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"
35 #include "helperfuncs.h"
37 #include "inspstring.h"
41 #include "cull_list.h"
44 #define nspace __gnu_cxx
47 * The server list in InspIRCd is maintained as two structures
48 * which hold the data in different ways. Most of the time, we
49 * want to very quicky obtain three pieces of information:
51 * (1) The information on a server
52 * (2) The information on the server we must send data through
53 * to actually REACH the server we're after
54 * (3) Potentially, the child/parent objects of this server
56 * The InspIRCd spanning protocol provides easy access to these
57 * by storing the data firstly in a recursive structure, where
58 * each item references its parent item, and a dynamic list
59 * of child items, and another structure which stores the items
60 * hashed, linearly. This means that if we want to find a server
61 * by name quickly, we can look it up in the hash, avoiding
62 * any O(n) lookups. If however, during a split or sync, we want
63 * to apply an operation to a server, and any of its child objects
64 * we can resort to recursion to walk the tree structure.
67 using irc::sockets::MatchCIDR;
69 class ModuleSpanningTree;
70 static ModuleSpanningTree* TreeProtocolModule;
72 extern InspIRCd* ServerInstance;
74 extern std::vector<Module*> modules;
75 extern std::vector<ircd_module*> factory;
78 /* Any socket can have one of five states at any one time.
79 * The LISTENER state indicates a socket which is listening
80 * for connections. It cannot receive data itself, only incoming
82 * The CONNECTING state indicates an outbound socket which is
83 * waiting to be writeable.
84 * The WAIT_AUTH_1 state indicates the socket is outbound and
85 * has successfully connected, but has not yet sent and received
87 * The WAIT_AUTH_2 state indicates that the socket is inbound
88 * (allocated by a LISTENER) but has not yet sent and received
90 * The CONNECTED state represents a fully authorized, fully
93 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
95 /* Foward declarations */
99 /* This variable represents the root of the server tree
100 * (for all intents and purposes, it's us)
102 TreeServer *TreeRoot;
106 /* This hash_map holds the hash equivalent of the server
107 * tree, used for rapid linear lookups.
109 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
110 server_hash serverlist;
112 typedef nspace::hash_map<std::string, userrec*> uid_hash;
113 typedef nspace::hash_map<std::string, char*> sid_hash;
115 /* More forward declarations */
116 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
117 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
118 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
119 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
120 void ReadConfiguration(bool rebind);
122 /* Flatten links and /MAP for non-opers */
124 /* Hide U-Lined servers in /MAP and /LINKS */
127 /* Imported from xline.cpp for use during netburst */
128 extern std::vector<KLine> klines;
129 extern std::vector<GLine> glines;
130 extern std::vector<ZLine> zlines;
131 extern std::vector<QLine> qlines;
132 extern std::vector<ELine> elines;
133 extern std::vector<KLine> pklines;
134 extern std::vector<GLine> pglines;
135 extern std::vector<ZLine> pzlines;
136 extern std::vector<QLine> pqlines;
137 extern std::vector<ELine> pelines;
139 std::vector<std::string> ValidIPs;
141 class UserManager : public classbase
152 std::string UserToUID(userrec* user)
157 std::string UIDToUser(const std::string &UID)
162 std::string CreateAndAdd(userrec* user)
167 std::string CreateAndAdd(const std::string &servername)
172 std::string ServerToSID(const std::string &servername)
177 std::string SIDToServer(const std::string &SID)
182 userrec* FindByID(const std::string &UID)
189 /* Each server in the tree is represented by one class of
190 * type TreeServer. A locally connected TreeServer can
191 * have a class of type TreeSocket associated with it, for
192 * remote servers, the TreeSocket entry will be NULL.
193 * Each server also maintains a pointer to its parent
194 * (NULL if this server is ours, at the top of the tree)
195 * and a pointer to its "Route" (see the comments in the
196 * constructors below), and also a dynamic list of pointers
197 * to its children which can be iterated recursively
198 * if required. Creating or deleting objects of type
199 i* TreeServer automatically maintains the hash_map of
200 * TreeServer items, deleting and inserting them as they
201 * are created and destroyed.
204 class TreeServer : public classbase
206 TreeServer* Parent; /* Parent entry */
207 TreeServer* Route; /* Route entry */
208 std::vector<TreeServer*> Children; /* List of child objects */
209 irc::string ServerName; /* Server's name */
210 std::string ServerDesc; /* Server's description */
211 std::string VersionString; /* Version string or empty string */
212 int UserCount; /* Not used in this version */
213 int OperCount; /* Not used in this version */
214 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
215 time_t NextPing; /* After this time, the server should be PINGed*/
216 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
220 /* We don't use this constructor. Its a dummy, and won't cause any insertion
221 * of the TreeServer into the hash_map. See below for the two we DO use.
229 UserCount = OperCount = 0;
230 VersionString = ServerInstance->GetVersionString();
233 /* We use this constructor only to create the 'root' item, TreeRoot, which
234 * represents our own server. Therefore, it has no route, no parent, and
235 * no socket associated with it. Its version string is our own local version.
237 TreeServer(std::string Name, std::string Desc) : ServerName(Name.c_str()), ServerDesc(Desc)
241 UserCount = OperCount = 0;
242 VersionString = ServerInstance->GetVersionString();
244 Socket = NULL; /* Fix by brain */
248 /* When we create a new server, we call this constructor to initialize it.
249 * This constructor initializes the server's Route and Parent, and sets up
250 * its ping counters so that it will be pinged one minute from now.
252 TreeServer(std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock) : Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
255 UserCount = OperCount = 0;
256 this->SetNextPingTime(time(NULL) + 120);
259 /* find the 'route' for this server (e.g. the one directly connected
260 * to the local server, which we can use to reach it)
262 * In the following example, consider we have just added a TreeServer
263 * class for server G on our network, of which we are server A.
264 * To route traffic to G (marked with a *) we must send the data to
265 * B (marked with a +) so this algorithm initializes the 'Route'
266 * value to point at whichever server traffic must be routed through
267 * to get here. If we were to try this algorithm with server B,
268 * the Route pointer would point at its own object ('this').
278 * We only run this algorithm when a server is created, as
279 * the routes remain constant while ever the server exists, and
280 * do not need to be re-calculated.
284 if (Route == TreeRoot)
290 while (this->Route->GetParent() != TreeRoot)
292 this->Route = Route->GetParent();
296 /* Because recursive code is slow and takes a lot of resources,
297 * we store two representations of the server tree. The first
298 * is a recursive structure where each server references its
299 * children and its parent, which is used for netbursts and
300 * netsplits to dump the whole dataset to the other server,
301 * and the second is used for very fast lookups when routing
302 * messages and is instead a hash_map, where each item can
303 * be referenced by its server name. The AddHashEntry()
304 * call below automatically inserts each TreeServer class
305 * into the hash_map as it is created. There is a similar
306 * maintainance call in the destructor to tidy up deleted
310 this->AddHashEntry();
313 int QuitUsers(const std::string &reason)
315 log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
316 const char* reason_s = reason.c_str();
317 std::vector<userrec*> time_to_die;
318 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
320 if (!strcmp(n->second->server, this->ServerName.c_str()))
322 time_to_die.push_back(n->second);
325 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
327 userrec* a = (userrec*)*n;
328 log(DEBUG,"Kill %s fd=%d",a->nick,a->fd);
330 userrec::QuitUser(ServerInstance,a,reason_s);
332 return time_to_die.size();
335 /* This method is used to add the structure to the
336 * hash_map for linear searches. It is only called
337 * by the constructors.
341 server_hash::iterator iter;
342 iter = serverlist.find(this->ServerName.c_str());
343 if (iter == serverlist.end())
344 serverlist[this->ServerName.c_str()] = this;
347 /* This method removes the reference to this object
348 * from the hash_map which is used for linear searches.
349 * It is only called by the default destructor.
353 server_hash::iterator iter;
354 iter = serverlist.find(this->ServerName.c_str());
355 if (iter != serverlist.end())
356 serverlist.erase(iter);
359 /* These accessors etc should be pretty self-
363 TreeServer* GetRoute()
368 std::string GetName()
370 return ServerName.c_str();
373 std::string GetDesc()
378 std::string GetVersion()
380 return VersionString;
383 void SetNextPingTime(time_t t)
386 LastPingWasGood = false;
389 time_t NextPingTime()
394 bool AnsweredLastPing()
396 return LastPingWasGood;
401 LastPingWasGood = true;
424 TreeSocket* GetSocket()
429 TreeServer* GetParent()
434 void SetVersion(std::string Version)
436 VersionString = Version;
439 unsigned int ChildCount()
441 return Children.size();
444 TreeServer* GetChild(unsigned int n)
446 if (n < Children.size())
448 /* Make sure they cant request
449 * an out-of-range object. After
450 * all we know what these programmer
451 * types are like *grin*.
461 void AddChild(TreeServer* Child)
463 Children.push_back(Child);
466 bool DelChild(TreeServer* Child)
468 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
479 /* Removes child nodes of this node, and of that node, etc etc.
480 * This is used during netsplits to automatically tidy up the
481 * server tree. It is slow, we don't use it for much else.
485 bool stillchildren = true;
486 while (stillchildren)
488 stillchildren = false;
489 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
491 TreeServer* s = (TreeServer*)*a;
495 stillchildren = true;
504 /* We'd better tidy up after ourselves, eh? */
505 this->DelHashEntry();
509 /* The Link class might as well be a struct,
510 * but this is C++ and we don't believe in structs (!).
511 * It holds the entire information of one <link>
512 * tag from the main config file. We maintain a list
513 * of them, and populate the list on rehash/load.
516 class Link : public classbase
522 std::string SendPass;
523 std::string RecvPass;
524 unsigned long AutoConnect;
525 time_t NextConnectTime;
526 std::string EncryptionKey;
527 bool HiddenFromStats;
530 /* The usual stuff for inspircd modules,
531 * plus the vector of Link classes which we
532 * use to store the <link> tags from the config
536 std::vector<Link> LinkBlocks;
538 /* Yay for fast searches!
539 * This is hundreds of times faster than recursion
540 * or even scanning a linked list, especially when
541 * there are more than a few servers to deal with.
544 TreeServer* FindServer(std::string ServerName)
546 server_hash::iterator iter;
547 iter = serverlist.find(ServerName.c_str());
548 if (iter != serverlist.end())
558 /* Returns the locally connected server we must route a
559 * message through to reach server 'ServerName'. This
560 * only applies to one-to-one and not one-to-many routing.
561 * See the comments for the constructor of TreeServer
564 TreeServer* BestRouteTo(std::string ServerName)
566 if (ServerName.c_str() == TreeRoot->GetName())
568 TreeServer* Found = FindServer(ServerName);
571 return Found->GetRoute();
579 /* Find the first server matching a given glob mask.
