1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 /* $ModDesc: Povides a spanning tree server link protocol */
16 #include "configreader.h"
20 #include "commands/cmd_whois.h"
21 #include "commands/cmd_stats.h"
26 #include "transport.h"
28 /** If you make a change which breaks the protocol, increment this.
29 * If you completely change the protocol, completely change the number.
31 * IMPORTANT: If you make changes, document your changes here, without fail:
32 * http://www.inspircd.org/wiki/List_of_protocol_changes_between_versions
34 * Failure to document your protocol changes will result in a painfully
35 * painful death by pain. You have been warned.
37 const long ProtocolVersion = 1103;
40 * The server list in InspIRCd is maintained as two structures
41 * which hold the data in different ways. Most of the time, we
42 * want to very quicky obtain three pieces of information:
44 * (1) The information on a server
45 * (2) The information on the server we must send data through
46 * to actually REACH the server we're after
47 * (3) Potentially, the child/parent objects of this server
49 * The InspIRCd spanning protocol provides easy access to these
50 * by storing the data firstly in a recursive structure, where
51 * each item references its parent item, and a dynamic list
52 * of child items, and another structure which stores the items
53 * hashed, linearly. This means that if we want to find a server
54 * by name quickly, we can look it up in the hash, avoiding
55 * any O(n) lookups. If however, during a split or sync, we want
56 * to apply an operation to a server, and any of its child objects
57 * we can resort to recursion to walk the tree structure.
58 * Any socket can have one of five states at any one time.
59 * The LISTENER state indicates a socket which is listening
60 * for connections. It cannot receive data itself, only incoming
62 * The CONNECTING state indicates an outbound socket which is
63 * waiting to be writeable.
64 * The WAIT_AUTH_1 state indicates the socket is outbound and
65 * has successfully connected, but has not yet sent and received
67 * The WAIT_AUTH_2 state indicates that the socket is inbound
68 * (allocated by a LISTENER) but has not yet sent and received
70 * The CONNECTED state represents a fully authorized, fully
73 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
75 /* Foward declarations */
79 class ModuleSpanningTree;
80 class SpanningTreeUtilities;
82 /* This hash_map holds the hash equivalent of the server
83 * tree, used for rapid linear lookups.
85 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
87 typedef std::map<TreeServer*,TreeServer*> TreeServerList;
89 /** A group of modules that implement InspSocketHook
90 * that we can use to hook our server to server connections.
92 typedef std::map<irc::string, Module*> hookmodules;
94 /** The Link class might as well be a struct,
95 * but this is C++ and we don't believe in structs (!).
96 * It holds the entire information of one <link>
97 * tag from the main config file. We maintain a list
98 * of them, and populate the list on rehash/load.
100 class Link : public classbase
106 std::string SendPass;
107 std::string RecvPass;
108 unsigned long AutoConnect;
109 time_t NextConnectTime;
110 bool HiddenFromStats;
111 std::string FailOver;
116 class HandshakeTimer : public InspTimer
122 SpanningTreeUtilities* Utils;
125 HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u);
126 virtual void Tick(time_t TIME);
130 /** Contains helper functions and variables for this module,
131 * and keeps them out of the global namespace
133 class SpanningTreeUtilities
138 InspIRCd* ServerInstance;
142 ModuleSpanningTree* Creator;
143 /** Flatten links and /MAP for non-opers
146 /** Hide U-Lined servers in /MAP and /LINKS
149 /** Announce TS changes to channels on merge
151 bool AnnounceTSChange;
152 /** Synchronize timestamps between servers
155 /** Socket bindings for listening sockets
157 std::vector<TreeSocket*> Bindings;
158 /** This variable represents the root of the server tree
160 TreeServer *TreeRoot;
161 /** IPs allowed to link to us
163 std::vector<std::string> ValidIPs;
164 /** Hash of currently connected servers by name
166 server_hash serverlist;
167 /** Holds the data from the <link> tags in the conf
169 std::vector<Link> LinkBlocks;
172 std::vector<std::string> hooknames;
174 /** Initialise utility class
176 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
177 /** Destroy class and free listeners etc
179 ~SpanningTreeUtilities();
180 /** Send a message from this server to one other local or remote
182 bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
183 /** Send a message from this server to all but one other, local or remote
185 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
186 /** Send a message from this server to all but one other, local or remote
188 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
189 /** Send a message from this server to all others
191 bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
192 /** Send a message from this server to all others
194 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
195 /** 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)
197 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
198 /** Read the spanningtree module's tags from the config file
200 void ReadConfiguration(bool rebind);
201 /** Add a server to the server list for GetListOfServersForChannel
203 void AddThisServer(TreeServer* server, TreeServerList &list);
204 /** Compile a list of servers which contain members of channel c
206 void GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list);
207 /** Find a server by name
209 TreeServer* FindServer(const std::string &ServerName);
210 /** Find a route to a server by name
212 TreeServer* BestRouteTo(const std::string &ServerName);
213 /** Find a server by glob mask
215 TreeServer* FindServerMask(const std::string &ServerName);
216 /** Returns true if this is a server name we recognise
218 bool IsServer(const std::string &ServerName);
219 /** Attempt to connect to the failover link of link x
221 void DoFailOver(Link* x);
222 /** Find a link tag from a server name
224 Link* FindLink(const std::string& name);
228 /** Each server in the tree is represented by one class of
229 * type TreeServer. A locally connected TreeServer can
230 * have a class of type TreeSocket associated with it, for
231 * remote servers, the TreeSocket entry will be NULL.
232 * Each server also maintains a pointer to its parent
233 * (NULL if this server is ours, at the top of the tree)
234 * and a pointer to its "Route" (see the comments in the
235 * constructors below), and also a dynamic list of pointers
236 * to its children which can be iterated recursively
237 * if required. Creating or deleting objects of type
238 i* TreeServer automatically maintains the hash_map of
239 * TreeServer items, deleting and inserting them as they
240 * are created and destroyed.
242 class TreeServer : public classbase
244 InspIRCd* ServerInstance; /* Creator */
245 TreeServer* Parent; /* Parent entry */
246 TreeServer* Route; /* Route entry */
247 std::vector<TreeServer*> Children; /* List of child objects */
248 irc::string ServerName; /* Server's name */
249 std::string ServerDesc; /* Server's description */
250 std::string VersionString; /* Version string or empty string */
251 int UserCount; /* Not used in this version */
252 int OperCount; /* Not used in this version */
253 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
254 time_t NextPing; /* After this time, the server should be PINGed*/
255 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
256 SpanningTreeUtilities* Utils; /* Utility class */
260 /** We don't use this constructor. Its a dummy, and won't cause any insertion
261 * of the TreeServer into the hash_map. See below for the two we DO use.
263 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
269 UserCount = OperCount = 0;
270 VersionString = ServerInstance->GetVersionString();
273 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
274 * represents our own server. Therefore, it has no route, no parent, and
275 * no socket associated with it. Its version string is our own local version.
277 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
281 UserCount = ServerInstance->UserCount();
282 OperCount = ServerInstance->OperCount();
283 VersionString = ServerInstance->GetVersionString();
285 Socket = NULL; /* Fix by brain */
289 /** When we create a new server, we call this constructor to initialize it.
290 * This constructor initializes the server's Route and Parent, and sets up
291 * its ping counters so that it will be pinged one minute from now.
293 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
294 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
297 UserCount = OperCount = 0;
298 this->SetNextPingTime(time(NULL) + 60);
301 /* find the 'route' for this server (e.g. the one directly connected
302 * to the local server, which we can use to reach it)
304 * In the following example, consider we have just added a TreeServer
305 * class for server G on our network, of which we are server A.
306 * To route traffic to G (marked with a *) we must send the data to
307 * B (marked with a +) so this algorithm initializes the 'Route'
308 * value to point at whichever server traffic must be routed through
309 * to get here. If we were to try this algorithm with server B,
310 * the Route pointer would point at its own object ('this').
320 * We only run this algorithm when a server is created, as
321 * the routes remain constant while ever the server exists, and
322 * do not need to be re-calculated.
326 if (Route == Utils->TreeRoot)
332 while (this->Route->GetParent() != Utils->TreeRoot)
334 this->Route = Route->GetParent();
338 /* Because recursive code is slow and takes a lot of resources,
339 * we store two representations of the server tree. The first
340 * is a recursive structure where each server references its
341 * children and its parent, which is used for netbursts and
342 * netsplits to dump the whole dataset to the other server,
343 * and the second is used for very fast lookups when routing
344 * messages and is instead a hash_map, where each item can
345 * be referenced by its server name. The AddHashEntry()
346 * call below automatically inserts each TreeServer class
347 * into the hash_map as it is created. There is a similar
348 * maintainance call in the destructor to tidy up deleted
352 this->AddHashEntry();
355 int QuitUsers(const std::string &reason)
357 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
358 const char* reason_s = reason.c_str();
359 std::vector<userrec*> time_to_die;
360 for (user_hash::iterator n = ServerInstance->clientlist->begin(); n != ServerInstance->clientlist->end(); n++)
362 if (!strcmp(n->second->server, this->ServerName.c_str()))
364 time_to_die.push_back(n->second);
367 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
369 userrec* a = (userrec*)*n;
370 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
372 userrec::QuitUser(ServerInstance,a,reason_s);
374 return time_to_die.size();
377 /** This method is used to add the structure to the
378 * hash_map for linear searches. It is only called
379 * by the constructors.
383 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
384 if (iter == Utils->serverlist.end())
385 Utils->serverlist[this->ServerName.c_str()] = this;
388 /** This method removes the reference to this object
389 * from the hash_map which is used for linear searches.
390 * It is only called by the default destructor.
394 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
395 if (iter != Utils->serverlist.end())
396 Utils->serverlist.erase(iter);
399 /** These accessors etc should be pretty self-
402 TreeServer* GetRoute()
407 std::string GetName()
409 return ServerName.c_str();
412 std::string GetDesc()
417 std::string GetVersion()
419 return VersionString;
422 void SetNextPingTime(time_t t)
425 LastPingWasGood = false;
428 time_t NextPingTime()
433 bool AnsweredLastPing()
435 return LastPingWasGood;
440 LastPingWasGood = true;
463 TreeSocket* GetSocket()
468 TreeServer* GetParent()
473 void SetVersion(const std::string &Version)
475 VersionString = Version;
478 unsigned int ChildCount()
480 return Children.size();
483 TreeServer* GetChild(unsigned int n)
485 if (n < Children.size())
487 /* Make sure they cant request
488 * an out-of-range object. After
489 * all we know what these programmer
490 * types are like *grin*.
500 void AddChild(TreeServer* Child)
502 Children.push_back(Child);
505 bool DelChild(TreeServer* Child)
507 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
518 /** Removes child nodes of this node, and of that node, etc etc.
519 * This is used during netsplits to automatically tidy up the
520 * server tree. It is slow, we don't use it for much else.
524 bool stillchildren = true;
525 while (stillchildren)
527 stillchildren = false;
528 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
530 TreeServer* s = (TreeServer*)*a;
534 stillchildren = true;
543 /* We'd better tidy up after ourselves, eh? */
544 this->DelHashEntry();
548 /** Yay for fast searches!
549 * This is hundreds of times faster than recursion
550 * or even scanning a linked list, especially when
551 * there are more than a few servers to deal with.
554 TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
556 server_hash::iterator iter;
557 iter = serverlist.find(ServerName.c_str());
558 if (iter != serverlist.end())
568 /** Returns the locally connected server we must route a
569 * message through to reach server 'ServerName'. This
570 * only applies to one-to-one and not one-to-many routing.
571 * See the comments for the constructor of TreeServer
574 TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
576 if (ServerName.c_str() == TreeRoot->GetName())
578 TreeServer* Found = FindServer(ServerName);
581 return Found->GetRoute();
589 /** Find the first server matching a given glob mask.
590 * Theres no find-using-glob method of hash_map [awwww :-(]
591 * so instead, we iterate over the list using an iterator
592 * and match each one until we get a hit. Yes its slow,
595 TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
597 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
599 if (match(i->first.c_str(),ServerName.c_str()))
605 /* A convenient wrapper that returns true if a server exists */
606 bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
608 return (FindServer(ServerName) != NULL);
614 class cmd_rconnect : public command_t
617 SpanningTreeUtilities* Utils;
619 cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
621 this->source = "m_spanningtree.so";
622 syntax = "<remote-server-mask> <servermask>";
625 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
627 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
628 /* Is this aimed at our server? */
629 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
631 /* Yes, initiate the given connect */
632 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
634 para[0] = parameters[1];
635 std::string original_command = std::string("CONNECT ") + parameters[1];
636 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
647 /** Every SERVER connection inbound or outbound is represented by
648 * an object of type TreeSocket.
