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 Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
1062 rmode.Send(Instance);
1064 std::deque<std::string> params;
1065 params.push_back(Current->GetName());
1066 params.push_back(":"+reason);
1067 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1068 if (Current->GetParent() == Utils->TreeRoot)
1070 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1074 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1076 num_lost_servers = 0;
1078 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1079 SquitServer(from, Current);
1081 Current->GetParent()->DelChild(Current);
1083 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1087 Instance->Log(DEFAULT,"Squit from unknown server");
1091 /** FMODE command - server mode with timestamp checks */
1092 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1094 /* Chances are this is a 1.0 FMODE without TS */
1095 if (params.size() < 3)
1097 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
1102 std::string sourceserv;
1104 /* Are we dealing with an FMODE from a user, or from a server? */
1105 userrec* who = this->Instance->FindNick(source);
1108 /* FMODE from a user, set sourceserv to the users server name */
1109 sourceserv = who->server;
1113 /* FMODE from a server, create a fake user to receive mode feedback */
1114 who = new userrec(this->Instance);
1115 who->SetFd(FD_MAGIC_NUMBER);
1116 smode = true; /* Setting this flag tells us we should free the userrec later */
1117 sourceserv = source; /* Set sourceserv to the actual source string */
1119 const char* modelist[64];
1122 memset(&modelist,0,sizeof(modelist));
1123 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1127 /* The timestamp is in this position.
1128 * We don't want to pass that up to the
1129 * server->client protocol!
1131 TS = atoi(params[q].c_str());
1135 /* Everything else is fine to append to the modelist */
1136 modelist[n++] = params[q].c_str();
1140 /* Extract the TS value of the object, either userrec or chanrec */
1141 userrec* dst = this->Instance->FindNick(params[0]);
1142 chanrec* chan = NULL;
1150 chan = this->Instance->FindChan(params[0]);
1156 /* Oops, channel doesnt exist! */
1160 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1165 Instance->Log(DEBUG,"Entering TS equality check");
1166 ModeHandler* mh = NULL;
1167 unsigned long paramptr = 3;
1168 std::string to_bounce = "";
1169 std::string to_keep = "";
1170 std::vector<std::string> params_to_keep;
1171 std::string params_to_bounce = "";
1173 char cur_change = 1;
1174 char old_change = 0;
1175 char old_bounce_change = 0;
1176 /* Merge modes, basically do special stuff to mode with params */
1177 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1190 /* We only care about whats being set,
1191 * not whats being unset
1193 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1195 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1197 /* We only want to do special things to
1198 * modes with parameters, we are going to rewrite
1202 adding ? cur_change = '+' : cur_change = '-';
1204 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1206 /* The mode is set here, check which we should keep */
1209 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1211 if (which_to_keep == true)
1213 /* Keep ours, bounce theirs:
1214 * Send back ours to them and
1215 * drop their mode changs
1217 adding ? cur_change = '+' : cur_change = '-';
1218 if (cur_change != old_bounce_change)
1219 to_bounce += cur_change;
1221 old_bounce_change = cur_change;
1223 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1224 params_to_bounce.append(" ").append(ret.second);
1228 /* Keep theirs: Accept their mode change,
1231 adding ? cur_change = '+' : cur_change = '-';
1232 if (cur_change != old_change)
1233 to_keep += cur_change;
1235 old_change = cur_change;
1237 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1238 params_to_keep.push_back(params[paramptr]);
1243 /* Mode isnt set here, we want it */
1244 adding ? cur_change = '+' : cur_change = '-';
1245 if (cur_change != old_change)
1246 to_keep += cur_change;
1248 old_change = cur_change;
1250 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1251 params_to_keep.push_back(params[paramptr]);
1258 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1262 adding ? cur_change = '+' : cur_change = '-';
1264 /* Just keep this, safe to merge with no checks
1265 * it has no parameters
1268 if (cur_change != old_change)
1269 to_keep += cur_change;
1271 old_change = cur_change;
1273 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1275 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1276 params_to_keep.push_back(params[paramptr++]);
1283 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1287 /* Taking a mode away */
1288 adding ? cur_change = '+' : cur_change = '-';
1290 if (cur_change != old_change)
1291 to_keep += cur_change;
1293 old_change = cur_change;
1295 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1296 params_to_keep.push_back(params[paramptr++]);
1303 if (to_bounce.length())
1305 std::deque<std::string> newparams;
1306 newparams.push_back(params[0]);
1307 newparams.push_back(ConvToStr(ourTS));
1308 newparams.push_back(to_bounce+params_to_bounce);
1309 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1310 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1313 if (to_keep.length())
1317 modelist[0] = params[0].c_str();
1318 modelist[1] = to_keep.c_str();
1320 if (params_to_keep.size() > 0)
1322 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1324 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1325 modelist[n++] = params_to_keep[q].c_str();
1331 Instance->Log(DEBUG,"Send mode");
1332 this->Instance->SendMode(modelist, n, who);
1336 Instance->Log(DEBUG,"Send mode client");
1337 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1340 /* HOT POTATO! PASS IT ON! */
1341 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1345 /* U-lined servers always win regardless of their TS */
1346 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1348 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1349 * SHOULD accept it, if its clock is right.
1351 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1352 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1353 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1355 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1356 * writing the code. It took me a while to come up with this solution.
1358 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1361 std::deque<std::string> newparams; /* New parameter list we send back */
1362 newparams.push_back(params[0]); /* Target, user or channel */
1363 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1364 newparams.push_back(""); /* This contains the mode string. For now
1365 * it's empty, we fill it below.
1368 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1369 * set to avoid a desync here.
1371 std::string modebounce = "";
1374 ModeHandler* mh = NULL;
1375 char cur_change = 1;
1376 char old_change = 0;
1377 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1379 /* Iterate over all mode chars in the sent set */
1382 /* Adding or subtracting modes? */
1390 /* Find the mode handler for this mode */
1391 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1393 /* Got a mode handler?
1394 * This also prevents us bouncing modes we have no handler for.
1401 /* Does the mode require a parameter right now?
1402 * If it does, fetch it if we can
1404 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1407 /* Call the ModeSet method to determine if its set with the
1408 * given parameter here or not.
1410 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1412 /* XXX: Really. Dont ask.
1413 * Determine from if its set combined with what the current
1414 * 'state' is (adding or not) as to wether we should 'invert'
1415 * or 'reinforce' the mode change
1417 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1419 /* Quickly determine if we have 'flipped' from + to -,
1420 * or - to +, to prevent unneccessary +/- chars in the
1421 * output string that waste bandwidth
1423 if (cur_change != old_change)
1424 modebounce += cur_change;
1425 old_change = cur_change;
1427 /* Add the mode character to the output string */
1428 modebounce += mh->GetModeChar();
1430 /* We got a parameter back from ModeHandler::ModeSet,
1431 * are we supposed to be sending one out right now?
1433 if (ret.second.length())
1435 if (mh->GetNumParams(cur_change == '+') > 0)
1436 /* Yes we're supposed to be sending out
1437 * the parameter. Make sure it goes
1439 newparams.push_back(ret.second);
1447 /* Update the parameters for FMODE with the new 'bounced' string */
1448 newparams[2] = modebounce;
1449 /* Only send it back the way it came, no need to send it anywhere else */
1450 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1451 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1455 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1456 /* The server was ulined, but something iffy is up with the TS.
1457 * Sound the alarm bells!
1459 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1461 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());
1463 /* Allow the mode, route it to either server or user command handling */
1465 this->Instance->SendMode(modelist,n,who);
1467 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1469 /* HOT POTATO! PASS IT ON! */
1470 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1472 /* Are we supposed to free the userrec? */
1479 /** FTOPIC command */
1480 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1482 if (params.size() != 4)
1484 time_t ts = atoi(params[1].c_str());
1485 std::string nsource = source;
1487 chanrec* c = this->Instance->FindChan(params[0]);
1490 if ((ts >= c->topicset) || (!*c->topic))
1492 std::string oldtopic = c->topic;
1493 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1494 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1496 /* if the topic text is the same as the current topic,
1497 * dont bother to send the TOPIC command out, just silently
1498 * update the set time and set nick.
1500 if (oldtopic != params[3])
1502 userrec* user = this->Instance->FindNick(source);
1505 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1509 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1510 nsource = user->server;
1512 /* all done, send it on its way */
1513 params[3] = ":" + params[3];
1514 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1523 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1524 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1526 /* 1.1 FJOIN works as follows:
1528 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1529 * timestamp 'wins'. From this point on we will refer to this side as the
1530 * winner. The side with the higher timestamp loses, from this point on we
1531 * will call this side the loser or losing side. This should be familiar to
1532 * anyone who's dealt with dreamforge or TS6 before.
1534 * When two sides of a split heal and this occurs, the following things
1537 * If the timestamps are exactly equal, both sides merge their privilages
1538 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1539 * re-created during a split, this is safe to do.