580 * Theres no find-using-glob method of hash_map [awwww :-(]
581 * so instead, we iterate over the list using an iterator
582 * and match each one until we get a hit. Yes its slow,
585 TreeServer* FindServerMask(std::string ServerName)
587 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
589 if (Srv->MatchText(i->first.c_str(),ServerName))
595 /* A convenient wrapper that returns true if a server exists */
596 bool IsServer(std::string ServerName)
598 return (FindServer(ServerName) != NULL);
602 class cmd_rconnect : public command_t
606 cmd_rconnect (Module* Callback) : command_t("RCONNECT", 'o', 2), Creator(Callback)
608 this->source = "m_spanningtree.so";
609 syntax = "<remote-server-mask> <servermask>";
612 void Handle (const char** parameters, int pcnt, userrec *user)
614 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
615 /* Is this aimed at our server? */
616 if (Srv->MatchText(ServerInstance->Config->ServerName,parameters[0]))
618 /* Yes, initiate the given connect */
619 ServerInstance->WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
621 para[0] = parameters[1];
622 Creator->OnPreCommand("CONNECT", para, 1, user, true);
629 /* Every SERVER connection inbound or outbound is represented by
630 * an object of type TreeSocket.
631 * TreeSockets, being inherited from InspSocket, can be tied into
632 * the core socket engine, and we cn therefore receive activity events
633 * for them, just like activex objects on speed. (yes really, that
634 * is a technical term!) Each of these which relates to a locally
635 * connected server is assocated with it, by hooking it onto a
636 * TreeSocket class using its constructor. In this way, we can
637 * maintain a list of servers, some of which are directly connected,
638 * some of which are not.
641 class TreeSocket : public InspSocket
644 std::string in_buffer;
645 ServerState LinkState;
646 std::string InboundServerName;
647 std::string InboundDescription;
649 int num_lost_servers;
651 bool LastPingWasGood;
655 unsigned int keylength;
659 /* Because most of the I/O gubbins are encapsulated within
660 * InspSocket, we just call the superclass constructor for
661 * most of the action, and append a few of our own values
664 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
665 : InspSocket(SI, host, port, listening, maxtime)
668 this->LinkState = LISTENER;
670 this->ctx_out = NULL;
673 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
674 : InspSocket(SI, host, port, listening, maxtime)
677 this->LinkState = CONNECTING;
679 this->ctx_out = NULL;
682 /* When a listening socket gives us a new file descriptor,
683 * we must associate it with a socket without creating a new
684 * connection. This constructor is used for this purpose.
686 TreeSocket(InspIRCd* SI, int newfd, char* ip)
687 : InspSocket(SI, newfd, ip)
689 this->LinkState = WAIT_AUTH_1;
691 this->ctx_out = NULL;
692 this->SendCapabilities();
703 void InitAES(std::string key,std::string SName)
710 log(DEBUG,"Initialized AES key %s",key.c_str());
711 // key must be 16, 24, 32 etc bytes (multiple of 8)
712 keylength = key.length();
713 if (!(keylength == 16 || keylength == 24 || keylength == 32))
715 ServerInstance->WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
716 log(DEBUG,"Key length not 16, 24 or 32 characters!");
720 ServerInstance->WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
721 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\
722 \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);
723 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\
724 \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);
728 /* When an outbound connection finishes connecting, we receive
729 * this event, and must send our SERVER string to the other
730 * side. If the other side is happy, as outlined in the server
731 * to server docs on the inspircd.org site, the other side
732 * will then send back its own server string.
734 virtual bool OnConnected()
736 if (this->LinkState == CONNECTING)
738 /* we do not need to change state here. */
739 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
741 if (x->Name == this->myhost)
743 ServerInstance->WriteOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
744 this->SendCapabilities();
745 if (x->EncryptionKey != "")
747 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
749 ServerInstance->WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
753 this->WriteLine(std::string("AES ")+ServerInstance->Config->ServerName);
754 this->InitAES(x->EncryptionKey,x->Name.c_str());
757 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
758 this->WriteLine(std::string("SERVER ")+ServerInstance->Config->ServerName+" "+x->SendPass+" 0 :"+ServerInstance->Config->ServerDesc);
763 /* There is a (remote) chance that between the /CONNECT and the connection
764 * being accepted, some muppet has removed the <link> block and rehashed.
765 * If that happens the connection hangs here until it's closed. Unlikely
766 * and rather harmless.
768 ServerInstance->WriteOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
772 virtual void OnError(InspSocketError e)
774 /* We don't handle this method, because all our
775 * dirty work is done in OnClose() (see below)
776 * which is still called on error conditions too.
778 if (e == I_ERR_CONNECT)
780 ServerInstance->WriteOpers("*** Connection failed: Connection refused");
784 virtual int OnDisconnect()
786 /* For the same reason as above, we don't
787 * handle OnDisconnect()
792 /* Recursively send the server tree with distances as hops.
793 * This is used during network burst to inform the other server
794 * (and any of ITS servers too) of what servers we know about.
795 * If at any point any of these servers already exist on the other
796 * end, our connection may be terminated. The hopcounts given
797 * by this function are relative, this doesn't matter so long as
798 * they are all >1, as all the remote servers re-calculate them
799 * to be relative too, with themselves as hop 0.
801 void SendServers(TreeServer* Current, TreeServer* s, int hops)
804 for (unsigned int q = 0; q < Current->ChildCount(); q++)
806 TreeServer* recursive_server = Current->GetChild(q);
807 if (recursive_server != s)
809 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
810 this->WriteLine(command);
811 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
812 /* down to next level */
813 this->SendServers(recursive_server, s, hops+1);
818 std::string MyCapabilities()
820 std::vector<std::string> modlist;
821 std::string capabilities = "";
823 for (int i = 0; i <= MODCOUNT; i++)
825 if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
826 modlist.push_back(ServerInstance->Config->module_names[i]);
828 sort(modlist.begin(),modlist.end());
829 for (unsigned int i = 0; i < modlist.size(); i++)
832 capabilities = capabilities + ",";
833 capabilities = capabilities + modlist[i];
838 void SendCapabilities()
840 this->WriteLine("CAPAB "+MyCapabilities());
843 bool Capab(std::deque<std::string> params)
845 if (params.size() != 1)
847 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
851 if (params[0] != this->MyCapabilities())
853 std::string quitserver = this->myhost;
854 if (this->InboundServerName != "")
856 quitserver = this->InboundServerName;
859 ServerInstance->WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
860 ServerInstance->WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
861 ServerInstance->WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
862 ServerInstance->WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
863 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
870 /* This function forces this server to quit, removing this server
871 * and any users on it (and servers and users below that, etc etc).
872 * It's very slow and pretty clunky, but luckily unless your network
873 * is having a REAL bad hair day, this function shouldnt be called
874 * too many times a month ;-)
876 void SquitServer(std::string &from, TreeServer* Current)
878 /* recursively squit the servers attached to 'Current'.
879 * We're going backwards so we don't remove users
880 * while we still need them ;)
882 for (unsigned int q = 0; q < Current->ChildCount(); q++)
884 TreeServer* recursive_server = Current->GetChild(q);
885 this->SquitServer(from,recursive_server);
887 /* Now we've whacked the kids, whack self */
889 num_lost_users += Current->QuitUsers(from);
892 /* This is a wrapper function for SquitServer above, which
893 * does some validation first and passes on the SQUIT to all
894 * other remaining servers.
896 void Squit(TreeServer* Current,std::string reason)
898 if ((Current) && (Current != TreeRoot))
900 std::deque<std::string> params;
901 params.push_back(Current->GetName());
902 params.push_back(":"+reason);
903 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
904 if (Current->GetParent() == TreeRoot)
906 ServerInstance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
910 ServerInstance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
912 num_lost_servers = 0;
914 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
915 SquitServer(from, Current);
917 Current->GetParent()->DelChild(Current);
919 ServerInstance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
923 log(DEFAULT,"Squit from unknown server");
927 /* FMODE command - server mode with timestamp checks */
928 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
930 /* Chances are this is a 1.0 FMODE without TS */
931 if (params.size() < 3)
933 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
938 std::string sourceserv;
940 /* Are we dealing with an FMODE from a user, or from a server? */
941 userrec* who = ServerInstance->FindNick(source);
944 /* FMODE from a user, set sourceserv to the users server name */
945 sourceserv = who->server;
949 /* FMODE from a server, create a fake user to receive mode feedback */
950 who = new userrec(ServerInstance);
951 who->fd = FD_MAGIC_NUMBER;
952 smode = true; /* Setting this flag tells us we should free the userrec later */
953 sourceserv = source; /* Set sourceserv to the actual source string */
955 const char* modelist[64];
958 memset(&modelist,0,sizeof(modelist));
959 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
963 /* The timestamp is in this position.
964 * We don't want to pass that up to the
965 * server->client protocol!
967 TS = atoi(params[q].c_str());
971 /* Everything else is fine to append to the modelist */
972 modelist[n++] = params[q].c_str();
976 /* Extract the TS value of the object, either userrec or chanrec */
977 userrec* dst = ServerInstance->FindNick(params[0]);
978 chanrec* chan = NULL;
986 chan = ServerInstance->FindChan(params[0]);
993 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
998 log(DEBUG,"Entering TS equality check");
999 ModeHandler* mh = NULL;
1000 unsigned long paramptr = 3;
1001 std::string to_bounce = "";
1002 std::string to_keep = "";
1003 std::vector<std::string> params_to_keep;
1004 std::string params_to_bounce = "";
1006 char cur_change = 1;
1007 char old_change = 0;
1008 char old_bounce_change = 0;
1009 /* Merge modes, basically do special stuff to mode with params */
1010 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1023 /* We only care about whats being set,
1024 * not whats being unset
1026 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1028 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1030 /* We only want to do special things to
1031 * modes with parameters, we are going to rewrite
1035 adding ? cur_change = '+' : cur_change = '-';
1037 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1039 /* The mode is set here, check which we should keep */
1042 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1044 if (which_to_keep == true)
1046 /* Keep ours, bounce theirs:
1047 * Send back ours to them and
1048 * drop their mode changs
1050 adding ? cur_change = '+' : cur_change = '-';
1051 if (cur_change != old_bounce_change)
1052 to_bounce += cur_change;
1054 old_bounce_change = cur_change;
1056 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1057 params_to_bounce.append(" ").append(ret.second);
1061 /* Keep theirs: Accept their mode change,
1064 adding ? cur_change = '+' : cur_change = '-';
1065 if (cur_change != old_change)
1066 to_keep += cur_change;
1068 old_change = cur_change;
1070 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1071 params_to_keep.push_back(params[paramptr]);
1076 /* Mode isnt set here, we want it */
1077 adding ? cur_change = '+' : cur_change = '-';
1078 if (cur_change != old_change)
1079 to_keep += cur_change;
1081 old_change = cur_change;
1083 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1084 params_to_keep.push_back(params[paramptr]);
1091 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1095 adding ? cur_change = '+' : cur_change = '-';
1097 /* Just keep this, safe to merge with no checks
1098 * it has no parameters
1101 if (cur_change != old_change)
1102 to_keep += cur_change;
1104 old_change = cur_change;
1106 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1108 log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1109 params_to_keep.push_back(params[paramptr++]);
1116 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1120 /* Taking a mode away */
1121 adding ? cur_change = '+' : cur_change = '-';
1123 if (cur_change != old_change)
1124 to_keep += cur_change;
1126 old_change = cur_change;
1128 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1129 params_to_keep.push_back(params[paramptr++]);
1136 if (to_bounce.length())
1138 std::deque<std::string> newparams;
1139 newparams.push_back(params[0]);
1140 newparams.push_back(ConvToStr(ourTS));
1141 newparams.push_back(to_bounce+params_to_bounce);
1142 DoOneToOne(ServerInstance->Config->ServerName,"FMODE",newparams,sourceserv);
1145 if (to_keep.length())
1149 modelist[0] = params[0].c_str();
1150 modelist[1] = to_keep.c_str();
1152 if (params_to_keep.size() > 2)
1154 for (q = 2; (q < params_to_keep.size()) && (q < 64); q++)
1156 log(DEBUG,"Item %d of %d", q, params_to_keep.size());
1157 modelist[n++] = params_to_keep[q].c_str();
1163 log(DEBUG,"Send mode");
1164 Srv->SendMode(modelist, n+2, who);
1168 log(DEBUG,"Send mode client");
1169 Srv->CallCommandHandler("MODE", modelist, n+2, who);
1172 /* HOT POTATO! PASS IT ON! */
1173 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1177 /* U-lined servers always win regardless of their TS */
1178 if ((TS > ourTS) && (!Srv->IsUlined(source)))
1180 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1181 * SHOULD accept it, if its clock is right.
