1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
25 #include "inspircd_config.h"
27 #include "configreader.h"
32 #include "commands/cmd_whois.h"
34 #include "helperfuncs.h"
36 #include "inspstring.h"
41 #include "cull_list.h"
44 #define nspace __gnu_cxx
47 * The server list in InspIRCd is maintained as two structures
48 * which hold the data in different ways. Most of the time, we
49 * want to very quicky obtain three pieces of information:
51 * (1) The information on a server
52 * (2) The information on the server we must send data through
53 * to actually REACH the server we're after
54 * (3) Potentially, the child/parent objects of this server
56 * The InspIRCd spanning protocol provides easy access to these
57 * by storing the data firstly in a recursive structure, where
58 * each item references its parent item, and a dynamic list
59 * of child items, and another structure which stores the items
60 * hashed, linearly. This means that if we want to find a server
61 * by name quickly, we can look it up in the hash, avoiding
62 * any O(n) lookups. If however, during a split or sync, we want
63 * to apply an operation to a server, and any of its child objects
64 * we can resort to recursion to walk the tree structure.
67 class ModuleSpanningTree;
68 static ModuleSpanningTree* TreeProtocolModule;
70 extern ServerConfig* Config;
71 extern InspIRCd* ServerInstance;
72 extern std::vector<Module*> modules;
73 extern std::vector<ircd_module*> factory;
76 /* Any socket can have one of five states at any one time.
77 * The LISTENER state indicates a socket which is listening
78 * for connections. It cannot receive data itself, only incoming
80 * The CONNECTING state indicates an outbound socket which is
81 * waiting to be writeable.
82 * The WAIT_AUTH_1 state indicates the socket is outbound and
83 * has successfully connected, but has not yet sent and received
85 * The WAIT_AUTH_2 state indicates that the socket is inbound
86 * (allocated by a LISTENER) but has not yet sent and received
88 * The CONNECTED state represents a fully authorized, fully
91 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
93 /* We need to import these from the core for use in netbursts */
94 extern user_hash clientlist;
95 extern chan_hash chanlist;
97 /* Foward declarations */
101 /* This variable represents the root of the server tree
102 * (for all intents and purposes, it's us)
104 TreeServer *TreeRoot;
108 /* This hash_map holds the hash equivalent of the server
109 * tree, used for rapid linear lookups.
111 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
112 server_hash serverlist;
114 /* More forward declarations */
115 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
116 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
117 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
118 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
119 void ReadConfiguration(bool rebind);
121 /* Flatten links and /MAP for non-opers */
123 /* Hide U-Lined servers in /MAP and /LINKS */
126 /* Imported from xline.cpp for use during netburst */
127 extern std::vector<KLine> klines;
128 extern std::vector<GLine> glines;
129 extern std::vector<ZLine> zlines;
130 extern std::vector<QLine> qlines;
131 extern std::vector<ELine> elines;
132 extern std::vector<KLine> pklines;
133 extern std::vector<GLine> pglines;
134 extern std::vector<ZLine> pzlines;
135 extern std::vector<QLine> pqlines;
136 extern std::vector<ELine> pelines;
138 /* Each server in the tree is represented by one class of
139 * type TreeServer. A locally connected TreeServer can
140 * have a class of type TreeSocket associated with it, for
141 * remote servers, the TreeSocket entry will be NULL.
142 * Each server also maintains a pointer to its parent
143 * (NULL if this server is ours, at the top of the tree)
144 * and a pointer to its "Route" (see the comments in the
145 * constructors below), and also a dynamic list of pointers
146 * to its children which can be iterated recursively
147 * if required. Creating or deleting objects of type
148 i* TreeServer automatically maintains the hash_map of
149 * TreeServer items, deleting and inserting them as they
150 * are created and destroyed.
153 class TreeServer : public classbase
155 TreeServer* Parent; /* Parent entry */
156 TreeServer* Route; /* Route entry */
157 std::vector<TreeServer*> Children; /* List of child objects */
158 irc::string ServerName; /* Server's name */
159 std::string ServerDesc; /* Server's description */
160 std::string VersionString; /* Version string or empty string */
161 int UserCount; /* Not used in this version */
162 int OperCount; /* Not used in this version */
163 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
164 time_t NextPing; /* After this time, the server should be PINGed*/
165 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
169 /* We don't use this constructor. Its a dummy, and won't cause any insertion
170 * of the TreeServer into the hash_map. See below for the two we DO use.
178 UserCount = OperCount = 0;
179 VersionString = Srv->GetVersion();
182 /* We use this constructor only to create the 'root' item, TreeRoot, which
183 * represents our own server. Therefore, it has no route, no parent, and
184 * no socket associated with it. Its version string is our own local version.
186 TreeServer(std::string Name, std::string Desc) : ServerName(Name.c_str()), ServerDesc(Desc)
190 UserCount = OperCount = 0;
191 VersionString = Srv->GetVersion();
193 Socket = NULL; /* Fix by brain */
197 /* When we create a new server, we call this constructor to initialize it.
198 * This constructor initializes the server's Route and Parent, and sets up
199 * its ping counters so that it will be pinged one minute from now.
201 TreeServer(std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock) : Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
204 UserCount = OperCount = 0;
205 this->SetNextPingTime(time(NULL) + 120);
208 /* find the 'route' for this server (e.g. the one directly connected
209 * to the local server, which we can use to reach it)
211 * In the following example, consider we have just added a TreeServer
212 * class for server G on our network, of which we are server A.
213 * To route traffic to G (marked with a *) we must send the data to
214 * B (marked with a +) so this algorithm initializes the 'Route'
215 * value to point at whichever server traffic must be routed through
216 * to get here. If we were to try this algorithm with server B,
217 * the Route pointer would point at its own object ('this').
227 * We only run this algorithm when a server is created, as
228 * the routes remain constant while ever the server exists, and
229 * do not need to be re-calculated.
233 if (Route == TreeRoot)
239 while (this->Route->GetParent() != TreeRoot)
241 this->Route = Route->GetParent();
245 /* Because recursive code is slow and takes a lot of resources,
246 * we store two representations of the server tree. The first
247 * is a recursive structure where each server references its
248 * children and its parent, which is used for netbursts and
249 * netsplits to dump the whole dataset to the other server,
250 * and the second is used for very fast lookups when routing
251 * messages and is instead a hash_map, where each item can
252 * be referenced by its server name. The AddHashEntry()
253 * call below automatically inserts each TreeServer class
254 * into the hash_map as it is created. There is a similar
255 * maintainance call in the destructor to tidy up deleted
259 this->AddHashEntry();
262 int QuitUsers(const std::string &reason)
264 log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
265 const char* reason_s = reason.c_str();
266 std::vector<userrec*> time_to_die;
267 for (user_hash::iterator n = clientlist.begin(); n != clientlist.end(); n++)
269 if (!strcmp(n->second->server, this->ServerName.c_str()))
271 time_to_die.push_back(n->second);
274 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
276 userrec* a = (userrec*)*n;
277 log(DEBUG,"Kill %s fd=%d",a->nick,a->fd);
279 kill_link(a,reason_s);
281 return time_to_die.size();
284 /* This method is used to add the structure to the
285 * hash_map for linear searches. It is only called
286 * by the constructors.
290 server_hash::iterator iter;
291 iter = serverlist.find(this->ServerName.c_str());
292 if (iter == serverlist.end())
293 serverlist[this->ServerName.c_str()] = this;
296 /* This method removes the reference to this object
297 * from the hash_map which is used for linear searches.
298 * It is only called by the default destructor.
302 server_hash::iterator iter;
303 iter = serverlist.find(this->ServerName.c_str());
304 if (iter != serverlist.end())
305 serverlist.erase(iter);
308 /* These accessors etc should be pretty self-
312 TreeServer* GetRoute()
317 std::string GetName()
319 return ServerName.c_str();
322 std::string GetDesc()
327 std::string GetVersion()
329 return VersionString;
332 void SetNextPingTime(time_t t)
335 LastPingWasGood = false;
338 time_t NextPingTime()
343 bool AnsweredLastPing()
345 return LastPingWasGood;
350 LastPingWasGood = true;
373 TreeSocket* GetSocket()
378 TreeServer* GetParent()
383 void SetVersion(std::string Version)
385 VersionString = Version;
388 unsigned int ChildCount()
390 return Children.size();
393 TreeServer* GetChild(unsigned int n)
395 if (n < Children.size())
397 /* Make sure they cant request
398 * an out-of-range object. After
399 * all we know what these programmer
400 * types are like *grin*.
410 void AddChild(TreeServer* Child)
412 Children.push_back(Child);
415 bool DelChild(TreeServer* Child)
417 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
428 /* Removes child nodes of this node, and of that node, etc etc.
429 * This is used during netsplits to automatically tidy up the
430 * server tree. It is slow, we don't use it for much else.
434 bool stillchildren = true;
435 while (stillchildren)
437 stillchildren = false;
438 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
440 TreeServer* s = (TreeServer*)*a;
444 stillchildren = true;
453 /* We'd better tidy up after ourselves, eh? */
454 this->DelHashEntry();
458 /* The Link class might as well be a struct,
459 * but this is C++ and we don't believe in structs (!).
460 * It holds the entire information of one <link>
461 * tag from the main config file. We maintain a list
462 * of them, and populate the list on rehash/load.
465 class Link : public classbase
471 std::string SendPass;
472 std::string RecvPass;
473 unsigned long AutoConnect;
474 time_t NextConnectTime;
475 std::string EncryptionKey;
476 bool HiddenFromStats;
479 /* The usual stuff for inspircd modules,
480 * plus the vector of Link classes which we
481 * use to store the <link> tags from the config
485 std::vector<Link> LinkBlocks;
487 /* Yay for fast searches!
488 * This is hundreds of times faster than recursion
489 * or even scanning a linked list, especially when
490 * there are more than a few servers to deal with.
