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"
33 #include "commands/cmd_stats.h"
38 #include "inspstring.h"
42 #include "cull_list.h"
45 #define nspace __gnu_cxx
48 * The server list in InspIRCd is maintained as two structures
49 * which hold the data in different ways. Most of the time, we
50 * want to very quicky obtain three pieces of information:
52 * (1) The information on a server
53 * (2) The information on the server we must send data through
54 * to actually REACH the server we're after
55 * (3) Potentially, the child/parent objects of this server
57 * The InspIRCd spanning protocol provides easy access to these
58 * by storing the data firstly in a recursive structure, where
59 * each item references its parent item, and a dynamic list
60 * of child items, and another structure which stores the items
61 * hashed, linearly. This means that if we want to find a server
62 * by name quickly, we can look it up in the hash, avoiding
63 * any O(n) lookups. If however, during a split or sync, we want
64 * to apply an operation to a server, and any of its child objects
65 * we can resort to recursion to walk the tree structure.
68 using irc::sockets::MatchCIDR;
70 class ModuleSpanningTree;
71 static ModuleSpanningTree* TreeProtocolModule;
72 static InspIRCd* ServerInstance;
74 /* Any socket can have one of five states at any one time.
75 * The LISTENER state indicates a socket which is listening
76 * for connections. It cannot receive data itself, only incoming
78 * The CONNECTING state indicates an outbound socket which is
79 * waiting to be writeable.
80 * The WAIT_AUTH_1 state indicates the socket is outbound and
81 * has successfully connected, but has not yet sent and received
83 * The WAIT_AUTH_2 state indicates that the socket is inbound
84 * (allocated by a LISTENER) but has not yet sent and received
86 * The CONNECTED state represents a fully authorized, fully
89 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
91 /* Foward declarations */
95 /* This variable represents the root of the server tree
96 * (for all intents and purposes, it's us)
100 /* This hash_map holds the hash equivalent of the server
101 * tree, used for rapid linear lookups.
103 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
104 server_hash serverlist;
106 typedef nspace::hash_map<std::string, userrec*> uid_hash;
107 typedef nspace::hash_map<std::string, char*> sid_hash;
109 /* More forward declarations */
110 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
111 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
112 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
113 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
114 void ReadConfiguration(bool rebind);
116 /* Flatten links and /MAP for non-opers */
118 /* Hide U-Lined servers in /MAP and /LINKS */
121 std::vector<std::string> ValidIPs;
123 class UserManager : public classbase
134 std::string UserToUID(userrec* user)
139 std::string UIDToUser(const std::string &UID)
144 std::string CreateAndAdd(userrec* user)
149 std::string CreateAndAdd(const std::string &servername)
154 std::string ServerToSID(const std::string &servername)
159 std::string SIDToServer(const std::string &SID)
164 userrec* FindByID(const std::string &UID)
171 /* Each server in the tree is represented by one class of
172 * type TreeServer. A locally connected TreeServer can
173 * have a class of type TreeSocket associated with it, for
174 * remote servers, the TreeSocket entry will be NULL.
175 * Each server also maintains a pointer to its parent
176 * (NULL if this server is ours, at the top of the tree)
177 * and a pointer to its "Route" (see the comments in the
178 * constructors below), and also a dynamic list of pointers
179 * to its children which can be iterated recursively
180 * if required. Creating or deleting objects of type
181 i* TreeServer automatically maintains the hash_map of
182 * TreeServer items, deleting and inserting them as they
183 * are created and destroyed.
186 class TreeServer : public classbase
188 InspIRCd* ServerInstance; /* Creator */
189 TreeServer* Parent; /* Parent entry */
190 TreeServer* Route; /* Route entry */
191 std::vector<TreeServer*> Children; /* List of child objects */
192 irc::string ServerName; /* Server's name */
193 std::string ServerDesc; /* Server's description */
194 std::string VersionString; /* Version string or empty string */
195 int UserCount; /* Not used in this version */
196 int OperCount; /* Not used in this version */
197 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
198 time_t NextPing; /* After this time, the server should be PINGed*/
199 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
203 /* We don't use this constructor. Its a dummy, and won't cause any insertion
204 * of the TreeServer into the hash_map. See below for the two we DO use.
206 TreeServer(InspIRCd* Instance) : ServerInstance(Instance)
212 UserCount = OperCount = 0;
213 VersionString = ServerInstance->GetVersionString();
216 /* We use this constructor only to create the 'root' item, TreeRoot, which
217 * represents our own server. Therefore, it has no route, no parent, and
218 * no socket associated with it. Its version string is our own local version.
220 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc)
224 UserCount = OperCount = 0;
225 VersionString = ServerInstance->GetVersionString();
227 Socket = NULL; /* Fix by brain */
231 /* When we create a new server, we call this constructor to initialize it.
232 * This constructor initializes the server's Route and Parent, and sets up
233 * its ping counters so that it will be pinged one minute from now.
235 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
236 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
239 UserCount = OperCount = 0;
240 this->SetNextPingTime(time(NULL) + 120);
243 /* find the 'route' for this server (e.g. the one directly connected
244 * to the local server, which we can use to reach it)
246 * In the following example, consider we have just added a TreeServer
247 * class for server G on our network, of which we are server A.
248 * To route traffic to G (marked with a *) we must send the data to
249 * B (marked with a +) so this algorithm initializes the 'Route'
250 * value to point at whichever server traffic must be routed through
251 * to get here. If we were to try this algorithm with server B,
252 * the Route pointer would point at its own object ('this').
262 * We only run this algorithm when a server is created, as
263 * the routes remain constant while ever the server exists, and
264 * do not need to be re-calculated.
268 if (Route == TreeRoot)
274 while (this->Route->GetParent() != TreeRoot)
276 this->Route = Route->GetParent();
280 /* Because recursive code is slow and takes a lot of resources,
281 * we store two representations of the server tree. The first
282 * is a recursive structure where each server references its
283 * children and its parent, which is used for netbursts and
284 * netsplits to dump the whole dataset to the other server,
285 * and the second is used for very fast lookups when routing
286 * messages and is instead a hash_map, where each item can
287 * be referenced by its server name. The AddHashEntry()
288 * call below automatically inserts each TreeServer class
289 * into the hash_map as it is created. There is a similar
290 * maintainance call in the destructor to tidy up deleted
294 this->AddHashEntry();
297 int QuitUsers(const std::string &reason)
299 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
300 const char* reason_s = reason.c_str();
301 std::vector<userrec*> time_to_die;
302 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
304 if (!strcmp(n->second->server, this->ServerName.c_str()))
306 time_to_die.push_back(n->second);
309 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
311 userrec* a = (userrec*)*n;
312 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
314 userrec::QuitUser(ServerInstance,a,reason_s);
316 return time_to_die.size();
319 /* This method is used to add the structure to the
320 * hash_map for linear searches. It is only called
321 * by the constructors.
325 server_hash::iterator iter;
326 iter = serverlist.find(this->ServerName.c_str());
327 if (iter == serverlist.end())
328 serverlist[this->ServerName.c_str()] = this;
331 /* This method removes the reference to this object
332 * from the hash_map which is used for linear searches.
333 * It is only called by the default destructor.
337 server_hash::iterator iter;
338 iter = serverlist.find(this->ServerName.c_str());
339 if (iter != serverlist.end())
340 serverlist.erase(iter);
343 /* These accessors etc should be pretty self-
347 TreeServer* GetRoute()
352 std::string GetName()
354 return ServerName.c_str();
357 std::string GetDesc()
362 std::string GetVersion()
364 return VersionString;
367 void SetNextPingTime(time_t t)
370 LastPingWasGood = false;
373 time_t NextPingTime()
378 bool AnsweredLastPing()
380 return LastPingWasGood;
385 LastPingWasGood = true;
408 TreeSocket* GetSocket()
413 TreeServer* GetParent()
418 void SetVersion(std::string Version)
420 VersionString = Version;
423 unsigned int ChildCount()
425 return Children.size();
428 TreeServer* GetChild(unsigned int n)
430 if (n < Children.size())
432 /* Make sure they cant request
433 * an out-of-range object. After
434 * all we know what these programmer
435 * types are like *grin*.
445 void AddChild(TreeServer* Child)
447 Children.push_back(Child);
450 bool DelChild(TreeServer* Child)
452 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
463 /* Removes child nodes of this node, and of that node, etc etc.
464 * This is used during netsplits to automatically tidy up the
465 * server tree. It is slow, we don't use it for much else.
469 bool stillchildren = true;
470 while (stillchildren)
472 stillchildren = false;
473 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
475 TreeServer* s = (TreeServer*)*a;
479 stillchildren = true;
488 /* We'd better tidy up after ourselves, eh? */
489 this->DelHashEntry();
493 /* The Link class might as well be a struct,
494 * but this is C++ and we don't believe in structs (!).
495 * It holds the entire information of one <link>
496 * tag from the main config file. We maintain a list
497 * of them, and populate the list on rehash/load.
500 class Link : public classbase
506 std::string SendPass;
507 std::string RecvPass;
508 unsigned long AutoConnect;
509 time_t NextConnectTime;
510 std::string EncryptionKey;
511 bool HiddenFromStats;
514 /* The usual stuff for inspircd modules,
515 * plus the vector of Link classes which we
516 * use to store the <link> tags from the config
520 std::vector<Link> LinkBlocks;
522 /* Yay for fast searches!
523 * This is hundreds of times faster than recursion
524 * or even scanning a linked list, especially when
525 * there are more than a few servers to deal with.
528 TreeServer* FindServer(std::string ServerName)
530 server_hash::iterator iter;
531 iter = serverlist.find(ServerName.c_str());
532 if (iter != serverlist.end())
542 /* Returns the locally connected server we must route a
543 * message through to reach server 'ServerName'. This
544 * only applies to one-to-one and not one-to-many routing.
545 * See the comments for the constructor of TreeServer
548 TreeServer* BestRouteTo(std::string ServerName)
550 if (ServerName.c_str() == TreeRoot->GetName())
552 TreeServer* Found = FindServer(ServerName);
555 return Found->GetRoute();
563 /* Find the first server matching a given glob mask.