1183 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1184 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1185 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1187 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1188 * writing the code. It took me a while to come up with this solution.
1190 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1193 std::deque<std::string> newparams; /* New parameter list we send back */
1194 newparams.push_back(params[0]); /* Target, user or channel */
1195 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1196 newparams.push_back(""); /* This contains the mode string. For now
1197 * it's empty, we fill it below.
1200 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1201 * set to avoid a desync here.
1203 std::string modebounce = "";
1206 ModeHandler* mh = NULL;
1207 char cur_change = 1;
1208 char old_change = 0;
1209 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1211 /* Iterate over all mode chars in the sent set */
1214 /* Adding or subtracting modes? */
1222 /* Find the mode handler for this mode */
1223 mh = ServerInstance->ModeGrok->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1225 /* Got a mode handler?
1226 * This also prevents us bouncing modes we have no handler for.
1233 /* Does the mode require a parameter right now?
1234 * If it does, fetch it if we can
1236 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1239 /* Call the ModeSet method to determine if its set with the
1240 * given parameter here or not.
1242 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1244 /* XXX: Really. Dont ask.
1245 * Determine from if its set combined with what the current
1246 * 'state' is (adding or not) as to wether we should 'invert'
1247 * or 'reinforce' the mode change
1249 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1251 /* Quickly determine if we have 'flipped' from + to -,
1252 * or - to +, to prevent unneccessary +/- chars in the
1253 * output string that waste bandwidth
1255 if (cur_change != old_change)
1256 modebounce += cur_change;
1257 old_change = cur_change;
1259 /* Add the mode character to the output string */
1260 modebounce += mh->GetModeChar();
1262 /* We got a parameter back from ModeHandler::ModeSet,
1263 * are we supposed to be sending one out right now?
1265 if (ret.second.length())
1267 if (mh->GetNumParams(cur_change == '+') > 0)
1268 /* Yes we're supposed to be sending out
1269 * the parameter. Make sure it goes
1271 newparams.push_back(ret.second);
1279 /* Update the parameters for FMODE with the new 'bounced' string */
1280 newparams[2] = modebounce;
1281 /* Only send it back the way it came, no need to send it anywhere else */
1282 DoOneToOne(ServerInstance->Config->ServerName,"FMODE",newparams,sourceserv);
1283 log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1287 log(DEBUG,"Allow modes, TS lower for sender");
1288 /* The server was ulined, but something iffy is up with the TS.
1289 * Sound the alarm bells!
1291 if ((Srv->IsUlined(sourceserv)) && (TS > ourTS))
1293 ServerInstance->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());
1295 /* Allow the mode, route it to either server or user command handling */
1297 Srv->SendMode(modelist,n,who);
1299 Srv->CallCommandHandler("MODE", modelist, n, who);
1301 /* HOT POTATO! PASS IT ON! */
1302 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1304 /* Are we supposed to free the userrec? */
1311 /* FTOPIC command */
1312 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1314 if (params.size() != 4)
1316 time_t ts = atoi(params[1].c_str());
1317 std::string nsource = source;
1319 chanrec* c = ServerInstance->FindChan(params[0]);
1322 if ((ts >= c->topicset) || (!*c->topic))
1324 std::string oldtopic = c->topic;
1325 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1326 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1328 /* if the topic text is the same as the current topic,
1329 * dont bother to send the TOPIC command out, just silently
1330 * update the set time and set nick.
1332 if (oldtopic != params[3])
1334 userrec* user = ServerInstance->FindNick(source);
1337 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1341 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1342 nsource = user->server;
1344 /* all done, send it on its way */
1345 params[3] = ":" + params[3];
1346 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1355 /* FJOIN, similar to unreal SJOIN */
1356 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1358 if (params.size() < 3)
1362 char modestring[MAXBUF];
1363 char* mode_users[127];
1364 memset(&mode_users,0,sizeof(mode_users));
1365 mode_users[0] = first;
1366 mode_users[1] = modestring;
1367 strcpy(modestring,"+");
1368 unsigned int modectr = 2;
1370 userrec* who = NULL;
1371 std::string channel = params[0];
1372 time_t TS = atoi(params[1].c_str());
1375 chanrec* chan = ServerInstance->FindChan(channel);
1380 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1382 /* default is a high value, which if we dont have this
1383 * channel will let the other side apply their modes.
1385 time_t ourTS = time(NULL)+600;
1386 chanrec* us = ServerInstance->FindChan(channel);
1392 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1394 /* do this first, so our mode reversals are correctly received by other servers
1395 * if there is a TS collision.
1397 DoOneToAllButSender(source,"FJOIN",params,source);
1399 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
1401 /* process one channel at a time, applying modes. */
1402 char* usr = (char*)params[usernum].c_str();
1403 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1404 * (is this even possible?) */
1407 char permissions = *usr;
1408 switch (permissions)
1412 mode_users[modectr++] = usr;
1413 strlcat(modestring,"o",MAXBUF);
1417 mode_users[modectr++] = usr;
1418 strlcat(modestring,"h",MAXBUF);
1422 mode_users[modectr++] = usr;
1423 strlcat(modestring,"v",MAXBUF);
1426 who = ServerInstance->FindNick(usr);
1429 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1430 if (modectr >= (MAXMODES-1))
1432 /* theres a mode for this user. push them onto the mode queue, and flush it
1433 * if there are more than MAXMODES to go.
1435 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
1437 /* We also always let u-lined clients win, no matter what the TS value */
1438 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1439 Srv->SendMode((const char**)mode_users,modectr,who);
1442 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1449 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1450 /* bouncy bouncy! */
1451 std::deque<std::string> params;
1452 /* modes are now being UNSET... */
1453 *mode_users[1] = '-';
1454 for (unsigned int x = 0; x < modectr; x++)
1458 params.push_back(ConvToStr(us->age));
1460 params.push_back(mode_users[x]);
1463 // tell everyone to bounce the modes. bad modes, bad!
1464 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
1466 strcpy(mode_users[1],"+");
1472 /* there werent enough modes built up to flush it during FJOIN,
1473 * or, there are a number left over. flush them out.
1475 if ((modectr > 2) && (who) && (us))
1479 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1480 Srv->SendMode((const char**)mode_users,modectr,who);
1483 log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1490 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1491 std::deque<std::string> params;
1492 *mode_users[1] = '-';
1493 for (unsigned int x = 0; x < modectr; x++)
1497 params.push_back(ConvToStr(us->age));
1499 params.push_back(mode_users[x]);
1501 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
1507 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1509 if (params.size() >= 2)
1511 chanrec* c = ServerInstance->FindChan(params[0]);
1514 time_t theirTS = atoi(params[1].c_str());
1515 time_t ourTS = c->age;
1516 if (ourTS >= theirTS)
1518 log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1523 DoOneToAllButSender(ServerInstance->Config->ServerName,"SYNCTS",params,source);
1528 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1530 if (params.size() < 8)
1532 if (params.size() > 8)
1534 this->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1537 // NICK age nick host dhost ident +modes ip :gecos
1539 time_t age = atoi(params[0].c_str());
1541 /* This used to have a pretty craq'y loop doing the same thing,
1542 * now we just let the STL do the hard work (more efficiently)
1544 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1546 const char* tempnick = params[1].c_str();
1547 log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1549 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1551 if (iter != this->Instance->clientlist.end())
1554 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);
1555 this->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1559 userrec* _new = new userrec(this->Instance);
1560 this->Instance->clientlist[tempnick] = _new;
1561 _new->fd = FD_MAGIC_NUMBER;
1562 strlcpy(_new->nick, tempnick,NICKMAX-1);
1563 strlcpy(_new->host, params[2].c_str(),63);
1564 strlcpy(_new->dhost, params[3].c_str(),63);
1565 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1566 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1567 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1568 _new->registered = REG_ALL;
1571 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1572 _new->modes[(*v)-65] = 1;
1574 if (params[6].find_first_of(":") != std::string::npos)
1575 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1577 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1579 ServerInstance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1581 params[7] = ":" + params[7];
1582 DoOneToAllButSender(source,"NICK",params,source);
1584 // Increment the Source Servers User Count..
1585 TreeServer* SourceServer = FindServer(source);
1588 log(DEBUG,"Found source server of %s",_new->nick);
1589 SourceServer->AddUserCount();
1595 /* Send one or more FJOINs for a channel of users.
1596 * If the length of a single line is more than 480-NICKMAX
1597 * in length, it is split over multiple lines.
