine(long duration, userrec* source, std::string reason, std::string nickmask)
3143 OnLine(source,nickmask,true,'Q',duration,reason);
3146 virtual void OnAddELine(long duration, userrec* source, std::string reason, std::string hostmask)
3148 OnLine(source,hostmask,true,'E',duration,reason);
3151 virtual void OnDelGLine(userrec* source, std::string hostmask)
3153 OnLine(source,hostmask,false,'G',0,"");
3156 virtual void OnDelZLine(userrec* source, std::string ipmask)
3158 OnLine(source,ipmask,false,'Z',0,"");
3161 virtual void OnDelQLine(userrec* source, std::string nickmask)
3163 OnLine(source,nickmask,false,'Q',0,"");
3166 virtual void OnDelELine(userrec* source, std::string hostmask)
3168 OnLine(source,hostmask,false,'E',0,"");
3171 virtual void OnMode(userrec* user, void* dest, int target_type, std::string text)
3173 if ((user->fd > -1) && (user->registered == 7))
3175 if (target_type == TYPE_USER)
3177 userrec* u = (userrec*)dest;
3178 std::deque<std::string> params;
3179 params.push_back(u->nick);
3180 params.push_back(text);
3181 DoOneToMany(user->nick,"MODE",params);
3185 chanrec* c = (chanrec*)dest;
3186 std::deque<std::string> params;
3187 params.push_back(c->name);
3188 params.push_back(text);
3189 DoOneToMany(user->nick,"MODE",params);
3194 virtual void ProtoSendMode(void* opaque, int target_type, void* target, std::string modeline)
3196 TreeSocket* s = (TreeSocket*)opaque;
3199 if (target_type == TYPE_USER)
3201 userrec* u = (userrec*)target;
3202 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+modeline);
3206 chanrec* c = (chanrec*)target;
3207 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+modeline);
3212 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, std::string extname, std::string extdata)
3214 TreeSocket* s = (TreeSocket*)opaque;
3217 if (target_type == TYPE_USER)
3219 userrec* u = (userrec*)target;
3220 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
3224 chanrec* c = (chanrec*)target;
3225 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
3230 virtual ~ModuleSpanningTree()
3234 virtual Version GetVersion()
3236 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
3239 void Implements(char* List)
3241 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
3242 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
3243 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
3244 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
3245 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
3246 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
3247 List[I_OnStats] = List[I_ProtoSendMetaData] = 1;
3250 /* It is IMPORTANT that m_spanningtree is the last module in the chain
3251 * so that any activity it sees is FINAL, e.g. we arent going to send out
3252 * a NICK message before m_cloaking has finished putting the +x on the user,
3254 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
3255 * the module call queue.
3257 Priority Prioritize()
3259 return PRIORITY_LAST;
3264 class ModuleSpanningTreeFactory : public ModuleFactory
3267 ModuleSpanningTreeFactory()
3271 ~ModuleSpanningTreeFactory()
3275 virtual Module * CreateModule(Server* Me)
3277 TreeProtocolModule = new ModuleSpanningTree(Me);
3278 return TreeProtocolModule;
3284 extern "C" void * init_module( void )
3286 return new ModuleSpanningTreeFactory;