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 switch (permissions)
1400 mode_users[modectr++] = usr;
1401 strlcat(modestring,"o",MAXBUF);
1405 mode_users[modectr++] = usr;
1406 strlcat(modestring,"h",MAXBUF);
1410 mode_users[modectr++] = usr;
1411 strlcat(modestring,"v",MAXBUF);
1414 who = this->Instance->FindNick(usr);
1417 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1418 if (modectr >= (MAXMODES-1))
1420 /* theres a mode for this user. push them onto the mode queue, and flush it
1421 * if there are more than MAXMODES to go.
1423 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1425 /* We also always let u-lined clients win, no matter what the TS value */
1426 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1427 this->Instance->SendMode((const char**)mode_users,modectr,who);
1430 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1437 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1438 /* bouncy bouncy! */
1439 std::deque<std::string> params;
1440 /* modes are now being UNSET... */
1441 *mode_users[1] = '-';
1442 for (unsigned int x = 0; x < modectr; x++)
1446 params.push_back(ConvToStr(us->age));
1448 params.push_back(mode_users[x]);
1451 // tell everyone to bounce the modes. bad modes, bad!
1452 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1454 strcpy(mode_users[1],"+");
1460 /* there werent enough modes built up to flush it during FJOIN,
1461 * or, there are a number left over. flush them out.
1463 if ((modectr > 2) && (who) && (us))
1467 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1468 this->Instance->SendMode((const char**)mode_users,modectr,who);
1471 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1478 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1479 std::deque<std::string> params;
1480 *mode_users[1] = '-';
1481 for (unsigned int x = 0; x < modectr; x++)
1485 params.push_back(ConvToStr(us->age));
1487 params.push_back(mode_users[x]);
1489 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1495 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1497 if (params.size() >= 2)
1499 chanrec* c = this->Instance->FindChan(params[0]);
1502 time_t theirTS = atoi(params[1].c_str());
1503 time_t ourTS = c->age;
1504 if (ourTS >= theirTS)
1506 ServerInstance->Log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1511 DoOneToAllButSender(this->Instance->Config->ServerName,"SYNCTS",params,source);
1516 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1518 if (params.size() < 8)
1520 if (params.size() > 8)
1522 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1525 // NICK age nick host dhost ident +modes ip :gecos
1527 time_t age = atoi(params[0].c_str());
1529 /* This used to have a pretty craq'y loop doing the same thing,
1530 * now we just let the STL do the hard work (more efficiently)
1532 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1534 const char* tempnick = params[1].c_str();
1535 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1537 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1539 if (iter != this->Instance->clientlist.end())
1542 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);
1543 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1547 userrec* _new = new userrec(this->Instance);
1548 this->Instance->clientlist[tempnick] = _new;
1549 _new->SetFd(FD_MAGIC_NUMBER);
1550 strlcpy(_new->nick, tempnick,NICKMAX-1);
1551 strlcpy(_new->host, params[2].c_str(),63);
1552 strlcpy(_new->dhost, params[3].c_str(),63);
1553 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1554 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1555 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1556 _new->registered = REG_ALL;
1559 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1560 _new->modes[(*v)-65] = 1;
1562 if (params[6].find_first_of(":") != std::string::npos)
1563 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1565 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1567 this->Instance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1569 params[7] = ":" + params[7];
1570 DoOneToAllButSender(source,"NICK",params,source);
1572 // Increment the Source Servers User Count..
1573 TreeServer* SourceServer = FindServer(source);
1576 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1577 SourceServer->AddUserCount();
1583 /* Send one or more FJOINs for a channel of users.
1584 * If the length of a single line is more than 480-NICKMAX
1585 * in length, it is split over multiple lines.
1587 void SendFJoins(TreeServer* Current, chanrec* c)
1589 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1591 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1593 size_t dlen, curlen;
1594 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1596 char* ptr = list + dlen;
1598 CUList *ulist = c->GetUsers();
1599 std::vector<userrec*> specific_halfop;
1600 std::vector<userrec*> specific_voice;
1601 std::string modes = "";
1602 std::string params = "";
1604 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1606 int x = c->GetStatusFlags(i->second);
1607 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1609 specific_halfop.push_back(i->second);
1611 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1613 specific_voice.push_back(i->second);
1616 // The first parameter gets a : before it
1617 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s%s", !numusers ? ":" : "", c->GetPrefixChar(i->second), i->second->nick);
1624 if (curlen > (480-NICKMAX))
1626 this->WriteLine(list);
1627 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1631 for (unsigned int y = 0; y < specific_voice.size(); y++)
1634 params.append(specific_voice[y]->nick).append(" ");
1636 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1639 params.append(specific_halfop[y]->nick).append(" ");
1645 this->WriteLine(list);
1646 for (unsigned int y = 0; y < specific_voice.size(); y++)
1649 params.append(specific_voice[y]->nick).append(" ");
1651 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1654 params.append(specific_halfop[y]->nick).append(" ");
1658 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1661 params.append(b->data).append(" ");
1663 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1666 /* Send G, Q, Z and E lines */
1667 void SendXLines(TreeServer* Current)
1670 std::string n = this->Instance->Config->ServerName;
1671 const char* sn = n.c_str();
1673 /* Yes, these arent too nice looking, but they get the job done */
1674 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1676 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);
1677 this->WriteLine(data);
1679 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1681 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);
1682 this->WriteLine(data);
1684 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1686 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);
1687 this->WriteLine(data);
1689 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1691 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);
1692 this->WriteLine(data);
1694 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1696 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);
1697 this->WriteLine(data);
1699 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1701 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);
1702 this->WriteLine(data);
1704 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1706 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);
1707 this->WriteLine(data);
1709 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1711 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);
1712 this->WriteLine(data);
1716 /* Send channel modes and topics */
1717 void SendChannelModes(TreeServer* Current)
1720 std::deque<std::string> list;
1722 std::string n = this->Instance->Config->ServerName;
1723 const char* sn = n.c_str();
1724 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1726 SendFJoins(Current, c->second);
1727 if (*c->second->topic)
1729 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1730 this->WriteLine(data);
1732 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1734 c->second->GetExtList(list);
1735 for (unsigned int j = 0; j < list.size(); j++)
1737 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1742 /* send all users and their oper state/modes */
1743 void SendUsers(TreeServer* Current)
1746 std::deque<std::string> list;
1748 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1750 if (u->second->registered == REG_ALL)
1752 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);
1753 this->WriteLine(data);
1754 if (*u->second->oper)
1756 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1758 if (*u->second->awaymsg)
1760 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1762 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1764 u->second->GetExtList(list);
1765 for (unsigned int j = 0; j < list.size(); j++)
1767 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1773 /* This function is called when we want to send a netburst to a local
1774 * server. There is a set order we must do this, because for example
1775 * users require their servers to exist, and channels require their
1776 * users to exist. You get the idea.
1778 void DoBurst(TreeServer* s)
1780 std::string burst = "BURST "+ConvToStr(time(NULL));
1781 std::string endburst = "ENDBURST";
1782 // Because by the end of the netburst, it could be gone!