564 * Theres no find-using-glob method of hash_map [awwww :-(]
565 * so instead, we iterate over the list using an iterator
566 * and match each one until we get a hit. Yes its slow,
569 TreeServer* FindServerMask(std::string ServerName)
571 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
573 if (match(i->first.c_str(),ServerName.c_str()))
579 /* A convenient wrapper that returns true if a server exists */
580 bool IsServer(std::string ServerName)
582 return (FindServer(ServerName) != NULL);
586 class cmd_rconnect : public command_t
590 cmd_rconnect (InspIRCd* Instance, Module* Callback) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback)
592 this->source = "m_spanningtree.so";
593 syntax = "<remote-server-mask> <servermask>";
596 void Handle (const char** parameters, int pcnt, userrec *user)
598 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
599 /* Is this aimed at our server? */
600 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
602 /* Yes, initiate the given connect */
603 ServerInstance->WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
605 para[0] = parameters[1];
606 Creator->OnPreCommand("CONNECT", para, 1, user, true);
613 /* Every SERVER connection inbound or outbound is represented by
614 * an object of type TreeSocket.
615 * TreeSockets, being inherited from InspSocket, can be tied into
616 * the core socket engine, and we cn therefore receive activity events
617 * for them, just like activex objects on speed. (yes really, that
618 * is a technical term!) Each of these which relates to a locally
619 * connected server is assocated with it, by hooking it onto a
620 * TreeSocket class using its constructor. In this way, we can
621 * maintain a list of servers, some of which are directly connected,
622 * some of which are not.
625 class TreeSocket : public InspSocket
628 std::string in_buffer;
629 ServerState LinkState;
630 std::string InboundServerName;
631 std::string InboundDescription;
633 int num_lost_servers;
635 bool LastPingWasGood;
639 unsigned int keylength;
643 /* Because most of the I/O gubbins are encapsulated within
644 * InspSocket, we just call the superclass constructor for
645 * most of the action, and append a few of our own values
648 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
649 : InspSocket(SI, host, port, listening, maxtime)
652 this->LinkState = LISTENER;
654 this->ctx_out = NULL;
657 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
658 : InspSocket(SI, host, port, listening, maxtime)
661 this->LinkState = CONNECTING;
663 this->ctx_out = NULL;
666 /* When a listening socket gives us a new file descriptor,
667 * we must associate it with a socket without creating a new
668 * connection. This constructor is used for this purpose.
670 TreeSocket(InspIRCd* SI, int newfd, char* ip)
671 : InspSocket(SI, newfd, ip)
673 this->LinkState = WAIT_AUTH_1;
675 this->ctx_out = NULL;
676 this->SendCapabilities();
687 void InitAES(std::string key,std::string SName)
694 ServerInstance->Log(DEBUG,"Initialized AES key %s",key.c_str());
695 // key must be 16, 24, 32 etc bytes (multiple of 8)
696 keylength = key.length();
697 if (!(keylength == 16 || keylength == 24 || keylength == 32))
699 this->Instance->WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
700 ServerInstance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
704 this->Instance->WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
705 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\
706 \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);
707 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\
708 \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);
712 /* When an outbound connection finishes connecting, we receive
713 * this event, and must send our SERVER string to the other
714 * side. If the other side is happy, as outlined in the server
715 * to server docs on the inspircd.org site, the other side
716 * will then send back its own server string.
718 virtual bool OnConnected()
720 if (this->LinkState == CONNECTING)
722 /* we do not need to change state here. */
723 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
725 if (x->Name == this->myhost)
727 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
728 this->SendCapabilities();
729 if (x->EncryptionKey != "")
731 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
733 this->Instance->WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
737 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
738 this->InitAES(x->EncryptionKey,x->Name.c_str());
741 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
742 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
747 /* There is a (remote) chance that between the /CONNECT and the connection
748 * being accepted, some muppet has removed the <link> block and rehashed.
749 * If that happens the connection hangs here until it's closed. Unlikely
750 * and rather harmless.
752 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
756 virtual void OnError(InspSocketError e)
758 /* We don't handle this method, because all our
759 * dirty work is done in OnClose() (see below)
760 * which is still called on error conditions too.
762 if (e == I_ERR_CONNECT)
764 this->Instance->WriteOpers("*** Connection failed: Connection refused");
768 virtual int OnDisconnect()
770 /* For the same reason as above, we don't
771 * handle OnDisconnect()
776 /* Recursively send the server tree with distances as hops.
777 * This is used during network burst to inform the other server
778 * (and any of ITS servers too) of what servers we know about.
779 * If at any point any of these servers already exist on the other
780 * end, our connection may be terminated. The hopcounts given
781 * by this function are relative, this doesn't matter so long as
782 * they are all >1, as all the remote servers re-calculate them
783 * to be relative too, with themselves as hop 0.
785 void SendServers(TreeServer* Current, TreeServer* s, int hops)
788 for (unsigned int q = 0; q < Current->ChildCount(); q++)
790 TreeServer* recursive_server = Current->GetChild(q);
791 if (recursive_server != s)
793 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
794 this->WriteLine(command);
795 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
796 /* down to next level */
797 this->SendServers(recursive_server, s, hops+1);
802 std::string MyCapabilities()
804 std::vector<std::string> modlist;
805 std::string capabilities = "";
807 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
809 if ((this->Instance->modules[i]->GetVersion().Flags & VF_STATIC) || (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON))
810 modlist.push_back(this->Instance->Config->module_names[i]);
812 sort(modlist.begin(),modlist.end());
813 for (unsigned int i = 0; i < modlist.size(); i++)
816 capabilities = capabilities + ",";
817 capabilities = capabilities + modlist[i];
822 void SendCapabilities()
824 this->WriteLine("CAPAB "+MyCapabilities());
827 bool Capab(std::deque<std::string> params)
829 if (params.size() != 1)
831 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
835 if (params[0] != this->MyCapabilities())
837 std::string quitserver = this->myhost;
838 if (this->InboundServerName != "")
840 quitserver = this->InboundServerName;
843 this->Instance->WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
844 this->Instance->WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
845 this->Instance->WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
846 this->Instance->WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
847 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
854 /* This function forces this server to quit, removing this server
855 * and any users on it (and servers and users below that, etc etc).
856 * It's very slow and pretty clunky, but luckily unless your network
857 * is having a REAL bad hair day, this function shouldnt be called
858 * too many times a month ;-)
860 void SquitServer(std::string &from, TreeServer* Current)
862 /* recursively squit the servers attached to 'Current'.
863 * We're going backwards so we don't remove users
864 * while we still need them ;)
866 for (unsigned int q = 0; q < Current->ChildCount(); q++)
868 TreeServer* recursive_server = Current->GetChild(q);
869 this->SquitServer(from,recursive_server);
871 /* Now we've whacked the kids, whack self */
873 num_lost_users += Current->QuitUsers(from);
876 /* This is a wrapper function for SquitServer above, which
877 * does some validation first and passes on the SQUIT to all
878 * other remaining servers.
880 void Squit(TreeServer* Current,std::string reason)
882 if ((Current) && (Current != TreeRoot))
884 std::deque<std::string> params;
885 params.push_back(Current->GetName());
886 params.push_back(":"+reason);
887 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
888 if (Current->GetParent() == TreeRoot)
890 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
894 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
896 num_lost_servers = 0;
898 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
899 SquitServer(from, Current);
901 Current->GetParent()->DelChild(Current);
903 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
907 ServerInstance->Log(DEFAULT,"Squit from unknown server");
911 /* FMODE command - server mode with timestamp checks */
912 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
914 /* Chances are this is a 1.0 FMODE without TS */
915 if (params.size() < 3)
917 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
922 std::string sourceserv;
924 /* Are we dealing with an FMODE from a user, or from a server? */
925 userrec* who = this->Instance->FindNick(source);
928 /* FMODE from a user, set sourceserv to the users server name */
929 sourceserv = who->server;
933 /* FMODE from a server, create a fake user to receive mode feedback */
934 who = new userrec(this->Instance);
935 who->SetFd(FD_MAGIC_NUMBER);
936 smode = true; /* Setting this flag tells us we should free the userrec later */
937 sourceserv = source; /* Set sourceserv to the actual source string */
939 const char* modelist[64];
942 memset(&modelist,0,sizeof(modelist));
943 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
947 /* The timestamp is in this position.
948 * We don't want to pass that up to the
949 * server->client protocol!
951 TS = atoi(params[q].c_str());
955 /* Everything else is fine to append to the modelist */
956 modelist[n++] = params[q].c_str();
960 /* Extract the TS value of the object, either userrec or chanrec */
961 userrec* dst = this->Instance->FindNick(params[0]);
962 chanrec* chan = NULL;
970 chan = this->Instance->FindChan(params[0]);
977 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
982 ServerInstance->Log(DEBUG,"Entering TS equality check");
983 ModeHandler* mh = NULL;
984 unsigned long paramptr = 3;
985 std::string to_bounce = "";
986 std::string to_keep = "";
987 std::vector<std::string> params_to_keep;
988 std::string params_to_bounce = "";
992 char old_bounce_change = 0;
993 /* Merge modes, basically do special stuff to mode with params */
994 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1007 /* We only care about whats being set,
1008 * not whats being unset
1010 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1012 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1014 /* We only want to do special things to
1015 * modes with parameters, we are going to rewrite
1019 adding ? cur_change = '+' : cur_change = '-';
1021 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1023 /* The mode is set here, check which we should keep */
1026 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1028 if (which_to_keep == true)
1030 /* Keep ours, bounce theirs:
1031 * Send back ours to them and
1032 * drop their mode changs
1034 adding ? cur_change = '+' : cur_change = '-';
1035 if (cur_change != old_bounce_change)
1036 to_bounce += cur_change;
1038 old_bounce_change = cur_change;
1040 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1041 params_to_bounce.append(" ").append(ret.second);
1045 /* Keep theirs: Accept their mode change,
1048 adding ? cur_change = '+' : cur_change = '-';
1049 if (cur_change != old_change)
1050 to_keep += cur_change;
1052 old_change = cur_change;
1054 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1055 params_to_keep.push_back(params[paramptr]);
1060 /* Mode isnt set here, we want it */
1061 adding ? cur_change = '+' : cur_change = '-';
1062 if (cur_change != old_change)
1063 to_keep += cur_change;
1065 old_change = cur_change;
1067 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1068 params_to_keep.push_back(params[paramptr]);
1075 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1079 adding ? cur_change = '+' : cur_change = '-';
1081 /* Just keep this, safe to merge with no checks
1082 * it has no parameters
1085 if (cur_change != old_change)
1086 to_keep += cur_change;
1088 old_change = cur_change;
1090 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1092 ServerInstance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1093 params_to_keep.push_back(params[paramptr++]);
1100 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1104 /* Taking a mode away */
1105 adding ? cur_change = '+' : cur_change = '-';
1107 if (cur_change != old_change)
1108 to_keep += cur_change;
1110 old_change = cur_change;
1112 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1113 params_to_keep.push_back(params[paramptr++]);
1120 if (to_bounce.length())
1122 std::deque<std::string> newparams;
1123 newparams.push_back(params[0]);
1124 newparams.push_back(ConvToStr(ourTS));
1125 newparams.push_back(to_bounce+params_to_bounce);
1126 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1129 if (to_keep.length())
1133 modelist[0] = params[0].c_str();
1134 modelist[1] = to_keep.c_str();
1136 if (params_to_keep.size() > 2)
1138 for (q = 2; (q < params_to_keep.size()) && (q < 64); q++)
1140 ServerInstance->Log(DEBUG,"Item %d of %d", q, params_to_keep.size());
1141 modelist[n++] = params_to_keep[q].c_str();
1147 ServerInstance->Log(DEBUG,"Send mode");
1148 this->Instance->SendMode(modelist, n+2, who);
1152 ServerInstance->Log(DEBUG,"Send mode client");
1153 this->Instance->CallCommandHandler("MODE", modelist, n+2, who);
1156 /* HOT POTATO! PASS IT ON! */
1157 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1161 /* U-lined servers always win regardless of their TS */
1162 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1164 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1165 * SHOULD accept it, if its clock is right.
