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 /* XXX: We should check that we arent bouncing anything thats already set at this end.
949 * If we are, bounce +ourmode.
951 * E.G. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
953 log(DEBUG,"Mode bounced, our TS less than theirs");
957 if ((Srv->IsUlined(source)) && (TS > ourTS))
959 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());
962 Srv->SendMode(modelist,params.size(),who);
963 DoOneToAllButSender(source,"FMODE",params,source);
970 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
972 if (params.size() != 4)
974 time_t ts = atoi(params[1].c_str());
975 std::string nsource = source;
977 chanrec* c = Srv->FindChannel(params[0]);
980 if ((ts >= c->topicset) || (!*c->topic))
982 std::string oldtopic = c->topic;
983 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
984 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
986 /* if the topic text is the same as the current topic,
987 * dont bother to send the TOPIC command out, just silently
988 * update the set time and set nick.
990 if (oldtopic != params[3])
992 userrec* user = Srv->FindNick(source);
995 WriteChannelWithServ(source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
999 WriteChannel(c, user, "TOPIC %s :%s", c->name, c->topic);
1000 nsource = user->server;
1002 /* all done, send it on its way */
1003 params[3] = ":" + params[3];
1004 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1013 /* FJOIN, similar to unreal SJOIN */
1014 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1016 if (params.size() < 3)
1020 char modestring[MAXBUF];
1021 char* mode_users[127];
1022 memset(&mode_users,0,sizeof(mode_users));
1023 mode_users[0] = first;
1024 mode_users[1] = modestring;
1026 unsigned int modectr = 2;
1028 userrec* who = NULL;
1029 std::string channel = params[0];
1030 time_t TS = atoi(params[1].c_str());
1033 chanrec* chan = Srv->FindChannel(channel);
1038 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1040 /* default is a high value, which if we dont have this
1041 * channel will let the other side apply their modes.
1043 time_t ourTS = time(NULL)+600;
1044 chanrec* us = Srv->FindChannel(channel);
1050 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1052 /* do this first, so our mode reversals are correctly received by other servers
1053 * if there is a TS collision.
1055 DoOneToAllButSender(source,"FJOIN",params,source);
1057 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
1059 /* process one channel at a time, applying modes. */
1060 char* usr = (char*)params[usernum].c_str();
1061 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1062 * (is this even possible?) */
1065 char permissions = *usr;
1066 switch (permissions)
1070 mode_users[modectr++] = usr;
1071 strlcat(modestring,"o",MAXBUF);
1075 mode_users[modectr++] = usr;
1076 strlcat(modestring,"h",MAXBUF);
1080 mode_users[modectr++] = usr;
1081 strlcat(modestring,"v",MAXBUF);
1084 who = Srv->FindNick(usr);
1087 Srv->JoinUserToChannel(who,channel,key);
1088 if (modectr >= (MAXMODES-1))
1090 /* theres a mode for this user. push them onto the mode queue, and flush it
1091 * if there are more than MAXMODES to go.
1093 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
1095 /* We also always let u-lined clients win, no matter what the TS value */
1096 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1097 Srv->SendMode((const char**)mode_users,modectr,who);
1100 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1106 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1107 /* bouncy bouncy! */
1108 std::deque<std::string> params;
1109 /* modes are now being UNSET... */
1110 *mode_users[1] = '-';
1111 for (unsigned int x = 0; x < modectr; x++)
1115 params.push_back(ConvToStr(us->age));
1117 params.push_back(mode_users[x]);
1119 // tell everyone to bounce the modes. bad modes, bad!
1120 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1122 strcpy(mode_users[1],"+");
1128 /* there werent enough modes built up to flush it during FJOIN,
1129 * or, there are a number left over. flush them out.
1131 if ((modectr > 2) && (who))
1135 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1136 Srv->SendMode((const char**)mode_users,modectr,who);
1139 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us,ourTS,TS);
1145 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1146 std::deque<std::string> params;
1147 *mode_users[1] = '-';
1148 for (unsigned int x = 0; x < modectr; x++)
1152 params.push_back(ConvToStr(us->age));
1154 params.push_back(mode_users[x]);
1156 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1162 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1164 if (params.size() >= 2)
1166 chanrec* c = Srv->FindChannel(params[0]);
1169 time_t theirTS = atoi(params[1].c_str());
1170 time_t ourTS = c->age;
1171 if (ourTS >= theirTS)
1173 log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1178 DoOneToAllButSender(Srv->GetServerName(),"SYNCTS",params,source);
1183 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1185 if (params.size() < 8)
1187 if (params.size() > 8)
1189 this->WriteLine(":"+Srv->GetServerName()+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1192 // NICK age nick host dhost ident +modes ip :gecos
1194 time_t age = atoi(params[0].c_str());
1196 /* This used to have a pretty craq'y loop doing the same thing,
1197 * now we just let the STL do the hard work (more efficiently)
1199 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1201 const char* tempnick = params[1].c_str();
1202 log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1204 user_hash::iterator iter = clientlist.find(tempnick);
1206 if (iter != clientlist.end())
1209 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);
1210 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
1214 clientlist[tempnick] = new userrec();
1215 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
1216 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX-1);
1217 strlcpy(clientlist[tempnick]->host, params[2].c_str(),63);
1218 strlcpy(clientlist[tempnick]->dhost, params[3].c_str(),63);
1219 clientlist[tempnick]->server = FindServerNamePtr(source.c_str());
1220 strlcpy(clientlist[tempnick]->ident, params[4].c_str(),IDENTMAX);
1221 strlcpy(clientlist[tempnick]->fullname, params[7].c_str(),MAXGECOS);
1222 clientlist[tempnick]->registered = 7;
1223 clientlist[tempnick]->signon = age;
1225 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1227 clientlist[tempnick]->modes[(*v)-65] = 1;
1229 inet_aton(params[6].c_str(),&clientlist[tempnick]->ip4);
1231 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));
1233 params[7] = ":" + params[7];
1234 DoOneToAllButSender(source,"NICK",params,source);
1236 // Increment the Source Servers User Count..
1237 TreeServer* SourceServer = FindServer(source);
1240 log(DEBUG,"Found source server of %s",clientlist[tempnick]->nick);
1241 SourceServer->AddUserCount();
1247 /* Send one or more FJOINs for a channel of users.
1248 * If the length of a single line is more than 480-NICKMAX
1249 * in length, it is split over multiple lines.
