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 */
19 #include "configreader.h"
23 #include "commands/cmd_whois.h"
24 #include "commands/cmd_stats.h"
31 /** If you make a change which breaks the protocol, increment this.
32 * If you completely change the protocol, completely change the number.
34 const long ProtocolVersion = 1101;
37 * The server list in InspIRCd is maintained as two structures
38 * which hold the data in different ways. Most of the time, we
39 * want to very quicky obtain three pieces of information:
41 * (1) The information on a server
42 * (2) The information on the server we must send data through
43 * to actually REACH the server we're after
44 * (3) Potentially, the child/parent objects of this server
46 * The InspIRCd spanning protocol provides easy access to these
47 * by storing the data firstly in a recursive structure, where
48 * each item references its parent item, and a dynamic list
49 * of child items, and another structure which stores the items
50 * hashed, linearly. This means that if we want to find a server
51 * by name quickly, we can look it up in the hash, avoiding
52 * any O(n) lookups. If however, during a split or sync, we want
53 * to apply an operation to a server, and any of its child objects
54 * we can resort to recursion to walk the tree structure.
55 * Any socket can have one of five states at any one time.
56 * The LISTENER state indicates a socket which is listening
57 * for connections. It cannot receive data itself, only incoming
59 * The CONNECTING state indicates an outbound socket which is
60 * waiting to be writeable.
61 * The WAIT_AUTH_1 state indicates the socket is outbound and
62 * has successfully connected, but has not yet sent and received
64 * The WAIT_AUTH_2 state indicates that the socket is inbound
65 * (allocated by a LISTENER) but has not yet sent and received
67 * The CONNECTED state represents a fully authorized, fully
70 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
72 /* Foward declarations */
76 class ModuleSpanningTree;
78 /* This hash_map holds the hash equivalent of the server
79 * tree, used for rapid linear lookups.
81 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
84 /** The Link class might as well be a struct,
85 * but this is C++ and we don't believe in structs (!).
86 * It holds the entire information of one <link>
87 * tag from the main config file. We maintain a list
88 * of them, and populate the list on rehash/load.
90 class Link : public classbase
98 unsigned long AutoConnect;
99 time_t NextConnectTime;
100 std::string EncryptionKey;
101 bool HiddenFromStats;
102 std::string FailOver;
106 /** Contains helper functions and variables for this module,
107 * and keeps them out of the global namespace
109 class SpanningTreeUtilities
114 InspIRCd* ServerInstance;
118 ModuleSpanningTree* Creator;
119 /** Flatten links and /MAP for non-opers
122 /** Hide U-Lined servers in /MAP and /LINKS
125 /** Announce TS changes to channels on merge
127 bool AnnounceTSChange;
128 /** Socket bindings for listening sockets
130 std::vector<TreeSocket*> Bindings;
131 /** This variable represents the root of the server tree
133 TreeServer *TreeRoot;
134 /** IPs allowed to link to us
136 std::vector<std::string> ValidIPs;
137 /** Hash of currently connected servers by name
139 server_hash serverlist;
140 /** Holds the data from the <link> tags in the conf
142 std::vector<Link> LinkBlocks;
144 /** Initialise utility class
146 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
147 /** Destroy class and free listeners etc
149 ~SpanningTreeUtilities();
150 /** Send a message from this server to one other local or remote
152 bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
153 /** Send a message from this server to all but one other, local or remote
155 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
156 /** Send a message from this server to all but one other, local or remote
158 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
159 /** Send a message from this server to all others
161 bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
162 /** Send a message from this server to all others
164 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
165 /** Send a message from this server to all others, without doing any processing on the command (e.g. send it as-is with colons and all)
167 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
168 /** Read the spanningtree module's tags from the config file
170 void ReadConfiguration(bool rebind);
171 /** Add a server to the server list for GetListOfServersForChannel
173 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list);
174 /** Compile a list of servers which contain members of channel c
176 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list);
177 /** Find a server by name
179 TreeServer* FindServer(const std::string &ServerName);
180 /** Find a route to a server by name
182 TreeServer* BestRouteTo(const std::string &ServerName);
183 /** Find a server by glob mask
185 TreeServer* FindServerMask(const std::string &ServerName);
186 /** Returns true if this is a server name we recognise
188 bool IsServer(const std::string &ServerName);
189 /** Attempt to connect to the failover link of link x
191 void DoFailOver(Link* x);
192 /** Find a link tag from a server name
194 Link* FindLink(const std::string& name);
198 /** Each server in the tree is represented by one class of
199 * type TreeServer. A locally connected TreeServer can
200 * have a class of type TreeSocket associated with it, for
201 * remote servers, the TreeSocket entry will be NULL.
202 * Each server also maintains a pointer to its parent
203 * (NULL if this server is ours, at the top of the tree)
204 * and a pointer to its "Route" (see the comments in the
205 * constructors below), and also a dynamic list of pointers
206 * to its children which can be iterated recursively
207 * if required. Creating or deleting objects of type
208 i* TreeServer automatically maintains the hash_map of
209 * TreeServer items, deleting and inserting them as they
210 * are created and destroyed.
212 class TreeServer : public classbase
214 InspIRCd* ServerInstance; /* Creator */
215 TreeServer* Parent; /* Parent entry */
216 TreeServer* Route; /* Route entry */
217 std::vector<TreeServer*> Children; /* List of child objects */
218 irc::string ServerName; /* Server's name */
219 std::string ServerDesc; /* Server's description */
220 std::string VersionString; /* Version string or empty string */
221 int UserCount; /* Not used in this version */
222 int OperCount; /* Not used in this version */
223 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
224 time_t NextPing; /* After this time, the server should be PINGed*/
225 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
226 SpanningTreeUtilities* Utils; /* Utility class */
230 /** We don't use this constructor. Its a dummy, and won't cause any insertion
231 * of the TreeServer into the hash_map. See below for the two we DO use.
233 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
239 UserCount = OperCount = 0;
240 VersionString = ServerInstance->GetVersionString();
243 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
244 * represents our own server. Therefore, it has no route, no parent, and
245 * no socket associated with it. Its version string is our own local version.
247 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
251 UserCount = ServerInstance->UserCount();
252 OperCount = ServerInstance->OperCount();
253 VersionString = ServerInstance->GetVersionString();
255 Socket = NULL; /* Fix by brain */
259 /** When we create a new server, we call this constructor to initialize it.
260 * This constructor initializes the server's Route and Parent, and sets up
261 * its ping counters so that it will be pinged one minute from now.
263 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
264 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
267 UserCount = OperCount = 0;
268 this->SetNextPingTime(time(NULL) + 60);
271 /* find the 'route' for this server (e.g. the one directly connected
272 * to the local server, which we can use to reach it)
274 * In the following example, consider we have just added a TreeServer
275 * class for server G on our network, of which we are server A.
276 * To route traffic to G (marked with a *) we must send the data to
277 * B (marked with a +) so this algorithm initializes the 'Route'
278 * value to point at whichever server traffic must be routed through
279 * to get here. If we were to try this algorithm with server B,
280 * the Route pointer would point at its own object ('this').
290 * We only run this algorithm when a server is created, as
291 * the routes remain constant while ever the server exists, and
292 * do not need to be re-calculated.
296 if (Route == Utils->TreeRoot)
302 while (this->Route->GetParent() != Utils->TreeRoot)
304 this->Route = Route->GetParent();
308 /* Because recursive code is slow and takes a lot of resources,
309 * we store two representations of the server tree. The first
310 * is a recursive structure where each server references its
311 * children and its parent, which is used for netbursts and
312 * netsplits to dump the whole dataset to the other server,
313 * and the second is used for very fast lookups when routing
314 * messages and is instead a hash_map, where each item can
315 * be referenced by its server name. The AddHashEntry()
316 * call below automatically inserts each TreeServer class
317 * into the hash_map as it is created. There is a similar
318 * maintainance call in the destructor to tidy up deleted
322 this->AddHashEntry();
325 int QuitUsers(const std::string &reason)
327 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
328 const char* reason_s = reason.c_str();
329 std::vector<userrec*> time_to_die;
330 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
332 if (!strcmp(n->second->server, this->ServerName.c_str()))
334 time_to_die.push_back(n->second);
337 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
339 userrec* a = (userrec*)*n;
340 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
342 userrec::QuitUser(ServerInstance,a,reason_s);
344 return time_to_die.size();
347 /** This method is used to add the structure to the
348 * hash_map for linear searches. It is only called
349 * by the constructors.
353 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
354 if (iter == Utils->serverlist.end())
355 Utils->serverlist[this->ServerName.c_str()] = this;
358 /** This method removes the reference to this object
359 * from the hash_map which is used for linear searches.
360 * It is only called by the default destructor.
364 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
365 if (iter != Utils->serverlist.end())
366 Utils->serverlist.erase(iter);
369 /** These accessors etc should be pretty self-
372 TreeServer* GetRoute()
377 std::string GetName()
379 return ServerName.c_str();
382 std::string GetDesc()
387 std::string GetVersion()
389 return VersionString;
392 void SetNextPingTime(time_t t)
395 LastPingWasGood = false;
398 time_t NextPingTime()
403 bool AnsweredLastPing()
405 return LastPingWasGood;
410 LastPingWasGood = true;
433 TreeSocket* GetSocket()
438 TreeServer* GetParent()
443 void SetVersion(const std::string &Version)
445 VersionString = Version;
448 unsigned int ChildCount()
450 return Children.size();
453 TreeServer* GetChild(unsigned int n)
455 if (n < Children.size())
457 /* Make sure they cant request
458 * an out-of-range object. After
459 * all we know what these programmer
460 * types are like *grin*.
470 void AddChild(TreeServer* Child)
472 Children.push_back(Child);
475 bool DelChild(TreeServer* Child)
477 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
488 /** Removes child nodes of this node, and of that node, etc etc.
489 * This is used during netsplits to automatically tidy up the
490 * server tree. It is slow, we don't use it for much else.
494 bool stillchildren = true;
495 while (stillchildren)
497 stillchildren = false;
498 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
500 TreeServer* s = (TreeServer*)*a;
504 stillchildren = true;
513 /* We'd better tidy up after ourselves, eh? */
514 this->DelHashEntry();
518 /** Yay for fast searches!
519 * This is hundreds of times faster than recursion
520 * or even scanning a linked list, especially when
521 * there are more than a few servers to deal with.
524 TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
526 server_hash::iterator iter;
527 iter = serverlist.find(ServerName.c_str());
528 if (iter != serverlist.end())
538 /** Returns the locally connected server we must route a
539 * message through to reach server 'ServerName'. This
540 * only applies to one-to-one and not one-to-many routing.
541 * See the comments for the constructor of TreeServer
544 TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
546 if (ServerName.c_str() == TreeRoot->GetName())
548 TreeServer* Found = FindServer(ServerName);
551 return Found->GetRoute();
559 /** Find the first server matching a given glob mask.
560 * Theres no find-using-glob method of hash_map [awwww :-(]
561 * so instead, we iterate over the list using an iterator
562 * and match each one until we get a hit. Yes its slow,
565 TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
567 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
569 if (match(i->first.c_str(),ServerName.c_str()))
575 /* A convenient wrapper that returns true if a server exists */
576 bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
578 return (FindServer(ServerName) != NULL);
584 class cmd_rconnect : public command_t
587 SpanningTreeUtilities* Utils;
589 cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
591 this->source = "m_spanningtree.so";
592 syntax = "<remote-server-mask> <servermask>";
595 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
597 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
598 /* Is this aimed at our server? */
599 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
601 /* Yes, initiate the given connect */
602 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
604 para[0] = parameters[1];
605 std::string original_command = std::string("CONNECT ") + parameters[1];
606 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
617 /** Every SERVER connection inbound or outbound is represented by
618 * an object of type TreeSocket.