1542 * If the timestamps are NOT equal, the losing side removes all privilage
1543 * modes from all of its users that currently exist in the channel, before
1544 * introducing new users into the channel which are listed in the FJOIN
1545 * command's parameters. This means, all modes +ohv, and privilages added
1546 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1547 * of the channel to match that of the winning side, and the modes of the
1548 * users of the winning side are merged in with the losing side. The loser
1549 * then sends out a set of FMODE commands which 'confirm' that it just
1550 * removed all privilage modes from its existing users, which allows for
1551 * services packages to still work correctly without needing to know the
1552 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1553 * a problem, and services packages must contain code which explicitly
1554 * behaves as TS6 does, removing ops from the losing side of a split where
1555 * neccessary within its internal records, as this state information is
1556 * not explicitly echoed out in that protocol.
1558 * The winning side on the other hand will ignore all user modes from the
1559 * losing side, so only its own modes get applied. Life is simple for those
1560 * who succeed at internets. :-)
1562 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1563 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1564 * you ask? Well, quite simply because we don't need to. They'll be sent
1565 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1566 * the losing side sends any modes for the channel which shouldnt win,
1567 * they wont as their timestamp will be too high :-)
1570 if (params.size() < 3)
1573 char first[MAXBUF]; /* The first parameter of the mode command */
1574 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1575 char* mode_users[127]; /* The values used by the mode command */
1576 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1577 mode_users[0] = first; /* Set this up to be our on-stack value */
1578 mode_users[1] = modestring; /* Same here as above */
1579 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1580 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1582 userrec* who = NULL; /* User we are currently checking */
1583 std::string channel = params[0]; /* Channel name, as a string */
1584 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1586 /* Try and find the channel */
1587 chanrec* chan = this->Instance->FindChan(channel);
1589 /* Initialize channel name in the mode parameters */
1590 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1592 /* default TS is a high value, which if we dont have this
1593 * channel will let the other side apply their modes.
1595 time_t ourTS = time(NULL)+600;
1597 /* Does this channel exist? if it does, get its REAL timestamp */
1601 /* In 1.1, if they have the newer channel, we immediately clear
1602 * all status modes from our users. We then accept their modes.
1603 * If WE have the newer channel its the other side's job to do this.
1604 * Note that this causes the losing server to send out confirming
1609 std::deque<std::string> param_list;
1614 /* Lower the TS here */
1615 if (Utils->AnnounceTSChange && chan)
1616 chan->WriteChannelWithServ(Instance->Config->ServerName,
1617 "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
1620 param_list.push_back(channel);
1621 /* Zap all the privilage modes on our side */
1622 this->RemoveStatus(Instance->Config->ServerName, param_list);
1625 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1626 irc::tokenstream users(params[2]);
1627 std::string item = "*";
1629 /* do this first, so our mode reversals are correctly received by other servers
1630 * if there is a TS collision.
1632 params[2] = ":" + params[2];
1633 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1635 /* Now, process every 'prefixes,nick' pair */
1638 /* Find next user */
1639 item = users.GetToken();
1641 const char* usr = item.c_str();
1643 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1644 * (is this even possible?) */
1647 const char* permissions = usr;
1649 char* nm = new char[MAXBUF];
1652 /* Iterate through all the prefix values, convert them from prefixes
1653 * to mode letters, and append them to the mode sequence
1655 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1657 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1660 /* This is a valid prefix */
1662 *tnm++ = mh->GetModeChar();
1666 /* Not a valid prefix...
1667 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1669 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1670 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1677 /* Null terminate modes */
1679 /* Advance past the comma, to the nick */
1682 /* Check the user actually exists */
1683 who = this->Instance->FindNick(usr);
1686 /* Did they get any modes? How many times? */
1687 strlcat(modestring, nm, MAXBUF);
1688 for (int k = 0; k < ntimes; k++)
1689 mode_users[modectr++] = strdup(usr);
1691 /* Free temporary buffer used for mode sequence */
1694 /* Check that the user's 'direction' is correct
1695 * based on the server sending the FJOIN. We must
1696 * check each nickname in turn, because the origin of
1697 * the FJOIN may be different to the origin of the nicks
1698 * in the command itself.
1700 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1701 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1703 /* Oh dear oh dear. */
1704 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1707 /* Finally, we can actually place the user into the channel.
1708 * We're sure its right. Final answer, phone a friend.
1710 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1712 /* Have we already queued up MAXMODES modes with parameters
1713 * (+qaohv) ready to be sent to the server?
1715 if (modectr >= (MAXMODES-1))
1717 /* Only actually give the users any status if we lost
1718 * the FJOIN or drew (equal timestamps).
1719 * It isn't actually possible for ourTS to be > TS here,
1720 * only possible to actually have ourTS == TS, or
1721 * ourTS < TS, because if we lost, we already lowered
1722 * our TS above before we entered this loop. We only
1723 * check >= as a safety measure, in case someone stuffed
1724 * up. If someone DID stuff up, it was most likely me.
1725 * Note: I do not like baseball bats in the face...
1729 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1730 this->Instance->SendMode((const char**)mode_users,modectr,who);
1732 /* Something stuffed up, and for some reason, the timestamp is
1733 * NOT lowered right now and should be. Lower it. Usually this
1734 * code won't be executed, doubtless someone will remove it some
1739 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1745 /* Reset all this back to defaults, and
1746 * free any ram we have left allocated.
1748 strcpy(mode_users[1],"+");
1749 for (unsigned int f = 2; f < modectr; f++)
1750 free(mode_users[f]);
1756 /* Remember to free this */
1758 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1759 * We don't try to process the nickname here (that WOULD cause a segfault because
1760 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1761 * in case somehow we're desynched, so that other users which might be able to see
1762 * the nickname get their fair chance to process it.
1764 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1770 /* there werent enough modes built up to flush it during FJOIN,
1771 * or, there are a number left over. flush them out.
1773 if ((modectr > 2) && (who) && (chan))
1777 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1778 this->Instance->SendMode((const char**)mode_users,modectr,who);
1779 /* Yet again, we can't actually get a true value here, if everything else
1780 * is working as it should.
1784 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1790 /* Free anything we have left to free */
1791 for (unsigned int f = 2; f < modectr; f++)
1792 free(mode_users[f]);
1795 /* All done. That wasnt so bad was it, you can wipe
1796 * the sweat from your forehead now. :-)
1802 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1804 if (params.size() < 8)
1806 if (params.size() > 8)
1808 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1811 // NICK age nick host dhost ident +modes ip :gecos
1813 time_t age = atoi(params[0].c_str());
1815 /* This used to have a pretty craq'y loop doing the same thing,
1816 * now we just let the STL do the hard work (more efficiently)
1818 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1819 if (pos_after_plus != std::string::npos)
1820 params[5] = params[5].substr(pos_after_plus);
1822 const char* tempnick = params[1].c_str();
1823 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1825 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1827 if (iter != this->Instance->clientlist.end())
1830 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);
1831 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1832 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1836 userrec* _new = new userrec(this->Instance);
1837 this->Instance->clientlist[tempnick] = _new;
1838 _new->SetFd(FD_MAGIC_NUMBER);
1839 strlcpy(_new->nick, tempnick,NICKMAX-1);
1840 strlcpy(_new->host, params[2].c_str(),63);
1841 strlcpy(_new->dhost, params[3].c_str(),63);
1842 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1843 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1844 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1845 _new->registered = REG_ALL;
1848 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1849 _new->modes[(*v)-65] = 1;
1851 #ifdef SUPPORT_IP6LINKS
1852 if (params[6].find_first_of(":") != std::string::npos)
1853 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1856 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1858 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1860 params[7] = ":" + params[7];
1861 Utils->DoOneToAllButSender(source,"NICK",params,source);
1863 // Increment the Source Servers User Count..
1864 TreeServer* SourceServer = Utils->FindServer(source);
1867 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1868 SourceServer->AddUserCount();
1871 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1876 /** Send one or more FJOINs for a channel of users.
1877 * If the length of a single line is more than 480-NICKMAX
1878 * in length, it is split over multiple lines.
1880 void SendFJoins(TreeServer* Current, chanrec* c)
1884 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1886 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1888 size_t dlen, curlen;
1889 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1891 char* ptr = list + dlen;
1893 CUList *ulist = c->GetUsers();
1894 std::string modes = "";
1895 std::string params = "";
1897 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1899 // The first parameter gets a : before it
1900 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1907 if (curlen > (480-NICKMAX))
1909 buffer.append(list).append("\r\n");
1911 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1919 buffer.append(list).append("\r\n");
1921 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1924 params.append(" ").append(b->data);
1926 if (params.length() >= MAXMODES)
1928 /* Wrap at MAXMODES */
1929 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");
1935 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
1937 /* Only send these if there are any */
1939 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);
1941 this->WriteLine(buffer);
1944 /** Send G, Q, Z and E lines */
1945 void SendXLines(TreeServer* Current)
1949 std::string n = this->Instance->Config->ServerName;
1950 const char* sn = n.c_str();
1952 /* Yes, these arent too nice looking, but they get the job done */
1953 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1955 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1956 buffer.append(data);
1958 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1960 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1961 buffer.append(data);
1963 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1965 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\r\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1966 buffer.append(data);
1968 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1970 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\r\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1971 buffer.append(data);
1973 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1975 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1976 buffer.append(data);
1978 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1980 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1981 buffer.append(data);
1983 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1985 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\r\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1986 buffer.append(data);
1988 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1990 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\r\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1991 buffer.append(data);
1994 if (!buffer.empty())
1995 this->WriteLine(buffer);
1998 /** Send channel modes and topics */
1999 void SendChannelModes(TreeServer* Current)
2002 std::deque<std::string> list;
2004 std::string n = this->Instance->Config->ServerName;
2005 const char* sn = n.c_str();
2006 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
2008 SendFJoins(Current, c->second);
2009 if (*c->second->topic)
2011 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2012 this->WriteLine(data);
2014 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2016 c->second->GetExtList(list);
2017 for (unsigned int j = 0; j < list.size(); j++)
2019 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2024 /** send all users and their oper state/modes */
2025 void SendUsers(TreeServer* Current)
2028 std::deque<std::string> list;
2029 std::string dataline;
2031 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2033 if (u->second->registered == REG_ALL)
2035 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);
2036 this->WriteLine(data);
2037 if (*u->second->oper)
2039 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2040 this->WriteLine(data);
2042 if (*u->second->awaymsg)
2044 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2045 this->WriteLine(data);
2047 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2049 u->second->GetExtList(list);
2050 for (unsigned int j = 0; j < list.size(); j++)
2052 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2058 /** This function is called when we want to send a netburst to a local
2059 * server. There is a set order we must do this, because for example
2060 * users require their servers to exist, and channels require their
2061 * users to exist. You get the idea.