493 TreeServer* FindServer(std::string ServerName)
495 server_hash::iterator iter;
496 iter = serverlist.find(ServerName.c_str());
497 if (iter != serverlist.end())
507 /* Returns the locally connected server we must route a
508 * message through to reach server 'ServerName'. This
509 * only applies to one-to-one and not one-to-many routing.
510 * See the comments for the constructor of TreeServer
513 TreeServer* BestRouteTo(std::string ServerName)
515 if (ServerName.c_str() == TreeRoot->GetName())
517 TreeServer* Found = FindServer(ServerName);
520 return Found->GetRoute();
528 /* Find the first server matching a given glob mask.
529 * Theres no find-using-glob method of hash_map [awwww :-(]
530 * so instead, we iterate over the list using an iterator
531 * and match each one until we get a hit. Yes its slow,
534 TreeServer* FindServerMask(std::string ServerName)
536 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
538 if (Srv->MatchText(i->first.c_str(),ServerName))
544 /* A convenient wrapper that returns true if a server exists */
545 bool IsServer(std::string ServerName)
547 return (FindServer(ServerName) != NULL);
551 class cmd_rconnect : public command_t
555 cmd_rconnect (Module* Callback) : command_t("RCONNECT", 'o', 2), Creator(Callback)
557 this->source = "m_spanningtree.so";
560 void Handle (const char** parameters, int pcnt, userrec *user)
562 WriteServ(user->fd,"NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
563 /* Is this aimed at our server? */
564 if (Srv->MatchText(Srv->GetServerName(),parameters[0]))
566 /* Yes, initiate the given connect */
567 WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
569 para[0] = parameters[1];
570 Creator->OnPreCommand("CONNECT", para, 1, user, true);
577 /* Every SERVER connection inbound or outbound is represented by
578 * an object of type TreeSocket.
579 * TreeSockets, being inherited from InspSocket, can be tied into
580 * the core socket engine, and we cn therefore receive activity events
581 * for them, just like activex objects on speed. (yes really, that
582 * is a technical term!) Each of these which relates to a locally
583 * connected server is assocated with it, by hooking it onto a
584 * TreeSocket class using its constructor. In this way, we can
585 * maintain a list of servers, some of which are directly connected,
586 * some of which are not.
589 class TreeSocket : public InspSocket
592 std::string in_buffer;
593 ServerState LinkState;
594 std::string InboundServerName;
595 std::string InboundDescription;
597 int num_lost_servers;
599 bool LastPingWasGood;
603 unsigned int keylength;
607 /* Because most of the I/O gubbins are encapsulated within
608 * InspSocket, we just call the superclass constructor for
609 * most of the action, and append a few of our own values
612 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
613 : InspSocket(host, port, listening, maxtime)
616 this->LinkState = LISTENER;
618 this->ctx_out = NULL;
621 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
622 : InspSocket(host, port, listening, maxtime)
625 this->LinkState = CONNECTING;
627 this->ctx_out = NULL;
630 /* When a listening socket gives us a new file descriptor,
631 * we must associate it with a socket without creating a new
632 * connection. This constructor is used for this purpose.
634 TreeSocket(int newfd, char* ip)
635 : InspSocket(newfd, ip)
637 this->LinkState = WAIT_AUTH_1;
639 this->ctx_out = NULL;
640 this->SendCapabilities();
651 void InitAES(std::string key,std::string SName)
658 log(DEBUG,"Initialized AES key %s",key.c_str());
659 // key must be 16, 24, 32 etc bytes (multiple of 8)
660 keylength = key.length();
661 if (!(keylength == 16 || keylength == 24 || keylength == 32))
663 WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
664 log(DEBUG,"Key length not 16, 24 or 32 characters!");
668 WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
669 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\
670 \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);
671 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\
672 \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);
676 /* When an outbound connection finishes connecting, we receive
677 * this event, and must send our SERVER string to the other
678 * side. If the other side is happy, as outlined in the server
679 * to server docs on the inspircd.org site, the other side
680 * will then send back its own server string.
682 virtual bool OnConnected()
684 if (this->LinkState == CONNECTING)
686 /* we do not need to change state here. */
687 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
689 if (x->Name == this->myhost)
691 Srv->SendOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
692 this->SendCapabilities();
693 if (x->EncryptionKey != "")
695 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
697 WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
701 this->WriteLine("AES "+Srv->GetServerName());
702 this->InitAES(x->EncryptionKey,x->Name.c_str());
705 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
706 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
711 /* There is a (remote) chance that between the /CONNECT and the connection
712 * being accepted, some muppet has removed the <link> block and rehashed.
713 * If that happens the connection hangs here until it's closed. Unlikely
714 * and rather harmless.
716 Srv->SendOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
720 virtual void OnError(InspSocketError e)
722 /* We don't handle this method, because all our
723 * dirty work is done in OnClose() (see below)
724 * which is still called on error conditions too.
726 if (e == I_ERR_CONNECT)
728 Srv->SendOpers("*** Connection failed: Connection refused");
732 virtual int OnDisconnect()
734 /* For the same reason as above, we don't
735 * handle OnDisconnect()
740 /* Recursively send the server tree with distances as hops.
741 * This is used during network burst to inform the other server
742 * (and any of ITS servers too) of what servers we know about.
743 * If at any point any of these servers already exist on the other
744 * end, our connection may be terminated. The hopcounts given
745 * by this function are relative, this doesn't matter so long as
746 * they are all >1, as all the remote servers re-calculate them
747 * to be relative too, with themselves as hop 0.
749 void SendServers(TreeServer* Current, TreeServer* s, int hops)
752 for (unsigned int q = 0; q < Current->ChildCount(); q++)
754 TreeServer* recursive_server = Current->GetChild(q);
755 if (recursive_server != s)
757 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
758 this->WriteLine(command);
759 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
760 /* down to next level */
761 this->SendServers(recursive_server, s, hops+1);
766 std::string MyCapabilities()
768 ServerConfig* Config = Srv->GetConfig();
769 std::vector<std::string> modlist;
770 std::string capabilities = "";
772 for (int i = 0; i <= MODCOUNT; i++)
774 if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
775 modlist.push_back(Config->module_names[i]);
777 sort(modlist.begin(),modlist.end());
778 for (unsigned int i = 0; i < modlist.size(); i++)
781 capabilities = capabilities + ",";
782 capabilities = capabilities + modlist[i];
787 void SendCapabilities()
789 this->WriteLine("CAPAB "+MyCapabilities());
792 bool Capab(std::deque<std::string> params)
794 if (params.size() != 1)
796 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
800 if (params[0] != this->MyCapabilities())
802 std::string quitserver = this->myhost;
803 if (this->InboundServerName != "")
805 quitserver = this->InboundServerName;
808 WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
809 WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
810 WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
811 WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
812 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
819 /* This function forces this server to quit, removing this server
820 * and any users on it (and servers and users below that, etc etc).
821 * It's very slow and pretty clunky, but luckily unless your network
822 * is having a REAL bad hair day, this function shouldnt be called
823 * too many times a month ;-)
825 void SquitServer(std::string &from, TreeServer* Current)
827 /* recursively squit the servers attached to 'Current'.
828 * We're going backwards so we don't remove users
829 * while we still need them ;)
831 for (unsigned int q = 0; q < Current->ChildCount(); q++)
833 TreeServer* recursive_server = Current->GetChild(q);
834 this->SquitServer(from,recursive_server);
836 /* Now we've whacked the kids, whack self */
838 num_lost_users += Current->QuitUsers(from);
839 /*for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
841 if (!strcasecmp(u->second->server,Current->GetName().c_str()))
843 Goners->AddItem(u->second,from);
849 /* This is a wrapper function for SquitServer above, which
850 * does some validation first and passes on the SQUIT to all
851 * other remaining servers.
853 void Squit(TreeServer* Current,std::string reason)
855 if ((Current) && (Current != TreeRoot))
857 std::deque<std::string> params;
858 params.push_back(Current->GetName());
859 params.push_back(":"+reason);
860 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
861 if (Current->GetParent() == TreeRoot)
863 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
867 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
869 num_lost_servers = 0;
871 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
872 SquitServer(from, Current);
874 Current->GetParent()->DelChild(Current);
876 WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
880 log(DEFAULT,"Squit from unknown server");
885 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
887 if (params.size() < 3)
889 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
892 userrec* who = new userrec();
893 who->fd = FD_MAGIC_NUMBER;
894 const char* modelist[64];
897 memset(&modelist,0,sizeof(modelist));
898 for (unsigned int q = 0; q < params.size(); q++, n++)
903 TS = atoi(params[q].c_str());
905 modelist[n] = params[q].c_str();
907 // Insert the TS value of the object, either userrec or chanrec
908 userrec* a = Srv->FindNick(params[0]);
914 //classbase* a = reinterpret_cast<classbase*>(Srv->FindNick(params[0]));
917 chanrec* a = Srv->FindChannel(params[0]);
923 /* U-lined servers always win regardless of their TS */
924 if ((TS > ourTS) && (!Srv->IsUlined(source)))
926 /* Bounce the mode back to its sender.
927 * We use our higher TS, so the other end
928 * SHOULD accept it, if its clock is right.
929 * If its clock is wrong well bully for you :p
931 params[1] = ConvToStr(ourTS);
932 /* Invert the mode string by changing + to -,
933 * and - to + in the first param.
935 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
947 DoOneToOne(source,"FMODE",params,source);
948 log(DEBUG,"Mode bounced, our TS less than theirs");
952 if ((Srv->IsUlined(source)) && (TS > ourTS))
954 WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",source.c_str(),params[0].c_str());
957 Srv->SendMode(modelist,params.size(),who);
958 DoOneToAllButSender(source,"FMODE",params,source);
965 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
967 if (params.size() != 4)
969 time_t ts = atoi(params[1].c_str());
970 std::string nsource = source;
972 chanrec* c = Srv->FindChannel(params[0]);
975 if ((ts >= c->topicset) || (!*c->topic))
977 std::string oldtopic = c->topic;
978 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
979 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
981 /* if the topic text is the same as the current topic,
982 * dont bother to send the TOPIC command out, just silently
983 * update the set time and set nick.