649 * TreeSockets, being inherited from InspSocket, can be tied into
650 * the core socket engine, and we cn therefore receive activity events
651 * for them, just like activex objects on speed. (yes really, that
652 * is a technical term!) Each of these which relates to a locally
653 * connected server is assocated with it, by hooking it onto a
654 * TreeSocket class using its constructor. In this way, we can
655 * maintain a list of servers, some of which are directly connected,
656 * some of which are not.
658 class TreeSocket : public InspSocket
660 SpanningTreeUtilities* Utils;
662 std::string in_buffer;
663 ServerState LinkState;
664 std::string InboundServerName;
665 std::string InboundDescription;
667 int num_lost_servers;
669 bool LastPingWasGood;
671 unsigned int keylength;
672 std::string ModuleList;
673 std::map<std::string,std::string> CapKeys;
678 /** Because most of the I/O gubbins are encapsulated within
679 * InspSocket, we just call the superclass constructor for
680 * most of the action, and append a few of our own values
683 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod = NULL)
684 : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
687 this->LinkState = LISTENER;
689 Instance->Log(DEBUG, "HOOK = %08x", Hook);
691 if (listening && Hook)
692 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
695 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod = NULL)
696 : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
699 this->LinkState = CONNECTING;
702 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
705 /** When a listening socket gives us a new file descriptor,
706 * we must associate it with a socket without creating a new
707 * connection. This constructor is used for this purpose.
709 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod = NULL)
710 : InspSocket(SI, newfd, ip), Utils(Util), Hook(HookMod)
712 this->LinkState = WAIT_AUTH_1;
714 /* If we have a transport module hooked to the parent, hook the same module to this
715 * socket, and set a timer waiting for handshake before we send CAPAB etc.
719 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
720 Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils));
724 /* Otherwise, theres no lower layer transport in plain TCP/IP,
725 * so just send the capabilities right now.
727 this->SendCapabilities();
731 ServerState GetLinkState()
733 return this->LinkState;
744 InspSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
747 /** When an outbound connection finishes connecting, we receive
748 * this event, and must send our SERVER string to the other
749 * side. If the other side is happy, as outlined in the server
750 * to server docs on the inspircd.org site, the other side
751 * will then send back its own server string.
753 virtual bool OnConnected()
755 if (this->LinkState == CONNECTING)
757 /* we do not need to change state here. */
758 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
760 if (x->Name == this->myhost)
762 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
766 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
767 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+x->Hook+"\2");
770 this->SendCapabilities();
772 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
774 Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(*x), this->Utils));
776 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
782 /* There is a (remote) chance that between the /CONNECT and the connection
783 * being accepted, some muppet has removed the <link> block and rehashed.
784 * If that happens the connection hangs here until it's closed. Unlikely
785 * and rather harmless.
787 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
791 virtual void OnError(InspSocketError e)
793 /* We don't handle this method, because all our
794 * dirty work is done in OnClose() (see below)
795 * which is still called on error conditions too.
797 if (e == I_ERR_CONNECT)
799 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
800 Link* MyLink = Utils->FindLink(myhost);
802 Utils->DoFailOver(MyLink);
806 virtual int OnDisconnect()
808 /* For the same reason as above, we don't
809 * handle OnDisconnect()
814 /** Recursively send the server tree with distances as hops.
815 * This is used during network burst to inform the other server
816 * (and any of ITS servers too) of what servers we know about.
817 * If at any point any of these servers already exist on the other
818 * end, our connection may be terminated. The hopcounts given
819 * by this function are relative, this doesn't matter so long as
820 * they are all >1, as all the remote servers re-calculate them
821 * to be relative too, with themselves as hop 0.
823 void SendServers(TreeServer* Current, TreeServer* s, int hops)
826 for (unsigned int q = 0; q < Current->ChildCount(); q++)
828 TreeServer* recursive_server = Current->GetChild(q);
829 if (recursive_server != s)
831 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
832 this->WriteLine(command);
833 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
834 /* down to next level */
835 this->SendServers(recursive_server, s, hops+1);
840 std::string MyCapabilities()
842 std::vector<std::string> modlist;
843 std::string capabilities = "";
845 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
847 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
848 modlist.push_back(this->Instance->Config->module_names[i]);
850 sort(modlist.begin(),modlist.end());
851 for (unsigned int i = 0; i < modlist.size(); i++)
854 capabilities = capabilities + ",";
855 capabilities = capabilities + modlist[i];
860 void SendCapabilities()
862 irc::commasepstream modulelist(MyCapabilities());
864 this->WriteLine("CAPAB START");
866 /* Send module names, split at 509 length */
867 std::string item = "*";
868 std::string line = "CAPAB MODULES ";
869 while ((item = modulelist.GetToken()) != "")
871 if (line.length() + item.length() + 1 > 509)
873 this->WriteLine(line);
874 line = "CAPAB MODULES ";
877 if (line != "CAPAB MODULES ")
882 if (line != "CAPAB MODULES ")
883 this->WriteLine(line);
890 #ifdef SUPPORT_IP6LINKS
893 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));
895 this->WriteLine("CAPAB END");
898 /* Check a comma seperated list for an item */
899 bool HasItem(const std::string &list, const std::string &item)
901 irc::commasepstream seplist(list);
903 std::string item2 = "*";
904 while ((item2 = seplist.GetToken()) != "")
913 /* Isolate and return the elements that are different between two comma seperated lists */
914 std::string ListDifference(const std::string &one, const std::string &two)
916 irc::commasepstream list_one(one);
917 std::string item = "*";
918 std::string result = "";
919 while ((item = list_one.GetToken()) != "")
921 if (!HasItem(two, item))
930 bool Capab(const std::deque<std::string> ¶ms)
932 if (params.size() < 1)
934 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
938 if (params[0] == "START")
940 this->ModuleList = "";
941 this->CapKeys.clear();
943 else if (params[0] == "END")
945 std::string reason = "";
947 #ifdef SUPPORT_IP6LINKS
950 /* Compare ModuleList and check CapKeys...
951 * Maybe this could be tidier? -- Brain
953 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
955 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
958 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
962 diff = "this server:" + diff;
964 if (diff.length() == 12)
965 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
967 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
970 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
971 reason = "We don't both support linking to IPV6 servers";
973 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
974 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
976 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
977 reason = "Maximum nickname lengths differ or remote nickname length not specified";
979 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
981 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
983 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
987 reason = "Protocol version not specified";
991 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))))
992 reason = "We don't both have halfop support enabled/disabled identically";
994 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
995 reason = "Maximum ident lengths differ or remote ident length not specified";
997 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
998 reason = "Maximum channel lengths differ or remote channel length not specified";
1000 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
1001 reason = "Maximum modes per line differ or remote modes per line not specified";
1003 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
1004 reason = "Maximum quit lengths differ or remote quit length not specified";
1006 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
1007 reason = "Maximum topic lengths differ or remote topic length not specified";
1009 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
1010 reason = "Maximum kick lengths differ or remote kick length not specified";
1012 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
1013 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
1015 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
1016 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
1018 if (reason.length())
1020 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
1024 else if ((params[0] == "MODULES") && (params.size() == 2))
1026 if (!this->ModuleList.length())
1028 this->ModuleList.append(params[1]);
1032 this->ModuleList.append(",");
1033 this->ModuleList.append(params[1]);
1036 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1038 irc::tokenstream capabs(params[1]);
1039 std::string item = "*";
1040 while ((item = capabs.GetToken()) != "")
1042 /* Process each key/value pair */
1043 std::string::size_type equals = item.rfind('=');
1044 if (equals != std::string::npos)
1046 std::string var = item.substr(0, equals);
1047 std::string value = item.substr(equals+1, item.length());
1048 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1049 CapKeys[var] = value;
1057 /** This function forces this server to quit, removing this server
1058 * and any users on it (and servers and users below that, etc etc).
1059 * It's very slow and pretty clunky, but luckily unless your network
1060 * is having a REAL bad hair day, this function shouldnt be called
1061 * too many times a month ;-)
1063 void SquitServer(std::string &from, TreeServer* Current)
1065 /* recursively squit the servers attached to 'Current'.
1066 * We're going backwards so we don't remove users
1067 * while we still need them ;)
1069 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1071 TreeServer* recursive_server = Current->GetChild(q);
1072 this->SquitServer(from,recursive_server);
1074 /* Now we've whacked the kids, whack self */
1076 num_lost_users += Current->QuitUsers(from);
1079 /** This is a wrapper function for SquitServer above, which
1080 * does some validation first and passes on the SQUIT to all
1081 * other remaining servers.
1083 void Squit(TreeServer* Current, const std::string &reason)
1085 if ((Current) && (Current != Utils->TreeRoot))
1087 Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
1088 rmode.Send(Instance);
1090 std::deque<std::string> params;
1091 params.push_back(Current->GetName());
1092 params.push_back(":"+reason);
1093 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1094 if (Current->GetParent() == Utils->TreeRoot)
1096 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1100 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1102 num_lost_servers = 0;
1104 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1105 SquitServer(from, Current);
1107 Current->GetParent()->DelChild(Current);
1109 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1113 Instance->Log(DEFAULT,"Squit from unknown server");
1117 /** FMODE command - server mode with timestamp checks */
1118 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1120 /* Chances are this is a 1.0 FMODE without TS */
1121 if (params.size() < 3)
1123 /* No modes were in the command, probably a channel with no modes set on it */
1128 std::string sourceserv;
1130 /* Are we dealing with an FMODE from a user, or from a server? */
1131 userrec* who = this->Instance->FindNick(source);
1134 /* FMODE from a user, set sourceserv to the users server name */
1135 sourceserv = who->server;
1139 /* FMODE from a server, create a fake user to receive mode feedback */
1140 who = new userrec(this->Instance);
1141 who->SetFd(FD_MAGIC_NUMBER);
1142 smode = true; /* Setting this flag tells us we should free the userrec later */
1143 sourceserv = source; /* Set sourceserv to the actual source string */
1145 const char* modelist[64];
1148 memset(&modelist,0,sizeof(modelist));
1149 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1153 /* The timestamp is in this position.
1154 * We don't want to pass that up to the
1155 * server->client protocol!
1157 TS = atoi(params[q].c_str());
1161 /* Everything else is fine to append to the modelist */
1162 modelist[n++] = params[q].c_str();
1166 /* Extract the TS value of the object, either userrec or chanrec */
1167 userrec* dst = this->Instance->FindNick(params[0]);
1168 chanrec* chan = NULL;
1176 chan = this->Instance->FindChan(params[0]);
1182 /* Oops, channel doesnt exist! */
1186 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1191 Instance->Log(DEBUG,"Entering TS equality check");
1192 ModeHandler* mh = NULL;
1193 unsigned long paramptr = 3;
1194 std::string to_bounce = "";
1195 std::string to_keep = "";
1196 std::vector<std::string> params_to_keep;
1197 std::string params_to_bounce = "";
1199 char cur_change = 1;
1200 char old_change = 0;
1201 char old_bounce_change = 0;
1202 /* Merge modes, basically do special stuff to mode with params */
1203 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1216 /* We only care about whats being set,
1217 * not whats being unset
1219 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1221 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1223 /* We only want to do special things to
1224 * modes with parameters, we are going to rewrite
1228 adding ? cur_change = '+' : cur_change = '-';
1230 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1232 /* The mode is set here, check which we should keep */
1235 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1237 if (which_to_keep == true)
1239 /* Keep ours, bounce theirs:
1240 * Send back ours to them and
1241 * drop their mode changs
1243 adding ? cur_change = '+' : cur_change = '-';
1244 if (cur_change != old_bounce_change)
1245 to_bounce += cur_change;
1247 old_bounce_change = cur_change;
1249 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1250 params_to_bounce.append(" ").append(ret.second);
1254 /* Keep theirs: Accept their mode change,
1257 adding ? cur_change = '+' : cur_change = '-';
1258 if (cur_change != old_change)
1259 to_keep += cur_change;
1261 old_change = cur_change;
1263 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1264 params_to_keep.push_back(params[paramptr]);
1269 /* Mode isnt set here, we want it */
1270 adding ? cur_change = '+' : cur_change = '-';
1271 if (cur_change != old_change)
1272 to_keep += cur_change;
1274 old_change = cur_change;
1276 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1277 params_to_keep.push_back(params[paramptr]);
1284 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1288 adding ? cur_change = '+' : cur_change = '-';
1290 /* Just keep this, safe to merge with no checks
1291 * it has no parameters
1294 if (cur_change != old_change)
1295 to_keep += cur_change;
1297 old_change = cur_change;
1299 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1301 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1302 params_to_keep.push_back(params[paramptr++]);
1309 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1313 /* Taking a mode away */
1314 adding ? cur_change = '+' : cur_change = '-';
1316 if (cur_change != old_change)
1317 to_keep += cur_change;
1319 old_change = cur_change;
1321 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1322 params_to_keep.push_back(params[paramptr++]);
1329 if (to_bounce.length())
1331 std::deque<std::string> newparams;
1332 newparams.push_back(params[0]);
1333 newparams.push_back(ConvToStr(ourTS));
1334 newparams.push_back(to_bounce+params_to_bounce);
1335 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1336 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1339 if (to_keep.length())
1343 modelist[0] = params[0].c_str();
1344 modelist[1] = to_keep.c_str();
1346 if (params_to_keep.size() > 0)
1348 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1350 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1351 modelist[n++] = params_to_keep[q].c_str();
1357 Instance->Log(DEBUG,"Send mode");
1358 this->Instance->SendMode(modelist, n, who);
1362 Instance->Log(DEBUG,"Send mode client");
1363 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1366 /* HOT POTATO! PASS IT ON! */
1367 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1371 /* U-lined servers always win regardless of their TS */
1372 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1374 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1375 * SHOULD accept it, if its clock is right.