1599 void SendFJoins(TreeServer* Current, chanrec* c)
1601 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1603 std::string individual_halfops = std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1605 size_t dlen, curlen;
1606 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",ServerInstance->Config->ServerName,c->name,(unsigned long)c->age);
1608 char* ptr = list + dlen;
1610 CUList *ulist = c->GetUsers();
1611 std::vector<userrec*> specific_halfop;
1612 std::vector<userrec*> specific_voice;
1613 std::string modes = "";
1614 std::string params = "";
1616 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1618 int x = c->GetStatusFlags(i->second);
1619 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1621 specific_halfop.push_back(i->second);
1623 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1625 specific_voice.push_back(i->second);
1633 else if (x & UCMODE_HOP)
1637 else if (x & UCMODE_VOICE)
1642 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s", n, i->second->nick);
1649 if (curlen > (480-NICKMAX))
1651 this->WriteLine(list);
1652 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",ServerInstance->Config->ServerName,c->name,(unsigned long)c->age);
1656 for (unsigned int y = 0; y < specific_voice.size(); y++)
1659 params.append(specific_voice[y]->nick).append(" ");
1660 //this->WriteLine(":"+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1662 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1665 params.append(specific_halfop[y]->nick).append(" ");
1666 //this->WriteLine(":"+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1672 this->WriteLine(list);
1673 for (unsigned int y = 0; y < specific_voice.size(); y++)
1676 params.append(specific_voice[y]->nick).append(" ");
1677 //this->WriteLine(":"+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +v "+specific_voice[y]->nick);
1679 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1682 params.append(specific_halfop[y]->nick).append(" ");
1683 //this->WriteLine(":"+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +h "+specific_halfop[y]->nick);
1686 //std::string modes = "";
1687 //std::string params = "";
1688 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1691 params.append(b->data).append(" ");
1693 /* XXX: Send each channel mode and its params -- we'll need a method for this in ModeHandler? */
1694 //FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1695 this->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1698 /* Send G, Q, Z and E lines */
1699 void SendXLines(TreeServer* Current)
1702 std::string n = ServerInstance->Config->ServerName;
1703 const char* sn = n.c_str();
1705 /* Yes, these arent too nice looking, but they get the job done */
1706 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++, iterations++)
1708 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);
1709 this->WriteLine(data);
1711 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++, iterations++)
1713 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);
1714 this->WriteLine(data);
1716 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++, iterations++)
1718 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);
1719 this->WriteLine(data);
1721 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++, iterations++)
1723 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);
1724 this->WriteLine(data);
1726 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++, iterations++)
1728 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);
1729 this->WriteLine(data);
1731 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++, iterations++)
1733 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);
1734 this->WriteLine(data);
1736 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++, iterations++)
1738 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);
1739 this->WriteLine(data);
1741 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++, iterations++)
1743 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);
1744 this->WriteLine(data);
1748 /* Send channel modes and topics */
1749 void SendChannelModes(TreeServer* Current)
1752 std::deque<std::string> list;
1754 std::string n = ServerInstance->Config->ServerName;
1755 const char* sn = n.c_str();
1756 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1758 SendFJoins(Current, c->second);
1759 if (*c->second->topic)
1761 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1762 this->WriteLine(data);
1764 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1766 c->second->GetExtList(list);
1767 for (unsigned int j = 0; j < list.size(); j++)
1769 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1774 /* send all users and their oper state/modes */
1775 void SendUsers(TreeServer* Current)
1778 std::deque<std::string> list;
1780 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1782 if (u->second->registered == REG_ALL)
1784 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);
1785 this->WriteLine(data);
1786 if (*u->second->oper)
1788 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1790 if (*u->second->awaymsg)
1792 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1794 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1796 u->second->GetExtList(list);
1797 for (unsigned int j = 0; j < list.size(); j++)
1799 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1805 /* This function is called when we want to send a netburst to a local
1806 * server. There is a set order we must do this, because for example
1807 * users require their servers to exist, and channels require their
1808 * users to exist. You get the idea.
1810 void DoBurst(TreeServer* s)
1812 std::string burst = "BURST "+ConvToStr(time(NULL));
1813 std::string endburst = "ENDBURST";
1814 // Because by the end of the netburst, it could be gone!
1815 std::string name = s->GetName();
1816 ServerInstance->WriteOpers("*** Bursting to \2"+name+"\2.");
1817 this->WriteLine(burst);
1818 /* send our version string */
1819 this->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1820 /* Send server tree */
1821 this->SendServers(TreeRoot,s,1);
1822 /* Send users and their oper status */
1824 /* Send everything else (channel modes, xlines etc) */
1825 this->SendChannelModes(s);
1826 this->SendXLines(s);
1827 FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1828 this->WriteLine(endburst);
1829 ServerInstance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1832 /* This function is called when we receive data from a remote
1833 * server. We buffer the data in a std::string (it doesnt stay
1834 * there for long), reading using InspSocket::Read() which can
1835 * read up to 16 kilobytes in one operation.
1837 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1838 * THE SOCKET OBJECT FOR US.
1840 virtual bool OnDataReady()
1842 char* data = this->Read();
1843 /* Check that the data read is a valid pointer and it has some content */
1846 this->in_buffer.append(data);
1847 /* While there is at least one new line in the buffer,
1848 * do something useful (we hope!) with it.
1850 while (in_buffer.find("\n") != std::string::npos)
1852 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1853 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1854 if (ret.find("\r") != std::string::npos)
1855 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1856 /* Process this one, abort if it
1857 * didnt return true.
1863 memset(result,0,1024);
1865 log(DEBUG,"Original string '%s'",ret.c_str());
1866 /* ERROR + CAPAB is still allowed unencryped */
1867 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1869 int nbytes = from64tobits(out, ret.c_str(), 1024);
1870 if ((nbytes > 0) && (nbytes < 1024))
1872 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1873 ctx_in->Decrypt(out, result, nbytes, 0);
1874 for (int t = 0; t < nbytes; t++)
1875 if (result[t] == '\7') result[t] = 0;
1880 if (!this->ProcessLine(ret))
1882 log(DEBUG,"ProcessLine says no!");
1888 /* EAGAIN returns an empty but non-NULL string, so this
1889 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1891 return (data && !*data);
1894 int WriteLine(std::string line)
1896 log(DEBUG,"OUT: %s",line.c_str());
1900 char result64[10240];
1901 if (this->keylength)
1903 // pad it to the key length
1904 int n = this->keylength - (line.length() % this->keylength);
1907 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);
1908 line.append(n,'\7');
1911 unsigned int ll = line.length();
1912 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1913 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1915 //int from64tobits(char *out, const char *in, int maxlen);
1917 return this->Write(line + "\r\n");
1920 /* Handle ERROR command */
1921 bool Error(std::deque<std::string> ¶ms)
1923 if (params.size() < 1)
1925 ServerInstance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1926 /* we will return false to cause the socket to close. */
1930 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
1932 /* Get the reply to a STATS query if it matches this servername,
1933 * and send it back as a load of PUSH queries
1935 if (params.size() > 1)
1937 if (Srv->MatchText(ServerInstance->Config->ServerName, params[1]))
1939 /* It's for our server */
1940 string_list results;
1941 userrec* source = ServerInstance->FindNick(prefix);
1944 std::deque<std::string> par;
1945 par.push_back(prefix);
1947 DoStats(*(params[0].c_str()), source, results);
1948 for (size_t i = 0; i < results.size(); i++)
1950 par[1] = "::" + results[i];
1951 DoOneToOne(ServerInstance->Config->ServerName, "PUSH",par, source->server);
1958 userrec* source = ServerInstance->FindNick(prefix);
1960 DoOneToOne(prefix, "STATS", params, params[1]);
1967 /* Because the core won't let users or even SERVERS set +o,
1968 * we use the OPERTYPE command to do this.
1970 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1972 if (params.size() != 1)
1974 log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1977 std::string opertype = params[0];
1978 userrec* u = ServerInstance->FindNick(prefix);
1981 u->modes[UM_OPERATOR] = 1;
1982 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1983 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1988 /* Because Andy insists that services-compatible servers must
1989 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1991 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1993 if (params.size() < 3)
1996 userrec* u = ServerInstance->FindNick(params[0]);
2000 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2003 std::deque<std::string> par;
2004 par.push_back(params[1]);
2005 /* This is not required as one is sent in OnUserPostNick below
2007 //DoOneToMany(u->nick,"NICK",par);
2008 if (!u->ForceNickChange(params[1].c_str()))
2010 userrec::QuitUser(this->Instance, u, "Nickname collision");
2013 u->age = atoi(params[2].c_str());
2019 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
2021 if (params.size() < 2)
2024 userrec* u = ServerInstance->FindNick(params[0]);
2028 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2029 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2034 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
2036 if (params.size() < 1)
2039 std::string servermask = params[0];
2041 if (Srv->MatchText(ServerInstance->Config->ServerName,servermask))
2043 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
2044 Srv->RehashServer();
2045 ReadConfiguration(false);
2047 DoOneToAllButSender(prefix,"REHASH",params,prefix);
2051 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
2053 if (params.size() != 2)
2056 std::string nick = params[0];
2057 userrec* u = ServerInstance->FindNick(prefix);
2058 userrec* who = ServerInstance->FindNick(nick);
2062 /* Prepend kill source, if we don't have one */
2063 std::string sourceserv = prefix;
2066 sourceserv = u->server;
2068 if (*(params[1].c_str()) != '[')
2070 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2072 std::string reason = params[1];
2073 params[1] = ":" + params[1];
2074 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2075 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2076 userrec::QuitUser(this->Instance,who,reason);
2081 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2083 if (params.size() < 1)
2086 if (params.size() == 1)
2088 TreeServer* ServerSource = FindServer(prefix);
2091 ServerSource->SetPingFlag();
2096 std::string forwardto = params[1];
2097 if (forwardto == ServerInstance->Config->ServerName)
2100 * this is a PONG for us
2101 * if the prefix is a user, check theyre local, and if they are,
2102 * dump the PONG reply back to their fd. If its a server, do nowt.
2103 * Services might want to send these s->s, but we dont need to yet.
