1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
25 #include "inspircd_config.h"
27 #include "configreader.h"
32 #include "commands/cmd_whois.h"
33 #include "commands/cmd_stats.h"
38 #include "inspstring.h"
42 #include "cull_list.h"
45 #define nspace __gnu_cxx
48 * The server list in InspIRCd is maintained as two structures
49 * which hold the data in different ways. Most of the time, we
50 * want to very quicky obtain three pieces of information:
52 * (1) The information on a server
53 * (2) The information on the server we must send data through
54 * to actually REACH the server we're after
55 * (3) Potentially, the child/parent objects of this server
57 * The InspIRCd spanning protocol provides easy access to these
58 * by storing the data firstly in a recursive structure, where
59 * each item references its parent item, and a dynamic list
60 * of child items, and another structure which stores the items
61 * hashed, linearly. This means that if we want to find a server
62 * by name quickly, we can look it up in the hash, avoiding
63 * any O(n) lookups. If however, during a split or sync, we want
64 * to apply an operation to a server, and any of its child objects
65 * we can resort to recursion to walk the tree structure.
68 using irc::sockets::MatchCIDR;
70 class ModuleSpanningTree;
71 static ModuleSpanningTree* TreeProtocolModule;
72 static InspIRCd* ServerInstance;
74 /* Any socket can have one of five states at any one time.
75 * The LISTENER state indicates a socket which is listening
76 * for connections. It cannot receive data itself, only incoming
78 * The CONNECTING state indicates an outbound socket which is
79 * waiting to be writeable.
80 * The WAIT_AUTH_1 state indicates the socket is outbound and
81 * has successfully connected, but has not yet sent and received
83 * The WAIT_AUTH_2 state indicates that the socket is inbound
84 * (allocated by a LISTENER) but has not yet sent and received
86 * The CONNECTED state represents a fully authorized, fully
89 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
91 /* Foward declarations */
95 /* This variable represents the root of the server tree
96 * (for all intents and purposes, it's us)
100 /* This hash_map holds the hash equivalent of the server
101 * tree, used for rapid linear lookups.
103 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
104 server_hash serverlist;
106 typedef nspace::hash_map<std::string, userrec*> uid_hash;
107 typedef nspace::hash_map<std::string, char*> sid_hash;
109 /* More forward declarations */
110 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
111 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
112 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
113 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
114 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
115 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
116 void ReadConfiguration(bool rebind);
118 /* Flatten links and /MAP for non-opers */
120 /* Hide U-Lined servers in /MAP and /LINKS */
123 std::vector<std::string> ValidIPs;
125 class UserManager : public classbase
136 std::string UserToUID(userrec* user)
141 std::string UIDToUser(const std::string &UID)
146 std::string CreateAndAdd(userrec* user)
151 std::string CreateAndAdd(const std::string &servername)
156 std::string ServerToSID(const std::string &servername)
161 std::string SIDToServer(const std::string &SID)
166 userrec* FindByID(const std::string &UID)
173 /* Each server in the tree is represented by one class of
174 * type TreeServer. A locally connected TreeServer can
175 * have a class of type TreeSocket associated with it, for
176 * remote servers, the TreeSocket entry will be NULL.
177 * Each server also maintains a pointer to its parent
178 * (NULL if this server is ours, at the top of the tree)
179 * and a pointer to its "Route" (see the comments in the
180 * constructors below), and also a dynamic list of pointers
181 * to its children which can be iterated recursively
182 * if required. Creating or deleting objects of type
183 i* TreeServer automatically maintains the hash_map of
184 * TreeServer items, deleting and inserting them as they
185 * are created and destroyed.
188 class TreeServer : public classbase
190 InspIRCd* ServerInstance; /* Creator */
191 TreeServer* Parent; /* Parent entry */
192 TreeServer* Route; /* Route entry */
193 std::vector<TreeServer*> Children; /* List of child objects */
194 irc::string ServerName; /* Server's name */
195 std::string ServerDesc; /* Server's description */
196 std::string VersionString; /* Version string or empty string */
197 int UserCount; /* Not used in this version */
198 int OperCount; /* Not used in this version */
199 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
200 time_t NextPing; /* After this time, the server should be PINGed*/
201 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
205 /* We don't use this constructor. Its a dummy, and won't cause any insertion
206 * of the TreeServer into the hash_map. See below for the two we DO use.
208 TreeServer(InspIRCd* Instance) : ServerInstance(Instance)
214 UserCount = OperCount = 0;
215 VersionString = ServerInstance->GetVersionString();
218 /* We use this constructor only to create the 'root' item, TreeRoot, which
219 * represents our own server. Therefore, it has no route, no parent, and
220 * no socket associated with it. Its version string is our own local version.
222 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc)
226 UserCount = OperCount = 0;
227 VersionString = ServerInstance->GetVersionString();
229 Socket = NULL; /* Fix by brain */
233 /* When we create a new server, we call this constructor to initialize it.
234 * This constructor initializes the server's Route and Parent, and sets up
235 * its ping counters so that it will be pinged one minute from now.
237 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
238 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
241 UserCount = OperCount = 0;
242 this->SetNextPingTime(time(NULL) + 120);
245 /* find the 'route' for this server (e.g. the one directly connected
246 * to the local server, which we can use to reach it)
248 * In the following example, consider we have just added a TreeServer
249 * class for server G on our network, of which we are server A.
250 * To route traffic to G (marked with a *) we must send the data to
251 * B (marked with a +) so this algorithm initializes the 'Route'
252 * value to point at whichever server traffic must be routed through
253 * to get here. If we were to try this algorithm with server B,
254 * the Route pointer would point at its own object ('this').
264 * We only run this algorithm when a server is created, as
265 * the routes remain constant while ever the server exists, and
266 * do not need to be re-calculated.
270 if (Route == TreeRoot)
276 while (this->Route->GetParent() != TreeRoot)
278 this->Route = Route->GetParent();
282 /* Because recursive code is slow and takes a lot of resources,
283 * we store two representations of the server tree. The first
284 * is a recursive structure where each server references its
285 * children and its parent, which is used for netbursts and
286 * netsplits to dump the whole dataset to the other server,
287 * and the second is used for very fast lookups when routing
288 * messages and is instead a hash_map, where each item can
289 * be referenced by its server name. The AddHashEntry()
290 * call below automatically inserts each TreeServer class
291 * into the hash_map as it is created. There is a similar
292 * maintainance call in the destructor to tidy up deleted
296 this->AddHashEntry();
299 int QuitUsers(const std::string &reason)
301 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
302 const char* reason_s = reason.c_str();
303 std::vector<userrec*> time_to_die;
304 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
306 if (!strcmp(n->second->server, this->ServerName.c_str()))
308 time_to_die.push_back(n->second);
311 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
313 userrec* a = (userrec*)*n;
314 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
316 userrec::QuitUser(ServerInstance,a,reason_s);
318 return time_to_die.size();
321 /* This method is used to add the structure to the
322 * hash_map for linear searches. It is only called
323 * by the constructors.
327 server_hash::iterator iter;
328 iter = serverlist.find(this->ServerName.c_str());
329 if (iter == serverlist.end())
330 serverlist[this->ServerName.c_str()] = this;
333 /* This method removes the reference to this object
334 * from the hash_map which is used for linear searches.
335 * It is only called by the default destructor.
339 server_hash::iterator iter;
340 iter = serverlist.find(this->ServerName.c_str());
341 if (iter != serverlist.end())
342 serverlist.erase(iter);
345 /* These accessors etc should be pretty self-
349 TreeServer* GetRoute()
354 std::string GetName()
356 return ServerName.c_str();
359 std::string GetDesc()
364 std::string GetVersion()
366 return VersionString;
369 void SetNextPingTime(time_t t)
372 LastPingWasGood = false;
375 time_t NextPingTime()
380 bool AnsweredLastPing()
382 return LastPingWasGood;
387 LastPingWasGood = true;
410 TreeSocket* GetSocket()
415 TreeServer* GetParent()
420 void SetVersion(std::string Version)
422 VersionString = Version;
425 unsigned int ChildCount()
427 return Children.size();
430 TreeServer* GetChild(unsigned int n)
432 if (n < Children.size())
434 /* Make sure they cant request
435 * an out-of-range object. After
436 * all we know what these programmer
437 * types are like *grin*.
447 void AddChild(TreeServer* Child)
449 Children.push_back(Child);
452 bool DelChild(TreeServer* Child)
454 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
465 /* Removes child nodes of this node, and of that node, etc etc.
466 * This is used during netsplits to automatically tidy up the
467 * server tree. It is slow, we don't use it for much else.
471 bool stillchildren = true;
472 while (stillchildren)
474 stillchildren = false;
475 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
477 TreeServer* s = (TreeServer*)*a;
481 stillchildren = true;
490 /* We'd better tidy up after ourselves, eh? */
491 this->DelHashEntry();
495 /* The Link class might as well be a struct,
496 * but this is C++ and we don't believe in structs (!).
497 * It holds the entire information of one <link>
498 * tag from the main config file. We maintain a list
499 * of them, and populate the list on rehash/load.
502 class Link : public classbase
508 std::string SendPass;
509 std::string RecvPass;
510 unsigned long AutoConnect;
511 time_t NextConnectTime;
512 std::string EncryptionKey;
513 bool HiddenFromStats;
516 /* The usual stuff for inspircd modules,
517 * plus the vector of Link classes which we
518 * use to store the <link> tags from the config
522 std::vector<Link> LinkBlocks;
524 /* Yay for fast searches!
525 * This is hundreds of times faster than recursion
526 * or even scanning a linked list, especially when
527 * there are more than a few servers to deal with.
530 TreeServer* FindServer(std::string ServerName)
532 server_hash::iterator iter;
533 iter = serverlist.find(ServerName.c_str());
534 if (iter != serverlist.end())
544 /* Returns the locally connected server we must route a
545 * message through to reach server 'ServerName'. This
546 * only applies to one-to-one and not one-to-many routing.
547 * See the comments for the constructor of TreeServer
550 TreeServer* BestRouteTo(std::string ServerName)
552 if (ServerName.c_str() == TreeRoot->GetName())
554 TreeServer* Found = FindServer(ServerName);
557 return Found->GetRoute();
565 /* Find the first server matching a given glob mask.