1377 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1378 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1379 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1381 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1382 * writing the code. It took me a while to come up with this solution.
1384 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1387 std::deque<std::string> newparams; /* New parameter list we send back */
1388 newparams.push_back(params[0]); /* Target, user or channel */
1389 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1390 newparams.push_back(""); /* This contains the mode string. For now
1391 * it's empty, we fill it below.
1394 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1395 * set to avoid a desync here.
1397 std::string modebounce = "";
1400 ModeHandler* mh = NULL;
1401 char cur_change = 1;
1402 char old_change = 0;
1403 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1405 /* Iterate over all mode chars in the sent set */
1408 /* Adding or subtracting modes? */
1416 /* Find the mode handler for this mode */
1417 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1419 /* Got a mode handler?
1420 * This also prevents us bouncing modes we have no handler for.
1427 /* Does the mode require a parameter right now?
1428 * If it does, fetch it if we can
1430 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1433 /* Call the ModeSet method to determine if its set with the
1434 * given parameter here or not.
1436 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1438 /* XXX: Really. Dont ask.
1439 * Determine from if its set combined with what the current
1440 * 'state' is (adding or not) as to wether we should 'invert'
1441 * or 'reinforce' the mode change
1443 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1445 /* Quickly determine if we have 'flipped' from + to -,
1446 * or - to +, to prevent unneccessary +/- chars in the
1447 * output string that waste bandwidth
1449 if (cur_change != old_change)
1450 modebounce += cur_change;
1451 old_change = cur_change;
1453 /* Add the mode character to the output string */
1454 modebounce += mh->GetModeChar();
1456 /* We got a parameter back from ModeHandler::ModeSet,
1457 * are we supposed to be sending one out right now?
1459 if (ret.second.length())
1461 if (mh->GetNumParams(cur_change == '+') > 0)
1462 /* Yes we're supposed to be sending out
1463 * the parameter. Make sure it goes
1465 newparams.push_back(ret.second);
1473 /* Update the parameters for FMODE with the new 'bounced' string */
1474 newparams[2] = modebounce;
1475 /* Only send it back the way it came, no need to send it anywhere else */
1476 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1477 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1481 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1482 /* The server was ulined, but something iffy is up with the TS.
1483 * Sound the alarm bells!
1485 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1487 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());
1489 /* Allow the mode, route it to either server or user command handling */
1491 this->Instance->SendMode(modelist,n,who);
1493 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1495 /* HOT POTATO! PASS IT ON! */
1496 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1498 /* Are we supposed to free the userrec? */
1505 /** FTOPIC command */
1506 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1508 if (params.size() != 4)
1510 time_t ts = atoi(params[1].c_str());
1511 std::string nsource = source;
1513 chanrec* c = this->Instance->FindChan(params[0]);
1516 if ((ts >= c->topicset) || (!*c->topic))
1518 std::string oldtopic = c->topic;
1519 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1520 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1522 /* if the topic text is the same as the current topic,
1523 * dont bother to send the TOPIC command out, just silently
1524 * update the set time and set nick.
1526 if (oldtopic != params[3])
1528 userrec* user = this->Instance->FindNick(source);
1531 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1535 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1536 nsource = user->server;
1538 /* all done, send it on its way */
1539 params[3] = ":" + params[3];
1540 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1549 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1550 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1552 /* 1.1 FJOIN works as follows:
1554 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1555 * timestamp 'wins'. From this point on we will refer to this side as the
1556 * winner. The side with the higher timestamp loses, from this point on we
1557 * will call this side the loser or losing side. This should be familiar to
1558 * anyone who's dealt with dreamforge or TS6 before.
1560 * When two sides of a split heal and this occurs, the following things
1563 * If the timestamps are exactly equal, both sides merge their privilages
1564 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1565 * re-created during a split, this is safe to do.
1568 * If the timestamps are NOT equal, the losing side removes all privilage
1569 * modes from all of its users that currently exist in the channel, before
1570 * introducing new users into the channel which are listed in the FJOIN
1571 * command's parameters. This means, all modes +ohv, and privilages added
1572 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1573 * of the channel to match that of the winning side, and the modes of the
1574 * users of the winning side are merged in with the losing side. The loser
1575 * then sends out a set of FMODE commands which 'confirm' that it just
1576 * removed all privilage modes from its existing users, which allows for
1577 * services packages to still work correctly without needing to know the
1578 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1579 * a problem, and services packages must contain code which explicitly
1580 * behaves as TS6 does, removing ops from the losing side of a split where
1581 * neccessary within its internal records, as this state information is
1582 * not explicitly echoed out in that protocol.
1584 * The winning side on the other hand will ignore all user modes from the
1585 * losing side, so only its own modes get applied. Life is simple for those
1586 * who succeed at internets. :-)
1588 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1589 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1590 * you ask? Well, quite simply because we don't need to. They'll be sent
1591 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1592 * the losing side sends any modes for the channel which shouldnt win,
1593 * they wont as their timestamp will be too high :-)
1596 if (params.size() < 3)
1599 char first[MAXBUF]; /* The first parameter of the mode command */
1600 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1601 char* mode_users[127]; /* The values used by the mode command */
1602 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1603 mode_users[0] = first; /* Set this up to be our on-stack value */
1604 mode_users[1] = modestring; /* Same here as above */
1605 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1606 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1608 userrec* who = NULL; /* User we are currently checking */
1609 std::string channel = params[0]; /* Channel name, as a string */
1610 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1611 bool created = false;
1613 /* Try and find the channel */
1614 chanrec* chan = this->Instance->FindChan(channel);
1616 /* Initialize channel name in the mode parameters */
1617 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1619 /* default TS is a high value, which if we dont have this
1620 * channel will let the other side apply their modes.
1622 time_t ourTS = Instance->Time(true)+600;
1624 /* Does this channel exist? if it does, get its REAL timestamp */
1628 created = true; /* don't perform deops, and set TS to correct time after processing. */
1630 /* Check if there are any local users on this channel. If there are not, set created = true.
1631 * If there are no local users here, theres no need for us to bounce the modes, we leave this
1632 * to servers which do have local users and save some bandwidth and prevent spurious deops
1637 TreeServerList list;
1638 Utils->GetListOfServersForChannel(chan, list, 0, elist);
1639 if (list.find(Utils->TreeRoot) == list.end())
1644 /* In 1.1, if they have the newer channel, we immediately clear
1645 * all status modes from our users. We then accept their modes.
1646 * If WE have the newer channel its the other side's job to do this.
1647 * Note that this causes the losing server to send out confirming
1652 std::deque<std::string> param_list;
1654 /* Lower the TS here */
1655 if (Utils->AnnounceTSChange && chan)
1656 chan->WriteChannelWithServ(Instance->Config->ServerName,
1657 "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
1660 /* Zap all the privilage modes on our side, if the channel exists here */
1663 param_list.push_back(channel);
1664 this->RemoveStatus(Instance->Config->ServerName, param_list);
1669 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1670 irc::tokenstream users(params[2]);
1671 std::string item = "*";
1673 /* do this first, so our mode reversals are correctly received by other servers
1674 * if there is a TS collision.
1676 params[2] = ":" + params[2];
1677 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1679 /* Now, process every 'prefixes,nick' pair */
1682 /* Find next user */
1683 item = users.GetToken();
1685 const char* usr = item.c_str();
1687 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1688 * (is this even possible?) */
1691 const char* permissions = usr;
1693 char* nm = new char[MAXBUF];
1696 /* Iterate through all the prefix values, convert them from prefixes
1697 * to mode letters, and append them to the mode sequence
1699 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1701 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1704 /* This is a valid prefix */
1706 *tnm++ = mh->GetModeChar();
1710 /* Not a valid prefix...
1711 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1713 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1714 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1721 /* Null terminate modes */
1723 /* Advance past the comma, to the nick */
1726 /* Check the user actually exists */
1727 who = this->Instance->FindNick(usr);
1730 /* Did they get any modes? How many times? */
1731 strlcat(modestring, nm, MAXBUF);
1732 for (int k = 0; k < ntimes; k++)
1733 mode_users[modectr++] = strdup(usr);
1735 /* Free temporary buffer used for mode sequence */
1738 /* Check that the user's 'direction' is correct
1739 * based on the server sending the FJOIN. We must
1740 * check each nickname in turn, because the origin of
1741 * the FJOIN may be different to the origin of the nicks
1742 * in the command itself.
1744 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1745 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1747 /* Oh dear oh dear. */
1748 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1751 /* Finally, we can actually place the user into the channel.
1752 * We're sure its right. Final answer, phone a friend.
1754 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1756 /* Have we already queued up MAXMODES modes with parameters
1757 * (+qaohv) ready to be sent to the server?
1759 if (modectr >= (MAXMODES-1))
1761 /* Only actually give the users any status if we lost
1762 * the FJOIN or drew (equal timestamps).
1763 * It isn't actually possible for ourTS to be > TS here,
1764 * only possible to actually have ourTS == TS, or
1765 * ourTS < TS, because if we lost, we already lowered
1766 * our TS above before we entered this loop. We only
1767 * check >= as a safety measure, in case someone stuffed
1768 * up. If someone DID stuff up, it was most likely me.
1769 * Note: I do not like baseball bats in the face...
1773 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1774 this->Instance->SendMode((const char**)mode_users,modectr,who);
1776 /* Something stuffed up, and for some reason, the timestamp is
1777 * NOT lowered right now and should be. Lower it. Usually this
1778 * code won't be executed, doubtless someone will remove it some
1783 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1789 /* Reset all this back to defaults, and
1790 * free any ram we have left allocated.
1792 strcpy(mode_users[1],"+");
1793 for (unsigned int f = 2; f < modectr; f++)
1794 free(mode_users[f]);
1800 /* Remember to free this */
1802 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1803 * We don't try to process the nickname here (that WOULD cause a segfault because
1804 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1805 * in case somehow we're desynched, so that other users which might be able to see
1806 * the nickname get their fair chance to process it.
1808 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1814 /* there werent enough modes built up to flush it during FJOIN,
1815 * or, there are a number left over. flush them out.
1817 if ((modectr > 2) && (who) && (chan))
1821 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1822 this->Instance->SendMode((const char**)mode_users,modectr,who);
1823 /* Yet again, we can't actually get a true value here, if everything else
1824 * is working as it should.
1828 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1834 /* Free anything we have left to free */
1835 for (unsigned int f = 2; f < modectr; f++)
1836 free(mode_users[f]);
1839 /* if we newly created the channel, set it's TS properly. */
1842 /* find created channel .. */
1843 chan = this->Instance->FindChan(channel);
1845 /* w00t said this shouldnt be needed but it is.
1846 * This isnt strictly true, as chan can be NULL
1847 * if a nick collision has occured and therefore
1848 * the channel was never created.
1853 /* All done. That wasnt so bad was it, you can wipe
1854 * the sweat from your forehead now. :-)
1860 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1862 if (params.size() < 8)
1864 if (params.size() > 8)
1866 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1869 // NICK age nick host dhost ident +modes ip :gecos
1871 time_t age = atoi(params[0].c_str());
1873 /* This used to have a pretty craq'y loop doing the same thing,
1874 * now we just let the STL do the hard work (more efficiently)
1876 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1877 if (pos_after_plus != std::string::npos)
1878 params[5] = params[5].substr(pos_after_plus);
1880 const char* tempnick = params[1].c_str();
1881 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1883 user_hash::iterator iter = this->Instance->clientlist->find(tempnick);
1885 if (iter != this->Instance->clientlist->end())
1888 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);
1889 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1890 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1894 userrec* _new = new userrec(this->Instance);
1895 (*(this->Instance->clientlist))[tempnick] = _new;
1896 _new->SetFd(FD_MAGIC_NUMBER);
1897 strlcpy(_new->nick, tempnick,NICKMAX-1);
1898 strlcpy(_new->host, params[2].c_str(),63);
1899 strlcpy(_new->dhost, params[3].c_str(),63);
1900 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1901 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1902 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1903 _new->registered = REG_ALL;
1906 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1907 _new->modes[(*v)-65] = 1;
1909 #ifdef SUPPORT_IP6LINKS
1910 if (params[6].find_first_of(":") != std::string::npos)
1911 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1914 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1916 Instance->AddGlobalClone(_new);
1918 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1920 params[7] = ":" + params[7];
1921 Utils->DoOneToAllButSender(source,"NICK",params,source);
1923 // Increment the Source Servers User Count..
