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);
1390 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;
1399 while ((*permissions) && (*permissions != ','))
1401 ModeHandler* mh = ServerInstance->Modes->FindPrefix(*permissions);
1405 charlcat(modestring,mh->GetModeChar(),MAXBUF);
1409 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
1410 this->WriteLine(std::string("ERROR :What?! You sent me a mode prefix i cant handle ('")+mh->GetModeChar()+"'). Closing connection to avoid desync.");
1418 /* Did they get any modes? How many times? */
1419 for (int k = 0; k < ntimes; k++)
1420 mode_users[modectr++] = usr;
1422 who = this->Instance->FindNick(usr);
1425 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1426 if (modectr >= (MAXMODES-1))
1428 /* theres a mode for this user. push them onto the mode queue, and flush it
1429 * if there are more than MAXMODES to go.
1431 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1433 /* We also always let u-lined clients win, no matter what the TS value */
1434 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1435 this->Instance->SendMode((const char**)mode_users,modectr,who);
1438 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1445 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1446 /* bouncy bouncy! */
1447 std::deque<std::string> params;
1448 /* modes are now being UNSET... */
1449 *mode_users[1] = '-';
1450 for (unsigned int x = 0; x < modectr; x++)
1454 params.push_back(ConvToStr(us->age));
1456 params.push_back(mode_users[x]);
1459 // tell everyone to bounce the modes. bad modes, bad!
1460 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1462 strcpy(mode_users[1],"+");
1468 /* there werent enough modes built up to flush it during FJOIN,
1469 * or, there are a number left over. flush them out.
1471 if ((modectr > 2) && (who) && (us))
1475 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1476 this->Instance->SendMode((const char**)mode_users,modectr,who);
1479 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1486 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1487 std::deque<std::string> params;
1488 *mode_users[1] = '-';
1489 for (unsigned int x = 0; x < modectr; x++)
1493 params.push_back(ConvToStr(us->age));
1495 params.push_back(mode_users[x]);
1497 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1503 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1505 if (params.size() >= 2)
1507 chanrec* c = this->Instance->FindChan(params[0]);
1510 time_t theirTS = atoi(params[1].c_str());
1511 time_t ourTS = c->age;
1512 if (ourTS >= theirTS)
1514 ServerInstance->Log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1519 DoOneToAllButSender(this->Instance->Config->ServerName,"SYNCTS",params,source);
1524 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1526 if (params.size() < 8)
1528 if (params.size() > 8)
1530 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1533 // NICK age nick host dhost ident +modes ip :gecos
1535 time_t age = atoi(params[0].c_str());
1537 /* This used to have a pretty craq'y loop doing the same thing,
1538 * now we just let the STL do the hard work (more efficiently)
1540 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1542 const char* tempnick = params[1].c_str();
1543 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1545 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1547 if (iter != this->Instance->clientlist.end())
1550 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);
1551 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1555 userrec* _new = new userrec(this->Instance);
1556 this->Instance->clientlist[tempnick] = _new;
1557 _new->SetFd(FD_MAGIC_NUMBER);
1558 strlcpy(_new->nick, tempnick,NICKMAX-1);
1559 strlcpy(_new->host, params[2].c_str(),63);
1560 strlcpy(_new->dhost, params[3].c_str(),63);
1561 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1562 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1563 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1564 _new->registered = REG_ALL;
1567 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1568 _new->modes[(*v)-65] = 1;
1570 if (params[6].find_first_of(":") != std::string::npos)
1571 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1573 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1575 this->Instance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1577 params[7] = ":" + params[7];
1578 DoOneToAllButSender(source,"NICK",params,source);
1580 // Increment the Source Servers User Count..
1581 TreeServer* SourceServer = FindServer(source);
1584 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1585 SourceServer->AddUserCount();
1591 /* Send one or more FJOINs for a channel of users.
1592 * If the length of a single line is more than 480-NICKMAX
1593 * in length, it is split over multiple lines.
1595 void SendFJoins(TreeServer* Current, chanrec* c)
1597 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1599 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1601 size_t dlen, curlen;
1602 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1604 char* ptr = list + dlen;
1606 CUList *ulist = c->GetUsers();
1607 std::vector<userrec*> specific_halfop;
1608 std::vector<userrec*> specific_voice;
1609 std::string modes = "";
1610 std::string params = "";
1612 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1614 // The first parameter gets a : before it
1615 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1622 if (curlen > (480-NICKMAX))
1624 this->WriteLine(list);
1625 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1633 this->WriteLine(list);
1635 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1638 params.append(b->data).append(" ");
1640 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1643 /* Send G, Q, Z and E lines */
1644 void SendXLines(TreeServer* Current)
1647 std::string n = this->Instance->Config->ServerName;
1648 const char* sn = n.c_str();
1650 /* Yes, these arent too nice looking, but they get the job done */
1651 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1653 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);
1654 this->WriteLine(data);
1656 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1658 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);
1659 this->WriteLine(data);
1661 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1663 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);
1664 this->WriteLine(data);
1666 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1668 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);
1669 this->WriteLine(data);
1671 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1673 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);
1674 this->WriteLine(data);
1676 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1678 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);
1679 this->WriteLine(data);
1681 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1683 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);
1684 this->WriteLine(data);
1686 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1688 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);
1689 this->WriteLine(data);
1693 /* Send channel modes and topics */
1694 void SendChannelModes(TreeServer* Current)
1697 std::deque<std::string> list;
1699 std::string n = this->Instance->Config->ServerName;
1700 const char* sn = n.c_str();
1701 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1703 SendFJoins(Current, c->second);
1704 if (*c->second->topic)
1706 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1707 this->WriteLine(data);
1709 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1711 c->second->GetExtList(list);
1712 for (unsigned int j = 0; j < list.size(); j++)
1714 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1719 /* send all users and their oper state/modes */
1720 void SendUsers(TreeServer* Current)
1723 std::deque<std::string> list;
1725 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1727 if (u->second->registered == REG_ALL)
1729 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);
1730 this->WriteLine(data);
1731 if (*u->second->oper)
1733 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1735 if (*u->second->awaymsg)
1737 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1739 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1741 u->second->GetExtList(list);
1742 for (unsigned int j = 0; j < list.size(); j++)
1744 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1750 /* This function is called when we want to send a netburst to a local
1751 * server. There is a set order we must do this, because for example
1752 * users require their servers to exist, and channels require their
1753 * users to exist. You get the idea.
1755 void DoBurst(TreeServer* s)
1757 std::string burst = "BURST "+ConvToStr(time(NULL));
1758 std::string endburst = "ENDBURST";
1759 // Because by the end of the netburst, it could be gone!
1760 std::string name = s->GetName();
1761 this->Instance->WriteOpers("*** Bursting to \2"+name+"\2.");
1762 this->WriteLine(burst);
1763 /* send our version string */
1764 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1765 /* Send server tree */
1766 this->SendServers(TreeRoot,s,1);
1767 /* Send users and their oper status */
1769 /* Send everything else (channel modes, xlines etc) */
1770 this->SendChannelModes(s);
1771 this->SendXLines(s);
1772 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1773 this->WriteLine(endburst);
1774 this->Instance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1777 /* This function is called when we receive data from a remote
1778 * server. We buffer the data in a std::string (it doesnt stay
1779 * there for long), reading using InspSocket::Read() which can
1780 * read up to 16 kilobytes in one operation.