2105 userrec* u = ServerInstance->FindNick(prefix);
2109 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2114 // not for us, pass it on :)
2115 DoOneToOne(prefix,"PONG",params,forwardto);
2122 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2124 if (params.size() < 3)
2127 TreeServer* ServerSource = FindServer(prefix);
2131 if (params[0] == "*")
2133 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2135 else if (*(params[0].c_str()) == '#')
2137 chanrec* c = ServerInstance->FindChan(params[0]);
2140 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2143 else if (*(params[0].c_str()) != '#')
2145 userrec* u = ServerInstance->FindNick(params[0]);
2148 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2153 params[2] = ":" + params[2];
2154 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2158 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2160 if (params.size() < 1)
2163 TreeServer* ServerSource = FindServer(prefix);
2167 ServerSource->SetVersion(params[0]);
2169 params[0] = ":" + params[0];
2170 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2174 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2176 if (params.size() < 1)
2179 userrec* u = ServerInstance->FindNick(prefix);
2183 u->ChangeDisplayedHost(params[0].c_str());
2184 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2189 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2191 if (params.size() < 6)
2194 bool propogate = false;
2196 switch (*(params[0].c_str()))
2199 propogate = add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2200 zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2203 propogate = add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2204 qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2207 propogate = add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2208 eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2211 propogate = add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2212 gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2215 propogate = add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2218 /* Just in case... */
2219 ServerInstance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2224 /* Send it on its way */
2227 if (atoi(params[4].c_str()))
2229 ServerInstance->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());
2233 ServerInstance->WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2235 params[5] = ":" + params[5];
2236 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2238 if (!this->bursting)
2240 log(DEBUG,"Applying lines...");
2241 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2246 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2248 if (params.size() < 1)
2251 userrec* u = ServerInstance->FindNick(prefix);
2255 u->ChangeName(params[0].c_str());
2256 params[0] = ":" + params[0];
2257 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2262 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2264 if (params.size() < 1)
2267 log(DEBUG,"In IDLE command");
2268 userrec* u = ServerInstance->FindNick(prefix);
2272 log(DEBUG,"USER EXISTS: %s",u->nick);
2273 // an incoming request
2274 if (params.size() == 1)
2276 userrec* x = ServerInstance->FindNick(params[0]);
2277 if ((x) && (IS_LOCAL(x)))
2279 userrec* x = ServerInstance->FindNick(params[0]);
2280 log(DEBUG,"Got IDLE");
2281 char signon[MAXBUF];
2283 log(DEBUG,"Sending back IDLE 3");
2284 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2285 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2286 std::deque<std::string> par;
2287 par.push_back(prefix);
2288 par.push_back(signon);
2289 par.push_back(idle);
2290 // ours, we're done, pass it BACK
2291 DoOneToOne(params[0],"IDLE",par,u->server);
2295 // not ours pass it on
2296 DoOneToOne(prefix,"IDLE",params,x->server);
2299 else if (params.size() == 3)
2301 std::string who_did_the_whois = params[0];
2302 userrec* who_to_send_to = ServerInstance->FindNick(who_did_the_whois);
2303 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2305 log(DEBUG,"Got final IDLE");
2306 // an incoming reply to a whois we sent out
2307 std::string nick_whoised = prefix;
2308 unsigned long signon = atoi(params[1].c_str());
2309 unsigned long idle = atoi(params[2].c_str());
2310 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2311 do_whois(who_to_send_to,u,signon,idle,nick_whoised.c_str());
2315 // not ours, pass it on
2316 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2323 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2325 if (params.size() < 2)
2328 userrec* u = ServerInstance->FindNick(params[0]);
2335 u->Write(params[1]);
2339 // continue the raw onwards
2340 params[1] = ":" + params[1];
2341 DoOneToOne(prefix,"PUSH",params,u->server);
2346 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2348 // :source.server TIME remote.server sendernick
2349 // :remote.server TIME source.server sendernick TS
2350 if (params.size() == 2)
2352 // someone querying our time?
2353 if (ServerInstance->Config->ServerName == params[0])
2355 userrec* u = ServerInstance->FindNick(params[1]);
2359 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2360 params.push_back(curtime);
2362 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,params[0]);
2367 // not us, pass it on
2368 userrec* u = ServerInstance->FindNick(params[1]);
2370 DoOneToOne(prefix,"TIME",params,params[0]);
2373 else if (params.size() == 3)
2375 // a response to a previous TIME
2376 userrec* u = ServerInstance->FindNick(params[1]);
2377 if ((u) && (IS_LOCAL(u)))
2379 time_t rawtime = atol(params[2].c_str());
2380 struct tm * timeinfo;
2381 timeinfo = localtime(&rawtime);
2383 snprintf(tms,26,"%s",asctime(timeinfo));
2385 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2390 DoOneToOne(prefix,"TIME",params,u->server);
2396 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2398 if (params.size() < 1)
2401 if (params.size() == 1)
2403 std::string stufftobounce = params[0];
2404 this->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PONG "+stufftobounce);
2409 std::string forwardto = params[1];
2410 if (forwardto == ServerInstance->Config->ServerName)
2412 // this is a ping for us, send back PONG to the requesting server
2413 params[1] = params[0];
2414 params[0] = forwardto;
2415 DoOneToOne(forwardto,"PONG",params,params[1]);
2419 // not for us, pass it on :)
2420 DoOneToOne(prefix,"PING",params,forwardto);
2426 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2428 if (params.size() < 4)
2431 std::string servername = params[0];
2432 std::string password = params[1];
2433 // hopcount is not used for a remote server, we calculate this ourselves
2434 std::string description = params[3];
2435 TreeServer* ParentOfThis = FindServer(prefix);
2439 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2442 TreeServer* CheckDupe = FindServer(servername);
2445 this->WriteLine("ERROR :Server "+servername+" already exists!");
2446 ServerInstance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2449 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
2450 ParentOfThis->AddChild(Node);
2451 params[3] = ":" + params[3];
2452 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2453 ServerInstance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2457 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2459 if (params.size() < 4)
2462 irc::string servername = params[0].c_str();
2463 std::string sname = params[0];
2464 std::string password = params[1];
2465 int hops = atoi(params[2].c_str());
2469 this->WriteLine("ERROR :Server too far away for authentication");
2470 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2473 std::string description = params[3];
2474 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2476 if ((x->Name == servername) && (x->RecvPass == password))
2478 TreeServer* CheckDupe = FindServer(sname);
2481 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2482 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2485 // Begin the sync here. this kickstarts the
2486 // other side, waiting in WAIT_AUTH_2 state,
2487 // into starting their burst, as it shows
2488 // that we're happy.
2489 this->LinkState = CONNECTED;
2490 // we should add the details of this server now
2491 // to the servers tree, as a child of the root
2493 TreeServer* Node = new TreeServer(sname,description,TreeRoot,this);
2494 TreeRoot->AddChild(Node);
2495 params[3] = ":" + params[3];
2496 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2497 this->bursting = true;
2498 this->DoBurst(Node);
2502 this->WriteLine("ERROR :Invalid credentials");
2503 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2507 bool Inbound_Server(std::deque<std::string> ¶ms)
2509 if (params.size() < 4)
2512 irc::string servername = params[0].c_str();
2513 std::string sname = params[0];
2514 std::string password = params[1];
2515 int hops = atoi(params[2].c_str());
2519 this->WriteLine("ERROR :Server too far away for authentication");
2520 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2523 std::string description = params[3];
2524 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2526 if ((x->Name == servername) && (x->RecvPass == password))
2528 TreeServer* CheckDupe = FindServer(sname);
2531 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2532 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2535 /* If the config says this link is encrypted, but the remote side
2536 * hasnt bothered to send the AES command before SERVER, then we
2537 * boot them off as we MUST have this connection encrypted.
2539 if ((x->EncryptionKey != "") && (!this->ctx_in))
2541 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2542 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2545 ServerInstance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2546 this->InboundServerName = sname;
2547 this->InboundDescription = description;
2548 // this is good. Send our details: Our server name and description and hopcount of 0,
2549 // along with the sendpass from this block.
2550 this->WriteLine(std::string("SERVER ")+ServerInstance->Config->ServerName+" "+x->SendPass+" 0 :"+ServerInstance->Config->ServerDesc);
2551 // move to the next state, we are now waiting for THEM.
2552 this->LinkState = WAIT_AUTH_2;
2556 this->WriteLine("ERROR :Invalid credentials");
2557 ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2561 void Split(std::string line, std::deque<std::string> &n)
2564 irc::tokenstream tokens(line);
2566 while ((param = tokens.GetToken()) != "")
2571 bool ProcessLine(std::string line)
2573 std::deque<std::string> params;
2574 irc::string command;
2580 line = line.substr(0, line.find_first_of("\r\n"));
2582 log(DEBUG,"IN: %s", line.c_str());
2584 this->Split(line.c_str(),params);
2586 if ((params[0][0] == ':') && (params.size() > 1))
2588 prefix = params[0].substr(1);
2592 command = params[0].c_str();
2595 if ((!this->ctx_in) && (command == "AES"))
2597 std::string sserv = params[0];
2598 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2600 if ((x->EncryptionKey != "") && (x->Name == sserv))
2602 this->InitAES(x->EncryptionKey,sserv);
2608 else if ((this->ctx_in) && (command == "AES"))
2610 ServerInstance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2613 switch (this->LinkState)
2618 // Waiting for SERVER command from remote server. Server initiating
2619 // the connection sends the first SERVER command, listening server
2620 // replies with theirs if its happy, then if the initiator is happy,
2621 // it starts to send its net sync, which starts the merge, otherwise
2622 // it sends an ERROR.
2623 if (command == "PASS")
2625 /* Silently ignored */
2627 else if (command == "SERVER")
2629 return this->Inbound_Server(params);
2631 else if (command == "ERROR")
2633 return this->Error(params);
2635 else if (command == "USER")
2637 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2640 else if (command == "CAPAB")
2642 return this->Capab(params);
2644 else if ((command == "U") || (command == "S"))
2646 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2651 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2656 // Waiting for start of other side's netmerge to say they liked our
2658 if (command == "SERVER")
2660 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2664 else if ((command == "U") || (command == "S"))
2666 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2669 else if (command == "BURST")
2673 /* If a time stamp is provided, try and check syncronization */
2674 time_t THEM = atoi(params[0].c_str());
2675 long delta = THEM-time(NULL);
2676 if ((delta < -600) || (delta > 600))
2678 ServerInstance->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));
2679 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2682 else if ((delta < -60) || (delta > 60))
2684 ServerInstance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2687 this->LinkState = CONNECTED;
2688 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
2689 TreeRoot->AddChild(Node);
2691 params.push_back(InboundServerName);
2692 params.push_back("*");
2693 params.push_back("1");
2694 params.push_back(":"+InboundDescription);
2695 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2696 this->bursting = true;
2697 this->DoBurst(Node);
2699 else if (command == "ERROR")
2701 return this->Error(params);
2703 else if (command == "CAPAB")
2705 return this->Capab(params);
2710 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2714 if (command == "SERVER")
2716 // another server we connected to, which was in WAIT_AUTH_1 state,
2717 // has just sent us their credentials. If we get this far, theyre
2718 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2719 // if we're happy with this, we should send our netburst which
2720 // kickstarts the merge.
2721 return this->Outbound_Reply_Server(params);
2723 else if (command == "ERROR")
2725 return this->Error(params);
2729 // This is the 'authenticated' state, when all passwords
2730 // have been exchanged and anything past this point is taken
2735 std::string direction = prefix;
2736 userrec* t = ServerInstance->FindNick(prefix);
2739 direction = t->server;
2741 TreeServer* route_back_again = BestRouteTo(direction);
2742 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2744 if (route_back_again)
2745 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2750 * When there is activity on the socket, reset the ping counter so
2751 * that we're not wasting bandwidth pinging an active server.
2753 route_back_again->SetNextPingTime(time(NULL) + 120);
2754 route_back_again->SetPingFlag();
2757 if (command == "SVSMODE")
2759 /* Services expects us to implement
2760 * SVSMODE. In inspircd its the same as
2765 std::string target = "";
2766 /* Yes, know, this is a mess. Its reasonably fast though as we're
2767 * working with std::string here.