1783 std::string name = s->GetName();
1784 this->Instance->WriteOpers("*** Bursting to \2"+name+"\2.");
1785 this->WriteLine(burst);
1786 /* send our version string */
1787 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1788 /* Send server tree */
1789 this->SendServers(TreeRoot,s,1);
1790 /* Send users and their oper status */
1792 /* Send everything else (channel modes, xlines etc) */
1793 this->SendChannelModes(s);
1794 this->SendXLines(s);
1795 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1796 this->WriteLine(endburst);
1797 this->Instance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1800 /* This function is called when we receive data from a remote
1801 * server. We buffer the data in a std::string (it doesnt stay
1802 * there for long), reading using InspSocket::Read() which can
1803 * read up to 16 kilobytes in one operation.
1805 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1806 * THE SOCKET OBJECT FOR US.
1808 virtual bool OnDataReady()
1810 char* data = this->Read();
1811 /* Check that the data read is a valid pointer and it has some content */
1814 this->in_buffer.append(data);
1815 /* While there is at least one new line in the buffer,
1816 * do something useful (we hope!) with it.
1818 while (in_buffer.find("\n") != std::string::npos)
1820 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1821 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1822 if (ret.find("\r") != std::string::npos)
1823 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1824 /* Process this one, abort if it
1825 * didnt return true.
1831 memset(result,0,1024);
1833 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1834 /* ERROR + CAPAB is still allowed unencryped */
1835 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1837 int nbytes = from64tobits(out, ret.c_str(), 1024);
1838 if ((nbytes > 0) && (nbytes < 1024))
1840 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1841 ctx_in->Decrypt(out, result, nbytes, 0);
1842 for (int t = 0; t < nbytes; t++)
1843 if (result[t] == '\7') result[t] = 0;
1848 if (!this->ProcessLine(ret))
1850 ServerInstance->Log(DEBUG,"ProcessLine says no!");
1856 /* EAGAIN returns an empty but non-NULL string, so this
1857 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1859 return (data && !*data);
1862 int WriteLine(std::string line)
1864 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
1868 char result64[10240];
1869 if (this->keylength)
1871 // pad it to the key length
1872 int n = this->keylength - (line.length() % this->keylength);
1875 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);
1876 line.append(n,'\7');
1879 unsigned int ll = line.length();
1880 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1881 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1883 //int from64tobits(char *out, const char *in, int maxlen);
1885 return this->Write(line + "\r\n");
1888 /* Handle ERROR command */
1889 bool Error(std::deque<std::string> ¶ms)
1891 if (params.size() < 1)
1893 this->Instance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1894 /* we will return false to cause the socket to close. */
1898 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
1900 /* Get the reply to a STATS query if it matches this servername,
1901 * and send it back as a load of PUSH queries
1903 if (params.size() > 1)
1905 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
1907 /* It's for our server */
1908 string_list results;
1909 userrec* source = this->Instance->FindNick(prefix);
1912 std::deque<std::string> par;
1913 par.push_back(prefix);
1915 DoStats(this->Instance, *(params[0].c_str()), source, results);
1916 for (size_t i = 0; i < results.size(); i++)
1918 par[1] = "::" + results[i];
1919 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
1926 userrec* source = this->Instance->FindNick(prefix);
1928 DoOneToOne(prefix, "STATS", params, params[1]);
1935 /* Because the core won't let users or even SERVERS set +o,
1936 * we use the OPERTYPE command to do this.
1938 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1940 if (params.size() != 1)
1942 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1945 std::string opertype = params[0];
1946 userrec* u = this->Instance->FindNick(prefix);
1949 u->modes[UM_OPERATOR] = 1;
1950 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1951 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1956 /* Because Andy insists that services-compatible servers must
1957 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1959 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1961 if (params.size() < 3)
1964 userrec* u = this->Instance->FindNick(params[0]);
1968 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1971 std::deque<std::string> par;
1972 par.push_back(params[1]);
1973 /* This is not required as one is sent in OnUserPostNick below
1975 //DoOneToMany(u->nick,"NICK",par);
1976 if (!u->ForceNickChange(params[1].c_str()))
1978 userrec::QuitUser(this->Instance, u, "Nickname collision");
1981 u->age = atoi(params[2].c_str());
1987 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1989 if (params.size() < 2)
1992 userrec* u = this->Instance->FindNick(params[0]);
1996 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
1997 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2002 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
2004 if (params.size() < 1)
2007 std::string servermask = params[0];
2009 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2011 this->Instance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
2012 this->Instance->RehashServer();
2013 ReadConfiguration(false);
2015 DoOneToAllButSender(prefix,"REHASH",params,prefix);
2019 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
2021 if (params.size() != 2)
2024 std::string nick = params[0];
2025 userrec* u = this->Instance->FindNick(prefix);
2026 userrec* who = this->Instance->FindNick(nick);
2030 /* Prepend kill source, if we don't have one */
2031 std::string sourceserv = prefix;
2034 sourceserv = u->server;
2036 if (*(params[1].c_str()) != '[')
2038 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2040 std::string reason = params[1];
2041 params[1] = ":" + params[1];
2042 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2043 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2044 userrec::QuitUser(this->Instance,who,reason);
2049 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2051 if (params.size() < 1)
2054 if (params.size() == 1)
2056 TreeServer* ServerSource = FindServer(prefix);
2059 ServerSource->SetPingFlag();
2064 std::string forwardto = params[1];
2065 if (forwardto == this->Instance->Config->ServerName)
2068 * this is a PONG for us
2069 * if the prefix is a user, check theyre local, and if they are,
2070 * dump the PONG reply back to their fd. If its a server, do nowt.
2071 * Services might want to send these s->s, but we dont need to yet.