1251 void SendFJoins(TreeServer* Current, chanrec* c)
1253 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1255 std::string individual_halfops = ":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age);
1257 size_t dlen, curlen;
1258 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1260 char* ptr = list + dlen;
1262 CUList *ulist = c->GetUsers();
1263 std::vector<userrec*> specific_halfop;
1264 std::vector<userrec*> specific_voice;
1265 std::string modes = "";
1266 std::string params = "";
1268 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1270 int x = cflags(i->second,c);
1271 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1273 specific_halfop.push_back(i->second);
1275 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1277 specific_voice.push_back(i->second);
1285 else if (x & UCMODE_HOP)
1289 else if (x & UCMODE_VOICE)
1294 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s", n, i->second->nick);
1301 if (curlen > (480-NICKMAX))
1303 this->WriteLine(list);
1304 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1308 for (unsigned int y = 0; y < specific_voice.size(); y++)
1311 params.append(specific_voice[y]->nick).append(" ");
1312 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1314 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1317 params.append(specific_halfop[y]->nick).append(" ");
1318 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1324 this->WriteLine(list);
1325 for (unsigned int y = 0; y < specific_voice.size(); y++)
1328 params.append(specific_voice[y]->nick).append(" ");
1329 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1331 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1334 params.append(specific_halfop[y]->nick).append(" ");
1335 //this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1338 //std::string modes = "";
1339 //std::string params = "";
1340 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1343 params.append(b->data).append(" ");
1345 /* XXX: Send each channel mode and its params -- we'll need a method for this in ModeHandler? */
1346 //FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1347 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+chanmodes(c,true)+modes+" "+params);
1350 /* Send G, Q, Z and E lines */
1351 void SendXLines(TreeServer* Current)
1354 std::string n = Srv->GetServerName();
1355 const char* sn = n.c_str();
1357 /* Yes, these arent too nice looking, but they get the job done */
1358 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++, iterations++)
1360 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);
1361 this->WriteLine(data);
1363 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++, iterations++)
1365 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);
1366 this->WriteLine(data);
1368 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++, iterations++)
1370 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);
1371 this->WriteLine(data);
1373 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++, iterations++)
1375 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);
1376 this->WriteLine(data);
1378 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++, iterations++)
1380 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);
1381 this->WriteLine(data);
1383 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++, iterations++)
1385 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);
1386 this->WriteLine(data);
1388 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++, iterations++)
1390 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);
1391 this->WriteLine(data);
1393 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++, iterations++)
1395 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);
1396 this->WriteLine(data);
1400 /* Send channel modes and topics */
1401 void SendChannelModes(TreeServer* Current)
1404 std::deque<std::string> list;
1406 std::string n = Srv->GetServerName();
1407 const char* sn = n.c_str();
1408 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++, iterations++)
1410 SendFJoins(Current, c->second);
1411 if (*c->second->topic)
1413 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1414 this->WriteLine(data);
1416 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1418 c->second->GetExtList(list);
1419 for (unsigned int j = 0; j < list.size(); j++)
1421 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1426 /* send all users and their oper state/modes */
1427 void SendUsers(TreeServer* Current)
1430 std::deque<std::string> list;
1432 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++, iterations++)
1434 if (u->second->registered == 7)
1436 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);
1437 this->WriteLine(data);
1438 if (*u->second->oper)
1440 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1442 if (*u->second->awaymsg)
1444 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1446 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1448 u->second->GetExtList(list);
1449 for (unsigned int j = 0; j < list.size(); j++)
1451 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1457 /* This function is called when we want to send a netburst to a local
1458 * server. There is a set order we must do this, because for example
1459 * users require their servers to exist, and channels require their
1460 * users to exist. You get the idea.
1462 void DoBurst(TreeServer* s)
1464 /* The calls here to ServerInstance-> yield the processing
1465 * back to the core so that a large burst is split into at least 6 sections
1468 std::string burst = "BURST "+ConvToStr(time(NULL));
1469 std::string endburst = "ENDBURST";
1470 // Because by the end of the netburst, it could be gone!
1471 std::string name = s->GetName();
1472 Srv->SendOpers("*** Bursting to \2"+name+"\2.");
1473 this->WriteLine(burst);
1474 /* send our version string */
1475 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1476 /* Send server tree */
1477 this->SendServers(TreeRoot,s,1);
1478 /* Send users and their oper status */
1480 /* Send everything else (channel modes, xlines etc) */
1481 this->SendChannelModes(s);
1482 this->SendXLines(s);
1483 FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1484 this->WriteLine(endburst);
1485 Srv->SendOpers("*** Finished bursting to \2"+name+"\2.");
1488 /* This function is called when we receive data from a remote
1489 * server. We buffer the data in a std::string (it doesnt stay
1490 * there for long), reading using InspSocket::Read() which can
1491 * read up to 16 kilobytes in one operation.
1493 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1494 * THE SOCKET OBJECT FOR US.
1496 virtual bool OnDataReady()
1498 char* data = this->Read();
1499 /* Check that the data read is a valid pointer and it has some content */
1502 this->in_buffer.append(data);
1503 /* While there is at least one new line in the buffer,
1504 * do something useful (we hope!) with it.
1506 while (in_buffer.find("\n") != std::string::npos)
1508 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1509 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1510 if (ret.find("\r") != std::string::npos)
1511 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1512 /* Process this one, abort if it
1513 * didnt return true.
1519 memset(result,0,1024);
1521 log(DEBUG,"Original string '%s'",ret.c_str());
1522 /* ERROR + CAPAB is still allowed unencryped */
1523 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1525 int nbytes = from64tobits(out, ret.c_str(), 1024);
1526 if ((nbytes > 0) && (nbytes < 1024))
1528 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1529 ctx_in->Decrypt(out, result, nbytes, 0);
1530 for (int t = 0; t < nbytes; t++)
1531 if (result[t] == '\7') result[t] = 0;
1536 if (!this->ProcessLine(ret))
1538 log(DEBUG,"ProcessLine says no!");
1544 /* EAGAIN returns an empty but non-NULL string, so this
1545 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1547 return (data && !*data);
1550 int WriteLine(std::string line)
1552 log(DEBUG,"OUT: %s",line.c_str());
1556 char result64[10240];
1557 if (this->keylength)
1559 // pad it to the key length
1560 int n = this->keylength - (line.length() % this->keylength);
1563 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);
1564 line.append(n,'\7');
1567 unsigned int ll = line.length();
1568 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1569 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1571 //int from64tobits(char *out, const char *in, int maxlen);
1573 return this->Write(line + "\r\n");
1576 /* Handle ERROR command */
1577 bool Error(std::deque<std::string> ¶ms)
1579 if (params.size() < 1)
1581 WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1582 /* we will return false to cause the socket to close. */
1586 /* Because the core won't let users or even SERVERS set +o,
1587 * we use the OPERTYPE command to do this.
1589 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1591 if (params.size() != 1)
1593 log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1596 std::string opertype = params[0];
1597 userrec* u = Srv->FindNick(prefix);
1600 u->modes[UM_OPERATOR] = 1;
1601 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1602 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1607 /* Because Andy insists that services-compatible servers must
1608 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1610 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1612 if (params.size() < 3)
1615 userrec* u = Srv->FindNick(params[0]);
1619 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1622 std::deque<std::string> par;
1623 par.push_back(params[1]);
1624 /* This is not required as one is sent in OnUserPostNick below
1626 //DoOneToMany(u->nick,"NICK",par);
1627 Srv->ChangeUserNick(u,params[1]);
1628 u->age = atoi(params[2].c_str());
1634 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1636 if (params.size() < 2)
1639 userrec* u = Srv->FindNick(params[0]);
1643 Srv->JoinUserToChannel(u,params[1],"");
1644 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1649 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1651 if (params.size() < 1)
1654 std::string servermask = params[0];
1656 if (Srv->MatchText(Srv->GetServerName(),servermask))
1658 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1659 Srv->RehashServer();
1660 ReadConfiguration(false);
1662 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1666 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1668 if (params.size() != 2)
1671 std::string nick = params[0];
1672 userrec* u = Srv->FindNick(prefix);
1673 userrec* who = Srv->FindNick(nick);
1677 /* Prepend kill source, if we don't have one */
1678 std::string sourceserv = prefix;
1681 sourceserv = u->server;
1683 if (*(params[1].c_str()) != '[')
1685 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1687 std::string reason = params[1];
1688 params[1] = ":" + params[1];
1689 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1690 ::Write(who->fd, ":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
1691 Srv->QuitUser(who,reason);
1696 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1698 if (params.size() < 1)
1701 if (params.size() == 1)
1703 TreeServer* ServerSource = FindServer(prefix);
1706 ServerSource->SetPingFlag();
1711 std::string forwardto = params[1];
1712 if (forwardto == Srv->GetServerName())
1715 * this is a PONG for us
1716 * if the prefix is a user, check theyre local, and if they are,
1717 * dump the PONG reply back to their fd. If its a server, do nowt.