566 * Theres no find-using-glob method of hash_map [awwww :-(]
567 * so instead, we iterate over the list using an iterator
568 * and match each one until we get a hit. Yes its slow,
571 TreeServer* FindServerMask(std::string ServerName)
573 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
575 if (match(i->first.c_str(),ServerName.c_str()))
581 /* A convenient wrapper that returns true if a server exists */
582 bool IsServer(std::string ServerName)
584 return (FindServer(ServerName) != NULL);
588 class cmd_rconnect : public command_t
592 cmd_rconnect (InspIRCd* Instance, Module* Callback) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback)
594 this->source = "m_spanningtree.so";
595 syntax = "<remote-server-mask> <servermask>";
598 void Handle (const char** parameters, int pcnt, userrec *user)
600 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
601 /* Is this aimed at our server? */
602 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
604 /* Yes, initiate the given connect */
605 ServerInstance->WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
607 para[0] = parameters[1];
608 Creator->OnPreCommand("CONNECT", para, 1, user, true);
615 /* Every SERVER connection inbound or outbound is represented by
616 * an object of type TreeSocket.
617 * TreeSockets, being inherited from InspSocket, can be tied into
618 * the core socket engine, and we cn therefore receive activity events
619 * for them, just like activex objects on speed. (yes really, that
620 * is a technical term!) Each of these which relates to a locally
621 * connected server is assocated with it, by hooking it onto a
622 * TreeSocket class using its constructor. In this way, we can
623 * maintain a list of servers, some of which are directly connected,
624 * some of which are not.
627 class TreeSocket : public InspSocket
630 std::string in_buffer;
631 ServerState LinkState;
632 std::string InboundServerName;
633 std::string InboundDescription;
635 int num_lost_servers;
637 bool LastPingWasGood;
641 unsigned int keylength;
645 /* Because most of the I/O gubbins are encapsulated within
646 * InspSocket, we just call the superclass constructor for
647 * most of the action, and append a few of our own values
650 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
651 : InspSocket(SI, host, port, listening, maxtime)
654 this->LinkState = LISTENER;
656 this->ctx_out = NULL;
659 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
660 : InspSocket(SI, host, port, listening, maxtime)
663 this->LinkState = CONNECTING;
665 this->ctx_out = NULL;
668 /* When a listening socket gives us a new file descriptor,
669 * we must associate it with a socket without creating a new
670 * connection. This constructor is used for this purpose.
672 TreeSocket(InspIRCd* SI, int newfd, char* ip)
673 : InspSocket(SI, newfd, ip)
675 this->LinkState = WAIT_AUTH_1;
677 this->ctx_out = NULL;
678 this->SendCapabilities();
689 void InitAES(std::string key,std::string SName)
696 ServerInstance->Log(DEBUG,"Initialized AES key %s",key.c_str());
697 // key must be 16, 24, 32 etc bytes (multiple of 8)
698 keylength = key.length();
699 if (!(keylength == 16 || keylength == 24 || keylength == 32))
701 this->Instance->WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
702 ServerInstance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
706 this->Instance->WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
707 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\
708 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
709 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\
710 \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);
714 /* When an outbound connection finishes connecting, we receive
715 * this event, and must send our SERVER string to the other
716 * side. If the other side is happy, as outlined in the server
717 * to server docs on the inspircd.org site, the other side
718 * will then send back its own server string.
720 virtual bool OnConnected()
722 if (this->LinkState == CONNECTING)
724 /* we do not need to change state here. */
725 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
727 if (x->Name == this->myhost)
729 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
730 this->SendCapabilities();
731 if (x->EncryptionKey != "")
733 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
735 this->Instance->WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
739 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
740 this->InitAES(x->EncryptionKey,x->Name.c_str());
743 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
744 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
749 /* There is a (remote) chance that between the /CONNECT and the connection
750 * being accepted, some muppet has removed the <link> block and rehashed.
751 * If that happens the connection hangs here until it's closed. Unlikely
752 * and rather harmless.
754 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
758 virtual void OnError(InspSocketError e)
760 /* We don't handle this method, because all our
761 * dirty work is done in OnClose() (see below)
762 * which is still called on error conditions too.
764 if (e == I_ERR_CONNECT)
766 this->Instance->WriteOpers("*** Connection failed: Connection refused");
770 virtual int OnDisconnect()
772 /* For the same reason as above, we don't
773 * handle OnDisconnect()
778 /* Recursively send the server tree with distances as hops.
779 * This is used during network burst to inform the other server
780 * (and any of ITS servers too) of what servers we know about.
781 * If at any point any of these servers already exist on the other
782 * end, our connection may be terminated. The hopcounts given
783 * by this function are relative, this doesn't matter so long as
784 * they are all >1, as all the remote servers re-calculate them
785 * to be relative too, with themselves as hop 0.
787 void SendServers(TreeServer* Current, TreeServer* s, int hops)
790 for (unsigned int q = 0; q < Current->ChildCount(); q++)
792 TreeServer* recursive_server = Current->GetChild(q);
793 if (recursive_server != s)
795 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
796 this->WriteLine(command);
797 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
798 /* down to next level */
799 this->SendServers(recursive_server, s, hops+1);
804 std::string MyCapabilities()
806 std::vector<std::string> modlist;
807 std::string capabilities = "";
809 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
811 if ((this->Instance->modules[i]->GetVersion().Flags & VF_STATIC) || (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON))
812 modlist.push_back(this->Instance->Config->module_names[i]);
814 sort(modlist.begin(),modlist.end());
815 for (unsigned int i = 0; i < modlist.size(); i++)
818 capabilities = capabilities + ",";
819 capabilities = capabilities + modlist[i];
824 void SendCapabilities()
826 this->WriteLine("CAPAB "+MyCapabilities());
829 bool Capab(std::deque<std::string> params)
831 if (params.size() != 1)
833 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
837 if (params[0] != this->MyCapabilities())
839 std::string quitserver = this->myhost;
840 if (this->InboundServerName != "")
842 quitserver = this->InboundServerName;
845 this->Instance->WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
846 this->Instance->WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
847 this->Instance->WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
848 this->Instance->WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
849 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
856 /* This function forces this server to quit, removing this server
857 * and any users on it (and servers and users below that, etc etc).
858 * It's very slow and pretty clunky, but luckily unless your network
859 * is having a REAL bad hair day, this function shouldnt be called
860 * too many times a month ;-)
862 void SquitServer(std::string &from, TreeServer* Current)
864 /* recursively squit the servers attached to 'Current'.
865 * We're going backwards so we don't remove users
866 * while we still need them ;)
868 for (unsigned int q = 0; q < Current->ChildCount(); q++)
870 TreeServer* recursive_server = Current->GetChild(q);
871 this->SquitServer(from,recursive_server);
873 /* Now we've whacked the kids, whack self */
875 num_lost_users += Current->QuitUsers(from);
878 /* This is a wrapper function for SquitServer above, which
879 * does some validation first and passes on the SQUIT to all
880 * other remaining servers.
882 void Squit(TreeServer* Current,std::string reason)
884 if ((Current) && (Current != TreeRoot))
886 std::deque<std::string> params;
887 params.push_back(Current->GetName());
888 params.push_back(":"+reason);
889 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
890 if (Current->GetParent() == TreeRoot)
892 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
896 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
898 num_lost_servers = 0;
900 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
901 SquitServer(from, Current);
903 Current->GetParent()->DelChild(Current);
905 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
909 ServerInstance->Log(DEFAULT,"Squit from unknown server");
913 /* FMODE command - server mode with timestamp checks */
914 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
916 /* Chances are this is a 1.0 FMODE without TS */
917 if (params.size() < 3)
919 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
924 std::string sourceserv;
926 /* Are we dealing with an FMODE from a user, or from a server? */
927 userrec* who = this->Instance->FindNick(source);
930 /* FMODE from a user, set sourceserv to the users server name */
931 sourceserv = who->server;
935 /* FMODE from a server, create a fake user to receive mode feedback */
936 who = new userrec(this->Instance);
937 who->SetFd(FD_MAGIC_NUMBER);
938 smode = true; /* Setting this flag tells us we should free the userrec later */
939 sourceserv = source; /* Set sourceserv to the actual source string */
941 const char* modelist[64];
944 memset(&modelist,0,sizeof(modelist));
945 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
949 /* The timestamp is in this position.
950 * We don't want to pass that up to the
951 * server->client protocol!
953 TS = atoi(params[q].c_str());
957 /* Everything else is fine to append to the modelist */
958 modelist[n++] = params[q].c_str();
962 /* Extract the TS value of the object, either userrec or chanrec */
963 userrec* dst = this->Instance->FindNick(params[0]);
964 chanrec* chan = NULL;
972 chan = this->Instance->FindChan(params[0]);
979 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
984 ServerInstance->Log(DEBUG,"Entering TS equality check");
985 ModeHandler* mh = NULL;
986 unsigned long paramptr = 3;
987 std::string to_bounce = "";
988 std::string to_keep = "";
989 std::vector<std::string> params_to_keep;
990 std::string params_to_bounce = "";
994 char old_bounce_change = 0;
995 /* Merge modes, basically do special stuff to mode with params */
996 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1009 /* We only care about whats being set,
1010 * not whats being unset
1012 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1014 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1016 /* We only want to do special things to
1017 * modes with parameters, we are going to rewrite
1021 adding ? cur_change = '+' : cur_change = '-';
1023 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1025 /* The mode is set here, check which we should keep */
1028 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1030 if (which_to_keep == true)
1032 /* Keep ours, bounce theirs:
1033 * Send back ours to them and
1034 * drop their mode changs
1036 adding ? cur_change = '+' : cur_change = '-';
1037 if (cur_change != old_bounce_change)
1038 to_bounce += cur_change;
1040 old_bounce_change = cur_change;
1042 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1043 params_to_bounce.append(" ").append(ret.second);
1047 /* Keep theirs: Accept their mode change,
1050 adding ? cur_change = '+' : cur_change = '-';
1051 if (cur_change != old_change)
1052 to_keep += cur_change;
1054 old_change = cur_change;
1056 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1057 params_to_keep.push_back(params[paramptr]);
1062 /* Mode isnt set here, we want it */
1063 adding ? cur_change = '+' : cur_change = '-';
1064 if (cur_change != old_change)
1065 to_keep += cur_change;
1067 old_change = cur_change;
1069 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1070 params_to_keep.push_back(params[paramptr]);
1077 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1081 adding ? cur_change = '+' : cur_change = '-';
1083 /* Just keep this, safe to merge with no checks
1084 * it has no parameters
1087 if (cur_change != old_change)
1088 to_keep += cur_change;
1090 old_change = cur_change;
1092 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1094 ServerInstance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1095 params_to_keep.push_back(params[paramptr++]);
1102 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1106 /* Taking a mode away */
1107 adding ? cur_change = '+' : cur_change = '-';
1109 if (cur_change != old_change)
1110 to_keep += cur_change;
1112 old_change = cur_change;
1114 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1115 params_to_keep.push_back(params[paramptr++]);
1122 if (to_bounce.length())
1124 std::deque<std::string> newparams;
1125 newparams.push_back(params[0]);
1126 newparams.push_back(ConvToStr(ourTS));
1127 newparams.push_back(to_bounce+params_to_bounce);
1128 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1131 if (to_keep.length())
1135 modelist[0] = params[0].c_str();
1136 modelist[1] = to_keep.c_str();
1138 if (params_to_keep.size() > 2)
1140 for (q = 2; (q < params_to_keep.size()) && (q < 64); q++)
1142 ServerInstance->Log(DEBUG,"Item %d of %d", q, params_to_keep.size());
1143 modelist[n++] = params_to_keep[q].c_str();
1149 ServerInstance->Log(DEBUG,"Send mode");
1150 this->Instance->SendMode(modelist, n+2, who);
1154 ServerInstance->Log(DEBUG,"Send mode client");
1155 this->Instance->CallCommandHandler("MODE", modelist, n+2, who);
1158 /* HOT POTATO! PASS IT ON! */
1159 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1163 /* U-lined servers always win regardless of their TS */
1164 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1166 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1167 * SHOULD accept it, if its clock is right.