1924 TreeServer* SourceServer = Utils->FindServer(source);
1927 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1928 SourceServer->AddUserCount();
1931 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1936 /** Send one or more FJOINs for a channel of users.
1937 * If the length of a single line is more than 480-NICKMAX
1938 * in length, it is split over multiple lines.
1940 void SendFJoins(TreeServer* Current, chanrec* c)
1944 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1946 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1948 size_t dlen, curlen;
1949 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1951 char* ptr = list + dlen;
1953 CUList *ulist = c->GetUsers();
1954 std::string modes = "";
1955 std::string params = "";
1957 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1959 // The first parameter gets a : before it
1960 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1967 if (curlen > (480-NICKMAX))
1969 buffer.append(list).append("\r\n");
1971 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1979 buffer.append(list).append("\r\n");
1981 /* Sorry for the hax. Because newly created channels assume +nt,
1982 * if this channel doesnt have +nt, explicitly send -n and -t for the missing modes.
1984 bool inverted = false;
1985 if (!c->IsModeSet('n'))
1990 if (!c->IsModeSet('t'))
2000 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
2003 params.append(" ").append(b->data);
2005 if (params.length() >= MAXMODES)
2007 /* Wrap at MAXMODES */
2008 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");
2014 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
2016 /* Only send these if there are any */
2018 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);
2020 this->WriteLine(buffer);
2023 /** Send G, Q, Z and E lines */
2024 void SendXLines(TreeServer* Current)
2028 std::string n = this->Instance->Config->ServerName;
2029 const char* sn = n.c_str();
2031 /* Yes, these arent too nice looking, but they get the job done */
2032 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++)
2034 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);
2035 buffer.append(data);
2037 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++)
2039 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);
2040 buffer.append(data);
2042 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++)
2044 snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2045 buffer.append(data);
2047 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++)
2049 snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2050 buffer.append(data);
2052 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++)
2054 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);
2055 buffer.append(data);
2057 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++)
2059 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);
2060 buffer.append(data);
2062 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++)
2064 snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2065 buffer.append(data);
2067 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++)
2069 snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2070 buffer.append(data);
2073 if (!buffer.empty())
2074 this->WriteLine(buffer);
2077 /** Send channel modes and topics */
2078 void SendChannelModes(TreeServer* Current)
2081 std::deque<std::string> list;
2082 std::string n = this->Instance->Config->ServerName;
2083 const char* sn = n.c_str();
2084 for (chan_hash::iterator c = this->Instance->chanlist->begin(); c != this->Instance->chanlist->end(); c++)
2086 SendFJoins(Current, c->second);
2087 if (*c->second->topic)
2089 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2090 this->WriteLine(data);
2092 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2094 c->second->GetExtList(list);
2095 for (unsigned int j = 0; j < list.size(); j++)
2097 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2102 /** send all users and their oper state/modes */
2103 void SendUsers(TreeServer* Current)
2106 std::deque<std::string> list;
2107 std::string dataline;
2108 for (user_hash::iterator u = this->Instance->clientlist->begin(); u != this->Instance->clientlist->end(); u++)
2110 if (u->second->registered == REG_ALL)
2112 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);
2113 this->WriteLine(data);
2114 if (*u->second->oper)
2116 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2117 this->WriteLine(data);
2119 if (*u->second->awaymsg)
2121 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2122 this->WriteLine(data);
2124 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2126 u->second->GetExtList(list);
2127 for (unsigned int j = 0; j < list.size(); j++)
2129 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2135 /** This function is called when we want to send a netburst to a local
2136 * server. There is a set order we must do this, because for example
2137 * users require their servers to exist, and channels require their
2138 * users to exist. You get the idea.
2140 void DoBurst(TreeServer* s)
2142 std::string burst = "BURST "+ConvToStr(Instance->Time(true));
2143 std::string endburst = "ENDBURST";
2144 // Because by the end of the netburst, it could be gone!
2145 std::string name = s->GetName();
2146 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2147 this->WriteLine(burst);
2148 /* send our version string */
2149 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2150 /* Send server tree */
2151 this->SendServers(Utils->TreeRoot,s,1);
2152 /* Send users and their oper status */
2154 /* Send everything else (channel modes, xlines etc) */
2155 this->SendChannelModes(s);
2156 this->SendXLines(s);
2157 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2158 this->WriteLine(endburst);
2159 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2162 /** This function is called when we receive data from a remote
2163 * server. We buffer the data in a std::string (it doesnt stay
2164 * there for long), reading using InspSocket::Read() which can
2165 * read up to 16 kilobytes in one operation.
2167 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2168 * THE SOCKET OBJECT FOR US.
2170 virtual bool OnDataReady()
2172 char* data = this->Read();
2173 /* Check that the data read is a valid pointer and it has some content */
2176 this->in_buffer.append(data);
2177 /* While there is at least one new line in the buffer,
2178 * do something useful (we hope!) with it.
2180 while (in_buffer.find("\n") != std::string::npos)
2182 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2183 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2184 /* Use rfind here not find, as theres more
2185 * chance of the \r being near the end of the
2186 * string, not the start.
2188 if (ret.find("\r") != std::string::npos)
2189 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2190 /* Process this one, abort if it
2191 * didnt return true.
2193 if (!this->ProcessLine(ret))
2200 /* EAGAIN returns an empty but non-NULL string, so this
2201 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2203 return (data && !*data);
2206 int WriteLine(std::string line)
2208 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2209 line.append("\r\n");
2210 return this->Write(line);
2213 /* Handle ERROR command */
2214 bool Error(std::deque<std::string> ¶ms)
2216 if (params.size() < 1)
2218 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2219 /* we will return false to cause the socket to close. */
2223 /** remote MOTD. leet, huh? */
2224 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2226 if (params.size() > 0)
2228 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2230 /* It's for our server */
2231 string_list results;
2232 userrec* source = this->Instance->FindNick(prefix);
2236 std::deque<std::string> par;
2237 par.push_back(prefix);
2240 if (!Instance->Config->MOTD.size())
2242 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2243 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2247 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2248 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2250 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2252 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2253 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2256 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2257 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2263 userrec* source = this->Instance->FindNick(prefix);
2265 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2271 /** remote ADMIN. leet, huh? */
2272 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2274 if (params.size() > 0)
2276 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2278 /* It's for our server */
2279 string_list results;
2280 userrec* source = this->Instance->FindNick(prefix);
2284 std::deque<std::string> par;
2285 par.push_back(prefix);
2288 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2289 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2291 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2292 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2294 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2295 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2297 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2298 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2304 userrec* source = this->Instance->FindNick(prefix);
2306 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2312 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2314 /* Get the reply to a STATS query if it matches this servername,
2315 * and send it back as a load of PUSH queries
2317 if (params.size() > 1)
2319 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2321 /* It's for our server */
2322 string_list results;
2323 userrec* source = this->Instance->FindNick(prefix);
2326 std::deque<std::string> par;
2327 par.push_back(prefix);
2329 DoStats(this->Instance, *(params[0].c_str()), source, results);
2330 for (size_t i = 0; i < results.size(); i++)
2332 par[1] = "::" + results[i];
2333 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2340 userrec* source = this->Instance->FindNick(prefix);
2342 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2349 /** Because the core won't let users or even SERVERS set +o,
2350 * we use the OPERTYPE command to do this.
2352 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2354 if (params.size() != 1)
2356 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2359 std::string opertype = params[0];
2360 userrec* u = this->Instance->FindNick(prefix);
2363 u->modes[UM_OPERATOR] = 1;
2364 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2365 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2366 this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));
2372 /** Because Andy insists that services-compatible servers must
2373 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2375 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2377 if (params.size() < 3)
2380 userrec* u = this->Instance->FindNick(params[0]);
2384 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2387 std::deque<std::string> par;
2388 par.push_back(params[1]);
2389 /* This is not required as one is sent in OnUserPostNick below
2391 //Utils->DoOneToMany(u->nick,"NICK",par);
2392 if (!u->ForceNickChange(params[1].c_str()))
2394 userrec::QuitUser(this->Instance, u, "Nickname collision");
2397 u->age = atoi(params[2].c_str());
2404 * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
2405 * then let that server do the dirty work (squit it!). Example:
2406 * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
2408 bool RemoteSquit(const std::string &prefix, std::deque<std::string> ¶ms)
2410 /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
2411 if (params.size() < 2)
2414 TreeServer* s = Utils->FindServerMask(params[0]);
2418 if (s == Utils->TreeRoot)
2420 this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
2424 TreeSocket* sock = s->GetSocket();
2428 /* it's locally connected, KILL IT! */
2429 Instance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
2430 Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
2431 sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
2432 Instance->SE->DelFd(sock);
2438 /* route the rsquit */
2439 params[1] = ":" + params[1];
2440 Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
2445 /* mother fucker! it doesn't exist */
2451 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2453 if (params.size() < 2)
2456 userrec* u = this->Instance->FindNick(params[0]);
2460 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2461 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2466 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2468 if (params.size() < 1)
2471 std::string servermask = params[0];
2473 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2475 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2476 this->Instance->RehashServer();
2477 Utils->ReadConfiguration(false);
2478 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2480 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2484 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2486 if (params.size() != 2)
2489 std::string nick = params[0];
2490 userrec* u = this->Instance->FindNick(prefix);
2491 userrec* who = this->Instance->FindNick(nick);
2495 /* Prepend kill source, if we don't have one */
2496 std::string sourceserv = prefix;
2499 sourceserv = u->server;
2501 if (*(params[1].c_str()) != '[')
2503 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2505 std::string reason = params[1];
2506 params[1] = ":" + params[1];
2507 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2508 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2509 userrec::QuitUser(this->Instance,who,reason);
2514 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2516 if (params.size() < 1)
2519 if (params.size() == 1)
2521 TreeServer* ServerSource = Utils->FindServer(prefix);
2524 ServerSource->SetPingFlag();
2529 std::string forwardto = params[1];
2530 if (forwardto == this->Instance->Config->ServerName)
2533 * this is a PONG for us
2534 * if the prefix is a user, check theyre local, and if they are,
2535 * dump the PONG reply back to their fd. If its a server, do nowt.
2536 * Services might want to send these s->s, but we dont need to yet.
2538 userrec* u = this->Instance->FindNick(prefix);
2542 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2547 // not for us, pass it on :)
2548 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2555 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2557 if (params.size() < 3)
2560 TreeServer* ServerSource = Utils->FindServer(prefix);
2564 if (params[0] == "*")
2566 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2568 else if (*(params[0].c_str()) == '#')
2570 chanrec* c = this->Instance->FindChan(params[0]);
2573 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2576 else if (*(params[0].c_str()) != '#')
2578 userrec* u = this->Instance->FindNick(params[0]);
2581 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2586 params[2] = ":" + params[2];
2587 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2591 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2593 if (params.size() < 1)
2596 TreeServer* ServerSource = Utils->FindServer(prefix);
2600 ServerSource->SetVersion(params[0]);
2602 params[0] = ":" + params[0];
2603 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2607 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2609 if (params.size() < 1)
2612 userrec* u = this->Instance->FindNick(prefix);
2616 u->ChangeDisplayedHost(params[0].c_str());
2617 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2622 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2624 if (params.size() < 6)
2627 bool propogate = false;
2629 switch (*(params[0].c_str()))
2632 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2633 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2636 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2637 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2640 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2641 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2644 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2645 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2648 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2651 /* Just in case... */
2652 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2657 /* Send it on its way */
2660 if (atoi(params[4].c_str()))
2662 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());
2666 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());
2668 params[5] = ":" + params[5];
2669 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2671 if (!this->bursting)
2673 Instance->Log(DEBUG,"Applying lines...");
2674 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2679 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2681 if (params.size() < 1)
2684 userrec* u = this->Instance->FindNick(prefix);
2688 u->ChangeName(params[0].c_str());
2689 params[0] = ":" + params[0];
2690 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2695 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2697 if (params.size() < 1)
2700 Instance->Log(DEBUG,"In IDLE command");
2701 userrec* u = this->Instance->FindNick(prefix);
2705 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2706 // an incoming request
2707 if (params.size() == 1)
2709 userrec* x = this->Instance->FindNick(params[0]);
2710 if ((x) && (IS_LOCAL(x)))
2712 userrec* x = this->Instance->FindNick(params[0]);
2713 char signon[MAXBUF];
2716 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2717 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
2718 std::deque<std::string> par;
2719 par.push_back(prefix);
2720 par.push_back(signon);
2721 par.push_back(idle);
2722 // ours, we're done, pass it BACK
2723 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2727 // not ours pass it on
2728 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2731 else if (params.size() == 3)
2733 std::string who_did_the_whois = params[0];
2734 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2735 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2737 // an incoming reply to a whois we sent out
2738 std::string nick_whoised = prefix;
2739 unsigned long signon = atoi(params[1].c_str());
2740 unsigned long idle = atoi(params[2].c_str());
2741 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2742 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2746 // not ours, pass it on
2747 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2754 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2756 if (params.size() < 2)
2759 userrec* u = this->Instance->FindNick(params[0]);
2766 u->Write(params[1]);
2770 // continue the raw onwards
2771 params[1] = ":" + params[1];
2772 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2777 bool HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
2779 if (!params.size() || !Utils->EnableTimeSync)
2784 if ((params.size() == 2) && (params[1] == "FORCE"))
2787 time_t rts = atoi(params[0].c_str());
2788 time_t us = Instance->Time(true);
2792 Instance->Log(DEBUG, "Timestamp from %s is equal", prefix.c_str());
2794 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2796 else if (force || (rts < us))
2798 int old = Instance->SetTimeDelta(rts - us);
2799 Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
2801 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2805 Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
2807 std::deque<std::string> oparams;
2808 oparams.push_back(ConvToStr(us));
2810 Utils->DoOneToMany(prefix, "TIMESET", oparams);
2816 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2818 // :source.server TIME remote.server sendernick
2819 // :remote.server TIME source.server sendernick TS
2820 if (params.size() == 2)
2822 // someone querying our time?