619 * TreeSockets, being inherited from InspSocket, can be tied into
620 * the core socket engine, and we cn therefore receive activity events
621 * for them, just like activex objects on speed. (yes really, that
622 * is a technical term!) Each of these which relates to a locally
623 * connected server is assocated with it, by hooking it onto a
624 * TreeSocket class using its constructor. In this way, we can
625 * maintain a list of servers, some of which are directly connected,
626 * some of which are not.
628 class TreeSocket : public InspSocket
630 SpanningTreeUtilities* Utils;
632 std::string in_buffer;
633 ServerState LinkState;
634 std::string InboundServerName;
635 std::string InboundDescription;
637 int num_lost_servers;
639 bool LastPingWasGood;
643 unsigned int keylength;
644 std::string ModuleList;
645 std::map<std::string,std::string> CapKeys;
649 /** Because most of the I/O gubbins are encapsulated within
650 * InspSocket, we just call the superclass constructor for
651 * most of the action, and append a few of our own values
654 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
655 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
658 this->LinkState = LISTENER;
660 this->ctx_out = NULL;
663 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
664 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
667 this->LinkState = CONNECTING;
669 this->ctx_out = NULL;
672 /** When a listening socket gives us a new file descriptor,
673 * we must associate it with a socket without creating a new
674 * connection. This constructor is used for this purpose.
676 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip)
677 : InspSocket(SI, newfd, ip), Utils(Util)
679 this->LinkState = WAIT_AUTH_1;
681 this->ctx_out = NULL;
682 this->SendCapabilities();
693 void InitAES(std::string key,std::string SName)
700 Instance->Log(DEBUG,"Initialized AES key %s",key.c_str());
701 // key must be 16, 24, 32 etc bytes (multiple of 8)
702 keylength = key.length();
703 if (!(keylength == 16 || keylength == 24 || keylength == 32))
705 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
706 Instance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
710 if (this->GetState() != I_ERROR)
712 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
713 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\
714 \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);
715 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\
716 \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);
721 /** When an outbound connection finishes connecting, we receive
722 * this event, and must send our SERVER string to the other
723 * side. If the other side is happy, as outlined in the server
724 * to server docs on the inspircd.org site, the other side
725 * will then send back its own server string.
727 virtual bool OnConnected()
729 if (this->LinkState == CONNECTING)
731 /* we do not need to change state here. */
732 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
734 if (x->Name == this->myhost)
736 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
737 this->SendCapabilities();
738 if (x->EncryptionKey != "")
740 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
742 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
746 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
747 this->InitAES(x->EncryptionKey,x->Name.c_str());
750 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
751 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
756 /* There is a (remote) chance that between the /CONNECT and the connection
757 * being accepted, some muppet has removed the <link> block and rehashed.
758 * If that happens the connection hangs here until it's closed. Unlikely
759 * and rather harmless.
761 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
765 virtual void OnError(InspSocketError e)
767 /* We don't handle this method, because all our
768 * dirty work is done in OnClose() (see below)
769 * which is still called on error conditions too.
771 if (e == I_ERR_CONNECT)
773 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
774 Link* MyLink = Utils->FindLink(myhost);
776 Utils->DoFailOver(MyLink);
780 virtual int OnDisconnect()
782 /* For the same reason as above, we don't
783 * handle OnDisconnect()
788 /** Recursively send the server tree with distances as hops.
789 * This is used during network burst to inform the other server
790 * (and any of ITS servers too) of what servers we know about.
791 * If at any point any of these servers already exist on the other
792 * end, our connection may be terminated. The hopcounts given
793 * by this function are relative, this doesn't matter so long as
794 * they are all >1, as all the remote servers re-calculate them
795 * to be relative too, with themselves as hop 0.
797 void SendServers(TreeServer* Current, TreeServer* s, int hops)
800 for (unsigned int q = 0; q < Current->ChildCount(); q++)
802 TreeServer* recursive_server = Current->GetChild(q);
803 if (recursive_server != s)
805 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
806 this->WriteLine(command);
807 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
808 /* down to next level */
809 this->SendServers(recursive_server, s, hops+1);
814 std::string MyCapabilities()
816 std::vector<std::string> modlist;
817 std::string capabilities = "";
819 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
821 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
822 modlist.push_back(this->Instance->Config->module_names[i]);
824 sort(modlist.begin(),modlist.end());
825 for (unsigned int i = 0; i < modlist.size(); i++)
828 capabilities = capabilities + ",";
829 capabilities = capabilities + modlist[i];
834 void SendCapabilities()
836 irc::commasepstream modulelist(MyCapabilities());
838 this->WriteLine("CAPAB START");
840 /* Send module names, split at 509 length */
841 std::string item = "*";
842 std::string line = "CAPAB MODULES ";
843 while ((item = modulelist.GetToken()) != "")
845 if (line.length() + item.length() + 1 > 509)
847 this->WriteLine(line);
848 line = "CAPAB MODULES ";
851 if (line != "CAPAB MODULES ")
856 if (line != "CAPAB MODULES ")
857 this->WriteLine(line);
864 #ifdef SUPPORT_IP6LINKS
867 this->WriteLine("CAPAB CAPABILITIES :NICKMAX="+ConvToStr(NICKMAX)+" HALFOP="+ConvToStr(this->Instance->Config->AllowHalfop)+" CHANMAX="+ConvToStr(CHANMAX)+" MAXMODES="+ConvToStr(MAXMODES)+" IDENTMAX="+ConvToStr(IDENTMAX)+" MAXQUIT="+ConvToStr(MAXQUIT)+" MAXTOPIC="+ConvToStr(MAXTOPIC)+" MAXKICK="+ConvToStr(MAXKICK)+" MAXGECOS="+ConvToStr(MAXGECOS)+" MAXAWAY="+ConvToStr(MAXAWAY)+" IP6NATIVE="+ConvToStr(ip6)+" IP6SUPPORT="+ConvToStr(ip6support)+" PROTOCOL="+ConvToStr(ProtocolVersion));
869 this->WriteLine("CAPAB END");
872 /* Check a comma seperated list for an item */
873 bool HasItem(const std::string &list, const std::string &item)
875 irc::commasepstream seplist(list);
877 std::string item2 = "*";
878 while ((item2 = seplist.GetToken()) != "")
887 /* Isolate and return the elements that are different between two comma seperated lists */
888 std::string ListDifference(const std::string &one, const std::string &two)
890 irc::commasepstream list_one(one);
891 std::string item = "*";
892 std::string result = "";
893 while ((item = list_one.GetToken()) != "")
895 if (!HasItem(two, item))
904 bool Capab(const std::deque<std::string> ¶ms)
906 if (params.size() < 1)
908 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
912 if (params[0] == "START")
914 this->ModuleList = "";
915 this->CapKeys.clear();
917 else if (params[0] == "END")
919 std::string reason = "";
921 #ifdef SUPPORT_IP6LINKS
924 /* Compare ModuleList and check CapKeys...
925 * Maybe this could be tidier? -- Brain
927 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
929 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
932 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
936 diff = "this server:" + diff;
938 if (diff.length() == 12)
939 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
941 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
944 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
945 reason = "We don't both support linking to IPV6 servers";
947 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
948 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
950 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
951 reason = "Maximum nickname lengths differ or remote nickname length not specified";
953 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
955 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
957 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
961 reason = "Protocol version not specified";
965 if (((this->CapKeys.find("HALFOP") == this->CapKeys.end()) && (Instance->Config->AllowHalfop)) || ((this->CapKeys.find("HALFOP") != this->CapKeys.end()) && (this->CapKeys.find("HALFOP")->second != ConvToStr(Instance->Config->AllowHalfop))))
966 reason = "We don't both have halfop support enabled/disabled identically";
968 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
969 reason = "Maximum ident lengths differ or remote ident length not specified";
971 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
972 reason = "Maximum channel lengths differ or remote channel length not specified";
974 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
975 reason = "Maximum modes per line differ or remote modes per line not specified";
977 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
978 reason = "Maximum quit lengths differ or remote quit length not specified";
980 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
981 reason = "Maximum topic lengths differ or remote topic length not specified";
983 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
984 reason = "Maximum kick lengths differ or remote kick length not specified";
986 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
987 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
989 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
990 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
994 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
998 else if ((params[0] == "MODULES") && (params.size() == 2))
1000 if (!this->ModuleList.length())
1002 this->ModuleList.append(params[1]);
1006 this->ModuleList.append(",");
1007 this->ModuleList.append(params[1]);
1010 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1012 irc::tokenstream capabs(params[1]);
1013 std::string item = "*";
1014 while ((item = capabs.GetToken()) != "")
1016 /* Process each key/value pair */
1017 std::string::size_type equals = item.rfind('=');
1018 if (equals != std::string::npos)
1020 std::string var = item.substr(0, equals);
1021 std::string value = item.substr(equals+1, item.length());
1022 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1023 CapKeys[var] = value;
1031 /** This function forces this server to quit, removing this server
1032 * and any users on it (and servers and users below that, etc etc).
1033 * It's very slow and pretty clunky, but luckily unless your network
1034 * is having a REAL bad hair day, this function shouldnt be called
1035 * too many times a month ;-)
1037 void SquitServer(std::string &from, TreeServer* Current)
1039 /* recursively squit the servers attached to 'Current'.
1040 * We're going backwards so we don't remove users
1041 * while we still need them ;)
1043 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1045 TreeServer* recursive_server = Current->GetChild(q);
1046 this->SquitServer(from,recursive_server);
1048 /* Now we've whacked the kids, whack self */
1050 num_lost_users += Current->QuitUsers(from);
1053 /** This is a wrapper function for SquitServer above, which
1054 * does some validation first and passes on the SQUIT to all
1055 * other remaining servers.
1057 void Squit(TreeServer* Current, const std::string &reason)
1059 if ((Current) && (Current != Utils->TreeRoot))
1061 std::deque<std::string> params;
1062 params.push_back(Current->GetName());
1063 params.push_back(":"+reason);
1064 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1065 if (Current->GetParent() == Utils->TreeRoot)
1067 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1071 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1073 num_lost_servers = 0;
1075 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1076 SquitServer(from, Current);
1078 Current->GetParent()->DelChild(Current);
1080 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1084 Instance->Log(DEFAULT,"Squit from unknown server");
1088 /** FMODE command - server mode with timestamp checks */
1089 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1091 /* Chances are this is a 1.0 FMODE without TS */
1092 if (params.size() < 3)
1094 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
1099 std::string sourceserv;
1101 /* Are we dealing with an FMODE from a user, or from a server? */
1102 userrec* who = this->Instance->FindNick(source);
1105 /* FMODE from a user, set sourceserv to the users server name */
1106 sourceserv = who->server;
1110 /* FMODE from a server, create a fake user to receive mode feedback */
1111 who = new userrec(this->Instance);
1112 who->SetFd(FD_MAGIC_NUMBER);
1113 smode = true; /* Setting this flag tells us we should free the userrec later */
1114 sourceserv = source; /* Set sourceserv to the actual source string */
1116 const char* modelist[64];
1119 memset(&modelist,0,sizeof(modelist));
1120 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1124 /* The timestamp is in this position.
1125 * We don't want to pass that up to the
1126 * server->client protocol!