2769 if ((command == "NICK") && (params.size() > 1))
2771 return this->IntroduceClient(prefix,params);
2773 else if (command == "FJOIN")
2775 return this->ForceJoin(prefix,params);
2777 else if (command == "STATS")
2779 return this->Stats(prefix, params);
2781 else if (command == "SERVER")
2783 return this->RemoteServer(prefix,params);
2785 else if (command == "ERROR")
2787 return this->Error(params);
2789 else if (command == "OPERTYPE")
2791 return this->OperType(prefix,params);
2793 else if (command == "FMODE")
2795 return this->ForceMode(prefix,params);
2797 else if (command == "KILL")
2799 return this->RemoteKill(prefix,params);
2801 else if (command == "FTOPIC")
2803 return this->ForceTopic(prefix,params);
2805 else if (command == "REHASH")
2807 return this->RemoteRehash(prefix,params);
2809 else if (command == "METADATA")
2811 return this->MetaData(prefix,params);
2813 else if (command == "PING")
2816 * We just got a ping from a server that's bursting.
2817 * This can't be right, so set them to not bursting, and
2818 * apply their lines.
2822 this->bursting = false;
2823 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2827 prefix = this->GetName();
2829 return this->LocalPing(prefix,params);
2831 else if (command == "PONG")
2834 * We just got a pong from a server that's bursting.
2835 * This can't be right, so set them to not bursting, and
2836 * apply their lines.
2840 this->bursting = false;
2841 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2845 prefix = this->GetName();
2847 return this->LocalPong(prefix,params);
2849 else if (command == "VERSION")
2851 return this->ServerVersion(prefix,params);
2853 else if (command == "FHOST")
2855 return this->ChangeHost(prefix,params);
2857 else if (command == "FNAME")
2859 return this->ChangeName(prefix,params);
2861 else if (command == "ADDLINE")
2863 return this->AddLine(prefix,params);
2865 else if (command == "SVSNICK")
2869 prefix = this->GetName();
2871 return this->ForceNick(prefix,params);
2873 else if (command == "IDLE")
2875 return this->Whois(prefix,params);
2877 else if (command == "PUSH")
2879 return this->Push(prefix,params);
2881 else if (command == "TIME")
2883 return this->Time(prefix,params);
2885 else if ((command == "KICK") && (IsServer(prefix)))
2887 std::string sourceserv = this->myhost;
2888 if (params.size() == 3)
2890 userrec* user = ServerInstance->FindNick(params[1]);
2891 chanrec* chan = ServerInstance->FindChan(params[0]);
2894 if (!chan->ServerKickUser(user, params[2].c_str(), false))
2895 /* Yikes, the channels gone! */
2899 if (this->InboundServerName != "")
2901 sourceserv = this->InboundServerName;
2903 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2905 else if (command == "SVSJOIN")
2909 prefix = this->GetName();
2911 return this->ServiceJoin(prefix,params);
2913 else if (command == "SQUIT")
2915 if (params.size() == 2)
2917 this->Squit(FindServer(params[0]),params[1]);
2921 else if (command == "ENDBURST")
2923 this->bursting = false;
2924 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2925 std::string sourceserv = this->myhost;
2926 if (this->InboundServerName != "")
2928 sourceserv = this->InboundServerName;
2930 ServerInstance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2935 // not a special inter-server command.
2936 // Emulate the actual user doing the command,
2937 // this saves us having a huge ugly parser.
2938 userrec* who = ServerInstance->FindNick(prefix);
2939 std::string sourceserv = this->myhost;
2940 if (this->InboundServerName != "")
2942 sourceserv = this->InboundServerName;
2946 if ((command == "NICK") && (params.size() > 0))
2948 /* On nick messages, check that the nick doesnt
2949 * already exist here. If it does, kill their copy,
2952 userrec* x = ServerInstance->FindNick(params[0]);
2953 if ((x) && (x != who))
2955 std::deque<std::string> p;
2956 p.push_back(params[0]);
2957 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2958 DoOneToMany(ServerInstance->Config->ServerName,"KILL",p);
2960 p.push_back(prefix);
2961 p.push_back("Nickname collision");
2962 DoOneToMany(ServerInstance->Config->ServerName,"KILL",p);
2963 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2964 userrec* y = ServerInstance->FindNick(prefix);
2967 userrec::QuitUser(this->Instance,y,"Nickname collision");
2969 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2973 target = who->server;
2974 const char* strparams[127];
2975 for (unsigned int q = 0; q < params.size(); q++)
2977 strparams[q] = params[q].c_str();
2979 if (!Srv->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2981 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2987 // its not a user. Its either a server, or somethings screwed up.
2988 if (IsServer(prefix))
2990 target = ServerInstance->Config->ServerName;
2994 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2998 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3007 virtual std::string GetName()
3009 std::string sourceserv = this->myhost;
3010 if (this->InboundServerName != "")
3012 sourceserv = this->InboundServerName;
3017 virtual void OnTimeout()
3019 if (this->LinkState == CONNECTING)
3021 ServerInstance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
3025 virtual void OnClose()
3027 // Connection closed.
3028 // If the connection is fully up (state CONNECTED)
3029 // then propogate a netsplit to all peers.
3030 std::string quitserver = this->myhost;
3031 if (this->InboundServerName != "")
3033 quitserver = this->InboundServerName;
3035 TreeServer* s = FindServer(quitserver);
3038 Squit(s,"Remote host closed the connection");
3040 ServerInstance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
3043 virtual int OnIncomingConnection(int newsock, char* ip)
3045 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3046 * or discovering if this port is the server port, we don't allow connections from any
3047 * IPs for which we don't have a link block.
3051 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
3054 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3055 if (MatchCIDR(ip, (*i).c_str()))
3060 ServerInstance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3065 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3071 /** This class is used to resolve server hostnames during /connect and autoconnect.
3072 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3073 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3074 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3075 * will have an IP address which we can then use to continue our connection.
3077 class ServernameResolver : public Resolver
3080 /** A copy of the Link tag info for what we're connecting to.
3081 * We take a copy, rather than using a pointer, just in case the
3082 * admin takes the tag away and rehashes while the domain is resolving.
3086 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3088 /* Nothing in here, folks */
3091 void OnLookupComplete(const std::string &result)
3093 /* Initiate the connection, now that we have an IP to use.
3094 * Passing a hostname directly to InspSocket causes it to
3095 * just bail and set its FD to -1.
3097 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3098 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3100 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3101 if (newsocket->GetFd() > -1)
3104 Srv->AddSocket(newsocket);
3108 /* Something barfed, show the opers */
3109 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3115 void OnError(ResolverError e, const std::string &errormessage)
3118 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3122 class SecurityIPResolver : public Resolver
3127 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3131 void OnLookupComplete(const std::string &result)
3133 log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3134 ValidIPs.push_back(result);
3137 void OnError(ResolverError e, const std::string &errormessage)
3139 log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3143 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3145 for (unsigned int c = 0; c < list.size(); c++)
3147 if (list[c] == server)
3152 list.push_back(server);
3155 // returns a list of DIRECT servernames for a specific channel
3156 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3158 CUList *ulist = c->GetUsers();
3159 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3161 if (i->second->fd < 0)
3163 TreeServer* best = BestRouteTo(i->second->server);
3165 AddThisServer(best,list);
3171 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3173 TreeServer* omitroute = BestRouteTo(omit);
3174 if ((command == "NOTICE") || (command == "PRIVMSG"))
3176 if (params.size() >= 2)
3179 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3181 params[0] = params[0].substr(1, params[0].length()-1);
3183 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3185 // special routing for private messages/notices
3186 userrec* d = ServerInstance->FindNick(params[0]);
3189 std::deque<std::string> par;
3190 par.push_back(params[0]);
3191 par.push_back(":"+params[1]);
3192 DoOneToOne(prefix,command.c_str(),par,d->server);
3196 else if (*(params[0].c_str()) == '$')
3198 std::deque<std::string> par;
3199 par.push_back(params[0]);
3200 par.push_back(":"+params[1]);
3201 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3206 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3207 chanrec* c = ServerInstance->FindChan(params[0]);
3210 std::deque<TreeServer*> list;
3211 GetListOfServersForChannel(c,list);
3212 log(DEBUG,"Got a list of %d servers",list.size());
3213 unsigned int lsize = list.size();
3214 for (unsigned int i = 0; i < lsize; i++)
3216 TreeSocket* Sock = list[i]->GetSocket();
3217 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3219 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3220 Sock->WriteLine(data);
3228 unsigned int items = TreeRoot->ChildCount();
3229 for (unsigned int x = 0; x < items; x++)
3231 TreeServer* Route = TreeRoot->GetChild(x);
3232 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3234 TreeSocket* Sock = Route->GetSocket();
3235 Sock->WriteLine(data);
3241 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3243 TreeServer* omitroute = BestRouteTo(omit);
3244 std::string FullLine = ":" + prefix + " " + command;
3245 unsigned int words = params.size();
3246 for (unsigned int x = 0; x < words; x++)
3248 FullLine = FullLine + " " + params[x];
3250 unsigned int items = TreeRoot->ChildCount();
3251 for (unsigned int x = 0; x < items; x++)
3253 TreeServer* Route = TreeRoot->GetChild(x);
3254 // Send the line IF:
3255 // The route has a socket (its a direct connection)
3256 // The route isnt the one to be omitted
3257 // The route isnt the path to the one to be omitted
3258 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3260 TreeSocket* Sock = Route->GetSocket();
3261 Sock->WriteLine(FullLine);
3267 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3269 std::string FullLine = ":" + prefix + " " + command;
3270 unsigned int words = params.size();
3271 for (unsigned int x = 0; x < words; x++)
3273 FullLine = FullLine + " " + params[x];
3275 unsigned int items = TreeRoot->ChildCount();
3276 for (unsigned int x = 0; x < items; x++)
3278 TreeServer* Route = TreeRoot->GetChild(x);
3279 if (Route->GetSocket())
3281 TreeSocket* Sock = Route->GetSocket();
3282 Sock->WriteLine(FullLine);
3288 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3290 TreeServer* Route = BestRouteTo(target);
3293 std::string FullLine = ":" + prefix + " " + command;
3294 unsigned int words = params.size();
3295 for (unsigned int x = 0; x < words; x++)
3297 FullLine = FullLine + " " + params[x];
3299 if (Route->GetSocket())
3301 TreeSocket* Sock = Route->GetSocket();
3302 Sock->WriteLine(FullLine);
3312 std::vector<TreeSocket*> Bindings;
3314 void ReadConfiguration(bool rebind)
3316 Conf = new ConfigReader;
3319 for (int j =0; j < Conf->Enumerate("bind"); j++)
3321 std::string Type = Conf->ReadValue("bind","type",j);
3322 std::string IP = Conf->ReadValue("bind","address",j);
3323 long Port = Conf->ReadInteger("bind","port",j,true);
3324 if (Type == "servers")
3330 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3331 if (listener->GetState() == I_LISTENING)
3333 Srv->AddSocket(listener);
3334 Bindings.push_back(listener);
3338 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3345 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3346 HideULines = Conf->ReadFlag("options","hideulines",0);
3349 for (int j =0; j < Conf->Enumerate("link"); j++)
3352 std::string Allow = Conf->ReadValue("link","allowmask",j);
3353 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3354 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3355 L.Port = Conf->ReadInteger("link","port",j,true);
3356 L.SendPass = Conf->ReadValue("link","sendpass",j);
3357 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3358 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3359 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3360 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3361 L.NextConnectTime = time(NULL) + L.AutoConnect;
3362 /* Bugfix by brain, do not allow people to enter bad configurations */
3363 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3365 ValidIPs.push_back(L.IPAddr);
3368 ValidIPs.push_back(Allow);
3370 /* Needs resolving */
3372 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3376 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3377 Srv->AddResolver(sr);
3379 catch (ModuleException& e)
3381 log(DEBUG,"Error in resolver: %s",e.GetReason());
3385 LinkBlocks.push_back(L);
3386 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3392 log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3394 else if (L.RecvPass == "")
3396 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3398 else if (L.SendPass == "")
3400 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3402 else if (L.Name == "")
3404 log(DEFAULT,"Invalid configuration, link tag without a name!");
3408 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3416 class ModuleSpanningTree : public Module
3418 std::vector<TreeSocket*> Bindings;
3421 unsigned int max_local;
3422 unsigned int max_global;
3423 cmd_rconnect* command_rconnect;
3427 ModuleSpanningTree(Server* Me)
3428 : Module::Module(Me), max_local(0), max_global(0)
3433 // Create the root of the tree
3434 TreeRoot = new TreeServer(ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3436 ReadConfiguration(true);
3438 command_rconnect = new cmd_rconnect(this);
3439 Srv->AddCommand(command_rconnect);
3442 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3444 std::string Parent = TreeRoot->GetName();
3445 if (Current->GetParent())
3447 Parent = Current->GetParent()->GetName();
3449 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3451 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3455 ShowLinks(Current->GetChild(q),user,hops+1);
3460 ShowLinks(Current->GetChild(q),user,hops+1);
3463 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3464 if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
3466 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());
3469 int CountLocalServs()
3471 return TreeRoot->ChildCount();
3476 return serverlist.size();
3479 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3481 ShowLinks(TreeRoot,user,0);
3482 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3486 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3488 unsigned int n_users = ServerInstance->usercnt();
3490 /* Only update these when someone wants to see them, more efficient */
3491 if ((unsigned int)ServerInstance->local_count() > max_local)
3492 max_local = ServerInstance->local_count();
3493 if (n_users > max_global)
3494 max_global = n_users;
3496 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->usercount_invisible(),ServerInstance->usercount_invisible(),this->CountServs());
3497 if (ServerInstance->usercount_opers())
3498 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->usercount_opers());
3499 if (ServerInstance->usercount_unknown())
3500 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->usercount_unknown());
3501 if (ServerInstance->chancount())
3502 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->chancount());
3503 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->local_count(),this->CountLocalServs());
3504 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->local_count(),max_local);
3505 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3509 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3511 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3515 for (int t = 0; t < depth; t++)
3517 matrix[line][t] = ' ';
3520 // For Aligning, we need to work out exactly how deep this thing is, and produce
3521 // a 'Spacer' String to compensate.