1782 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1783 * THE SOCKET OBJECT FOR US.
1785 virtual bool OnDataReady()
1787 char* data = this->Read();
1788 /* Check that the data read is a valid pointer and it has some content */
1791 this->in_buffer.append(data);
1792 /* While there is at least one new line in the buffer,
1793 * do something useful (we hope!) with it.
1795 while (in_buffer.find("\n") != std::string::npos)
1797 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1798 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1799 if (ret.find("\r") != std::string::npos)
1800 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1801 /* Process this one, abort if it
1802 * didnt return true.
1808 memset(result,0,1024);
1810 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1811 /* ERROR + CAPAB is still allowed unencryped */
1812 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1814 int nbytes = from64tobits(out, ret.c_str(), 1024);
1815 if ((nbytes > 0) && (nbytes < 1024))
1817 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1818 ctx_in->Decrypt(out, result, nbytes, 0);
1819 for (int t = 0; t < nbytes; t++)
1820 if (result[t] == '\7') result[t] = 0;
1825 if (!this->ProcessLine(ret))
1827 ServerInstance->Log(DEBUG,"ProcessLine says no!");
1833 /* EAGAIN returns an empty but non-NULL string, so this
1834 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1836 return (data && !*data);
1839 int WriteLine(std::string line)
1841 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
1845 char result64[10240];
1846 if (this->keylength)
1848 // pad it to the key length
1849 int n = this->keylength - (line.length() % this->keylength);
1852 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);
1853 line.append(n,'\7');
1856 unsigned int ll = line.length();
1857 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1858 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1860 //int from64tobits(char *out, const char *in, int maxlen);
1862 return this->Write(line + "\r\n");
1865 /* Handle ERROR command */
1866 bool Error(std::deque<std::string> ¶ms)
1868 if (params.size() < 1)
1870 this->Instance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1871 /* we will return false to cause the socket to close. */
1875 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
1877 /* Get the reply to a STATS query if it matches this servername,
1878 * and send it back as a load of PUSH queries
1880 if (params.size() > 1)
1882 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
1884 /* It's for our server */
1885 string_list results;
1886 userrec* source = this->Instance->FindNick(prefix);
1889 std::deque<std::string> par;
1890 par.push_back(prefix);
1892 DoStats(this->Instance, *(params[0].c_str()), source, results);
1893 for (size_t i = 0; i < results.size(); i++)
1895 par[1] = "::" + results[i];
1896 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
1903 userrec* source = this->Instance->FindNick(prefix);
1905 DoOneToOne(prefix, "STATS", params, params[1]);
1912 /* Because the core won't let users or even SERVERS set +o,
1913 * we use the OPERTYPE command to do this.
1915 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1917 if (params.size() != 1)
1919 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1922 std::string opertype = params[0];
1923 userrec* u = this->Instance->FindNick(prefix);
1926 u->modes[UM_OPERATOR] = 1;
1927 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1928 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1933 /* Because Andy insists that services-compatible servers must
1934 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1936 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1938 if (params.size() < 3)
1941 userrec* u = this->Instance->FindNick(params[0]);
1945 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1948 std::deque<std::string> par;
1949 par.push_back(params[1]);
1950 /* This is not required as one is sent in OnUserPostNick below
1952 //DoOneToMany(u->nick,"NICK",par);
1953 if (!u->ForceNickChange(params[1].c_str()))
1955 userrec::QuitUser(this->Instance, u, "Nickname collision");
1958 u->age = atoi(params[2].c_str());
1964 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1966 if (params.size() < 2)
1969 userrec* u = this->Instance->FindNick(params[0]);
1973 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
1974 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1979 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1981 if (params.size() < 1)
1984 std::string servermask = params[0];
1986 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
1988 this->Instance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1989 this->Instance->RehashServer();
1990 ReadConfiguration(false);
1992 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1996 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1998 if (params.size() != 2)
2001 std::string nick = params[0];
2002 userrec* u = this->Instance->FindNick(prefix);
2003 userrec* who = this->Instance->FindNick(nick);
2007 /* Prepend kill source, if we don't have one */
2008 std::string sourceserv = prefix;
2011 sourceserv = u->server;
2013 if (*(params[1].c_str()) != '[')
2015 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2017 std::string reason = params[1];
2018 params[1] = ":" + params[1];
2019 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2020 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2021 userrec::QuitUser(this->Instance,who,reason);
2026 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2028 if (params.size() < 1)
2031 if (params.size() == 1)
2033 TreeServer* ServerSource = FindServer(prefix);
2036 ServerSource->SetPingFlag();
2041 std::string forwardto = params[1];
2042 if (forwardto == this->Instance->Config->ServerName)
2045 * this is a PONG for us
2046 * if the prefix is a user, check theyre local, and if they are,
2047 * dump the PONG reply back to their fd. If its a server, do nowt.
2048 * Services might want to send these s->s, but we dont need to yet.
2050 userrec* u = this->Instance->FindNick(prefix);
2054 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2059 // not for us, pass it on :)
2060 DoOneToOne(prefix,"PONG",params,forwardto);
2067 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2069 if (params.size() < 3)
2072 TreeServer* ServerSource = FindServer(prefix);
2076 if (params[0] == "*")
2078 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2080 else if (*(params[0].c_str()) == '#')
2082 chanrec* c = this->Instance->FindChan(params[0]);
2085 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2088 else if (*(params[0].c_str()) != '#')
2090 userrec* u = this->Instance->FindNick(params[0]);
2093 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2098 params[2] = ":" + params[2];
2099 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2103 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2105 if (params.size() < 1)
2108 TreeServer* ServerSource = FindServer(prefix);
2112 ServerSource->SetVersion(params[0]);
2114 params[0] = ":" + params[0];
2115 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2119 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2121 if (params.size() < 1)
2124 userrec* u = this->Instance->FindNick(prefix);
2128 u->ChangeDisplayedHost(params[0].c_str());
2129 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2134 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2136 if (params.size() < 6)
2139 bool propogate = false;
2141 switch (*(params[0].c_str()))
2144 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2145 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2148 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2149 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2152 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2153 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2156 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2157 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2160 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2163 /* Just in case... */
2164 this->Instance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2169 /* Send it on its way */
2172 if (atoi(params[4].c_str()))
2174 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());
2178 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());
2180 params[5] = ":" + params[5];
2181 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2183 if (!this->bursting)
2185 ServerInstance->Log(DEBUG,"Applying lines...");
2186 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2191 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2193 if (params.size() < 1)
2196 userrec* u = this->Instance->FindNick(prefix);
2200 u->ChangeName(params[0].c_str());
2201 params[0] = ":" + params[0];
2202 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2207 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2209 if (params.size() < 1)
2212 ServerInstance->Log(DEBUG,"In IDLE command");
2213 userrec* u = this->Instance->FindNick(prefix);
2217 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2218 // an incoming request
2219 if (params.size() == 1)
2221 userrec* x = this->Instance->FindNick(params[0]);
2222 if ((x) && (IS_LOCAL(x)))
2224 userrec* x = this->Instance->FindNick(params[0]);
2225 ServerInstance->Log(DEBUG,"Got IDLE");
2226 char signon[MAXBUF];
2228 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2229 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2230 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2231 std::deque<std::string> par;
2232 par.push_back(prefix);
2233 par.push_back(signon);
2234 par.push_back(idle);
2235 // ours, we're done, pass it BACK
2236 DoOneToOne(params[0],"IDLE",par,u->server);
2240 // not ours pass it on
2241 DoOneToOne(prefix,"IDLE",params,x->server);
2244 else if (params.size() == 3)
2246 std::string who_did_the_whois = params[0];
2247 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2248 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2250 ServerInstance->Log(DEBUG,"Got final IDLE");
2251 // an incoming reply to a whois we sent out
2252 std::string nick_whoised = prefix;
2253 unsigned long signon = atoi(params[1].c_str());
2254 unsigned long idle = atoi(params[2].c_str());
2255 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2256 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2260 // not ours, pass it on
2261 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2268 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2270 if (params.size() < 2)
2273 userrec* u = this->Instance->FindNick(params[0]);
2280 u->Write(params[1]);
2284 // continue the raw onwards
2285 params[1] = ":" + params[1];
2286 DoOneToOne(prefix,"PUSH",params,u->server);
2291 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2293 // :source.server TIME remote.server sendernick
2294 // :remote.server TIME source.server sendernick TS
2295 if (params.size() == 2)
2297 // someone querying our time?