1169 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1170 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1171 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1173 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1174 * writing the code. It took me a while to come up with this solution.
1176 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1179 std::deque<std::string> newparams; /* New parameter list we send back */
1180 newparams.push_back(params[0]); /* Target, user or channel */
1181 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1182 newparams.push_back(""); /* This contains the mode string. For now
1183 * it's empty, we fill it below.
1186 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1187 * set to avoid a desync here.
1189 std::string modebounce = "";
1192 ModeHandler* mh = NULL;
1193 char cur_change = 1;
1194 char old_change = 0;
1195 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1197 /* Iterate over all mode chars in the sent set */
1200 /* Adding or subtracting modes? */
1208 /* Find the mode handler for this mode */
1209 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1211 /* Got a mode handler?
1212 * This also prevents us bouncing modes we have no handler for.
1219 /* Does the mode require a parameter right now?
1220 * If it does, fetch it if we can
1222 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1225 /* Call the ModeSet method to determine if its set with the
1226 * given parameter here or not.
1228 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1230 /* XXX: Really. Dont ask.
1231 * Determine from if its set combined with what the current
1232 * 'state' is (adding or not) as to wether we should 'invert'
1233 * or 'reinforce' the mode change
1235 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1237 /* Quickly determine if we have 'flipped' from + to -,
1238 * or - to +, to prevent unneccessary +/- chars in the
1239 * output string that waste bandwidth
1241 if (cur_change != old_change)
1242 modebounce += cur_change;
1243 old_change = cur_change;
1245 /* Add the mode character to the output string */
1246 modebounce += mh->GetModeChar();
1248 /* We got a parameter back from ModeHandler::ModeSet,
1249 * are we supposed to be sending one out right now?
1251 if (ret.second.length())
1253 if (mh->GetNumParams(cur_change == '+') > 0)
1254 /* Yes we're supposed to be sending out
1255 * the parameter. Make sure it goes
1257 newparams.push_back(ret.second);
1265 /* Update the parameters for FMODE with the new 'bounced' string */
1266 newparams[2] = modebounce;
1267 /* Only send it back the way it came, no need to send it anywhere else */
1268 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1269 ServerInstance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1273 ServerInstance->Log(DEBUG,"Allow modes, TS lower for sender");
1274 /* The server was ulined, but something iffy is up with the TS.
1275 * Sound the alarm bells!
1277 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1279 this->Instance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
1281 /* Allow the mode, route it to either server or user command handling */
1283 this->Instance->SendMode(modelist,n,who);
1285 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1287 /* HOT POTATO! PASS IT ON! */
1288 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1290 /* Are we supposed to free the userrec? */
1297 /* FTOPIC command */
1298 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1300 if (params.size() != 4)
1302 time_t ts = atoi(params[1].c_str());
1303 std::string nsource = source;
1305 chanrec* c = this->Instance->FindChan(params[0]);
1308 if ((ts >= c->topicset) || (!*c->topic))
1310 std::string oldtopic = c->topic;
1311 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1312 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1314 /* if the topic text is the same as the current topic,
1315 * dont bother to send the TOPIC command out, just silently
1316 * update the set time and set nick.
1318 if (oldtopic != params[3])
1320 userrec* user = this->Instance->FindNick(source);
1323 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1327 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1328 nsource = user->server;
1330 /* all done, send it on its way */
1331 params[3] = ":" + params[3];
1332 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1341 /* FJOIN, similar to unreal SJOIN */
1342 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1344 if (params.size() < 3)
1348 char modestring[MAXBUF];
1349 char* mode_users[127];
1350 memset(&mode_users,0,sizeof(mode_users));
1351 mode_users[0] = first;
1352 mode_users[1] = modestring;
1353 strcpy(modestring,"+");
1354 unsigned int modectr = 2;
1356 userrec* who = NULL;
1357 std::string channel = params[0];
1358 time_t TS = atoi(params[1].c_str());
1361 chanrec* chan = this->Instance->FindChan(channel);
1366 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1368 /* default is a high value, which if we dont have this
1369 * channel will let the other side apply their modes.
1371 time_t ourTS = time(NULL)+600;
1372 chanrec* us = this->Instance->FindChan(channel);
1378 ServerInstance->Log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1380 irc::tokenstream users(params[2]);
1381 std::string item = "";
1383 /* do this first, so our mode reversals are correctly received by other servers
1384 * if there is a TS collision.
1386 params[2] = ":" + params[2];
1387 DoOneToAllButSender(source,"FJOIN",params,source);
1389 while ((item = users.GetToken()) != "")
1391 /* process one channel at a time, applying modes. */
1392 char* usr = (char*)item.c_str();
1393 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1394 * (is this even possible?) */
1397 char* permissions = usr;
1398 while ((*permissions) && (*permissions != ','))
1400 ModeHandler* mh = ServerInstance->Modes->FindPrefix(*permissions);
1403 mode_users[modectr++] = usr;
1404 charlcat(modestring,mh->GetModeChar(),MAXBUF);
1408 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
1409 this->WriteLine(std::string("ERROR :What?! You sent me a mode prefix i cant handle ('")+mh->GetModeChar()+"'). Closing connection to avoid desync.");
1415 who = this->Instance->FindNick(usr);
1418 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1419 if (modectr >= (MAXMODES-1))
1421 /* theres a mode for this user. push them onto the mode queue, and flush it
1422 * if there are more than MAXMODES to go.
1424 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1426 /* We also always let u-lined clients win, no matter what the TS value */
1427 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1428 this->Instance->SendMode((const char**)mode_users,modectr,who);
1431 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1438 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1439 /* bouncy bouncy! */
1440 std::deque<std::string> params;
1441 /* modes are now being UNSET... */
1442 *mode_users[1] = '-';
1443 for (unsigned int x = 0; x < modectr; x++)
1447 params.push_back(ConvToStr(us->age));
1449 params.push_back(mode_users[x]);
1452 // tell everyone to bounce the modes. bad modes, bad!
1453 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1455 strcpy(mode_users[1],"+");
1461 /* there werent enough modes built up to flush it during FJOIN,
1462 * or, there are a number left over. flush them out.
1464 if ((modectr > 2) && (who) && (us))
1468 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1469 this->Instance->SendMode((const char**)mode_users,modectr,who);
1472 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1479 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1480 std::deque<std::string> params;
1481 *mode_users[1] = '-';
1482 for (unsigned int x = 0; x < modectr; x++)
1486 params.push_back(ConvToStr(us->age));
1488 params.push_back(mode_users[x]);
1490 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1496 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1498 if (params.size() >= 2)
1500 chanrec* c = this->Instance->FindChan(params[0]);
1503 time_t theirTS = atoi(params[1].c_str());
1504 time_t ourTS = c->age;
1505 if (ourTS >= theirTS)
1507 ServerInstance->Log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1512 DoOneToAllButSender(this->Instance->Config->ServerName,"SYNCTS",params,source);
1517 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1519 if (params.size() < 8)
1521 if (params.size() > 8)
1523 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1526 // NICK age nick host dhost ident +modes ip :gecos
1528 time_t age = atoi(params[0].c_str());
1530 /* This used to have a pretty craq'y loop doing the same thing,
1531 * now we just let the STL do the hard work (more efficiently)
1533 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1535 const char* tempnick = params[1].c_str();
1536 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1538 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1540 if (iter != this->Instance->clientlist.end())
1543 ServerInstance->Log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1544 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1548 userrec* _new = new userrec(this->Instance);
1549 this->Instance->clientlist[tempnick] = _new;
1550 _new->SetFd(FD_MAGIC_NUMBER);
1551 strlcpy(_new->nick, tempnick,NICKMAX-1);
1552 strlcpy(_new->host, params[2].c_str(),63);
1553 strlcpy(_new->dhost, params[3].c_str(),63);
1554 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1555 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1556 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1557 _new->registered = REG_ALL;
1560 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1561 _new->modes[(*v)-65] = 1;
1563 if (params[6].find_first_of(":") != std::string::npos)
1564 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1566 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1568 this->Instance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1570 params[7] = ":" + params[7];
1571 DoOneToAllButSender(source,"NICK",params,source);
1573 // Increment the Source Servers User Count..
1574 TreeServer* SourceServer = FindServer(source);
1577 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1578 SourceServer->AddUserCount();
1584 /* Send one or more FJOINs for a channel of users.
1585 * If the length of a single line is more than 480-NICKMAX
1586 * in length, it is split over multiple lines.