1128 TS = atoi(params[q].c_str());
1132 /* Everything else is fine to append to the modelist */
1133 modelist[n++] = params[q].c_str();
1137 /* Extract the TS value of the object, either userrec or chanrec */
1138 userrec* dst = this->Instance->FindNick(params[0]);
1139 chanrec* chan = NULL;
1147 chan = this->Instance->FindChan(params[0]);
1153 /* Oops, channel doesnt exist! */
1157 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1162 Instance->Log(DEBUG,"Entering TS equality check");
1163 ModeHandler* mh = NULL;
1164 unsigned long paramptr = 3;
1165 std::string to_bounce = "";
1166 std::string to_keep = "";
1167 std::vector<std::string> params_to_keep;
1168 std::string params_to_bounce = "";
1170 char cur_change = 1;
1171 char old_change = 0;
1172 char old_bounce_change = 0;
1173 /* Merge modes, basically do special stuff to mode with params */
1174 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1187 /* We only care about whats being set,
1188 * not whats being unset
1190 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1192 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1194 /* We only want to do special things to
1195 * modes with parameters, we are going to rewrite
1199 adding ? cur_change = '+' : cur_change = '-';
1201 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1203 /* The mode is set here, check which we should keep */
1206 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1208 if (which_to_keep == true)
1210 /* Keep ours, bounce theirs:
1211 * Send back ours to them and
1212 * drop their mode changs
1214 adding ? cur_change = '+' : cur_change = '-';
1215 if (cur_change != old_bounce_change)
1216 to_bounce += cur_change;
1218 old_bounce_change = cur_change;
1220 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1221 params_to_bounce.append(" ").append(ret.second);
1225 /* Keep theirs: Accept their mode change,
1228 adding ? cur_change = '+' : cur_change = '-';
1229 if (cur_change != old_change)
1230 to_keep += cur_change;
1232 old_change = cur_change;
1234 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1235 params_to_keep.push_back(params[paramptr]);
1240 /* Mode isnt set here, we want it */
1241 adding ? cur_change = '+' : cur_change = '-';
1242 if (cur_change != old_change)
1243 to_keep += cur_change;
1245 old_change = cur_change;
1247 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1248 params_to_keep.push_back(params[paramptr]);
1255 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1259 adding ? cur_change = '+' : cur_change = '-';
1261 /* Just keep this, safe to merge with no checks
1262 * it has no parameters
1265 if (cur_change != old_change)
1266 to_keep += cur_change;
1268 old_change = cur_change;
1270 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1272 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1273 params_to_keep.push_back(params[paramptr++]);
1280 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1284 /* Taking a mode away */
1285 adding ? cur_change = '+' : cur_change = '-';
1287 if (cur_change != old_change)
1288 to_keep += cur_change;
1290 old_change = cur_change;
1292 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1293 params_to_keep.push_back(params[paramptr++]);
1300 if (to_bounce.length())
1302 std::deque<std::string> newparams;
1303 newparams.push_back(params[0]);
1304 newparams.push_back(ConvToStr(ourTS));
1305 newparams.push_back(to_bounce+params_to_bounce);
1306 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1307 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1310 if (to_keep.length())
1314 modelist[0] = params[0].c_str();
1315 modelist[1] = to_keep.c_str();
1317 if (params_to_keep.size() > 0)
1319 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1321 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1322 modelist[n++] = params_to_keep[q].c_str();
1328 Instance->Log(DEBUG,"Send mode");
1329 this->Instance->SendMode(modelist, n, who);
1333 Instance->Log(DEBUG,"Send mode client");
1334 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1337 /* HOT POTATO! PASS IT ON! */
1338 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1342 /* U-lined servers always win regardless of their TS */
1343 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1345 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1346 * SHOULD accept it, if its clock is right.
1348 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1349 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1350 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1352 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1353 * writing the code. It took me a while to come up with this solution.
1355 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1358 std::deque<std::string> newparams; /* New parameter list we send back */
1359 newparams.push_back(params[0]); /* Target, user or channel */
1360 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1361 newparams.push_back(""); /* This contains the mode string. For now
1362 * it's empty, we fill it below.
1365 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1366 * set to avoid a desync here.
1368 std::string modebounce = "";
1371 ModeHandler* mh = NULL;
1372 char cur_change = 1;
1373 char old_change = 0;
1374 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1376 /* Iterate over all mode chars in the sent set */
1379 /* Adding or subtracting modes? */
1387 /* Find the mode handler for this mode */
1388 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1390 /* Got a mode handler?
1391 * This also prevents us bouncing modes we have no handler for.
1398 /* Does the mode require a parameter right now?
1399 * If it does, fetch it if we can
1401 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1404 /* Call the ModeSet method to determine if its set with the
1405 * given parameter here or not.
1407 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1409 /* XXX: Really. Dont ask.
1410 * Determine from if its set combined with what the current
1411 * 'state' is (adding or not) as to wether we should 'invert'
1412 * or 'reinforce' the mode change
1414 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1416 /* Quickly determine if we have 'flipped' from + to -,
1417 * or - to +, to prevent unneccessary +/- chars in the
1418 * output string that waste bandwidth
1420 if (cur_change != old_change)
1421 modebounce += cur_change;
1422 old_change = cur_change;
1424 /* Add the mode character to the output string */
1425 modebounce += mh->GetModeChar();
1427 /* We got a parameter back from ModeHandler::ModeSet,
1428 * are we supposed to be sending one out right now?
1430 if (ret.second.length())
1432 if (mh->GetNumParams(cur_change == '+') > 0)
1433 /* Yes we're supposed to be sending out
1434 * the parameter. Make sure it goes
1436 newparams.push_back(ret.second);
1444 /* Update the parameters for FMODE with the new 'bounced' string */
1445 newparams[2] = modebounce;
1446 /* Only send it back the way it came, no need to send it anywhere else */
1447 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1448 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1452 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1453 /* The server was ulined, but something iffy is up with the TS.
1454 * Sound the alarm bells!
1456 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1458 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());
1460 /* Allow the mode, route it to either server or user command handling */
1462 this->Instance->SendMode(modelist,n,who);
1464 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1466 /* HOT POTATO! PASS IT ON! */
1467 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1469 /* Are we supposed to free the userrec? */
1476 /** FTOPIC command */
1477 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1479 if (params.size() != 4)
1481 time_t ts = atoi(params[1].c_str());
1482 std::string nsource = source;
1484 chanrec* c = this->Instance->FindChan(params[0]);
1487 if ((ts >= c->topicset) || (!*c->topic))
1489 std::string oldtopic = c->topic;
1490 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1491 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1493 /* if the topic text is the same as the current topic,
1494 * dont bother to send the TOPIC command out, just silently
1495 * update the set time and set nick.
1497 if (oldtopic != params[3])
1499 userrec* user = this->Instance->FindNick(source);
1502 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1506 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1507 nsource = user->server;
1509 /* all done, send it on its way */
1510 params[3] = ":" + params[3];
1511 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1520 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1521 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1523 /* 1.1 FJOIN works as follows:
1525 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1526 * timestamp 'wins'. From this point on we will refer to this side as the
1527 * winner. The side with the higher timestamp loses, from this point on we
1528 * will call this side the loser or losing side. This should be familiar to
1529 * anyone who's dealt with dreamforge or TS6 before.
1531 * When two sides of a split heal and this occurs, the following things
1534 * If the timestamps are exactly equal, both sides merge their privilages
1535 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1536 * re-created during a split, this is safe to do.
1539 * If the timestamps are NOT equal, the losing side removes all privilage
1540 * modes from all of its users that currently exist in the channel, before
1541 * introducing new users into the channel which are listed in the FJOIN
1542 * command's parameters. This means, all modes +ohv, and privilages added
1543 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1544 * of the channel to match that of the winning side, and the modes of the
1545 * users of the winning side are merged in with the losing side. The loser
1546 * then sends out a set of FMODE commands which 'confirm' that it just
1547 * removed all privilage modes from its existing users, which allows for
1548 * services packages to still work correctly without needing to know the
1549 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1550 * a problem, and services packages must contain code which explicitly
1551 * behaves as TS6 does, removing ops from the losing side of a split where
1552 * neccessary within its internal records, as this state information is
1553 * not explicitly echoed out in that protocol.
1555 * The winning side on the other hand will ignore all user modes from the
1556 * losing side, so only its own modes get applied. Life is simple for those
1557 * who succeed at internets. :-)
1559 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1560 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1561 * you ask? Well, quite simply because we don't need to. They'll be sent
1562 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1563 * the losing side sends any modes for the channel which shouldnt win,
1564 * they wont as their timestamp will be too high :-)
1567 if (params.size() < 3)
1570 char first[MAXBUF]; /* The first parameter of the mode command */
1571 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1572 char* mode_users[127]; /* The values used by the mode command */
1573 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1574 mode_users[0] = first; /* Set this up to be our on-stack value */
1575 mode_users[1] = modestring; /* Same here as above */
1576 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1577 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1579 userrec* who = NULL; /* User we are currently checking */
1580 std::string channel = params[0]; /* Channel name, as a string */
1581 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1583 /* Try and find the channel */
1584 chanrec* chan = this->Instance->FindChan(channel);
1586 /* Initialize channel name in the mode parameters */
1587 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1589 /* default TS is a high value, which if we dont have this
1590 * channel will let the other side apply their modes.
1592 time_t ourTS = time(NULL)+600;
1594 /* Does this channel exist? if it does, get its REAL timestamp */
1598 /* In 1.1, if they have the newer channel, we immediately clear
1599 * all status modes from our users. We then accept their modes.
1600 * If WE have the newer channel its the other side's job to do this.
1601 * Note that this causes the losing server to send out confirming
1606 std::deque<std::string> param_list;
1611 /* Lower the TS here */
1612 if (Utils->AnnounceTSChange && chan)
1613 chan->WriteChannelWithServ(Instance->Config->ServerName,
1614 "TS for %s changed from %lu to %lu", chan->name, ourTS, TS);
1617 param_list.push_back(channel);
1618 /* Zap all the privilage modes on our side */
1619 this->RemoveStatus(Instance->Config->ServerName, param_list);
1622 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1623 irc::tokenstream users(params[2]);
1624 std::string item = "*";
1626 /* do this first, so our mode reversals are correctly received by other servers
1627 * if there is a TS collision.
1629 params[2] = ":" + params[2];
1630 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1632 /* Now, process every 'prefixes,nick' pair */
1635 /* Find next user */
1636 item = users.GetToken();
1638 const char* usr = item.c_str();
1640 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1641 * (is this even possible?) */
1644 const char* permissions = usr;
1646 char* nm = new char[MAXBUF];
1649 /* Iterate through all the prefix values, convert them from prefixes
1650 * to mode letters, and append them to the mode sequence
1652 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1654 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1657 /* This is a valid prefix */
1659 *tnm++ = mh->GetModeChar();
1663 /* Not a valid prefix...
1664 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1666 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1667 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1674 /* Null terminate modes */
1676 /* Advance past the comma, to the nick */
1679 /* Check the user actually exists */
1680 who = this->Instance->FindNick(usr);
1683 /* Did they get any modes? How many times? */
1684 strlcat(modestring, nm, MAXBUF);
1685 for (int k = 0; k < ntimes; k++)
1686 mode_users[modectr++] = strdup(usr);
1688 /* Free temporary buffer used for mode sequence */
1691 /* Check that the user's 'direction' is correct
1692 * based on the server sending the FJOIN. We must
1693 * check each nickname in turn, because the origin of
1694 * the FJOIN may be different to the origin of the nicks
1695 * in the command itself.
1697 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1698 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1700 /* Oh dear oh dear. */
1701 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1704 /* Finally, we can actually place the user into the channel.
1705 * We're sure its right. Final answer, phone a friend.
1707 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1709 /* Have we already queued up MAXMODES modes with parameters
1710 * (+qaohv) ready to be sent to the server?
1712 if (modectr >= (MAXMODES-1))
1714 /* Only actually give the users any status if we lost
1715 * the FJOIN or drew (equal timestamps).
1716 * It isn't actually possible for ourTS to be > TS here,
1717 * only possible to actually have ourTS == TS, or
1718 * ourTS < TS, because if we lost, we already lowered
1719 * our TS above before we entered this loop. We only
1720 * check >= as a safety measure, in case someone stuffed
1721 * up. If someone DID stuff up, it was most likely me.
1722 * Note: I do not like baseball bats in the face...
1726 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1727 this->Instance->SendMode((const char**)mode_users,modectr,who);
1729 /* Something stuffed up, and for some reason, the timestamp is
1730 * NOT lowered right now and should be. Lower it. Usually this
1731 * code won't be executed, doubtless someone will remove it some
1736 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1742 /* Reset all this back to defaults, and
1743 * free any ram we have left allocated.