2298 if (this->Instance->Config->ServerName == params[0])
2300 userrec* u = this->Instance->FindNick(params[1]);
2304 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2305 params.push_back(curtime);
2307 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2312 // not us, pass it on
2313 userrec* u = this->Instance->FindNick(params[1]);
2315 DoOneToOne(prefix,"TIME",params,params[0]);
2318 else if (params.size() == 3)
2320 // a response to a previous TIME
2321 userrec* u = this->Instance->FindNick(params[1]);
2322 if ((u) && (IS_LOCAL(u)))
2324 time_t rawtime = atol(params[2].c_str());
2325 struct tm * timeinfo;
2326 timeinfo = localtime(&rawtime);
2328 snprintf(tms,26,"%s",asctime(timeinfo));
2330 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2335 DoOneToOne(prefix,"TIME",params,u->server);
2341 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2343 if (params.size() < 1)
2346 if (params.size() == 1)
2348 std::string stufftobounce = params[0];
2349 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2354 std::string forwardto = params[1];
2355 if (forwardto == this->Instance->Config->ServerName)
2357 // this is a ping for us, send back PONG to the requesting server
2358 params[1] = params[0];
2359 params[0] = forwardto;
2360 DoOneToOne(forwardto,"PONG",params,params[1]);
2364 // not for us, pass it on :)
2365 DoOneToOne(prefix,"PING",params,forwardto);
2371 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2373 if (params.size() < 4)
2376 std::string servername = params[0];
2377 std::string password = params[1];
2378 // hopcount is not used for a remote server, we calculate this ourselves
2379 std::string description = params[3];
2380 TreeServer* ParentOfThis = FindServer(prefix);
2384 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2387 TreeServer* CheckDupe = FindServer(servername);
2390 this->WriteLine("ERROR :Server "+servername+" already exists!");
2391 this->Instance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2394 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2395 ParentOfThis->AddChild(Node);
2396 params[3] = ":" + params[3];
2397 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2398 this->Instance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2402 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2404 if (params.size() < 4)
2407 irc::string servername = params[0].c_str();
2408 std::string sname = params[0];
2409 std::string password = params[1];
2410 int hops = atoi(params[2].c_str());
2414 this->WriteLine("ERROR :Server too far away for authentication");
2415 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2418 std::string description = params[3];
2419 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2421 if ((x->Name == servername) && (x->RecvPass == password))
2423 TreeServer* CheckDupe = FindServer(sname);
2426 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2427 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2430 // Begin the sync here. this kickstarts the
2431 // other side, waiting in WAIT_AUTH_2 state,
2432 // into starting their burst, as it shows
2433 // that we're happy.
2434 this->LinkState = CONNECTED;
2435 // we should add the details of this server now
2436 // to the servers tree, as a child of the root
2438 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2439 TreeRoot->AddChild(Node);
2440 params[3] = ":" + params[3];
2441 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2442 this->bursting = true;
2443 this->DoBurst(Node);
2447 this->WriteLine("ERROR :Invalid credentials");
2448 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2452 bool Inbound_Server(std::deque<std::string> ¶ms)
2454 if (params.size() < 4)
2457 irc::string servername = params[0].c_str();
2458 std::string sname = params[0];
2459 std::string password = params[1];
2460 int hops = atoi(params[2].c_str());
2464 this->WriteLine("ERROR :Server too far away for authentication");
2465 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2468 std::string description = params[3];
2469 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2471 if ((x->Name == servername) && (x->RecvPass == password))
2473 TreeServer* CheckDupe = FindServer(sname);
2476 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2477 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2480 /* If the config says this link is encrypted, but the remote side
2481 * hasnt bothered to send the AES command before SERVER, then we
2482 * boot them off as we MUST have this connection encrypted.
2484 if ((x->EncryptionKey != "") && (!this->ctx_in))
2486 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2487 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2490 this->Instance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2491 this->InboundServerName = sname;
2492 this->InboundDescription = description;
2493 // this is good. Send our details: Our server name and description and hopcount of 0,
2494 // along with the sendpass from this block.
2495 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2496 // move to the next state, we are now waiting for THEM.
2497 this->LinkState = WAIT_AUTH_2;
2501 this->WriteLine("ERROR :Invalid credentials");
2502 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2506 void Split(std::string line, std::deque<std::string> &n)
2509 irc::tokenstream tokens(line);
2511 while ((param = tokens.GetToken()) != "")
2516 bool ProcessLine(std::string line)
2518 std::deque<std::string> params;
2519 irc::string command;
2525 line = line.substr(0, line.find_first_of("\r\n"));
2527 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2529 this->Split(line.c_str(),params);
2531 if ((params[0][0] == ':') && (params.size() > 1))
2533 prefix = params[0].substr(1);
2537 command = params[0].c_str();
2540 if ((!this->ctx_in) && (command == "AES"))
2542 std::string sserv = params[0];
2543 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2545 if ((x->EncryptionKey != "") && (x->Name == sserv))
2547 this->InitAES(x->EncryptionKey,sserv);
2553 else if ((this->ctx_in) && (command == "AES"))
2555 this->Instance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2558 switch (this->LinkState)
2563 // Waiting for SERVER command from remote server. Server initiating
2564 // the connection sends the first SERVER command, listening server
2565 // replies with theirs if its happy, then if the initiator is happy,
2566 // it starts to send its net sync, which starts the merge, otherwise
2567 // it sends an ERROR.