2823 if (this->Instance->Config->ServerName == params[0])
2825 userrec* u = this->Instance->FindNick(params[1]);
2828 params.push_back(ConvToStr(Instance->Time(false)));
2830 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2835 // not us, pass it on
2836 userrec* u = this->Instance->FindNick(params[1]);
2838 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2841 else if (params.size() == 3)
2843 // a response to a previous TIME
2844 userrec* u = this->Instance->FindNick(params[1]);
2845 if ((u) && (IS_LOCAL(u)))
2847 time_t rawtime = atol(params[2].c_str());
2848 struct tm * timeinfo;
2849 timeinfo = localtime(&rawtime);
2851 snprintf(tms,26,"%s",asctime(timeinfo));
2853 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2858 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2864 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2866 if (params.size() < 1)
2869 if (params.size() == 1)
2871 std::string stufftobounce = params[0];
2872 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2877 std::string forwardto = params[1];
2878 if (forwardto == this->Instance->Config->ServerName)
2880 // this is a ping for us, send back PONG to the requesting server
2881 params[1] = params[0];
2882 params[0] = forwardto;
2883 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2887 // not for us, pass it on :)
2888 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2894 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2896 if (params.size() < 1)
2899 chanrec* c = Instance->FindChan(params[0]);
2903 irc::modestacker modestack(false);
2904 CUList *ulist = c->GetUsers();
2906 std::deque<std::string> stackresult;
2909 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2911 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2912 if (modesequence.length())
2914 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2915 irc::spacesepstream sep(modesequence);
2916 std::string modeletters = sep.GetToken();
2917 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2919 while (!modeletters.empty())
2921 char mletter = *(modeletters.begin());
2922 modestack.Push(mletter,sep.GetToken());
2923 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2924 modeletters.erase(modeletters.begin());
2925 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2930 while (modestack.GetStackedLine(stackresult))
2932 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2933 stackresult.push_front(ConvToStr(c->age));
2934 stackresult.push_front(c->name);
2935 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2936 stackresult.erase(stackresult.begin() + 1);
2937 Instance->Log(DEBUG,"Stacked items:");
2938 for (size_t z = 0; z < stackresult.size(); z++)
2940 y[z] = stackresult[z].c_str();
2941 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2943 userrec* n = new userrec(Instance);
2944 n->SetFd(FD_MAGIC_NUMBER);
2945 Instance->SendMode(y, stackresult.size(), n);
2952 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2954 if (params.size() < 4)
2957 std::string servername = params[0];
2958 std::string password = params[1];
2959 // hopcount is not used for a remote server, we calculate this ourselves
2960 std::string description = params[3];
2961 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2965 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2968 TreeServer* CheckDupe = Utils->FindServer(servername);
2971 this->WriteLine("ERROR :Server "+servername+" already exists!");
2972 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2975 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2976 ParentOfThis->AddChild(Node);
2977 params[3] = ":" + params[3];
2978 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2979 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2983 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2985 if (params.size() < 4)
2988 irc::string servername = params[0].c_str();
2989 std::string sname = params[0];
2990 std::string password = params[1];
2991 int hops = atoi(params[2].c_str());
2995 this->WriteLine("ERROR :Server too far away for authentication");
2996 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2999 std::string description = params[3];
3000 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3002 if ((x->Name == servername) && (x->RecvPass == password))
3004 TreeServer* CheckDupe = Utils->FindServer(sname);
3007 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
3008 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
3011 // Begin the sync here. this kickstarts the
3012 // other side, waiting in WAIT_AUTH_2 state,
3013 // into starting their burst, as it shows
3014 // that we're happy.
3015 this->LinkState = CONNECTED;
3016 // we should add the details of this server now
3017 // to the servers tree, as a child of the root
3019 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
3020 Utils->TreeRoot->AddChild(Node);
3021 params[3] = ":" + params[3];
3022 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
3023 this->bursting = true;
3024 this->DoBurst(Node);
3028 this->WriteLine("ERROR :Invalid credentials");
3029 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3033 bool Inbound_Server(std::deque<std::string> ¶ms)
3035 if (params.size() < 4)
3038 irc::string servername = params[0].c_str();
3039 std::string sname = params[0];
3040 std::string password = params[1];
3041 int hops = atoi(params[2].c_str());
3045 this->WriteLine("ERROR :Server too far away for authentication");
3046 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
3049 std::string description = params[3];
3050 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3052 if ((x->Name == servername) && (x->RecvPass == password))
3054 TreeServer* CheckDupe = Utils->FindServer(sname);
3057 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
3058 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
3061 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
3065 std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
3066 this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
3069 this->InboundServerName = sname;
3070 this->InboundDescription = description;
3071 // this is good. Send our details: Our server name and description and hopcount of 0,
3072 // along with the sendpass from this block.
3073 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
3074 // move to the next state, we are now waiting for THEM.
3075 this->LinkState = WAIT_AUTH_2;
3079 this->WriteLine("ERROR :Invalid credentials");
3080 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3084 void Split(const std::string &line, std::deque<std::string> &n)
3087 irc::tokenstream tokens(line);
3089 while ((param = tokens.GetToken()) != "")
3094 bool ProcessLine(std::string &line)
3096 std::deque<std::string> params;
3097 irc::string command;
3100 line = line.substr(0, line.find_first_of("\r\n"));
3105 Instance->Log(DEBUG,"IN: %s", line.c_str());
3107 this->Split(line.c_str(),params);
3109 if ((params[0][0] == ':') && (params.size() > 1))
3111 prefix = params[0].substr(1);
3115 command = params[0].c_str();
3118 switch (this->LinkState)
3123 // Waiting for SERVER command from remote server. Server initiating
3124 // the connection sends the first SERVER command, listening server
3125 // replies with theirs if its happy, then if the initiator is happy,
3126 // it starts to send its net sync, which starts the merge, otherwise
3127 // it sends an ERROR.
3128 if (command == "PASS")
3130 /* Silently ignored */
3132 else if (command == "SERVER")
3134 return this->Inbound_Server(params);
3136 else if (command == "ERROR")
3138 return this->Error(params);
3140 else if (command == "USER")
3142 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3145 else if (command == "CAPAB")
3147 return this->Capab(params);
3149 else if ((command == "U") || (command == "S"))
3151 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3156 std::string error("ERROR :Invalid command in negotiation phase: ");
3157 error.append(command.c_str());
3158 this->WriteLine(error);
3163 // Waiting for start of other side's netmerge to say they liked our
3165 if (command == "SERVER")
3167 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3171 else if ((command == "U") || (command == "S"))
3173 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3176 else if (command == "BURST")
3178 if (params.size() && Utils->EnableTimeSync)
3180 /* If a time stamp is provided, apply synchronization */
3182 time_t them = atoi(params[0].c_str());
3183 time_t us = Instance->Time(true);
3184 int delta = them - us;
3186 if ((params.size() == 2) && (params[1] == "FORCE"))
3189 if ((delta < -600) || (delta > 600))
3191 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));
3192 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3198 this->Instance->Log(DEBUG, "Timestamps are equal; pat yourself on the back");
3200 else if (force || (us > them))
3202 this->Instance->Log(DEBUG, "Remote server has lower TS (%d seconds)", them - us);
3203 this->Instance->SetTimeDelta(them - us);
3204 // Send this new timestamp to any other servers
3205 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
3209 // Override the timestamp
3210 this->Instance->Log(DEBUG, "We have a higher timestamp (by %d seconds), not updating delta", us - them);
3211 this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
3214 this->LinkState = CONNECTED;
3215 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3216 Utils->TreeRoot->AddChild(Node);
3218 params.push_back(InboundServerName);
3219 params.push_back("*");
3220 params.push_back("1");
3221 params.push_back(":"+InboundDescription);
3222 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3223 this->bursting = true;
3224 this->DoBurst(Node);
3226 else if (command == "ERROR")
3228 return this->Error(params);
3230 else if (command == "CAPAB")
3232 return this->Capab(params);
3237 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3241 if (command == "SERVER")
3243 // another server we connected to, which was in WAIT_AUTH_1 state,
3244 // has just sent us their credentials. If we get this far, theyre
3245 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3246 // if we're happy with this, we should send our netburst which
3247 // kickstarts the merge.
3248 return this->Outbound_Reply_Server(params);
3250 else if (command == "ERROR")
3252 return this->Error(params);
3256 // This is the 'authenticated' state, when all passwords
3257 // have been exchanged and anything past this point is taken
3262 std::string direction = prefix;
3263 userrec* t = this->Instance->FindNick(prefix);
3266 direction = t->server;
3268 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3269 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3271 if (route_back_again)
3272 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3277 * When there is activity on the socket, reset the ping counter so
3278 * that we're not wasting bandwidth pinging an active server.
3280 route_back_again->SetNextPingTime(time(NULL) + 60);
3281 route_back_again->SetPingFlag();
3284 if (command == "SVSMODE")
3286 /* Services expects us to implement
3287 * SVSMODE. In inspircd its the same as
3292 std::string target = "";
3293 /* Yes, know, this is a mess. Its reasonably fast though as we're
3294 * working with std::string here.
3296 if ((command == "NICK") && (params.size() > 1))
3298 return this->IntroduceClient(prefix,params);
3300 else if (command == "FJOIN")
3302 return this->ForceJoin(prefix,params);
3304 else if (command == "STATS")
3306 return this->Stats(prefix, params);
3308 else if (command == "MOTD")
3310 return this->Motd(prefix, params);
3312 else if (command == "ADMIN")
3314 return this->Admin(prefix, params);
3316 else if (command == "SERVER")
3318 return this->RemoteServer(prefix,params);
3320 else if (command == "ERROR")
3322 return this->Error(params);
3324 else if (command == "OPERTYPE")
3326 return this->OperType(prefix,params);
3328 else if (command == "FMODE")
3330 return this->ForceMode(prefix,params);
3332 else if (command == "KILL")
3334 return this->RemoteKill(prefix,params);
3336 else if (command == "FTOPIC")
3338 return this->ForceTopic(prefix,params);
3340 else if (command == "REHASH")
3342 return this->RemoteRehash(prefix,params);
3344 else if (command == "METADATA")
3346 return this->MetaData(prefix,params);
3348 else if (command == "REMSTATUS")
3350 return this->RemoveStatus(prefix,params);
3352 else if (command == "PING")
3355 * We just got a ping from a server that's bursting.
3356 * This can't be right, so set them to not bursting, and
3357 * apply their lines.
3361 this->bursting = false;
3362 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3366 prefix = this->GetName();
3368 return this->LocalPing(prefix,params);
3370 else if (command == "PONG")
3373 * We just got a pong from a server that's bursting.
3374 * This can't be right, so set them to not bursting, and
3375 * apply their lines.