2073 userrec* u = this->Instance->FindNick(prefix);
2077 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2082 // not for us, pass it on :)
2083 DoOneToOne(prefix,"PONG",params,forwardto);
2090 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2092 if (params.size() < 3)
2095 TreeServer* ServerSource = FindServer(prefix);
2099 if (params[0] == "*")
2101 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2103 else if (*(params[0].c_str()) == '#')
2105 chanrec* c = this->Instance->FindChan(params[0]);
2108 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2111 else if (*(params[0].c_str()) != '#')
2113 userrec* u = this->Instance->FindNick(params[0]);
2116 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2121 params[2] = ":" + params[2];
2122 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2126 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2128 if (params.size() < 1)
2131 TreeServer* ServerSource = FindServer(prefix);
2135 ServerSource->SetVersion(params[0]);
2137 params[0] = ":" + params[0];
2138 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2142 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2144 if (params.size() < 1)
2147 userrec* u = this->Instance->FindNick(prefix);
2151 u->ChangeDisplayedHost(params[0].c_str());
2152 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2157 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2159 if (params.size() < 6)
2162 bool propogate = false;
2164 switch (*(params[0].c_str()))
2167 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2168 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2171 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2172 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2175 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2176 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2179 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2180 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2183 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2186 /* Just in case... */
2187 this->Instance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2192 /* Send it on its way */
2195 if (atoi(params[4].c_str()))
2197 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());
2201 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());
2203 params[5] = ":" + params[5];
2204 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2206 if (!this->bursting)
2208 ServerInstance->Log(DEBUG,"Applying lines...");
2209 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2214 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2216 if (params.size() < 1)
2219 userrec* u = this->Instance->FindNick(prefix);
2223 u->ChangeName(params[0].c_str());
2224 params[0] = ":" + params[0];
2225 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2230 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2232 if (params.size() < 1)
2235 ServerInstance->Log(DEBUG,"In IDLE command");
2236 userrec* u = this->Instance->FindNick(prefix);
2240 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2241 // an incoming request
2242 if (params.size() == 1)
2244 userrec* x = this->Instance->FindNick(params[0]);
2245 if ((x) && (IS_LOCAL(x)))
2247 userrec* x = this->Instance->FindNick(params[0]);
2248 ServerInstance->Log(DEBUG,"Got IDLE");
2249 char signon[MAXBUF];
2251 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2252 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2253 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2254 std::deque<std::string> par;
2255 par.push_back(prefix);
2256 par.push_back(signon);
2257 par.push_back(idle);
2258 // ours, we're done, pass it BACK
2259 DoOneToOne(params[0],"IDLE",par,u->server);
2263 // not ours pass it on
2264 DoOneToOne(prefix,"IDLE",params,x->server);
2267 else if (params.size() == 3)
2269 std::string who_did_the_whois = params[0];
2270 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2271 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2273 ServerInstance->Log(DEBUG,"Got final IDLE");
2274 // an incoming reply to a whois we sent out
2275 std::string nick_whoised = prefix;
2276 unsigned long signon = atoi(params[1].c_str());
2277 unsigned long idle = atoi(params[2].c_str());
2278 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2279 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2283 // not ours, pass it on
2284 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2291 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2293 if (params.size() < 2)
2296 userrec* u = this->Instance->FindNick(params[0]);
2303 u->Write(params[1]);
2307 // continue the raw onwards
2308 params[1] = ":" + params[1];
2309 DoOneToOne(prefix,"PUSH",params,u->server);
2314 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2316 // :source.server TIME remote.server sendernick
2317 // :remote.server TIME source.server sendernick TS
2318 if (params.size() == 2)
2320 // someone querying our time?
2321 if (this->Instance->Config->ServerName == params[0])
2323 userrec* u = this->Instance->FindNick(params[1]);
2327 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2328 params.push_back(curtime);
2330 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2335 // not us, pass it on
2336 userrec* u = this->Instance->FindNick(params[1]);
2338 DoOneToOne(prefix,"TIME",params,params[0]);
2341 else if (params.size() == 3)
2343 // a response to a previous TIME
2344 userrec* u = this->Instance->FindNick(params[1]);
2345 if ((u) && (IS_LOCAL(u)))
2347 time_t rawtime = atol(params[2].c_str());
2348 struct tm * timeinfo;
2349 timeinfo = localtime(&rawtime);
2351 snprintf(tms,26,"%s",asctime(timeinfo));
2353 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2358 DoOneToOne(prefix,"TIME",params,u->server);
2364 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2366 if (params.size() < 1)
2369 if (params.size() == 1)
2371 std::string stufftobounce = params[0];
2372 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2377 std::string forwardto = params[1];
2378 if (forwardto == this->Instance->Config->ServerName)
2380 // this is a ping for us, send back PONG to the requesting server
2381 params[1] = params[0];
2382 params[0] = forwardto;
2383 DoOneToOne(forwardto,"PONG",params,params[1]);
2387 // not for us, pass it on :)
2388 DoOneToOne(prefix,"PING",params,forwardto);
2394 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2396 if (params.size() < 4)
2399 std::string servername = params[0];
2400 std::string password = params[1];
2401 // hopcount is not used for a remote server, we calculate this ourselves
2402 std::string description = params[3];
2403 TreeServer* ParentOfThis = FindServer(prefix);
2407 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2410 TreeServer* CheckDupe = FindServer(servername);
2413 this->WriteLine("ERROR :Server "+servername+" already exists!");
2414 this->Instance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2417 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2418 ParentOfThis->AddChild(Node);
2419 params[3] = ":" + params[3];
2420 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2421 this->Instance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2425 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2427 if (params.size() < 4)
2430 irc::string servername = params[0].c_str();
2431 std::string sname = params[0];
2432 std::string password = params[1];
2433 int hops = atoi(params[2].c_str());
2437 this->WriteLine("ERROR :Server too far away for authentication");
2438 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2441 std::string description = params[3];
2442 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2444 if ((x->Name == servername) && (x->RecvPass == password))
2446 TreeServer* CheckDupe = FindServer(sname);
2449 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2450 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2453 // Begin the sync here. this kickstarts the
2454 // other side, waiting in WAIT_AUTH_2 state,
2455 // into starting their burst, as it shows
2456 // that we're happy.
2457 this->LinkState = CONNECTED;
2458 // we should add the details of this server now
2459 // to the servers tree, as a child of the root
2461 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2462 TreeRoot->AddChild(Node);
2463 params[3] = ":" + params[3];
2464 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2465 this->bursting = true;
2466 this->DoBurst(Node);
2470 this->WriteLine("ERROR :Invalid credentials");
2471 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2475 bool Inbound_Server(std::deque<std::string> ¶ms)
2477 if (params.size() < 4)
2480 irc::string servername = params[0].c_str();
2481 std::string sname = params[0];
2482 std::string password = params[1];
2483 int hops = atoi(params[2].c_str());
2487 this->WriteLine("ERROR :Server too far away for authentication");
2488 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2491 std::string description = params[3];
2492 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2494 if ((x->Name == servername) && (x->RecvPass == password))
2496 TreeServer* CheckDupe = FindServer(sname);
2499 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2500 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2503 /* If the config says this link is encrypted, but the remote side
2504 * hasnt bothered to send the AES command before SERVER, then we
2505 * boot them off as we MUST have this connection encrypted.
2507 if ((x->EncryptionKey != "") && (!this->ctx_in))
2509 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2510 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2513 this->Instance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2514 this->InboundServerName = sname;
2515 this->InboundDescription = description;
2516 // this is good. Send our details: Our server name and description and hopcount of 0,
2517 // along with the sendpass from this block.
2518 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2519 // move to the next state, we are now waiting for THEM.
2520 this->LinkState = WAIT_AUTH_2;
2524 this->WriteLine("ERROR :Invalid credentials");
2525 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2529 void Split(std::string line, std::deque<std::string> &n)
2532 irc::tokenstream tokens(line);
2534 while ((param = tokens.GetToken()) != "")
2539 bool ProcessLine(std::string line)
2541 std::deque<std::string> params;
2542 irc::string command;
2548 line = line.substr(0, line.find_first_of("\r\n"));
2550 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2552 this->Split(line.c_str(),params);
2554 if ((params[0][0] == ':') && (params.size() > 1))
2556 prefix = params[0].substr(1);
2560 command = params[0].c_str();
2563 if ((!this->ctx_in) && (command == "AES"))
2565 std::string sserv = params[0];
2566 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2568 if ((x->EncryptionKey != "") && (x->Name == sserv))
2570 this->InitAES(x->EncryptionKey,sserv);
2576 else if ((this->ctx_in) && (command == "AES"))
2578 this->Instance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2581 switch (this->LinkState)
2586 // Waiting for SERVER command from remote server. Server initiating
2587 // the connection sends the first SERVER command, listening server
2588 // replies with theirs if its happy, then if the initiator is happy,
2589 // it starts to send its net sync, which starts the merge, otherwise
2590 // it sends an ERROR.