2063 void DoBurst(TreeServer* s)
2065 std::string burst = "BURST "+ConvToStr(time(NULL));
2066 std::string endburst = "ENDBURST";
2067 // Because by the end of the netburst, it could be gone!
2068 std::string name = s->GetName();
2069 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2070 this->WriteLine(burst);
2071 /* send our version string */
2072 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2073 /* Send server tree */
2074 this->SendServers(Utils->TreeRoot,s,1);
2075 /* Send users and their oper status */
2077 /* Send everything else (channel modes, xlines etc) */
2078 this->SendChannelModes(s);
2079 this->SendXLines(s);
2080 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2081 this->WriteLine(endburst);
2082 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2085 /** This function is called when we receive data from a remote
2086 * server. We buffer the data in a std::string (it doesnt stay
2087 * there for long), reading using InspSocket::Read() which can
2088 * read up to 16 kilobytes in one operation.
2090 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2091 * THE SOCKET OBJECT FOR US.
2093 virtual bool OnDataReady()
2095 char* data = this->Read();
2096 /* Check that the data read is a valid pointer and it has some content */
2099 this->in_buffer.append(data);
2100 /* While there is at least one new line in the buffer,
2101 * do something useful (we hope!) with it.
2103 while (in_buffer.find("\n") != std::string::npos)
2105 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2106 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2107 /* Use rfind here not find, as theres more
2108 * chance of the \r being near the end of the
2109 * string, not the start.
2111 if (ret.find("\r") != std::string::npos)
2112 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2113 /* Process this one, abort if it
2114 * didnt return true.
2120 memset(result,0,1024);
2122 /* ERROR + CAPAB is still allowed unencryped */
2123 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
2125 int nbytes = from64tobits(out, ret.c_str(), 1024);
2126 if ((nbytes > 0) && (nbytes < 1024))
2128 ctx_in->Decrypt(out, result, nbytes, 0);
2129 for (int t = 0; t < nbytes; t++)
2131 if (result[t] == '\7')
2133 /* We only need to stick a \0 on the
2134 * first \7, the rest will be lost
2144 if (!this->ProcessLine(ret))
2151 /* EAGAIN returns an empty but non-NULL string, so this
2152 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2154 return (data && !*data);
2157 int WriteLine(std::string line)
2159 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2163 char result64[10240];
2164 if (this->keylength)
2166 // pad it to the key length
2167 int n = this->keylength - (line.length() % this->keylength);
2169 line.append(n,'\7');
2171 unsigned int ll = line.length();
2172 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2173 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2176 line.append("\r\n");
2177 return this->Write(line);
2180 /* Handle ERROR command */
2181 bool Error(std::deque<std::string> ¶ms)
2183 if (params.size() < 1)
2185 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2186 /* we will return false to cause the socket to close. */
2190 /** remote MOTD. leet, huh? */
2191 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2193 if (params.size() > 0)
2195 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2197 /* It's for our server */
2198 string_list results;
2199 userrec* source = this->Instance->FindNick(prefix);
2203 std::deque<std::string> par;
2204 par.push_back(prefix);
2207 if (!Instance->Config->MOTD.size())
2209 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2210 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2214 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2215 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2217 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2219 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2220 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2223 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2224 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2230 userrec* source = this->Instance->FindNick(prefix);
2232 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2238 /** remote ADMIN. leet, huh? */
2239 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2241 if (params.size() > 0)
2243 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2245 /* It's for our server */
2246 string_list results;
2247 userrec* source = this->Instance->FindNick(prefix);
2251 std::deque<std::string> par;
2252 par.push_back(prefix);
2255 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2256 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2258 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2259 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2261 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2262 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2264 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2265 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2271 userrec* source = this->Instance->FindNick(prefix);
2273 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2279 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2281 /* Get the reply to a STATS query if it matches this servername,
2282 * and send it back as a load of PUSH queries
2284 if (params.size() > 1)
2286 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2288 /* It's for our server */
2289 string_list results;
2290 userrec* source = this->Instance->FindNick(prefix);
2293 std::deque<std::string> par;
2294 par.push_back(prefix);
2296 DoStats(this->Instance, *(params[0].c_str()), source, results);
2297 for (size_t i = 0; i < results.size(); i++)
2299 par[1] = "::" + results[i];
2300 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2307 userrec* source = this->Instance->FindNick(prefix);
2309 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2316 /** Because the core won't let users or even SERVERS set +o,
2317 * we use the OPERTYPE command to do this.
2319 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2321 if (params.size() != 1)
2323 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2326 std::string opertype = params[0];
2327 userrec* u = this->Instance->FindNick(prefix);
2330 u->modes[UM_OPERATOR] = 1;
2331 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2332 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2337 /** Because Andy insists that services-compatible servers must
2338 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2340 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2342 if (params.size() < 3)
2345 userrec* u = this->Instance->FindNick(params[0]);
2349 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2352 std::deque<std::string> par;
2353 par.push_back(params[1]);
2354 /* This is not required as one is sent in OnUserPostNick below
2356 //Utils->DoOneToMany(u->nick,"NICK",par);
2357 if (!u->ForceNickChange(params[1].c_str()))
2359 userrec::QuitUser(this->Instance, u, "Nickname collision");
2362 u->age = atoi(params[2].c_str());
2368 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2370 if (params.size() < 2)
2373 userrec* u = this->Instance->FindNick(params[0]);
2377 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2378 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2383 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2385 if (params.size() < 1)
2388 std::string servermask = params[0];
2390 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2392 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2393 this->Instance->RehashServer();
2394 Utils->ReadConfiguration(false);
2395 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2397 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2401 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2403 if (params.size() != 2)
2406 std::string nick = params[0];
2407 userrec* u = this->Instance->FindNick(prefix);
2408 userrec* who = this->Instance->FindNick(nick);
2412 /* Prepend kill source, if we don't have one */
2413 std::string sourceserv = prefix;
2416 sourceserv = u->server;
2418 if (*(params[1].c_str()) != '[')
2420 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2422 std::string reason = params[1];
2423 params[1] = ":" + params[1];
2424 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2425 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2426 userrec::QuitUser(this->Instance,who,reason);
2431 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2433 if (params.size() < 1)
2436 if (params.size() == 1)
2438 TreeServer* ServerSource = Utils->FindServer(prefix);
2441 ServerSource->SetPingFlag();
2446 std::string forwardto = params[1];
2447 if (forwardto == this->Instance->Config->ServerName)
2450 * this is a PONG for us
2451 * if the prefix is a user, check theyre local, and if they are,
2452 * dump the PONG reply back to their fd. If its a server, do nowt.
2453 * Services might want to send these s->s, but we dont need to yet.