1588 void SendFJoins(TreeServer* Current, chanrec* c)
1590 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1592 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1594 size_t dlen, curlen;
1595 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1597 char* ptr = list + dlen;
1599 CUList *ulist = c->GetUsers();
1600 std::vector<userrec*> specific_halfop;
1601 std::vector<userrec*> specific_voice;
1602 std::string modes = "";
1603 std::string params = "";
1605 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1607 // The first parameter gets a : before it
1608 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1615 if (curlen > (480-NICKMAX))
1617 this->WriteLine(list);
1618 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1626 this->WriteLine(list);
1628 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1631 params.append(b->data).append(" ");
1633 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1636 /* Send G, Q, Z and E lines */
1637 void SendXLines(TreeServer* Current)
1640 std::string n = this->Instance->Config->ServerName;
1641 const char* sn = n.c_str();
1643 /* Yes, these arent too nice looking, but they get the job done */
1644 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1646 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);
1647 this->WriteLine(data);
1649 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1651 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);
1652 this->WriteLine(data);
1654 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1656 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);
1657 this->WriteLine(data);
1659 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1661 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);
1662 this->WriteLine(data);
1664 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1666 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);
1667 this->WriteLine(data);
1669 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1671 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);
1672 this->WriteLine(data);
1674 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1676 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);
1677 this->WriteLine(data);
1679 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1681 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);
1682 this->WriteLine(data);
1686 /* Send channel modes and topics */
1687 void SendChannelModes(TreeServer* Current)
1690 std::deque<std::string> list;
1692 std::string n = this->Instance->Config->ServerName;
1693 const char* sn = n.c_str();
1694 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1696 SendFJoins(Current, c->second);
1697 if (*c->second->topic)
1699 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1700 this->WriteLine(data);
1702 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1704 c->second->GetExtList(list);
1705 for (unsigned int j = 0; j < list.size(); j++)
1707 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1712 /* send all users and their oper state/modes */
1713 void SendUsers(TreeServer* Current)
1716 std::deque<std::string> list;
1718 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1720 if (u->second->registered == REG_ALL)
1722 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);
1723 this->WriteLine(data);
1724 if (*u->second->oper)
1726 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1728 if (*u->second->awaymsg)
1730 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1732 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1734 u->second->GetExtList(list);
1735 for (unsigned int j = 0; j < list.size(); j++)
1737 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1743 /* This function is called when we want to send a netburst to a local
1744 * server. There is a set order we must do this, because for example
1745 * users require their servers to exist, and channels require their
1746 * users to exist. You get the idea.
1748 void DoBurst(TreeServer* s)
1750 std::string burst = "BURST "+ConvToStr(time(NULL));
1751 std::string endburst = "ENDBURST";
1752 // Because by the end of the netburst, it could be gone!
1753 std::string name = s->GetName();
1754 this->Instance->WriteOpers("*** Bursting to \2"+name+"\2.");
1755 this->WriteLine(burst);
1756 /* send our version string */
1757 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1758 /* Send server tree */
1759 this->SendServers(TreeRoot,s,1);
1760 /* Send users and their oper status */
1762 /* Send everything else (channel modes, xlines etc) */
1763 this->SendChannelModes(s);
1764 this->SendXLines(s);
1765 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1766 this->WriteLine(endburst);
1767 this->Instance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1770 /* This function is called when we receive data from a remote
1771 * server. We buffer the data in a std::string (it doesnt stay
1772 * there for long), reading using InspSocket::Read() which can
1773 * read up to 16 kilobytes in one operation.
1775 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1776 * THE SOCKET OBJECT FOR US.
1778 virtual bool OnDataReady()
1780 char* data = this->Read();
1781 /* Check that the data read is a valid pointer and it has some content */
1784 this->in_buffer.append(data);
1785 /* While there is at least one new line in the buffer,
1786 * do something useful (we hope!) with it.
1788 while (in_buffer.find("\n") != std::string::npos)
1790 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1791 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1792 if (ret.find("\r") != std::string::npos)
1793 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1794 /* Process this one, abort if it
1795 * didnt return true.
1801 memset(result,0,1024);
1803 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1804 /* ERROR + CAPAB is still allowed unencryped */
1805 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1807 int nbytes = from64tobits(out, ret.c_str(), 1024);
1808 if ((nbytes > 0) && (nbytes < 1024))
1810 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1811 ctx_in->Decrypt(out, result, nbytes, 0);
1812 for (int t = 0; t < nbytes; t++)
1813 if (result[t] == '\7') result[t] = 0;
1818 if (!this->ProcessLine(ret))
1820 ServerInstance->Log(DEBUG,"ProcessLine says no!");
1826 /* EAGAIN returns an empty but non-NULL string, so this
1827 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1829 return (data && !*data);
1832 int WriteLine(std::string line)
1834 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
1838 char result64[10240];
1839 if (this->keylength)
1841 // pad it to the key length
1842 int n = this->keylength - (line.length() % this->keylength);
1845 ServerInstance->Log(DEBUG,"Append %d chars to line to make it %d long from %d, key length %d",n,n+line.length(),line.length(),this->keylength);
1846 line.append(n,'\7');
1849 unsigned int ll = line.length();
1850 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1851 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1853 //int from64tobits(char *out, const char *in, int maxlen);
1855 return this->Write(line + "\r\n");
1858 /* Handle ERROR command */
1859 bool Error(std::deque<std::string> ¶ms)
1861 if (params.size() < 1)
1863 this->Instance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1864 /* we will return false to cause the socket to close. */
1868 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
1870 /* Get the reply to a STATS query if it matches this servername,
1871 * and send it back as a load of PUSH queries
1873 if (params.size() > 1)
1875 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
1877 /* It's for our server */
1878 string_list results;
1879 userrec* source = this->Instance->FindNick(prefix);
1882 std::deque<std::string> par;
1883 par.push_back(prefix);
1885 DoStats(this->Instance, *(params[0].c_str()), source, results);
1886 for (size_t i = 0; i < results.size(); i++)
1888 par[1] = "::" + results[i];
1889 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
1896 userrec* source = this->Instance->FindNick(prefix);
1898 DoOneToOne(prefix, "STATS", params, params[1]);
1905 /* Because the core won't let users or even SERVERS set +o,
1906 * we use the OPERTYPE command to do this.
1908 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1910 if (params.size() != 1)
1912 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1915 std::string opertype = params[0];
1916 userrec* u = this->Instance->FindNick(prefix);
1919 u->modes[UM_OPERATOR] = 1;
1920 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1921 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1926 /* Because Andy insists that services-compatible servers must
1927 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1929 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1931 if (params.size() < 3)
1934 userrec* u = this->Instance->FindNick(params[0]);
1938 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1941 std::deque<std::string> par;
1942 par.push_back(params[1]);
1943 /* This is not required as one is sent in OnUserPostNick below
1945 //DoOneToMany(u->nick,"NICK",par);
1946 if (!u->ForceNickChange(params[1].c_str()))
1948 userrec::QuitUser(this->Instance, u, "Nickname collision");
1951 u->age = atoi(params[2].c_str());
1957 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1959 if (params.size() < 2)
1962 userrec* u = this->Instance->FindNick(params[0]);
1966 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
1967 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1972 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1974 if (params.size() < 1)
1977 std::string servermask = params[0];
1979 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
1981 this->Instance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1982 this->Instance->RehashServer();
1983 ReadConfiguration(false);
1985 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1989 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1991 if (params.size() != 2)
1994 std::string nick = params[0];
1995 userrec* u = this->Instance->FindNick(prefix);
1996 userrec* who = this->Instance->FindNick(nick);
2000 /* Prepend kill source, if we don't have one */
2001 std::string sourceserv = prefix;
2004 sourceserv = u->server;
2006 if (*(params[1].c_str()) != '[')
2008 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2010 std::string reason = params[1];
2011 params[1] = ":" + params[1];
2012 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2013 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2014 userrec::QuitUser(this->Instance,who,reason);
2019 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2021 if (params.size() < 1)
2024 if (params.size() == 1)
2026 TreeServer* ServerSource = FindServer(prefix);
2029 ServerSource->SetPingFlag();
2034 std::string forwardto = params[1];
2035 if (forwardto == this->Instance->Config->ServerName)
2038 * this is a PONG for us
2039 * if the prefix is a user, check theyre local, and if they are,
2040 * dump the PONG reply back to their fd. If its a server, do nowt.
2041 * Services might want to send these s->s, but we dont need to yet.
2043 userrec* u = this->Instance->FindNick(prefix);
2047 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2052 // not for us, pass it on :)
2053 DoOneToOne(prefix,"PONG",params,forwardto);
2060 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2062 if (params.size() < 3)
2065 TreeServer* ServerSource = FindServer(prefix);
2069 if (params[0] == "*")
2071 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2073 else if (*(params[0].c_str()) == '#')
2075 chanrec* c = this->Instance->FindChan(params[0]);
2078 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2081 else if (*(params[0].c_str()) != '#')
2083 userrec* u = this->Instance->FindNick(params[0]);
2086 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2091 params[2] = ":" + params[2];
2092 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2096 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2098 if (params.size() < 1)
2101 TreeServer* ServerSource = FindServer(prefix);
2105 ServerSource->SetVersion(params[0]);
2107 params[0] = ":" + params[0];
2108 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2112 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2114 if (params.size() < 1)
2117 userrec* u = this->Instance->FindNick(prefix);
2121 u->ChangeDisplayedHost(params[0].c_str());
2122 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2127 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2129 if (params.size() < 6)
2132 bool propogate = false;
2134 switch (*(params[0].c_str()))
2137 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2138 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2141 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2142 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2145 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2146 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2149 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2150 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2153 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2156 /* Just in case... */
2157 this->Instance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2162 /* Send it on its way */
2165 if (atoi(params[4].c_str()))
2167 this->Instance->WriteOpers("*** %s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
2171 this->Instance->WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2173 params[5] = ":" + params[5];
2174 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2176 if (!this->bursting)
2178 ServerInstance->Log(DEBUG,"Applying lines...");
2179 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2184 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2186 if (params.size() < 1)
2189 userrec* u = this->Instance->FindNick(prefix);
2193 u->ChangeName(params[0].c_str());
2194 params[0] = ":" + params[0];
2195 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2200 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2202 if (params.size() < 1)
2205 ServerInstance->Log(DEBUG,"In IDLE command");
2206 userrec* u = this->Instance->FindNick(prefix);
2210 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2211 // an incoming request
2212 if (params.size() == 1)
2214 userrec* x = this->Instance->FindNick(params[0]);
2215 if ((x) && (IS_LOCAL(x)))
2217 userrec* x = this->Instance->FindNick(params[0]);
2218 ServerInstance->Log(DEBUG,"Got IDLE");
2219 char signon[MAXBUF];
2221 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2222 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2223 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2224 std::deque<std::string> par;
2225 par.push_back(prefix);
2226 par.push_back(signon);
2227 par.push_back(idle);
2228 // ours, we're done, pass it BACK
2229 DoOneToOne(params[0],"IDLE",par,u->server);
2233 // not ours pass it on
2234 DoOneToOne(prefix,"IDLE",params,x->server);
2237 else if (params.size() == 3)
2239 std::string who_did_the_whois = params[0];
2240 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2241 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2243 ServerInstance->Log(DEBUG,"Got final IDLE");
2244 // an incoming reply to a whois we sent out
2245 std::string nick_whoised = prefix;
2246 unsigned long signon = atoi(params[1].c_str());
2247 unsigned long idle = atoi(params[2].c_str());
2248 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2249 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2253 // not ours, pass it on
2254 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2261 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2263 if (params.size() < 2)
2266 userrec* u = this->Instance->FindNick(params[0]);
2273 u->Write(params[1]);
2277 // continue the raw onwards
2278 params[1] = ":" + params[1];
2279 DoOneToOne(prefix,"PUSH",params,u->server);
2284 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2286 // :source.server TIME remote.server sendernick
2287 // :remote.server TIME source.server sendernick TS
2288 if (params.size() == 2)
2290 // someone querying our time?