1718 * Services might want to send these s->s, but we dont need to yet.
1720 userrec* u = Srv->FindNick(prefix);
1724 WriteServ(u->fd,"PONG %s %s",params[0].c_str(),params[1].c_str());
1729 // not for us, pass it on :)
1730 DoOneToOne(prefix,"PONG",params,forwardto);
1737 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
1739 if (params.size() < 3)
1742 TreeServer* ServerSource = FindServer(prefix);
1746 if (params[0] == "*")
1748 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
1750 else if (*(params[0].c_str()) == '#')
1752 chanrec* c = Srv->FindChannel(params[0]);
1755 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
1758 else if (*(params[0].c_str()) != '#')
1760 userrec* u = Srv->FindNick(params[0]);
1763 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
1768 params[2] = ":" + params[2];
1769 DoOneToAllButSender(prefix,"METADATA",params,prefix);
1773 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
1775 if (params.size() < 1)
1778 TreeServer* ServerSource = FindServer(prefix);
1782 ServerSource->SetVersion(params[0]);
1784 params[0] = ":" + params[0];
1785 DoOneToAllButSender(prefix,"VERSION",params,prefix);
1789 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
1791 if (params.size() < 1)
1794 userrec* u = Srv->FindNick(prefix);
1798 Srv->ChangeHost(u,params[0]);
1799 DoOneToAllButSender(prefix,"FHOST",params,u->server);
1804 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
1806 if (params.size() < 6)
1809 bool propogate = false;
1811 switch (*(params[0].c_str()))
1814 propogate = add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1815 zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1818 propogate = add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1819 qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1822 propogate = add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1823 eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1826 propogate = add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1827 gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
1830 propogate = add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1833 /* Just in case... */
1834 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
1839 /* Send it on its way */
1842 if (atoi(params[4].c_str()))
1844 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());
1848 WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
1850 params[5] = ":" + params[5];
1851 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
1853 if (!this->bursting)
1855 log(DEBUG,"Applying lines...");
1856 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
1861 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
1863 if (params.size() < 1)
1866 userrec* u = Srv->FindNick(prefix);
1870 Srv->ChangeGECOS(u,params[0]);
1871 params[0] = ":" + params[0];
1872 DoOneToAllButSender(prefix,"FNAME",params,u->server);
1877 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
1879 if (params.size() < 1)
1882 log(DEBUG,"In IDLE command");
1883 userrec* u = Srv->FindNick(prefix);
1887 log(DEBUG,"USER EXISTS: %s",u->nick);
1888 // an incoming request
1889 if (params.size() == 1)
1891 userrec* x = Srv->FindNick(params[0]);
1892 if ((x) && (x->fd > -1))
1894 userrec* x = Srv->FindNick(params[0]);
1895 log(DEBUG,"Got IDLE");
1896 char signon[MAXBUF];
1898 log(DEBUG,"Sending back IDLE 3");
1899 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
1900 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
1901 std::deque<std::string> par;
1902 par.push_back(prefix);
1903 par.push_back(signon);
1904 par.push_back(idle);
1905 // ours, we're done, pass it BACK
1906 DoOneToOne(params[0],"IDLE",par,u->server);
1910 // not ours pass it on
1911 DoOneToOne(prefix,"IDLE",params,x->server);
1914 else if (params.size() == 3)
1916 std::string who_did_the_whois = params[0];
1917 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
1918 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1920 log(DEBUG,"Got final IDLE");
1921 // an incoming reply to a whois we sent out
1922 std::string nick_whoised = prefix;
1923 unsigned long signon = atoi(params[1].c_str());
1924 unsigned long idle = atoi(params[2].c_str());
1925 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1926 do_whois(who_to_send_to,u,signon,idle,nick_whoised.c_str());
1930 // not ours, pass it on
1931 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
1938 bool Push(std::string prefix, std::deque<std::string> ¶ms)
1940 if (params.size() < 2)
1943 userrec* u = Srv->FindNick(params[0]);
1950 // push the raw to the user
1951 if (Srv->IsUlined(prefix))
1953 ::Write(u->fd,"%s",params[1].c_str());
1957 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());
1962 // continue the raw onwards
1963 params[1] = ":" + params[1];
1964 DoOneToOne(prefix,"PUSH",params,u->server);
1969 bool Time(std::string prefix, std::deque<std::string> ¶ms)
1971 // :source.server TIME remote.server sendernick
1972 // :remote.server TIME source.server sendernick TS
1973 if (params.size() == 2)
1975 // someone querying our time?
1976 if (Srv->GetServerName() == params[0])
1978 userrec* u = Srv->FindNick(params[1]);
1982 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
1983 params.push_back(curtime);
1985 DoOneToOne(Srv->GetServerName(),"TIME",params,params[0]);
1990 // not us, pass it on
1991 userrec* u = Srv->FindNick(params[1]);
1993 DoOneToOne(prefix,"TIME",params,params[0]);
1996 else if (params.size() == 3)
1998 // a response to a previous TIME
1999 userrec* u = Srv->FindNick(params[1]);
2000 if ((u) && (IS_LOCAL(u)))
2002 time_t rawtime = atol(params[2].c_str());
2003 struct tm * timeinfo;
2004 timeinfo = localtime(&rawtime);
2006 snprintf(tms,26,"%s",asctime(timeinfo));
2008 WriteServ(u->fd,"391 %s %s :%s",u->nick,prefix.c_str(),tms);
2013 DoOneToOne(prefix,"TIME",params,u->server);
2019 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2021 if (params.size() < 1)
2024 if (params.size() == 1)
2026 std::string stufftobounce = params[0];
2027 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
2032 std::string forwardto = params[1];
2033 if (forwardto == Srv->GetServerName())
2035 // this is a ping for us, send back PONG to the requesting server
2036 params[1] = params[0];
2037 params[0] = forwardto;
2038 DoOneToOne(forwardto,"PONG",params,params[1]);
2042 // not for us, pass it on :)
2043 DoOneToOne(prefix,"PING",params,forwardto);
2049 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2051 if (params.size() < 4)
2054 std::string servername = params[0];
2055 std::string password = params[1];
2056 // hopcount is not used for a remote server, we calculate this ourselves
2057 std::string description = params[3];
2058 TreeServer* ParentOfThis = FindServer(prefix);
2062 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2065 TreeServer* CheckDupe = FindServer(servername);
2068 this->WriteLine("ERROR :Server "+servername+" already exists!");
2069 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2072 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
2073 ParentOfThis->AddChild(Node);
2074 params[3] = ":" + params[3];
2075 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2076 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2080 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2082 if (params.size() < 4)
2085 irc::string servername = params[0].c_str();
2086 std::string sname = params[0];
2087 std::string password = params[1];
2088 int hops = atoi(params[2].c_str());
2092 this->WriteLine("ERROR :Server too far away for authentication");
2093 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2096 std::string description = params[3];
2097 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2099 if ((x->Name == servername) && (x->RecvPass == password))
2101 TreeServer* CheckDupe = FindServer(sname);
2104 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2105 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2108 // Begin the sync here. this kickstarts the
2109 // other side, waiting in WAIT_AUTH_2 state,
2110 // into starting their burst, as it shows
2111 // that we're happy.