2591 if (command == "PASS")
2593 /* Silently ignored */
2595 else if (command == "SERVER")
2597 return this->Inbound_Server(params);
2599 else if (command == "ERROR")
2601 return this->Error(params);
2603 else if (command == "USER")
2605 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2608 else if (command == "CAPAB")
2610 return this->Capab(params);
2612 else if ((command == "U") || (command == "S"))
2614 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2619 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2624 // Waiting for start of other side's netmerge to say they liked our
2626 if (command == "SERVER")
2628 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2632 else if ((command == "U") || (command == "S"))
2634 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2637 else if (command == "BURST")
2641 /* If a time stamp is provided, try and check syncronization */
2642 time_t THEM = atoi(params[0].c_str());
2643 long delta = THEM-time(NULL);
2644 if ((delta < -600) || (delta > 600))
2646 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));
2647 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2650 else if ((delta < -60) || (delta > 60))
2652 this->Instance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2655 this->LinkState = CONNECTED;
2656 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2657 TreeRoot->AddChild(Node);
2659 params.push_back(InboundServerName);
2660 params.push_back("*");
2661 params.push_back("1");
2662 params.push_back(":"+InboundDescription);
2663 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2664 this->bursting = true;
2665 this->DoBurst(Node);
2667 else if (command == "ERROR")
2669 return this->Error(params);
2671 else if (command == "CAPAB")
2673 return this->Capab(params);
2678 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2682 if (command == "SERVER")
2684 // another server we connected to, which was in WAIT_AUTH_1 state,
2685 // has just sent us their credentials. If we get this far, theyre
2686 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2687 // if we're happy with this, we should send our netburst which
2688 // kickstarts the merge.
2689 return this->Outbound_Reply_Server(params);
2691 else if (command == "ERROR")
2693 return this->Error(params);
2697 // This is the 'authenticated' state, when all passwords
2698 // have been exchanged and anything past this point is taken
2703 std::string direction = prefix;
2704 userrec* t = this->Instance->FindNick(prefix);
2707 direction = t->server;
2709 TreeServer* route_back_again = BestRouteTo(direction);
2710 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2712 if (route_back_again)
2713 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2718 * When there is activity on the socket, reset the ping counter so
2719 * that we're not wasting bandwidth pinging an active server.
2721 route_back_again->SetNextPingTime(time(NULL) + 120);
2722 route_back_again->SetPingFlag();
2725 if (command == "SVSMODE")
2727 /* Services expects us to implement
2728 * SVSMODE. In inspircd its the same as
2733 std::string target = "";
2734 /* Yes, know, this is a mess. Its reasonably fast though as we're
2735 * working with std::string here.
2737 if ((command == "NICK") && (params.size() > 1))
2739 return this->IntroduceClient(prefix,params);
2741 else if (command == "FJOIN")
2743 return this->ForceJoin(prefix,params);
2745 else if (command == "STATS")
2747 return this->Stats(prefix, params);
2749 else if (command == "SERVER")
2751 return this->RemoteServer(prefix,params);
2753 else if (command == "ERROR")
2755 return this->Error(params);
2757 else if (command == "OPERTYPE")
2759 return this->OperType(prefix,params);
2761 else if (command == "FMODE")
2763 return this->ForceMode(prefix,params);
2765 else if (command == "KILL")
2767 return this->RemoteKill(prefix,params);
2769 else if (command == "FTOPIC")
2771 return this->ForceTopic(prefix,params);
2773 else if (command == "REHASH")
2775 return this->RemoteRehash(prefix,params);
2777 else if (command == "METADATA")
2779 return this->MetaData(prefix,params);
2781 else if (command == "PING")
2784 * We just got a ping from a server that's bursting.
2785 * This can't be right, so set them to not bursting, and
2786 * apply their lines.
2790 this->bursting = false;
2791 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2795 prefix = this->GetName();
2797 return this->LocalPing(prefix,params);
2799 else if (command == "PONG")
2802 * We just got a pong from a server that's bursting.
2803 * This can't be right, so set them to not bursting, and
2804 * apply their lines.
2808 this->bursting = false;
2809 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2813 prefix = this->GetName();
2815 return this->LocalPong(prefix,params);
2817 else if (command == "VERSION")
2819 return this->ServerVersion(prefix,params);
2821 else if (command == "FHOST")
2823 return this->ChangeHost(prefix,params);
2825 else if (command == "FNAME")
2827 return this->ChangeName(prefix,params);
2829 else if (command == "ADDLINE")
2831 return this->AddLine(prefix,params);
2833 else if (command == "SVSNICK")
2837 prefix = this->GetName();
2839 return this->ForceNick(prefix,params);
2841 else if (command == "IDLE")
2843 return this->Whois(prefix,params);
2845 else if (command == "PUSH")
2847 return this->Push(prefix,params);
2849 else if (command == "TIME")
2851 return this->Time(prefix,params);
2853 else if ((command == "KICK") && (IsServer(prefix)))
2855 std::string sourceserv = this->myhost;
2856 if (params.size() == 3)
2858 userrec* user = this->Instance->FindNick(params[1]);
2859 chanrec* chan = this->Instance->FindChan(params[0]);
2862 if (!chan->ServerKickUser(user, params[2].c_str(), false))
2863 /* Yikes, the channels gone! */
2867 if (this->InboundServerName != "")
2869 sourceserv = this->InboundServerName;
2871 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2873 else if (command == "SVSJOIN")
2877 prefix = this->GetName();
2879 return this->ServiceJoin(prefix,params);
2881 else if (command == "SQUIT")
2883 if (params.size() == 2)
2885 this->Squit(FindServer(params[0]),params[1]);
2889 else if (command == "ENDBURST")
2891 this->bursting = false;
2892 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2893 std::string sourceserv = this->myhost;
2894 if (this->InboundServerName != "")
2896 sourceserv = this->InboundServerName;
2898 this->Instance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2903 // not a special inter-server command.
2904 // Emulate the actual user doing the command,
2905 // this saves us having a huge ugly parser.
2906 userrec* who = this->Instance->FindNick(prefix);
2907 std::string sourceserv = this->myhost;
2908 if (this->InboundServerName != "")
2910 sourceserv = this->InboundServerName;
2914 if ((command == "NICK") && (params.size() > 0))
2916 /* On nick messages, check that the nick doesnt
2917 * already exist here. If it does, kill their copy,
2920 userrec* x = this->Instance->FindNick(params[0]);
2921 if ((x) && (x != who))
2923 std::deque<std::string> p;
2924 p.push_back(params[0]);
2925 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2926 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2928 p.push_back(prefix);
2929 p.push_back("Nickname collision");
2930 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2931 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2932 userrec* y = this->Instance->FindNick(prefix);
2935 userrec::QuitUser(this->Instance,y,"Nickname collision");
2937 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2941 target = who->server;
2942 const char* strparams[127];
2943 for (unsigned int q = 0; q < params.size(); q++)
2945 strparams[q] = params[q].c_str();
2947 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2949 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2955 // its not a user. Its either a server, or somethings screwed up.