1745 strcpy(mode_users[1],"+");
1746 for (unsigned int f = 2; f < modectr; f++)
1747 free(mode_users[f]);
1753 /* Remember to free this */
1755 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1756 * We don't try to process the nickname here (that WOULD cause a segfault because
1757 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1758 * in case somehow we're desynched, so that other users which might be able to see
1759 * the nickname get their fair chance to process it.
1761 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1767 /* there werent enough modes built up to flush it during FJOIN,
1768 * or, there are a number left over. flush them out.
1770 if ((modectr > 2) && (who) && (chan))
1774 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1775 this->Instance->SendMode((const char**)mode_users,modectr,who);
1776 /* Yet again, we can't actually get a true value here, if everything else
1777 * is working as it should.
1781 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1787 /* Free anything we have left to free */
1788 for (unsigned int f = 2; f < modectr; f++)
1789 free(mode_users[f]);
1792 /* All done. That wasnt so bad was it, you can wipe
1793 * the sweat from your forehead now. :-)
1799 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1801 if (params.size() < 8)
1803 if (params.size() > 8)
1805 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1808 // NICK age nick host dhost ident +modes ip :gecos
1810 time_t age = atoi(params[0].c_str());
1812 /* This used to have a pretty craq'y loop doing the same thing,
1813 * now we just let the STL do the hard work (more efficiently)
1815 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1816 if (pos_after_plus != std::string::npos)
1817 params[5] = params[5].substr(pos_after_plus);
1819 const char* tempnick = params[1].c_str();
1820 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1822 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1824 if (iter != this->Instance->clientlist.end())
1827 Instance->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);
1828 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1829 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1833 userrec* _new = new userrec(this->Instance);
1834 this->Instance->clientlist[tempnick] = _new;
1835 _new->SetFd(FD_MAGIC_NUMBER);
1836 strlcpy(_new->nick, tempnick,NICKMAX-1);
1837 strlcpy(_new->host, params[2].c_str(),63);
1838 strlcpy(_new->dhost, params[3].c_str(),63);
1839 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1840 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1841 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1842 _new->registered = REG_ALL;
1845 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1846 _new->modes[(*v)-65] = 1;
1848 #ifdef SUPPORT_IP6LINKS
1849 if (params[6].find_first_of(":") != std::string::npos)
1850 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1853 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1855 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1857 params[7] = ":" + params[7];
1858 Utils->DoOneToAllButSender(source,"NICK",params,source);
1860 // Increment the Source Servers User Count..
1861 TreeServer* SourceServer = Utils->FindServer(source);
1864 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1865 SourceServer->AddUserCount();
1868 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1873 /** Send one or more FJOINs for a channel of users.
1874 * If the length of a single line is more than 480-NICKMAX
1875 * in length, it is split over multiple lines.
1877 void SendFJoins(TreeServer* Current, chanrec* c)
1881 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1883 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1885 size_t dlen, curlen;
1886 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1888 char* ptr = list + dlen;
1890 CUList *ulist = c->GetUsers();
1891 std::string modes = "";
1892 std::string params = "";
1894 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1896 // The first parameter gets a : before it
1897 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1904 if (curlen > (480-NICKMAX))
1906 buffer.append(list).append("\r\n");
1908 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1916 buffer.append(list).append("\r\n");
1918 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1921 params.append(" ").append(b->data);
1923 if (params.length() >= MAXMODES)
1925 /* Wrap at MAXMODES */
1926 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
1932 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
1934 /* Only send these if there are any */
1936 buffer.append("\r\n").append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
1938 this->WriteLine(buffer);
1941 /** Send G, Q, Z and E lines */
1942 void SendXLines(TreeServer* Current)
1946 std::string n = this->Instance->Config->ServerName;
1947 const char* sn = n.c_str();
1949 /* Yes, these arent too nice looking, but they get the job done */
1950 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1952 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1953 buffer.append(data);
1955 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1957 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1958 buffer.append(data);
1960 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1962 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1963 buffer.append(data);
1965 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1967 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1968 buffer.append(data);
1970 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1972 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1973 buffer.append(data);
1975 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1977 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1978 buffer.append(data);
1980 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1982 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1983 buffer.append(data);
1985 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1987 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1988 buffer.append(data);
1991 if (!buffer.empty())
1992 this->WriteLine(buffer);
1995 /** Send channel modes and topics */
1996 void SendChannelModes(TreeServer* Current)
1999 std::deque<std::string> list;
2001 std::string n = this->Instance->Config->ServerName;
2002 const char* sn = n.c_str();
2003 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
2005 SendFJoins(Current, c->second);
2006 if (*c->second->topic)
2008 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2009 this->WriteLine(data);
2011 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2013 c->second->GetExtList(list);
2014 for (unsigned int j = 0; j < list.size(); j++)
2016 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2021 /** send all users and their oper state/modes */
2022 void SendUsers(TreeServer* Current)
2025 std::deque<std::string> list;
2026 std::string dataline;
2028 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2030 if (u->second->registered == REG_ALL)
2032 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);
2033 this->WriteLine(data);
2034 if (*u->second->oper)
2036 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2037 this->WriteLine(data);
2039 if (*u->second->awaymsg)
2041 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2042 this->WriteLine(data);
2044 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2046 u->second->GetExtList(list);
2047 for (unsigned int j = 0; j < list.size(); j++)
2049 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2055 /** This function is called when we want to send a netburst to a local
2056 * server. There is a set order we must do this, because for example
2057 * users require their servers to exist, and channels require their
2058 * users to exist. You get the idea.
2060 void DoBurst(TreeServer* s)
2062 std::string burst = "BURST "+ConvToStr(time(NULL));
2063 std::string endburst = "ENDBURST";
2064 // Because by the end of the netburst, it could be gone!
2065 std::string name = s->GetName();
2066 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2067 this->WriteLine(burst);
2068 /* send our version string */
2069 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2070 /* Send server tree */
2071 this->SendServers(Utils->TreeRoot,s,1);
2072 /* Send users and their oper status */
2074 /* Send everything else (channel modes, xlines etc) */
2075 this->SendChannelModes(s);
2076 this->SendXLines(s);
2077 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2078 this->WriteLine(endburst);
2079 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2082 /** This function is called when we receive data from a remote
2083 * server. We buffer the data in a std::string (it doesnt stay
2084 * there for long), reading using InspSocket::Read() which can
2085 * read up to 16 kilobytes in one operation.
2087 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2088 * THE SOCKET OBJECT FOR US.
2090 virtual bool OnDataReady()
2092 char* data = this->Read();
2093 /* Check that the data read is a valid pointer and it has some content */
2096 this->in_buffer.append(data);
2097 /* While there is at least one new line in the buffer,
2098 * do something useful (we hope!) with it.
2100 while (in_buffer.find("\n") != std::string::npos)
2102 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2103 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2104 /* Use rfind here not find, as theres more
2105 * chance of the \r being near the end of the
2106 * string, not the start.
2108 if (ret.find("\r") != std::string::npos)
2109 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2110 /* Process this one, abort if it
2111 * didnt return true.
2117 memset(result,0,1024);
2119 /* ERROR + CAPAB is still allowed unencryped */
2120 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
2122 int nbytes = from64tobits(out, ret.c_str(), 1024);
2123 if ((nbytes > 0) && (nbytes < 1024))
2125 ctx_in->Decrypt(out, result, nbytes, 0);
2126 for (int t = 0; t < nbytes; t++)
2128 if (result[t] == '\7')
2130 /* We only need to stick a \0 on the
2131 * first \7, the rest will be lost
2141 if (!this->ProcessLine(ret))
2148 /* EAGAIN returns an empty but non-NULL string, so this
2149 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2151 return (data && !*data);
2154 int WriteLine(std::string line)
2156 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2160 char result64[10240];
2161 if (this->keylength)
2163 // pad it to the key length
2164 int n = this->keylength - (line.length() % this->keylength);
2166 line.append(n,'\7');
2168 unsigned int ll = line.length();
2169 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2170 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2173 line.append("\r\n");
2174 return this->Write(line);
2177 /* Handle ERROR command */
2178 bool Error(std::deque<std::string> ¶ms)
2180 if (params.size() < 1)
2182 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2183 /* we will return false to cause the socket to close. */
2187 /** remote MOTD. leet, huh? */
2188 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2190 if (params.size() > 0)
2192 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2194 /* It's for our server */
2195 string_list results;
2196 userrec* source = this->Instance->FindNick(prefix);
2200 std::deque<std::string> par;
2201 par.push_back(prefix);
2204 if (!Instance->Config->MOTD.size())
2206 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2207 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2211 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2212 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2214 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2216 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2217 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2220 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2221 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2227 userrec* source = this->Instance->FindNick(prefix);
2229 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2235 /** remote ADMIN. leet, huh? */
2236 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2238 if (params.size() > 0)
2240 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2242 /* It's for our server */
2243 string_list results;
2244 userrec* source = this->Instance->FindNick(prefix);
2248 std::deque<std::string> par;
2249 par.push_back(prefix);
2252 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2253 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2255 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2256 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2258 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2259 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2261 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2262 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2268 userrec* source = this->Instance->FindNick(prefix);
2270 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2276 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2278 /* Get the reply to a STATS query if it matches this servername,
2279 * and send it back as a load of PUSH queries
2281 if (params.size() > 1)
2283 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2285 /* It's for our server */
2286 string_list results;
2287 userrec* source = this->Instance->FindNick(prefix);
2290 std::deque<std::string> par;
2291 par.push_back(prefix);
2293 DoStats(this->Instance, *(params[0].c_str()), source, results);
2294 for (size_t i = 0; i < results.size(); i++)
2296 par[1] = "::" + results[i];
2297 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2304 userrec* source = this->Instance->FindNick(prefix);
2306 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2313 /** Because the core won't let users or even SERVERS set +o,
2314 * we use the OPERTYPE command to do this.
2316 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2318 if (params.size() != 1)
2320 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2323 std::string opertype = params[0];
2324 userrec* u = this->Instance->FindNick(prefix);
2327 u->modes[UM_OPERATOR] = 1;
2328 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2329 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2334 /** Because Andy insists that services-compatible servers must
2335 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2337 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2339 if (params.size() < 3)
2342 userrec* u = this->Instance->FindNick(params[0]);
2346 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2349 std::deque<std::string> par;
2350 par.push_back(params[1]);
2351 /* This is not required as one is sent in OnUserPostNick below
2353 //Utils->DoOneToMany(u->nick,"NICK",par);
2354 if (!u->ForceNickChange(params[1].c_str()))
2356 userrec::QuitUser(this->Instance, u, "Nickname collision");
2359 u->age = atoi(params[2].c_str());
2365 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2367 if (params.size() < 2)
2370 userrec* u = this->Instance->FindNick(params[0]);
2374 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2375 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2380 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2382 if (params.size() < 1)
2385 std::string servermask = params[0];
2387 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2389 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2390 this->Instance->RehashServer();
2391 Utils->ReadConfiguration(false);
2392 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2394 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2398 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2400 if (params.size() != 2)
2403 std::string nick = params[0];
2404 userrec* u = this->Instance->FindNick(prefix);
2405 userrec* who = this->Instance->FindNick(nick);
2409 /* Prepend kill source, if we don't have one */
2410 std::string sourceserv = prefix;
2413 sourceserv = u->server;
2415 if (*(params[1].c_str()) != '[')
2417 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2419 std::string reason = params[1];
2420 params[1] = ":" + params[1];
2421 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2422 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2423 userrec::QuitUser(this->Instance,who,reason);
2428 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2430 if (params.size() < 1)
2433 if (params.size() == 1)
2435 TreeServer* ServerSource = Utils->FindServer(prefix);
2438 ServerSource->SetPingFlag();
2443 std::string forwardto = params[1];
2444 if (forwardto == this->Instance->Config->ServerName)
2447 * this is a PONG for us
2448 * if the prefix is a user, check theyre local, and if they are,
2449 * dump the PONG reply back to their fd. If its a server, do nowt.