2112 this->LinkState = CONNECTED;
2113 // we should add the details of this server now
2114 // to the servers tree, as a child of the root
2116 TreeServer* Node = new TreeServer(sname,description,TreeRoot,this);
2117 TreeRoot->AddChild(Node);
2118 params[3] = ":" + params[3];
2119 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2120 this->bursting = true;
2121 this->DoBurst(Node);
2125 this->WriteLine("ERROR :Invalid credentials");
2126 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2130 bool Inbound_Server(std::deque<std::string> ¶ms)
2132 if (params.size() < 4)
2135 irc::string servername = params[0].c_str();
2136 std::string sname = params[0];
2137 std::string password = params[1];
2138 int hops = atoi(params[2].c_str());
2142 this->WriteLine("ERROR :Server too far away for authentication");
2143 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2146 std::string description = params[3];
2147 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2149 if ((x->Name == servername) && (x->RecvPass == password))
2151 TreeServer* CheckDupe = FindServer(sname);
2154 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2155 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2158 /* If the config says this link is encrypted, but the remote side
2159 * hasnt bothered to send the AES command before SERVER, then we
2160 * boot them off as we MUST have this connection encrypted.
2162 if ((x->EncryptionKey != "") && (!this->ctx_in))
2164 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2165 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2168 Srv->SendOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2169 this->InboundServerName = sname;
2170 this->InboundDescription = description;
2171 // this is good. Send our details: Our server name and description and hopcount of 0,
2172 // along with the sendpass from this block.
2173 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
2174 // move to the next state, we are now waiting for THEM.
2175 this->LinkState = WAIT_AUTH_2;
2179 this->WriteLine("ERROR :Invalid credentials");
2180 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2184 void Split(std::string line, std::deque<std::string> &n)
2187 irc::tokenstream tokens(line);
2189 while ((param = tokens.GetToken()) != "")
2194 bool ProcessLine(std::string line)
2196 std::deque<std::string> params;
2197 irc::string command;
2203 line = line.substr(0, line.find_first_of("\r\n"));
2205 log(DEBUG,"IN: %s", line.c_str());
2207 this->Split(line.c_str(),params);
2209 if ((params[0][0] == ':') && (params.size() > 1))
2211 prefix = params[0].substr(1);
2215 command = params[0].c_str();
2218 if ((!this->ctx_in) && (command == "AES"))
2220 std::string sserv = params[0];
2221 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2223 if ((x->EncryptionKey != "") && (x->Name == sserv))
2225 this->InitAES(x->EncryptionKey,sserv);
2231 else if ((this->ctx_in) && (command == "AES"))
2233 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2236 switch (this->LinkState)
2241 // Waiting for SERVER command from remote server. Server initiating
2242 // the connection sends the first SERVER command, listening server
2243 // replies with theirs if its happy, then if the initiator is happy,
2244 // it starts to send its net sync, which starts the merge, otherwise
2245 // it sends an ERROR.
2246 if (command == "PASS")
2248 /* Silently ignored */
2250 else if (command == "SERVER")
2252 return this->Inbound_Server(params);
2254 else if (command == "ERROR")
2256 return this->Error(params);
2258 else if (command == "USER")
2260 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2263 else if (command == "CAPAB")
2265 return this->Capab(params);
2267 else if ((command == "U") || (command == "S"))
2269 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2274 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2279 // Waiting for start of other side's netmerge to say they liked our
2281 if (command == "SERVER")
2283 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2287 else if ((command == "U") || (command == "S"))
2289 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2292 else if (command == "BURST")
2296 /* If a time stamp is provided, try and check syncronization */
2297 time_t THEM = atoi(params[0].c_str());
2298 long delta = THEM-time(NULL);
2299 if ((delta < -600) || (delta > 600))
2301 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));
2302 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2305 else if ((delta < -60) || (delta > 60))
2307 WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2310 this->LinkState = CONNECTED;
2311 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
2312 TreeRoot->AddChild(Node);
2314 params.push_back(InboundServerName);
2315 params.push_back("*");
2316 params.push_back("1");
2317 params.push_back(":"+InboundDescription);
2318 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2319 this->bursting = true;
2320 this->DoBurst(Node);
2322 else if (command == "ERROR")
2324 return this->Error(params);
2326 else if (command == "CAPAB")
2328 return this->Capab(params);
2333 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2337 if (command == "SERVER")
2339 // another server we connected to, which was in WAIT_AUTH_1 state,
2340 // has just sent us their credentials. If we get this far, theyre
2341 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2342 // if we're happy with this, we should send our netburst which
2343 // kickstarts the merge.
2344 return this->Outbound_Reply_Server(params);
2346 else if (command == "ERROR")
2348 return this->Error(params);
2352 // This is the 'authenticated' state, when all passwords
2353 // have been exchanged and anything past this point is taken
2358 std::string direction = prefix;
2359 userrec* t = Srv->FindNick(prefix);
2362 direction = t->server;
2364 TreeServer* route_back_again = BestRouteTo(direction);
2365 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2367 if (route_back_again)
2368 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2373 * When there is activity on the socket, reset the ping counter so
2374 * that we're not wasting bandwidth pinging an active server.
2376 route_back_again->SetNextPingTime(time(NULL) + 120);
2377 route_back_again->SetPingFlag();
2380 if (command == "SVSMODE")
2382 /* Services expects us to implement
2383 * SVSMODE. In inspircd its the same as
2388 std::string target = "";
2389 /* Yes, know, this is a mess. Its reasonably fast though as we're
2390 * working with std::string here.
2392 if ((command == "NICK") && (params.size() > 1))
2394 return this->IntroduceClient(prefix,params);
2396 else if (command == "FJOIN")
2398 return this->ForceJoin(prefix,params);
2400 else if (command == "SERVER")
2402 return this->RemoteServer(prefix,params);
2404 else if (command == "ERROR")
2406 return this->Error(params);
2408 else if (command == "OPERTYPE")
2410 return this->OperType(prefix,params);
2412 else if (command == "FMODE")
2414 return this->ForceMode(prefix,params);
2416 else if (command == "KILL")
2418 return this->RemoteKill(prefix,params);
2420 else if (command == "FTOPIC")
2422 return this->ForceTopic(prefix,params);
2424 else if (command == "REHASH")
2426 return this->RemoteRehash(prefix,params);
2428 else if (command == "METADATA")
2430 return this->MetaData(prefix,params);
2432 else if (command == "PING")
2435 * We just got a ping from a server that's bursting.
2436 * This can't be right, so set them to not bursting, and
2437 * apply their lines.
2441 this->bursting = false;
2442 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2446 prefix = this->GetName();
2448 return this->LocalPing(prefix,params);
2450 else if (command == "PONG")
2453 * We just got a pong from a server that's bursting.
2454 * This can't be right, so set them to not bursting, and
2455 * apply their lines.