1167 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1168 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1169 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1171 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1172 * writing the code. It took me a while to come up with this solution.
1174 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1177 std::deque<std::string> newparams; /* New parameter list we send back */
1178 newparams.push_back(params[0]); /* Target, user or channel */
1179 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1180 newparams.push_back(""); /* This contains the mode string. For now
1181 * it's empty, we fill it below.
1184 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1185 * set to avoid a desync here.
1187 std::string modebounce = "";
1190 ModeHandler* mh = NULL;
1191 char cur_change = 1;
1192 char old_change = 0;
1193 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1195 /* Iterate over all mode chars in the sent set */
1198 /* Adding or subtracting modes? */
1206 /* Find the mode handler for this mode */
1207 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1209 /* Got a mode handler?
1210 * This also prevents us bouncing modes we have no handler for.
1217 /* Does the mode require a parameter right now?
1218 * If it does, fetch it if we can
1220 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1223 /* Call the ModeSet method to determine if its set with the
1224 * given parameter here or not.
1226 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1228 /* XXX: Really. Dont ask.
1229 * Determine from if its set combined with what the current
1230 * 'state' is (adding or not) as to wether we should 'invert'
1231 * or 'reinforce' the mode change
1233 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1235 /* Quickly determine if we have 'flipped' from + to -,
1236 * or - to +, to prevent unneccessary +/- chars in the
1237 * output string that waste bandwidth
1239 if (cur_change != old_change)
1240 modebounce += cur_change;
1241 old_change = cur_change;
1243 /* Add the mode character to the output string */
1244 modebounce += mh->GetModeChar();
1246 /* We got a parameter back from ModeHandler::ModeSet,
1247 * are we supposed to be sending one out right now?
1249 if (ret.second.length())
1251 if (mh->GetNumParams(cur_change == '+') > 0)
1252 /* Yes we're supposed to be sending out
1253 * the parameter. Make sure it goes
1255 newparams.push_back(ret.second);
1263 /* Update the parameters for FMODE with the new 'bounced' string */
1264 newparams[2] = modebounce;
1265 /* Only send it back the way it came, no need to send it anywhere else */
1266 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1267 ServerInstance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1271 ServerInstance->Log(DEBUG,"Allow modes, TS lower for sender");
1272 /* The server was ulined, but something iffy is up with the TS.
1273 * Sound the alarm bells!
1275 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1277 this->Instance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
1279 /* Allow the mode, route it to either server or user command handling */
1281 this->Instance->SendMode(modelist,n,who);
1283 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1285 /* HOT POTATO! PASS IT ON! */
1286 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1288 /* Are we supposed to free the userrec? */
1295 /* FTOPIC command */
1296 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1298 if (params.size() != 4)
1300 time_t ts = atoi(params[1].c_str());
1301 std::string nsource = source;
1303 chanrec* c = this->Instance->FindChan(params[0]);
1306 if ((ts >= c->topicset) || (!*c->topic))
1308 std::string oldtopic = c->topic;
1309 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1310 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1312 /* if the topic text is the same as the current topic,
1313 * dont bother to send the TOPIC command out, just silently
1314 * update the set time and set nick.
1316 if (oldtopic != params[3])
1318 userrec* user = this->Instance->FindNick(source);
1321 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1325 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1326 nsource = user->server;
1328 /* all done, send it on its way */
1329 params[3] = ":" + params[3];
1330 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1339 /* FJOIN, similar to unreal SJOIN */
1340 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1342 if (params.size() < 3)
1346 char modestring[MAXBUF];
1347 char* mode_users[127];
1348 memset(&mode_users,0,sizeof(mode_users));
1349 mode_users[0] = first;
1350 mode_users[1] = modestring;
1351 strcpy(modestring,"+");
1352 unsigned int modectr = 2;
1354 userrec* who = NULL;
1355 std::string channel = params[0];
1356 time_t TS = atoi(params[1].c_str());
1359 chanrec* chan = this->Instance->FindChan(channel);
1364 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1366 /* default is a high value, which if we dont have this
1367 * channel will let the other side apply their modes.
1369 time_t ourTS = time(NULL)+600;
1370 chanrec* us = this->Instance->FindChan(channel);
1376 ServerInstance->Log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1378 irc::tokenstream users(params[2]);
1379 std::string item = "";
1381 /* do this first, so our mode reversals are correctly received by other servers
1382 * if there is a TS collision.
1384 params[2] = ":" + params[2];
1385 DoOneToAllButSender(source,"FJOIN",params,source);
1387 while ((item = users.GetToken()) != "")
1389 /* process one channel at a time, applying modes. */
1390 char* usr = (char*)item.c_str();
1391 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1392 * (is this even possible?) */
1395 char* permissions = usr;
1396 while (*permissions != ',')
1398 ModeHandler* mh = ServerInstance->Modes->FindPrefix(*permissions);
1401 mode_users[modectr++] = usr;
1402 charlcat(modestring,mh->GetModeChar(),MAXBUF);
1406 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
1407 this->WriteLine(std::string("ERROR :What?! You sent me a mode prefix i cant handle ('")+mh->GetModeChar()+"'). Closing connection to avoid desync.");
1413 who = this->Instance->FindNick(usr);
1416 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1417 if (modectr >= (MAXMODES-1))
1419 /* theres a mode for this user. push them onto the mode queue, and flush it
1420 * if there are more than MAXMODES to go.
1422 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1424 /* We also always let u-lined clients win, no matter what the TS value */
1425 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1426 this->Instance->SendMode((const char**)mode_users,modectr,who);
1429 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1436 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1437 /* bouncy bouncy! */
1438 std::deque<std::string> params;
1439 /* modes are now being UNSET... */
1440 *mode_users[1] = '-';
1441 for (unsigned int x = 0; x < modectr; x++)
1445 params.push_back(ConvToStr(us->age));
1447 params.push_back(mode_users[x]);
1450 // tell everyone to bounce the modes. bad modes, bad!
1451 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1453 strcpy(mode_users[1],"+");
1459 /* there werent enough modes built up to flush it during FJOIN,
1460 * or, there are a number left over. flush them out.
1462 if ((modectr > 2) && (who) && (us))
1466 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1467 this->Instance->SendMode((const char**)mode_users,modectr,who);
1470 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1477 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1478 std::deque<std::string> params;
1479 *mode_users[1] = '-';
1480 for (unsigned int x = 0; x < modectr; x++)
1484 params.push_back(ConvToStr(us->age));
1486 params.push_back(mode_users[x]);
1488 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1494 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1496 if (params.size() >= 2)
1498 chanrec* c = this->Instance->FindChan(params[0]);
1501 time_t theirTS = atoi(params[1].c_str());
1502 time_t ourTS = c->age;
1503 if (ourTS >= theirTS)
1505 ServerInstance->Log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1510 DoOneToAllButSender(this->Instance->Config->ServerName,"SYNCTS",params,source);
1515 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1517 if (params.size() < 8)
1519 if (params.size() > 8)
1521 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1524 // NICK age nick host dhost ident +modes ip :gecos
1526 time_t age = atoi(params[0].c_str());
1528 /* This used to have a pretty craq'y loop doing the same thing,
1529 * now we just let the STL do the hard work (more efficiently)
1531 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1533 const char* tempnick = params[1].c_str();
1534 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1536 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1538 if (iter != this->Instance->clientlist.end())
1541 ServerInstance->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);
1542 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1546 userrec* _new = new userrec(this->Instance);
1547 this->Instance->clientlist[tempnick] = _new;
1548 _new->SetFd(FD_MAGIC_NUMBER);
1549 strlcpy(_new->nick, tempnick,NICKMAX-1);
1550 strlcpy(_new->host, params[2].c_str(),63);
1551 strlcpy(_new->dhost, params[3].c_str(),63);
1552 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1553 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1554 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1555 _new->registered = REG_ALL;
1558 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1559 _new->modes[(*v)-65] = 1;
1561 if (params[6].find_first_of(":") != std::string::npos)
1562 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1564 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1566 this->Instance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1568 params[7] = ":" + params[7];
1569 DoOneToAllButSender(source,"NICK",params,source);
1571 // Increment the Source Servers User Count..
1572 TreeServer* SourceServer = FindServer(source);
1575 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1576 SourceServer->AddUserCount();
1582 /* Send one or more FJOINs for a channel of users.
1583 * If the length of a single line is more than 480-NICKMAX
1584 * in length, it is split over multiple lines.