2455 userrec* u = this->Instance->FindNick(prefix);
2459 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2464 // not for us, pass it on :)
2465 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2472 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2474 if (params.size() < 3)
2477 TreeServer* ServerSource = Utils->FindServer(prefix);
2481 if (params[0] == "*")
2483 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2485 else if (*(params[0].c_str()) == '#')
2487 chanrec* c = this->Instance->FindChan(params[0]);
2490 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2493 else if (*(params[0].c_str()) != '#')
2495 userrec* u = this->Instance->FindNick(params[0]);
2498 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2503 params[2] = ":" + params[2];
2504 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2508 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2510 if (params.size() < 1)
2513 TreeServer* ServerSource = Utils->FindServer(prefix);
2517 ServerSource->SetVersion(params[0]);
2519 params[0] = ":" + params[0];
2520 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2524 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2526 if (params.size() < 1)
2529 userrec* u = this->Instance->FindNick(prefix);
2533 u->ChangeDisplayedHost(params[0].c_str());
2534 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2539 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2541 if (params.size() < 6)
2544 bool propogate = false;
2546 switch (*(params[0].c_str()))
2549 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2550 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2553 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2554 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2557 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2558 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2561 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2562 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2565 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2568 /* Just in case... */
2569 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2574 /* Send it on its way */
2577 if (atoi(params[4].c_str()))
2579 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());
2583 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());
2585 params[5] = ":" + params[5];
2586 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2588 if (!this->bursting)
2590 Instance->Log(DEBUG,"Applying lines...");
2591 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2596 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2598 if (params.size() < 1)
2601 userrec* u = this->Instance->FindNick(prefix);
2605 u->ChangeName(params[0].c_str());
2606 params[0] = ":" + params[0];
2607 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2612 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2614 if (params.size() < 1)
2617 Instance->Log(DEBUG,"In IDLE command");
2618 userrec* u = this->Instance->FindNick(prefix);
2622 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2623 // an incoming request
2624 if (params.size() == 1)
2626 userrec* x = this->Instance->FindNick(params[0]);
2627 if ((x) && (IS_LOCAL(x)))
2629 userrec* x = this->Instance->FindNick(params[0]);
2630 char signon[MAXBUF];
2633 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2634 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2635 std::deque<std::string> par;
2636 par.push_back(prefix);
2637 par.push_back(signon);
2638 par.push_back(idle);
2639 // ours, we're done, pass it BACK
2640 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2644 // not ours pass it on
2645 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2648 else if (params.size() == 3)
2650 std::string who_did_the_whois = params[0];
2651 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2652 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2654 // an incoming reply to a whois we sent out
2655 std::string nick_whoised = prefix;
2656 unsigned long signon = atoi(params[1].c_str());
2657 unsigned long idle = atoi(params[2].c_str());
2658 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2659 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2663 // not ours, pass it on
2664 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2671 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2673 if (params.size() < 2)
2676 userrec* u = this->Instance->FindNick(params[0]);
2683 u->Write(params[1]);
2687 // continue the raw onwards
2688 params[1] = ":" + params[1];
2689 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2694 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2696 // :source.server TIME remote.server sendernick
2697 // :remote.server TIME source.server sendernick TS
2698 if (params.size() == 2)
2700 // someone querying our time?
2701 if (this->Instance->Config->ServerName == params[0])
2703 userrec* u = this->Instance->FindNick(params[1]);
2707 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2708 params.push_back(curtime);
2710 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2715 // not us, pass it on
2716 userrec* u = this->Instance->FindNick(params[1]);
2718 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2721 else if (params.size() == 3)
2723 // a response to a previous TIME
2724 userrec* u = this->Instance->FindNick(params[1]);
2725 if ((u) && (IS_LOCAL(u)))
2727 time_t rawtime = atol(params[2].c_str());
2728 struct tm * timeinfo;
2729 timeinfo = localtime(&rawtime);
2731 snprintf(tms,26,"%s",asctime(timeinfo));
2733 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2738 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2744 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2746 if (params.size() < 1)
2749 if (params.size() == 1)
2751 std::string stufftobounce = params[0];
2752 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2757 std::string forwardto = params[1];
2758 if (forwardto == this->Instance->Config->ServerName)
2760 // this is a ping for us, send back PONG to the requesting server
2761 params[1] = params[0];
2762 params[0] = forwardto;
2763 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2767 // not for us, pass it on :)
2768 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2774 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2776 if (params.size() < 1)
2779 chanrec* c = Instance->FindChan(params[0]);
2783 irc::modestacker modestack(false);
2784 CUList *ulist = c->GetUsers();
2786 std::deque<std::string> stackresult;
2789 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2791 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2792 if (modesequence.length())
2794 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2795 irc::spacesepstream sep(modesequence);
2796 std::string modeletters = sep.GetToken();
2797 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2799 while (!modeletters.empty())
2801 char mletter = *(modeletters.begin());
2802 modestack.Push(mletter,sep.GetToken());
2803 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2804 modeletters.erase(modeletters.begin());
2805 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2810 while (modestack.GetStackedLine(stackresult))
2812 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2813 stackresult.push_front(ConvToStr(c->age));
2814 stackresult.push_front(c->name);
2815 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2816 stackresult.erase(stackresult.begin() + 1);
2817 Instance->Log(DEBUG,"Stacked items:");
2818 for (size_t z = 0; z < stackresult.size(); z++)
2820 y[z] = stackresult[z].c_str();
2821 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2823 userrec* n = new userrec(Instance);
2824 n->SetFd(FD_MAGIC_NUMBER);
2825 Instance->SendMode(y, stackresult.size(), n);
2832 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2834 if (params.size() < 4)
2837 std::string servername = params[0];
2838 std::string password = params[1];
2839 // hopcount is not used for a remote server, we calculate this ourselves
2840 std::string description = params[3];
2841 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2845 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2848 TreeServer* CheckDupe = Utils->FindServer(servername);
2851 this->WriteLine("ERROR :Server "+servername+" already exists!");
2852 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2855 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2856 ParentOfThis->AddChild(Node);
2857 params[3] = ":" + params[3];
2858 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2859 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2863 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2865 if (params.size() < 4)
2868 irc::string servername = params[0].c_str();
2869 std::string sname = params[0];
2870 std::string password = params[1];
2871 int hops = atoi(params[2].c_str());
2875 this->WriteLine("ERROR :Server too far away for authentication");
2876 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2879 std::string description = params[3];
2880 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2882 if ((x->Name == servername) && (x->RecvPass == password))
2884 TreeServer* CheckDupe = Utils->FindServer(sname);
2887 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2888 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2891 // Begin the sync here. this kickstarts the
2892 // other side, waiting in WAIT_AUTH_2 state,
2893 // into starting their burst, as it shows
2894 // that we're happy.
2895 this->LinkState = CONNECTED;
2896 // we should add the details of this server now
2897 // to the servers tree, as a child of the root
2899 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
2900 Utils->TreeRoot->AddChild(Node);
2901 params[3] = ":" + params[3];
2902 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
2903 this->bursting = true;
2904 this->DoBurst(Node);
2908 this->WriteLine("ERROR :Invalid credentials");
2909 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2913 bool Inbound_Server(std::deque<std::string> ¶ms)
2915 if (params.size() < 4)
2918 irc::string servername = params[0].c_str();
2919 std::string sname = params[0];
2920 std::string password = params[1];
2921 int hops = atoi(params[2].c_str());
2925 this->WriteLine("ERROR :Server too far away for authentication");
2926 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2929 std::string description = params[3];
2930 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2932 if ((x->Name == servername) && (x->RecvPass == password))
2934 TreeServer* CheckDupe = Utils->FindServer(sname);
2937 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2938 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2941 /* If the config says this link is encrypted, but the remote side
2942 * hasnt bothered to send the AES command before SERVER, then we
2943 * boot them off as we MUST have this connection encrypted.
2945 if ((x->EncryptionKey != "") && (!this->ctx_in))
2947 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2948 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2951 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2952 this->InboundServerName = sname;
2953 this->InboundDescription = description;
2954 // this is good. Send our details: Our server name and description and hopcount of 0,
2955 // along with the sendpass from this block.
2956 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2957 // move to the next state, we are now waiting for THEM.
2958 this->LinkState = WAIT_AUTH_2;
2962 this->WriteLine("ERROR :Invalid credentials");
2963 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2967 void Split(const std::string &line, std::deque<std::string> &n)
2970 irc::tokenstream tokens(line);
2972 while ((param = tokens.GetToken()) != "")
2977 bool ProcessLine(std::string &line)
2979 std::deque<std::string> params;
2980 irc::string command;
2986 line = line.substr(0, line.find_first_of("\r\n"));
2988 Instance->Log(DEBUG,"IN: %s", line.c_str());
2990 this->Split(line.c_str(),params);
2992 if ((params[0][0] == ':') && (params.size() > 1))
2994 prefix = params[0].substr(1);
2998 command = params[0].c_str();
3001 if ((!this->ctx_in) && (command == "AES"))
3003 std::string sserv = params[0];
3004 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3006 if ((x->EncryptionKey != "") && (x->Name == sserv))
3008 this->InitAES(x->EncryptionKey,sserv);
3014 else if ((this->ctx_in) && (command == "AES"))
3016 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());
3019 switch (this->LinkState)
3024 // Waiting for SERVER command from remote server. Server initiating
3025 // the connection sends the first SERVER command, listening server
3026 // replies with theirs if its happy, then if the initiator is happy,
3027 // it starts to send its net sync, which starts the merge, otherwise
3028 // it sends an ERROR.
3029 if (command == "PASS")
3031 /* Silently ignored */
3033 else if (command == "SERVER")
3035 return this->Inbound_Server(params);
3037 else if (command == "ERROR")
3039 return this->Error(params);
3041 else if (command == "USER")
3043 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3046 else if (command == "CAPAB")
3048 return this->Capab(params);
3050 else if ((command == "U") || (command == "S"))
3052 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3057 std::string error("ERROR :Invalid command in negotiation phase: ");
3058 error.append(command.c_str());
3059 this->WriteLine(error);
3064 // Waiting for start of other side's netmerge to say they liked our
3066 if (command == "SERVER")
3068 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3072 else if ((command == "U") || (command == "S"))
3074 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3077 else if (command == "BURST")
3081 /* If a time stamp is provided, try and check syncronization */
3082 time_t THEM = atoi(params[0].c_str());
3083 long delta = THEM-time(NULL);
3084 if ((delta < -600) || (delta > 600))
3086 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));
3087 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3090 else if ((delta < -60) || (delta > 60))
3092 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
3095 this->LinkState = CONNECTED;
3096 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3097 Utils->TreeRoot->AddChild(Node);
3099 params.push_back(InboundServerName);
3100 params.push_back("*");
3101 params.push_back("1");
3102 params.push_back(":"+InboundDescription);
3103 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3104 this->bursting = true;
3105 this->DoBurst(Node);
3107 else if (command == "ERROR")
3109 return this->Error(params);
3111 else if (command == "CAPAB")
3113 return this->Capab(params);
3118 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3122 if (command == "SERVER")
3124 // another server we connected to, which was in WAIT_AUTH_1 state,
3125 // has just sent us their credentials. If we get this far, theyre
3126 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3127 // if we're happy with this, we should send our netburst which
3128 // kickstarts the merge.