2956 if (IsServer(prefix))
2958 target = this->Instance->Config->ServerName;
2962 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2966 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2975 virtual std::string GetName()
2977 std::string sourceserv = this->myhost;
2978 if (this->InboundServerName != "")
2980 sourceserv = this->InboundServerName;
2985 virtual void OnTimeout()
2987 if (this->LinkState == CONNECTING)
2989 this->Instance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2993 virtual void OnClose()
2995 // Connection closed.
2996 // If the connection is fully up (state CONNECTED)
2997 // then propogate a netsplit to all peers.
2998 std::string quitserver = this->myhost;
2999 if (this->InboundServerName != "")
3001 quitserver = this->InboundServerName;
3003 TreeServer* s = FindServer(quitserver);
3006 Squit(s,"Remote host closed the connection");
3008 this->Instance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
3011 virtual int OnIncomingConnection(int newsock, char* ip)
3013 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3014 * or discovering if this port is the server port, we don't allow connections from any
3015 * IPs for which we don't have a link block.
3019 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
3022 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3023 if (MatchCIDR(ip, (*i).c_str()))
3028 this->Instance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3033 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3034 this->Instance->AddSocket(s);
3039 /** This class is used to resolve server hostnames during /connect and autoconnect.
3040 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3041 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3042 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3043 * will have an IP address which we can then use to continue our connection.
3045 class ServernameResolver : public Resolver
3048 /** A copy of the Link tag info for what we're connecting to.
3049 * We take a copy, rather than using a pointer, just in case the
3050 * admin takes the tag away and rehashes while the domain is resolving.
3054 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3056 /* Nothing in here, folks */
3059 void OnLookupComplete(const std::string &result)
3061 /* Initiate the connection, now that we have an IP to use.
3062 * Passing a hostname directly to InspSocket causes it to
3063 * just bail and set its FD to -1.
3065 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3066 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3068 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3069 if (newsocket->GetFd() > -1)
3072 ServerInstance->AddSocket(newsocket);
3076 /* Something barfed, show the opers */
3077 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3083 void OnError(ResolverError e, const std::string &errormessage)
3086 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3090 class SecurityIPResolver : public Resolver
3095 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3099 void OnLookupComplete(const std::string &result)
3101 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3102 ValidIPs.push_back(result);
3105 void OnError(ResolverError e, const std::string &errormessage)
3107 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3111 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3113 for (unsigned int c = 0; c < list.size(); c++)
3115 if (list[c] == server)
3120 list.push_back(server);
3123 // returns a list of DIRECT servernames for a specific channel
3124 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3126 CUList *ulist = c->GetUsers();
3127 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3129 if (i->second->GetFd() < 0)
3131 TreeServer* best = BestRouteTo(i->second->server);
3133 AddThisServer(best,list);
3139 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3141 TreeServer* omitroute = BestRouteTo(omit);
3142 if ((command == "NOTICE") || (command == "PRIVMSG"))
3144 if (params.size() >= 2)
3147 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3149 params[0] = params[0].substr(1, params[0].length()-1);
3151 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3153 // special routing for private messages/notices
3154 userrec* d = ServerInstance->FindNick(params[0]);
3157 std::deque<std::string> par;
3158 par.push_back(params[0]);
3159 par.push_back(":"+params[1]);
3160 DoOneToOne(prefix,command.c_str(),par,d->server);
3164 else if (*(params[0].c_str()) == '$')
3166 std::deque<std::string> par;
3167 par.push_back(params[0]);
3168 par.push_back(":"+params[1]);
3169 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3174 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3175 chanrec* c = ServerInstance->FindChan(params[0]);
3178 std::deque<TreeServer*> list;
3179 GetListOfServersForChannel(c,list);
3180 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3181 unsigned int lsize = list.size();
3182 for (unsigned int i = 0; i < lsize; i++)
3184 TreeSocket* Sock = list[i]->GetSocket();
3185 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3187 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3188 Sock->WriteLine(data);
3196 unsigned int items = TreeRoot->ChildCount();
3197 for (unsigned int x = 0; x < items; x++)
3199 TreeServer* Route = TreeRoot->GetChild(x);
3200 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3202 TreeSocket* Sock = Route->GetSocket();
3203 Sock->WriteLine(data);
3209 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3211 TreeServer* omitroute = BestRouteTo(omit);
3212 std::string FullLine = ":" + prefix + " " + command;
3213 unsigned int words = params.size();
3214 for (unsigned int x = 0; x < words; x++)
3216 FullLine = FullLine + " " + params[x];
3218 unsigned int items = TreeRoot->ChildCount();
3219 for (unsigned int x = 0; x < items; x++)
3221 TreeServer* Route = TreeRoot->GetChild(x);
3222 // Send the line IF:
3223 // The route has a socket (its a direct connection)
3224 // The route isnt the one to be omitted
3225 // The route isnt the path to the one to be omitted
3226 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3228 TreeSocket* Sock = Route->GetSocket();
3229 Sock->WriteLine(FullLine);
3235 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3237 std::string FullLine = ":" + prefix + " " + command;
3238 unsigned int words = params.size();
3239 for (unsigned int x = 0; x < words; x++)
3241 FullLine = FullLine + " " + params[x];
3243 unsigned int items = TreeRoot->ChildCount();
3244 for (unsigned int x = 0; x < items; x++)
3246 TreeServer* Route = TreeRoot->GetChild(x);
3247 if (Route->GetSocket())
3249 TreeSocket* Sock = Route->GetSocket();
3250 Sock->WriteLine(FullLine);
3256 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3258 TreeServer* Route = BestRouteTo(target);
3261 std::string FullLine = ":" + prefix + " " + command;
3262 unsigned int words = params.size();
3263 for (unsigned int x = 0; x < words; x++)
3265 FullLine = FullLine + " " + params[x];
3267 if (Route->GetSocket())
3269 TreeSocket* Sock = Route->GetSocket();
3270 Sock->WriteLine(FullLine);
3280 std::vector<TreeSocket*> Bindings;
3282 void ReadConfiguration(bool rebind)
3284 Conf = new ConfigReader(ServerInstance);
3287 for (int j =0; j < Conf->Enumerate("bind"); j++)
3289 std::string Type = Conf->ReadValue("bind","type",j);
3290 std::string IP = Conf->ReadValue("bind","address",j);
3291 long Port = Conf->ReadInteger("bind","port",j,true);
3292 if (Type == "servers")
3298 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3299 if (listener->GetState() == I_LISTENING)
3301 ServerInstance->AddSocket(listener);
3302 Bindings.push_back(listener);