2568 if (command == "PASS")
2570 /* Silently ignored */
2572 else if (command == "SERVER")
2574 return this->Inbound_Server(params);
2576 else if (command == "ERROR")
2578 return this->Error(params);
2580 else if (command == "USER")
2582 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2585 else if (command == "CAPAB")
2587 return this->Capab(params);
2589 else if ((command == "U") || (command == "S"))
2591 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2596 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2601 // Waiting for start of other side's netmerge to say they liked our
2603 if (command == "SERVER")
2605 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2609 else if ((command == "U") || (command == "S"))
2611 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2614 else if (command == "BURST")
2618 /* If a time stamp is provided, try and check syncronization */
2619 time_t THEM = atoi(params[0].c_str());
2620 long delta = THEM-time(NULL);
2621 if ((delta < -600) || (delta > 600))
2623 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));
2624 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2627 else if ((delta < -60) || (delta > 60))
2629 this->Instance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2632 this->LinkState = CONNECTED;
2633 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2634 TreeRoot->AddChild(Node);
2636 params.push_back(InboundServerName);
2637 params.push_back("*");
2638 params.push_back("1");
2639 params.push_back(":"+InboundDescription);
2640 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2641 this->bursting = true;
2642 this->DoBurst(Node);
2644 else if (command == "ERROR")
2646 return this->Error(params);
2648 else if (command == "CAPAB")
2650 return this->Capab(params);
2655 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2659 if (command == "SERVER")
2661 // another server we connected to, which was in WAIT_AUTH_1 state,
2662 // has just sent us their credentials. If we get this far, theyre
2663 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2664 // if we're happy with this, we should send our netburst which
2665 // kickstarts the merge.
2666 return this->Outbound_Reply_Server(params);
2668 else if (command == "ERROR")
2670 return this->Error(params);
2674 // This is the 'authenticated' state, when all passwords
2675 // have been exchanged and anything past this point is taken
2680 std::string direction = prefix;
2681 userrec* t = this->Instance->FindNick(prefix);
2684 direction = t->server;
2686 TreeServer* route_back_again = BestRouteTo(direction);
2687 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2689 if (route_back_again)
2690 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2695 * When there is activity on the socket, reset the ping counter so
2696 * that we're not wasting bandwidth pinging an active server.
2698 route_back_again->SetNextPingTime(time(NULL) + 120);
2699 route_back_again->SetPingFlag();
2702 if (command == "SVSMODE")
2704 /* Services expects us to implement
2705 * SVSMODE. In inspircd its the same as
2710 std::string target = "";
2711 /* Yes, know, this is a mess. Its reasonably fast though as we're
2712 * working with std::string here.
2714 if ((command == "NICK") && (params.size() > 1))
2716 return this->IntroduceClient(prefix,params);
2718 else if (command == "FJOIN")
2720 return this->ForceJoin(prefix,params);
2722 else if (command == "STATS")
2724 return this->Stats(prefix, params);
2726 else if (command == "SERVER")
2728 return this->RemoteServer(prefix,params);
2730 else if (command == "ERROR")
2732 return this->Error(params);
2734 else if (command == "OPERTYPE")
2736 return this->OperType(prefix,params);
2738 else if (command == "FMODE")
2740 return this->ForceMode(prefix,params);
2742 else if (command == "KILL")
2744 return this->RemoteKill(prefix,params);
2746 else if (command == "FTOPIC")
2748 return this->ForceTopic(prefix,params);
2750 else if (command == "REHASH")
2752 return this->RemoteRehash(prefix,params);
2754 else if (command == "METADATA")
2756 return this->MetaData(prefix,params);
2758 else if (command == "PING")
2761 * We just got a ping from a server that's bursting.
2762 * This can't be right, so set them to not bursting, and
2763 * apply their lines.
2767 this->bursting = false;
2768 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2772 prefix = this->GetName();
2774 return this->LocalPing(prefix,params);
2776 else if (command == "PONG")
2779 * We just got a pong from a server that's bursting.
2780 * This can't be right, so set them to not bursting, and
2781 * apply their lines.
2785 this->bursting = false;
2786 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2790 prefix = this->GetName();
2792 return this->LocalPong(prefix,params);
2794 else if (command == "VERSION")
2796 return this->ServerVersion(prefix,params);
2798 else if (command == "FHOST")
2800 return this->ChangeHost(prefix,params);
2802 else if (command == "FNAME")
2804 return this->ChangeName(prefix,params);
2806 else if (command == "ADDLINE")
2808 return this->AddLine(prefix,params);
2810 else if (command == "SVSNICK")
2814 prefix = this->GetName();
2816 return this->ForceNick(prefix,params);
2818 else if (command == "IDLE")
2820 return this->Whois(prefix,params);
2822 else if (command == "PUSH")
2824 return this->Push(prefix,params);
2826 else if (command == "TIME")
2828 return this->Time(prefix,params);
2830 else if ((command == "KICK") && (IsServer(prefix)))
2832 std::string sourceserv = this->myhost;
2833 if (params.size() == 3)
2835 userrec* user = this->Instance->FindNick(params[1]);
2836 chanrec* chan = this->Instance->FindChan(params[0]);
2839 if (!chan->ServerKickUser(user, params[2].c_str(), false))
2840 /* Yikes, the channels gone! */
2844 if (this->InboundServerName != "")
2846 sourceserv = this->InboundServerName;
2848 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2850 else if (command == "SVSJOIN")
2854 prefix = this->GetName();
2856 return this->ServiceJoin(prefix,params);
2858 else if (command == "SQUIT")
2860 if (params.size() == 2)
2862 this->Squit(FindServer(params[0]),params[1]);
2866 else if (command == "ENDBURST")
2868 this->bursting = false;
2869 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2870 std::string sourceserv = this->myhost;
2871 if (this->InboundServerName != "")
2873 sourceserv = this->InboundServerName;
2875 this->Instance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2880 // not a special inter-server command.
2881 // Emulate the actual user doing the command,
2882 // this saves us having a huge ugly parser.
2883 userrec* who = this->Instance->FindNick(prefix);
2884 std::string sourceserv = this->myhost;
2885 if (this->InboundServerName != "")
2887 sourceserv = this->InboundServerName;
2891 if ((command == "NICK") && (params.size() > 0))
2893 /* On nick messages, check that the nick doesnt
2894 * already exist here. If it does, kill their copy,
2897 userrec* x = this->Instance->FindNick(params[0]);
2898 if ((x) && (x != who))
2900 std::deque<std::string> p;
2901 p.push_back(params[0]);
2902 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2903 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2905 p.push_back(prefix);
2906 p.push_back("Nickname collision");
2907 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
2908 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2909 userrec* y = this->Instance->FindNick(prefix);
2912 userrec::QuitUser(this->Instance,y,"Nickname collision");
2914 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2918 target = who->server;
2919 const char* strparams[127];
2920 for (unsigned int q = 0; q < params.size(); q++)
2922 strparams[q] = params[q].c_str();
2924 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2926 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2932 // its not a user. Its either a server, or somethings screwed up.