985 if (oldtopic != params[3])
987 userrec* user = Srv->FindNick(source);
990 WriteChannelWithServ(source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
994 WriteChannel(c, user, "TOPIC %s :%s", c->name, c->topic);
995 nsource = user->server;
997 /* all done, send it on its way */
998 params[3] = ":" + params[3];
999 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1008 /* FJOIN, similar to unreal SJOIN */
1009 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1011 if (params.size() < 3)
1015 char modestring[MAXBUF];
1016 char* mode_users[127];
1017 memset(&mode_users,0,sizeof(mode_users));
1018 mode_users[0] = first;
1019 mode_users[1] = modestring;
1021 unsigned int modectr = 2;
1023 userrec* who = NULL;
1024 std::string channel = params[0];
1025 time_t TS = atoi(params[1].c_str());
1028 chanrec* chan = Srv->FindChannel(channel);
1033 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1035 /* default is a high value, which if we dont have this
1036 * channel will let the other side apply their modes.
1038 time_t ourTS = time(NULL)+600;
1039 chanrec* us = Srv->FindChannel(channel);
1045 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1047 /* do this first, so our mode reversals are correctly received by other servers
1048 * if there is a TS collision.
1050 DoOneToAllButSender(source,"FJOIN",params,source);
1052 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
1054 /* process one channel at a time, applying modes. */
1055 char* usr = (char*)params[usernum].c_str();
1056 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1057 * (is this even possible?) */
1060 char permissions = *usr;
1061 switch (permissions)
1065 mode_users[modectr++] = usr;
1066 strlcat(modestring,"o",MAXBUF);
1070 mode_users[modectr++] = usr;
1071 strlcat(modestring,"h",MAXBUF);
1075 mode_users[modectr++] = usr;
1076 strlcat(modestring,"v",MAXBUF);
1079 who = Srv->FindNick(usr);
1082 Srv->JoinUserToChannel(who,channel,key);
1083 if (modectr >= (MAXMODES-1))
1085 /* theres a mode for this user. push them onto the mode queue, and flush it
1086 * if there are more than MAXMODES to go.
1088 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
1090 /* We also always let u-lined clients win, no matter what the TS value */
1091 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1092 Srv->SendMode((const char**)mode_users,modectr,who);
1095 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1101 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1102 /* bouncy bouncy! */
1103 std::deque<std::string> params;
1104 /* modes are now being UNSET... */
1105 *mode_users[1] = '-';
1106 for (unsigned int x = 0; x < modectr; x++)
1110 params.push_back(ConvToStr(us->age));
1112 params.push_back(mode_users[x]);
1114 // tell everyone to bounce the modes. bad modes, bad!
1115 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1117 strcpy(mode_users[1],"+");
1123 /* there werent enough modes built up to flush it during FJOIN,
1124 * or, there are a number left over. flush them out.
1126 if ((modectr > 2) && (who))
1130 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1131 Srv->SendMode((const char**)mode_users,modectr,who);
1134 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1140 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1141 std::deque<std::string> params;
1142 *mode_users[1] = '-';
1143 for (unsigned int x = 0; x < modectr; x++)
1147 params.push_back(ConvToStr(us->age));
1149 params.push_back(mode_users[x]);
1151 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1157 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1159 if (params.size() >= 2)
1161 chanrec* c = Srv->FindChannel(params[0]);
1164 time_t theirTS = atoi(params[1].c_str());
1165 time_t ourTS = c->age;
1166 if (ourTS >= theirTS)
1168 log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1173 DoOneToAllButSender(Srv->GetServerName(),"SYNCTS",params,source);
1178 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1180 if (params.size() < 8)
1182 if (params.size() > 8)
1184 this->WriteLine(":"+Srv->GetServerName()+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1187 // NICK age nick host dhost ident +modes ip :gecos
1189 time_t age = atoi(params[0].c_str());
1191 /* This used to have a pretty craq'y loop doing the same thing,
1192 * now we just let the STL do the hard work (more efficiently)
1194 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1196 const char* tempnick = params[1].c_str();
1197 log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1199 user_hash::iterator iter = clientlist.find(tempnick);
1201 if (iter != clientlist.end())
1204 log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1205 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
1209 clientlist[tempnick] = new userrec();
1210 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
1211 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX-1);
1212 strlcpy(clientlist[tempnick]->host, params[2].c_str(),63);
1213 strlcpy(clientlist[tempnick]->dhost, params[3].c_str(),63);
1214 clientlist[tempnick]->server = FindServerNamePtr(source.c_str());
1215 strlcpy(clientlist[tempnick]->ident, params[4].c_str(),IDENTMAX);
1216 strlcpy(clientlist[tempnick]->fullname, params[7].c_str(),MAXGECOS);
1217 clientlist[tempnick]->registered = 7;
1218 clientlist[tempnick]->signon = age;
1220 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1222 clientlist[tempnick]->modes[(*v)-65] = 1;
1224 inet_aton(params[6].c_str(),&clientlist[tempnick]->ip4);
1226 WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host, inet_ntoa(clientlist[tempnick]->ip4));
1228 params[7] = ":" + params[7];
1229 DoOneToAllButSender(source,"NICK",params,source);
1231 // Increment the Source Servers User Count..
1232 TreeServer* SourceServer = FindServer(source);
1235 log(DEBUG,"Found source server of %s",clientlist[tempnick]->nick);
1236 SourceServer->AddUserCount();
1242 /* Send one or more FJOINs for a channel of users.
1243 * If the length of a single line is more than 480-NICKMAX
1244 * in length, it is split over multiple lines.
1246 void SendFJoins(TreeServer* Current, chanrec* c)
1248 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1250 std::string individual_halfops = ":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age);
1252 size_t dlen, curlen;
1253 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1255 char* ptr = list + dlen;
1257 CUList *ulist = c->GetUsers();
1258 std::vector<userrec*> specific_halfop;
1259 std::vector<userrec*> specific_voice;
1260 std::string modes = "";
1261 std::string params = "";
1263 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1265 int x = cflags(i->second,c);
1266 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1268 specific_halfop.push_back(i->second);
1270 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1272 specific_voice.push_back(i->second);
1280 else if (x & UCMODE_HOP)
1284 else if (x & UCMODE_VOICE)
1289 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s", n, i->second->nick);
1296 if (curlen > (480-NICKMAX))
1298 this->WriteLine(list);
1299 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1303 for (unsigned int y = 0; y < specific_voice.size(); y++)
1306 params.append(specific_voice[y]->nick).append(" ");
1307 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1309 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1312 params.append(specific_halfop[y]->nick).append(" ");
1313 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1319 this->WriteLine(list);
1320 for (unsigned int y = 0; y < specific_voice.size(); y++)
1323 params.append(specific_voice[y]->nick).append(" ");
1324 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1326 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1329 params.append(specific_halfop[y]->nick).append(" ");
1330 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1333 //std::string modes = "";
1334 //std::string params = "";
1335 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1338 params.append(b->data).append(" ");
1340 /* XXX: Send each channel mode and its params -- we'll need a method for this in ModeHandler? */
1341 //FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1342 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+chanmodes(c,true)+modes+" "+params);
1345 /* Send G, Q, Z and E lines */
1346 void SendXLines(TreeServer* Current)
1349 std::string n = Srv->GetServerName();
1350 const char* sn = n.c_str();
1352 /* Yes, these arent too nice looking, but they get the job done */
1353 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++, iterations++)
1355 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1356 this->WriteLine(data);
1358 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++, iterations++)
1360 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1361 this->WriteLine(data);
1363 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++, iterations++)
1365 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1366 this->WriteLine(data);
1368 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++, iterations++)
1370 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1371 this->WriteLine(data);
1373 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++, iterations++)
1375 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1376 this->WriteLine(data);
1378 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++, iterations++)
1380 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1381 this->WriteLine(data);
1383 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++, iterations++)
1385 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1386 this->WriteLine(data);
1388 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++, iterations++)
1390 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1391 this->WriteLine(data);
1395 /* Send channel modes and topics */
1396 void SendChannelModes(TreeServer* Current)
1399 std::deque<std::string> list;
1401 std::string n = Srv->GetServerName();
1402 const char* sn = n.c_str();
1403 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++, iterations++)
1405 SendFJoins(Current, c->second);
1406 if (*c->second->topic)
1408 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1409 this->WriteLine(data);
1411 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1413 c->second->GetExtList(list);
1414 for (unsigned int j = 0; j < list.size(); j++)
1416 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1421 /* send all users and their oper state/modes */
1422 void SendUsers(TreeServer* Current)
1425 std::deque<std::string> list;
1427 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++, iterations++)
1429 if (u->second->registered == 7)
1431 snprintf(data,MAXBUF,":%s NICK %lu %s %s %s %s +%s %s :%s",u->second->server,(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->FormatModes(),inet_ntoa(u->second->ip4),u->second->fullname);
1432 this->WriteLine(data);
1433 if (*u->second->oper)
1435 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1437 if (*u->second->awaymsg)
1439 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1441 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1443 u->second->GetExtList(list);
1444 for (unsigned int j = 0; j < list.size(); j++)
1446 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1452 /* This function is called when we want to send a netburst to a local
1453 * server. There is a set order we must do this, because for example
1454 * users require their servers to exist, and channels require their
1455 * users to exist. You get the idea.
1457 void DoBurst(TreeServer* s)
1459 /* The calls here to ServerInstance-> yield the processing
1460 * back to the core so that a large burst is split into at least 6 sections
1463 std::string burst = "BURST "+ConvToStr(time(NULL));
1464 std::string endburst = "ENDBURST";
1465 // Because by the end of the netburst, it could be gone!