3306 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3313 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3314 HideULines = Conf->ReadFlag("options","hideulines",0);
3317 for (int j =0; j < Conf->Enumerate("link"); j++)
3320 std::string Allow = Conf->ReadValue("link","allowmask",j);
3321 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3322 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3323 L.Port = Conf->ReadInteger("link","port",j,true);
3324 L.SendPass = Conf->ReadValue("link","sendpass",j);
3325 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3326 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3327 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3328 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3329 L.NextConnectTime = time(NULL) + L.AutoConnect;
3330 /* Bugfix by brain, do not allow people to enter bad configurations */
3331 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3333 ValidIPs.push_back(L.IPAddr);
3336 ValidIPs.push_back(Allow);
3338 /* Needs resolving */
3340 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3344 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3345 ServerInstance->AddResolver(sr);
3347 catch (ModuleException& e)
3349 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3353 LinkBlocks.push_back(L);
3354 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3360 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3362 else if (L.RecvPass == "")
3364 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3366 else if (L.SendPass == "")
3368 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3370 else if (L.Name == "")
3372 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3376 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3384 class ModuleSpanningTree : public Module
3386 std::vector<TreeSocket*> Bindings;
3389 unsigned int max_local;
3390 unsigned int max_global;
3391 cmd_rconnect* command_rconnect;
3395 ModuleSpanningTree(InspIRCd* Me)
3396 : Module::Module(Me), max_local(0), max_global(0)
3401 ::ServerInstance = Me;
3403 // Create the root of the tree
3404 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3406 ReadConfiguration(true);
3408 command_rconnect = new cmd_rconnect(ServerInstance, this);
3409 ServerInstance->AddCommand(command_rconnect);
3412 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3414 std::string Parent = TreeRoot->GetName();
3415 if (Current->GetParent())
3417 Parent = Current->GetParent()->GetName();
3419 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3421 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3425 ShowLinks(Current->GetChild(q),user,hops+1);
3430 ShowLinks(Current->GetChild(q),user,hops+1);
3433 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3434 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3436 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());
3439 int CountLocalServs()
3441 return TreeRoot->ChildCount();
3446 return serverlist.size();
3449 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3451 ShowLinks(TreeRoot,user,0);
3452 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3456 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3458 unsigned int n_users = ServerInstance->UserCount();
3460 /* Only update these when someone wants to see them, more efficient */
3461 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3462 max_local = ServerInstance->LocalUserCount();
3463 if (n_users > max_global)
3464 max_global = n_users;
3466 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3467 if (ServerInstance->OperCount())
3468 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3469 if (ServerInstance->UnregisteredUserCount())
3470 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3471 if (ServerInstance->ChannelCount())
3472 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3473 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3474 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3475 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3479 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3481 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3485 for (int t = 0; t < depth; t++)
3487 matrix[line][t] = ' ';
3490 // For Aligning, we need to work out exactly how deep this thing is, and produce
3491 // a 'Spacer' String to compensate.
3494 memset(spacer,' ',40);
3495 if ((40 - Current->GetName().length() - depth) > 1) {
3496 spacer[40 - Current->GetName().length() - depth] = '\0';
3505 if (ServerInstance->clientlist.size() == 0) {
3506 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3511 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3513 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3514 totusers += Current->GetUserCount();
3516 strlcpy(&matrix[line][depth],text,80);
3518 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3520 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3524 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3529 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3535 int HandleStats(const char** parameters, int pcnt, userrec* user)
3539 /* Remote STATS, the server is within the 2nd parameter */
3540 std::deque<std::string> params;
3541 params.push_back(parameters[0]);
3542 params.push_back(parameters[1]);
3543 /* Send it out remotely, generate no reply yet */
3544 TreeServer* s = FindServerMask(parameters[1]);
3547 params[1] = s->GetName();
3548 DoOneToOne(user->nick, "STATS", params, s->GetName());
3552 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3559 // Ok, prepare to be confused.
3560 // After much mulling over how to approach this, it struck me that
3561 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3562 // keeping track of a ton of ascii characters, and line by line
3563 // under recursion working out where to place them using multiplications
3564 // and divisons, we instead render the map onto a backplane of characters
3565 // (a character matrix), then draw the branches as a series of "L" shapes
3566 // from the nodes. This is not only friendlier on CPU it uses less stack.
3568 void HandleMap(const char** parameters, int pcnt, userrec* user)
3570 // This array represents a virtual screen which we will
3571 // "scratch" draw to, as the console device of an irc
3572 // client does not provide for a proper terminal.
3574 float totservers = 0;
3575 char matrix[128][80];
3576 for (unsigned int t = 0; t < 128; t++)
3578 matrix[t][0] = '\0';
3581 // The only recursive bit is called here.
3582 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3583 // Process each line one by one. The algorithm has a limit of
3584 // 128 servers (which is far more than a spanning tree should have
3585 // anyway, so we're ok). This limit can be raised simply by making
3586 // the character matrix deeper, 128 rows taking 10k of memory.
3587 for (int l = 1; l < line; l++)
3589 // scan across the line looking for the start of the
3590 // servername (the recursive part of the algorithm has placed
3591 // the servers at indented positions depending on what they
3593 int first_nonspace = 0;
3594 while (matrix[l][first_nonspace] == ' ')
3599 // Draw the `- (corner) section: this may be overwritten by
3600 // another L shape passing along the same vertical pane, becoming
3601 // a |- (branch) section instead.
3602 matrix[l][first_nonspace] = '-';
3603 matrix[l][first_nonspace-1] = '`';
3605 // Draw upwards until we hit the parent server, causing possibly
3606 // other corners (`-) to become branches (|-)
3607 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3609 matrix[l2][first_nonspace-1] = '|';
3613 // dump the whole lot to the user. This is the easy bit, honest.