2459 this->bursting = false;
2460 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2464 prefix = this->GetName();
2466 return this->LocalPong(prefix,params);
2468 else if (command == "VERSION")
2470 return this->ServerVersion(prefix,params);
2472 else if (command == "FHOST")
2474 return this->ChangeHost(prefix,params);
2476 else if (command == "FNAME")
2478 return this->ChangeName(prefix,params);
2480 else if (command == "ADDLINE")
2482 return this->AddLine(prefix,params);
2484 else if (command == "SVSNICK")
2488 prefix = this->GetName();
2490 return this->ForceNick(prefix,params);
2492 else if (command == "IDLE")
2494 return this->Whois(prefix,params);
2496 else if (command == "PUSH")
2498 return this->Push(prefix,params);
2500 else if (command == "TIME")
2502 return this->Time(prefix,params);
2504 else if ((command == "KICK") && (IsServer(prefix)))
2506 std::string sourceserv = this->myhost;
2507 if (params.size() == 3)
2509 userrec* user = Srv->FindNick(params[1]);
2510 chanrec* chan = Srv->FindChannel(params[0]);
2513 server_kick_channel(user,chan,(char*)params[2].c_str(),false);
2516 if (this->InboundServerName != "")
2518 sourceserv = this->InboundServerName;
2520 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2522 else if (command == "SVSJOIN")
2526 prefix = this->GetName();
2528 return this->ServiceJoin(prefix,params);
2530 else if (command == "SQUIT")
2532 if (params.size() == 2)
2534 this->Squit(FindServer(params[0]),params[1]);
2538 else if (command == "ENDBURST")
2540 this->bursting = false;
2541 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2542 std::string sourceserv = this->myhost;
2543 if (this->InboundServerName != "")
2545 sourceserv = this->InboundServerName;
2547 WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2552 // not a special inter-server command.
2553 // Emulate the actual user doing the command,
2554 // this saves us having a huge ugly parser.
2555 userrec* who = Srv->FindNick(prefix);
2556 std::string sourceserv = this->myhost;
2557 if (this->InboundServerName != "")
2559 sourceserv = this->InboundServerName;
2563 if ((command == "NICK") && (params.size() > 0))
2565 /* On nick messages, check that the nick doesnt
2566 * already exist here. If it does, kill their copy,
2569 userrec* x = Srv->FindNick(params[0]);
2570 if ((x) && (x != who))
2572 std::deque<std::string> p;
2573 p.push_back(params[0]);
2574 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2575 DoOneToMany(Srv->GetServerName(),"KILL",p);
2577 p.push_back(prefix);
2578 p.push_back("Nickname collision");
2579 DoOneToMany(Srv->GetServerName(),"KILL",p);
2580 Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2581 userrec* y = Srv->FindNick(prefix);
2584 Srv->QuitUser(y,"Nickname collision");
2586 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2590 target = who->server;
2591 const char* strparams[127];
2592 for (unsigned int q = 0; q < params.size(); q++)
2594 strparams[q] = params[q].c_str();
2596 if (!Srv->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2598 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2604 // its not a user. Its either a server, or somethings screwed up.
2605 if (IsServer(prefix))
2607 target = Srv->GetServerName();
2611 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2615 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2624 virtual std::string GetName()
2626 std::string sourceserv = this->myhost;
2627 if (this->InboundServerName != "")
2629 sourceserv = this->InboundServerName;
2634 virtual void OnTimeout()
2636 if (this->LinkState == CONNECTING)
2638 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2642 virtual void OnClose()
2644 // Connection closed.
2645 // If the connection is fully up (state CONNECTED)
2646 // then propogate a netsplit to all peers.
2647 std::string quitserver = this->myhost;
2648 if (this->InboundServerName != "")
2650 quitserver = this->InboundServerName;
2652 TreeServer* s = FindServer(quitserver);
2655 Squit(s,"Remote host closed the connection");
2657 WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2660 virtual int OnIncomingConnection(int newsock, char* ip)
2662 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2663 * or discovering if this port is the server port, we don't allow connections from any
2664 * IPs for which we don't have a link block.
2667 char resolved_host[MAXBUF];
2668 vector<Link>::iterator i;
2669 for (i = LinkBlocks.begin(); i != LinkBlocks.end(); i++)
2671 if (i->IPAddr == ip)
2676 /* XXX: Fixme: blocks for a very short amount of time,
2677 * we should cache these on rehash/startup
2679 if (CleanAndResolve(resolved_host,i->IPAddr.c_str(),true))
2681 if (std::string(resolved_host) == ip)
2690 WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
2694 TreeSocket* s = new TreeSocket(newsock, ip);
2700 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2702 for (unsigned int c = 0; c < list.size(); c++)
2704 if (list[c] == server)
2709 list.push_back(server);
2712 // returns a list of DIRECT servernames for a specific channel
2713 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2715 CUList *ulist = c->GetUsers();
2716 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2718 if (i->second->fd < 0)
2720 TreeServer* best = BestRouteTo(i->second->server);
2722 AddThisServer(best,list);
2728 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
2730 TreeServer* omitroute = BestRouteTo(omit);
2731 if ((command == "NOTICE") || (command == "PRIVMSG"))
2733 if (params.size() >= 2)
2736 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
2738 params[0] = params[0].substr(1, params[0].length()-1);
2740 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
2742 // special routing for private messages/notices
2743 userrec* d = Srv->FindNick(params[0]);
2746 std::deque<std::string> par;
2747 par.push_back(params[0]);
2748 par.push_back(":"+params[1]);
2749 DoOneToOne(prefix,command.c_str(),par,d->server);
2753 else if (*(params[0].c_str()) == '$')
2755 std::deque<std::string> par;
2756 par.push_back(params[0]);
2757 par.push_back(":"+params[1]);
2758 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
2763 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
2764 chanrec* c = Srv->FindChannel(params[0]);
2767 std::deque<TreeServer*> list;
2768 GetListOfServersForChannel(c,list);
2769 log(DEBUG,"Got a list of %d servers",list.size());
2770 unsigned int lsize = list.size();
2771 for (unsigned int i = 0; i < lsize; i++)
2773 TreeSocket* Sock = list[i]->GetSocket();
2774 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
2776 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
2777 Sock->WriteLine(data);
2785 unsigned int items = TreeRoot->ChildCount();
2786 for (unsigned int x = 0; x < items; x++)
2788 TreeServer* Route = TreeRoot->GetChild(x);
2789 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2791 TreeSocket* Sock = Route->GetSocket();
2792 Sock->WriteLine(data);
2798 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
2800 TreeServer* omitroute = BestRouteTo(omit);
2801 std::string FullLine = ":" + prefix + " " + command;
2802 unsigned int words = params.size();
2803 for (unsigned int x = 0; x < words; x++)
2805 FullLine = FullLine + " " + params[x];
2807 unsigned int items = TreeRoot->ChildCount();
2808 for (unsigned int x = 0; x < items; x++)
2810 TreeServer* Route = TreeRoot->GetChild(x);
2811 // Send the line IF:
2812 // The route has a socket (its a direct connection)
2813 // The route isnt the one to be omitted
2814 // The route isnt the path to the one to be omitted
2815 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2817 TreeSocket* Sock = Route->GetSocket();
2818 Sock->WriteLine(FullLine);
2824 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
2826 std::string FullLine = ":" + prefix + " " + command;
2827 unsigned int words = params.size();
2828 for (unsigned int x = 0; x < words; x++)