1466 std::string name = s->GetName();
1467 Srv->SendOpers("*** Bursting to \2"+name+"\2.");
1468 this->WriteLine(burst);
1469 /* send our version string */
1470 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1471 /* Send server tree */
1472 this->SendServers(TreeRoot,s,1);
1473 /* Send users and their oper status */
1475 /* Send everything else (channel modes, xlines etc) */
1476 this->SendChannelModes(s);
1477 this->SendXLines(s);
1478 FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1479 this->WriteLine(endburst);
1480 Srv->SendOpers("*** Finished bursting to \2"+name+"\2.");
1483 /* This function is called when we receive data from a remote
1484 * server. We buffer the data in a std::string (it doesnt stay
1485 * there for long), reading using InspSocket::Read() which can
1486 * read up to 16 kilobytes in one operation.
1488 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1489 * THE SOCKET OBJECT FOR US.
1491 virtual bool OnDataReady()
1493 char* data = this->Read();
1494 /* Check that the data read is a valid pointer and it has some content */
1497 this->in_buffer.append(data);
1498 /* While there is at least one new line in the buffer,
1499 * do something useful (we hope!) with it.
1501 while (in_buffer.find("\n") != std::string::npos)
1503 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1504 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1505 if (ret.find("\r") != std::string::npos)
1506 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1507 /* Process this one, abort if it
1508 * didnt return true.
1514 memset(result,0,1024);
1516 log(DEBUG,"Original string '%s'",ret.c_str());
1517 /* ERROR + CAPAB is still allowed unencryped */
1518 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1520 int nbytes = from64tobits(out, ret.c_str(), 1024);
1521 if ((nbytes > 0) && (nbytes < 1024))
1523 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1524 ctx_in->Decrypt(out, result, nbytes, 0);
1525 for (int t = 0; t < nbytes; t++)
1526 if (result[t] == '\7') result[t] = 0;
1531 if (!this->ProcessLine(ret))
1533 log(DEBUG,"ProcessLine says no!");
1539 /* EAGAIN returns an empty but non-NULL string, so this
1540 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1542 return (data && !*data);
1545 int WriteLine(std::string line)
1547 log(DEBUG,"OUT: %s",line.c_str());
1551 char result64[10240];
1552 if (this->keylength)
1554 // pad it to the key length
1555 int n = this->keylength - (line.length() % this->keylength);
1558 log(DEBUG,"Append %d chars to line to make it %d long from %d, key length %d",n,n+line.length(),line.length(),this->keylength);
1559 line.append(n,'\7');
1562 unsigned int ll = line.length();
1563 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1564 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1566 //int from64tobits(char *out, const char *in, int maxlen);
1568 return this->Write(line + "\r\n");
1571 /* Handle ERROR command */
1572 bool Error(std::deque<std::string> ¶ms)
1574 if (params.size() < 1)
1576 WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1577 /* we will return false to cause the socket to close. */
1581 /* Because the core won't let users or even SERVERS set +o,
1582 * we use the OPERTYPE command to do this.
1584 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1586 if (params.size() != 1)
1588 log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1591 std::string opertype = params[0];
1592 userrec* u = Srv->FindNick(prefix);
1595 u->modes[UM_OPERATOR] = 1;
1596 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1597 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1602 /* Because Andy insists that services-compatible servers must
1603 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1605 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1607 if (params.size() < 3)
1610 userrec* u = Srv->FindNick(params[0]);
1614 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1617 std::deque<std::string> par;
1618 par.push_back(params[1]);
1619 /* This is not required as one is sent in OnUserPostNick below
1621 //DoOneToMany(u->nick,"NICK",par);
1622 Srv->ChangeUserNick(u,params[1]);
1623 u->age = atoi(params[2].c_str());
1629 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1631 if (params.size() < 2)
1634 userrec* u = Srv->FindNick(params[0]);
1638 Srv->JoinUserToChannel(u,params[1],"");
1639 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1644 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1646 if (params.size() < 1)
1649 std::string servermask = params[0];
1651 if (Srv->MatchText(Srv->GetServerName(),servermask))
1653 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1654 Srv->RehashServer();
1655 ReadConfiguration(false);
1657 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1661 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1663 if (params.size() != 2)
1666 std::string nick = params[0];
1667 userrec* u = Srv->FindNick(prefix);
1668 userrec* who = Srv->FindNick(nick);
1672 /* Prepend kill source, if we don't have one */
1673 std::string sourceserv = prefix;
1676 sourceserv = u->server;
1678 if (*(params[1].c_str()) != '[')
1680 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1682 std::string reason = params[1];
1683 params[1] = ":" + params[1];
1684 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1685 ::Write(who->fd, ":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
1686 Srv->QuitUser(who,reason);
1691 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1693 if (params.size() < 1)
1696 if (params.size() == 1)
1698 TreeServer* ServerSource = FindServer(prefix);
1701 ServerSource->SetPingFlag();
1706 std::string forwardto = params[1];
1707 if (forwardto == Srv->GetServerName())
1710 * this is a PONG for us
1711 * if the prefix is a user, check theyre local, and if they are,
1712 * dump the PONG reply back to their fd. If its a server, do nowt.
1713 * Services might want to send these s->s, but we dont need to yet.
1715 userrec* u = Srv->FindNick(prefix);
1719 WriteServ(u->fd,"PONG %s %s",params[0].c_str(),params[1].c_str());
1724 // not for us, pass it on :)
1725 DoOneToOne(prefix,"PONG",params,forwardto);
1732 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
1734 if (params.size() < 3)
1737 TreeServer* ServerSource = FindServer(prefix);
1741 if (params[0] == "*")
1743 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
1745 else if (*(params[0].c_str()) == '#')
1747 chanrec* c = Srv->FindChannel(params[0]);
1750 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
1753 else if (*(params[0].c_str()) != '#')
1755 userrec* u = Srv->FindNick(params[0]);
1758 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
1763 params[2] = ":" + params[2];
1764 DoOneToAllButSender(prefix,"METADATA",params,prefix);
1768 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
1770 if (params.size() < 1)
1773 TreeServer* ServerSource = FindServer(prefix);
1777 ServerSource->SetVersion(params[0]);
1779 params[0] = ":" + params[0];
1780 DoOneToAllButSender(prefix,"VERSION",params,prefix);
1784 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
1786 if (params.size() < 1)
1789 userrec* u = Srv->FindNick(prefix);
1793 Srv->ChangeHost(u,params[0]);
1794 DoOneToAllButSender(prefix,"FHOST",params,u->server);
1799 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
1801 if (params.size() < 6)
1804 bool propogate = false;
1806 switch (*(params[0].c_str()))
1809 propogate = add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1810 zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1813 propogate = add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1814 qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1817 propogate = add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1818 eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1821 propogate = add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1822 gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1825 propogate = add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1828 /* Just in case... */
1829 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
1834 /* Send it on its way */
1837 if (atoi(params[4].c_str()))
1839 WriteOpers("*** %s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
1843 WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
1845 params[5] = ":" + params[5];
1846 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
1848 if (!this->bursting)
1850 log(DEBUG,"Applying lines...");
1851 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
1856 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
1858 if (params.size() < 1)
1861 userrec* u = Srv->FindNick(prefix);
1865 Srv->ChangeGECOS(u,params[0]);
1866 params[0] = ":" + params[0];
1867 DoOneToAllButSender(prefix,"FNAME",params,u->server);
1872 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
1874 if (params.size() < 1)
1877 log(DEBUG,"In IDLE command");
1878 userrec* u = Srv->FindNick(prefix);
1882 log(DEBUG,"USER EXISTS: %s",u->nick);
1883 // an incoming request
1884 if (params.size() == 1)
1886 userrec* x = Srv->FindNick(params[0]);
1887 if ((x) && (x->fd > -1))
1889 userrec* x = Srv->FindNick(params[0]);
1890 log(DEBUG,"Got IDLE");
1891 char signon[MAXBUF];
1893 log(DEBUG,"Sending back IDLE 3");
1894 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
1895 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
1896 std::deque<std::string> par;
1897 par.push_back(prefix);
1898 par.push_back(signon);
1899 par.push_back(idle);
1900 // ours, we're done, pass it BACK
1901 DoOneToOne(params[0],"IDLE",par,u->server);
1905 // not ours pass it on
1906 DoOneToOne(prefix,"IDLE",params,x->server);
1909 else if (params.size() == 3)
1911 std::string who_did_the_whois = params[0];
1912 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
1913 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1915 log(DEBUG,"Got final IDLE");
1916 // an incoming reply to a whois we sent out
1917 std::string nick_whoised = prefix;
1918 unsigned long signon = atoi(params[1].c_str());
1919 unsigned long idle = atoi(params[2].c_str());
1920 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1921 do_whois(who_to_send_to,u,signon,idle,nick_whoised.c_str());
1925 // not ours, pass it on
1926 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
1933 bool Push(std::string prefix, std::deque<std::string> ¶ms)
1935 if (params.size() < 2)
1938 userrec* u = Srv->FindNick(params[0]);
1945 // push the raw to the user
1946 if (Srv->IsUlined(prefix))
1948 ::Write(u->fd,"%s",params[1].c_str());
1952 log(DEBUG,"PUSH from non-ulined server dropped into the bit-bucket: :%s PUSH %s :%s",prefix.c_str(),params[0].c_str(),params[1].c_str());
1957 // continue the raw onwards
1958 params[1] = ":" + params[1];
1959 DoOneToOne(prefix,"PUSH",params,u->server);
1964 bool Time(std::string prefix, std::deque<std::string> ¶ms)
1966 // :source.server TIME remote.server sendernick
1967 // :remote.server TIME source.server sendernick TS
1968 if (params.size() == 2)
1970 // someone querying our time?