1586 void SendFJoins(TreeServer* Current, chanrec* c)
1588 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1590 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1592 size_t dlen, curlen;
1593 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1595 char* ptr = list + dlen;
1597 CUList *ulist = c->GetUsers();
1598 std::vector<userrec*> specific_halfop;
1599 std::vector<userrec*> specific_voice;
1600 std::string modes = "";
1601 std::string params = "";
1603 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1605 // The first parameter gets a : before it
1606 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1613 if (curlen > (480-NICKMAX))
1615 this->WriteLine(list);
1616 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1624 this->WriteLine(list);
1626 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1629 params.append(b->data).append(" ");
1631 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1634 /* Send G, Q, Z and E lines */
1635 void SendXLines(TreeServer* Current)
1638 std::string n = this->Instance->Config->ServerName;
1639 const char* sn = n.c_str();
1641 /* Yes, these arent too nice looking, but they get the job done */
1642 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1644 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);
1645 this->WriteLine(data);
1647 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1649 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);
1650 this->WriteLine(data);
1652 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1654 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);
1655 this->WriteLine(data);
1657 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1659 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);
1660 this->WriteLine(data);
1662 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1664 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);
1665 this->WriteLine(data);
1667 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1669 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);
1670 this->WriteLine(data);
1672 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1674 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);
1675 this->WriteLine(data);
1677 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1679 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);
1680 this->WriteLine(data);
1684 /* Send channel modes and topics */
1685 void SendChannelModes(TreeServer* Current)
1688 std::deque<std::string> list;
1690 std::string n = this->Instance->Config->ServerName;
1691 const char* sn = n.c_str();
1692 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1694 SendFJoins(Current, c->second);
1695 if (*c->second->topic)
1697 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1698 this->WriteLine(data);
1700 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1702 c->second->GetExtList(list);
1703 for (unsigned int j = 0; j < list.size(); j++)
1705 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1710 /* send all users and their oper state/modes */
1711 void SendUsers(TreeServer* Current)
1714 std::deque<std::string> list;
1716 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1718 if (u->second->registered == REG_ALL)
1720 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(),u->second->GetIPString(),u->second->fullname);
1721 this->WriteLine(data);
1722 if (*u->second->oper)
1724 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1726 if (*u->second->awaymsg)
1728 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1730 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1732 u->second->GetExtList(list);
1733 for (unsigned int j = 0; j < list.size(); j++)
1735 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1741 /* This function is called when we want to send a netburst to a local
1742 * server. There is a set order we must do this, because for example
1743 * users require their servers to exist, and channels require their
1744 * users to exist. You get the idea.
1746 void DoBurst(TreeServer* s)
1748 std::string burst = "BURST "+ConvToStr(time(NULL));
1749 std::string endburst = "ENDBURST";
1750 // Because by the end of the netburst, it could be gone!
1751 std::string name = s->GetName();
1752 this->Instance->WriteOpers("*** Bursting to \2"+name+"\2.");
1753 this->WriteLine(burst);
1754 /* send our version string */
1755 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1756 /* Send server tree */
1757 this->SendServers(TreeRoot,s,1);
1758 /* Send users and their oper status */
1760 /* Send everything else (channel modes, xlines etc) */
1761 this->SendChannelModes(s);
1762 this->SendXLines(s);
1763 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1764 this->WriteLine(endburst);
1765 this->Instance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1768 /* This function is called when we receive data from a remote
1769 * server. We buffer the data in a std::string (it doesnt stay
1770 * there for long), reading using InspSocket::Read() which can
1771 * read up to 16 kilobytes in one operation.
1773 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1774 * THE SOCKET OBJECT FOR US.
1776 virtual bool OnDataReady()
1778 char* data = this->Read();
1779 /* Check that the data read is a valid pointer and it has some content */
1782 this->in_buffer.append(data);
1783 /* While there is at least one new line in the buffer,
1784 * do something useful (we hope!) with it.
1786 while (in_buffer.find("\n") != std::string::npos)
1788 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1789 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1790 if (ret.find("\r") != std::string::npos)
1791 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1792 /* Process this one, abort if it
1793 * didnt return true.
1799 memset(result,0,1024);
1801 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1802 /* ERROR + CAPAB is still allowed unencryped */
1803 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1805 int nbytes = from64tobits(out, ret.c_str(), 1024);
1806 if ((nbytes > 0) && (nbytes < 1024))
1808 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1809 ctx_in->Decrypt(out, result, nbytes, 0);
1810 for (int t = 0; t < nbytes; t++)
1811 if (result[t] == '\7') result[t] = 0;
1816 if (!this->ProcessLine(ret))
1818 ServerInstance->Log(DEBUG,"ProcessLine says no!");
1824 /* EAGAIN returns an empty but non-NULL string, so this
1825 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1827 return (data && !*data);
1830 int WriteLine(std::string line)
1832 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
1836 char result64[10240];
1837 if (this->keylength)
1839 // pad it to the key length
1840 int n = this->keylength - (line.length() % this->keylength);
1843 ServerInstance->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);
1844 line.append(n,'\7');
1847 unsigned int ll = line.length();
1848 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1849 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1851 //int from64tobits(char *out, const char *in, int maxlen);
1853 return this->Write(line + "\r\n");
1856 /* Handle ERROR command */
1857 bool Error(std::deque<std::string> ¶ms)
1859 if (params.size() < 1)
1861 this->Instance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1862 /* we will return false to cause the socket to close. */
1866 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
1868 /* Get the reply to a STATS query if it matches this servername,
1869 * and send it back as a load of PUSH queries
1871 if (params.size() > 1)
1873 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
1875 /* It's for our server */
1876 string_list results;
1877 userrec* source = this->Instance->FindNick(prefix);
1880 std::deque<std::string> par;
1881 par.push_back(prefix);
1883 DoStats(this->Instance, *(params[0].c_str()), source, results);
1884 for (size_t i = 0; i < results.size(); i++)
1886 par[1] = "::" + results[i];
1887 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
1894 userrec* source = this->Instance->FindNick(prefix);
1896 DoOneToOne(prefix, "STATS", params, params[1]);
1903 /* Because the core won't let users or even SERVERS set +o,
1904 * we use the OPERTYPE command to do this.
1906 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1908 if (params.size() != 1)
1910 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1913 std::string opertype = params[0];
1914 userrec* u = this->Instance->FindNick(prefix);
1917 u->modes[UM_OPERATOR] = 1;
1918 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1919 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1924 /* Because Andy insists that services-compatible servers must
1925 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1927 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1929 if (params.size() < 3)
1932 userrec* u = this->Instance->FindNick(params[0]);
1936 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1939 std::deque<std::string> par;
1940 par.push_back(params[1]);
1941 /* This is not required as one is sent in OnUserPostNick below
1943 //DoOneToMany(u->nick,"NICK",par);
1944 if (!u->ForceNickChange(params[1].c_str()))
1946 userrec::QuitUser(this->Instance, u, "Nickname collision");
1949 u->age = atoi(params[2].c_str());
1955 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1957 if (params.size() < 2)
1960 userrec* u = this->Instance->FindNick(params[0]);
1964 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
1965 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1970 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1972 if (params.size() < 1)
1975 std::string servermask = params[0];
1977 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
1979 this->Instance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1980 this->Instance->RehashServer();
1981 ReadConfiguration(false);
1983 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1987 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1989 if (params.size() != 2)
1992 std::string nick = params[0];
1993 userrec* u = this->Instance->FindNick(prefix);
1994 userrec* who = this->Instance->FindNick(nick);
1998 /* Prepend kill source, if we don't have one */
1999 std::string sourceserv = prefix;
2002 sourceserv = u->server;
2004 if (*(params[1].c_str()) != '[')
2006 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2008 std::string reason = params[1];
2009 params[1] = ":" + params[1];
2010 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2011 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2012 userrec::QuitUser(this->Instance,who,reason);
2017 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2019 if (params.size() < 1)
2022 if (params.size() == 1)
2024 TreeServer* ServerSource = FindServer(prefix);
2027 ServerSource->SetPingFlag();
2032 std::string forwardto = params[1];
2033 if (forwardto == this->Instance->Config->ServerName)
2036 * this is a PONG for us
2037 * if the prefix is a user, check theyre local, and if they are,
2038 * dump the PONG reply back to their fd. If its a server, do nowt.
2039 * Services might want to send these s->s, but we dont need to yet.
2041 userrec* u = this->Instance->FindNick(prefix);
2045 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2050 // not for us, pass it on :)
2051 DoOneToOne(prefix,"PONG",params,forwardto);
2058 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2060 if (params.size() < 3)
2063 TreeServer* ServerSource = FindServer(prefix);
2067 if (params[0] == "*")
2069 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2071 else if (*(params[0].c_str()) == '#')
2073 chanrec* c = this->Instance->FindChan(params[0]);
2076 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2079 else if (*(params[0].c_str()) != '#')
2081 userrec* u = this->Instance->FindNick(params[0]);
2084 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2089 params[2] = ":" + params[2];
2090 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2094 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2096 if (params.size() < 1)
2099 TreeServer* ServerSource = FindServer(prefix);
2103 ServerSource->SetVersion(params[0]);
2105 params[0] = ":" + params[0];
2106 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2110 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2112 if (params.size() < 1)
2115 userrec* u = this->Instance->FindNick(prefix);
2119 u->ChangeDisplayedHost(params[0].c_str());
2120 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2125 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2127 if (params.size() < 6)
2130 bool propogate = false;
2132 switch (*(params[0].c_str()))
2135 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2136 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2139 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2140 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2143 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2144 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2147 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2148 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2151 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2154 /* Just in case... */
2155 this->Instance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2160 /* Send it on its way */
2163 if (atoi(params[4].c_str()))
2165 this->Instance->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());
2169 this->Instance->WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2171 params[5] = ":" + params[5];
2172 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2174 if (!this->bursting)
2176 ServerInstance->Log(DEBUG,"Applying lines...");
2177 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2182 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2184 if (params.size() < 1)
2187 userrec* u = this->Instance->FindNick(prefix);
2191 u->ChangeName(params[0].c_str());
2192 params[0] = ":" + params[0];
2193 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2198 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2200 if (params.size() < 1)
2203 ServerInstance->Log(DEBUG,"In IDLE command");
2204 userrec* u = this->Instance->FindNick(prefix);
2208 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2209 // an incoming request
2210 if (params.size() == 1)
2212 userrec* x = this->Instance->FindNick(params[0]);
2213 if ((x) && (IS_LOCAL(x)))
2215 userrec* x = this->Instance->FindNick(params[0]);
2216 ServerInstance->Log(DEBUG,"Got IDLE");
2217 char signon[MAXBUF];
2219 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2220 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2221 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2222 std::deque<std::string> par;
2223 par.push_back(prefix);
2224 par.push_back(signon);
2225 par.push_back(idle);
2226 // ours, we're done, pass it BACK
2227 DoOneToOne(params[0],"IDLE",par,u->server);
2231 // not ours pass it on
2232 DoOneToOne(prefix,"IDLE",params,x->server);
2235 else if (params.size() == 3)
2237 std::string who_did_the_whois = params[0];
2238 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2239 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2241 ServerInstance->Log(DEBUG,"Got final IDLE");
2242 // an incoming reply to a whois we sent out
2243 std::string nick_whoised = prefix;
2244 unsigned long signon = atoi(params[1].c_str());
2245 unsigned long idle = atoi(params[2].c_str());
2246 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2247 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2251 // not ours, pass it on
2252 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2259 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2261 if (params.size() < 2)
2264 userrec* u = this->Instance->FindNick(params[0]);
2271 u->Write(params[1]);
2275 // continue the raw onwards
2276 params[1] = ":" + params[1];
2277 DoOneToOne(prefix,"PUSH",params,u->server);
2282 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2284 // :source.server TIME remote.server sendernick
2285 // :remote.server TIME source.server sendernick TS
2286 if (params.size() == 2)
2288 // someone querying our time?