2291 if (this->Instance->Config->ServerName == params[0])
2293 userrec* u = this->Instance->FindNick(params[1]);
2297 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2298 params.push_back(curtime);
2300 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2305 // not us, pass it on
2306 userrec* u = this->Instance->FindNick(params[1]);
2308 DoOneToOne(prefix,"TIME",params,params[0]);
2311 else if (params.size() == 3)
2313 // a response to a previous TIME
2314 userrec* u = this->Instance->FindNick(params[1]);
2315 if ((u) && (IS_LOCAL(u)))
2317 time_t rawtime = atol(params[2].c_str());
2318 struct tm * timeinfo;
2319 timeinfo = localtime(&rawtime);
2321 snprintf(tms,26,"%s",asctime(timeinfo));
2323 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2328 DoOneToOne(prefix,"TIME",params,u->server);
2334 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2336 if (params.size() < 1)
2339 if (params.size() == 1)
2341 std::string stufftobounce = params[0];
2342 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2347 std::string forwardto = params[1];
2348 if (forwardto == this->Instance->Config->ServerName)
2350 // this is a ping for us, send back PONG to the requesting server
2351 params[1] = params[0];
2352 params[0] = forwardto;
2353 DoOneToOne(forwardto,"PONG",params,params[1]);
2357 // not for us, pass it on :)
2358 DoOneToOne(prefix,"PING",params,forwardto);
2364 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2366 if (params.size() < 4)
2369 std::string servername = params[0];
2370 std::string password = params[1];
2371 // hopcount is not used for a remote server, we calculate this ourselves
2372 std::string description = params[3];
2373 TreeServer* ParentOfThis = FindServer(prefix);
2377 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2380 TreeServer* CheckDupe = FindServer(servername);
2383 this->WriteLine("ERROR :Server "+servername+" already exists!");
2384 this->Instance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2387 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2388 ParentOfThis->AddChild(Node);
2389 params[3] = ":" + params[3];
2390 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2391 this->Instance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2395 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2397 if (params.size() < 4)
2400 irc::string servername = params[0].c_str();
2401 std::string sname = params[0];
2402 std::string password = params[1];
2403 int hops = atoi(params[2].c_str());
2407 this->WriteLine("ERROR :Server too far away for authentication");
2408 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2411 std::string description = params[3];
2412 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2414 if ((x->Name == servername) && (x->RecvPass == password))
2416 TreeServer* CheckDupe = FindServer(sname);
2419 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2420 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2423 // Begin the sync here. this kickstarts the
2424 // other side, waiting in WAIT_AUTH_2 state,
2425 // into starting their burst, as it shows
2426 // that we're happy.
2427 this->LinkState = CONNECTED;
2428 // we should add the details of this server now
2429 // to the servers tree, as a child of the root
2431 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2432 TreeRoot->AddChild(Node);
2433 params[3] = ":" + params[3];
2434 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2435 this->bursting = true;
2436 this->DoBurst(Node);
2440 this->WriteLine("ERROR :Invalid credentials");
2441 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2445 bool Inbound_Server(std::deque<std::string> ¶ms)
2447 if (params.size() < 4)
2450 irc::string servername = params[0].c_str();
2451 std::string sname = params[0];
2452 std::string password = params[1];
2453 int hops = atoi(params[2].c_str());
2457 this->WriteLine("ERROR :Server too far away for authentication");
2458 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2461 std::string description = params[3];
2462 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2464 if ((x->Name == servername) && (x->RecvPass == password))
2466 TreeServer* CheckDupe = FindServer(sname);
2469 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2470 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2473 /* If the config says this link is encrypted, but the remote side
2474 * hasnt bothered to send the AES command before SERVER, then we
2475 * boot them off as we MUST have this connection encrypted.
2477 if ((x->EncryptionKey != "") && (!this->ctx_in))
2479 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2480 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2483 this->Instance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2484 this->InboundServerName = sname;
2485 this->InboundDescription = description;
2486 // this is good. Send our details: Our server name and description and hopcount of 0,
2487 // along with the sendpass from this block.
2488 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2489 // move to the next state, we are now waiting for THEM.
2490 this->LinkState = WAIT_AUTH_2;
2494 this->WriteLine("ERROR :Invalid credentials");
2495 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2499 void Split(std::string line, std::deque<std::string> &n)
2502 irc::tokenstream tokens(line);
2504 while ((param = tokens.GetToken()) != "")
2509 bool ProcessLine(std::string line)
2511 std::deque<std::string> params;
2512 irc::string command;
2518 line = line.substr(0, line.find_first_of("\r\n"));
2520 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2522 this->Split(line.c_str(),params);
2524 if ((params[0][0] == ':') && (params.size() > 1))
2526 prefix = params[0].substr(1);
2530 command = params[0].c_str();
2533 if ((!this->ctx_in) && (command == "AES"))
2535 std::string sserv = params[0];
2536 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2538 if ((x->EncryptionKey != "") && (x->Name == sserv))
2540 this->InitAES(x->EncryptionKey,sserv);
2546 else if ((this->ctx_in) && (command == "AES"))
2548 this->Instance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2551 switch (this->LinkState)
2556 // Waiting for SERVER command from remote server. Server initiating
2557 // the connection sends the first SERVER command, listening server
2558 // replies with theirs if its happy, then if the initiator is happy,
2559 // it starts to send its net sync, which starts the merge, otherwise
2560 // it sends an ERROR.
2561 if (command == "PASS")
2563 /* Silently ignored */
2565 else if (command == "SERVER")
2567 return this->Inbound_Server(params);
2569 else if (command == "ERROR")
2571 return this->Error(params);
2573 else if (command == "USER")
2575 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2578 else if (command == "CAPAB")
2580 return this->Capab(params);
2582 else if ((command == "U") || (command == "S"))
2584 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2589 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2594 // Waiting for start of other side's netmerge to say they liked our
2596 if (command == "SERVER")
2598 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2602 else if ((command == "U") || (command == "S"))
2604 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2607 else if (command == "BURST")
2611 /* If a time stamp is provided, try and check syncronization */
2612 time_t THEM = atoi(params[0].c_str());
2613 long delta = THEM-time(NULL);
2614 if ((delta < -600) || (delta > 600))
2616 this->Instance->WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
2617 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2620 else if ((delta < -60) || (delta > 60))
2622 this->Instance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2625 this->LinkState = CONNECTED;
2626 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2627 TreeRoot->AddChild(Node);
2629 params.push_back(InboundServerName);
2630 params.push_back("*");
2631 params.push_back("1");
2632 params.push_back(":"+InboundDescription);
2633 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2634 this->bursting = true;
2635 this->DoBurst(Node);
2637 else if (command == "ERROR")
2639 return this->Error(params);
2641 else if (command == "CAPAB")
2643 return this->Capab(params);
2648 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2652 if (command == "SERVER")
2654 // another server we connected to, which was in WAIT_AUTH_1 state,
2655 // has just sent us their credentials. If we get this far, theyre
2656 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2657 // if we're happy with this, we should send our netburst which
2658 // kickstarts the merge.
2659 return this->Outbound_Reply_Server(params);
2661 else if (command == "ERROR")
2663 return this->Error(params);
2667 // This is the 'authenticated' state, when all passwords
2668 // have been exchanged and anything past this point is taken
2673 std::string direction = prefix;
2674 userrec* t = this->Instance->FindNick(prefix);
2677 direction = t->server;
2679 TreeServer* route_back_again = BestRouteTo(direction);
2680 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2682 if (route_back_again)
2683 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2688 * When there is activity on the socket, reset the ping counter so
2689 * that we're not wasting bandwidth pinging an active server.
2691 route_back_again->SetNextPingTime(time(NULL) + 120);
2692 route_back_again->SetPingFlag();
2695 if (command == "SVSMODE")
2697 /* Services expects us to implement
2698 * SVSMODE. In inspircd its the same as
2703 std::string target = "";
2704 /* Yes, know, this is a mess. Its reasonably fast though as we're
2705 * working with std::string here.
2707 if ((command == "NICK") && (params.size() > 1))
2709 return this->IntroduceClient(prefix,params);
2711 else if (command == "FJOIN")
2713 return this->ForceJoin(prefix,params);
2715 else if (command == "STATS")
2717 return this->Stats(prefix, params);
2719 else if (command == "SERVER")
2721 return this->RemoteServer(prefix,params);
2723 else if (command == "ERROR")
2725 return this->Error(params);
2727 else if (command == "OPERTYPE")
2729 return this->OperType(prefix,params);
2731 else if (command == "FMODE")
2733 return this->ForceMode(prefix,params);
2735 else if (command == "KILL")
2737 return this->RemoteKill(prefix,params);
2739 else if (command == "FTOPIC")
2741 return this->ForceTopic(prefix,params);
2743 else if (command == "REHASH")
2745 return this->RemoteRehash(prefix,params);
2747 else if (command == "METADATA")
2749 return this->MetaData(prefix,params);
2751 else if (command == "PING")
2754 * We just got a ping from a server that's bursting.
2755 * This can't be right, so set them to not bursting, and
2756 * apply their lines.