3379 this->bursting = false;
3380 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3384 prefix = this->GetName();
3386 return this->LocalPong(prefix,params);
3388 else if (command == "VERSION")
3390 return this->ServerVersion(prefix,params);
3392 else if (command == "FHOST")
3394 return this->ChangeHost(prefix,params);
3396 else if (command == "FNAME")
3398 return this->ChangeName(prefix,params);
3400 else if (command == "ADDLINE")
3402 return this->AddLine(prefix,params);
3404 else if (command == "SVSNICK")
3408 prefix = this->GetName();
3410 return this->ForceNick(prefix,params);
3412 else if (command == "RSQUIT")
3414 return this->RemoteSquit(prefix, params);
3416 else if (command == "IDLE")
3418 return this->Whois(prefix,params);
3420 else if (command == "PUSH")
3422 return this->Push(prefix,params);
3424 else if (command == "TIMESET")
3426 return this->HandleSetTime(prefix, params);
3428 else if (command == "TIME")
3430 return this->Time(prefix,params);
3432 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3434 std::string sourceserv = this->myhost;
3435 if (params.size() == 3)
3437 userrec* user = this->Instance->FindNick(params[1]);
3438 chanrec* chan = this->Instance->FindChan(params[0]);
3441 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3442 /* Yikes, the channels gone! */
3446 if (this->InboundServerName != "")
3448 sourceserv = this->InboundServerName;
3450 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3452 else if (command == "SVSJOIN")
3456 prefix = this->GetName();
3458 return this->ServiceJoin(prefix,params);
3460 else if (command == "SQUIT")
3462 if (params.size() == 2)
3464 this->Squit(Utils->FindServer(params[0]),params[1]);
3468 else if (command == "OPERNOTICE")
3470 std::string sourceserv = this->myhost;
3472 if (this->InboundServerName != "")
3473 sourceserv = this->InboundServerName;
3475 if (params.size() >= 1)
3476 Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
3478 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3480 else if (command == "MODENOTICE")
3482 std::string sourceserv = this->myhost;
3483 if (this->InboundServerName != "")
3484 sourceserv = this->InboundServerName;
3485 if (params.size() >= 2)
3487 Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
3490 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3492 else if (command == "SNONOTICE")
3494 std::string sourceserv = this->myhost;
3495 if (this->InboundServerName != "")
3496 sourceserv = this->InboundServerName;
3497 if (params.size() >= 2)
3499 Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
3502 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3504 else if (command == "ENDBURST")
3506 this->bursting = false;
3507 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3508 std::string sourceserv = this->myhost;
3509 if (this->InboundServerName != "")
3511 sourceserv = this->InboundServerName;
3513 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3515 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
3516 rmode.Send(Instance);
3522 // not a special inter-server command.
3523 // Emulate the actual user doing the command,
3524 // this saves us having a huge ugly parser.
3525 userrec* who = this->Instance->FindNick(prefix);
3526 std::string sourceserv = this->myhost;
3527 if (this->InboundServerName != "")
3529 sourceserv = this->InboundServerName;
3531 if ((!who) && (command == "MODE"))
3533 if (Utils->IsServer(prefix))
3535 const char* modelist[127];
3536 for (size_t i = 0; i < params.size(); i++)
3537 modelist[i] = params[i].c_str();
3539 userrec* fake = new userrec(Instance);
3540 fake->SetFd(FD_MAGIC_NUMBER);
3542 this->Instance->SendMode(modelist, params.size(), fake);
3546 /* Hot potato! pass it on! */
3547 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3552 if ((command == "NICK") && (params.size() > 0))
3554 /* On nick messages, check that the nick doesnt
3555 * already exist here. If it does, kill their copy,
3558 userrec* x = this->Instance->FindNick(params[0]);
3559 if ((x) && (x != who))
3561 std::deque<std::string> p;
3562 p.push_back(params[0]);
3563 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3564 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3566 p.push_back(prefix);
3567 p.push_back("Nickname collision");
3568 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3569 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3570 userrec* y = this->Instance->FindNick(prefix);
3573 userrec::QuitUser(this->Instance,y,"Nickname collision");
3575 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3579 target = who->server;
3580 const char* strparams[127];
3581 for (unsigned int q = 0; q < params.size(); q++)
3583 strparams[q] = params[q].c_str();
3585 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3588 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3595 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3601 // its not a user. Its either a server, or somethings screwed up.
3602 if (Utils->IsServer(prefix))
3604 target = this->Instance->Config->ServerName;
3608 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3612 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3621 virtual std::string GetName()
3623 std::string sourceserv = this->myhost;
3624 if (this->InboundServerName != "")
3626 sourceserv = this->InboundServerName;
3631 virtual void OnTimeout()
3633 if (this->LinkState == CONNECTING)
3635 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3636 Link* MyLink = Utils->FindLink(myhost);
3638 Utils->DoFailOver(MyLink);
3642 virtual void OnClose()
3644 // Connection closed.
3645 // If the connection is fully up (state CONNECTED)
3646 // then propogate a netsplit to all peers.
3647 std::string quitserver = this->myhost;
3648 if (this->InboundServerName != "")
3650 quitserver = this->InboundServerName;
3652 TreeServer* s = Utils->FindServer(quitserver);
3655 Squit(s,"Remote host closed the connection");
3658 if (quitserver != "")
3659 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3662 virtual int OnIncomingConnection(int newsock, char* ip)
3664 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3665 * or discovering if this port is the server port, we don't allow connections from any
3666 * IPs for which we don't have a link block.
3670 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3673 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3674 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3679 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3685 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
3687 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3692 /** This class is used to resolve server hostnames during /connect and autoconnect.
3693 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3694 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3695 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3696 * will have an IP address which we can then use to continue our connection.
3698 class ServernameResolver : public Resolver
3701 /** A copy of the Link tag info for what we're connecting to.
3702 * We take a copy, rather than using a pointer, just in case the
3703 * admin takes the tag away and rehashes while the domain is resolving.
3706 SpanningTreeUtilities* Utils;
3708 ServernameResolver(Module* me, SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(Util)
3710 /* Nothing in here, folks */
3713 void OnLookupComplete(const std::string &result)
3715 /* Initiate the connection, now that we have an IP to use.
3716 * Passing a hostname directly to InspSocket causes it to
3717 * just bail and set its FD to -1.
3719 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3720 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3723 if ((!MyLink.Hook.empty()) && (Utils->hooks.find(MyLink.Hook.c_str()) == Utils->hooks.end()))
3726 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str(),
3727 MyLink.Hook.empty() ? NULL : Utils->hooks[MyLink.Hook.c_str()]);
3728 if (newsocket->GetFd() > -1)
3734 /* Something barfed, show the opers */
3735 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3737 Utils->DoFailOver(&MyLink);
3742 void OnError(ResolverError e, const std::string &errormessage)
3745 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3746 Utils->DoFailOver(&MyLink);
3750 /** Handle resolving of server IPs for the cache
3752 class SecurityIPResolver : public Resolver
3756 SpanningTreeUtilities* Utils;
3758 SecurityIPResolver(Module* me, SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(U)
3762 void OnLookupComplete(const std::string &result)
3764 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3765 Utils->ValidIPs.push_back(result);
3768 void OnError(ResolverError e, const std::string &errormessage)
3770 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3774 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3778 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3780 modulelist* ml = ServerInstance->FindInterface("InspSocketHook");
3782 /* Did we find any modules? */
3785 /* Yes, enumerate them all to find out the hook name */
3786 for (modulelist::iterator m = ml->begin(); m != ml->end(); m++)
3788 /* Make a request to it for its name, its implementing
3789 * InspSocketHook so we know its safe to do this
3791 std::string name = InspSocketNameRequest((Module*)Creator, *m).Send();
3792 /* Build a map of them */
3793 hooks[name.c_str()] = *m;
3794 hooknames.push_back(name);
3795 ServerInstance->Log(DEBUG, "Found InspSocketHook interface: '%s' -> '%08x'", name.c_str(), *m);
3799 this->ReadConfiguration(true);
3802 SpanningTreeUtilities::~SpanningTreeUtilities()
3804 for (unsigned int i = 0; i < Bindings.size(); i++)
3806 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3807 ServerInstance->SE->DelFd(Bindings[i]);
3808 Bindings[i]->Close();
3809 DELETE(Bindings[i]);
3811 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3812 while (TreeRoot->ChildCount())
3814 TreeServer* child_server = TreeRoot->GetChild(0);
3815 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3818 TreeSocket* sock = child_server->GetSocket();
3819 ServerInstance->SE->DelFd(sock);
3827 void SpanningTreeUtilities::AddThisServer(TreeServer* server, TreeServerList &list)
3829 if (list.find(server) == list.end())
3830 list[server] = server;
3833 /** returns a list of DIRECT servernames for a specific channel */
3834 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list)
3840 ulist = c->GetOppedUsers();
3843 ulist = c->GetHalfoppedUsers();
3846 ulist = c->GetVoicedUsers();
3849 ulist = c->GetUsers();
3852 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3854 if ((i->second->GetFd() < 0) && (exempt_list.find(i->second) == exempt_list.end()))
3856 TreeServer* best = this->BestRouteTo(i->second->server);
3858 AddThisServer(best,list);
3864 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3867 TreeServer* omitroute = this->BestRouteTo(omit);
3868 if ((command == "NOTICE") || (command == "PRIVMSG"))
3870 if (params.size() >= 2)
3873 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3876 params[0] = params[0].substr(1, params[0].length()-1);
3878 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3880 // special routing for private messages/notices
3881 userrec* d = ServerInstance->FindNick(params[0]);
3884 std::deque<std::string> par;
3885 par.push_back(params[0]);
3886 par.push_back(":"+params[1]);
3887 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3891 else if (*(params[0].c_str()) == '$')
3893 std::deque<std::string> par;
3894 par.push_back(params[0]);
3895 par.push_back(":"+params[1]);
3896 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3901 chanrec* c = ServerInstance->FindChan(params[0]);
3902 userrec* u = ServerInstance->FindNick(prefix);
3906 TreeServerList list;
3907 FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist));
3908 GetListOfServersForChannel(c,list,pfx,elist);
3910 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
3912 TreeSocket* Sock = i->second->GetSocket();
3913 if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second))
3915 Sock->WriteLine(data);
3923 unsigned int items =this->TreeRoot->ChildCount();
3924 for (unsigned int x = 0; x < items; x++)
3926 TreeServer* Route = this->TreeRoot->GetChild(x);
3927 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3929 TreeSocket* Sock = Route->GetSocket();
3931 Sock->WriteLine(data);
3937 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3939 TreeServer* omitroute = this->BestRouteTo(omit);
3940 std::string FullLine = ":" + prefix + " " + command;
3941 unsigned int words = params.size();
3942 for (unsigned int x = 0; x < words; x++)
3944 FullLine = FullLine + " " + params[x];
3946 unsigned int items = this->TreeRoot->ChildCount();
3947 for (unsigned int x = 0; x < items; x++)
3949 TreeServer* Route = this->TreeRoot->GetChild(x);
3950 // Send the line IF:
3951 // The route has a socket (its a direct connection)
3952 // The route isnt the one to be omitted
3953 // The route isnt the path to the one to be omitted
3954 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3956 TreeSocket* Sock = Route->GetSocket();
3958 Sock->WriteLine(FullLine);
3964 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3966 std::string FullLine = ":" + prefix + " " + command;
3967 unsigned int words = params.size();
3968 for (unsigned int x = 0; x < words; x++)
3970 FullLine = FullLine + " " + params[x];
3972 unsigned int items = this->TreeRoot->ChildCount();
3973 for (unsigned int x = 0; x < items; x++)
3975 TreeServer* Route = this->TreeRoot->GetChild(x);
3976 if (Route && Route->GetSocket())
3978 TreeSocket* Sock = Route->GetSocket();
3980 Sock->WriteLine(FullLine);
3986 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3988 std::string spfx = prefix;
3989 std::string scmd = command;
3990 return this->DoOneToMany(spfx, scmd, params);
3993 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3995 std::string spfx = prefix;
3996 std::string scmd = command;
3997 return this->DoOneToAllButSender(spfx, scmd, params, omit);
4000 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
4002 TreeServer* Route = this->BestRouteTo(target);
4005 std::string FullLine = ":" + prefix + " " + command;
4006 unsigned int words = params.size();
4007 for (unsigned int x = 0; x < words; x++)
4009 FullLine = FullLine + " " + params[x];
4011 if (Route && Route->GetSocket())
4013 TreeSocket* Sock = Route->GetSocket();
4015 Sock->WriteLine(FullLine);
4025 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
4027 ConfigReader* Conf = new ConfigReader(ServerInstance);
4030 for (int j =0; j < Conf->Enumerate("bind"); j++)
4032 std::string Type = Conf->ReadValue("bind","type",j);
4033 std::string IP = Conf->ReadValue("bind","address",j);
4034 std::string Port = Conf->ReadValue("bind","port",j);
4035 std::string transport = Conf->ReadValue("bind","transport",j);
4036 if (Type == "servers")
4038 irc::portparser portrange(Port, false);
4040 while ((portno = portrange.GetToken()))
4042 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), portno);
4046 if ((!transport.empty()) && (hooks.find(transport.c_str()) == hooks.end()))
4048 ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for port %s:%s - maybe you forgot to load it BEFORE m_spanningtree in your config file? - Skipping this port binding",
4049 transport.c_str(), IP.c_str(), Port.c_str());
4053 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(), portno, true, 10, transport.empty() ? NULL : hooks[transport.c_str()]);
4054 if (listener->GetState() == I_LISTENING)
4056 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), portno);
4057 Bindings.push_back(listener);
4061 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %s:%d",IP.c_str(), portno);
4065 ServerInstance->Log(DEBUG,"Done with this binding");
4070 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
4071 HideULines = Conf->ReadFlag("options","hideulines",0);
4072 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
4073 EnableTimeSync = !(Conf->ReadFlag("options","notimesync",0));
4076 for (int j =0; j < Conf->Enumerate("link"); j++)
4079 std::string Allow = Conf->ReadValue("link","allowmask",j);
4080 L.Name = (Conf->ReadValue("link","name",j)).c_str();
4081 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
4082 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
4083 L.Port = Conf->ReadInteger("link","port",j,true);
4084 L.SendPass = Conf->ReadValue("link","sendpass",j);
4085 L.RecvPass = Conf->ReadValue("link","recvpass",j);
4086 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
4087 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
4088 L.Timeout = Conf->ReadInteger("link","timeout",j,true);
4089 L.Hook = Conf->ReadValue("link", "transport", j);
4091 if ((!L.Hook.empty()) && (hooks.find(L.Hook.c_str()) == hooks.end()))
4093 ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for link '%s' - maybe you forgot to load it BEFORE m_spanningtree in your config file? Skipping <link> tag completely.",
4094 L.Hook.c_str(), L.Name.c_str());
4099 L.NextConnectTime = time(NULL) + L.AutoConnect;
4100 /* Bugfix by brain, do not allow people to enter bad configurations */
4101 if (L.Name != ServerInstance->Config->ServerName)
4103 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
4105 ValidIPs.push_back(L.IPAddr);
4108 ValidIPs.push_back(Allow);
4110 /* Needs resolving */
4112 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
4116 SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L);
4117 ServerInstance->AddResolver(sr);
4119 catch (ModuleException& e)
4121 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4125 LinkBlocks.push_back(L);
4126 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
4132 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
4134 else if (L.RecvPass == "")
4136 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
4138 else if (L.SendPass == "")
4140 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
4142 else if (L.Name == "")
4144 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
4148 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
4154 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
4160 /** To create a timer which recurs every second, we inherit from InspTimer.