2289 if (this->Instance->Config->ServerName == params[0])
2291 userrec* u = this->Instance->FindNick(params[1]);
2295 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2296 params.push_back(curtime);
2298 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2303 // not us, pass it on
2304 userrec* u = this->Instance->FindNick(params[1]);
2306 DoOneToOne(prefix,"TIME",params,params[0]);
2309 else if (params.size() == 3)
2311 // a response to a previous TIME
2312 userrec* u = this->Instance->FindNick(params[1]);
2313 if ((u) && (IS_LOCAL(u)))
2315 time_t rawtime = atol(params[2].c_str());
2316 struct tm * timeinfo;
2317 timeinfo = localtime(&rawtime);
2319 snprintf(tms,26,"%s",asctime(timeinfo));
2321 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2326 DoOneToOne(prefix,"TIME",params,u->server);
2332 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2334 if (params.size() < 1)
2337 if (params.size() == 1)
2339 std::string stufftobounce = params[0];
2340 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2345 std::string forwardto = params[1];
2346 if (forwardto == this->Instance->Config->ServerName)
2348 // this is a ping for us, send back PONG to the requesting server
2349 params[1] = params[0];
2350 params[0] = forwardto;
2351 DoOneToOne(forwardto,"PONG",params,params[1]);
2355 // not for us, pass it on :)
2356 DoOneToOne(prefix,"PING",params,forwardto);
2362 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2364 if (params.size() < 4)
2367 std::string servername = params[0];
2368 std::string password = params[1];
2369 // hopcount is not used for a remote server, we calculate this ourselves
2370 std::string description = params[3];
2371 TreeServer* ParentOfThis = FindServer(prefix);
2375 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2378 TreeServer* CheckDupe = FindServer(servername);
2381 this->WriteLine("ERROR :Server "+servername+" already exists!");
2382 this->Instance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2385 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2386 ParentOfThis->AddChild(Node);
2387 params[3] = ":" + params[3];
2388 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2389 this->Instance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2393 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2395 if (params.size() < 4)
2398 irc::string servername = params[0].c_str();
2399 std::string sname = params[0];
2400 std::string password = params[1];
2401 int hops = atoi(params[2].c_str());
2405 this->WriteLine("ERROR :Server too far away for authentication");
2406 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2409 std::string description = params[3];
2410 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2412 if ((x->Name == servername) && (x->RecvPass == password))
2414 TreeServer* CheckDupe = FindServer(sname);
2417 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2418 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2421 // Begin the sync here. this kickstarts the
2422 // other side, waiting in WAIT_AUTH_2 state,
2423 // into starting their burst, as it shows
2424 // that we're happy.
2425 this->LinkState = CONNECTED;
2426 // we should add the details of this server now
2427 // to the servers tree, as a child of the root
2429 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2430 TreeRoot->AddChild(Node);
2431 params[3] = ":" + params[3];
2432 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2433 this->bursting = true;
2434 this->DoBurst(Node);
2438 this->WriteLine("ERROR :Invalid credentials");
2439 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2443 bool Inbound_Server(std::deque<std::string> ¶ms)
2445 if (params.size() < 4)
2448 irc::string servername = params[0].c_str();
2449 std::string sname = params[0];
2450 std::string password = params[1];
2451 int hops = atoi(params[2].c_str());
2455 this->WriteLine("ERROR :Server too far away for authentication");
2456 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2459 std::string description = params[3];
2460 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2462 if ((x->Name == servername) && (x->RecvPass == password))
2464 TreeServer* CheckDupe = FindServer(sname);
2467 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2468 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2471 /* If the config says this link is encrypted, but the remote side
2472 * hasnt bothered to send the AES command before SERVER, then we
2473 * boot them off as we MUST have this connection encrypted.
2475 if ((x->EncryptionKey != "") && (!this->ctx_in))
2477 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2478 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2481 this->Instance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2482 this->InboundServerName = sname;
2483 this->InboundDescription = description;
2484 // this is good. Send our details: Our server name and description and hopcount of 0,
2485 // along with the sendpass from this block.
2486 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2487 // move to the next state, we are now waiting for THEM.
2488 this->LinkState = WAIT_AUTH_2;
2492 this->WriteLine("ERROR :Invalid credentials");
2493 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2497 void Split(std::string line, std::deque<std::string> &n)
2500 irc::tokenstream tokens(line);
2502 while ((param = tokens.GetToken()) != "")
2507 bool ProcessLine(std::string line)
2509 std::deque<std::string> params;
2510 irc::string command;
2516 line = line.substr(0, line.find_first_of("\r\n"));
2518 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2520 this->Split(line.c_str(),params);
2522 if ((params[0][0] == ':') && (params.size() > 1))
2524 prefix = params[0].substr(1);
2528 command = params[0].c_str();
2531 if ((!this->ctx_in) && (command == "AES"))
2533 std::string sserv = params[0];
2534 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2536 if ((x->EncryptionKey != "") && (x->Name == sserv))
2538 this->InitAES(x->EncryptionKey,sserv);
2544 else if ((this->ctx_in) && (command == "AES"))
2546 this->Instance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2549 switch (this->LinkState)
2554 // Waiting for SERVER command from remote server. Server initiating
2555 // the connection sends the first SERVER command, listening server
2556 // replies with theirs if its happy, then if the initiator is happy,
2557 // it starts to send its net sync, which starts the merge, otherwise
2558 // it sends an ERROR.
2559 if (command == "PASS")
2561 /* Silently ignored */
2563 else if (command == "SERVER")
2565 return this->Inbound_Server(params);
2567 else if (command == "ERROR")
2569 return this->Error(params);
2571 else if (command == "USER")
2573 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2576 else if (command == "CAPAB")
2578 return this->Capab(params);
2580 else if ((command == "U") || (command == "S"))
2582 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2587 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2592 // Waiting for start of other side's netmerge to say they liked our
2594 if (command == "SERVER")
2596 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2600 else if ((command == "U") || (command == "S"))
2602 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2605 else if (command == "BURST")
2609 /* If a time stamp is provided, try and check syncronization */
2610 time_t THEM = atoi(params[0].c_str());
2611 long delta = THEM-time(NULL);
2612 if ((delta < -600) || (delta > 600))
2614 this->Instance->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));
2615 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2618 else if ((delta < -60) || (delta > 60))
2620 this->Instance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2623 this->LinkState = CONNECTED;
2624 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2625 TreeRoot->AddChild(Node);
2627 params.push_back(InboundServerName);
2628 params.push_back("*");
2629 params.push_back("1");
2630 params.push_back(":"+InboundDescription);
2631 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2632 this->bursting = true;
2633 this->DoBurst(Node);
2635 else if (command == "ERROR")
2637 return this->Error(params);
2639 else if (command == "CAPAB")
2641 return this->Capab(params);
2646 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2650 if (command == "SERVER")
2652 // another server we connected to, which was in WAIT_AUTH_1 state,
2653 // has just sent us their credentials. If we get this far, theyre
2654 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2655 // if we're happy with this, we should send our netburst which
2656 // kickstarts the merge.
2657 return this->Outbound_Reply_Server(params);
2659 else if (command == "ERROR")
2661 return this->Error(params);
2665 // This is the 'authenticated' state, when all passwords
2666 // have been exchanged and anything past this point is taken
2671 std::string direction = prefix;
2672 userrec* t = this->Instance->FindNick(prefix);
2675 direction = t->server;
2677 TreeServer* route_back_again = BestRouteTo(direction);
2678 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2680 if (route_back_again)
2681 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2686 * When there is activity on the socket, reset the ping counter so
2687 * that we're not wasting bandwidth pinging an active server.
2689 route_back_again->SetNextPingTime(time(NULL) + 120);
2690 route_back_again->SetPingFlag();
2693 if (command == "SVSMODE")
2695 /* Services expects us to implement
2696 * SVSMODE. In inspircd its the same as
2701 std::string target = "";
2702 /* Yes, know, this is a mess. Its reasonably fast though as we're
2703 * working with std::string here.
2705 if ((command == "NICK") && (params.size() > 1))
2707 return this->IntroduceClient(prefix,params);
2709 else if (command == "FJOIN")
2711 return this->ForceJoin(prefix,params);
2713 else if (command == "STATS")
2715 return this->Stats(prefix, params);
2717 else if (command == "SERVER")
2719 return this->RemoteServer(prefix,params);
2721 else if (command == "ERROR")
2723 return this->Error(params);
2725 else if (command == "OPERTYPE")
2727 return this->OperType(prefix,params);
2729 else if (command == "FMODE")
2731 return this->ForceMode(prefix,params);
2733 else if (command == "KILL")
2735 return this->RemoteKill(prefix,params);
2737 else if (command == "FTOPIC")
2739 return this->ForceTopic(prefix,params);
2741 else if (command == "REHASH")
2743 return this->RemoteRehash(prefix,params);
2745 else if (command == "METADATA")
2747 return this->MetaData(prefix,params);
2749 else if (command == "PING")
2752 * We just got a ping from a server that's bursting.
2753 * This can't be right, so set them to not bursting, and
2754 * apply their lines.
2758 this->bursting = false;
2759 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2763 prefix = this->GetName();
2765 return this->LocalPing(prefix,params);
2767 else if (command == "PONG")
2770 * We just got a pong from a server that's bursting.