3524 memset(spacer,' ',40);
3525 if ((40 - Current->GetName().length() - depth) > 1) {
3526 spacer[40 - Current->GetName().length() - depth] = '\0';
3535 if (ServerInstance->clientlist.size() == 0) {
3536 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3541 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3543 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3544 totusers += Current->GetUserCount();
3546 strlcpy(&matrix[line][depth],text,80);
3548 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3550 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3554 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3559 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3565 int HandleStats(const char** parameters, int pcnt, userrec* user)
3569 /* Remote STATS, the server is within the 2nd parameter */
3570 std::deque<std::string> params;
3571 params.push_back(parameters[0]);
3572 params.push_back(parameters[1]);
3573 /* Send it out remotely, generate no reply yet */
3574 TreeServer* s = FindServerMask(parameters[1]);
3577 params[1] = s->GetName();
3578 DoOneToOne(user->nick, "STATS", params, s->GetName());
3582 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3589 // Ok, prepare to be confused.
3590 // After much mulling over how to approach this, it struck me that
3591 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3592 // keeping track of a ton of ascii characters, and line by line
3593 // under recursion working out where to place them using multiplications
3594 // and divisons, we instead render the map onto a backplane of characters
3595 // (a character matrix), then draw the branches as a series of "L" shapes
3596 // from the nodes. This is not only friendlier on CPU it uses less stack.
3598 void HandleMap(const char** parameters, int pcnt, userrec* user)
3600 // This array represents a virtual screen which we will
3601 // "scratch" draw to, as the console device of an irc
3602 // client does not provide for a proper terminal.
3604 float totservers = 0;
3605 char matrix[128][80];
3606 for (unsigned int t = 0; t < 128; t++)
3608 matrix[t][0] = '\0';
3611 // The only recursive bit is called here.
3612 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3613 // Process each line one by one. The algorithm has a limit of
3614 // 128 servers (which is far more than a spanning tree should have
3615 // anyway, so we're ok). This limit can be raised simply by making
3616 // the character matrix deeper, 128 rows taking 10k of memory.
3617 for (int l = 1; l < line; l++)
3619 // scan across the line looking for the start of the
3620 // servername (the recursive part of the algorithm has placed
3621 // the servers at indented positions depending on what they
3623 int first_nonspace = 0;
3624 while (matrix[l][first_nonspace] == ' ')
3629 // Draw the `- (corner) section: this may be overwritten by
3630 // another L shape passing along the same vertical pane, becoming
3631 // a |- (branch) section instead.
3632 matrix[l][first_nonspace] = '-';
3633 matrix[l][first_nonspace-1] = '`';
3635 // Draw upwards until we hit the parent server, causing possibly
3636 // other corners (`-) to become branches (|-)
3637 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3639 matrix[l2][first_nonspace-1] = '|';
3643 // dump the whole lot to the user. This is the easy bit, honest.
3644 for (int t = 0; t < line; t++)
3646 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3648 float avg_users = totusers / totservers;
3649 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);
3650 user->WriteServ("007 %s :End of /MAP",user->nick);
3654 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3656 TreeServer* s = FindServerMask(parameters[0]);
3661 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3664 TreeSocket* sock = s->GetSocket();
3667 log(DEBUG,"Splitting server %s",s->GetName().c_str());
3668 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3669 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3670 Srv->RemoveSocket(sock);
3674 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3679 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3684 int HandleTime(const char** parameters, int pcnt, userrec* user)
3686 if ((IS_LOCAL(user)) && (pcnt))
3688 TreeServer* found = FindServerMask(parameters[0]);
3691 // we dont' override for local server
3692 if (found == TreeRoot)
3695 std::deque<std::string> params;
3696 params.push_back(found->GetName());
3697 params.push_back(user->nick);
3698 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3702 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3708 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3710 if ((IS_LOCAL(user)) && (pcnt > 1))
3712 userrec* remote = ServerInstance->FindNick(parameters[1]);
3713 if ((remote) && (remote->fd < 0))
3715 std::deque<std::string> params;
3716 params.push_back(parameters[1]);
3717 DoOneToOne(user->nick,"IDLE",params,remote->server);
3722 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3723 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3730 void DoPingChecks(time_t curtime)
3732 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3734 TreeServer* serv = TreeRoot->GetChild(j);
3735 TreeSocket* sock = serv->GetSocket();
3738 if (curtime >= serv->NextPingTime())
3740 if (serv->AnsweredLastPing())
3742 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3743 serv->SetNextPingTime(curtime + 120);
3747 // they didnt answer, boot them
3748 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3749 sock->Squit(serv,"Ping timeout");
3750 Srv->RemoveSocket(sock);
3758 void AutoConnectServers(time_t curtime)
3760 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3762 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3764 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3765 x->NextConnectTime = curtime + x->AutoConnect;
3766 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3769 // an autoconnected server is not connected. Check if its time to connect it
3770 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3774 /* Do we already have an IP? If so, no need to resolve it. */
3775 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3777 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3778 if (newsocket->GetFd() > -1)
3780 Srv->AddSocket(newsocket);
3784 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3792 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3793 Srv->AddResolver(snr);
3795 catch (ModuleException& e)
3797 log(DEBUG,"Error in resolver: %s",e.GetReason());
3806 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3808 // we've already checked if pcnt > 0, so this is safe
3809 TreeServer* found = FindServerMask(parameters[0]);
3812 std::string Version = found->GetVersion();
3813 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3814 if (found == TreeRoot)
3816 std::stringstream out(ServerInstance->Config->data005);
3817 std::string token = "";
3818 std::string line5 = "";
3819 int token_counter = 0;
3824 line5 = line5 + token + " ";
3827 if ((token_counter >= 13) || (out.eof() == true))
3829 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3838 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3843 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3845 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3847 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
3849 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3852 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);
3855 /* Do we already have an IP? If so, no need to resolve it. */
3856 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3858 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3859 if (newsocket->GetFd() > -1)
3861 Srv->AddSocket(newsocket);
3865 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3873 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
3874 Srv->AddResolver(snr);
3876 catch (ModuleException& e)
3878 log(DEBUG,"Error in resolver: %s",e.GetReason());
3885 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());
3890 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3894 virtual int OnStats(char statschar, userrec* user, string_list &results)
3896 if (statschar == 'c')
3898 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3900 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');
3901 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
3903 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
3904 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);
3910 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3912 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3916 if (command == "CONNECT")
3918 return this->HandleConnect(parameters,pcnt,user);
3920 else if (command == "STATS")
3922 return this->HandleStats(parameters,pcnt,user);
3924 else if (command == "SQUIT")
3926 return this->HandleSquit(parameters,pcnt,user);
3928 else if (command == "MAP")
3930 this->HandleMap(parameters,pcnt,user);
3933 else if ((command == "TIME") && (pcnt > 0))
3935 return this->HandleTime(parameters,pcnt,user);
3937 else if (command == "LUSERS")
3939 this->HandleLusers(parameters,pcnt,user);
3942 else if (command == "LINKS")
3944 this->HandleLinks(parameters,pcnt,user);
3947 else if (command == "WHOIS")
3952 return this->HandleRemoteWhois(parameters,pcnt,user);
3955 else if ((command == "VERSION") && (pcnt > 0))
3957 this->HandleVersion(parameters,pcnt,user);
3960 else if (Srv->IsValidModuleCommand(command, pcnt, user))
3962 // this bit of code cleverly routes all module commands
3963 // to all remote severs *automatically* so that modules
3964 // can just handle commands locally, without having
3965 // to have any special provision in place for remote
3966 // commands and linking protocols.