3129 return this->Outbound_Reply_Server(params);
3131 else if (command == "ERROR")
3133 return this->Error(params);
3137 // This is the 'authenticated' state, when all passwords
3138 // have been exchanged and anything past this point is taken
3143 std::string direction = prefix;
3144 userrec* t = this->Instance->FindNick(prefix);
3147 direction = t->server;
3149 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3150 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3152 if (route_back_again)
3153 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3158 * When there is activity on the socket, reset the ping counter so
3159 * that we're not wasting bandwidth pinging an active server.
3161 route_back_again->SetNextPingTime(time(NULL) + 60);
3162 route_back_again->SetPingFlag();
3165 if (command == "SVSMODE")
3167 /* Services expects us to implement
3168 * SVSMODE. In inspircd its the same as
3173 std::string target = "";
3174 /* Yes, know, this is a mess. Its reasonably fast though as we're
3175 * working with std::string here.
3177 if ((command == "NICK") && (params.size() > 1))
3179 return this->IntroduceClient(prefix,params);
3181 else if (command == "FJOIN")
3183 return this->ForceJoin(prefix,params);
3185 else if (command == "STATS")
3187 return this->Stats(prefix, params);
3189 else if (command == "MOTD")
3191 return this->Motd(prefix, params);
3193 else if (command == "ADMIN")
3195 return this->Admin(prefix, params);
3197 else if (command == "SERVER")
3199 return this->RemoteServer(prefix,params);
3201 else if (command == "ERROR")
3203 return this->Error(params);
3205 else if (command == "OPERTYPE")
3207 return this->OperType(prefix,params);
3209 else if (command == "FMODE")
3211 return this->ForceMode(prefix,params);
3213 else if (command == "KILL")
3215 return this->RemoteKill(prefix,params);
3217 else if (command == "FTOPIC")
3219 return this->ForceTopic(prefix,params);
3221 else if (command == "REHASH")
3223 return this->RemoteRehash(prefix,params);
3225 else if (command == "METADATA")
3227 return this->MetaData(prefix,params);
3229 else if (command == "REMSTATUS")
3231 return this->RemoveStatus(prefix,params);
3233 else if (command == "PING")
3236 * We just got a ping from a server that's bursting.
3237 * This can't be right, so set them to not bursting, and
3238 * apply their lines.
3242 this->bursting = false;
3243 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3247 prefix = this->GetName();
3249 return this->LocalPing(prefix,params);
3251 else if (command == "PONG")
3254 * We just got a pong from a server that's bursting.
3255 * This can't be right, so set them to not bursting, and
3256 * apply their lines.
3260 this->bursting = false;
3261 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3265 prefix = this->GetName();
3267 return this->LocalPong(prefix,params);
3269 else if (command == "VERSION")
3271 return this->ServerVersion(prefix,params);
3273 else if (command == "FHOST")
3275 return this->ChangeHost(prefix,params);
3277 else if (command == "FNAME")
3279 return this->ChangeName(prefix,params);
3281 else if (command == "ADDLINE")
3283 return this->AddLine(prefix,params);
3285 else if (command == "SVSNICK")
3289 prefix = this->GetName();
3291 return this->ForceNick(prefix,params);
3293 else if (command == "IDLE")
3295 return this->Whois(prefix,params);
3297 else if (command == "PUSH")
3299 return this->Push(prefix,params);
3301 else if (command == "TIME")
3303 return this->Time(prefix,params);
3305 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3307 std::string sourceserv = this->myhost;
3308 if (params.size() == 3)
3310 userrec* user = this->Instance->FindNick(params[1]);
3311 chanrec* chan = this->Instance->FindChan(params[0]);
3314 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3315 /* Yikes, the channels gone! */
3319 if (this->InboundServerName != "")
3321 sourceserv = this->InboundServerName;
3323 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3325 else if (command == "SVSJOIN")
3329 prefix = this->GetName();
3331 return this->ServiceJoin(prefix,params);
3333 else if (command == "SQUIT")
3335 if (params.size() == 2)
3337 this->Squit(Utils->FindServer(params[0]),params[1]);
3341 else if (command == "ENDBURST")
3343 this->bursting = false;
3344 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3345 std::string sourceserv = this->myhost;
3346 if (this->InboundServerName != "")
3348 sourceserv = this->InboundServerName;
3350 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3352 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
3353 rmode.Send(Instance);
3359 // not a special inter-server command.
3360 // Emulate the actual user doing the command,
3361 // this saves us having a huge ugly parser.
3362 userrec* who = this->Instance->FindNick(prefix);
3363 std::string sourceserv = this->myhost;
3364 if (this->InboundServerName != "")
3366 sourceserv = this->InboundServerName;
3370 if ((command == "NICK") && (params.size() > 0))
3372 /* On nick messages, check that the nick doesnt
3373 * already exist here. If it does, kill their copy,
3376 userrec* x = this->Instance->FindNick(params[0]);
3377 if ((x) && (x != who))
3379 std::deque<std::string> p;
3380 p.push_back(params[0]);
3381 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3382 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3384 p.push_back(prefix);
3385 p.push_back("Nickname collision");
3386 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3387 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3388 userrec* y = this->Instance->FindNick(prefix);
3391 userrec::QuitUser(this->Instance,y,"Nickname collision");
3393 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3397 target = who->server;
3398 const char* strparams[127];
3399 for (unsigned int q = 0; q < params.size(); q++)
3401 strparams[q] = params[q].c_str();
3403 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3406 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3413 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3419 // its not a user. Its either a server, or somethings screwed up.
3420 if (Utils->IsServer(prefix))
3422 target = this->Instance->Config->ServerName;
3426 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3430 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3439 virtual std::string GetName()
3441 std::string sourceserv = this->myhost;
3442 if (this->InboundServerName != "")
3444 sourceserv = this->InboundServerName;
3449 virtual void OnTimeout()
3451 if (this->LinkState == CONNECTING)
3453 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3454 Link* MyLink = Utils->FindLink(myhost);
3456 Utils->DoFailOver(MyLink);
3460 virtual void OnClose()
3462 // Connection closed.
3463 // If the connection is fully up (state CONNECTED)
3464 // then propogate a netsplit to all peers.
3465 std::string quitserver = this->myhost;
3466 if (this->InboundServerName != "")
3468 quitserver = this->InboundServerName;
3470 TreeServer* s = Utils->FindServer(quitserver);
3473 Squit(s,"Remote host closed the connection");
3476 if (quitserver != "")
3477 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3480 virtual int OnIncomingConnection(int newsock, char* ip)
3482 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3483 * or discovering if this port is the server port, we don't allow connections from any
3484 * IPs for which we don't have a link block.
3488 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3491 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3492 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3497 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3502 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip);
3503 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3508 /** This class is used to resolve server hostnames during /connect and autoconnect.
3509 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3510 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3511 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3512 * will have an IP address which we can then use to continue our connection.
3514 class ServernameResolver : public Resolver
3517 /** A copy of the Link tag info for what we're connecting to.
3518 * We take a copy, rather than using a pointer, just in case the
3519 * admin takes the tag away and rehashes while the domain is resolving.
3522 SpanningTreeUtilities* Utils;
3524 ServernameResolver(SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(Util)
3526 /* Nothing in here, folks */
3529 void OnLookupComplete(const std::string &result)
3531 /* Initiate the connection, now that we have an IP to use.
3532 * Passing a hostname directly to InspSocket causes it to
3533 * just bail and set its FD to -1.