2771 * This can't be right, so set them to not bursting, and
2772 * apply their lines.
2776 this->bursting = false;
2777 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2781 prefix = this->GetName();
2783 return this->LocalPong(prefix,params);
2785 else if (command == "VERSION")
2787 return this->ServerVersion(prefix,params);
2789 else if (command == "FHOST")
2791 return this->ChangeHost(prefix,params);
2793 else if (command == "FNAME")
2795 return this->ChangeName(prefix,params);
2797 else if (command == "ADDLINE")
2799 return this->AddLine(prefix,params);
2801 else if (command == "SVSNICK")
2805 prefix = this->GetName();
2807 return this->ForceNick(prefix,params);
2809 else if (command == "IDLE")
2811 return this->Whois(prefix,params);
2813 else if (command == "PUSH")
2815 return this->Push(prefix,params);
2817 else if (command == "TIME")
2819 return this->Time(prefix,params);
2821 else if ((command == "KICK") && (IsServer(prefix)))
2823 std::string sourceserv = this->myhost;
2824 if (params.size() == 3)
2826 userrec* user = this->Instance->FindNick(params[1]);
2827 chanrec* chan = this->Instance->FindChan(params[0]);
2830 if (!chan->ServerKickUser(user, params[2].c_str(), false))
2831 /* Yikes, the channels gone! */
2835 if (this->InboundServerName != "")
2837 sourceserv = this->InboundServerName;
2839 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2841 else if (command == "SVSJOIN")
2845 prefix = this->GetName();
2847 return this->ServiceJoin(prefix,params);
2849 else if (command == "SQUIT")
2851 if (params.size() == 2)
2853 this->Squit(FindServer(params[0]),params[1]);
2857 else if (command == "ENDBURST")
2859 this->bursting = false;
2860 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2861 std::string sourceserv = this->myhost;
2862 if (this->InboundServerName != "")
2864 sourceserv = this->InboundServerName;
2866 this->Instance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2871 // not a special inter-server command.
2872 // Emulate the actual user doing the command,
2873 // this saves us having a huge ugly parser.
2874 userrec* who = this->Instance->FindNick(prefix);
2875 std::string sourceserv = this->myhost;
2876 if (this->InboundServerName != "")
2878 sourceserv = this->InboundServerName;
2882 if ((command == "NICK") && (params.size() > 0))
2884 /* On nick messages, check that the nick doesnt
2885 * already exist here. If it does, kill their copy,
2888 userrec* x = this->Instance->FindNick(params[0]);
2889 if ((x) && (x != who))
2891 std::deque<std::string> p;
2892 p.push_back(params[0]);
2893 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2894 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2896 p.push_back(prefix);
2897 p.push_back("Nickname collision");
2898 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2899 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2900 userrec* y = this->Instance->FindNick(prefix);
2903 userrec::QuitUser(this->Instance,y,"Nickname collision");
2905 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2909 target = who->server;
2910 const char* strparams[127];
2911 for (unsigned int q = 0; q < params.size(); q++)
2913 strparams[q] = params[q].c_str();
2915 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2917 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2923 // its not a user. Its either a server, or somethings screwed up.
2924 if (IsServer(prefix))
2926 target = this->Instance->Config->ServerName;
2930 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2934 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2943 virtual std::string GetName()
2945 std::string sourceserv = this->myhost;
2946 if (this->InboundServerName != "")
2948 sourceserv = this->InboundServerName;
2953 virtual void OnTimeout()
2955 if (this->LinkState == CONNECTING)
2957 this->Instance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2961 virtual void OnClose()
2963 // Connection closed.
2964 // If the connection is fully up (state CONNECTED)
2965 // then propogate a netsplit to all peers.
2966 std::string quitserver = this->myhost;
2967 if (this->InboundServerName != "")
2969 quitserver = this->InboundServerName;
2971 TreeServer* s = FindServer(quitserver);
2974 Squit(s,"Remote host closed the connection");
2976 this->Instance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2979 virtual int OnIncomingConnection(int newsock, char* ip)
2981 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2982 * or discovering if this port is the server port, we don't allow connections from any
2983 * IPs for which we don't have a link block.
2987 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
2990 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
2991 if (MatchCIDR(ip, (*i).c_str()))
2996 this->Instance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3001 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3002 this->Instance->AddSocket(s);
3007 /** This class is used to resolve server hostnames during /connect and autoconnect.
3008 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3009 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3010 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3011 * will have an IP address which we can then use to continue our connection.
3013 class ServernameResolver : public Resolver
3016 /** A copy of the Link tag info for what we're connecting to.
3017 * We take a copy, rather than using a pointer, just in case the
3018 * admin takes the tag away and rehashes while the domain is resolving.
3022 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3024 /* Nothing in here, folks */
3027 void OnLookupComplete(const std::string &result)
3029 /* Initiate the connection, now that we have an IP to use.
3030 * Passing a hostname directly to InspSocket causes it to
3031 * just bail and set its FD to -1.
3033 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3034 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3036 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3037 if (newsocket->GetFd() > -1)
3040 ServerInstance->AddSocket(newsocket);
3044 /* Something barfed, show the opers */
3045 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3051 void OnError(ResolverError e, const std::string &errormessage)
3054 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3058 class SecurityIPResolver : public Resolver
3063 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3067 void OnLookupComplete(const std::string &result)
3069 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3070 ValidIPs.push_back(result);
3073 void OnError(ResolverError e, const std::string &errormessage)
3075 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3079 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3081 for (unsigned int c = 0; c < list.size(); c++)
3083 if (list[c] == server)
3088 list.push_back(server);
3091 // returns a list of DIRECT servernames for a specific channel
3092 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3094 CUList *ulist = c->GetUsers();
3095 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3097 if (i->second->GetFd() < 0)
3099 TreeServer* best = BestRouteTo(i->second->server);
3101 AddThisServer(best,list);
3107 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3109 TreeServer* omitroute = BestRouteTo(omit);
3110 if ((command == "NOTICE") || (command == "PRIVMSG"))
3112 if (params.size() >= 2)
3115 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3117 params[0] = params[0].substr(1, params[0].length()-1);
3119 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3121 // special routing for private messages/notices
3122 userrec* d = ServerInstance->FindNick(params[0]);
3125 std::deque<std::string> par;
3126 par.push_back(params[0]);
3127 par.push_back(":"+params[1]);
3128 DoOneToOne(prefix,command.c_str(),par,d->server);
3132 else if (*(params[0].c_str()) == '$')
3134 std::deque<std::string> par;
3135 par.push_back(params[0]);
3136 par.push_back(":"+params[1]);
3137 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3142 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3143 chanrec* c = ServerInstance->FindChan(params[0]);
3146 std::deque<TreeServer*> list;
3147 GetListOfServersForChannel(c,list);
3148 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3149 unsigned int lsize = list.size();
3150 for (unsigned int i = 0; i < lsize; i++)
3152 TreeSocket* Sock = list[i]->GetSocket();
3153 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3155 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3156 Sock->WriteLine(data);
3164 unsigned int items = TreeRoot->ChildCount();
3165 for (unsigned int x = 0; x < items; x++)
3167 TreeServer* Route = TreeRoot->GetChild(x);
3168 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3170 TreeSocket* Sock = Route->GetSocket();
3171 Sock->WriteLine(data);
3177 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3179 TreeServer* omitroute = BestRouteTo(omit);
3180 std::string FullLine = ":" + prefix + " " + command;
3181 unsigned int words = params.size();
3182 for (unsigned int x = 0; x < words; x++)
3184 FullLine = FullLine + " " + params[x];
3186 unsigned int items = TreeRoot->ChildCount();
3187 for (unsigned int x = 0; x < items; x++)
3189 TreeServer* Route = TreeRoot->GetChild(x);
3190 // Send the line IF:
3191 // The route has a socket (its a direct connection)
3192 // The route isnt the one to be omitted
3193 // The route isnt the path to the one to be omitted
3194 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3196 TreeSocket* Sock = Route->GetSocket();
3197 Sock->WriteLine(FullLine);
3203 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3205 std::string FullLine = ":" + prefix + " " + command;
3206 unsigned int words = params.size();
3207 for (unsigned int x = 0; x < words; x++)
3209 FullLine = FullLine + " " + params[x];
3211 unsigned int items = TreeRoot->ChildCount();
3212 for (unsigned int x = 0; x < items; x++)
3214 TreeServer* Route = TreeRoot->GetChild(x);
3215 if (Route->GetSocket())
3217 TreeSocket* Sock = Route->GetSocket();
3218 Sock->WriteLine(FullLine);
3224 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3226 TreeServer* Route = BestRouteTo(target);
3229 std::string FullLine = ":" + prefix + " " + command;
3230 unsigned int words = params.size();
3231 for (unsigned int x = 0; x < words; x++)
3233 FullLine = FullLine + " " + params[x];
3235 if (Route->GetSocket())
3237 TreeSocket* Sock = Route->GetSocket();
3238 Sock->WriteLine(FullLine);
3248 std::vector<TreeSocket*> Bindings;
3250 void ReadConfiguration(bool rebind)
3252 Conf = new ConfigReader(ServerInstance);
3255 for (int j =0; j < Conf->Enumerate("bind"); j++)
3257 std::string Type = Conf->ReadValue("bind","type",j);
3258 std::string IP = Conf->ReadValue("bind","address",j);
3259 long Port = Conf->ReadInteger("bind","port",j,true);
3260 if (Type == "servers")
3266 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3267 if (listener->GetState() == I_LISTENING)
3269 ServerInstance->AddSocket(listener);
3270 Bindings.push_back(listener);
3274 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3281 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3282 HideULines = Conf->ReadFlag("options","hideulines",0);
3285 for (int j =0; j < Conf->Enumerate("link"); j++)
3288 std::string Allow = Conf->ReadValue("link","allowmask",j);
3289 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3290 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3291 L.Port = Conf->ReadInteger("link","port",j,true);
3292 L.SendPass = Conf->ReadValue("link","sendpass",j);
3293 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3294 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3295 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3296 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3297 L.NextConnectTime = time(NULL) + L.AutoConnect;
3298 /* Bugfix by brain, do not allow people to enter bad configurations */
3299 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3301 ValidIPs.push_back(L.IPAddr);
3304 ValidIPs.push_back(Allow);
3306 /* Needs resolving */
3308 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3312 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3313 ServerInstance->AddResolver(sr);
3315 catch (ModuleException& e)
3317 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3321 LinkBlocks.push_back(L);
3322 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3328 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3330 else if (L.RecvPass == "")
3332 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3334 else if (L.SendPass == "")
3336 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3338 else if (L.Name == "")
3340 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3344 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3352 class ModuleSpanningTree : public Module
3354 std::vector<TreeSocket*> Bindings;
3357 unsigned int max_local;
3358 unsigned int max_global;
3359 cmd_rconnect* command_rconnect;
3363 ModuleSpanningTree(InspIRCd* Me)
3364 : Module::Module(Me), max_local(0), max_global(0)
3369 ::ServerInstance = Me;
3371 // Create the root of the tree
3372 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3374 ReadConfiguration(true);
3376 command_rconnect = new cmd_rconnect(ServerInstance, this);
3377 ServerInstance->AddCommand(command_rconnect);
3380 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3382 std::string Parent = TreeRoot->GetName();
3383 if (Current->GetParent())
3385 Parent = Current->GetParent()->GetName();
3387 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3389 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3393 ShowLinks(Current->GetChild(q),user,hops+1);
3398 ShowLinks(Current->GetChild(q),user,hops+1);
3401 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3402 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3404 user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? ServerInstance->Config->ServerName : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
3407 int CountLocalServs()
3409 return TreeRoot->ChildCount();
3414 return serverlist.size();
3417 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3419 ShowLinks(TreeRoot,user,0);
3420 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3424 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3426 unsigned int n_users = ServerInstance->UserCount();
3428 /* Only update these when someone wants to see them, more efficient */
3429 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3430 max_local = ServerInstance->LocalUserCount();
3431 if (n_users > max_global)
3432 max_global = n_users;
3434 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3435 if (ServerInstance->OperCount())
3436 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3437 if (ServerInstance->UnregisteredUserCount())
3438 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3439 if (ServerInstance->ChannelCount())
3440 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3441 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3442 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3443 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3447 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3449 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3453 for (int t = 0; t < depth; t++)
3455 matrix[line][t] = ' ';
3458 // For Aligning, we need to work out exactly how deep this thing is, and produce
3459 // a 'Spacer' String to compensate.