2933 if (IsServer(prefix))
2935 target = this->Instance->Config->ServerName;
2939 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2943 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2952 virtual std::string GetName()
2954 std::string sourceserv = this->myhost;
2955 if (this->InboundServerName != "")
2957 sourceserv = this->InboundServerName;
2962 virtual void OnTimeout()
2964 if (this->LinkState == CONNECTING)
2966 this->Instance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2970 virtual void OnClose()
2972 // Connection closed.
2973 // If the connection is fully up (state CONNECTED)
2974 // then propogate a netsplit to all peers.
2975 std::string quitserver = this->myhost;
2976 if (this->InboundServerName != "")
2978 quitserver = this->InboundServerName;
2980 TreeServer* s = FindServer(quitserver);
2983 Squit(s,"Remote host closed the connection");
2985 this->Instance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2988 virtual int OnIncomingConnection(int newsock, char* ip)
2990 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2991 * or discovering if this port is the server port, we don't allow connections from any
2992 * IPs for which we don't have a link block.
2996 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
2999 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3000 if (MatchCIDR(ip, (*i).c_str()))
3005 this->Instance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3010 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3011 this->Instance->AddSocket(s);
3016 /** This class is used to resolve server hostnames during /connect and autoconnect.
3017 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3018 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3019 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3020 * will have an IP address which we can then use to continue our connection.
3022 class ServernameResolver : public Resolver
3025 /** A copy of the Link tag info for what we're connecting to.
3026 * We take a copy, rather than using a pointer, just in case the
3027 * admin takes the tag away and rehashes while the domain is resolving.
3031 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3033 /* Nothing in here, folks */
3036 void OnLookupComplete(const std::string &result)
3038 /* Initiate the connection, now that we have an IP to use.
3039 * Passing a hostname directly to InspSocket causes it to
3040 * just bail and set its FD to -1.
3042 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3043 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3045 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3046 if (newsocket->GetFd() > -1)
3049 ServerInstance->AddSocket(newsocket);
3053 /* Something barfed, show the opers */
3054 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3060 void OnError(ResolverError e, const std::string &errormessage)
3063 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3067 class SecurityIPResolver : public Resolver
3072 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3076 void OnLookupComplete(const std::string &result)
3078 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3079 ValidIPs.push_back(result);
3082 void OnError(ResolverError e, const std::string &errormessage)
3084 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3088 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3090 for (unsigned int c = 0; c < list.size(); c++)
3092 if (list[c] == server)
3097 list.push_back(server);
3100 // returns a list of DIRECT servernames for a specific channel
3101 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3103 CUList *ulist = c->GetUsers();
3104 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3106 if (i->second->GetFd() < 0)
3108 TreeServer* best = BestRouteTo(i->second->server);
3110 AddThisServer(best,list);
3116 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3118 TreeServer* omitroute = BestRouteTo(omit);
3119 if ((command == "NOTICE") || (command == "PRIVMSG"))
3121 if (params.size() >= 2)
3124 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3126 params[0] = params[0].substr(1, params[0].length()-1);
3128 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3130 // special routing for private messages/notices
3131 userrec* d = ServerInstance->FindNick(params[0]);
3134 std::deque<std::string> par;
3135 par.push_back(params[0]);
3136 par.push_back(":"+params[1]);
3137 DoOneToOne(prefix,command.c_str(),par,d->server);
3141 else if (*(params[0].c_str()) == '$')
3143 std::deque<std::string> par;
3144 par.push_back(params[0]);
3145 par.push_back(":"+params[1]);
3146 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3151 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3152 chanrec* c = ServerInstance->FindChan(params[0]);
3155 std::deque<TreeServer*> list;
3156 GetListOfServersForChannel(c,list);
3157 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3158 unsigned int lsize = list.size();
3159 for (unsigned int i = 0; i < lsize; i++)
3161 TreeSocket* Sock = list[i]->GetSocket();
3162 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3164 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3165 Sock->WriteLine(data);
3173 unsigned int items = TreeRoot->ChildCount();
3174 for (unsigned int x = 0; x < items; x++)
3176 TreeServer* Route = TreeRoot->GetChild(x);
3177 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3179 TreeSocket* Sock = Route->GetSocket();
3181 Sock->WriteLine(data);
3187 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3189 TreeServer* omitroute = BestRouteTo(omit);
3190 std::string FullLine = ":" + prefix + " " + command;
3191 unsigned int words = params.size();
3192 for (unsigned int x = 0; x < words; x++)
3194 FullLine = FullLine + " " + params[x];
3196 unsigned int items = TreeRoot->ChildCount();
3197 for (unsigned int x = 0; x < items; x++)
3199 TreeServer* Route = TreeRoot->GetChild(x);
3200 // Send the line IF:
3201 // The route has a socket (its a direct connection)
3202 // The route isnt the one to be omitted
3203 // The route isnt the path to the one to be omitted
3204 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3206 TreeSocket* Sock = Route->GetSocket();
3208 Sock->WriteLine(FullLine);
3214 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3216 std::string FullLine = ":" + prefix + " " + command;
3217 unsigned int words = params.size();
3218 for (unsigned int x = 0; x < words; x++)
3220 FullLine = FullLine + " " + params[x];
3222 unsigned int items = TreeRoot->ChildCount();
3223 for (unsigned int x = 0; x < items; x++)
3225 TreeServer* Route = TreeRoot->GetChild(x);
3226 if (Route && Route->GetSocket())
3228 TreeSocket* Sock = Route->GetSocket();
3230 Sock->WriteLine(FullLine);
3236 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3238 std::string spfx = prefix;
3239 std::string scmd = command;
3240 return DoOneToMany(spfx, scmd, params);
3243 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3245 std::string spfx = prefix;
3246 std::string scmd = command;
3247 return DoOneToAllButSender(spfx, scmd, params, omit);
3250 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3252 TreeServer* Route = BestRouteTo(target);
3255 std::string FullLine = ":" + prefix + " " + command;
3256 unsigned int words = params.size();
3257 for (unsigned int x = 0; x < words; x++)
3259 FullLine = FullLine + " " + params[x];
3261 if (Route && Route->GetSocket())
3263 TreeSocket* Sock = Route->GetSocket();
3265 Sock->WriteLine(FullLine);
3275 std::vector<TreeSocket*> Bindings;
3277 void ReadConfiguration(bool rebind)
3279 Conf = new ConfigReader(ServerInstance);
3282 for (int j =0; j < Conf->Enumerate("bind"); j++)
3284 std::string Type = Conf->ReadValue("bind","type",j);
3285 std::string IP = Conf->ReadValue("bind","address",j);
3286 long Port = Conf->ReadInteger("bind","port",j,true);
3287 if (Type == "servers")