2760 this->bursting = false;
2761 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2765 prefix = this->GetName();
2767 return this->LocalPing(prefix,params);
2769 else if (command == "PONG")
2772 * We just got a pong from a server that's bursting.
2773 * This can't be right, so set them to not bursting, and
2774 * apply their lines.
2778 this->bursting = false;
2779 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2783 prefix = this->GetName();
2785 return this->LocalPong(prefix,params);
2787 else if (command == "VERSION")
2789 return this->ServerVersion(prefix,params);
2791 else if (command == "FHOST")
2793 return this->ChangeHost(prefix,params);
2795 else if (command == "FNAME")
2797 return this->ChangeName(prefix,params);
2799 else if (command == "ADDLINE")
2801 return this->AddLine(prefix,params);
2803 else if (command == "SVSNICK")
2807 prefix = this->GetName();
2809 return this->ForceNick(prefix,params);
2811 else if (command == "IDLE")
2813 return this->Whois(prefix,params);
2815 else if (command == "PUSH")
2817 return this->Push(prefix,params);
2819 else if (command == "TIME")
2821 return this->Time(prefix,params);
2823 else if ((command == "KICK") && (IsServer(prefix)))
2825 std::string sourceserv = this->myhost;
2826 if (params.size() == 3)
2828 userrec* user = this->Instance->FindNick(params[1]);
2829 chanrec* chan = this->Instance->FindChan(params[0]);
2832 if (!chan->ServerKickUser(user, params[2].c_str(), false))
2833 /* Yikes, the channels gone! */
2837 if (this->InboundServerName != "")
2839 sourceserv = this->InboundServerName;
2841 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2843 else if (command == "SVSJOIN")
2847 prefix = this->GetName();
2849 return this->ServiceJoin(prefix,params);
2851 else if (command == "SQUIT")
2853 if (params.size() == 2)
2855 this->Squit(FindServer(params[0]),params[1]);
2859 else if (command == "ENDBURST")
2861 this->bursting = false;
2862 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2863 std::string sourceserv = this->myhost;
2864 if (this->InboundServerName != "")
2866 sourceserv = this->InboundServerName;
2868 this->Instance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2873 // not a special inter-server command.
2874 // Emulate the actual user doing the command,
2875 // this saves us having a huge ugly parser.
2876 userrec* who = this->Instance->FindNick(prefix);
2877 std::string sourceserv = this->myhost;
2878 if (this->InboundServerName != "")
2880 sourceserv = this->InboundServerName;
2884 if ((command == "NICK") && (params.size() > 0))
2886 /* On nick messages, check that the nick doesnt
2887 * already exist here. If it does, kill their copy,
2890 userrec* x = this->Instance->FindNick(params[0]);
2891 if ((x) && (x != who))
2893 std::deque<std::string> p;
2894 p.push_back(params[0]);
2895 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2896 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2898 p.push_back(prefix);
2899 p.push_back("Nickname collision");
2900 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2901 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2902 userrec* y = this->Instance->FindNick(prefix);
2905 userrec::QuitUser(this->Instance,y,"Nickname collision");
2907 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2911 target = who->server;
2912 const char* strparams[127];
2913 for (unsigned int q = 0; q < params.size(); q++)
2915 strparams[q] = params[q].c_str();
2917 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2919 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2925 // its not a user. Its either a server, or somethings screwed up.
2926 if (IsServer(prefix))
2928 target = this->Instance->Config->ServerName;
2932 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2936 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2945 virtual std::string GetName()
2947 std::string sourceserv = this->myhost;
2948 if (this->InboundServerName != "")
2950 sourceserv = this->InboundServerName;
2955 virtual void OnTimeout()
2957 if (this->LinkState == CONNECTING)
2959 this->Instance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2963 virtual void OnClose()
2965 // Connection closed.
2966 // If the connection is fully up (state CONNECTED)
2967 // then propogate a netsplit to all peers.
2968 std::string quitserver = this->myhost;
2969 if (this->InboundServerName != "")
2971 quitserver = this->InboundServerName;
2973 TreeServer* s = FindServer(quitserver);
2976 Squit(s,"Remote host closed the connection");
2978 this->Instance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2981 virtual int OnIncomingConnection(int newsock, char* ip)
2983 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2984 * or discovering if this port is the server port, we don't allow connections from any
2985 * IPs for which we don't have a link block.
2989 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
2992 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
2993 if (MatchCIDR(ip, (*i).c_str()))
2998 this->Instance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3003 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3004 this->Instance->AddSocket(s);
3009 /** This class is used to resolve server hostnames during /connect and autoconnect.
3010 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3011 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3012 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3013 * will have an IP address which we can then use to continue our connection.
3015 class ServernameResolver : public Resolver
3018 /** A copy of the Link tag info for what we're connecting to.
3019 * We take a copy, rather than using a pointer, just in case the
3020 * admin takes the tag away and rehashes while the domain is resolving.
3024 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3026 /* Nothing in here, folks */
3029 void OnLookupComplete(const std::string &result)
3031 /* Initiate the connection, now that we have an IP to use.
3032 * Passing a hostname directly to InspSocket causes it to
3033 * just bail and set its FD to -1.
3035 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3036 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3038 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3039 if (newsocket->GetFd() > -1)
3042 ServerInstance->AddSocket(newsocket);
3046 /* Something barfed, show the opers */
3047 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3053 void OnError(ResolverError e, const std::string &errormessage)
3056 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3060 class SecurityIPResolver : public Resolver
3065 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3069 void OnLookupComplete(const std::string &result)
3071 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3072 ValidIPs.push_back(result);
3075 void OnError(ResolverError e, const std::string &errormessage)
3077 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3081 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3083 for (unsigned int c = 0; c < list.size(); c++)
3085 if (list[c] == server)
3090 list.push_back(server);
3093 // returns a list of DIRECT servernames for a specific channel
3094 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3096 CUList *ulist = c->GetUsers();
3097 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3099 if (i->second->GetFd() < 0)
3101 TreeServer* best = BestRouteTo(i->second->server);
3103 AddThisServer(best,list);
3109 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3111 TreeServer* omitroute = BestRouteTo(omit);
3112 if ((command == "NOTICE") || (command == "PRIVMSG"))
3114 if (params.size() >= 2)
3117 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3119 params[0] = params[0].substr(1, params[0].length()-1);
3121 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3123 // special routing for private messages/notices
3124 userrec* d = ServerInstance->FindNick(params[0]);
3127 std::deque<std::string> par;
3128 par.push_back(params[0]);
3129 par.push_back(":"+params[1]);
3130 DoOneToOne(prefix,command.c_str(),par,d->server);
3134 else if (*(params[0].c_str()) == '$')
3136 std::deque<std::string> par;
3137 par.push_back(params[0]);
3138 par.push_back(":"+params[1]);
3139 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3144 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3145 chanrec* c = ServerInstance->FindChan(params[0]);
3148 std::deque<TreeServer*> list;
3149 GetListOfServersForChannel(c,list);
3150 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3151 unsigned int lsize = list.size();
3152 for (unsigned int i = 0; i < lsize; i++)
3154 TreeSocket* Sock = list[i]->GetSocket();
3155 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3157 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3158 Sock->WriteLine(data);
3166 unsigned int items = TreeRoot->ChildCount();
3167 for (unsigned int x = 0; x < items; x++)
3169 TreeServer* Route = TreeRoot->GetChild(x);
3170 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3172 TreeSocket* Sock = Route->GetSocket();
3173 Sock->WriteLine(data);
3179 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3181 TreeServer* omitroute = BestRouteTo(omit);
3182 std::string FullLine = ":" + prefix + " " + command;
3183 unsigned int words = params.size();
3184 for (unsigned int x = 0; x < words; x++)
3186 FullLine = FullLine + " " + params[x];
3188 unsigned int items = TreeRoot->ChildCount();
3189 for (unsigned int x = 0; x < items; x++)
3191 TreeServer* Route = TreeRoot->GetChild(x);
3192 // Send the line IF:
3193 // The route has a socket (its a direct connection)
3194 // The route isnt the one to be omitted
3195 // The route isnt the path to the one to be omitted
3196 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3198 TreeSocket* Sock = Route->GetSocket();
3199 Sock->WriteLine(FullLine);
3205 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3207 std::string FullLine = ":" + prefix + " " + command;
3208 unsigned int words = params.size();
3209 for (unsigned int x = 0; x < words; x++)
3211 FullLine = FullLine + " " + params[x];
3213 unsigned int items = TreeRoot->ChildCount();
3214 for (unsigned int x = 0; x < items; x++)
3216 TreeServer* Route = TreeRoot->GetChild(x);
3217 if (Route && Route->GetSocket())
3219 TreeSocket* Sock = Route->GetSocket();
3220 Sock->WriteLine(FullLine);
3226 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3228 std::string spfx = prefix;
3229 std::string scmd = command;
3230 return DoOneToMany(spfx, scmd, params);
3233 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3235 std::string spfx = prefix;
3236 std::string scmd = command;
3237 return DoOneToAllButSender(spfx, scmd, params, omit);
3240 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3242 TreeServer* Route = BestRouteTo(target);
3245 std::string FullLine = ":" + prefix + " " + command;
3246 unsigned int words = params.size();
3247 for (unsigned int x = 0; x < words; x++)
3249 FullLine = FullLine + " " + params[x];
3251 if (Route && Route->GetSocket())
3253 TreeSocket* Sock = Route->GetSocket();
3254 Sock->WriteLine(FullLine);
3264 std::vector<TreeSocket*> Bindings;
3266 void ReadConfiguration(bool rebind)
3268 Conf = new ConfigReader(ServerInstance);
3271 for (int j =0; j < Conf->Enumerate("bind"); j++)
3273 std::string Type = Conf->ReadValue("bind","type",j);
3274 std::string IP = Conf->ReadValue("bind","address",j);
3275 long Port = Conf->ReadInteger("bind","port",j,true);
3276 if (Type == "servers")
3282 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3283 if (listener->GetState() == I_LISTENING)
3285 ServerInstance->AddSocket(listener);
3286 Bindings.push_back(listener);
3290 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3297 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3298 HideULines = Conf->ReadFlag("options","hideulines",0);
3301 for (int j =0; j < Conf->Enumerate("link"); j++)
3304 std::string Allow = Conf->ReadValue("link","allowmask",j);
3305 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3306 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3307 L.Port = Conf->ReadInteger("link","port",j,true);
3308 L.SendPass = Conf->ReadValue("link","sendpass",j);
3309 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3310 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3311 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3312 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3313 L.NextConnectTime = time(NULL) + L.AutoConnect;
3314 /* Bugfix by brain, do not allow people to enter bad configurations */
3315 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3317 ValidIPs.push_back(L.IPAddr);
3320 ValidIPs.push_back(Allow);
3322 /* Needs resolving */
3324 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3328 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3329 ServerInstance->AddResolver(sr);
3331 catch (ModuleException& e)
3333 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3337 LinkBlocks.push_back(L);
3338 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3344 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3346 else if (L.RecvPass == "")
3348 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3350 else if (L.SendPass == "")
3352 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3354 else if (L.Name == "")
3356 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3360 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3368 class ModuleSpanningTree : public Module
3370 std::vector<TreeSocket*> Bindings;
3373 unsigned int max_local;
3374 unsigned int max_global;
3375 cmd_rconnect* command_rconnect;
3379 ModuleSpanningTree(InspIRCd* Me)
3380 : Module::Module(Me), max_local(0), max_global(0)
3385 ::ServerInstance = Me;
3387 // Create the root of the tree
3388 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3390 ReadConfiguration(true);
3392 command_rconnect = new cmd_rconnect(ServerInstance, this);
3393 ServerInstance->AddCommand(command_rconnect);
3396 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3398 std::string Parent = TreeRoot->GetName();
3399 if (Current->GetParent())
3401 Parent = Current->GetParent()->GetName();
3403 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3405 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3409 ShowLinks(Current->GetChild(q),user,hops+1);
3414 ShowLinks(Current->GetChild(q),user,hops+1);
3417 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3418 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3420 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());
3423 int CountLocalServs()
3425 return TreeRoot->ChildCount();
3430 return serverlist.size();
3433 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3435 ShowLinks(TreeRoot,user,0);
3436 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3440 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3442 unsigned int n_users = ServerInstance->UserCount();
3444 /* Only update these when someone wants to see them, more efficient */
3445 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3446 max_local = ServerInstance->LocalUserCount();
3447 if (n_users > max_global)
3448 max_global = n_users;
3450 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3451 if (ServerInstance->OperCount())
3452 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3453 if (ServerInstance->UnregisteredUserCount())
3454 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3455 if (ServerInstance->ChannelCount())
3456 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3457 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3458 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3459 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3463 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3465 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3469 for (int t = 0; t < depth; t++)
3471 matrix[line][t] = ' ';
3474 // For Aligning, we need to work out exactly how deep this thing is, and produce
3475 // a 'Spacer' String to compensate.