2450 * Services might want to send these s->s, but we dont need to yet.
2452 userrec* u = this->Instance->FindNick(prefix);
2456 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2461 // not for us, pass it on :)
2462 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2469 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2471 if (params.size() < 3)
2474 TreeServer* ServerSource = Utils->FindServer(prefix);
2478 if (params[0] == "*")
2480 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2482 else if (*(params[0].c_str()) == '#')
2484 chanrec* c = this->Instance->FindChan(params[0]);
2487 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2490 else if (*(params[0].c_str()) != '#')
2492 userrec* u = this->Instance->FindNick(params[0]);
2495 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2500 params[2] = ":" + params[2];
2501 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2505 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2507 if (params.size() < 1)
2510 TreeServer* ServerSource = Utils->FindServer(prefix);
2514 ServerSource->SetVersion(params[0]);
2516 params[0] = ":" + params[0];
2517 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2521 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2523 if (params.size() < 1)
2526 userrec* u = this->Instance->FindNick(prefix);
2530 u->ChangeDisplayedHost(params[0].c_str());
2531 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2536 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2538 if (params.size() < 6)
2541 bool propogate = false;
2543 switch (*(params[0].c_str()))
2546 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2547 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2550 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2551 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2554 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2555 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2558 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2559 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2562 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2565 /* Just in case... */
2566 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2571 /* Send it on its way */
2574 if (atoi(params[4].c_str()))
2576 this->Instance->SNO->WriteToSnoMask('x',"%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());
2580 this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2582 params[5] = ":" + params[5];
2583 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2585 if (!this->bursting)
2587 Instance->Log(DEBUG,"Applying lines...");
2588 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2593 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2595 if (params.size() < 1)
2598 userrec* u = this->Instance->FindNick(prefix);
2602 u->ChangeName(params[0].c_str());
2603 params[0] = ":" + params[0];
2604 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2609 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2611 if (params.size() < 1)
2614 Instance->Log(DEBUG,"In IDLE command");
2615 userrec* u = this->Instance->FindNick(prefix);
2619 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2620 // an incoming request
2621 if (params.size() == 1)
2623 userrec* x = this->Instance->FindNick(params[0]);
2624 if ((x) && (IS_LOCAL(x)))
2626 userrec* x = this->Instance->FindNick(params[0]);
2627 char signon[MAXBUF];
2630 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2631 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2632 std::deque<std::string> par;
2633 par.push_back(prefix);
2634 par.push_back(signon);
2635 par.push_back(idle);
2636 // ours, we're done, pass it BACK
2637 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2641 // not ours pass it on
2642 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2645 else if (params.size() == 3)
2647 std::string who_did_the_whois = params[0];
2648 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2649 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2651 // an incoming reply to a whois we sent out
2652 std::string nick_whoised = prefix;
2653 unsigned long signon = atoi(params[1].c_str());
2654 unsigned long idle = atoi(params[2].c_str());
2655 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2656 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2660 // not ours, pass it on
2661 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2668 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2670 if (params.size() < 2)
2673 userrec* u = this->Instance->FindNick(params[0]);
2680 u->Write(params[1]);
2684 // continue the raw onwards
2685 params[1] = ":" + params[1];
2686 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2691 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2693 // :source.server TIME remote.server sendernick
2694 // :remote.server TIME source.server sendernick TS
2695 if (params.size() == 2)
2697 // someone querying our time?
2698 if (this->Instance->Config->ServerName == params[0])
2700 userrec* u = this->Instance->FindNick(params[1]);
2704 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2705 params.push_back(curtime);
2707 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2712 // not us, pass it on
2713 userrec* u = this->Instance->FindNick(params[1]);
2715 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2718 else if (params.size() == 3)
2720 // a response to a previous TIME
2721 userrec* u = this->Instance->FindNick(params[1]);
2722 if ((u) && (IS_LOCAL(u)))
2724 time_t rawtime = atol(params[2].c_str());
2725 struct tm * timeinfo;
2726 timeinfo = localtime(&rawtime);
2728 snprintf(tms,26,"%s",asctime(timeinfo));
2730 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2735 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2741 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2743 if (params.size() < 1)
2746 if (params.size() == 1)
2748 std::string stufftobounce = params[0];
2749 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2754 std::string forwardto = params[1];
2755 if (forwardto == this->Instance->Config->ServerName)
2757 // this is a ping for us, send back PONG to the requesting server
2758 params[1] = params[0];
2759 params[0] = forwardto;
2760 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2764 // not for us, pass it on :)
2765 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2771 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2773 if (params.size() < 1)
2776 chanrec* c = Instance->FindChan(params[0]);
2780 irc::modestacker modestack(false);
2781 CUList *ulist = c->GetUsers();
2783 std::deque<std::string> stackresult;
2786 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2788 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2789 if (modesequence.length())
2791 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2792 irc::spacesepstream sep(modesequence);
2793 std::string modeletters = sep.GetToken();
2794 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2796 while (!modeletters.empty())
2798 char mletter = *(modeletters.begin());
2799 modestack.Push(mletter,sep.GetToken());
2800 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2801 modeletters.erase(modeletters.begin());
2802 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2807 while (modestack.GetStackedLine(stackresult))
2809 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2810 stackresult.push_front(ConvToStr(c->age));
2811 stackresult.push_front(c->name);
2812 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2813 stackresult.erase(stackresult.begin() + 1);
2814 Instance->Log(DEBUG,"Stacked items:");
2815 for (size_t z = 0; z < stackresult.size(); z++)
2817 y[z] = stackresult[z].c_str();
2818 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2820 userrec* n = new userrec(Instance);
2821 n->SetFd(FD_MAGIC_NUMBER);
2822 Instance->SendMode(y, stackresult.size(), n);
2829 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2831 if (params.size() < 4)
2834 std::string servername = params[0];
2835 std::string password = params[1];
2836 // hopcount is not used for a remote server, we calculate this ourselves
2837 std::string description = params[3];
2838 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2842 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2845 TreeServer* CheckDupe = Utils->FindServer(servername);
2848 this->WriteLine("ERROR :Server "+servername+" already exists!");
2849 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2852 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2853 ParentOfThis->AddChild(Node);
2854 params[3] = ":" + params[3];
2855 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2856 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2860 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2862 if (params.size() < 4)
2865 irc::string servername = params[0].c_str();
2866 std::string sname = params[0];
2867 std::string password = params[1];
2868 int hops = atoi(params[2].c_str());
2872 this->WriteLine("ERROR :Server too far away for authentication");
2873 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2876 std::string description = params[3];
2877 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2879 if ((x->Name == servername) && (x->RecvPass == password))
2881 TreeServer* CheckDupe = Utils->FindServer(sname);
2884 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2885 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2888 // Begin the sync here. this kickstarts the
2889 // other side, waiting in WAIT_AUTH_2 state,
2890 // into starting their burst, as it shows
2891 // that we're happy.
2892 this->LinkState = CONNECTED;
2893 // we should add the details of this server now
2894 // to the servers tree, as a child of the root
2896 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
2897 Utils->TreeRoot->AddChild(Node);
2898 params[3] = ":" + params[3];
2899 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
2900 this->bursting = true;
2901 this->DoBurst(Node);
2905 this->WriteLine("ERROR :Invalid credentials");
2906 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2910 bool Inbound_Server(std::deque<std::string> ¶ms)
2912 if (params.size() < 4)
2915 irc::string servername = params[0].c_str();
2916 std::string sname = params[0];
2917 std::string password = params[1];
2918 int hops = atoi(params[2].c_str());
2922 this->WriteLine("ERROR :Server too far away for authentication");
2923 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2926 std::string description = params[3];
2927 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2929 if ((x->Name == servername) && (x->RecvPass == password))
2931 TreeServer* CheckDupe = Utils->FindServer(sname);
2934 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2935 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2938 /* If the config says this link is encrypted, but the remote side
2939 * hasnt bothered to send the AES command before SERVER, then we
2940 * boot them off as we MUST have this connection encrypted.
2942 if ((x->EncryptionKey != "") && (!this->ctx_in))
2944 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2945 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2948 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2949 this->InboundServerName = sname;
2950 this->InboundDescription = description;
2951 // this is good. Send our details: Our server name and description and hopcount of 0,
2952 // along with the sendpass from this block.
2953 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2954 // move to the next state, we are now waiting for THEM.
2955 this->LinkState = WAIT_AUTH_2;
2959 this->WriteLine("ERROR :Invalid credentials");
2960 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2964 void Split(const std::string &line, std::deque<std::string> &n)
2967 irc::tokenstream tokens(line);
2969 while ((param = tokens.GetToken()) != "")
2974 bool ProcessLine(std::string &line)
2976 std::deque<std::string> params;
2977 irc::string command;
2983 line = line.substr(0, line.find_first_of("\r\n"));
2985 Instance->Log(DEBUG,"IN: %s", line.c_str());
2987 this->Split(line.c_str(),params);
2989 if ((params[0][0] == ':') && (params.size() > 1))
2991 prefix = params[0].substr(1);
2995 command = params[0].c_str();
2998 if ((!this->ctx_in) && (command == "AES"))
3000 std::string sserv = params[0];
3001 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3003 if ((x->EncryptionKey != "") && (x->Name == sserv))
3005 this->InitAES(x->EncryptionKey,sserv);
3011 else if ((this->ctx_in) && (command == "AES"))
3013 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
3016 switch (this->LinkState)
3021 // Waiting for SERVER command from remote server. Server initiating
3022 // the connection sends the first SERVER command, listening server
3023 // replies with theirs if its happy, then if the initiator is happy,
3024 // it starts to send its net sync, which starts the merge, otherwise
3025 // it sends an ERROR.
3026 if (command == "PASS")
3028 /* Silently ignored */
3030 else if (command == "SERVER")
3032 return this->Inbound_Server(params);
3034 else if (command == "ERROR")
3036 return this->Error(params);
3038 else if (command == "USER")
3040 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3043 else if (command == "CAPAB")
3045 return this->Capab(params);
3047 else if ((command == "U") || (command == "S"))
3049 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3054 std::string error("ERROR :Invalid command in negotiation phase: ");
3055 error.append(command.c_str());
3056 this->WriteLine(error);
3061 // Waiting for start of other side's netmerge to say they liked our
3063 if (command == "SERVER")
3065 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3069 else if ((command == "U") || (command == "S"))
3071 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3074 else if (command == "BURST")
3078 /* If a time stamp is provided, try and check syncronization */
3079 time_t THEM = atoi(params[0].c_str());
3080 long delta = THEM-time(NULL);
3081 if ((delta < -600) || (delta > 600))
3083 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
3084 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3087 else if ((delta < -60) || (delta > 60))
3089 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
3092 this->LinkState = CONNECTED;
3093 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3094 Utils->TreeRoot->AddChild(Node);
3096 params.push_back(InboundServerName);
3097 params.push_back("*");
3098 params.push_back("1");
3099 params.push_back(":"+InboundDescription);
3100 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3101 this->bursting = true;
3102 this->DoBurst(Node);
3104 else if (command == "ERROR")
3106 return this->Error(params);
3108 else if (command == "CAPAB")
3110 return this->Capab(params);
3115 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3119 if (command == "SERVER")
3121 // another server we connected to, which was in WAIT_AUTH_1 state,
3122 // has just sent us their credentials. If we get this far, theyre
3123 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3124 // if we're happy with this, we should send our netburst which
3125 // kickstarts the merge.
3126 return this->Outbound_Reply_Server(params);
3128 else if (command == "ERROR")
3130 return this->Error(params);
3134 // This is the 'authenticated' state, when all passwords
3135 // have been exchanged and anything past this point is taken
3140 std::string direction = prefix;
3141 userrec* t = this->Instance->FindNick(prefix);
3144 direction = t->server;
3146 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3147 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3149 if (route_back_again)
3150 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3155 * When there is activity on the socket, reset the ping counter so
3156 * that we're not wasting bandwidth pinging an active server.