3614 for (int t = 0; t < line; t++)
3616 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3618 float avg_users = totusers / totservers;
3619 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);
3620 user->WriteServ("007 %s :End of /MAP",user->nick);
3624 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3626 TreeServer* s = FindServerMask(parameters[0]);
3631 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3634 TreeSocket* sock = s->GetSocket();
3637 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3638 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3639 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3640 ServerInstance->RemoveSocket(sock);
3644 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3649 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3654 int HandleTime(const char** parameters, int pcnt, userrec* user)
3656 if ((IS_LOCAL(user)) && (pcnt))
3658 TreeServer* found = FindServerMask(parameters[0]);
3661 // we dont' override for local server
3662 if (found == TreeRoot)
3665 std::deque<std::string> params;
3666 params.push_back(found->GetName());
3667 params.push_back(user->nick);
3668 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3672 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3678 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3680 if ((IS_LOCAL(user)) && (pcnt > 1))
3682 userrec* remote = ServerInstance->FindNick(parameters[1]);
3683 if ((remote) && (remote->GetFd() < 0))
3685 std::deque<std::string> params;
3686 params.push_back(parameters[1]);
3687 DoOneToOne(user->nick,"IDLE",params,remote->server);
3692 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3693 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3700 void DoPingChecks(time_t curtime)
3702 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3704 TreeServer* serv = TreeRoot->GetChild(j);
3705 TreeSocket* sock = serv->GetSocket();
3708 if (curtime >= serv->NextPingTime())
3710 if (serv->AnsweredLastPing())
3712 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3713 serv->SetNextPingTime(curtime + 120);
3717 // they didnt answer, boot them
3718 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3719 sock->Squit(serv,"Ping timeout");
3720 ServerInstance->RemoveSocket(sock);
3728 void AutoConnectServers(time_t curtime)
3730 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3732 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3734 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3735 x->NextConnectTime = curtime + x->AutoConnect;
3736 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3739 // an autoconnected server is not connected. Check if its time to connect it
3740 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3744 /* Do we already have an IP? If so, no need to resolve it. */
3745 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3747 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3748 if (newsocket->GetFd() > -1)
3750 ServerInstance->AddSocket(newsocket);
3754 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3762 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3763 ServerInstance->AddResolver(snr);
3765 catch (ModuleException& e)
3767 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3776 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3778 // we've already checked if pcnt > 0, so this is safe
3779 TreeServer* found = FindServerMask(parameters[0]);
3782 std::string Version = found->GetVersion();
3783 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3784 if (found == TreeRoot)
3786 std::stringstream out(ServerInstance->Config->data005);
3787 std::string token = "";
3788 std::string line5 = "";
3789 int token_counter = 0;
3794 line5 = line5 + token + " ";
3797 if ((token_counter >= 13) || (out.eof() == true))
3799 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3808 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3813 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3815 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3817 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
3819 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3822 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);
3825 /* Do we already have an IP? If so, no need to resolve it. */
3826 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3828 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3829 if (newsocket->GetFd() > -1)
3831 ServerInstance->AddSocket(newsocket);
3835 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3843 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
3844 ServerInstance->AddResolver(snr);
3846 catch (ModuleException& e)
3848 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3855 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());
3860 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3864 virtual int OnStats(char statschar, userrec* user, string_list &results)
3866 if (statschar == 'c')
3868 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3870 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');
3871 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
3873 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
3874 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);
3880 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3882 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3886 if (command == "CONNECT")
3888 return this->HandleConnect(parameters,pcnt,user);
3890 else if (command == "STATS")
3892 return this->HandleStats(parameters,pcnt,user);
3894 else if (command == "SQUIT")
3896 return this->HandleSquit(parameters,pcnt,user);
3898 else if (command == "MAP")
3900 this->HandleMap(parameters,pcnt,user);
3903 else if ((command == "TIME") && (pcnt > 0))
3905 return this->HandleTime(parameters,pcnt,user);
3907 else if (command == "LUSERS")
3909 this->HandleLusers(parameters,pcnt,user);
3912 else if (command == "LINKS")
3914 this->HandleLinks(parameters,pcnt,user);
3917 else if (command == "WHOIS")
3922 return this->HandleRemoteWhois(parameters,pcnt,user);
3925 else if ((command == "VERSION") && (pcnt > 0))
3927 this->HandleVersion(parameters,pcnt,user);
3930 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
3932 // this bit of code cleverly routes all module commands
3933 // to all remote severs *automatically* so that modules
3934 // can just handle commands locally, without having
3935 // to have any special provision in place for remote
3936 // commands and linking protocols.
3937 std::deque<std::string> params;
3939 for (int j = 0; j < pcnt; j++)
3941 if (strchr(parameters[j],' '))
3943 params.push_back(":" + std::string(parameters[j]));
3947 params.push_back(std::string(parameters[j]));
3950 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
3951 DoOneToMany(user->nick,command,params);
3956 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3958 TreeServer* s = FindServer(servername);
3961 description = s->GetDesc();
3965 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3967 if (IS_LOCAL(source))
3969 std::deque<std::string> params;
3970 params.push_back(dest->nick);
3971 params.push_back(channel->name);
3972 DoOneToMany(source->nick,"INVITE",params);
3976 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3978 std::deque<std::string> params;
3979 params.push_back(chan->name);
3980 params.push_back(":"+topic);
3981 DoOneToMany(user->nick,"TOPIC",params);
3984 virtual void OnWallops(userrec* user, const std::string &text)
3988 std::deque<std::string> params;
3989 params.push_back(":"+text);
3990 DoOneToMany(user->nick,"WALLOPS",params);
3994 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3996 if (target_type == TYPE_USER)
3998 userrec* d = (userrec*)dest;
3999 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4001 std::deque<std::string> params;
4003 params.push_back(d->nick);
4004 params.push_back(":"+text);
4005 DoOneToOne(user->nick,"NOTICE",params,d->server);
4008 else if (target_type == TYPE_CHANNEL)
4012 chanrec *c = (chanrec*)dest;
4013 std::string cname = c->name;
4015 cname = status + cname;
4016 std::deque<TreeServer*> list;
4017 GetListOfServersForChannel(c,list);
4018 unsigned int ucount = list.size();
4019 for (unsigned int i = 0; i < ucount; i++)
4021 TreeSocket* Sock = list[i]->GetSocket();
4023 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4027 else if (target_type == TYPE_SERVER)
4031 char* target = (char*)dest;
4032 std::deque<std::string> par;
4033 par.push_back(target);
4034 par.push_back(":"+text);
4035 DoOneToMany(user->nick,"NOTICE",par);
4040 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4042 if (target_type == TYPE_USER)
4044 // route private messages which are targetted at clients only to the server
4045 // which needs to receive them
4046 userrec* d = (userrec*)dest;
4047 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4049 std::deque<std::string> params;
4051 params.push_back(d->nick);
4052 params.push_back(":"+text);
4053 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4056 else if (target_type == TYPE_CHANNEL)
4060 chanrec *c = (chanrec*)dest;
4061 std::string cname = c->name;
4063 cname = status + cname;
4064 std::deque<TreeServer*> list;
4065 GetListOfServersForChannel(c,list);
4066 unsigned int ucount = list.size();
4067 for (unsigned int i = 0; i < ucount; i++)
4069 TreeSocket* Sock = list[i]->GetSocket();
4071 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4075 else if (target_type == TYPE_SERVER)
4079 char* target = (char*)dest;
4080 std::deque<std::string> par;
4081 par.push_back(target);
4082 par.push_back(":"+text);
4083 DoOneToMany(user->nick,"PRIVMSG",par);
4088 virtual void OnBackgroundTimer(time_t curtime)
4090 AutoConnectServers(curtime);
4091 DoPingChecks(curtime);
4094 virtual void OnUserJoin(userrec* user, chanrec* channel)
4096 // Only do this for local users
4099 std::deque<std::string> params;
4101 params.push_back(channel->name);
4103 if (channel->GetUserCounter() > 1)
4105 // not the first in the channel
4106 DoOneToMany(user->nick,"JOIN",params);
4110 // first in the channel, set up their permissions
4111 // and the channel TS with FJOIN.