2830 FullLine = FullLine + " " + params[x];
2832 unsigned int items = TreeRoot->ChildCount();
2833 for (unsigned int x = 0; x < items; x++)
2835 TreeServer* Route = TreeRoot->GetChild(x);
2836 if (Route->GetSocket())
2838 TreeSocket* Sock = Route->GetSocket();
2839 Sock->WriteLine(FullLine);
2845 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
2847 TreeServer* Route = BestRouteTo(target);
2850 std::string FullLine = ":" + prefix + " " + command;
2851 unsigned int words = params.size();
2852 for (unsigned int x = 0; x < words; x++)
2854 FullLine = FullLine + " " + params[x];
2856 if (Route->GetSocket())
2858 TreeSocket* Sock = Route->GetSocket();
2859 Sock->WriteLine(FullLine);
2869 std::vector<TreeSocket*> Bindings;
2871 void ReadConfiguration(bool rebind)
2873 Conf = new ConfigReader;
2876 for (int j =0; j < Conf->Enumerate("bind"); j++)
2878 std::string Type = Conf->ReadValue("bind","type",j);
2879 std::string IP = Conf->ReadValue("bind","address",j);
2880 long Port = Conf->ReadInteger("bind","port",j,true);
2881 if (Type == "servers")
2887 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
2888 if (listener->GetState() == I_LISTENING)
2890 Srv->AddSocket(listener);
2891 Bindings.push_back(listener);
2895 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
2902 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
2903 HideULines = Conf->ReadFlag("options","hideulines",0);
2905 for (int j =0; j < Conf->Enumerate("link"); j++)
2908 L.Name = (Conf->ReadValue("link","name",j)).c_str();
2909 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
2910 L.Port = Conf->ReadInteger("link","port",j,true);
2911 L.SendPass = Conf->ReadValue("link","sendpass",j);
2912 L.RecvPass = Conf->ReadValue("link","recvpass",j);
2913 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
2914 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
2915 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
2916 L.NextConnectTime = time(NULL) + L.AutoConnect;
2917 /* Bugfix by brain, do not allow people to enter bad configurations */
2918 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
2920 LinkBlocks.push_back(L);
2921 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
2927 log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
2929 else if (L.RecvPass == "")
2931 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
2933 else if (L.SendPass == "")
2935 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
2937 else if (L.Name == "")
2939 log(DEFAULT,"Invalid configuration, link tag without a name!");
2943 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
2951 class ModuleSpanningTree : public Module
2953 std::vector<TreeSocket*> Bindings;
2956 unsigned int max_local;
2957 unsigned int max_global;
2958 cmd_rconnect* command_rconnect;
2962 ModuleSpanningTree(Server* Me)
2963 : Module::Module(Me), max_local(0), max_global(0)
2968 // Create the root of the tree
2969 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
2971 ReadConfiguration(true);
2973 command_rconnect = new cmd_rconnect(this);
2974 Srv->AddCommand(command_rconnect);
2977 void ShowLinks(TreeServer* Current, userrec* user, int hops)
2979 std::string Parent = TreeRoot->GetName();
2980 if (Current->GetParent())
2982 Parent = Current->GetParent()->GetName();
2984 for (unsigned int q = 0; q < Current->ChildCount(); q++)
2986 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
2990 ShowLinks(Current->GetChild(q),user,hops+1);
2995 ShowLinks(Current->GetChild(q),user,hops+1);
2998 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
2999 if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
3001 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());
3004 int CountLocalServs()
3006 return TreeRoot->ChildCount();
3011 return serverlist.size();
3014 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3016 ShowLinks(TreeRoot,user,0);
3017 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
3021 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3023 unsigned int n_users = usercnt();
3025 /* Only update these when someone wants to see them, more efficient */
3026 if ((unsigned int)local_count() > max_local)
3027 max_local = local_count();
3028 if (n_users > max_global)
3029 max_global = n_users;
3031 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());
3032 if (usercount_opers())
3033 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
3034 if (usercount_unknown())
3035 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
3037 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
3038 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
3039 WriteServ(user->fd,"265 %s :Current Local Users: %d Max: %d",user->nick,local_count(),max_local);
3040 WriteServ(user->fd,"266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3044 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3046 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3050 for (int t = 0; t < depth; t++)
3052 matrix[line][t] = ' ';
3055 // For Aligning, we need to work out exactly how deep this thing is, and produce
3056 // a 'Spacer' String to compensate.
3059 memset(spacer,' ',40);
3060 if ((40 - Current->GetName().length() - depth) > 1) {
3061 spacer[40 - Current->GetName().length() - depth] = '\0';
3070 if (clientlist.size() == 0) {
3071 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3076 percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
3078 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3079 totusers += Current->GetUserCount();
3081 strlcpy(&matrix[line][depth],text,80);
3083 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3085 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3089 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3094 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3100 // Ok, prepare to be confused.
3101 // After much mulling over how to approach this, it struck me that
3102 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3103 // keeping track of a ton of ascii characters, and line by line
3104 // under recursion working out where to place them using multiplications
3105 // and divisons, we instead render the map onto a backplane of characters
3106 // (a character matrix), then draw the branches as a series of "L" shapes
3107 // from the nodes. This is not only friendlier on CPU it uses less stack.
3109 void HandleMap(const char** parameters, int pcnt, userrec* user)
3111 // This array represents a virtual screen which we will
3112 // "scratch" draw to, as the console device of an irc
3113 // client does not provide for a proper terminal.
3115 float totservers = 0;
3116 char matrix[128][80];
3117 for (unsigned int t = 0; t < 128; t++)
3119 matrix[t][0] = '\0';
3122 // The only recursive bit is called here.
3123 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3124 // Process each line one by one. The algorithm has a limit of
3125 // 128 servers (which is far more than a spanning tree should have
3126 // anyway, so we're ok). This limit can be raised simply by making
3127 // the character matrix deeper, 128 rows taking 10k of memory.
3128 for (int l = 1; l < line; l++)
3130 // scan across the line looking for the start of the
3131 // servername (the recursive part of the algorithm has placed
3132 // the servers at indented positions depending on what they
3134 int first_nonspace = 0;
3135 while (matrix[l][first_nonspace] == ' ')
3140 // Draw the `- (corner) section: this may be overwritten by
3141 // another L shape passing along the same vertical pane, becoming
3142 // a |- (branch) section instead.
3143 matrix[l][first_nonspace] = '-';
3144 matrix[l][first_nonspace-1] = '`';
3146 // Draw upwards until we hit the parent server, causing possibly
3147 // other corners (`-) to become branches (|-)
3148 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3150 matrix[l2][first_nonspace-1] = '|';
3154 // dump the whole lot to the user. This is the easy bit, honest.