3293 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3294 if (listener->GetState() == I_LISTENING)
3296 ServerInstance->AddSocket(listener);
3297 Bindings.push_back(listener);
3301 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3308 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3309 HideULines = Conf->ReadFlag("options","hideulines",0);
3312 for (int j =0; j < Conf->Enumerate("link"); j++)
3315 std::string Allow = Conf->ReadValue("link","allowmask",j);
3316 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3317 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3318 L.Port = Conf->ReadInteger("link","port",j,true);
3319 L.SendPass = Conf->ReadValue("link","sendpass",j);
3320 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3321 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3322 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3323 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3324 L.NextConnectTime = time(NULL) + L.AutoConnect;
3325 /* Bugfix by brain, do not allow people to enter bad configurations */
3326 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3328 ValidIPs.push_back(L.IPAddr);
3331 ValidIPs.push_back(Allow);
3333 /* Needs resolving */
3335 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3339 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3340 ServerInstance->AddResolver(sr);
3342 catch (ModuleException& e)
3344 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3348 LinkBlocks.push_back(L);
3349 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3355 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3357 else if (L.RecvPass == "")
3359 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3361 else if (L.SendPass == "")
3363 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3365 else if (L.Name == "")
3367 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3371 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3379 class ModuleSpanningTree : public Module
3381 std::vector<TreeSocket*> Bindings;
3384 unsigned int max_local;
3385 unsigned int max_global;
3386 cmd_rconnect* command_rconnect;
3390 ModuleSpanningTree(InspIRCd* Me)
3391 : Module::Module(Me), max_local(0), max_global(0)
3396 ::ServerInstance = Me;
3398 // Create the root of the tree
3399 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3401 ReadConfiguration(true);
3403 command_rconnect = new cmd_rconnect(ServerInstance, this);
3404 ServerInstance->AddCommand(command_rconnect);
3407 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3409 std::string Parent = TreeRoot->GetName();
3410 if (Current->GetParent())
3412 Parent = Current->GetParent()->GetName();
3414 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3416 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3420 ShowLinks(Current->GetChild(q),user,hops+1);
3425 ShowLinks(Current->GetChild(q),user,hops+1);
3428 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3429 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3431 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());
3434 int CountLocalServs()
3436 return TreeRoot->ChildCount();
3441 return serverlist.size();
3444 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3446 ShowLinks(TreeRoot,user,0);
3447 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3451 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3453 unsigned int n_users = ServerInstance->UserCount();
3455 /* Only update these when someone wants to see them, more efficient */
3456 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3457 max_local = ServerInstance->LocalUserCount();
3458 if (n_users > max_global)
3459 max_global = n_users;
3461 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3462 if (ServerInstance->OperCount())
3463 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3464 if (ServerInstance->UnregisteredUserCount())
3465 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3466 if (ServerInstance->ChannelCount())
3467 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3468 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3469 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3470 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3474 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3476 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3480 for (int t = 0; t < depth; t++)
3482 matrix[line][t] = ' ';
3485 // For Aligning, we need to work out exactly how deep this thing is, and produce
3486 // a 'Spacer' String to compensate.
3489 memset(spacer,' ',40);
3490 if ((40 - Current->GetName().length() - depth) > 1) {
3491 spacer[40 - Current->GetName().length() - depth] = '\0';
3500 if (ServerInstance->clientlist.size() == 0) {
3501 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3506 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3508 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3509 totusers += Current->GetUserCount();
3511 strlcpy(&matrix[line][depth],text,80);
3513 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3515 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3519 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3524 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3530 int HandleStats(const char** parameters, int pcnt, userrec* user)
3534 /* Remote STATS, the server is within the 2nd parameter */
3535 std::deque<std::string> params;
3536 params.push_back(parameters[0]);
3537 params.push_back(parameters[1]);
3538 /* Send it out remotely, generate no reply yet */
3539 TreeServer* s = FindServerMask(parameters[1]);
3542 params[1] = s->GetName();
3543 DoOneToOne(user->nick, "STATS", params, s->GetName());
3547 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3554 // Ok, prepare to be confused.
3555 // After much mulling over how to approach this, it struck me that
3556 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3557 // keeping track of a ton of ascii characters, and line by line
3558 // under recursion working out where to place them using multiplications
3559 // and divisons, we instead render the map onto a backplane of characters
3560 // (a character matrix), then draw the branches as a series of "L" shapes
3561 // from the nodes. This is not only friendlier on CPU it uses less stack.
3563 void HandleMap(const char** parameters, int pcnt, userrec* user)
3565 // This array represents a virtual screen which we will
3566 // "scratch" draw to, as the console device of an irc
3567 // client does not provide for a proper terminal.
3569 float totservers = 0;
3570 char matrix[128][80];
3571 for (unsigned int t = 0; t < 128; t++)
3573 matrix[t][0] = '\0';
3576 // The only recursive bit is called here.
3577 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3578 // Process each line one by one. The algorithm has a limit of
3579 // 128 servers (which is far more than a spanning tree should have
3580 // anyway, so we're ok). This limit can be raised simply by making
3581 // the character matrix deeper, 128 rows taking 10k of memory.
3582 for (int l = 1; l < line; l++)
3584 // scan across the line looking for the start of the
3585 // servername (the recursive part of the algorithm has placed
3586 // the servers at indented positions depending on what they
3588 int first_nonspace = 0;
3589 while (matrix[l][first_nonspace] == ' ')
3594 // Draw the `- (corner) section: this may be overwritten by
3595 // another L shape passing along the same vertical pane, becoming
3596 // a |- (branch) section instead.
3597 matrix[l][first_nonspace] = '-';
3598 matrix[l][first_nonspace-1] = '`';
3600 // Draw upwards until we hit the parent server, causing possibly
3601 // other corners (`-) to become branches (|-)
3602 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3604 matrix[l2][first_nonspace-1] = '|';
3608 // dump the whole lot to the user. This is the easy bit, honest.