3462 memset(spacer,' ',40);
3463 if ((40 - Current->GetName().length() - depth) > 1) {
3464 spacer[40 - Current->GetName().length() - depth] = '\0';
3473 if (ServerInstance->clientlist.size() == 0) {
3474 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3479 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3481 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3482 totusers += Current->GetUserCount();
3484 strlcpy(&matrix[line][depth],text,80);
3486 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3488 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3492 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3497 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3503 int HandleStats(const char** parameters, int pcnt, userrec* user)
3507 /* Remote STATS, the server is within the 2nd parameter */
3508 std::deque<std::string> params;
3509 params.push_back(parameters[0]);
3510 params.push_back(parameters[1]);
3511 /* Send it out remotely, generate no reply yet */
3512 TreeServer* s = FindServerMask(parameters[1]);
3515 params[1] = s->GetName();
3516 DoOneToOne(user->nick, "STATS", params, s->GetName());
3520 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3527 // Ok, prepare to be confused.
3528 // After much mulling over how to approach this, it struck me that
3529 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3530 // keeping track of a ton of ascii characters, and line by line
3531 // under recursion working out where to place them using multiplications
3532 // and divisons, we instead render the map onto a backplane of characters
3533 // (a character matrix), then draw the branches as a series of "L" shapes
3534 // from the nodes. This is not only friendlier on CPU it uses less stack.
3536 void HandleMap(const char** parameters, int pcnt, userrec* user)
3538 // This array represents a virtual screen which we will
3539 // "scratch" draw to, as the console device of an irc
3540 // client does not provide for a proper terminal.
3542 float totservers = 0;
3543 char matrix[128][80];
3544 for (unsigned int t = 0; t < 128; t++)
3546 matrix[t][0] = '\0';
3549 // The only recursive bit is called here.
3550 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3551 // Process each line one by one. The algorithm has a limit of
3552 // 128 servers (which is far more than a spanning tree should have
3553 // anyway, so we're ok). This limit can be raised simply by making
3554 // the character matrix deeper, 128 rows taking 10k of memory.
3555 for (int l = 1; l < line; l++)
3557 // scan across the line looking for the start of the
3558 // servername (the recursive part of the algorithm has placed
3559 // the servers at indented positions depending on what they
3561 int first_nonspace = 0;
3562 while (matrix[l][first_nonspace] == ' ')
3567 // Draw the `- (corner) section: this may be overwritten by
3568 // another L shape passing along the same vertical pane, becoming
3569 // a |- (branch) section instead.
3570 matrix[l][first_nonspace] = '-';
3571 matrix[l][first_nonspace-1] = '`';
3573 // Draw upwards until we hit the parent server, causing possibly
3574 // other corners (`-) to become branches (|-)
3575 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3577 matrix[l2][first_nonspace-1] = '|';
3581 // dump the whole lot to the user. This is the easy bit, honest.
3582 for (int t = 0; t < line; t++)
3584 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3586 float avg_users = totusers / totservers;
3587 user->WriteServ("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);
3588 user->WriteServ("007 %s :End of /MAP",user->nick);
3592 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3594 TreeServer* s = FindServerMask(parameters[0]);
3599 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3602 TreeSocket* sock = s->GetSocket();
3605 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3606 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3607 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3608 ServerInstance->RemoveSocket(sock);
3612 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3617 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3622 int HandleTime(const char** parameters, int pcnt, userrec* user)
3624 if ((IS_LOCAL(user)) && (pcnt))
3626 TreeServer* found = FindServerMask(parameters[0]);
3629 // we dont' override for local server
3630 if (found == TreeRoot)
3633 std::deque<std::string> params;
3634 params.push_back(found->GetName());
3635 params.push_back(user->nick);
3636 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3640 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3646 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3648 if ((IS_LOCAL(user)) && (pcnt > 1))
3650 userrec* remote = ServerInstance->FindNick(parameters[1]);
3651 if ((remote) && (remote->GetFd() < 0))
3653 std::deque<std::string> params;
3654 params.push_back(parameters[1]);
3655 DoOneToOne(user->nick,"IDLE",params,remote->server);
3660 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3661 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3668 void DoPingChecks(time_t curtime)
3670 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3672 TreeServer* serv = TreeRoot->GetChild(j);
3673 TreeSocket* sock = serv->GetSocket();
3676 if (curtime >= serv->NextPingTime())
3678 if (serv->AnsweredLastPing())
3680 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3681 serv->SetNextPingTime(curtime + 120);
3685 // they didnt answer, boot them
3686 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3687 sock->Squit(serv,"Ping timeout");
3688 ServerInstance->RemoveSocket(sock);
3696 void AutoConnectServers(time_t curtime)
3698 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3700 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3702 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3703 x->NextConnectTime = curtime + x->AutoConnect;
3704 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3707 // an autoconnected server is not connected. Check if its time to connect it
3708 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3712 /* Do we already have an IP? If so, no need to resolve it. */
3713 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3715 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3716 if (newsocket->GetFd() > -1)
3718 ServerInstance->AddSocket(newsocket);
3722 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3730 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3731 ServerInstance->AddResolver(snr);
3733 catch (ModuleException& e)
3735 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3744 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3746 // we've already checked if pcnt > 0, so this is safe
3747 TreeServer* found = FindServerMask(parameters[0]);
3750 std::string Version = found->GetVersion();
3751 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3752 if (found == TreeRoot)
3754 std::stringstream out(ServerInstance->Config->data005);
3755 std::string token = "";
3756 std::string line5 = "";
3757 int token_counter = 0;
3762 line5 = line5 + token + " ";
3765 if ((token_counter >= 13) || (out.eof() == true))
3767 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3776 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3781 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3783 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3785 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
3787 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3790 user->WriteServ("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);
3793 /* Do we already have an IP? If so, no need to resolve it. */
3794 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3796 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3797 if (newsocket->GetFd() > -1)
3799 ServerInstance->AddSocket(newsocket);
3803 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3811 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
3812 ServerInstance->AddResolver(snr);
3814 catch (ModuleException& e)
3816 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3823 user->WriteServ("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());
3828 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3832 virtual int OnStats(char statschar, userrec* user, string_list &results)
3834 if (statschar == 'c')
3836 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3838 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" C *@"+(LinkBlocks[i].HiddenFromStats ? "<hidden>" : LinkBlocks[i].IPAddr)+" * "+LinkBlocks[i].Name.c_str()+" "+ConvToStr(LinkBlocks[i].Port)+" "+(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-')+(LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
3839 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
3841 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
3842 ServerInstance->WriteOpers("*** Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
3848 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3850 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3854 if (command == "CONNECT")
3856 return this->HandleConnect(parameters,pcnt,user);
3858 else if (command == "STATS")
3860 return this->HandleStats(parameters,pcnt,user);
3862 else if (command == "SQUIT")
3864 return this->HandleSquit(parameters,pcnt,user);
3866 else if (command == "MAP")
3868 this->HandleMap(parameters,pcnt,user);
3871 else if ((command == "TIME") && (pcnt > 0))
3873 return this->HandleTime(parameters,pcnt,user);
3875 else if (command == "LUSERS")
3877 this->HandleLusers(parameters,pcnt,user);
3880 else if (command == "LINKS")
3882 this->HandleLinks(parameters,pcnt,user);
3885 else if (command == "WHOIS")
3890 return this->HandleRemoteWhois(parameters,pcnt,user);
3893 else if ((command == "VERSION") && (pcnt > 0))
3895 this->HandleVersion(parameters,pcnt,user);
3898 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
3900 // this bit of code cleverly routes all module commands
3901 // to all remote severs *automatically* so that modules
3902 // can just handle commands locally, without having
3903 // to have any special provision in place for remote
3904 // commands and linking protocols.