3155 for (int t = 0; t < line; t++)
3157 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
3159 float avg_users = totusers / totservers;
3160 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);
3161 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
3165 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3167 TreeServer* s = FindServerMask(parameters[0]);
3172 WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3175 TreeSocket* sock = s->GetSocket();
3178 log(DEBUG,"Splitting server %s",s->GetName().c_str());
3179 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3180 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3181 Srv->RemoveSocket(sock);
3185 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3190 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3195 int HandleTime(const char** parameters, int pcnt, userrec* user)
3197 if ((user->fd > -1) && (pcnt))
3199 TreeServer* found = FindServerMask(parameters[0]);
3202 // we dont' override for local server
3203 if (found == TreeRoot)
3206 std::deque<std::string> params;
3207 params.push_back(found->GetName());
3208 params.push_back(user->nick);
3209 DoOneToOne(Srv->GetServerName(),"TIME",params,found->GetName());
3213 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3219 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3221 if ((user->fd > -1) && (pcnt > 1))
3223 userrec* remote = Srv->FindNick(parameters[1]);
3224 if ((remote) && (remote->fd < 0))
3226 std::deque<std::string> params;
3227 params.push_back(parameters[1]);
3228 DoOneToOne(user->nick,"IDLE",params,remote->server);
3233 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3234 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3241 void DoPingChecks(time_t curtime)
3243 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3245 TreeServer* serv = TreeRoot->GetChild(j);
3246 TreeSocket* sock = serv->GetSocket();
3249 if (curtime >= serv->NextPingTime())
3251 if (serv->AnsweredLastPing())
3253 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
3254 serv->SetNextPingTime(curtime + 120);
3258 // they didnt answer, boot them
3259 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3260 sock->Squit(serv,"Ping timeout");
3261 Srv->RemoveSocket(sock);
3269 void AutoConnectServers(time_t curtime)
3271 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3273 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3275 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3276 x->NextConnectTime = curtime + x->AutoConnect;
3277 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3280 // an autoconnected server is not connected. Check if its time to connect it
3281 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3282 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3283 if (newsocket->GetFd() > -1)
3285 Srv->AddSocket(newsocket);
3289 WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3297 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3299 // we've already checked if pcnt > 0, so this is safe
3300 TreeServer* found = FindServerMask(parameters[0]);
3303 std::string Version = found->GetVersion();
3304 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
3305 if (found == TreeRoot)
3307 std::stringstream out(Config->data005);
3308 std::string token = "";
3309 std::string line5 = "";
3310 int token_counter = 0;
3315 line5 = line5 + token + " ";
3318 if ((token_counter >= 13) || (out.eof() == true))
3320 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
3329 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3334 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3336 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3338 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
3340 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3343 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);
3344 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3345 if (newsocket->GetFd() > -1)
3347 Srv->AddSocket(newsocket);
3351 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Error connecting \002%s\002: %s.",user->nick,x->Name.c_str(),strerror(errno));
3358 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());
3363 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3367 virtual int OnStats(char statschar, userrec* user)
3369 if (statschar == 'c')
3371 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3373 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');
3374 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
3376 WriteServ(user->fd,"219 %s %c :End of /STATS report",user->nick,statschar);
3377 WriteOpers("*** Notice: Stats '%c' requested by %s (%s@%s)",statschar,user->nick,user->ident,user->host);
3383 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3385 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3389 if (command == "CONNECT")
3391 return this->HandleConnect(parameters,pcnt,user);
3393 else if (command == "SQUIT")
3395 return this->HandleSquit(parameters,pcnt,user);
3397 else if (command == "MAP")
3399 this->HandleMap(parameters,pcnt,user);
3402 else if ((command == "TIME") && (pcnt > 0))
3404 return this->HandleTime(parameters,pcnt,user);
3406 else if (command == "LUSERS")
3408 this->HandleLusers(parameters,pcnt,user);
3411 else if (command == "LINKS")
3413 this->HandleLinks(parameters,pcnt,user);
3416 else if (command == "WHOIS")
3421 return this->HandleRemoteWhois(parameters,pcnt,user);
3424 else if ((command == "VERSION") && (pcnt > 0))
3426 this->HandleVersion(parameters,pcnt,user);
3429 else if (Srv->IsValidModuleCommand(command, pcnt, user))
3431 // this bit of code cleverly routes all module commands
3432 // to all remote severs *automatically* so that modules
3433 // can just handle commands locally, without having
3434 // to have any special provision in place for remote
3435 // commands and linking protocols.
3436 std::deque<std::string> params;
3438 for (int j = 0; j < pcnt; j++)
3440 if (strchr(parameters[j],' '))
3442 params.push_back(":" + std::string(parameters[j]));
3446 params.push_back(std::string(parameters[j]));
3449 log(DEBUG,"Globally route '%s'",command.c_str());
3450 DoOneToMany(user->nick,command,params);
3455 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3457 TreeServer* s = FindServer(servername);
3460 description = s->GetDesc();
3464 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3466 if (source->fd > -1)
3468 std::deque<std::string> params;
3469 params.push_back(dest->nick);
3470 params.push_back(channel->name);
3471 DoOneToMany(source->nick,"INVITE",params);
3475 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3477 std::deque<std::string> params;
3478 params.push_back(chan->name);
3479 params.push_back(":"+topic);
3480 DoOneToMany(user->nick,"TOPIC",params);
3483 virtual void OnWallops(userrec* user, const std::string &text)
3487 std::deque<std::string> params;
3488 params.push_back(":"+text);
3489 DoOneToMany(user->nick,"WALLOPS",params);
3493 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3495 if (target_type == TYPE_USER)
3497 userrec* d = (userrec*)dest;
3498 if ((d->fd < 0) && (user->fd > -1))
3500 std::deque<std::string> params;
3502 params.push_back(d->nick);
3503 params.push_back(":"+text);
3504 DoOneToOne(user->nick,"NOTICE",params,d->server);
3507 else if (target_type == TYPE_CHANNEL)
3511 chanrec *c = (chanrec*)dest;
3512 std::string cname = c->name;
3514 cname = status + cname;
3515 std::deque<TreeServer*> list;
3516 GetListOfServersForChannel(c,list);
3517 unsigned int ucount = list.size();
3518 for (unsigned int i = 0; i < ucount; i++)
3520 TreeSocket* Sock = list[i]->GetSocket();
3522 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
3526 else if (target_type == TYPE_SERVER)
3530 char* target = (char*)dest;
3531 std::deque<std::string> par;
3532 par.push_back(target);
3533 par.push_back(":"+text);
3534 DoOneToMany(user->nick,"NOTICE",par);
3539 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
3541 if (target_type == TYPE_USER)
3543 // route private messages which are targetted at clients only to the server
3544 // which needs to receive them
3545 userrec* d = (userrec*)dest;
3546 if ((d->fd < 0) && (user->fd > -1))
3548 std::deque<std::string> params;
3550 params.push_back(d->nick);
3551 params.push_back(":"+text);
3552 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
3555 else if (target_type == TYPE_CHANNEL)
3559 chanrec *c = (chanrec*)dest;
3560 std::string cname = c->name;
3562 cname = status + cname;
3563 std::deque<TreeServer*> list;
3564 GetListOfServersForChannel(c,list);
3565 unsigned int ucount = list.size();
3566 for (unsigned int i = 0; i < ucount; i++)
3568 TreeSocket* Sock = list[i]->GetSocket();
3570 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
3574 else if (target_type == TYPE_SERVER)
3578 char* target = (char*)dest;
3579 std::deque<std::string> par;
3580 par.push_back(target);
3581 par.push_back(":"+text);
3582 DoOneToMany(user->nick,"PRIVMSG",par);
3587 virtual void OnBackgroundTimer(time_t curtime)
3589 AutoConnectServers(curtime);
3590 DoPingChecks(curtime);
3593 virtual void OnUserJoin(userrec* user, chanrec* channel)
3595 // Only do this for local users
3598 std::deque<std::string> params;
3600 params.push_back(channel->name);
3602 if (channel->GetUserCounter() > 1)
3604 // not the first in the channel
3605 DoOneToMany(user->nick,"JOIN",params);
3609 // first in the channel, set up their permissions
3610 // and the channel TS with FJOIN.