3609 for (int t = 0; t < line; t++)
3611 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3613 float avg_users = totusers / totservers;
3614 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);
3615 user->WriteServ("007 %s :End of /MAP",user->nick);
3619 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3621 TreeServer* s = FindServerMask(parameters[0]);
3626 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3629 TreeSocket* sock = s->GetSocket();
3632 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3633 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3634 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3635 ServerInstance->RemoveSocket(sock);
3639 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3644 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3649 int HandleTime(const char** parameters, int pcnt, userrec* user)
3651 if ((IS_LOCAL(user)) && (pcnt))
3653 TreeServer* found = FindServerMask(parameters[0]);
3656 // we dont' override for local server
3657 if (found == TreeRoot)
3660 std::deque<std::string> params;
3661 params.push_back(found->GetName());
3662 params.push_back(user->nick);
3663 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3667 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3673 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3675 if ((IS_LOCAL(user)) && (pcnt > 1))
3677 userrec* remote = ServerInstance->FindNick(parameters[1]);
3678 if ((remote) && (remote->GetFd() < 0))
3680 std::deque<std::string> params;
3681 params.push_back(parameters[1]);
3682 DoOneToOne(user->nick,"IDLE",params,remote->server);
3687 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3688 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3695 void DoPingChecks(time_t curtime)
3697 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3699 TreeServer* serv = TreeRoot->GetChild(j);
3700 TreeSocket* sock = serv->GetSocket();
3703 if (curtime >= serv->NextPingTime())
3705 if (serv->AnsweredLastPing())
3707 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3708 serv->SetNextPingTime(curtime + 120);
3712 // they didnt answer, boot them
3713 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3714 sock->Squit(serv,"Ping timeout");
3715 ServerInstance->RemoveSocket(sock);
3723 void AutoConnectServers(time_t curtime)
3725 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3727 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3729 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3730 x->NextConnectTime = curtime + x->AutoConnect;
3731 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3734 // an autoconnected server is not connected. Check if its time to connect it
3735 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3739 /* Do we already have an IP? If so, no need to resolve it. */
3740 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3742 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3743 if (newsocket->GetFd() > -1)
3745 ServerInstance->AddSocket(newsocket);
3749 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3757 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3758 ServerInstance->AddResolver(snr);
3760 catch (ModuleException& e)
3762 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3771 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3773 // we've already checked if pcnt > 0, so this is safe
3774 TreeServer* found = FindServerMask(parameters[0]);
3777 std::string Version = found->GetVersion();
3778 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3779 if (found == TreeRoot)
3781 std::stringstream out(ServerInstance->Config->data005);
3782 std::string token = "";
3783 std::string line5 = "";
3784 int token_counter = 0;
3789 line5 = line5 + token + " ";
3792 if ((token_counter >= 13) || (out.eof() == true))
3794 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3803 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3808 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3810 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3812 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
3814 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3817 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);
3820 /* Do we already have an IP? If so, no need to resolve it. */
3821 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3823 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3824 if (newsocket->GetFd() > -1)
3826 ServerInstance->AddSocket(newsocket);
3830 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3838 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
3839 ServerInstance->AddResolver(snr);
3841 catch (ModuleException& e)
3843 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3850 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());
3855 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3859 virtual int OnStats(char statschar, userrec* user, string_list &results)
3861 if (statschar == 'c')
3863 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3865 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');
3866 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
3868 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
3869 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);
3875 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
3877 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3881 if (command == "CONNECT")
3883 return this->HandleConnect(parameters,pcnt,user);
3885 else if (command == "STATS")
3887 return this->HandleStats(parameters,pcnt,user);
3889 else if (command == "SQUIT")
3891 return this->HandleSquit(parameters,pcnt,user);
3893 else if (command == "MAP")
3895 this->HandleMap(parameters,pcnt,user);
3898 else if ((command == "TIME") && (pcnt > 0))
3900 return this->HandleTime(parameters,pcnt,user);
3902 else if (command == "LUSERS")
3904 this->HandleLusers(parameters,pcnt,user);
3907 else if (command == "LINKS")
3909 this->HandleLinks(parameters,pcnt,user);
3912 else if (command == "WHOIS")
3917 return this->HandleRemoteWhois(parameters,pcnt,user);
3920 else if ((command == "VERSION") && (pcnt > 0))
3922 this->HandleVersion(parameters,pcnt,user);
3925 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
3927 // this bit of code cleverly routes all module commands
3928 // to all remote severs *automatically* so that modules
3929 // can just handle commands locally, without having
3930 // to have any special provision in place for remote
3931 // commands and linking protocols.
3932 std::deque<std::string> params;
3934 for (int j = 0; j < pcnt; j++)
3936 if (strchr(parameters[j],' '))
3938 params.push_back(":" + std::string(parameters[j]));
3942 params.push_back(std::string(parameters[j]));
3945 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
3946 DoOneToMany(user->nick,command,params);
3951 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3953 TreeServer* s = FindServer(servername);
3956 description = s->GetDesc();
3960 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3962 if (IS_LOCAL(source))
3964 std::deque<std::string> params;
3965 params.push_back(dest->nick);
3966 params.push_back(channel->name);
3967 DoOneToMany(source->nick,"INVITE",params);
3971 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3973 std::deque<std::string> params;
3974 params.push_back(chan->name);
3975 params.push_back(":"+topic);
3976 DoOneToMany(user->nick,"TOPIC",params);
3979 virtual void OnWallops(userrec* user, const std::string &text)
3983 std::deque<std::string> params;
3984 params.push_back(":"+text);
3985 DoOneToMany(user->nick,"WALLOPS",params);
3989 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3991 if (target_type == TYPE_USER)
3993 userrec* d = (userrec*)dest;
3994 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
3996 std::deque<std::string> params;
3998 params.push_back(d->nick);
3999 params.push_back(":"+text);
4000 DoOneToOne(user->nick,"NOTICE",params,d->server);
4003 else if (target_type == TYPE_CHANNEL)
4007 chanrec *c = (chanrec*)dest;
4008 std::string cname = c->name;
4010 cname = status + cname;
4011 std::deque<TreeServer*> list;
4012 GetListOfServersForChannel(c,list);
4013 unsigned int ucount = list.size();
4014 for (unsigned int i = 0; i < ucount; i++)
4016 TreeSocket* Sock = list[i]->GetSocket();
4018 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4022 else if (target_type == TYPE_SERVER)
4026 char* target = (char*)dest;
4027 std::deque<std::string> par;
4028 par.push_back(target);
4029 par.push_back(":"+text);
4030 DoOneToMany(user->nick,"NOTICE",par);
4035 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4037 if (target_type == TYPE_USER)
4039 // route private messages which are targetted at clients only to the server
4040 // which needs to receive them
4041 userrec* d = (userrec*)dest;
4042 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4044 std::deque<std::string> params;
4046 params.push_back(d->nick);
4047 params.push_back(":"+text);
4048 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4051 else if (target_type == TYPE_CHANNEL)
4055 chanrec *c = (chanrec*)dest;
4056 std::string cname = c->name;
4058 cname = status + cname;
4059 std::deque<TreeServer*> list;
4060 GetListOfServersForChannel(c,list);
4061 unsigned int ucount = list.size();
4062 for (unsigned int i = 0; i < ucount; i++)
4064 TreeSocket* Sock = list[i]->GetSocket();
4066 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4070 else if (target_type == TYPE_SERVER)
4074 char* target = (char*)dest;
4075 std::deque<std::string> par;
4076 par.push_back(target);
4077 par.push_back(":"+text);
4078 DoOneToMany(user->nick,"PRIVMSG",par);
4083 virtual void OnBackgroundTimer(time_t curtime)
4085 AutoConnectServers(curtime);
4086 DoPingChecks(curtime);
4089 virtual void OnUserJoin(userrec* user, chanrec* channel)
4091 // Only do this for local users
4094 std::deque<std::string> params;
4096 params.push_back(channel->name);
4098 if (channel->GetUserCounter() > 1)
4100 // not the first in the channel
4101 DoOneToMany(user->nick,"JOIN",params);
4105 // first in the channel, set up their permissions
4106 // and the channel TS with FJOIN.