1971 if (Srv->GetServerName() == params[0])
1973 userrec* u = Srv->FindNick(params[1]);
1977 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
1978 params.push_back(curtime);
1980 DoOneToOne(Srv->GetServerName(),"TIME",params,params[0]);
1985 // not us, pass it on
1986 userrec* u = Srv->FindNick(params[1]);
1988 DoOneToOne(prefix,"TIME",params,params[0]);
1991 else if (params.size() == 3)
1993 // a response to a previous TIME
1994 userrec* u = Srv->FindNick(params[1]);
1995 if ((u) && (IS_LOCAL(u)))
1997 time_t rawtime = atol(params[2].c_str());
1998 struct tm * timeinfo;
1999 timeinfo = localtime(&rawtime);
2001 snprintf(tms,26,"%s",asctime(timeinfo));
2003 WriteServ(u->fd,"391 %s %s :%s",u->nick,prefix.c_str(),tms);
2008 DoOneToOne(prefix,"TIME",params,u->server);
2014 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2016 if (params.size() < 1)
2019 if (params.size() == 1)
2021 std::string stufftobounce = params[0];
2022 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
2027 std::string forwardto = params[1];
2028 if (forwardto == Srv->GetServerName())
2030 // this is a ping for us, send back PONG to the requesting server
2031 params[1] = params[0];
2032 params[0] = forwardto;
2033 DoOneToOne(forwardto,"PONG",params,params[1]);
2037 // not for us, pass it on :)
2038 DoOneToOne(prefix,"PING",params,forwardto);
2044 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2046 if (params.size() < 4)
2049 std::string servername = params[0];
2050 std::string password = params[1];
2051 // hopcount is not used for a remote server, we calculate this ourselves
2052 std::string description = params[3];
2053 TreeServer* ParentOfThis = FindServer(prefix);
2057 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2060 TreeServer* CheckDupe = FindServer(servername);
2063 this->WriteLine("ERROR :Server "+servername+" already exists!");
2064 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2067 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
2068 ParentOfThis->AddChild(Node);
2069 params[3] = ":" + params[3];
2070 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2071 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2075 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2077 if (params.size() < 4)
2080 irc::string servername = params[0].c_str();
2081 std::string sname = params[0];
2082 std::string password = params[1];
2083 int hops = atoi(params[2].c_str());
2087 this->WriteLine("ERROR :Server too far away for authentication");
2088 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2091 std::string description = params[3];
2092 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2094 if ((x->Name == servername) && (x->RecvPass == password))
2096 TreeServer* CheckDupe = FindServer(sname);
2099 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2100 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2103 // Begin the sync here. this kickstarts the
2104 // other side, waiting in WAIT_AUTH_2 state,
2105 // into starting their burst, as it shows
2106 // that we're happy.
2107 this->LinkState = CONNECTED;
2108 // we should add the details of this server now
2109 // to the servers tree, as a child of the root
2111 TreeServer* Node = new TreeServer(sname,description,TreeRoot,this);
2112 TreeRoot->AddChild(Node);
2113 params[3] = ":" + params[3];
2114 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2115 this->bursting = true;
2116 this->DoBurst(Node);
2120 this->WriteLine("ERROR :Invalid credentials");
2121 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2125 bool Inbound_Server(std::deque<std::string> ¶ms)
2127 if (params.size() < 4)
2130 irc::string servername = params[0].c_str();
2131 std::string sname = params[0];
2132 std::string password = params[1];
2133 int hops = atoi(params[2].c_str());
2137 this->WriteLine("ERROR :Server too far away for authentication");
2138 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2141 std::string description = params[3];
2142 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2144 if ((x->Name == servername) && (x->RecvPass == password))
2146 TreeServer* CheckDupe = FindServer(sname);
2149 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2150 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2153 /* If the config says this link is encrypted, but the remote side
2154 * hasnt bothered to send the AES command before SERVER, then we
2155 * boot them off as we MUST have this connection encrypted.
2157 if ((x->EncryptionKey != "") && (!this->ctx_in))
2159 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2160 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2163 Srv->SendOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2164 this->InboundServerName = sname;
2165 this->InboundDescription = description;
2166 // this is good. Send our details: Our server name and description and hopcount of 0,
2167 // along with the sendpass from this block.
2168 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
2169 // move to the next state, we are now waiting for THEM.
2170 this->LinkState = WAIT_AUTH_2;
2174 this->WriteLine("ERROR :Invalid credentials");
2175 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2179 void Split(std::string line, std::deque<std::string> &n)
2182 irc::tokenstream tokens(line);
2184 while ((param = tokens.GetToken()) != "")
2189 bool ProcessLine(std::string line)
2191 std::deque<std::string> params;
2192 irc::string command;
2198 line = line.substr(0, line.find_first_of("\r\n"));
2200 log(DEBUG,"IN: %s", line.c_str());
2202 this->Split(line.c_str(),params);
2204 if ((params[0][0] == ':') && (params.size() > 1))
2206 prefix = params[0].substr(1);
2210 command = params[0].c_str();
2213 if ((!this->ctx_in) && (command == "AES"))
2215 std::string sserv = params[0];
2216 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2218 if ((x->EncryptionKey != "") && (x->Name == sserv))
2220 this->InitAES(x->EncryptionKey,sserv);
2226 else if ((this->ctx_in) && (command == "AES"))
2228 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2231 switch (this->LinkState)
2236 // Waiting for SERVER command from remote server. Server initiating
2237 // the connection sends the first SERVER command, listening server
2238 // replies with theirs if its happy, then if the initiator is happy,
2239 // it starts to send its net sync, which starts the merge, otherwise
2240 // it sends an ERROR.
2241 if (command == "PASS")
2243 /* Silently ignored */
2245 else if (command == "SERVER")
2247 return this->Inbound_Server(params);
2249 else if (command == "ERROR")
2251 return this->Error(params);
2253 else if (command == "USER")
2255 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2258 else if (command == "CAPAB")
2260 return this->Capab(params);
2262 else if ((command == "U") || (command == "S"))
2264 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2269 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2274 // Waiting for start of other side's netmerge to say they liked our
2276 if (command == "SERVER")
2278 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2282 else if ((command == "U") || (command == "S"))
2284 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2287 else if (command == "BURST")
2291 /* If a time stamp is provided, try and check syncronization */
2292 time_t THEM = atoi(params[0].c_str());
2293 long delta = THEM-time(NULL);
2294 if ((delta < -600) || (delta > 600))
2296 WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
2297 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2300 else if ((delta < -60) || (delta > 60))
2302 WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2305 this->LinkState = CONNECTED;
2306 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
2307 TreeRoot->AddChild(Node);
2309 params.push_back(InboundServerName);
2310 params.push_back("*");
2311 params.push_back("1");
2312 params.push_back(":"+InboundDescription);
2313 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2314 this->bursting = true;
2315 this->DoBurst(Node);
2317 else if (command == "ERROR")
2319 return this->Error(params);
2321 else if (command == "CAPAB")
2323 return this->Capab(params);
2328 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2332 if (command == "SERVER")
2334 // another server we connected to, which was in WAIT_AUTH_1 state,
2335 // has just sent us their credentials. If we get this far, theyre
2336 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2337 // if we're happy with this, we should send our netburst which
2338 // kickstarts the merge.
2339 return this->Outbound_Reply_Server(params);
2341 else if (command == "ERROR")
2343 return this->Error(params);
2347 // This is the 'authenticated' state, when all passwords
2348 // have been exchanged and anything past this point is taken
2353 std::string direction = prefix;
2354 userrec* t = Srv->FindNick(prefix);
2357 direction = t->server;
2359 TreeServer* route_back_again = BestRouteTo(direction);
2360 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2362 if (route_back_again)
2363 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2368 * When there is activity on the socket, reset the ping counter so
2369 * that we're not wasting bandwidth pinging an active server.
2371 route_back_again->SetNextPingTime(time(NULL) + 120);
2372 route_back_again->SetPingFlag();
2375 if (command == "SVSMODE")
2377 /* Services expects us to implement
2378 * SVSMODE. In inspircd its the same as
2383 std::string target = "";
2384 /* Yes, know, this is a mess. Its reasonably fast though as we're
2385 * working with std::string here.
2387 if ((command == "NICK") && (params.size() > 1))
2389 return this->IntroduceClient(prefix,params);
2391 else if (command == "FJOIN")
2393 return this->ForceJoin(prefix,params);
2395 else if (command == "SERVER")
2397 return this->RemoteServer(prefix,params);
2399 else if (command == "ERROR")
2401 return this->Error(params);
2403 else if (command == "OPERTYPE")
2405 return this->OperType(prefix,params);
2407 else if (command == "FMODE")
2409 return this->ForceMode(prefix,params);
2411 else if (command == "KILL")
2413 return this->RemoteKill(prefix,params);
2415 else if (command == "FTOPIC")
2417 return this->ForceTopic(prefix,params);
2419 else if (command == "REHASH")
2421 return this->RemoteRehash(prefix,params);
2423 else if (command == "METADATA")
2425 return this->MetaData(prefix,params);
2427 else if (command == "PING")
2430 * We just got a ping from a server that's bursting.
2431 * This can't be right, so set them to not bursting, and
2432 * apply their lines.
2436 this->bursting = false;
2437 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2441 prefix = this->GetName();
2443 return this->LocalPing(prefix,params);
2445 else if (command == "PONG")
2448 * We just got a pong from a server that's bursting.
2449 * This can't be right, so set them to not bursting, and
2450 * apply their lines.
2454 this->bursting = false;
2455 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2459 prefix = this->GetName();
2461 return this->LocalPong(prefix,params);
2463 else if (command == "VERSION")
2465 return this->ServerVersion(prefix,params);
2467 else if (command == "FHOST")
2469 return this->ChangeHost(prefix,params);
2471 else if (command == "FNAME")
2473 return this->ChangeName(prefix,params);
2475 else if (command == "ADDLINE")
2477 return this->AddLine(prefix,params);
2479 else if (command == "SVSNICK")
2483 prefix = this->GetName();
2485 return this->ForceNick(prefix,params);
2487 else if (command == "IDLE")
2489 return this->Whois(prefix,params);
2491 else if (command == "PUSH")
2493 return this->Push(prefix,params);
2495 else if (command == "TIME")
2497 return this->Time(prefix,params);
2499 else if ((command == "KICK") && (IsServer(prefix)))
2501 std::string sourceserv = this->myhost;
2502 if (params.size() == 3)
2504 userrec* user = Srv->FindNick(params[1]);
2505 chanrec* chan = Srv->FindChannel(params[0]);
2508 server_kick_channel(user,chan,(char*)params[2].c_str(),false);
2511 if (this->InboundServerName != "")
2513 sourceserv = this->InboundServerName;
2515 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2517 else if (command == "SVSJOIN")
2521 prefix = this->GetName();
2523 return this->ServiceJoin(prefix,params);
2525 else if (command == "SQUIT")
2527 if (params.size() == 2)
2529 this->Squit(FindServer(params[0]),params[1]);
2533 else if (command == "ENDBURST")
2535 this->bursting = false;
2536 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2537 std::string sourceserv = this->myhost;
2538 if (this->InboundServerName != "")
2540 sourceserv = this->InboundServerName;
2542 WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2547 // not a special inter-server command.
2548 // Emulate the actual user doing the command,
2549 // this saves us having a huge ugly parser.