4113 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4115 params.push_back(channel->name);
4116 params.push_back(ts);
4117 params.push_back("@"+std::string(user->nick));
4118 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4123 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4125 // only occurs for local clients
4126 if (user->registered != REG_ALL)
4128 std::deque<std::string> params;
4129 params.push_back(newhost);
4130 DoOneToMany(user->nick,"FHOST",params);
4133 virtual void OnChangeName(userrec* user, const std::string &gecos)
4135 // only occurs for local clients
4136 if (user->registered != REG_ALL)
4138 std::deque<std::string> params;
4139 params.push_back(gecos);
4140 DoOneToMany(user->nick,"FNAME",params);
4143 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4147 std::deque<std::string> params;
4148 params.push_back(channel->name);
4149 if (partmessage != "")
4150 params.push_back(":"+partmessage);
4151 DoOneToMany(user->nick,"PART",params);
4155 virtual void OnUserConnect(userrec* user)
4157 char agestr[MAXBUF];
4160 std::deque<std::string> params;
4161 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4162 params.push_back(agestr);
4163 params.push_back(user->nick);
4164 params.push_back(user->host);
4165 params.push_back(user->dhost);
4166 params.push_back(user->ident);
4167 params.push_back("+"+std::string(user->FormatModes()));
4168 params.push_back(user->GetIPString());
4169 params.push_back(":"+std::string(user->fullname));
4170 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4172 // User is Local, change needs to be reflected!
4173 TreeServer* SourceServer = FindServer(user->server);
4176 SourceServer->AddUserCount();
4182 virtual void OnUserQuit(userrec* user, const std::string &reason)
4184 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4186 std::deque<std::string> params;
4187 params.push_back(":"+reason);
4188 DoOneToMany(user->nick,"QUIT",params);
4190 // Regardless, We need to modify the user Counts..
4191 TreeServer* SourceServer = FindServer(user->server);
4194 SourceServer->DelUserCount();
4199 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4203 std::deque<std::string> params;
4204 params.push_back(user->nick);
4205 DoOneToMany(oldnick,"NICK",params);
4209 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4211 if ((source) && (IS_LOCAL(source)))
4213 std::deque<std::string> params;
4214 params.push_back(chan->name);
4215 params.push_back(user->nick);
4216 params.push_back(":"+reason);
4217 DoOneToMany(source->nick,"KICK",params);
4221 std::deque<std::string> params;
4222 params.push_back(chan->name);
4223 params.push_back(user->nick);
4224 params.push_back(":"+reason);
4225 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4229 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4231 std::deque<std::string> params;
4232 params.push_back(dest->nick);
4233 params.push_back(":"+reason);
4234 DoOneToMany(source->nick,"KILL",params);
4237 virtual void OnRehash(const std::string ¶meter)
4239 if (parameter != "")
4241 std::deque<std::string> params;
4242 params.push_back(parameter);
4243 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4245 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4247 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4248 ServerInstance->RehashServer();
4251 ReadConfiguration(false);
4254 // note: the protocol does not allow direct umode +o except
4255 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4257 virtual void OnOper(userrec* user, const std::string &opertype)
4261 std::deque<std::string> params;
4262 params.push_back(opertype);
4263 DoOneToMany(user->nick,"OPERTYPE",params);
4267 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4269 if (IS_LOCAL(source))
4272 snprintf(type,8,"%cLINE",linetype);
4273 std::string stype = type;
4276 char sduration[MAXBUF];
4277 snprintf(sduration,MAXBUF,"%ld",duration);
4278 std::deque<std::string> params;
4279 params.push_back(host);
4280 params.push_back(sduration);
4281 params.push_back(":"+reason);
4282 DoOneToMany(source->nick,stype,params);
4286 std::deque<std::string> params;
4287 params.push_back(host);
4288 DoOneToMany(source->nick,stype,params);
4293 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4295 OnLine(source,hostmask,true,'G',duration,reason);
4298 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4300 OnLine(source,ipmask,true,'Z',duration,reason);
4303 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4305 OnLine(source,nickmask,true,'Q',duration,reason);
4308 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4310 OnLine(source,hostmask,true,'E',duration,reason);
4313 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4315 OnLine(source,hostmask,false,'G',0,"");
4318 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4320 OnLine(source,ipmask,false,'Z',0,"");
4323 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4325 OnLine(source,nickmask,false,'Q',0,"");
4328 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4330 OnLine(source,hostmask,false,'E',0,"");
4333 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4335 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4337 if (target_type == TYPE_USER)
4339 userrec* u = (userrec*)dest;
4340 std::deque<std::string> params;
4341 params.push_back(u->nick);
4342 params.push_back(text);
4343 DoOneToMany(user->nick,"MODE",params);
4347 chanrec* c = (chanrec*)dest;
4348 std::deque<std::string> params;
4349 params.push_back(c->name);
4350 params.push_back(text);
4351 DoOneToMany(user->nick,"MODE",params);
4356 virtual void OnSetAway(userrec* user)
4360 std::deque<std::string> params;
4361 params.push_back(":"+std::string(user->awaymsg));
4362 DoOneToMany(user->nick,"AWAY",params);
4366 virtual void OnCancelAway(userrec* user)
4370 std::deque<std::string> params;
4372 DoOneToMany(user->nick,"AWAY",params);
4376 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4378 TreeSocket* s = (TreeSocket*)opaque;
4381 if (target_type == TYPE_USER)
4383 userrec* u = (userrec*)target;
4384 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4388 chanrec* c = (chanrec*)target;
4389 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4394 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4396 TreeSocket* s = (TreeSocket*)opaque;
4399 if (target_type == TYPE_USER)
4401 userrec* u = (userrec*)target;
4402 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4404 else if (target_type == TYPE_OTHER)
4406 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4408 else if (target_type == TYPE_CHANNEL)
4410 chanrec* c = (chanrec*)target;
4411 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4416 virtual void OnEvent(Event* event)
4418 if (event->GetEventID() == "send_metadata")
4420 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4421 if (params->size() < 3)
4423 (*params)[2] = ":" + (*params)[2];
4424 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4426 else if (event->GetEventID() == "send_mode")
4428 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4429 if (params->size() < 2)
4431 // Insert the TS value of the object, either userrec or chanrec
4433 userrec* a = ServerInstance->FindNick((*params)[0]);
4440 chanrec* a = ServerInstance->FindChan((*params)[0]);
4446 params->insert(params->begin() + 1,ConvToStr(ourTS));
4447 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4451 virtual ~ModuleSpanningTree()
4455 virtual Version GetVersion()
4457 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4460 void Implements(char* List)
4462 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4463 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4464 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4465 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4466 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4467 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4468 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4471 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4472 * so that any activity it sees is FINAL, e.g. we arent going to send out
4473 * a NICK message before m_cloaking has finished putting the +x on the user,
4475 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4476 * the module call queue.
4478 Priority Prioritize()
4480 return PRIORITY_LAST;
4485 class ModuleSpanningTreeFactory : public ModuleFactory
4488 ModuleSpanningTreeFactory()
4492 ~ModuleSpanningTreeFactory()
4496 virtual Module * CreateModule(InspIRCd* Me)
4498 TreeProtocolModule = new ModuleSpanningTree(Me);
4499 return TreeProtocolModule;
4505 extern "C" void * init_module( void )
4507 return new ModuleSpanningTreeFactory;