3158 route_back_again->SetNextPingTime(time(NULL) + 60);
3159 route_back_again->SetPingFlag();
3162 if (command == "SVSMODE")
3164 /* Services expects us to implement
3165 * SVSMODE. In inspircd its the same as
3170 std::string target = "";
3171 /* Yes, know, this is a mess. Its reasonably fast though as we're
3172 * working with std::string here.
3174 if ((command == "NICK") && (params.size() > 1))
3176 return this->IntroduceClient(prefix,params);
3178 else if (command == "FJOIN")
3180 return this->ForceJoin(prefix,params);
3182 else if (command == "STATS")
3184 return this->Stats(prefix, params);
3186 else if (command == "MOTD")
3188 return this->Motd(prefix, params);
3190 else if (command == "ADMIN")
3192 return this->Admin(prefix, params);
3194 else if (command == "SERVER")
3196 return this->RemoteServer(prefix,params);
3198 else if (command == "ERROR")
3200 return this->Error(params);
3202 else if (command == "OPERTYPE")
3204 return this->OperType(prefix,params);
3206 else if (command == "FMODE")
3208 return this->ForceMode(prefix,params);
3210 else if (command == "KILL")
3212 return this->RemoteKill(prefix,params);
3214 else if (command == "FTOPIC")
3216 return this->ForceTopic(prefix,params);
3218 else if (command == "REHASH")
3220 return this->RemoteRehash(prefix,params);
3222 else if (command == "METADATA")
3224 return this->MetaData(prefix,params);
3226 else if (command == "REMSTATUS")
3228 return this->RemoveStatus(prefix,params);
3230 else if (command == "PING")
3233 * We just got a ping from a server that's bursting.
3234 * This can't be right, so set them to not bursting, and
3235 * apply their lines.
3239 this->bursting = false;
3240 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3244 prefix = this->GetName();
3246 return this->LocalPing(prefix,params);
3248 else if (command == "PONG")
3251 * We just got a pong from a server that's bursting.
3252 * This can't be right, so set them to not bursting, and
3253 * apply their lines.
3257 this->bursting = false;
3258 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3262 prefix = this->GetName();
3264 return this->LocalPong(prefix,params);
3266 else if (command == "VERSION")
3268 return this->ServerVersion(prefix,params);
3270 else if (command == "FHOST")
3272 return this->ChangeHost(prefix,params);
3274 else if (command == "FNAME")
3276 return this->ChangeName(prefix,params);
3278 else if (command == "ADDLINE")
3280 return this->AddLine(prefix,params);
3282 else if (command == "SVSNICK")
3286 prefix = this->GetName();
3288 return this->ForceNick(prefix,params);
3290 else if (command == "IDLE")
3292 return this->Whois(prefix,params);
3294 else if (command == "PUSH")
3296 return this->Push(prefix,params);
3298 else if (command == "TIME")
3300 return this->Time(prefix,params);
3302 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3304 std::string sourceserv = this->myhost;
3305 if (params.size() == 3)
3307 userrec* user = this->Instance->FindNick(params[1]);
3308 chanrec* chan = this->Instance->FindChan(params[0]);
3311 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3312 /* Yikes, the channels gone! */
3316 if (this->InboundServerName != "")
3318 sourceserv = this->InboundServerName;
3320 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3322 else if (command == "SVSJOIN")
3326 prefix = this->GetName();
3328 return this->ServiceJoin(prefix,params);
3330 else if (command == "SQUIT")
3332 if (params.size() == 2)
3334 this->Squit(Utils->FindServer(params[0]),params[1]);
3338 else if (command == "ENDBURST")
3340 this->bursting = false;
3341 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3342 std::string sourceserv = this->myhost;
3343 if (this->InboundServerName != "")
3345 sourceserv = this->InboundServerName;
3347 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3352 // not a special inter-server command.
3353 // Emulate the actual user doing the command,
3354 // this saves us having a huge ugly parser.
3355 userrec* who = this->Instance->FindNick(prefix);
3356 std::string sourceserv = this->myhost;
3357 if (this->InboundServerName != "")
3359 sourceserv = this->InboundServerName;
3363 if ((command == "NICK") && (params.size() > 0))
3365 /* On nick messages, check that the nick doesnt
3366 * already exist here. If it does, kill their copy,
3369 userrec* x = this->Instance->FindNick(params[0]);
3370 if ((x) && (x != who))
3372 std::deque<std::string> p;
3373 p.push_back(params[0]);
3374 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3375 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3377 p.push_back(prefix);
3378 p.push_back("Nickname collision");
3379 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3380 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3381 userrec* y = this->Instance->FindNick(prefix);
3384 userrec::QuitUser(this->Instance,y,"Nickname collision");
3386 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3390 target = who->server;
3391 const char* strparams[127];
3392 for (unsigned int q = 0; q < params.size(); q++)
3394 strparams[q] = params[q].c_str();
3396 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3399 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3406 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3412 // its not a user. Its either a server, or somethings screwed up.
3413 if (Utils->IsServer(prefix))
3415 target = this->Instance->Config->ServerName;
3419 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3423 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3432 virtual std::string GetName()
3434 std::string sourceserv = this->myhost;
3435 if (this->InboundServerName != "")
3437 sourceserv = this->InboundServerName;
3442 virtual void OnTimeout()
3444 if (this->LinkState == CONNECTING)
3446 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3447 Link* MyLink = Utils->FindLink(myhost);
3449 Utils->DoFailOver(MyLink);
3453 virtual void OnClose()
3455 // Connection closed.
3456 // If the connection is fully up (state CONNECTED)
3457 // then propogate a netsplit to all peers.
3458 std::string quitserver = this->myhost;
3459 if (this->InboundServerName != "")
3461 quitserver = this->InboundServerName;
3463 TreeServer* s = Utils->FindServer(quitserver);
3466 Squit(s,"Remote host closed the connection");
3469 if (quitserver != "")
3470 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3473 virtual int OnIncomingConnection(int newsock, char* ip)
3475 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3476 * or discovering if this port is the server port, we don't allow connections from any
3477 * IPs for which we don't have a link block.
3481 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3484 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3485 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3490 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3495 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip);
3496 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3501 /** This class is used to resolve server hostnames during /connect and autoconnect.
3502 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3503 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3504 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3505 * will have an IP address which we can then use to continue our connection.
3507 class ServernameResolver : public Resolver
3510 /** A copy of the Link tag info for what we're connecting to.
3511 * We take a copy, rather than using a pointer, just in case the
3512 * admin takes the tag away and rehashes while the domain is resolving.
3515 SpanningTreeUtilities* Utils;
3517 ServernameResolver(SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(Util)
3519 /* Nothing in here, folks */
3522 void OnLookupComplete(const std::string &result)
3524 /* Initiate the connection, now that we have an IP to use.
3525 * Passing a hostname directly to InspSocket causes it to
3526 * just bail and set its FD to -1.
3528 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3529 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3531 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str());
3532 if (newsocket->GetFd() > -1)
3538 /* Something barfed, show the opers */
3539 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3541 Utils->DoFailOver(&MyLink);
3546 void OnError(ResolverError e, const std::string &errormessage)
3549 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3550 Utils->DoFailOver(&MyLink);
3554 /** Handle resolving of server IPs for the cache
3556 class SecurityIPResolver : public Resolver
3560 SpanningTreeUtilities* Utils;
3562 SecurityIPResolver(SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(U)
3566 void OnLookupComplete(const std::string &result)
3568 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3569 Utils->ValidIPs.push_back(result);
3572 void OnError(ResolverError e, const std::string &errormessage)
3574 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3578 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3581 this->ReadConfiguration(true);
3582 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3585 SpanningTreeUtilities::~SpanningTreeUtilities()
3587 for (unsigned int i = 0; i < Bindings.size(); i++)
3589 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3590 ServerInstance->SE->DelFd(Bindings[i]);
3591 Bindings[i]->Close();
3592 DELETE(Bindings[i]);
3594 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3595 while (TreeRoot->ChildCount())
3597 TreeServer* child_server = TreeRoot->GetChild(0);
3598 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3601 TreeSocket* sock = child_server->GetSocket();
3602 ServerInstance->SE->DelFd(sock);
3610 void SpanningTreeUtilities::AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3612 for (unsigned int c = 0; c < list.size(); c++)
3614 if (list[c] == server)
3619 list.push_back(server);
3622 /** returns a list of DIRECT servernames for a specific channel */
3623 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3625 CUList *ulist = c->GetUsers();
3626 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3628 if (i->second->GetFd() < 0)
3630 TreeServer* best = this->BestRouteTo(i->second->server);
3632 AddThisServer(best,list);
3638 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3640 TreeServer* omitroute = this->BestRouteTo(omit);
3641 if ((command == "NOTICE") || (command == "PRIVMSG"))
3643 if (params.size() >= 2)
3646 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3648 params[0] = params[0].substr(1, params[0].length()-1);
3650 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3652 // special routing for private messages/notices
3653 userrec* d = ServerInstance->FindNick(params[0]);
3656 std::deque<std::string> par;
3657 par.push_back(params[0]);
3658 par.push_back(":"+params[1]);
3659 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3663 else if (*(params[0].c_str()) == '$')
3665 std::deque<std::string> par;
3666 par.push_back(params[0]);
3667 par.push_back(":"+params[1]);
3668 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3673 chanrec* c = ServerInstance->FindChan(params[0]);
3676 std::deque<TreeServer*> list;
3677 GetListOfServersForChannel(c,list);
3678 unsigned int lsize = list.size();
3679 for (unsigned int i = 0; i < lsize; i++)
3681 TreeSocket* Sock = list[i]->GetSocket();
3682 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3684 Sock->WriteLine(data);
3692 unsigned int items =this->TreeRoot->ChildCount();
3693 for (unsigned int x = 0; x < items; x++)
3695 TreeServer* Route = this->TreeRoot->GetChild(x);
3696 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3698 TreeSocket* Sock = Route->GetSocket();
3700 Sock->WriteLine(data);
3706 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3708 TreeServer* omitroute = this->BestRouteTo(omit);
3709 std::string FullLine = ":" + prefix + " " + command;
3710 unsigned int words = params.size();
3711 for (unsigned int x = 0; x < words; x++)
3713 FullLine = FullLine + " " + params[x];
3715 unsigned int items = this->TreeRoot->ChildCount();
3716 for (unsigned int x = 0; x < items; x++)
3718 TreeServer* Route = this->TreeRoot->GetChild(x);
3719 // Send the line IF:
3720 // The route has a socket (its a direct connection)
3721 // The route isnt the one to be omitted
3722 // The route isnt the path to the one to be omitted
3723 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3725 TreeSocket* Sock = Route->GetSocket();
3727 Sock->WriteLine(FullLine);
3733 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3735 std::string FullLine = ":" + prefix + " " + command;
3736 unsigned int words = params.size();
3737 for (unsigned int x = 0; x < words; x++)
3739 FullLine = FullLine + " " + params[x];
3741 unsigned int items = this->TreeRoot->ChildCount();
3742 for (unsigned int x = 0; x < items; x++)
3744 TreeServer* Route = this->TreeRoot->GetChild(x);
3745 if (Route && Route->GetSocket())
3747 TreeSocket* Sock = Route->GetSocket();
3749 Sock->WriteLine(FullLine);
3755 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3757 std::string spfx = prefix;
3758 std::string scmd = command;
3759 return this->DoOneToMany(spfx, scmd, params);
3762 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3764 std::string spfx = prefix;
3765 std::string scmd = command;
3766 return this->DoOneToAllButSender(spfx, scmd, params, omit);
3769 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
3771 TreeServer* Route = this->BestRouteTo(target);
3774 std::string FullLine = ":" + prefix + " " + command;
3775 unsigned int words = params.size();
3776 for (unsigned int x = 0; x < words; x++)
3778 FullLine = FullLine + " " + params[x];
3780 if (Route && Route->GetSocket())
3782 TreeSocket* Sock = Route->GetSocket();
3784 Sock->WriteLine(FullLine);
3794 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
3796 ConfigReader* Conf = new ConfigReader(ServerInstance);
3799 for (int j =0; j < Conf->Enumerate("bind"); j++)
3801 std::string Type = Conf->ReadValue("bind","type",j);
3802 std::string IP = Conf->ReadValue("bind","address",j);
3803 int Port = Conf->ReadInteger("bind","port",j,true);
3804 if (Type == "servers")
3806 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), Port);
3811 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(),Port,true,10);
3812 if (listener->GetState() == I_LISTENING)
3814 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), Port);
3815 Bindings.push_back(listener);
3819 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3823 ServerInstance->Log(DEBUG,"Done with this binding");
3827 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3828 HideULines = Conf->ReadFlag("options","hideulines",0);
3829 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
3832 for (int j =0; j < Conf->Enumerate("link"); j++)
3835 std::string Allow = Conf->ReadValue("link","allowmask",j);
3836 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3837 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3838 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
3839 L.Port = Conf->ReadInteger("link","port",j,true);
3840 L.SendPass = Conf->ReadValue("link","sendpass",j);