3967 std::deque<std::string> params;
3969 for (int j = 0; j < pcnt; j++)
3971 if (strchr(parameters[j],' '))
3973 params.push_back(":" + std::string(parameters[j]));
3977 params.push_back(std::string(parameters[j]));
3980 log(DEBUG,"Globally route '%s'",command.c_str());
3981 DoOneToMany(user->nick,command,params);
3986 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3988 TreeServer* s = FindServer(servername);
3991 description = s->GetDesc();
3995 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3997 if (IS_LOCAL(source))
3999 std::deque<std::string> params;
4000 params.push_back(dest->nick);
4001 params.push_back(channel->name);
4002 DoOneToMany(source->nick,"INVITE",params);
4006 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4008 std::deque<std::string> params;
4009 params.push_back(chan->name);
4010 params.push_back(":"+topic);
4011 DoOneToMany(user->nick,"TOPIC",params);
4014 virtual void OnWallops(userrec* user, const std::string &text)
4018 std::deque<std::string> params;
4019 params.push_back(":"+text);
4020 DoOneToMany(user->nick,"WALLOPS",params);
4024 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4026 if (target_type == TYPE_USER)
4028 userrec* d = (userrec*)dest;
4029 if ((d->fd < 0) && (IS_LOCAL(user)))
4031 std::deque<std::string> params;
4033 params.push_back(d->nick);
4034 params.push_back(":"+text);
4035 DoOneToOne(user->nick,"NOTICE",params,d->server);
4038 else if (target_type == TYPE_CHANNEL)
4042 chanrec *c = (chanrec*)dest;
4043 std::string cname = c->name;
4045 cname = status + cname;
4046 std::deque<TreeServer*> list;
4047 GetListOfServersForChannel(c,list);
4048 unsigned int ucount = list.size();
4049 for (unsigned int i = 0; i < ucount; i++)
4051 TreeSocket* Sock = list[i]->GetSocket();
4053 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4057 else if (target_type == TYPE_SERVER)
4061 char* target = (char*)dest;
4062 std::deque<std::string> par;
4063 par.push_back(target);
4064 par.push_back(":"+text);
4065 DoOneToMany(user->nick,"NOTICE",par);
4070 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4072 if (target_type == TYPE_USER)
4074 // route private messages which are targetted at clients only to the server
4075 // which needs to receive them
4076 userrec* d = (userrec*)dest;
4077 if ((d->fd < 0) && (IS_LOCAL(user)))
4079 std::deque<std::string> params;
4081 params.push_back(d->nick);
4082 params.push_back(":"+text);
4083 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4086 else if (target_type == TYPE_CHANNEL)
4090 chanrec *c = (chanrec*)dest;
4091 std::string cname = c->name;
4093 cname = status + cname;
4094 std::deque<TreeServer*> list;
4095 GetListOfServersForChannel(c,list);
4096 unsigned int ucount = list.size();
4097 for (unsigned int i = 0; i < ucount; i++)
4099 TreeSocket* Sock = list[i]->GetSocket();
4101 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4105 else if (target_type == TYPE_SERVER)
4109 char* target = (char*)dest;
4110 std::deque<std::string> par;
4111 par.push_back(target);
4112 par.push_back(":"+text);
4113 DoOneToMany(user->nick,"PRIVMSG",par);
4118 virtual void OnBackgroundTimer(time_t curtime)
4120 AutoConnectServers(curtime);
4121 DoPingChecks(curtime);
4124 virtual void OnUserJoin(userrec* user, chanrec* channel)
4126 // Only do this for local users
4129 std::deque<std::string> params;
4131 params.push_back(channel->name);
4133 if (channel->GetUserCounter() > 1)
4135 // not the first in the channel
4136 DoOneToMany(user->nick,"JOIN",params);
4140 // first in the channel, set up their permissions
4141 // and the channel TS with FJOIN.
4143 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4145 params.push_back(channel->name);
4146 params.push_back(ts);
4147 params.push_back("@"+std::string(user->nick));
4148 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4153 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4155 // only occurs for local clients
4156 if (user->registered != REG_ALL)
4158 std::deque<std::string> params;
4159 params.push_back(newhost);
4160 DoOneToMany(user->nick,"FHOST",params);
4163 virtual void OnChangeName(userrec* user, const std::string &gecos)
4165 // only occurs for local clients
4166 if (user->registered != REG_ALL)
4168 std::deque<std::string> params;
4169 params.push_back(gecos);
4170 DoOneToMany(user->nick,"FNAME",params);
4173 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4177 std::deque<std::string> params;
4178 params.push_back(channel->name);
4179 if (partmessage != "")
4180 params.push_back(":"+partmessage);
4181 DoOneToMany(user->nick,"PART",params);
4185 virtual void OnUserConnect(userrec* user)
4187 char agestr[MAXBUF];
4190 std::deque<std::string> params;
4191 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4192 params.push_back(agestr);
4193 params.push_back(user->nick);
4194 params.push_back(user->host);
4195 params.push_back(user->dhost);
4196 params.push_back(user->ident);
4197 params.push_back("+"+std::string(user->FormatModes()));
4198 params.push_back(user->GetIPString());
4199 params.push_back(":"+std::string(user->fullname));
4200 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4202 // User is Local, change needs to be reflected!
4203 TreeServer* SourceServer = FindServer(user->server);
4206 SourceServer->AddUserCount();
4212 virtual void OnUserQuit(userrec* user, const std::string &reason)
4214 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4216 std::deque<std::string> params;
4217 params.push_back(":"+reason);
4218 DoOneToMany(user->nick,"QUIT",params);
4220 // Regardless, We need to modify the user Counts..
4221 TreeServer* SourceServer = FindServer(user->server);
4224 SourceServer->DelUserCount();
4229 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4233 std::deque<std::string> params;
4234 params.push_back(user->nick);
4235 DoOneToMany(oldnick,"NICK",params);
4239 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4241 if ((source) && (IS_LOCAL(source)))
4243 std::deque<std::string> params;
4244 params.push_back(chan->name);
4245 params.push_back(user->nick);
4246 params.push_back(":"+reason);
4247 DoOneToMany(source->nick,"KICK",params);
4251 std::deque<std::string> params;
4252 params.push_back(chan->name);
4253 params.push_back(user->nick);
4254 params.push_back(":"+reason);
4255 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4259 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4261 std::deque<std::string> params;
4262 params.push_back(dest->nick);
4263 params.push_back(":"+reason);
4264 DoOneToMany(source->nick,"KILL",params);
4267 virtual void OnRehash(const std::string ¶meter)
4269 if (parameter != "")
4271 std::deque<std::string> params;
4272 params.push_back(parameter);
4273 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4275 if (Srv->MatchText(ServerInstance->Config->ServerName,parameter))
4277 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4278 Srv->RehashServer();
4281 ReadConfiguration(false);
4284 // note: the protocol does not allow direct umode +o except
4285 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4287 virtual void OnOper(userrec* user, const std::string &opertype)
4291 std::deque<std::string> params;
4292 params.push_back(opertype);
4293 DoOneToMany(user->nick,"OPERTYPE",params);
4297 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4299 if (IS_LOCAL(source))
4302 snprintf(type,8,"%cLINE",linetype);
4303 std::string stype = type;
4306 char sduration[MAXBUF];
4307 snprintf(sduration,MAXBUF,"%ld",duration);
4308 std::deque<std::string> params;
4309 params.push_back(host);
4310 params.push_back(sduration);
4311 params.push_back(":"+reason);
4312 DoOneToMany(source->nick,stype,params);
4316 std::deque<std::string> params;
4317 params.push_back(host);
4318 DoOneToMany(source->nick,stype,params);
4323 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4325 OnLine(source,hostmask,true,'G',duration,reason);
4328 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4330 OnLine(source,ipmask,true,'Z',duration,reason);
4333 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4335 OnLine(source,nickmask,true,'Q',duration,reason);
4338 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4340 OnLine(source,hostmask,true,'E',duration,reason);
4343 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4345 OnLine(source,hostmask,false,'G',0,"");
4348 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4350 OnLine(source,ipmask,false,'Z',0,"");
4353 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4355 OnLine(source,nickmask,false,'Q',0,"");
4358 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4360 OnLine(source,hostmask,false,'E',0,"");
4363 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4365 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4367 if (target_type == TYPE_USER)
4369 userrec* u = (userrec*)dest;
4370 std::deque<std::string> params;
4371 params.push_back(u->nick);
4372 params.push_back(text);
4373 DoOneToMany(user->nick,"MODE",params);
4377 chanrec* c = (chanrec*)dest;
4378 std::deque<std::string> params;
4379 params.push_back(c->name);
4380 params.push_back(text);
4381 DoOneToMany(user->nick,"MODE",params);
4386 virtual void OnSetAway(userrec* user)
4390 std::deque<std::string> params;
4391 params.push_back(":"+std::string(user->awaymsg));
4392 DoOneToMany(user->nick,"AWAY",params);
4396 virtual void OnCancelAway(userrec* user)
4400 std::deque<std::string> params;
4402 DoOneToMany(user->nick,"AWAY",params);
4406 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4408 TreeSocket* s = (TreeSocket*)opaque;
4411 if (target_type == TYPE_USER)
4413 userrec* u = (userrec*)target;
4414 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4418 chanrec* c = (chanrec*)target;
4419 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4424 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4426 TreeSocket* s = (TreeSocket*)opaque;
4429 if (target_type == TYPE_USER)
4431 userrec* u = (userrec*)target;
4432 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4434 else if (target_type == TYPE_OTHER)
4436 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4438 else if (target_type == TYPE_CHANNEL)
4440 chanrec* c = (chanrec*)target;
4441 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4446 virtual void OnEvent(Event* event)
4448 if (event->GetEventID() == "send_metadata")
4450 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4451 if (params->size() < 3)
4453 (*params)[2] = ":" + (*params)[2];
4454 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4456 else if (event->GetEventID() == "send_mode")
4458 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4459 if (params->size() < 2)
4461 // Insert the TS value of the object, either userrec or chanrec
4463 userrec* a = ServerInstance->FindNick((*params)[0]);
4470 chanrec* a = ServerInstance->FindChan((*params)[0]);
4476 params->insert(params->begin() + 1,ConvToStr(ourTS));
4477 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4481 virtual ~ModuleSpanningTree()
4485 virtual Version GetVersion()
4487 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4490 void Implements(char* List)
4492 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4493 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4494 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4495 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4496 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4497 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4498 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4501 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4502 * so that any activity it sees is FINAL, e.g. we arent going to send out
4503 * a NICK message before m_cloaking has finished putting the +x on the user,
4505 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4506 * the module call queue.
4508 Priority Prioritize()
4510 return PRIORITY_LAST;
4515 class ModuleSpanningTreeFactory : public ModuleFactory
4518 ModuleSpanningTreeFactory()
4522 ~ModuleSpanningTreeFactory()
4526 virtual Module * CreateModule(Server* Me)
4528 TreeProtocolModule = new ModuleSpanningTree(Me);
4529 return TreeProtocolModule;
4535 extern "C" void * init_module( void )
4537 return new ModuleSpanningTreeFactory;