4108 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4110 params.push_back(channel->name);
4111 params.push_back(ts);
4112 params.push_back("@,"+std::string(user->nick));
4113 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4118 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4120 // only occurs for local clients
4121 if (user->registered != REG_ALL)
4123 std::deque<std::string> params;
4124 params.push_back(newhost);
4125 DoOneToMany(user->nick,"FHOST",params);
4128 virtual void OnChangeName(userrec* user, const std::string &gecos)
4130 // only occurs for local clients
4131 if (user->registered != REG_ALL)
4133 std::deque<std::string> params;
4134 params.push_back(gecos);
4135 DoOneToMany(user->nick,"FNAME",params);
4138 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4142 std::deque<std::string> params;
4143 params.push_back(channel->name);
4144 if (partmessage != "")
4145 params.push_back(":"+partmessage);
4146 DoOneToMany(user->nick,"PART",params);
4150 virtual void OnUserConnect(userrec* user)
4152 char agestr[MAXBUF];
4155 std::deque<std::string> params;
4156 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4157 params.push_back(agestr);
4158 params.push_back(user->nick);
4159 params.push_back(user->host);
4160 params.push_back(user->dhost);
4161 params.push_back(user->ident);
4162 params.push_back("+"+std::string(user->FormatModes()));
4163 params.push_back(user->GetIPString());
4164 params.push_back(":"+std::string(user->fullname));
4165 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4167 // User is Local, change needs to be reflected!
4168 TreeServer* SourceServer = FindServer(user->server);
4171 SourceServer->AddUserCount();
4177 virtual void OnUserQuit(userrec* user, const std::string &reason)
4179 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4181 std::deque<std::string> params;
4182 params.push_back(":"+reason);
4183 DoOneToMany(user->nick,"QUIT",params);
4185 // Regardless, We need to modify the user Counts..
4186 TreeServer* SourceServer = FindServer(user->server);
4189 SourceServer->DelUserCount();
4194 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4198 std::deque<std::string> params;
4199 params.push_back(user->nick);
4200 DoOneToMany(oldnick,"NICK",params);
4204 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4206 if ((source) && (IS_LOCAL(source)))
4208 std::deque<std::string> params;
4209 params.push_back(chan->name);
4210 params.push_back(user->nick);
4211 params.push_back(":"+reason);
4212 DoOneToMany(source->nick,"KICK",params);
4216 std::deque<std::string> params;
4217 params.push_back(chan->name);
4218 params.push_back(user->nick);
4219 params.push_back(":"+reason);
4220 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4224 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4226 std::deque<std::string> params;
4227 params.push_back(dest->nick);
4228 params.push_back(":"+reason);
4229 DoOneToMany(source->nick,"KILL",params);
4232 virtual void OnRehash(const std::string ¶meter)
4234 if (parameter != "")
4236 std::deque<std::string> params;
4237 params.push_back(parameter);
4238 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4240 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4242 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4243 ServerInstance->RehashServer();
4246 ReadConfiguration(false);
4249 // note: the protocol does not allow direct umode +o except
4250 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4252 virtual void OnOper(userrec* user, const std::string &opertype)
4256 std::deque<std::string> params;
4257 params.push_back(opertype);
4258 DoOneToMany(user->nick,"OPERTYPE",params);
4262 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4264 if (IS_LOCAL(source))
4267 snprintf(type,8,"%cLINE",linetype);
4268 std::string stype = type;
4271 char sduration[MAXBUF];
4272 snprintf(sduration,MAXBUF,"%ld",duration);
4273 std::deque<std::string> params;
4274 params.push_back(host);
4275 params.push_back(sduration);
4276 params.push_back(":"+reason);
4277 DoOneToMany(source->nick,stype,params);
4281 std::deque<std::string> params;
4282 params.push_back(host);
4283 DoOneToMany(source->nick,stype,params);
4288 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4290 OnLine(source,hostmask,true,'G',duration,reason);
4293 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4295 OnLine(source,ipmask,true,'Z',duration,reason);
4298 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4300 OnLine(source,nickmask,true,'Q',duration,reason);
4303 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4305 OnLine(source,hostmask,true,'E',duration,reason);
4308 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4310 OnLine(source,hostmask,false,'G',0,"");
4313 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4315 OnLine(source,ipmask,false,'Z',0,"");
4318 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4320 OnLine(source,nickmask,false,'Q',0,"");
4323 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4325 OnLine(source,hostmask,false,'E',0,"");
4328 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4330 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4332 if (target_type == TYPE_USER)
4334 userrec* u = (userrec*)dest;
4335 std::deque<std::string> params;
4336 params.push_back(u->nick);
4337 params.push_back(text);
4338 DoOneToMany(user->nick,"MODE",params);
4342 chanrec* c = (chanrec*)dest;
4343 std::deque<std::string> params;
4344 params.push_back(c->name);
4345 params.push_back(text);
4346 DoOneToMany(user->nick,"MODE",params);
4351 virtual void OnSetAway(userrec* user)
4355 std::deque<std::string> params;
4356 params.push_back(":"+std::string(user->awaymsg));
4357 DoOneToMany(user->nick,"AWAY",params);
4361 virtual void OnCancelAway(userrec* user)
4365 std::deque<std::string> params;
4367 DoOneToMany(user->nick,"AWAY",params);
4371 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4373 TreeSocket* s = (TreeSocket*)opaque;
4376 if (target_type == TYPE_USER)
4378 userrec* u = (userrec*)target;
4379 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4383 chanrec* c = (chanrec*)target;
4384 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4389 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4391 TreeSocket* s = (TreeSocket*)opaque;
4394 if (target_type == TYPE_USER)
4396 userrec* u = (userrec*)target;
4397 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4399 else if (target_type == TYPE_OTHER)
4401 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4403 else if (target_type == TYPE_CHANNEL)
4405 chanrec* c = (chanrec*)target;
4406 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4411 virtual void OnEvent(Event* event)
4413 if (event->GetEventID() == "send_metadata")
4415 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4416 if (params->size() < 3)
4418 (*params)[2] = ":" + (*params)[2];
4419 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4421 else if (event->GetEventID() == "send_mode")
4423 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4424 if (params->size() < 2)
4426 // Insert the TS value of the object, either userrec or chanrec
4428 userrec* a = ServerInstance->FindNick((*params)[0]);
4435 chanrec* a = ServerInstance->FindChan((*params)[0]);
4441 params->insert(params->begin() + 1,ConvToStr(ourTS));
4442 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4446 virtual ~ModuleSpanningTree()
4450 virtual Version GetVersion()
4452 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4455 void Implements(char* List)
4457 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4458 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4459 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4460 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4461 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4462 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4463 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4466 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4467 * so that any activity it sees is FINAL, e.g. we arent going to send out
4468 * a NICK message before m_cloaking has finished putting the +x on the user,
4470 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4471 * the module call queue.
4473 Priority Prioritize()
4475 return PRIORITY_LAST;
4480 class ModuleSpanningTreeFactory : public ModuleFactory
4483 ModuleSpanningTreeFactory()
4487 ~ModuleSpanningTreeFactory()
4491 virtual Module * CreateModule(InspIRCd* Me)
4493 TreeProtocolModule = new ModuleSpanningTree(Me);
4494 return TreeProtocolModule;
4500 extern "C" void * init_module( void )
4502 return new ModuleSpanningTreeFactory;