3841 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3842 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3843 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3844 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3845 L.Timeout = Conf->ReadInteger("link","timeout",j,true);
3846 L.NextConnectTime = time(NULL) + L.AutoConnect;
3847 /* Bugfix by brain, do not allow people to enter bad configurations */
3848 if (L.Name != ServerInstance->Config->ServerName)
3850 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3852 ValidIPs.push_back(L.IPAddr);
3855 ValidIPs.push_back(Allow);
3857 /* Needs resolving */
3859 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3863 SecurityIPResolver* sr = new SecurityIPResolver(this, ServerInstance, L.IPAddr, L);
3864 ServerInstance->AddResolver(sr);
3866 catch (ModuleException& e)
3868 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3872 LinkBlocks.push_back(L);
3873 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3879 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3881 else if (L.RecvPass == "")
3883 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3885 else if (L.SendPass == "")
3887 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3889 else if (L.Name == "")
3891 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3895 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3901 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
3909 class ModuleSpanningTree : public Module
3913 unsigned int max_local;
3914 unsigned int max_global;
3915 cmd_rconnect* command_rconnect;
3916 SpanningTreeUtilities* Utils;
3920 ModuleSpanningTree(InspIRCd* Me)
3921 : Module::Module(Me), max_local(0), max_global(0)
3923 Utils = new SpanningTreeUtilities(Me, this);
3925 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
3926 ServerInstance->AddCommand(command_rconnect);
3929 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3931 std::string Parent = Utils->TreeRoot->GetName();
3932 if (Current->GetParent())
3934 Parent = Current->GetParent()->GetName();
3936 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3938 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3942 ShowLinks(Current->GetChild(q),user,hops+1);
3947 ShowLinks(Current->GetChild(q),user,hops+1);
3950 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3951 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3953 user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(Utils->FlatLinks && (!*user->oper)) ? ServerInstance->Config->ServerName : Parent.c_str(),(Utils->FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
3956 int CountLocalServs()
3958 return Utils->TreeRoot->ChildCount();
3963 return Utils->serverlist.size();
3966 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3968 ShowLinks(Utils->TreeRoot,user,0);
3969 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3973 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3975 unsigned int n_users = ServerInstance->UserCount();
3977 /* Only update these when someone wants to see them, more efficient */
3978 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3979 max_local = ServerInstance->LocalUserCount();
3980 if (n_users > max_global)
3981 max_global = n_users;
3983 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3984 if (ServerInstance->OperCount())
3985 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3986 if (ServerInstance->UnregisteredUserCount())
3987 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3988 if (ServerInstance->ChannelCount())
3989 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3990 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3991 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3992 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3996 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3998 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4002 for (int t = 0; t < depth; t++)
4004 matrix[line][t] = ' ';
4007 // For Aligning, we need to work out exactly how deep this thing is, and produce
4008 // a 'Spacer' String to compensate.
4011 memset(spacer,' ',40);
4012 if ((40 - Current->GetName().length() - depth) > 1) {
4013 spacer[40 - Current->GetName().length() - depth] = '\0';
4022 if (ServerInstance->clientlist.size() == 0) {
4023 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4028 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
4030 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4031 totusers += Current->GetUserCount();
4033 strlcpy(&matrix[line][depth],text,80);
4035 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4037 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4041 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4046 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4052 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4056 /* Remote MOTD, the server is within the 1st parameter */
4057 std::deque<std::string> params;
4058 params.push_back(parameters[0]);
4060 /* Send it out remotely, generate no reply yet */
4061 TreeServer* s = Utils->FindServerMask(parameters[0]);
4064 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4068 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4075 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4079 /* Remote ADMIN, the server is within the 1st parameter */
4080 std::deque<std::string> params;
4081 params.push_back(parameters[0]);
4083 /* Send it out remotely, generate no reply yet */
4084 TreeServer* s = Utils->FindServerMask(parameters[0]);
4087 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4091 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4098 int HandleStats(const char** parameters, int pcnt, userrec* user)
4102 /* Remote STATS, the server is within the 2nd parameter */
4103 std::deque<std::string> params;
4104 params.push_back(parameters[0]);
4105 params.push_back(parameters[1]);
4106 /* Send it out remotely, generate no reply yet */
4107 TreeServer* s = Utils->FindServerMask(parameters[1]);
4110 params[1] = s->GetName();
4111 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4115 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4122 // Ok, prepare to be confused.
4123 // After much mulling over how to approach this, it struck me that
4124 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4125 // keeping track of a ton of ascii characters, and line by line
4126 // under recursion working out where to place them using multiplications
4127 // and divisons, we instead render the map onto a backplane of characters
4128 // (a character matrix), then draw the branches as a series of "L" shapes
4129 // from the nodes. This is not only friendlier on CPU it uses less stack.
4131 void HandleMap(const char** parameters, int pcnt, userrec* user)
4133 // This array represents a virtual screen which we will
4134 // "scratch" draw to, as the console device of an irc
4135 // client does not provide for a proper terminal.
4137 float totservers = 0;
4138 char matrix[128][80];
4139 for (unsigned int t = 0; t < 128; t++)
4141 matrix[t][0] = '\0';
4144 // The only recursive bit is called here.
4145 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4146 // Process each line one by one. The algorithm has a limit of
4147 // 128 servers (which is far more than a spanning tree should have
4148 // anyway, so we're ok). This limit can be raised simply by making
4149 // the character matrix deeper, 128 rows taking 10k of memory.
4150 for (int l = 1; l < line; l++)
4152 // scan across the line looking for the start of the
4153 // servername (the recursive part of the algorithm has placed
4154 // the servers at indented positions depending on what they
4156 int first_nonspace = 0;
4157 while (matrix[l][first_nonspace] == ' ')
4162 // Draw the `- (corner) section: this may be overwritten by
4163 // another L shape passing along the same vertical pane, becoming
4164 // a |- (branch) section instead.
4165 matrix[l][first_nonspace] = '-';
4166 matrix[l][first_nonspace-1] = '`';
4168 // Draw upwards until we hit the parent server, causing possibly
4169 // other corners (`-) to become branches (|-)
4170 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4172 matrix[l2][first_nonspace-1] = '|';
4176 // dump the whole lot to the user. This is the easy bit, honest.
4177 for (int t = 0; t < line; t++)
4179 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4181 float avg_users = totusers / totservers;
4182 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);
4183 user->WriteServ("007 %s :End of /MAP",user->nick);
4187 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4189 TreeServer* s = Utils->FindServerMask(parameters[0]);
4192 if (s == Utils->TreeRoot)
4194 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4197 TreeSocket* sock = s->GetSocket();
4200 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4201 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4202 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
4203 ServerInstance->SE->DelFd(sock);
4209 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
4214 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4219 int HandleTime(const char** parameters, int pcnt, userrec* user)
4221 if ((IS_LOCAL(user)) && (pcnt))
4223 TreeServer* found = Utils->FindServerMask(parameters[0]);
4226 // we dont' override for local server
4227 if (found == Utils->TreeRoot)
4230 std::deque<std::string> params;
4231 params.push_back(found->GetName());
4232 params.push_back(user->nick);
4233 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4237 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4243 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4245 if ((IS_LOCAL(user)) && (pcnt > 1))
4247 userrec* remote = ServerInstance->FindNick(parameters[1]);
4248 if ((remote) && (remote->GetFd() < 0))
4250 std::deque<std::string> params;
4251 params.push_back(parameters[1]);
4252 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4257 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4258 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4265 void DoPingChecks(time_t curtime)
4267 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4269 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4270 TreeSocket* sock = serv->GetSocket();
4273 if (curtime >= serv->NextPingTime())
4275 if (serv->AnsweredLastPing())
4277 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4278 serv->SetNextPingTime(curtime + 60);
4282 // they didnt answer, boot them
4283 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4284 sock->Squit(serv,"Ping timeout");
4285 ServerInstance->SE->DelFd(sock);
4295 void ConnectServer(Link* x)
4299 /* Do we already have an IP? If so, no need to resolve it. */
4300 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4302 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str());
4303 if (newsocket->GetFd() > -1)
4305 /* Handled automatically on success */
4309 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4311 Utils->DoFailOver(x);
4318 ServernameResolver* snr = new ServernameResolver(Utils, ServerInstance,x->IPAddr, *x);
4319 ServerInstance->AddResolver(snr);
4321 catch (ModuleException& e)
4323 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4324 Utils->DoFailOver(x);
4329 void AutoConnectServers(time_t curtime)
4331 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4333 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4335 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4336 x->NextConnectTime = curtime + x->AutoConnect;
4337 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4338 if (x->FailOver.length())
4340 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4343 /* The failover for this server is currently a member of the network.
4344 * The failover probably succeeded, where the main link did not.
4345 * Don't try the main link until the failover is gone again.
4352 // an autoconnected server is not connected. Check if its time to connect it
4353 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4354 this->ConnectServer(&(*x));
4360 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4362 // we've already checked if pcnt > 0, so this is safe
4363 TreeServer* found = Utils->FindServerMask(parameters[0]);
4366 std::string Version = found->GetVersion();
4367 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4368 if (found == Utils->TreeRoot)
4370 std::stringstream out(ServerInstance->Config->data005);
4371 std::string token = "";
4372 std::string line5 = "";
4373 int token_counter = 0;
4378 line5 = line5 + token + " ";
4381 if ((token_counter >= 13) || (out.eof() == true))
4383 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4392 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4397 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4399 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4401 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4403 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4406 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);
4407 ConnectServer(&(*x));
4412 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());
4417 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4421 virtual int OnStats(char statschar, userrec* user, string_list &results)
4423 if (statschar == 'c')
4425 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4427 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" C *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].EncryptionKey != "" ? 'e' : '-')+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
4428 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4430 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4431 ServerInstance->SNO->WriteToSnoMask('t',"Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
4437 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4439 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4443 if (command == "CONNECT")
4445 return this->HandleConnect(parameters,pcnt,user);
4447 else if (command == "STATS")
4449 return this->HandleStats(parameters,pcnt,user);
4451 else if (command == "MOTD")
4453 return this->HandleMotd(parameters,pcnt,user);
4455 else if (command == "ADMIN")
4457 return this->HandleAdmin(parameters,pcnt,user);
4459 else if (command == "SQUIT")
4461 return this->HandleSquit(parameters,pcnt,user);
4463 else if (command == "MAP")
4465 this->HandleMap(parameters,pcnt,user);
4468 else if ((command == "TIME") && (pcnt > 0))
4470 return this->HandleTime(parameters,pcnt,user);
4472 else if (command == "LUSERS")
4474 this->HandleLusers(parameters,pcnt,user);
4477 else if (command == "LINKS")
4479 this->HandleLinks(parameters,pcnt,user);
4482 else if (command == "WHOIS")
4487 return this->HandleRemoteWhois(parameters,pcnt,user);
4490 else if ((command == "VERSION") && (pcnt > 0))
4492 this->HandleVersion(parameters,pcnt,user);
4499 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4501 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4503 // this bit of code cleverly routes all module commands
4504 // to all remote severs *automatically* so that modules
4505 // can just handle commands locally, without having
4506 // to have any special provision in place for remote
4507 // commands and linking protocols.