3535 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3536 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3538 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str());
3539 if (newsocket->GetFd() > -1)
3545 /* Something barfed, show the opers */
3546 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3548 Utils->DoFailOver(&MyLink);
3553 void OnError(ResolverError e, const std::string &errormessage)
3556 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3557 Utils->DoFailOver(&MyLink);
3561 /** Handle resolving of server IPs for the cache
3563 class SecurityIPResolver : public Resolver
3567 SpanningTreeUtilities* Utils;
3569 SecurityIPResolver(SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(U)
3573 void OnLookupComplete(const std::string &result)
3575 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3576 Utils->ValidIPs.push_back(result);
3579 void OnError(ResolverError e, const std::string &errormessage)
3581 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3585 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3588 this->ReadConfiguration(true);
3589 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3592 SpanningTreeUtilities::~SpanningTreeUtilities()
3594 for (unsigned int i = 0; i < Bindings.size(); i++)
3596 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3597 ServerInstance->SE->DelFd(Bindings[i]);
3598 Bindings[i]->Close();
3599 DELETE(Bindings[i]);
3601 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3602 while (TreeRoot->ChildCount())
3604 TreeServer* child_server = TreeRoot->GetChild(0);
3605 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3608 TreeSocket* sock = child_server->GetSocket();
3609 ServerInstance->SE->DelFd(sock);
3617 void SpanningTreeUtilities::AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3619 for (unsigned int c = 0; c < list.size(); c++)
3621 if (list[c] == server)
3626 list.push_back(server);
3629 /** returns a list of DIRECT servernames for a specific channel */
3630 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3632 CUList *ulist = c->GetUsers();
3633 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3635 if (i->second->GetFd() < 0)
3637 TreeServer* best = this->BestRouteTo(i->second->server);
3639 AddThisServer(best,list);
3645 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3647 TreeServer* omitroute = this->BestRouteTo(omit);
3648 if ((command == "NOTICE") || (command == "PRIVMSG"))
3650 if (params.size() >= 2)
3653 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3655 params[0] = params[0].substr(1, params[0].length()-1);
3657 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3659 // special routing for private messages/notices
3660 userrec* d = ServerInstance->FindNick(params[0]);
3663 std::deque<std::string> par;
3664 par.push_back(params[0]);
3665 par.push_back(":"+params[1]);
3666 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3670 else if (*(params[0].c_str()) == '$')
3672 std::deque<std::string> par;
3673 par.push_back(params[0]);
3674 par.push_back(":"+params[1]);
3675 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3680 chanrec* c = ServerInstance->FindChan(params[0]);
3683 std::deque<TreeServer*> list;
3684 GetListOfServersForChannel(c,list);
3685 unsigned int lsize = list.size();
3686 for (unsigned int i = 0; i < lsize; i++)
3688 TreeSocket* Sock = list[i]->GetSocket();
3689 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3691 Sock->WriteLine(data);
3699 unsigned int items =this->TreeRoot->ChildCount();
3700 for (unsigned int x = 0; x < items; x++)
3702 TreeServer* Route = this->TreeRoot->GetChild(x);
3703 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3705 TreeSocket* Sock = Route->GetSocket();
3707 Sock->WriteLine(data);
3713 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3715 TreeServer* omitroute = this->BestRouteTo(omit);
3716 std::string FullLine = ":" + prefix + " " + command;
3717 unsigned int words = params.size();
3718 for (unsigned int x = 0; x < words; x++)
3720 FullLine = FullLine + " " + params[x];
3722 unsigned int items = this->TreeRoot->ChildCount();
3723 for (unsigned int x = 0; x < items; x++)
3725 TreeServer* Route = this->TreeRoot->GetChild(x);
3726 // Send the line IF:
3727 // The route has a socket (its a direct connection)
3728 // The route isnt the one to be omitted
3729 // The route isnt the path to the one to be omitted
3730 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3732 TreeSocket* Sock = Route->GetSocket();
3734 Sock->WriteLine(FullLine);
3740 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3742 std::string FullLine = ":" + prefix + " " + command;
3743 unsigned int words = params.size();
3744 for (unsigned int x = 0; x < words; x++)
3746 FullLine = FullLine + " " + params[x];
3748 unsigned int items = this->TreeRoot->ChildCount();
3749 for (unsigned int x = 0; x < items; x++)
3751 TreeServer* Route = this->TreeRoot->GetChild(x);
3752 if (Route && Route->GetSocket())
3754 TreeSocket* Sock = Route->GetSocket();
3756 Sock->WriteLine(FullLine);
3762 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3764 std::string spfx = prefix;
3765 std::string scmd = command;
3766 return this->DoOneToMany(spfx, scmd, params);
3769 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3771 std::string spfx = prefix;
3772 std::string scmd = command;
3773 return this->DoOneToAllButSender(spfx, scmd, params, omit);
3776 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
3778 TreeServer* Route = this->BestRouteTo(target);
3781 std::string FullLine = ":" + prefix + " " + command;
3782 unsigned int words = params.size();
3783 for (unsigned int x = 0; x < words; x++)
3785 FullLine = FullLine + " " + params[x];
3787 if (Route && Route->GetSocket())
3789 TreeSocket* Sock = Route->GetSocket();
3791 Sock->WriteLine(FullLine);
3801 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
3803 ConfigReader* Conf = new ConfigReader(ServerInstance);
3806 for (int j =0; j < Conf->Enumerate("bind"); j++)
3808 std::string Type = Conf->ReadValue("bind","type",j);
3809 std::string IP = Conf->ReadValue("bind","address",j);
3810 int Port = Conf->ReadInteger("bind","port",j,true);
3811 if (Type == "servers")
3813 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), Port);
3818 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(),Port,true,10);
3819 if (listener->GetState() == I_LISTENING)
3821 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), Port);
3822 Bindings.push_back(listener);
3826 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3830 ServerInstance->Log(DEBUG,"Done with this binding");
3834 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3835 HideULines = Conf->ReadFlag("options","hideulines",0);
3836 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
3839 for (int j =0; j < Conf->Enumerate("link"); j++)
3842 std::string Allow = Conf->ReadValue("link","allowmask",j);
3843 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3844 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3845 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
3846 L.Port = Conf->ReadInteger("link","port",j,true);
3847 L.SendPass = Conf->ReadValue("link","sendpass",j);
3848 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3849 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3850 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3851 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3852 L.Timeout = Conf->ReadInteger("link","timeout",j,true);
3853 L.NextConnectTime = time(NULL) + L.AutoConnect;
3854 /* Bugfix by brain, do not allow people to enter bad configurations */
3855 if (L.Name != ServerInstance->Config->ServerName)
3857 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3859 ValidIPs.push_back(L.IPAddr);
3862 ValidIPs.push_back(Allow);
3864 /* Needs resolving */
3866 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3870 SecurityIPResolver* sr = new SecurityIPResolver(this, ServerInstance, L.IPAddr, L);
3871 ServerInstance->AddResolver(sr);
3873 catch (ModuleException& e)
3875 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3879 LinkBlocks.push_back(L);
3880 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3886 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3888 else if (L.RecvPass == "")
3890 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3892 else if (L.SendPass == "")
3894 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3896 else if (L.Name == "")
3898 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3902 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3908 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
3916 class ModuleSpanningTree : public Module
3920 unsigned int max_local;
3921 unsigned int max_global;
3922 cmd_rconnect* command_rconnect;
3923 SpanningTreeUtilities* Utils;
3927 ModuleSpanningTree(InspIRCd* Me)
3928 : Module::Module(Me), max_local(0), max_global(0)
3930 Utils = new SpanningTreeUtilities(Me, this);
3932 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
3933 ServerInstance->AddCommand(command_rconnect);
3936 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3938 std::string Parent = Utils->TreeRoot->GetName();
3939 if (Current->GetParent())
3941 Parent = Current->GetParent()->GetName();
3943 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3945 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3949 ShowLinks(Current->GetChild(q),user,hops+1);
3954 ShowLinks(Current->GetChild(q),user,hops+1);
3957 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3958 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3960 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());
3963 int CountLocalServs()
3965 return Utils->TreeRoot->ChildCount();
3970 return Utils->serverlist.size();
3973 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3975 ShowLinks(Utils->TreeRoot,user,0);
3976 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3980 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3982 unsigned int n_users = ServerInstance->UserCount();
3984 /* Only update these when someone wants to see them, more efficient */
3985 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3986 max_local = ServerInstance->LocalUserCount();
3987 if (n_users > max_global)
3988 max_global = n_users;
3990 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3991 if (ServerInstance->OperCount())
3992 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3993 if (ServerInstance->UnregisteredUserCount())
3994 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3995 if (ServerInstance->ChannelCount())
3996 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3997 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3998 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3999 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
4003 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
4005 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4009 for (int t = 0; t < depth; t++)
4011 matrix[line][t] = ' ';
4014 // For Aligning, we need to work out exactly how deep this thing is, and produce
4015 // a 'Spacer' String to compensate.
4018 memset(spacer,' ',40);
4019 if ((40 - Current->GetName().length() - depth) > 1) {
4020 spacer[40 - Current->GetName().length() - depth] = '\0';
4029 if (ServerInstance->clientlist.size() == 0) {
4030 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4035 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
4037 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4038 totusers += Current->GetUserCount();
4040 strlcpy(&matrix[line][depth],text,80);
4042 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4044 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4048 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4053 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4059 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4063 /* Remote MOTD, the server is within the 1st parameter */
4064 std::deque<std::string> params;
4065 params.push_back(parameters[0]);
4067 /* Send it out remotely, generate no reply yet */
4068 TreeServer* s = Utils->FindServerMask(parameters[0]);
4071 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4075 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4082 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4086 /* Remote ADMIN, the server is within the 1st parameter */
4087 std::deque<std::string> params;
4088 params.push_back(parameters[0]);
4090 /* Send it out remotely, generate no reply yet */
4091 TreeServer* s = Utils->FindServerMask(parameters[0]);
4094 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4098 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4105 int HandleStats(const char** parameters, int pcnt, userrec* user)
4109 /* Remote STATS, the server is within the 2nd parameter */
4110 std::deque<std::string> params;
4111 params.push_back(parameters[0]);
4112 params.push_back(parameters[1]);
4113 /* Send it out remotely, generate no reply yet */
4114 TreeServer* s = Utils->FindServerMask(parameters[1]);
4117 params[1] = s->GetName();
4118 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4122 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4129 // Ok, prepare to be confused.