2550 userrec* who = Srv->FindNick(prefix);
2551 std::string sourceserv = this->myhost;
2552 if (this->InboundServerName != "")
2554 sourceserv = this->InboundServerName;
2558 if ((command == "NICK") && (params.size() > 0))
2560 /* On nick messages, check that the nick doesnt
2561 * already exist here. If it does, kill their copy,
2564 userrec* x = Srv->FindNick(params[0]);
2565 if ((x) && (x != who))
2567 std::deque<std::string> p;
2568 p.push_back(params[0]);
2569 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2570 DoOneToMany(Srv->GetServerName(),"KILL",p);
2572 p.push_back(prefix);
2573 p.push_back("Nickname collision");
2574 DoOneToMany(Srv->GetServerName(),"KILL",p);
2575 Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2576 userrec* y = Srv->FindNick(prefix);
2579 Srv->QuitUser(y,"Nickname collision");
2581 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2585 target = who->server;
2586 const char* strparams[127];
2587 for (unsigned int q = 0; q < params.size(); q++)
2589 strparams[q] = params[q].c_str();
2591 if (!Srv->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2593 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2599 // its not a user. Its either a server, or somethings screwed up.
2600 if (IsServer(prefix))
2602 target = Srv->GetServerName();
2606 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2610 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2619 virtual std::string GetName()
2621 std::string sourceserv = this->myhost;
2622 if (this->InboundServerName != "")
2624 sourceserv = this->InboundServerName;
2629 virtual void OnTimeout()
2631 if (this->LinkState == CONNECTING)
2633 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2637 virtual void OnClose()
2639 // Connection closed.
2640 // If the connection is fully up (state CONNECTED)
2641 // then propogate a netsplit to all peers.
2642 std::string quitserver = this->myhost;
2643 if (this->InboundServerName != "")
2645 quitserver = this->InboundServerName;
2647 TreeServer* s = FindServer(quitserver);
2650 Squit(s,"Remote host closed the connection");
2652 WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2655 virtual int OnIncomingConnection(int newsock, char* ip)
2657 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2658 * or discovering if this port is the server port, we don't allow connections from any
2659 * IPs for which we don't have a link block.
2662 char resolved_host[MAXBUF];
2663 vector<Link>::iterator i;
2664 for (i = LinkBlocks.begin(); i != LinkBlocks.end(); i++)
2666 if (i->IPAddr == ip)
2671 /* XXX: Fixme: blocks for a very short amount of time,
2672 * we should cache these on rehash/startup
2674 if (CleanAndResolve(resolved_host,i->IPAddr.c_str(),true))
2676 if (std::string(resolved_host) == ip)
2685 WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
2689 TreeSocket* s = new TreeSocket(newsock, ip);
2695 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2697 for (unsigned int c = 0; c < list.size(); c++)
2699 if (list[c] == server)
2704 list.push_back(server);
2707 // returns a list of DIRECT servernames for a specific channel
2708 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2710 CUList *ulist = c->GetUsers();
2711 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2713 if (i->second->fd < 0)
2715 TreeServer* best = BestRouteTo(i->second->server);
2717 AddThisServer(best,list);
2723 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
2725 TreeServer* omitroute = BestRouteTo(omit);
2726 if ((command == "NOTICE") || (command == "PRIVMSG"))
2728 if (params.size() >= 2)
2731 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
2733 params[0] = params[0].substr(1, params[0].length()-1);
2735 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
2737 // special routing for private messages/notices
2738 userrec* d = Srv->FindNick(params[0]);
2741 std::deque<std::string> par;
2742 par.push_back(params[0]);
2743 par.push_back(":"+params[1]);
2744 DoOneToOne(prefix,command.c_str(),par,d->server);
2748 else if (*(params[0].c_str()) == '$')
2750 std::deque<std::string> par;
2751 par.push_back(params[0]);
2752 par.push_back(":"+params[1]);
2753 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
2758 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
2759 chanrec* c = Srv->FindChannel(params[0]);
2762 std::deque<TreeServer*> list;
2763 GetListOfServersForChannel(c,list);
2764 log(DEBUG,"Got a list of %d servers",list.size());
2765 unsigned int lsize = list.size();
2766 for (unsigned int i = 0; i < lsize; i++)
2768 TreeSocket* Sock = list[i]->GetSocket();
2769 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
2771 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
2772 Sock->WriteLine(data);
2780 unsigned int items = TreeRoot->ChildCount();
2781 for (unsigned int x = 0; x < items; x++)
2783 TreeServer* Route = TreeRoot->GetChild(x);
2784 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2786 TreeSocket* Sock = Route->GetSocket();
2787 Sock->WriteLine(data);
2793 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
2795 TreeServer* omitroute = BestRouteTo(omit);
2796 std::string FullLine = ":" + prefix + " " + command;
2797 unsigned int words = params.size();
2798 for (unsigned int x = 0; x < words; x++)
2800 FullLine = FullLine + " " + params[x];
2802 unsigned int items = TreeRoot->ChildCount();
2803 for (unsigned int x = 0; x < items; x++)
2805 TreeServer* Route = TreeRoot->GetChild(x);
2806 // Send the line IF:
2807 // The route has a socket (its a direct connection)
2808 // The route isnt the one to be omitted
2809 // The route isnt the path to the one to be omitted
2810 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2812 TreeSocket* Sock = Route->GetSocket();
2813 Sock->WriteLine(FullLine);
2819 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
2821 std::string FullLine = ":" + prefix + " " + command;
2822 unsigned int words = params.size();
2823 for (unsigned int x = 0; x < words; x++)
2825 FullLine = FullLine + " " + params[x];
2827 unsigned int items = TreeRoot->ChildCount();
2828 for (unsigned int x = 0; x < items; x++)
2830 TreeServer* Route = TreeRoot->GetChild(x);
2831 if (Route->GetSocket())
2833 TreeSocket* Sock = Route->GetSocket();
2834 Sock->WriteLine(FullLine);
2840 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
2842 TreeServer* Route = BestRouteTo(target);
2845 std::string FullLine = ":" + prefix + " " + command;
2846 unsigned int words = params.size();
2847 for (unsigned int x = 0; x < words; x++)
2849 FullLine = FullLine + " " + params[x];
2851 if (Route->GetSocket())
2853 TreeSocket* Sock = Route->GetSocket();
2854 Sock->WriteLine(FullLine);
2864 std::vector<TreeSocket*> Bindings;
2866 void ReadConfiguration(bool rebind)
2868 Conf = new ConfigReader;
2871 for (int j =0; j < Conf->Enumerate("bind"); j++)
2873 std::string Type = Conf->ReadValue("bind","type",j);
2874 std::string IP = Conf->ReadValue("bind","address",j);
2875 long Port = Conf->ReadInteger("bind","port",j,true);
2876 if (Type == "servers")
2882 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
2883 if (listener->GetState() == I_LISTENING)
2885 Srv->AddSocket(listener);
2886 Bindings.push_back(listener);
2890 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
2897 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
2898 HideULines = Conf->ReadFlag("options","hideulines",0);
2900 for (int j =0; j < Conf->Enumerate("link"); j++)
2903 L.Name = (Conf->ReadValue("link","name",j)).c_str();
2904 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
2905 L.Port = Conf->ReadInteger("link","port",j,true);
2906 L.SendPass = Conf->ReadValue("link","sendpass",j);
2907 L.RecvPass = Conf->ReadValue("link","recvpass",j);
2908 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
2909 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
2910 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
2911 L.NextConnectTime = time(NULL) + L.AutoConnect;
2912 /* Bugfix by brain, do not allow people to enter bad configurations */
2913 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
2915 LinkBlocks.push_back(L);
2916 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
2922 log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
2924 else if (L.RecvPass == "")
2926 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
2928 else if (L.SendPass == "")
2930 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
2932 else if (L.Name == "")
2934 log(DEFAULT,"Invalid configuration, link tag without a name!");
2938 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
2946 class ModuleSpanningTree : public Module
2948 std::vector<TreeSocket*> Bindings;
2951 unsigned int max_local;
2952 unsigned int max_global;
2953 cmd_rconnect* command_rconnect;
2957 ModuleSpanningTree(Server* Me)
2958 : Module::Module(Me), max_local(0), max_global(0)
2963 // Create the root of the tree
2964 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
2966 ReadConfiguration(true);
2968 command_rconnect = new cmd_rconnect(this);
2969 Srv->AddCommand(command_rconnect);
2972 void ShowLinks(TreeServer* Current, userrec* user, int hops)
2974 std::string Parent = TreeRoot->GetName();
2975 if (Current->GetParent())
2977 Parent = Current->GetParent()->GetName();
2979 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2981 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
2985 ShowLinks(Current->GetChild(q),user,hops+1);
2990 ShowLinks(Current->GetChild(q),user,hops+1);
2993 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
2994 if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
2996 WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? Srv->GetServerName().c_str() : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
2999 int CountLocalServs()
3001 return TreeRoot->ChildCount();
3006 return serverlist.size();
3009 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3011 ShowLinks(TreeRoot,user,0);
3012 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
3016 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3018 unsigned int n_users = usercnt();
3020 /* Only update these when someone wants to see them, more efficient */
3021 if ((unsigned int)local_count() > max_local)
3022 max_local = local_count();
3023 if (n_users > max_global)
3024 max_global = n_users;
3026 WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-usercount_invisible(),usercount_invisible(),this->CountServs());
3027 if (usercount_opers())
3028 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
3029 if (usercount_unknown())
3030 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
3032 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
3033 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
3034 WriteServ(user->fd,"265 %s :Current Local Users: %d Max: %d",user->nick,local_count(),max_local);
3035 WriteServ(user->fd,"266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3039 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3041 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3045 for (int t = 0; t < depth; t++)
3047 matrix[line][t] = ' ';
3050 // For Aligning, we need to work out exactly how deep this thing is, and produce
3051 // a 'Spacer' String to compensate.