3612 snprintf(ts,24,"%lu",(unsigned long)channel->age);
3614 params.push_back(channel->name);
3615 params.push_back(ts);
3616 params.push_back("@"+std::string(user->nick));
3617 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
3622 virtual void OnChangeHost(userrec* user, const std::string &newhost)
3624 // only occurs for local clients
3625 if (user->registered != 7)
3627 std::deque<std::string> params;
3628 params.push_back(newhost);
3629 DoOneToMany(user->nick,"FHOST",params);
3632 virtual void OnChangeName(userrec* user, const std::string &gecos)
3634 // only occurs for local clients
3635 if (user->registered != 7)
3637 std::deque<std::string> params;
3638 params.push_back(gecos);
3639 DoOneToMany(user->nick,"FNAME",params);
3642 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
3646 std::deque<std::string> params;
3647 params.push_back(channel->name);
3648 if (partmessage != "")
3649 params.push_back(":"+partmessage);
3650 DoOneToMany(user->nick,"PART",params);
3654 virtual void OnUserConnect(userrec* user)
3656 char agestr[MAXBUF];
3659 std::deque<std::string> params;
3660 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
3661 params.push_back(agestr);
3662 params.push_back(user->nick);
3663 params.push_back(user->host);
3664 params.push_back(user->dhost);
3665 params.push_back(user->ident);
3666 params.push_back("+"+std::string(user->FormatModes()));
3667 params.push_back((char*)inet_ntoa(user->ip4));
3668 params.push_back(":"+std::string(user->fullname));
3669 DoOneToMany(Srv->GetServerName(),"NICK",params);
3671 // User is Local, change needs to be reflected!
3672 TreeServer* SourceServer = FindServer(user->server);
3675 SourceServer->AddUserCount();
3681 virtual void OnUserQuit(userrec* user, const std::string &reason)
3683 if ((user->fd > -1) && (user->registered == 7))
3685 std::deque<std::string> params;
3686 params.push_back(":"+reason);
3687 DoOneToMany(user->nick,"QUIT",params);
3689 // Regardless, We need to modify the user Counts..
3690 TreeServer* SourceServer = FindServer(user->server);
3693 SourceServer->DelUserCount();
3698 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
3702 std::deque<std::string> params;
3703 params.push_back(user->nick);
3704 DoOneToMany(oldnick,"NICK",params);
3708 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
3710 if ((source) && (source->fd > -1))
3712 std::deque<std::string> params;
3713 params.push_back(chan->name);
3714 params.push_back(user->nick);
3715 params.push_back(":"+reason);
3716 DoOneToMany(source->nick,"KICK",params);
3720 std::deque<std::string> params;
3721 params.push_back(chan->name);
3722 params.push_back(user->nick);
3723 params.push_back(":"+reason);
3724 DoOneToMany(Srv->GetServerName(),"KICK",params);
3728 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
3730 std::deque<std::string> params;
3731 params.push_back(dest->nick);
3732 params.push_back(":"+reason);
3733 DoOneToMany(source->nick,"KILL",params);
3736 virtual void OnRehash(const std::string ¶meter)
3738 if (parameter != "")
3740 std::deque<std::string> params;
3741 params.push_back(parameter);
3742 DoOneToMany(Srv->GetServerName(),"REHASH",params);
3744 if (Srv->MatchText(Srv->GetServerName(),parameter))
3746 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
3747 Srv->RehashServer();
3750 ReadConfiguration(false);
3753 // note: the protocol does not allow direct umode +o except
3754 // via NICK with 8 params. sending OPERTYPE infers +o modechange
3756 virtual void OnOper(userrec* user, const std::string &opertype)
3760 std::deque<std::string> params;
3761 params.push_back(opertype);
3762 DoOneToMany(user->nick,"OPERTYPE",params);
3766 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
3768 if (source->fd > -1)
3771 snprintf(type,8,"%cLINE",linetype);
3772 std::string stype = type;
3775 char sduration[MAXBUF];
3776 snprintf(sduration,MAXBUF,"%ld",duration);
3777 std::deque<std::string> params;
3778 params.push_back(host);
3779 params.push_back(sduration);
3780 params.push_back(":"+reason);
3781 DoOneToMany(source->nick,stype,params);
3785 std::deque<std::string> params;
3786 params.push_back(host);
3787 DoOneToMany(source->nick,stype,params);
3792 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3794 OnLine(source,hostmask,true,'G',duration,reason);
3797 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
3799 OnLine(source,ipmask,true,'Z',duration,reason);
3802 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
3804 OnLine(source,nickmask,true,'Q',duration,reason);
3807 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3809 OnLine(source,hostmask,true,'E',duration,reason);
3812 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
3814 OnLine(source,hostmask,false,'G',0,"");
3817 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
3819 OnLine(source,ipmask,false,'Z',0,"");
3822 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
3824 OnLine(source,nickmask,false,'Q',0,"");
3827 virtual void OnDelELine(userrec* source, const std::string &hostmask)
3829 OnLine(source,hostmask,false,'E',0,"");
3832 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
3834 if ((user->fd > -1) && (user->registered == 7))
3836 if (target_type == TYPE_USER)
3838 userrec* u = (userrec*)dest;
3839 std::deque<std::string> params;
3840 params.push_back(u->nick);
3841 params.push_back(text);
3842 DoOneToMany(user->nick,"MODE",params);
3846 chanrec* c = (chanrec*)dest;
3847 std::deque<std::string> params;
3848 params.push_back(c->name);
3849 params.push_back(text);
3850 DoOneToMany(user->nick,"MODE",params);
3855 virtual void OnSetAway(userrec* user)
3859 std::deque<std::string> params;
3860 params.push_back(":"+std::string(user->awaymsg));
3861 DoOneToMany(user->nick,"AWAY",params);
3865 virtual void OnCancelAway(userrec* user)
3869 std::deque<std::string> params;
3871 DoOneToMany(user->nick,"AWAY",params);
3875 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
3877 TreeSocket* s = (TreeSocket*)opaque;
3880 if (target_type == TYPE_USER)
3882 userrec* u = (userrec*)target;
3883 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
3887 chanrec* c = (chanrec*)target;
3888 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
3893 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
3895 TreeSocket* s = (TreeSocket*)opaque;
3898 if (target_type == TYPE_USER)
3900 userrec* u = (userrec*)target;
3901 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
3903 else if (target_type == TYPE_OTHER)
3905 s->WriteLine(":"+Srv->GetServerName()+" METADATA * "+extname+" :"+extdata);
3907 else if (target_type == TYPE_CHANNEL)
3909 chanrec* c = (chanrec*)target;
3910 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
3915 virtual void OnEvent(Event* event)
3917 if (event->GetEventID() == "send_metadata")
3919 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
3920 if (params->size() < 3)
3922 (*params)[2] = ":" + (*params)[2];
3923 DoOneToMany(Srv->GetServerName(),"METADATA",*params);
3925 else if (event->GetEventID() == "send_mode")
3927 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
3928 if (params->size() < 2)
3930 // Insert the TS value of the object, either userrec or chanrec
3932 userrec* a = Srv->FindNick((*params)[0]);
3939 chanrec* a = Srv->FindChannel((*params)[0]);
3945 params->insert(params->begin() + 1,ConvToStr(ourTS));
3946 DoOneToMany(Srv->GetServerName(),"FMODE",*params);
3950 virtual ~ModuleSpanningTree()
3954 virtual Version GetVersion()
3956 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
3959 void Implements(char* List)
3961 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
3962 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
3963 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
3964 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
3965 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
3966 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
3967 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
3970 /* It is IMPORTANT that m_spanningtree is the last module in the chain
3971 * so that any activity it sees is FINAL, e.g. we arent going to send out
3972 * a NICK message before m_cloaking has finished putting the +x on the user,
3974 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
3975 * the module call queue.
3977 Priority Prioritize()
3979 return PRIORITY_LAST;
3984 class ModuleSpanningTreeFactory : public ModuleFactory
3987 ModuleSpanningTreeFactory()
3991 ~ModuleSpanningTreeFactory()
3995 virtual Module * CreateModule(Server* Me)
3997 TreeProtocolModule = new ModuleSpanningTree(Me);
3998 return TreeProtocolModule;
4004 extern "C" void * init_module( void )
4006 return new ModuleSpanningTreeFactory;