4161 * InspTimer is only one-shot however, so at the end of each Tick() we simply
4162 * insert another of ourselves into the pending queue :)
4164 class TimeSyncTimer : public InspTimer
4168 ModuleSpanningTree *Module;
4170 TimeSyncTimer(InspIRCd *Instance, ModuleSpanningTree *Mod);
4171 virtual void Tick(time_t TIME);
4174 HandshakeTimer::HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u) : InspTimer(1, time(NULL)), Instance(Inst), sock(s), lnk(l), Utils(u)
4176 thefd = sock->GetFd();
4179 void HandshakeTimer::Tick(time_t TIME)
4181 if (Instance->SE->GetRef(thefd) == sock)
4183 if (sock->GetHook() && InspSocketHSCompleteRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send())
4185 Instance->Log(DEBUG,"Handshake timer activated, sending SERVER and/or CAPAB");
4186 InspSocketAttachCertRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send();
4187 sock->SendCapabilities();
4188 if (sock->GetLinkState() == CONNECTING)
4190 sock->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+lnk->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
4195 Instance->Timers->AddTimer(new HandshakeTimer(Instance, sock, lnk, Utils));
4200 class ModuleSpanningTree : public Module
4204 unsigned int max_local;
4205 unsigned int max_global;
4206 cmd_rconnect* command_rconnect;
4207 SpanningTreeUtilities* Utils;
4210 TimeSyncTimer *SyncTimer;
4212 ModuleSpanningTree(InspIRCd* Me)
4213 : Module::Module(Me), max_local(0), max_global(0)
4215 ServerInstance->UseInterface("InspSocketHook");
4217 Utils = new SpanningTreeUtilities(Me, this);
4219 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
4220 ServerInstance->AddCommand(command_rconnect);
4222 if (Utils->EnableTimeSync)
4224 SyncTimer = new TimeSyncTimer(ServerInstance, this);
4225 ServerInstance->Timers->AddTimer(SyncTimer);
4231 void ShowLinks(TreeServer* Current, userrec* user, int hops)
4233 std::string Parent = Utils->TreeRoot->GetName();
4234 if (Current->GetParent())
4236 Parent = Current->GetParent()->GetName();
4238 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4240 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4244 ShowLinks(Current->GetChild(q),user,hops+1);
4249 ShowLinks(Current->GetChild(q),user,hops+1);
4252 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
4253 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
4255 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());
4258 int CountLocalServs()
4260 return Utils->TreeRoot->ChildCount();
4265 return Utils->serverlist.size();
4268 void HandleLinks(const char** parameters, int pcnt, userrec* user)
4270 ShowLinks(Utils->TreeRoot,user,0);
4271 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
4275 void HandleLusers(const char** parameters, int pcnt, userrec* user)
4277 unsigned int n_users = ServerInstance->UserCount();
4279 /* Only update these when someone wants to see them, more efficient */
4280 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
4281 max_local = ServerInstance->LocalUserCount();
4282 if (n_users > max_global)
4283 max_global = n_users;
4285 unsigned int ulined_count = 0;
4286 unsigned int ulined_local_count = 0;
4288 /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
4289 * locally and globally (locally means directly connected to us)
4291 if ((Utils->HideULines) && (!*user->oper))
4293 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
4295 if (ServerInstance->ULine(q->second->GetName().c_str()))
4298 if (q->second->GetParent() == Utils->TreeRoot)
4299 ulined_local_count++;
4304 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),ulined_count ? this->CountServs() - ulined_count : this->CountServs());
4305 if (ServerInstance->OperCount())
4306 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
4307 if (ServerInstance->UnregisteredUserCount())
4308 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
4309 if (ServerInstance->ChannelCount())
4310 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
4311 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
4312 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
4313 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
4317 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
4319 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4323 for (int t = 0; t < depth; t++)
4325 matrix[line][t] = ' ';
4328 // For Aligning, we need to work out exactly how deep this thing is, and produce
4329 // a 'Spacer' String to compensate.
4332 memset(spacer,' ',40);
4333 if ((40 - Current->GetName().length() - depth) > 1) {
4334 spacer[40 - Current->GetName().length() - depth] = '\0';
4343 if (ServerInstance->clientlist->size() == 0) {
4344 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4349 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist->size()) * 100;
4351 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4352 totusers += Current->GetUserCount();
4354 strlcpy(&matrix[line][depth],text,80);
4356 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4358 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4362 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4367 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4373 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4377 /* Remote MOTD, the server is within the 1st parameter */
4378 std::deque<std::string> params;
4379 params.push_back(parameters[0]);
4381 /* Send it out remotely, generate no reply yet */
4382 TreeServer* s = Utils->FindServerMask(parameters[0]);
4385 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4389 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4396 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4400 /* Remote ADMIN, the server is within the 1st parameter */
4401 std::deque<std::string> params;
4402 params.push_back(parameters[0]);
4404 /* Send it out remotely, generate no reply yet */
4405 TreeServer* s = Utils->FindServerMask(parameters[0]);
4408 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4412 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4419 int HandleStats(const char** parameters, int pcnt, userrec* user)
4423 /* Remote STATS, the server is within the 2nd parameter */
4424 std::deque<std::string> params;
4425 params.push_back(parameters[0]);
4426 params.push_back(parameters[1]);
4427 /* Send it out remotely, generate no reply yet */
4428 TreeServer* s = Utils->FindServerMask(parameters[1]);
4431 params[1] = s->GetName();
4432 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4436 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4443 // Ok, prepare to be confused.
4444 // After much mulling over how to approach this, it struck me that
4445 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4446 // keeping track of a ton of ascii characters, and line by line
4447 // under recursion working out where to place them using multiplications
4448 // and divisons, we instead render the map onto a backplane of characters
4449 // (a character matrix), then draw the branches as a series of "L" shapes
4450 // from the nodes. This is not only friendlier on CPU it uses less stack.
4452 void HandleMap(const char** parameters, int pcnt, userrec* user)
4454 // This array represents a virtual screen which we will
4455 // "scratch" draw to, as the console device of an irc
4456 // client does not provide for a proper terminal.
4458 float totservers = 0;
4459 char matrix[128][80];
4460 for (unsigned int t = 0; t < 128; t++)
4462 matrix[t][0] = '\0';
4465 // The only recursive bit is called here.
4466 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4467 // Process each line one by one. The algorithm has a limit of
4468 // 128 servers (which is far more than a spanning tree should have
4469 // anyway, so we're ok). This limit can be raised simply by making
4470 // the character matrix deeper, 128 rows taking 10k of memory.
4471 for (int l = 1; l < line; l++)
4473 // scan across the line looking for the start of the
4474 // servername (the recursive part of the algorithm has placed
4475 // the servers at indented positions depending on what they
4477 int first_nonspace = 0;
4478 while (matrix[l][first_nonspace] == ' ')
4483 // Draw the `- (corner) section: this may be overwritten by
4484 // another L shape passing along the same vertical pane, becoming
4485 // a |- (branch) section instead.
4486 matrix[l][first_nonspace] = '-';
4487 matrix[l][first_nonspace-1] = '`';
4489 // Draw upwards until we hit the parent server, causing possibly
4490 // other corners (`-) to become branches (|-)
4491 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4493 matrix[l2][first_nonspace-1] = '|';
4497 // dump the whole lot to the user. This is the easy bit, honest.
4498 for (int t = 0; t < line; t++)
4500 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4502 float avg_users = totusers / totservers;
4503 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);
4504 user->WriteServ("007 %s :End of /MAP",user->nick);
4508 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4510 TreeServer* s = Utils->FindServerMask(parameters[0]);
4513 if (s == Utils->TreeRoot)
4515 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4518 TreeSocket* sock = s->GetSocket();
4521 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4522 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4523 sock->Squit(s,std::string("Server quit by ") + user->GetFullRealHost());
4524 ServerInstance->SE->DelFd(sock);
4531 std::deque<std::string> params;
4532 params.push_back(parameters[0]);
4533 params.push_back(std::string(":Server quit by ") + user->GetFullRealHost());
4534 Utils->DoOneToOne(user->nick, "RSQUIT", params, parameters[0]);
4539 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4544 int HandleTime(const char** parameters, int pcnt, userrec* user)
4546 if ((IS_LOCAL(user)) && (pcnt))
4548 TreeServer* found = Utils->FindServerMask(parameters[0]);
4551 // we dont' override for local server
4552 if (found == Utils->TreeRoot)
4555 std::deque<std::string> params;
4556 params.push_back(found->GetName());
4557 params.push_back(user->nick);
4558 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4562 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4568 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4570 if ((IS_LOCAL(user)) && (pcnt > 1))
4572 userrec* remote = ServerInstance->FindNick(parameters[1]);
4573 if ((remote) && (remote->GetFd() < 0))
4575 std::deque<std::string> params;
4576 params.push_back(parameters[1]);
4577 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4582 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4583 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4590 void DoPingChecks(time_t curtime)
4592 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4594 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4595 TreeSocket* sock = serv->GetSocket();
4598 if (curtime >= serv->NextPingTime())
4600 if (serv->AnsweredLastPing())
4602 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4603 serv->SetNextPingTime(curtime + 60);
4607 // they didnt answer, boot them
4608 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4609 sock->Squit(serv,"Ping timeout");
4610 ServerInstance->SE->DelFd(sock);
4620 void ConnectServer(Link* x)
4624 /* Do we already have an IP? If so, no need to resolve it. */
4625 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4627 /* Gave a hook, but it wasnt one we know */
4628 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
4631 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
4632 if (newsocket->GetFd() > -1)
4634 /* Handled automatically on success */
4638 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4640 Utils->DoFailOver(x);
4647 ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x);
4648 ServerInstance->AddResolver(snr);
4650 catch (ModuleException& e)
4652 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4653 Utils->DoFailOver(x);
4658 void AutoConnectServers(time_t curtime)
4660 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4662 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4664 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4665 x->NextConnectTime = curtime + x->AutoConnect;
4666 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4667 if (x->FailOver.length())
4669 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4672 /* The failover for this server is currently a member of the network.
4673 * The failover probably succeeded, where the main link did not.
4674 * Don't try the main link until the failover is gone again.