3054 memset(spacer,' ',40);
3055 if ((40 - Current->GetName().length() - depth) > 1) {
3056 spacer[40 - Current->GetName().length() - depth] = '\0';
3065 if (clientlist.size() == 0) {
3066 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3071 percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
3073 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3074 totusers += Current->GetUserCount();
3076 strlcpy(&matrix[line][depth],text,80);
3078 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3080 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3084 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3089 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3095 // Ok, prepare to be confused.
3096 // After much mulling over how to approach this, it struck me that
3097 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3098 // keeping track of a ton of ascii characters, and line by line
3099 // under recursion working out where to place them using multiplications
3100 // and divisons, we instead render the map onto a backplane of characters
3101 // (a character matrix), then draw the branches as a series of "L" shapes
3102 // from the nodes. This is not only friendlier on CPU it uses less stack.
3104 void HandleMap(const char** parameters, int pcnt, userrec* user)
3106 // This array represents a virtual screen which we will
3107 // "scratch" draw to, as the console device of an irc
3108 // client does not provide for a proper terminal.
3110 float totservers = 0;
3111 char matrix[128][80];
3112 for (unsigned int t = 0; t < 128; t++)
3114 matrix[t][0] = '\0';
3117 // The only recursive bit is called here.
3118 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3119 // Process each line one by one. The algorithm has a limit of
3120 // 128 servers (which is far more than a spanning tree should have
3121 // anyway, so we're ok). This limit can be raised simply by making
3122 // the character matrix deeper, 128 rows taking 10k of memory.
3123 for (int l = 1; l < line; l++)
3125 // scan across the line looking for the start of the
3126 // servername (the recursive part of the algorithm has placed
3127 // the servers at indented positions depending on what they
3129 int first_nonspace = 0;
3130 while (matrix[l][first_nonspace] == ' ')
3135 // Draw the `- (corner) section: this may be overwritten by
3136 // another L shape passing along the same vertical pane, becoming
3137 // a |- (branch) section instead.
3138 matrix[l][first_nonspace] = '-';
3139 matrix[l][first_nonspace-1] = '`';
3141 // Draw upwards until we hit the parent server, causing possibly
3142 // other corners (`-) to become branches (|-)
3143 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3145 matrix[l2][first_nonspace-1] = '|';
3149 // dump the whole lot to the user. This is the easy bit, honest.
3150 for (int t = 0; t < line; t++)
3152 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
3154 float avg_users = totusers / totservers;
3155 WriteServ(user->fd,"270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
3156 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
3160 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3162 TreeServer* s = FindServerMask(parameters[0]);
3167 WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3170 TreeSocket* sock = s->GetSocket();
3173 log(DEBUG,"Splitting server %s",s->GetName().c_str());
3174 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3175 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3176 Srv->RemoveSocket(sock);
3180 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3185 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3190 int HandleTime(const char** parameters, int pcnt, userrec* user)
3192 if ((user->fd > -1) && (pcnt))
3194 TreeServer* found = FindServerMask(parameters[0]);
3197 // we dont' override for local server
3198 if (found == TreeRoot)
3201 std::deque<std::string> params;
3202 params.push_back(found->GetName());
3203 params.push_back(user->nick);
3204 DoOneToOne(Srv->GetServerName(),"TIME",params,found->GetName());
3208 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3214 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3216 if ((user->fd > -1) && (pcnt > 1))
3218 userrec* remote = Srv->FindNick(parameters[1]);
3219 if ((remote) && (remote->fd < 0))
3221 std::deque<std::string> params;
3222 params.push_back(parameters[1]);
3223 DoOneToOne(user->nick,"IDLE",params,remote->server);
3228 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3229 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3236 void DoPingChecks(time_t curtime)
3238 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3240 TreeServer* serv = TreeRoot->GetChild(j);
3241 TreeSocket* sock = serv->GetSocket();
3244 if (curtime >= serv->NextPingTime())
3246 if (serv->AnsweredLastPing())
3248 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
3249 serv->SetNextPingTime(curtime + 120);
3253 // they didnt answer, boot them
3254 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3255 sock->Squit(serv,"Ping timeout");
3256 Srv->RemoveSocket(sock);
3264 void AutoConnectServers(time_t curtime)
3266 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3268 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3270 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3271 x->NextConnectTime = curtime + x->AutoConnect;
3272 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3275 // an autoconnected server is not connected. Check if its time to connect it
3276 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3277 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3278 if (newsocket->GetFd() > -1)
3280 Srv->AddSocket(newsocket);
3284 WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3292 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3294 // we've already checked if pcnt > 0, so this is safe
3295 TreeServer* found = FindServerMask(parameters[0]);
3298 std::string Version = found->GetVersion();
3299 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
3300 if (found == TreeRoot)
3302 std::stringstream out(Config->data005);
3303 std::string token = "";
3304 std::string line5 = "";
3305 int token_counter = 0;
3310 line5 = line5 + token + " ";
3313 if ((token_counter >= 13) || (out.eof() == true))
3315 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
3324 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3329 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3331 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3333 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
3335 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3338 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
3339 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3340 if (newsocket->GetFd() > -1)
3342 Srv->AddSocket(newsocket);
3346 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Error connecting \002%s\002: %s.",user->nick,x->Name.c_str(),strerror(errno));
3353 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());
3358 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3362 virtual int OnStats(char statschar, userrec* user)
3364 if (statschar == 'c')
3366 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3368 WriteServ(user->fd,"213 %s C *@%s * %s %d 0 %c%c%c",user->nick,(LinkBlocks[i].HiddenFromStats ? "<hidden>" : LinkBlocks[i].IPAddr).c_str(),LinkBlocks[i].Name.c_str(),LinkBlocks[i].Port,(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-'),(LinkBlocks[i].AutoConnect ? 'a' : '-'),'s');
3369 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
3371 WriteServ(user->fd,"219 %s %c :End of /STATS report",user->nick,statschar);
3372 WriteOpers("*** Notice: Stats '%c' requested by %s (%s@%s)",statschar,user->nick,user->ident,user->host);
3378 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3380 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3384 if (command == "CONNECT")
3386 return this->HandleConnect(parameters,pcnt,user);
3388 else if (command == "SQUIT")
3390 return this->HandleSquit(parameters,pcnt,user);
3392 else if (command == "MAP")
3394 this->HandleMap(parameters,pcnt,user);
3397 else if ((command == "TIME") && (pcnt > 0))
3399 return this->HandleTime(parameters,pcnt,user);
3401 else if (command == "LUSERS")
3403 this->HandleLusers(parameters,pcnt,user);
3406 else if (command == "LINKS")
3408 this->HandleLinks(parameters,pcnt,user);
3411 else if (command == "WHOIS")
3416 return this->HandleRemoteWhois(parameters,pcnt,user);
3419 else if ((command == "VERSION") && (pcnt > 0))
3421 this->HandleVersion(parameters,pcnt,user);
3424 else if (Srv->IsValidModuleCommand(command, pcnt, user))
3426 // this bit of code cleverly routes all module commands
3427 // to all remote severs *automatically* so that modules
3428 // can just handle commands locally, without having
3429 // to have any special provision in place for remote
3430 // commands and linking protocols.
3431 std::deque<std::string> params;
3433 for (int j = 0; j < pcnt; j++)
3435 if (strchr(parameters[j],' '))
3437 params.push_back(":" + std::string(parameters[j]));
3441 params.push_back(std::string(parameters[j]));
3444 log(DEBUG,"Globally route '%s'",command.c_str());
3445 DoOneToMany(user->nick,command,params);
3450 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3452 TreeServer* s = FindServer(servername);
3455 description = s->GetDesc();
3459 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3461 if (source->fd > -1)
3463 std::deque<std::string> params;
3464 params.push_back(dest->nick);
3465 params.push_back(channel->name);
3466 DoOneToMany(source->nick,"INVITE",params);
3470 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3472 std::deque<std::string> params;
3473 params.push_back(chan->name);
3474 params.push_back(":"+topic);
3475 DoOneToMany(user->nick,"TOPIC",params);
3478 virtual void OnWallops(userrec* user, const std::string &text)
3482 std::deque<std::string> params;
3483 params.push_back(":"+text);
3484 DoOneToMany(user->nick,"WALLOPS",params);
3488 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3490 if (target_type == TYPE_USER)
3492 userrec* d = (userrec*)dest;
3493 if ((d->fd < 0) && (user->fd > -1))
3495 std::deque<std::string> params;
3497 params.push_back(d->nick);
3498 params.push_back(":"+text);
3499 DoOneToOne(user->nick,"NOTICE",params,d->server);
3502 else if (target_type == TYPE_CHANNEL)
3506 chanrec *c = (chanrec*)dest;
3507 std::string cname = c->name;
3509 cname = status + cname;
3510 std::deque<TreeServer*> list;
3511 GetListOfServersForChannel(c,list);
3512 unsigned int ucount = list.size();
3513 for (unsigned int i = 0; i < ucount; i++)
3515 TreeSocket* Sock = list[i]->GetSocket();
3517 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
3521 else if (target_type == TYPE_SERVER)
3525 char* target = (char*)dest;
3526 std::deque<std::string> par;
3527 par.push_back(target);
3528 par.push_back(":"+text);
3529 DoOneToMany(user->nick,"NOTICE",par);
3534 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
3536 if (target_type == TYPE_USER)
3538 // route private messages which are targetted at clients only to the server
3539 // which needs to receive them
3540 userrec* d = (userrec*)dest;
3541 if ((d->fd < 0) && (user->fd > -1))
3543 std::deque<std::string> params;
3545 params.push_back(d->nick);
3546 params.push_back(":"+text);
3547 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
3550 else if (target_type == TYPE_CHANNEL)
3554 chanrec *c = (chanrec*)dest;
3555 std::string cname = c->name;
3557 cname = status + cname;
3558 std::deque<TreeServer*> list;
3559 GetListOfServersForChannel(c,list);
3560 unsigned int ucount = list.size();
3561 for (unsigned int i = 0; i < ucount; i++)
3563 TreeSocket* Sock = list[i]->GetSocket();
3565 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
3569 else if (target_type == TYPE_SERVER)
3573 char* target = (char*)dest;
3574 std::deque<std::string> par;
3575 par.push_back(target);
3576 par.push_back(":"+text);
3577 DoOneToMany(user->nick,"PRIVMSG",par);
3582 virtual void OnBackgroundTimer(time_t curtime)
3584 AutoConnectServers(curtime);
3585 DoPingChecks(curtime);
3588 virtual void OnUserJoin(userrec* user, chanrec* channel)
3590 // Only do this for local users
3593 std::deque<std::string> params;
3595 params.push_back(channel->name);
3597 if (channel->GetUserCounter() > 1)
3599 // not the first in the channel
3600 DoOneToMany(user->nick,"JOIN",params);
3604 // first in the channel, set up their permissions
3605 // and the channel TS with FJOIN.