4130 // After much mulling over how to approach this, it struck me that
4131 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4132 // keeping track of a ton of ascii characters, and line by line
4133 // under recursion working out where to place them using multiplications
4134 // and divisons, we instead render the map onto a backplane of characters
4135 // (a character matrix), then draw the branches as a series of "L" shapes
4136 // from the nodes. This is not only friendlier on CPU it uses less stack.
4138 void HandleMap(const char** parameters, int pcnt, userrec* user)
4140 // This array represents a virtual screen which we will
4141 // "scratch" draw to, as the console device of an irc
4142 // client does not provide for a proper terminal.
4144 float totservers = 0;
4145 char matrix[128][80];
4146 for (unsigned int t = 0; t < 128; t++)
4148 matrix[t][0] = '\0';
4151 // The only recursive bit is called here.
4152 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4153 // Process each line one by one. The algorithm has a limit of
4154 // 128 servers (which is far more than a spanning tree should have
4155 // anyway, so we're ok). This limit can be raised simply by making
4156 // the character matrix deeper, 128 rows taking 10k of memory.
4157 for (int l = 1; l < line; l++)
4159 // scan across the line looking for the start of the
4160 // servername (the recursive part of the algorithm has placed
4161 // the servers at indented positions depending on what they
4163 int first_nonspace = 0;
4164 while (matrix[l][first_nonspace] == ' ')
4169 // Draw the `- (corner) section: this may be overwritten by
4170 // another L shape passing along the same vertical pane, becoming
4171 // a |- (branch) section instead.
4172 matrix[l][first_nonspace] = '-';
4173 matrix[l][first_nonspace-1] = '`';
4175 // Draw upwards until we hit the parent server, causing possibly
4176 // other corners (`-) to become branches (|-)
4177 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4179 matrix[l2][first_nonspace-1] = '|';
4183 // dump the whole lot to the user. This is the easy bit, honest.
4184 for (int t = 0; t < line; t++)
4186 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4188 float avg_users = totusers / totservers;
4189 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);
4190 user->WriteServ("007 %s :End of /MAP",user->nick);
4194 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4196 TreeServer* s = Utils->FindServerMask(parameters[0]);
4199 if (s == Utils->TreeRoot)
4201 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4204 TreeSocket* sock = s->GetSocket();
4207 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4208 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4209 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
4210 ServerInstance->SE->DelFd(sock);
4216 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
4221 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4226 int HandleTime(const char** parameters, int pcnt, userrec* user)
4228 if ((IS_LOCAL(user)) && (pcnt))
4230 TreeServer* found = Utils->FindServerMask(parameters[0]);
4233 // we dont' override for local server
4234 if (found == Utils->TreeRoot)
4237 std::deque<std::string> params;
4238 params.push_back(found->GetName());
4239 params.push_back(user->nick);
4240 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4244 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4250 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4252 if ((IS_LOCAL(user)) && (pcnt > 1))
4254 userrec* remote = ServerInstance->FindNick(parameters[1]);
4255 if ((remote) && (remote->GetFd() < 0))
4257 std::deque<std::string> params;
4258 params.push_back(parameters[1]);
4259 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4264 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4265 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4272 void DoPingChecks(time_t curtime)
4274 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4276 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4277 TreeSocket* sock = serv->GetSocket();
4280 if (curtime >= serv->NextPingTime())
4282 if (serv->AnsweredLastPing())
4284 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4285 serv->SetNextPingTime(curtime + 60);
4289 // they didnt answer, boot them
4290 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4291 sock->Squit(serv,"Ping timeout");
4292 ServerInstance->SE->DelFd(sock);
4302 void ConnectServer(Link* x)
4306 /* Do we already have an IP? If so, no need to resolve it. */
4307 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4309 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str());
4310 if (newsocket->GetFd() > -1)
4312 /* Handled automatically on success */
4316 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4318 Utils->DoFailOver(x);
4325 ServernameResolver* snr = new ServernameResolver(Utils, ServerInstance,x->IPAddr, *x);
4326 ServerInstance->AddResolver(snr);
4328 catch (ModuleException& e)
4330 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4331 Utils->DoFailOver(x);
4336 void AutoConnectServers(time_t curtime)
4338 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4340 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4342 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4343 x->NextConnectTime = curtime + x->AutoConnect;
4344 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4345 if (x->FailOver.length())
4347 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4350 /* The failover for this server is currently a member of the network.
4351 * The failover probably succeeded, where the main link did not.
4352 * Don't try the main link until the failover is gone again.
4359 // an autoconnected server is not connected. Check if its time to connect it
4360 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4361 this->ConnectServer(&(*x));
4367 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4369 // we've already checked if pcnt > 0, so this is safe
4370 TreeServer* found = Utils->FindServerMask(parameters[0]);
4373 std::string Version = found->GetVersion();
4374 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4375 if (found == Utils->TreeRoot)
4377 std::stringstream out(ServerInstance->Config->data005);
4378 std::string token = "";
4379 std::string line5 = "";
4380 int token_counter = 0;
4385 line5 = line5 + token + " ";
4388 if ((token_counter >= 13) || (out.eof() == true))
4390 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4399 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4404 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4406 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4408 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4410 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4413 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);
4414 ConnectServer(&(*x));
4419 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());
4424 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4428 virtual int OnStats(char statschar, userrec* user, string_list &results)
4430 if (statschar == 'c')
4432 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4434 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');
4435 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4437 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4438 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);
4444 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4446 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4450 if (command == "CONNECT")
4452 return this->HandleConnect(parameters,pcnt,user);
4454 else if (command == "STATS")
4456 return this->HandleStats(parameters,pcnt,user);
4458 else if (command == "MOTD")
4460 return this->HandleMotd(parameters,pcnt,user);
4462 else if (command == "ADMIN")
4464 return this->HandleAdmin(parameters,pcnt,user);
4466 else if (command == "SQUIT")
4468 return this->HandleSquit(parameters,pcnt,user);
4470 else if (command == "MAP")
4472 this->HandleMap(parameters,pcnt,user);
4475 else if ((command == "TIME") && (pcnt > 0))
4477 return this->HandleTime(parameters,pcnt,user);
4479 else if (command == "LUSERS")
4481 this->HandleLusers(parameters,pcnt,user);
4484 else if (command == "LINKS")
4486 this->HandleLinks(parameters,pcnt,user);
4489 else if (command == "WHOIS")
4494 return this->HandleRemoteWhois(parameters,pcnt,user);
4497 else if ((command == "VERSION") && (pcnt > 0))
4499 this->HandleVersion(parameters,pcnt,user);
4506 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4508 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4510 // this bit of code cleverly routes all module commands
4511 // to all remote severs *automatically* so that modules
4512 // can just handle commands locally, without having
4513 // to have any special provision in place for remote
4514 // commands and linking protocols.
4515 std::deque<std::string> params;
4517 for (int j = 0; j < pcnt; j++)
4519 if (strchr(parameters[j],' '))
4521 params.push_back(":" + std::string(parameters[j]));
4525 params.push_back(std::string(parameters[j]));
4528 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4529 Utils->DoOneToMany(user->nick,command,params);
4533 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4535 TreeServer* s = Utils->FindServer(servername);
4538 description = s->GetDesc();
4542 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4544 if (IS_LOCAL(source))
4546 std::deque<std::string> params;
4547 params.push_back(dest->nick);
4548 params.push_back(channel->name);
4549 Utils->DoOneToMany(source->nick,"INVITE",params);
4553 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4555 std::deque<std::string> params;
4556 params.push_back(chan->name);
4557 params.push_back(":"+topic);
4558 Utils->DoOneToMany(user->nick,"TOPIC",params);
4561 virtual void OnWallops(userrec* user, const std::string &text)
4565 std::deque<std::string> params;
4566 params.push_back(":"+text);
4567 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4571 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4573 if (target_type == TYPE_USER)
4575 userrec* d = (userrec*)dest;
4576 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4578 std::deque<std::string> params;
4580 params.push_back(d->nick);
4581 params.push_back(":"+text);
4582 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4585 else if (target_type == TYPE_CHANNEL)
4589 chanrec *c = (chanrec*)dest;
4592 std::string cname = c->name;
4594 cname = status + cname;
4595 std::deque<TreeServer*> list;
4596 Utils->GetListOfServersForChannel(c,list);
4597 unsigned int ucount = list.size();
4598 for (unsigned int i = 0; i < ucount; i++)
4600 TreeSocket* Sock = list[i]->GetSocket();
4602 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4607 else if (target_type == TYPE_SERVER)
4611 char* target = (char*)dest;
4612 std::deque<std::string> par;
4613 par.push_back(target);
4614 par.push_back(":"+text);
4615 Utils->DoOneToMany(user->nick,"NOTICE",par);
4620 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4622 if (target_type == TYPE_USER)
4624 // route private messages which are targetted at clients only to the server
4625 // which needs to receive them
4626 userrec* d = (userrec*)dest;
4627 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4629 std::deque<std::string> params;
4631 params.push_back(d->nick);
4632 params.push_back(":"+text);
4633 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4636 else if (target_type == TYPE_CHANNEL)
4640 chanrec *c = (chanrec*)dest;
4643 std::string cname = c->name;
4645 cname = status + cname;
4646 std::deque<TreeServer*> list;
4647 Utils->GetListOfServersForChannel(c,list);
4648 unsigned int ucount = list.size();
4649 for (unsigned int i = 0; i < ucount; i++)
4651 TreeSocket* Sock = list[i]->GetSocket();
4653 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4658 else if (target_type == TYPE_SERVER)
4662 char* target = (char*)dest;
4663 std::deque<std::string> par;
4664 par.push_back(target);
4665 par.push_back(":"+text);
4666 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4671 virtual void OnBackgroundTimer(time_t curtime)
4673 AutoConnectServers(curtime);
4674 DoPingChecks(curtime);
4677 virtual void OnUserJoin(userrec* user, chanrec* channel)
4679 // Only do this for local users
4682 std::deque<std::string> params;
4684 params.push_back(channel->name);
4685 // set up their permissions and the channel TS with FJOIN.