3478 memset(spacer,' ',40);
3479 if ((40 - Current->GetName().length() - depth) > 1) {
3480 spacer[40 - Current->GetName().length() - depth] = '\0';
3489 if (ServerInstance->clientlist.size() == 0) {
3490 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3495 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3497 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3498 totusers += Current->GetUserCount();
3500 strlcpy(&matrix[line][depth],text,80);
3502 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3504 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3508 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3513 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3519 int HandleStats(const char** parameters, int pcnt, userrec* user)
3523 /* Remote STATS, the server is within the 2nd parameter */
3524 std::deque<std::string> params;
3525 params.push_back(parameters[0]);
3526 params.push_back(parameters[1]);
3527 /* Send it out remotely, generate no reply yet */
3528 TreeServer* s = FindServerMask(parameters[1]);
3531 params[1] = s->GetName();
3532 DoOneToOne(user->nick, "STATS", params, s->GetName());
3536 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3543 // Ok, prepare to be confused.
3544 // After much mulling over how to approach this, it struck me that
3545 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3546 // keeping track of a ton of ascii characters, and line by line
3547 // under recursion working out where to place them using multiplications
3548 // and divisons, we instead render the map onto a backplane of characters
3549 // (a character matrix), then draw the branches as a series of "L" shapes
3550 // from the nodes. This is not only friendlier on CPU it uses less stack.
3552 void HandleMap(const char** parameters, int pcnt, userrec* user)
3554 // This array represents a virtual screen which we will
3555 // "scratch" draw to, as the console device of an irc
3556 // client does not provide for a proper terminal.
3558 float totservers = 0;
3559 char matrix[128][80];
3560 for (unsigned int t = 0; t < 128; t++)
3562 matrix[t][0] = '\0';
3565 // The only recursive bit is called here.
3566 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3567 // Process each line one by one. The algorithm has a limit of
3568 // 128 servers (which is far more than a spanning tree should have
3569 // anyway, so we're ok). This limit can be raised simply by making
3570 // the character matrix deeper, 128 rows taking 10k of memory.
3571 for (int l = 1; l < line; l++)
3573 // scan across the line looking for the start of the
3574 // servername (the recursive part of the algorithm has placed
3575 // the servers at indented positions depending on what they
3577 int first_nonspace = 0;
3578 while (matrix[l][first_nonspace] == ' ')
3583 // Draw the `- (corner) section: this may be overwritten by
3584 // another L shape passing along the same vertical pane, becoming
3585 // a |- (branch) section instead.
3586 matrix[l][first_nonspace] = '-';
3587 matrix[l][first_nonspace-1] = '`';
3589 // Draw upwards until we hit the parent server, causing possibly
3590 // other corners (`-) to become branches (|-)
3591 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3593 matrix[l2][first_nonspace-1] = '|';
3597 // dump the whole lot to the user. This is the easy bit, honest.
3598 for (int t = 0; t < line; t++)
3600 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3602 float avg_users = totusers / totservers;
3603 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);
3604 user->WriteServ("007 %s :End of /MAP",user->nick);
3608 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3610 TreeServer* s = FindServerMask(parameters[0]);
3615 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3618 TreeSocket* sock = s->GetSocket();
3621 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3622 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3623 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3624 ServerInstance->RemoveSocket(sock);
3628 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3633 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3638 int HandleTime(const char** parameters, int pcnt, userrec* user)
3640 if ((IS_LOCAL(user)) && (pcnt))
3642 TreeServer* found = FindServerMask(parameters[0]);
3645 // we dont' override for local server
3646 if (found == TreeRoot)
3649 std::deque<std::string> params;
3650 params.push_back(found->GetName());
3651 params.push_back(user->nick);
3652 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3656 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3662 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3664 if ((IS_LOCAL(user)) && (pcnt > 1))
3666 userrec* remote = ServerInstance->FindNick(parameters[1]);
3667 if ((remote) && (remote->GetFd() < 0))
3669 std::deque<std::string> params;
3670 params.push_back(parameters[1]);
3671 DoOneToOne(user->nick,"IDLE",params,remote->server);
3676 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3677 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3684 void DoPingChecks(time_t curtime)
3686 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3688 TreeServer* serv = TreeRoot->GetChild(j);
3689 TreeSocket* sock = serv->GetSocket();
3692 if (curtime >= serv->NextPingTime())
3694 if (serv->AnsweredLastPing())
3696 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3697 serv->SetNextPingTime(curtime + 120);
3701 // they didnt answer, boot them
3702 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3703 sock->Squit(serv,"Ping timeout");
3704 ServerInstance->RemoveSocket(sock);
3712 void AutoConnectServers(time_t curtime)
3714 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3716 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3718 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3719 x->NextConnectTime = curtime + x->AutoConnect;
3720 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3723 // an autoconnected server is not connected. Check if its time to connect it
3724 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3728 /* Do we already have an IP? If so, no need to resolve it. */
3729 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3731 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3732 if (newsocket->GetFd() > -1)
3734 ServerInstance->AddSocket(newsocket);
3738 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3746 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3747 ServerInstance->AddResolver(snr);
3749 catch (ModuleException& e)
3751 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3760 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3762 // we've already checked if pcnt > 0, so this is safe
3763 TreeServer* found = FindServerMask(parameters[0]);
3766 std::string Version = found->GetVersion();
3767 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3768 if (found == TreeRoot)
3770 std::stringstream out(ServerInstance->Config->data005);
3771 std::string token = "";
3772 std::string line5 = "";
3773 int token_counter = 0;
3778 line5 = line5 + token + " ";
3781 if ((token_counter >= 13) || (out.eof() == true))
3783 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3792 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3797 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3799 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3801 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
3803 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3806 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);
3809 /* Do we already have an IP? If so, no need to resolve it. */
3810 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3812 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3813 if (newsocket->GetFd() > -1)
3815 ServerInstance->AddSocket(newsocket);
3819 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3827 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
3828 ServerInstance->AddResolver(snr);
3830 catch (ModuleException& e)
3832 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3839 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());
3844 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3848 virtual int OnStats(char statschar, userrec* user, string_list &results)
3850 if (statschar == 'c')
3852 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3854 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');
3855 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
3857 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
3858 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);
3864 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3866 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3870 if (command == "CONNECT")
3872 return this->HandleConnect(parameters,pcnt,user);
3874 else if (command == "STATS")
3876 return this->HandleStats(parameters,pcnt,user);
3878 else if (command == "SQUIT")
3880 return this->HandleSquit(parameters,pcnt,user);
3882 else if (command == "MAP")
3884 this->HandleMap(parameters,pcnt,user);
3887 else if ((command == "TIME") && (pcnt > 0))
3889 return this->HandleTime(parameters,pcnt,user);
3891 else if (command == "LUSERS")
3893 this->HandleLusers(parameters,pcnt,user);
3896 else if (command == "LINKS")
3898 this->HandleLinks(parameters,pcnt,user);
3901 else if (command == "WHOIS")
3906 return this->HandleRemoteWhois(parameters,pcnt,user);
3909 else if ((command == "VERSION") && (pcnt > 0))
3911 this->HandleVersion(parameters,pcnt,user);
3914 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
3916 // this bit of code cleverly routes all module commands
3917 // to all remote severs *automatically* so that modules
3918 // can just handle commands locally, without having
3919 // to have any special provision in place for remote
3920 // commands and linking protocols.