4508 std::deque<std::string> params;
4510 for (int j = 0; j < pcnt; j++)
4512 if (strchr(parameters[j],' '))
4514 params.push_back(":" + std::string(parameters[j]));
4518 params.push_back(std::string(parameters[j]));
4521 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4522 Utils->DoOneToMany(user->nick,command,params);
4526 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4528 TreeServer* s = Utils->FindServer(servername);
4531 description = s->GetDesc();
4535 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4537 if (IS_LOCAL(source))
4539 std::deque<std::string> params;
4540 params.push_back(dest->nick);
4541 params.push_back(channel->name);
4542 Utils->DoOneToMany(source->nick,"INVITE",params);
4546 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4548 std::deque<std::string> params;
4549 params.push_back(chan->name);
4550 params.push_back(":"+topic);
4551 Utils->DoOneToMany(user->nick,"TOPIC",params);
4554 virtual void OnWallops(userrec* user, const std::string &text)
4558 std::deque<std::string> params;
4559 params.push_back(":"+text);
4560 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4564 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4566 if (target_type == TYPE_USER)
4568 userrec* d = (userrec*)dest;
4569 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4571 std::deque<std::string> params;
4573 params.push_back(d->nick);
4574 params.push_back(":"+text);
4575 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4578 else if (target_type == TYPE_CHANNEL)
4582 chanrec *c = (chanrec*)dest;
4585 std::string cname = c->name;
4587 cname = status + cname;
4588 std::deque<TreeServer*> list;
4589 Utils->GetListOfServersForChannel(c,list);
4590 unsigned int ucount = list.size();
4591 for (unsigned int i = 0; i < ucount; i++)
4593 TreeSocket* Sock = list[i]->GetSocket();
4595 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4600 else if (target_type == TYPE_SERVER)
4604 char* target = (char*)dest;
4605 std::deque<std::string> par;
4606 par.push_back(target);
4607 par.push_back(":"+text);
4608 Utils->DoOneToMany(user->nick,"NOTICE",par);
4613 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4615 if (target_type == TYPE_USER)
4617 // route private messages which are targetted at clients only to the server
4618 // which needs to receive them
4619 userrec* d = (userrec*)dest;
4620 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4622 std::deque<std::string> params;
4624 params.push_back(d->nick);
4625 params.push_back(":"+text);
4626 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4629 else if (target_type == TYPE_CHANNEL)
4633 chanrec *c = (chanrec*)dest;
4636 std::string cname = c->name;
4638 cname = status + cname;
4639 std::deque<TreeServer*> list;
4640 Utils->GetListOfServersForChannel(c,list);
4641 unsigned int ucount = list.size();
4642 for (unsigned int i = 0; i < ucount; i++)
4644 TreeSocket* Sock = list[i]->GetSocket();
4646 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4651 else if (target_type == TYPE_SERVER)
4655 char* target = (char*)dest;
4656 std::deque<std::string> par;
4657 par.push_back(target);
4658 par.push_back(":"+text);
4659 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4664 virtual void OnBackgroundTimer(time_t curtime)
4666 AutoConnectServers(curtime);
4667 DoPingChecks(curtime);
4670 virtual void OnUserJoin(userrec* user, chanrec* channel)
4672 // Only do this for local users
4675 std::deque<std::string> params;
4677 params.push_back(channel->name);
4678 // set up their permissions and the channel TS with FJOIN.
4679 // All users are FJOINed now, because a module may specify
4680 // new joining permissions for the user.
4682 params.push_back(channel->name);
4683 params.push_back(ConvToStr(channel->age));
4684 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4685 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4689 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4691 // only occurs for local clients
4692 if (user->registered != REG_ALL)
4694 std::deque<std::string> params;
4695 params.push_back(newhost);
4696 Utils->DoOneToMany(user->nick,"FHOST",params);
4699 virtual void OnChangeName(userrec* user, const std::string &gecos)
4701 // only occurs for local clients
4702 if (user->registered != REG_ALL)
4704 std::deque<std::string> params;
4705 params.push_back(gecos);
4706 Utils->DoOneToMany(user->nick,"FNAME",params);
4709 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4713 std::deque<std::string> params;
4714 params.push_back(channel->name);
4715 if (partmessage != "")
4716 params.push_back(":"+partmessage);
4717 Utils->DoOneToMany(user->nick,"PART",params);
4721 virtual void OnUserConnect(userrec* user)
4723 char agestr[MAXBUF];
4726 std::deque<std::string> params;
4727 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4728 params.push_back(agestr);
4729 params.push_back(user->nick);
4730 params.push_back(user->host);
4731 params.push_back(user->dhost);
4732 params.push_back(user->ident);
4733 params.push_back("+"+std::string(user->FormatModes()));
4734 params.push_back(user->GetIPString());
4735 params.push_back(":"+std::string(user->fullname));
4736 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4738 // User is Local, change needs to be reflected!
4739 TreeServer* SourceServer = Utils->FindServer(user->server);
4742 SourceServer->AddUserCount();
4748 virtual void OnUserQuit(userrec* user, const std::string &reason)
4750 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4752 std::deque<std::string> params;
4753 params.push_back(":"+reason);
4754 Utils->DoOneToMany(user->nick,"QUIT",params);
4756 // Regardless, We need to modify the user Counts..
4757 TreeServer* SourceServer = Utils->FindServer(user->server);
4760 SourceServer->DelUserCount();
4765 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4769 std::deque<std::string> params;
4770 params.push_back(user->nick);
4771 Utils->DoOneToMany(oldnick,"NICK",params);
4775 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4777 if ((source) && (IS_LOCAL(source)))
4779 std::deque<std::string> params;
4780 params.push_back(chan->name);
4781 params.push_back(user->nick);
4782 params.push_back(":"+reason);
4783 Utils->DoOneToMany(source->nick,"KICK",params);
4787 std::deque<std::string> params;
4788 params.push_back(chan->name);
4789 params.push_back(user->nick);
4790 params.push_back(":"+reason);
4791 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4795 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4797 std::deque<std::string> params;
4798 params.push_back(dest->nick);
4799 params.push_back(":"+reason);
4800 Utils->DoOneToMany(source->nick,"KILL",params);
4803 virtual void OnRehash(const std::string ¶meter)
4805 if (parameter != "")
4807 std::deque<std::string> params;
4808 params.push_back(parameter);
4809 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4811 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4813 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4814 ServerInstance->RehashServer();
4817 Utils->ReadConfiguration(false);
4820 // note: the protocol does not allow direct umode +o except
4821 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4823 virtual void OnOper(userrec* user, const std::string &opertype)
4827 std::deque<std::string> params;
4828 params.push_back(opertype);
4829 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
4833 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4835 if (IS_LOCAL(source))
4838 snprintf(type,8,"%cLINE",linetype);
4839 std::string stype = type;
4842 char sduration[MAXBUF];
4843 snprintf(sduration,MAXBUF,"%ld",duration);
4844 std::deque<std::string> params;
4845 params.push_back(host);
4846 params.push_back(sduration);
4847 params.push_back(":"+reason);
4848 Utils->DoOneToMany(source->nick,stype,params);
4852 std::deque<std::string> params;
4853 params.push_back(host);
4854 Utils->DoOneToMany(source->nick,stype,params);
4859 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4861 OnLine(source,hostmask,true,'G',duration,reason);
4864 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4866 OnLine(source,ipmask,true,'Z',duration,reason);
4869 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4871 OnLine(source,nickmask,true,'Q',duration,reason);
4874 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4876 OnLine(source,hostmask,true,'E',duration,reason);
4879 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4881 OnLine(source,hostmask,false,'G',0,"");
4884 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4886 OnLine(source,ipmask,false,'Z',0,"");
4889 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4891 OnLine(source,nickmask,false,'Q',0,"");
4894 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4896 OnLine(source,hostmask,false,'E',0,"");
4899 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4901 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4903 if (target_type == TYPE_USER)
4905 userrec* u = (userrec*)dest;
4906 std::deque<std::string> params;
4907 params.push_back(u->nick);
4908 params.push_back(text);
4909 Utils->DoOneToMany(user->nick,"MODE",params);
4913 chanrec* c = (chanrec*)dest;
4914 std::deque<std::string> params;
4915 params.push_back(c->name);
4916 params.push_back(text);
4917 Utils->DoOneToMany(user->nick,"MODE",params);
4922 virtual void OnSetAway(userrec* user)
4926 std::deque<std::string> params;
4927 params.push_back(":"+std::string(user->awaymsg));
4928 Utils->DoOneToMany(user->nick,"AWAY",params);
4932 virtual void OnCancelAway(userrec* user)
4936 std::deque<std::string> params;
4938 Utils->DoOneToMany(user->nick,"AWAY",params);
4942 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4944 TreeSocket* s = (TreeSocket*)opaque;
4947 if (target_type == TYPE_USER)
4949 userrec* u = (userrec*)target;
4950 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4954 chanrec* c = (chanrec*)target;
4955 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4960 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4962 TreeSocket* s = (TreeSocket*)opaque;
4965 if (target_type == TYPE_USER)
4967 userrec* u = (userrec*)target;
4968 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4970 else if (target_type == TYPE_OTHER)
4972 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4974 else if (target_type == TYPE_CHANNEL)
4976 chanrec* c = (chanrec*)target;
4977 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4982 virtual void OnEvent(Event* event)
4984 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4986 if (event->GetEventID() == "send_metadata")
4988 if (params->size() < 3)
4990 (*params)[2] = ":" + (*params)[2];
4991 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4993 else if (event->GetEventID() == "send_topic")
4995 if (params->size() < 2)
4997 (*params)[1] = ":" + (*params)[1];
4998 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
4999 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
5000 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5002 else if (event->GetEventID() == "send_mode")
5004 if (params->size() < 2)
5006 // Insert the TS value of the object, either userrec or chanrec
5008 userrec* a = ServerInstance->FindNick((*params)[0]);
5015 chanrec* a = ServerInstance->FindChan((*params)[0]);
5021 params->insert(params->begin() + 1,ConvToStr(ourTS));
5022 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5026 virtual ~ModuleSpanningTree()
5028 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5029 /* This will also free the listeners */
5033 virtual Version GetVersion()
5035 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5038 void Implements(char* List)
5040 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5041 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5042 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5043 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5044 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5045 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5046 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5049 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5050 * so that any activity it sees is FINAL, e.g. we arent going to send out
5051 * a NICK message before m_cloaking has finished putting the +x on the user,
5053 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5054 * the module call queue.
5056 Priority Prioritize()
5058 return PRIORITY_LAST;
5062 void SpanningTreeUtilities::DoFailOver(Link* x)
5064 if (x->FailOver.length())
5066 if (x->FailOver == x->Name)
5068 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Some muppet configured the failover for server \002%s\002 to point at itself. Not following it!", x->Name.c_str());
5071 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5074 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5075 Creator->ConnectServer(TryThisOne);
5079 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5084 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5086 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5088 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5097 class ModuleSpanningTreeFactory : public ModuleFactory
5100 ModuleSpanningTreeFactory()
5104 ~ModuleSpanningTreeFactory()
5108 virtual Module * CreateModule(InspIRCd* Me)
5110 return new ModuleSpanningTree(Me);
5116 extern "C" void * init_module( void )
5118 return new ModuleSpanningTreeFactory;