4686 // All users are FJOINed now, because a module may specify
4687 // new joining permissions for the user.
4689 params.push_back(channel->name);
4690 params.push_back(ConvToStr(channel->age));
4691 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4692 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4696 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4698 // only occurs for local clients
4699 if (user->registered != REG_ALL)
4701 std::deque<std::string> params;
4702 params.push_back(newhost);
4703 Utils->DoOneToMany(user->nick,"FHOST",params);
4706 virtual void OnChangeName(userrec* user, const std::string &gecos)
4708 // only occurs for local clients
4709 if (user->registered != REG_ALL)
4711 std::deque<std::string> params;
4712 params.push_back(gecos);
4713 Utils->DoOneToMany(user->nick,"FNAME",params);
4716 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4720 std::deque<std::string> params;
4721 params.push_back(channel->name);
4722 if (partmessage != "")
4723 params.push_back(":"+partmessage);
4724 Utils->DoOneToMany(user->nick,"PART",params);
4728 virtual void OnUserConnect(userrec* user)
4730 char agestr[MAXBUF];
4733 std::deque<std::string> params;
4734 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4735 params.push_back(agestr);
4736 params.push_back(user->nick);
4737 params.push_back(user->host);
4738 params.push_back(user->dhost);
4739 params.push_back(user->ident);
4740 params.push_back("+"+std::string(user->FormatModes()));
4741 params.push_back(user->GetIPString());
4742 params.push_back(":"+std::string(user->fullname));
4743 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4745 // User is Local, change needs to be reflected!
4746 TreeServer* SourceServer = Utils->FindServer(user->server);
4749 SourceServer->AddUserCount();
4755 virtual void OnUserQuit(userrec* user, const std::string &reason)
4757 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4759 std::deque<std::string> params;
4760 params.push_back(":"+reason);
4761 Utils->DoOneToMany(user->nick,"QUIT",params);
4763 // Regardless, We need to modify the user Counts..
4764 TreeServer* SourceServer = Utils->FindServer(user->server);
4767 SourceServer->DelUserCount();
4772 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4776 std::deque<std::string> params;
4777 params.push_back(user->nick);
4778 Utils->DoOneToMany(oldnick,"NICK",params);
4782 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4784 if ((source) && (IS_LOCAL(source)))
4786 std::deque<std::string> params;
4787 params.push_back(chan->name);
4788 params.push_back(user->nick);
4789 params.push_back(":"+reason);
4790 Utils->DoOneToMany(source->nick,"KICK",params);
4794 std::deque<std::string> params;
4795 params.push_back(chan->name);
4796 params.push_back(user->nick);
4797 params.push_back(":"+reason);
4798 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4802 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4804 std::deque<std::string> params;
4805 params.push_back(dest->nick);
4806 params.push_back(":"+reason);
4807 Utils->DoOneToMany(source->nick,"KILL",params);
4810 virtual void OnRehash(const std::string ¶meter)
4812 if (parameter != "")
4814 std::deque<std::string> params;
4815 params.push_back(parameter);
4816 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4818 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4820 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4821 ServerInstance->RehashServer();
4824 Utils->ReadConfiguration(false);
4827 // note: the protocol does not allow direct umode +o except
4828 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4830 virtual void OnOper(userrec* user, const std::string &opertype)
4834 std::deque<std::string> params;
4835 params.push_back(opertype);
4836 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
4840 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4842 if (IS_LOCAL(source))
4845 snprintf(type,8,"%cLINE",linetype);
4846 std::string stype = type;
4849 char sduration[MAXBUF];
4850 snprintf(sduration,MAXBUF,"%ld",duration);
4851 std::deque<std::string> params;
4852 params.push_back(host);
4853 params.push_back(sduration);
4854 params.push_back(":"+reason);
4855 Utils->DoOneToMany(source->nick,stype,params);
4859 std::deque<std::string> params;
4860 params.push_back(host);
4861 Utils->DoOneToMany(source->nick,stype,params);
4866 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4868 OnLine(source,hostmask,true,'G',duration,reason);
4871 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4873 OnLine(source,ipmask,true,'Z',duration,reason);
4876 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4878 OnLine(source,nickmask,true,'Q',duration,reason);
4881 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4883 OnLine(source,hostmask,true,'E',duration,reason);
4886 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4888 OnLine(source,hostmask,false,'G',0,"");
4891 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4893 OnLine(source,ipmask,false,'Z',0,"");
4896 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4898 OnLine(source,nickmask,false,'Q',0,"");
4901 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4903 OnLine(source,hostmask,false,'E',0,"");
4906 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4908 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4910 if (target_type == TYPE_USER)
4912 userrec* u = (userrec*)dest;
4913 std::deque<std::string> params;
4914 params.push_back(u->nick);
4915 params.push_back(text);
4916 Utils->DoOneToMany(user->nick,"MODE",params);
4920 chanrec* c = (chanrec*)dest;
4921 std::deque<std::string> params;
4922 params.push_back(c->name);
4923 params.push_back(text);
4924 Utils->DoOneToMany(user->nick,"MODE",params);
4929 virtual void OnSetAway(userrec* user)
4933 std::deque<std::string> params;
4934 params.push_back(":"+std::string(user->awaymsg));
4935 Utils->DoOneToMany(user->nick,"AWAY",params);
4939 virtual void OnCancelAway(userrec* user)
4943 std::deque<std::string> params;
4945 Utils->DoOneToMany(user->nick,"AWAY",params);
4949 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4951 TreeSocket* s = (TreeSocket*)opaque;
4954 if (target_type == TYPE_USER)
4956 userrec* u = (userrec*)target;
4957 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4961 chanrec* c = (chanrec*)target;
4962 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4967 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4969 TreeSocket* s = (TreeSocket*)opaque;
4972 if (target_type == TYPE_USER)
4974 userrec* u = (userrec*)target;
4975 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4977 else if (target_type == TYPE_OTHER)
4979 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4981 else if (target_type == TYPE_CHANNEL)
4983 chanrec* c = (chanrec*)target;
4984 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4989 virtual void OnEvent(Event* event)
4991 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4993 if (event->GetEventID() == "send_metadata")
4995 if (params->size() < 3)
4997 (*params)[2] = ":" + (*params)[2];
4998 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
5000 else if (event->GetEventID() == "send_topic")
5002 if (params->size() < 2)
5004 (*params)[1] = ":" + (*params)[1];
5005 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
5006 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
5007 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5009 else if (event->GetEventID() == "send_mode")
5011 if (params->size() < 2)
5013 // Insert the TS value of the object, either userrec or chanrec
5015 userrec* a = ServerInstance->FindNick((*params)[0]);
5022 chanrec* a = ServerInstance->FindChan((*params)[0]);
5028 params->insert(params->begin() + 1,ConvToStr(ourTS));
5029 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5031 else if (event->GetEventID() == "send_push")
5033 if (params->size() < 2)
5036 userrec *a = ServerInstance->FindNick((*params)[0]);
5041 (*params)[1] = ":" + (*params)[1];
5042 Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
5046 virtual ~ModuleSpanningTree()
5048 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5049 /* This will also free the listeners */
5053 virtual Version GetVersion()
5055 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5058 void Implements(char* List)
5060 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5061 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5062 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5063 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5064 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5065 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5066 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5069 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5070 * so that any activity it sees is FINAL, e.g. we arent going to send out
5071 * a NICK message before m_cloaking has finished putting the +x on the user,
5073 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5074 * the module call queue.
5076 Priority Prioritize()
5078 return PRIORITY_LAST;
5082 void SpanningTreeUtilities::DoFailOver(Link* x)
5084 if (x->FailOver.length())
5086 if (x->FailOver == x->Name)
5088 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());
5091 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5094 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5095 Creator->ConnectServer(TryThisOne);
5099 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5104 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5106 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5108 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5117 class ModuleSpanningTreeFactory : public ModuleFactory
5120 ModuleSpanningTreeFactory()
5124 ~ModuleSpanningTreeFactory()
5128 virtual Module * CreateModule(InspIRCd* Me)
5130 return new ModuleSpanningTree(Me);
5136 extern "C" void * init_module( void )
5138 return new ModuleSpanningTreeFactory;