3921 std::deque<std::string> params;
3923 for (int j = 0; j < pcnt; j++)
3925 if (strchr(parameters[j],' '))
3927 params.push_back(":" + std::string(parameters[j]));
3931 params.push_back(std::string(parameters[j]));
3934 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
3935 DoOneToMany(user->nick,command,params);
3940 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3942 TreeServer* s = FindServer(servername);
3945 description = s->GetDesc();
3949 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3951 if (IS_LOCAL(source))
3953 std::deque<std::string> params;
3954 params.push_back(dest->nick);
3955 params.push_back(channel->name);
3956 DoOneToMany(source->nick,"INVITE",params);
3960 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3962 std::deque<std::string> params;
3963 params.push_back(chan->name);
3964 params.push_back(":"+topic);
3965 DoOneToMany(user->nick,"TOPIC",params);
3968 virtual void OnWallops(userrec* user, const std::string &text)
3972 std::deque<std::string> params;
3973 params.push_back(":"+text);
3974 DoOneToMany(user->nick,"WALLOPS",params);
3978 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3980 if (target_type == TYPE_USER)
3982 userrec* d = (userrec*)dest;
3983 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
3985 std::deque<std::string> params;
3987 params.push_back(d->nick);
3988 params.push_back(":"+text);
3989 DoOneToOne(user->nick,"NOTICE",params,d->server);
3992 else if (target_type == TYPE_CHANNEL)
3996 chanrec *c = (chanrec*)dest;
3997 std::string cname = c->name;
3999 cname = status + cname;
4000 std::deque<TreeServer*> list;
4001 GetListOfServersForChannel(c,list);
4002 unsigned int ucount = list.size();
4003 for (unsigned int i = 0; i < ucount; i++)
4005 TreeSocket* Sock = list[i]->GetSocket();
4007 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4011 else if (target_type == TYPE_SERVER)
4015 char* target = (char*)dest;
4016 std::deque<std::string> par;
4017 par.push_back(target);
4018 par.push_back(":"+text);
4019 DoOneToMany(user->nick,"NOTICE",par);
4024 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4026 if (target_type == TYPE_USER)
4028 // route private messages which are targetted at clients only to the server
4029 // which needs to receive them
4030 userrec* d = (userrec*)dest;
4031 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4033 std::deque<std::string> params;
4035 params.push_back(d->nick);
4036 params.push_back(":"+text);
4037 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4040 else if (target_type == TYPE_CHANNEL)
4044 chanrec *c = (chanrec*)dest;
4045 std::string cname = c->name;
4047 cname = status + cname;
4048 std::deque<TreeServer*> list;
4049 GetListOfServersForChannel(c,list);
4050 unsigned int ucount = list.size();
4051 for (unsigned int i = 0; i < ucount; i++)
4053 TreeSocket* Sock = list[i]->GetSocket();
4055 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4059 else if (target_type == TYPE_SERVER)
4063 char* target = (char*)dest;
4064 std::deque<std::string> par;
4065 par.push_back(target);
4066 par.push_back(":"+text);
4067 DoOneToMany(user->nick,"PRIVMSG",par);
4072 virtual void OnBackgroundTimer(time_t curtime)
4074 AutoConnectServers(curtime);
4075 DoPingChecks(curtime);
4078 virtual void OnUserJoin(userrec* user, chanrec* channel)
4080 // Only do this for local users
4083 std::deque<std::string> params;
4085 params.push_back(channel->name);
4087 if (channel->GetUserCounter() > 1)
4089 // not the first in the channel
4090 DoOneToMany(user->nick,"JOIN",params);
4094 // first in the channel, set up their permissions
4095 // and the channel TS with FJOIN.
4097 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4099 params.push_back(channel->name);
4100 params.push_back(ts);
4101 params.push_back("@,"+std::string(user->nick));
4102 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4107 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4109 // only occurs for local clients
4110 if (user->registered != REG_ALL)
4112 std::deque<std::string> params;
4113 params.push_back(newhost);
4114 DoOneToMany(user->nick,"FHOST",params);
4117 virtual void OnChangeName(userrec* user, const std::string &gecos)
4119 // only occurs for local clients
4120 if (user->registered != REG_ALL)
4122 std::deque<std::string> params;
4123 params.push_back(gecos);
4124 DoOneToMany(user->nick,"FNAME",params);
4127 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4131 std::deque<std::string> params;
4132 params.push_back(channel->name);
4133 if (partmessage != "")
4134 params.push_back(":"+partmessage);
4135 DoOneToMany(user->nick,"PART",params);
4139 virtual void OnUserConnect(userrec* user)
4141 char agestr[MAXBUF];
4144 std::deque<std::string> params;
4145 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4146 params.push_back(agestr);
4147 params.push_back(user->nick);
4148 params.push_back(user->host);
4149 params.push_back(user->dhost);
4150 params.push_back(user->ident);
4151 params.push_back("+"+std::string(user->FormatModes()));
4152 params.push_back(user->GetIPString());
4153 params.push_back(":"+std::string(user->fullname));
4154 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4156 // User is Local, change needs to be reflected!
4157 TreeServer* SourceServer = FindServer(user->server);
4160 SourceServer->AddUserCount();
4166 virtual void OnUserQuit(userrec* user, const std::string &reason)
4168 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4170 std::deque<std::string> params;
4171 params.push_back(":"+reason);
4172 DoOneToMany(user->nick,"QUIT",params);
4174 // Regardless, We need to modify the user Counts..
4175 TreeServer* SourceServer = FindServer(user->server);
4178 SourceServer->DelUserCount();
4183 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4187 std::deque<std::string> params;
4188 params.push_back(user->nick);
4189 DoOneToMany(oldnick,"NICK",params);
4193 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4195 if ((source) && (IS_LOCAL(source)))
4197 std::deque<std::string> params;
4198 params.push_back(chan->name);
4199 params.push_back(user->nick);
4200 params.push_back(":"+reason);
4201 DoOneToMany(source->nick,"KICK",params);
4205 std::deque<std::string> params;
4206 params.push_back(chan->name);
4207 params.push_back(user->nick);
4208 params.push_back(":"+reason);
4209 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4213 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4215 std::deque<std::string> params;
4216 params.push_back(dest->nick);
4217 params.push_back(":"+reason);
4218 DoOneToMany(source->nick,"KILL",params);
4221 virtual void OnRehash(const std::string ¶meter)
4223 if (parameter != "")
4225 std::deque<std::string> params;
4226 params.push_back(parameter);
4227 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4229 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4231 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4232 ServerInstance->RehashServer();
4235 ReadConfiguration(false);
4238 // note: the protocol does not allow direct umode +o except
4239 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4241 virtual void OnOper(userrec* user, const std::string &opertype)
4245 std::deque<std::string> params;
4246 params.push_back(opertype);
4247 DoOneToMany(user->nick,"OPERTYPE",params);
4251 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4253 if (IS_LOCAL(source))
4256 snprintf(type,8,"%cLINE",linetype);
4257 std::string stype = type;
4260 char sduration[MAXBUF];
4261 snprintf(sduration,MAXBUF,"%ld",duration);
4262 std::deque<std::string> params;
4263 params.push_back(host);
4264 params.push_back(sduration);
4265 params.push_back(":"+reason);
4266 DoOneToMany(source->nick,stype,params);
4270 std::deque<std::string> params;
4271 params.push_back(host);
4272 DoOneToMany(source->nick,stype,params);
4277 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4279 OnLine(source,hostmask,true,'G',duration,reason);
4282 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4284 OnLine(source,ipmask,true,'Z',duration,reason);
4287 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4289 OnLine(source,nickmask,true,'Q',duration,reason);
4292 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4294 OnLine(source,hostmask,true,'E',duration,reason);
4297 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4299 OnLine(source,hostmask,false,'G',0,"");
4302 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4304 OnLine(source,ipmask,false,'Z',0,"");
4307 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4309 OnLine(source,nickmask,false,'Q',0,"");
4312 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4314 OnLine(source,hostmask,false,'E',0,"");
4317 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4319 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4321 if (target_type == TYPE_USER)
4323 userrec* u = (userrec*)dest;
4324 std::deque<std::string> params;
4325 params.push_back(u->nick);
4326 params.push_back(text);
4327 DoOneToMany(user->nick,"MODE",params);
4331 chanrec* c = (chanrec*)dest;
4332 std::deque<std::string> params;
4333 params.push_back(c->name);
4334 params.push_back(text);
4335 DoOneToMany(user->nick,"MODE",params);
4340 virtual void OnSetAway(userrec* user)
4344 std::deque<std::string> params;
4345 params.push_back(":"+std::string(user->awaymsg));
4346 DoOneToMany(user->nick,"AWAY",params);
4350 virtual void OnCancelAway(userrec* user)
4354 std::deque<std::string> params;
4356 DoOneToMany(user->nick,"AWAY",params);
4360 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4362 TreeSocket* s = (TreeSocket*)opaque;
4365 if (target_type == TYPE_USER)
4367 userrec* u = (userrec*)target;
4368 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4372 chanrec* c = (chanrec*)target;
4373 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4378 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4380 TreeSocket* s = (TreeSocket*)opaque;
4383 if (target_type == TYPE_USER)
4385 userrec* u = (userrec*)target;
4386 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4388 else if (target_type == TYPE_OTHER)
4390 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4392 else if (target_type == TYPE_CHANNEL)
4394 chanrec* c = (chanrec*)target;
4395 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4400 virtual void OnEvent(Event* event)
4402 if (event->GetEventID() == "send_metadata")
4404 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4405 if (params->size() < 3)
4407 (*params)[2] = ":" + (*params)[2];
4408 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4410 else if (event->GetEventID() == "send_mode")
4412 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4413 if (params->size() < 2)
4415 // Insert the TS value of the object, either userrec or chanrec
4417 userrec* a = ServerInstance->FindNick((*params)[0]);
4424 chanrec* a = ServerInstance->FindChan((*params)[0]);
4430 params->insert(params->begin() + 1,ConvToStr(ourTS));
4431 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4435 virtual ~ModuleSpanningTree()
4439 virtual Version GetVersion()
4441 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4444 void Implements(char* List)
4446 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4447 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4448 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4449 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4450 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4451 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4452 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4455 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4456 * so that any activity it sees is FINAL, e.g. we arent going to send out
4457 * a NICK message before m_cloaking has finished putting the +x on the user,
4459 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4460 * the module call queue.
4462 Priority Prioritize()
4464 return PRIORITY_LAST;
4469 class ModuleSpanningTreeFactory : public ModuleFactory
4472 ModuleSpanningTreeFactory()
4476 ~ModuleSpanningTreeFactory()
4480 virtual Module * CreateModule(InspIRCd* Me)
4482 TreeProtocolModule = new ModuleSpanningTree(Me);
4483 return TreeProtocolModule;
4489 extern "C" void * init_module( void )
4491 return new ModuleSpanningTreeFactory;