3607 snprintf(ts,24,"%lu",(unsigned long)channel->age);
3609 params.push_back(channel->name);
3610 params.push_back(ts);
3611 params.push_back("@"+std::string(user->nick));
3612 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
3617 virtual void OnChangeHost(userrec* user, const std::string &newhost)
3619 // only occurs for local clients
3620 if (user->registered != 7)
3622 std::deque<std::string> params;
3623 params.push_back(newhost);
3624 DoOneToMany(user->nick,"FHOST",params);
3627 virtual void OnChangeName(userrec* user, const std::string &gecos)
3629 // only occurs for local clients
3630 if (user->registered != 7)
3632 std::deque<std::string> params;
3633 params.push_back(gecos);
3634 DoOneToMany(user->nick,"FNAME",params);
3637 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
3641 std::deque<std::string> params;
3642 params.push_back(channel->name);
3643 if (partmessage != "")
3644 params.push_back(":"+partmessage);
3645 DoOneToMany(user->nick,"PART",params);
3649 virtual void OnUserConnect(userrec* user)
3651 char agestr[MAXBUF];
3654 std::deque<std::string> params;
3655 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
3656 params.push_back(agestr);
3657 params.push_back(user->nick);
3658 params.push_back(user->host);
3659 params.push_back(user->dhost);
3660 params.push_back(user->ident);
3661 params.push_back("+"+std::string(user->FormatModes()));
3662 params.push_back((char*)inet_ntoa(user->ip4));
3663 params.push_back(":"+std::string(user->fullname));
3664 DoOneToMany(Srv->GetServerName(),"NICK",params);
3666 // User is Local, change needs to be reflected!
3667 TreeServer* SourceServer = FindServer(user->server);
3670 SourceServer->AddUserCount();
3676 virtual void OnUserQuit(userrec* user, const std::string &reason)
3678 if ((user->fd > -1) && (user->registered == 7))
3680 std::deque<std::string> params;
3681 params.push_back(":"+reason);
3682 DoOneToMany(user->nick,"QUIT",params);
3684 // Regardless, We need to modify the user Counts..
3685 TreeServer* SourceServer = FindServer(user->server);
3688 SourceServer->DelUserCount();
3693 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
3697 std::deque<std::string> params;
3698 params.push_back(user->nick);
3699 DoOneToMany(oldnick,"NICK",params);
3703 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
3705 if ((source) && (source->fd > -1))
3707 std::deque<std::string> params;
3708 params.push_back(chan->name);
3709 params.push_back(user->nick);
3710 params.push_back(":"+reason);
3711 DoOneToMany(source->nick,"KICK",params);
3715 std::deque<std::string> params;
3716 params.push_back(chan->name);
3717 params.push_back(user->nick);
3718 params.push_back(":"+reason);
3719 DoOneToMany(Srv->GetServerName(),"KICK",params);
3723 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
3725 std::deque<std::string> params;
3726 params.push_back(dest->nick);
3727 params.push_back(":"+reason);
3728 DoOneToMany(source->nick,"KILL",params);
3731 virtual void OnRehash(const std::string ¶meter)
3733 if (parameter != "")
3735 std::deque<std::string> params;
3736 params.push_back(parameter);
3737 DoOneToMany(Srv->GetServerName(),"REHASH",params);
3739 if (Srv->MatchText(Srv->GetServerName(),parameter))
3741 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
3742 Srv->RehashServer();
3745 ReadConfiguration(false);
3748 // note: the protocol does not allow direct umode +o except
3749 // via NICK with 8 params. sending OPERTYPE infers +o modechange
3751 virtual void OnOper(userrec* user, const std::string &opertype)
3755 std::deque<std::string> params;
3756 params.push_back(opertype);
3757 DoOneToMany(user->nick,"OPERTYPE",params);
3761 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
3763 if (source->fd > -1)
3766 snprintf(type,8,"%cLINE",linetype);
3767 std::string stype = type;
3770 char sduration[MAXBUF];
3771 snprintf(sduration,MAXBUF,"%ld",duration);
3772 std::deque<std::string> params;
3773 params.push_back(host);
3774 params.push_back(sduration);
3775 params.push_back(":"+reason);
3776 DoOneToMany(source->nick,stype,params);
3780 std::deque<std::string> params;
3781 params.push_back(host);
3782 DoOneToMany(source->nick,stype,params);
3787 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3789 OnLine(source,hostmask,true,'G',duration,reason);
3792 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
3794 OnLine(source,ipmask,true,'Z',duration,reason);
3797 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
3799 OnLine(source,nickmask,true,'Q',duration,reason);
3802 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3804 OnLine(source,hostmask,true,'E',duration,reason);
3807 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
3809 OnLine(source,hostmask,false,'G',0,"");
3812 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
3814 OnLine(source,ipmask,false,'Z',0,"");
3817 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
3819 OnLine(source,nickmask,false,'Q',0,"");
3822 virtual void OnDelELine(userrec* source, const std::string &hostmask)
3824 OnLine(source,hostmask,false,'E',0,"");
3827 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
3829 if ((user->fd > -1) && (user->registered == 7))
3831 if (target_type == TYPE_USER)
3833 userrec* u = (userrec*)dest;
3834 std::deque<std::string> params;
3835 params.push_back(u->nick);
3836 params.push_back(text);
3837 DoOneToMany(user->nick,"MODE",params);
3841 chanrec* c = (chanrec*)dest;
3842 std::deque<std::string> params;
3843 params.push_back(c->name);
3844 params.push_back(text);
3845 DoOneToMany(user->nick,"MODE",params);
3850 virtual void OnSetAway(userrec* user)
3854 std::deque<std::string> params;
3855 params.push_back(":"+std::string(user->awaymsg));
3856 DoOneToMany(user->nick,"AWAY",params);
3860 virtual void OnCancelAway(userrec* user)
3864 std::deque<std::string> params;
3866 DoOneToMany(user->nick,"AWAY",params);
3870 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
3872 TreeSocket* s = (TreeSocket*)opaque;
3875 if (target_type == TYPE_USER)
3877 userrec* u = (userrec*)target;
3878 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
3882 chanrec* c = (chanrec*)target;
3883 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
3888 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
3890 TreeSocket* s = (TreeSocket*)opaque;
3893 if (target_type == TYPE_USER)
3895 userrec* u = (userrec*)target;
3896 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
3898 else if (target_type == TYPE_OTHER)
3900 s->WriteLine(":"+Srv->GetServerName()+" METADATA * "+extname+" :"+extdata);
3902 else if (target_type == TYPE_CHANNEL)
3904 chanrec* c = (chanrec*)target;
3905 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
3910 virtual void OnEvent(Event* event)
3912 if (event->GetEventID() == "send_metadata")
3914 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
3915 if (params->size() < 3)
3917 (*params)[2] = ":" + (*params)[2];
3918 DoOneToMany(Srv->GetServerName(),"METADATA",*params);
3920 else if (event->GetEventID() == "send_mode")
3922 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
3923 if (params->size() < 2)
3925 // Insert the TS value of the object, either userrec or chanrec
3927 userrec* a = Srv->FindNick((*params)[0]);
3934 chanrec* a = Srv->FindChannel((*params)[0]);
3940 params->insert(params->begin() + 1,ConvToStr(ourTS));
3941 DoOneToMany(Srv->GetServerName(),"FMODE",*params);
3945 virtual ~ModuleSpanningTree()
3949 virtual Version GetVersion()
3951 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
3954 void Implements(char* List)
3956 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
3957 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
3958 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
3959 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
3960 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
3961 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
3962 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
3965 /* It is IMPORTANT that m_spanningtree is the last module in the chain
3966 * so that any activity it sees is FINAL, e.g. we arent going to send out
3967 * a NICK message before m_cloaking has finished putting the +x on the user,
3969 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
3970 * the module call queue.
3972 Priority Prioritize()
3974 return PRIORITY_LAST;
3979 class ModuleSpanningTreeFactory : public ModuleFactory
3982 ModuleSpanningTreeFactory()
3986 ~ModuleSpanningTreeFactory()
3990 virtual Module * CreateModule(Server* Me)
3992 TreeProtocolModule = new ModuleSpanningTree(Me);
3993 return TreeProtocolModule;
3999 extern "C" void * init_module( void )
4001 return new ModuleSpanningTreeFactory;