3905 std::deque<std::string> params;
3907 for (int j = 0; j < pcnt; j++)
3909 if (strchr(parameters[j],' '))
3911 params.push_back(":" + std::string(parameters[j]));
3915 params.push_back(std::string(parameters[j]));
3918 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
3919 DoOneToMany(user->nick,command,params);
3924 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3926 TreeServer* s = FindServer(servername);
3929 description = s->GetDesc();
3933 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3935 if (IS_LOCAL(source))
3937 std::deque<std::string> params;
3938 params.push_back(dest->nick);
3939 params.push_back(channel->name);
3940 DoOneToMany(source->nick,"INVITE",params);
3944 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3946 std::deque<std::string> params;
3947 params.push_back(chan->name);
3948 params.push_back(":"+topic);
3949 DoOneToMany(user->nick,"TOPIC",params);
3952 virtual void OnWallops(userrec* user, const std::string &text)
3956 std::deque<std::string> params;
3957 params.push_back(":"+text);
3958 DoOneToMany(user->nick,"WALLOPS",params);
3962 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3964 if (target_type == TYPE_USER)
3966 userrec* d = (userrec*)dest;
3967 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
3969 std::deque<std::string> params;
3971 params.push_back(d->nick);
3972 params.push_back(":"+text);
3973 DoOneToOne(user->nick,"NOTICE",params,d->server);
3976 else if (target_type == TYPE_CHANNEL)
3980 chanrec *c = (chanrec*)dest;
3981 std::string cname = c->name;
3983 cname = status + cname;
3984 std::deque<TreeServer*> list;
3985 GetListOfServersForChannel(c,list);
3986 unsigned int ucount = list.size();
3987 for (unsigned int i = 0; i < ucount; i++)
3989 TreeSocket* Sock = list[i]->GetSocket();
3991 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
3995 else if (target_type == TYPE_SERVER)
3999 char* target = (char*)dest;
4000 std::deque<std::string> par;
4001 par.push_back(target);
4002 par.push_back(":"+text);
4003 DoOneToMany(user->nick,"NOTICE",par);
4008 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4010 if (target_type == TYPE_USER)
4012 // route private messages which are targetted at clients only to the server
4013 // which needs to receive them
4014 userrec* d = (userrec*)dest;
4015 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4017 std::deque<std::string> params;
4019 params.push_back(d->nick);
4020 params.push_back(":"+text);
4021 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4024 else if (target_type == TYPE_CHANNEL)
4028 chanrec *c = (chanrec*)dest;
4029 std::string cname = c->name;
4031 cname = status + cname;
4032 std::deque<TreeServer*> list;
4033 GetListOfServersForChannel(c,list);
4034 unsigned int ucount = list.size();
4035 for (unsigned int i = 0; i < ucount; i++)
4037 TreeSocket* Sock = list[i]->GetSocket();
4039 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4043 else if (target_type == TYPE_SERVER)
4047 char* target = (char*)dest;
4048 std::deque<std::string> par;
4049 par.push_back(target);
4050 par.push_back(":"+text);
4051 DoOneToMany(user->nick,"PRIVMSG",par);
4056 virtual void OnBackgroundTimer(time_t curtime)
4058 AutoConnectServers(curtime);
4059 DoPingChecks(curtime);
4062 virtual void OnUserJoin(userrec* user, chanrec* channel)
4064 // Only do this for local users
4067 std::deque<std::string> params;
4069 params.push_back(channel->name);
4071 if (channel->GetUserCounter() > 1)
4073 // not the first in the channel
4074 DoOneToMany(user->nick,"JOIN",params);
4078 // first in the channel, set up their permissions
4079 // and the channel TS with FJOIN.
4081 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4083 params.push_back(channel->name);
4084 params.push_back(ts);
4085 params.push_back("@,"+std::string(user->nick));
4086 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4091 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4093 // only occurs for local clients
4094 if (user->registered != REG_ALL)
4096 std::deque<std::string> params;
4097 params.push_back(newhost);
4098 DoOneToMany(user->nick,"FHOST",params);
4101 virtual void OnChangeName(userrec* user, const std::string &gecos)
4103 // only occurs for local clients
4104 if (user->registered != REG_ALL)
4106 std::deque<std::string> params;
4107 params.push_back(gecos);
4108 DoOneToMany(user->nick,"FNAME",params);
4111 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4115 std::deque<std::string> params;
4116 params.push_back(channel->name);
4117 if (partmessage != "")
4118 params.push_back(":"+partmessage);
4119 DoOneToMany(user->nick,"PART",params);
4123 virtual void OnUserConnect(userrec* user)
4125 char agestr[MAXBUF];
4128 std::deque<std::string> params;
4129 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4130 params.push_back(agestr);
4131 params.push_back(user->nick);
4132 params.push_back(user->host);
4133 params.push_back(user->dhost);
4134 params.push_back(user->ident);
4135 params.push_back("+"+std::string(user->FormatModes()));
4136 params.push_back(user->GetIPString());
4137 params.push_back(":"+std::string(user->fullname));
4138 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4140 // User is Local, change needs to be reflected!
4141 TreeServer* SourceServer = FindServer(user->server);
4144 SourceServer->AddUserCount();
4150 virtual void OnUserQuit(userrec* user, const std::string &reason)
4152 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4154 std::deque<std::string> params;
4155 params.push_back(":"+reason);
4156 DoOneToMany(user->nick,"QUIT",params);
4158 // Regardless, We need to modify the user Counts..
4159 TreeServer* SourceServer = FindServer(user->server);
4162 SourceServer->DelUserCount();
4167 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4171 std::deque<std::string> params;
4172 params.push_back(user->nick);
4173 DoOneToMany(oldnick,"NICK",params);
4177 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4179 if ((source) && (IS_LOCAL(source)))
4181 std::deque<std::string> params;
4182 params.push_back(chan->name);
4183 params.push_back(user->nick);
4184 params.push_back(":"+reason);
4185 DoOneToMany(source->nick,"KICK",params);
4189 std::deque<std::string> params;
4190 params.push_back(chan->name);
4191 params.push_back(user->nick);
4192 params.push_back(":"+reason);
4193 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4197 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4199 std::deque<std::string> params;
4200 params.push_back(dest->nick);
4201 params.push_back(":"+reason);
4202 DoOneToMany(source->nick,"KILL",params);
4205 virtual void OnRehash(const std::string ¶meter)
4207 if (parameter != "")
4209 std::deque<std::string> params;
4210 params.push_back(parameter);
4211 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4213 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4215 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4216 ServerInstance->RehashServer();
4219 ReadConfiguration(false);
4222 // note: the protocol does not allow direct umode +o except
4223 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4225 virtual void OnOper(userrec* user, const std::string &opertype)
4229 std::deque<std::string> params;
4230 params.push_back(opertype);
4231 DoOneToMany(user->nick,"OPERTYPE",params);
4235 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4237 if (IS_LOCAL(source))
4240 snprintf(type,8,"%cLINE",linetype);
4241 std::string stype = type;
4244 char sduration[MAXBUF];
4245 snprintf(sduration,MAXBUF,"%ld",duration);
4246 std::deque<std::string> params;
4247 params.push_back(host);
4248 params.push_back(sduration);
4249 params.push_back(":"+reason);
4250 DoOneToMany(source->nick,stype,params);
4254 std::deque<std::string> params;
4255 params.push_back(host);
4256 DoOneToMany(source->nick,stype,params);
4261 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4263 OnLine(source,hostmask,true,'G',duration,reason);
4266 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4268 OnLine(source,ipmask,true,'Z',duration,reason);
4271 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4273 OnLine(source,nickmask,true,'Q',duration,reason);
4276 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4278 OnLine(source,hostmask,true,'E',duration,reason);
4281 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4283 OnLine(source,hostmask,false,'G',0,"");
4286 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4288 OnLine(source,ipmask,false,'Z',0,"");
4291 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4293 OnLine(source,nickmask,false,'Q',0,"");
4296 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4298 OnLine(source,hostmask,false,'E',0,"");
4301 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4303 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4305 if (target_type == TYPE_USER)
4307 userrec* u = (userrec*)dest;
4308 std::deque<std::string> params;
4309 params.push_back(u->nick);
4310 params.push_back(text);
4311 DoOneToMany(user->nick,"MODE",params);
4315 chanrec* c = (chanrec*)dest;
4316 std::deque<std::string> params;
4317 params.push_back(c->name);
4318 params.push_back(text);
4319 DoOneToMany(user->nick,"MODE",params);
4324 virtual void OnSetAway(userrec* user)
4328 std::deque<std::string> params;
4329 params.push_back(":"+std::string(user->awaymsg));
4330 DoOneToMany(user->nick,"AWAY",params);
4334 virtual void OnCancelAway(userrec* user)
4338 std::deque<std::string> params;
4340 DoOneToMany(user->nick,"AWAY",params);
4344 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4346 TreeSocket* s = (TreeSocket*)opaque;
4349 if (target_type == TYPE_USER)
4351 userrec* u = (userrec*)target;
4352 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4356 chanrec* c = (chanrec*)target;
4357 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4362 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4364 TreeSocket* s = (TreeSocket*)opaque;
4367 if (target_type == TYPE_USER)
4369 userrec* u = (userrec*)target;
4370 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4372 else if (target_type == TYPE_OTHER)
4374 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4376 else if (target_type == TYPE_CHANNEL)
4378 chanrec* c = (chanrec*)target;
4379 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4384 virtual void OnEvent(Event* event)
4386 if (event->GetEventID() == "send_metadata")
4388 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4389 if (params->size() < 3)
4391 (*params)[2] = ":" + (*params)[2];
4392 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4394 else if (event->GetEventID() == "send_mode")
4396 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4397 if (params->size() < 2)
4399 // Insert the TS value of the object, either userrec or chanrec
4401 userrec* a = ServerInstance->FindNick((*params)[0]);
4408 chanrec* a = ServerInstance->FindChan((*params)[0]);
4414 params->insert(params->begin() + 1,ConvToStr(ourTS));
4415 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4419 virtual ~ModuleSpanningTree()
4423 virtual Version GetVersion()
4425 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4428 void Implements(char* List)
4430 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4431 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4432 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4433 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4434 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4435 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4436 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4439 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4440 * so that any activity it sees is FINAL, e.g. we arent going to send out
4441 * a NICK message before m_cloaking has finished putting the +x on the user,
4443 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4444 * the module call queue.
4446 Priority Prioritize()
4448 return PRIORITY_LAST;
4453 class ModuleSpanningTreeFactory : public ModuleFactory
4456 ModuleSpanningTreeFactory()
4460 ~ModuleSpanningTreeFactory()
4464 virtual Module * CreateModule(InspIRCd* Me)
4466 TreeProtocolModule = new ModuleSpanningTree(Me);
4467 return TreeProtocolModule;
4473 extern "C" void * init_module( void )
4475 return new ModuleSpanningTreeFactory;