4681 // an autoconnected server is not connected. Check if its time to connect it
4682 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4683 this->ConnectServer(&(*x));
4689 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4691 // we've already checked if pcnt > 0, so this is safe
4692 TreeServer* found = Utils->FindServerMask(parameters[0]);
4695 std::string Version = found->GetVersion();
4696 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4697 if (found == Utils->TreeRoot)
4699 ServerInstance->Config->Send005(user);
4704 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4709 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4711 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4713 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4715 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4718 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);
4719 ConnectServer(&(*x));
4724 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());
4729 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4733 void BroadcastTimeSync()
4735 std::deque<std::string> params;
4736 params.push_back(ConvToStr(ServerInstance->Time(true)));
4737 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
4740 virtual int OnStats(char statschar, userrec* user, string_list &results)
4742 if ((statschar == 'c') || (statschar == 'n'))
4744 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4746 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" "+statschar+" *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].Hook.empty() ? "plaintext" : Utils->LinkBlocks[i].Hook)+" "+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
4747 if (statschar == 'c')
4748 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4750 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4751 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);
4757 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4759 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4763 if (command == "CONNECT")
4765 return this->HandleConnect(parameters,pcnt,user);
4767 else if (command == "STATS")
4769 return this->HandleStats(parameters,pcnt,user);
4771 else if (command == "MOTD")
4773 return this->HandleMotd(parameters,pcnt,user);
4775 else if (command == "ADMIN")
4777 return this->HandleAdmin(parameters,pcnt,user);
4779 else if (command == "SQUIT")
4781 return this->HandleSquit(parameters,pcnt,user);
4783 else if (command == "MAP")
4785 this->HandleMap(parameters,pcnt,user);
4788 else if ((command == "TIME") && (pcnt > 0))
4790 return this->HandleTime(parameters,pcnt,user);
4792 else if (command == "LUSERS")
4794 this->HandleLusers(parameters,pcnt,user);
4797 else if (command == "LINKS")
4799 this->HandleLinks(parameters,pcnt,user);
4802 else if (command == "WHOIS")
4807 return this->HandleRemoteWhois(parameters,pcnt,user);
4810 else if ((command == "VERSION") && (pcnt > 0))
4812 this->HandleVersion(parameters,pcnt,user);
4819 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4821 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4823 // this bit of code cleverly routes all module commands
4824 // to all remote severs *automatically* so that modules
4825 // can just handle commands locally, without having
4826 // to have any special provision in place for remote
4827 // commands and linking protocols.
4828 std::deque<std::string> params;
4830 for (int j = 0; j < pcnt; j++)
4832 if (strchr(parameters[j],' '))
4834 params.push_back(":" + std::string(parameters[j]));
4838 params.push_back(std::string(parameters[j]));
4841 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4842 Utils->DoOneToMany(user->nick,command,params);
4846 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4848 TreeServer* s = Utils->FindServer(servername);
4851 description = s->GetDesc();
4855 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4857 if (IS_LOCAL(source))
4859 std::deque<std::string> params;
4860 params.push_back(dest->nick);
4861 params.push_back(channel->name);
4862 Utils->DoOneToMany(source->nick,"INVITE",params);
4866 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4868 std::deque<std::string> params;
4869 params.push_back(chan->name);
4870 params.push_back(":"+topic);
4871 Utils->DoOneToMany(user->nick,"TOPIC",params);
4874 virtual void OnWallops(userrec* user, const std::string &text)
4878 std::deque<std::string> params;
4879 params.push_back(":"+text);
4880 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4884 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4886 if (target_type == TYPE_USER)
4888 userrec* d = (userrec*)dest;
4889 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4891 std::deque<std::string> params;
4893 params.push_back(d->nick);
4894 params.push_back(":"+text);
4895 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4898 else if (target_type == TYPE_CHANNEL)
4902 chanrec *c = (chanrec*)dest;
4905 std::string cname = c->name;
4907 cname = status + cname;
4908 TreeServerList list;
4909 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4911 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4913 TreeSocket* Sock = i->second->GetSocket();
4915 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4920 else if (target_type == TYPE_SERVER)
4924 char* target = (char*)dest;
4925 std::deque<std::string> par;
4926 par.push_back(target);
4927 par.push_back(":"+text);
4928 Utils->DoOneToMany(user->nick,"NOTICE",par);
4933 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4935 if (target_type == TYPE_USER)
4937 // route private messages which are targetted at clients only to the server
4938 // which needs to receive them
4939 userrec* d = (userrec*)dest;
4940 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4942 std::deque<std::string> params;
4944 params.push_back(d->nick);
4945 params.push_back(":"+text);
4946 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4949 else if (target_type == TYPE_CHANNEL)
4953 chanrec *c = (chanrec*)dest;
4956 std::string cname = c->name;
4958 cname = status + cname;
4959 TreeServerList list;
4960 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4962 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4964 TreeSocket* Sock = i->second->GetSocket();
4966 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4971 else if (target_type == TYPE_SERVER)
4975 char* target = (char*)dest;
4976 std::deque<std::string> par;
4977 par.push_back(target);
4978 par.push_back(":"+text);
4979 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4984 virtual void OnBackgroundTimer(time_t curtime)
4986 AutoConnectServers(curtime);
4987 DoPingChecks(curtime);
4990 virtual void OnUserJoin(userrec* user, chanrec* channel)
4992 // Only do this for local users
4995 if (channel->GetUserCounter() == 1)
4997 std::deque<std::string> params;
4998 // set up their permissions and the channel TS with FJOIN.
4999 // All users are FJOINed now, because a module may specify
5000 // new joining permissions for the user.
5001 params.push_back(channel->name);
5002 params.push_back(ConvToStr(channel->age));
5003 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
5004 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
5005 /* First user in, sync the modes for the channel */
5007 /* This is safe, all inspircd servers default to +nt */
5008 params.push_back("+nt");
5009 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
5013 std::deque<std::string> params;
5014 params.push_back(channel->name);
5015 params.push_back(ConvToStr(channel->age));
5016 Utils->DoOneToMany(user->nick,"JOIN",params);
5021 virtual void OnChangeHost(userrec* user, const std::string &newhost)
5023 // only occurs for local clients
5024 if (user->registered != REG_ALL)
5026 std::deque<std::string> params;
5027 params.push_back(newhost);
5028 Utils->DoOneToMany(user->nick,"FHOST",params);
5031 virtual void OnChangeName(userrec* user, const std::string &gecos)
5033 // only occurs for local clients
5034 if (user->registered != REG_ALL)
5036 std::deque<std::string> params;
5037 params.push_back(gecos);
5038 Utils->DoOneToMany(user->nick,"FNAME",params);
5041 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
5045 std::deque<std::string> params;
5046 params.push_back(channel->name);
5047 if (partmessage != "")
5048 params.push_back(":"+partmessage);
5049 Utils->DoOneToMany(user->nick,"PART",params);
5053 virtual void OnUserConnect(userrec* user)
5055 char agestr[MAXBUF];
5058 std::deque<std::string> params;
5059 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
5060 params.push_back(agestr);
5061 params.push_back(user->nick);
5062 params.push_back(user->host);
5063 params.push_back(user->dhost);
5064 params.push_back(user->ident);
5065 params.push_back("+"+std::string(user->FormatModes()));
5066 params.push_back(user->GetIPString());
5067 params.push_back(":"+std::string(user->fullname));
5068 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
5070 // User is Local, change needs to be reflected!
5071 TreeServer* SourceServer = Utils->FindServer(user->server);
5074 SourceServer->AddUserCount();
5080 virtual void OnUserQuit(userrec* user, const std::string &reason)
5082 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5084 std::deque<std::string> params;
5085 params.push_back(":"+reason);
5086 Utils->DoOneToMany(user->nick,"QUIT",params);
5088 // Regardless, We need to modify the user Counts..
5089 TreeServer* SourceServer = Utils->FindServer(user->server);
5092 SourceServer->DelUserCount();
5097 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
5101 std::deque<std::string> params;
5102 params.push_back(user->nick);
5103 Utils->DoOneToMany(oldnick,"NICK",params);
5107 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
5109 if ((source) && (IS_LOCAL(source)))
5111 std::deque<std::string> params;
5112 params.push_back(chan->name);
5113 params.push_back(user->nick);
5114 params.push_back(":"+reason);
5115 Utils->DoOneToMany(source->nick,"KICK",params);
5119 std::deque<std::string> params;
5120 params.push_back(chan->name);
5121 params.push_back(user->nick);
5122 params.push_back(":"+reason);
5123 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
5127 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
5129 std::deque<std::string> params;
5130 params.push_back(dest->nick);
5131 params.push_back(":"+reason);
5132 Utils->DoOneToMany(source->nick,"KILL",params);
5135 virtual void OnRehash(const std::string ¶meter)
5137 if (parameter != "")
5139 std::deque<std::string> params;
5140 params.push_back(parameter);
5141 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
5143 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
5145 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
5146 ServerInstance->RehashServer();
5149 Utils->ReadConfiguration(false);
5152 // note: the protocol does not allow direct umode +o except
5153 // via NICK with 8 params. sending OPERTYPE infers +o modechange
5155 virtual void OnOper(userrec* user, const std::string &opertype)
5159 std::deque<std::string> params;
5160 params.push_back(opertype);
5161 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
5165 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
5169 /* Server-set lines */
5171 snprintf(data,MAXBUF,"%c %s %s %lu %lu :%s", linetype, host.c_str(), ServerInstance->Config->ServerName, (unsigned long)ServerInstance->Time(false),
5172 (unsigned long)duration, reason.c_str());
5173 std::deque<std::string> params;
5174 params.push_back(data);
5175 Utils->DoOneToMany(ServerInstance->Config->ServerName, "ADDLINE", params);
5179 if (IS_LOCAL(source))
5182 snprintf(type,8,"%cLINE",linetype);
5183 std::string stype = type;
5186 char sduration[MAXBUF];
5187 snprintf(sduration,MAXBUF,"%ld",duration);
5188 std::deque<std::string> params;
5189 params.push_back(host);
5190 params.push_back(sduration);
5191 params.push_back(":"+reason);
5192 Utils->DoOneToMany(source->nick,stype,params);
5196 std::deque<std::string> params;
5197 params.push_back(host);
5198 Utils->DoOneToMany(source->nick,stype,params);
5204 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5206 OnLine(source,hostmask,true,'G',duration,reason);
5209 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
5211 OnLine(source,ipmask,true,'Z',duration,reason);
5214 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
5216 OnLine(source,nickmask,true,'Q',duration,reason);
5219 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5221 OnLine(source,hostmask,true,'E',duration,reason);
5224 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
5226 OnLine(source,hostmask,false,'G',0,"");
5229 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
5231 OnLine(source,ipmask,false,'Z',0,"");
5234 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
5236 OnLine(source,nickmask,false,'Q',0,"");
5239 virtual void OnDelELine(userrec* source, const std::string &hostmask)
5241 OnLine(source,hostmask,false,'E',0,"");
5244 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
5246 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5248 if (target_type == TYPE_USER)
5250 userrec* u = (userrec*)dest;
5251 std::deque<std::string> params;
5252 params.push_back(u->nick);
5253 params.push_back(text);
5254 Utils->DoOneToMany(user->nick,"MODE",params);
5258 chanrec* c = (chanrec*)dest;
5259 std::deque<std::string> params;
5260 params.push_back(c->name);
5261 params.push_back(text);
5262 Utils->DoOneToMany(user->nick,"MODE",params);
5267 virtual void OnSetAway(userrec* user)
5271 std::deque<std::string> params;
5272 params.push_back(":"+std::string(user->awaymsg));
5273 Utils->DoOneToMany(user->nick,"AWAY",params);
5277 virtual void OnCancelAway(userrec* user)
5281 std::deque<std::string> params;
5283 Utils->DoOneToMany(user->nick,"AWAY",params);
5287 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
5289 TreeSocket* s = (TreeSocket*)opaque;
5292 if (target_type == TYPE_USER)
5294 userrec* u = (userrec*)target;
5295 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
5299 chanrec* c = (chanrec*)target;
5300 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
5305 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
5307 TreeSocket* s = (TreeSocket*)opaque;
5310 if (target_type == TYPE_USER)
5312 userrec* u = (userrec*)target;
5313 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
5315 else if (target_type == TYPE_CHANNEL)
5317 chanrec* c = (chanrec*)target;
5318 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
5321 if (target_type == TYPE_OTHER)
5323 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
5327 virtual void OnEvent(Event* event)
5329 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
5331 if (event->GetEventID() == "send_metadata")
5333 if (params->size() < 3)
5335 (*params)[2] = ":" + (*params)[2];
5336 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
5338 else if (event->GetEventID() == "send_topic")
5340 if (params->size() < 2)
5342 (*params)[1] = ":" + (*params)[1];
5343 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
5344 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
5345 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5347 else if (event->GetEventID() == "send_mode")
5349 if (params->size() < 2)
5351 // Insert the TS value of the object, either userrec or chanrec
5353 userrec* a = ServerInstance->FindNick((*params)[0]);
5360 chanrec* a = ServerInstance->FindChan((*params)[0]);
5366 params->insert(params->begin() + 1,ConvToStr(ourTS));
5367 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5369 else if (event->GetEventID() == "send_mode_explicit")
5371 if (params->size() < 2)
5373 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
5375 else if (event->GetEventID() == "send_opers")
5377 if (params->size() < 1)
5379 (*params)[0] = ":" + (*params)[0];
5380 Utils->DoOneToMany(ServerInstance->Config->ServerName,"OPERNOTICE",*params);
5382 else if (event->GetEventID() == "send_modeset")
5384 if (params->size() < 2)
5386 (*params)[1] = ":" + (*params)[1];
5387 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODENOTICE",*params);
5389 else if (event->GetEventID() == "send_snoset")
5391 if (params->size() < 2)
5393 (*params)[1] = ":" + (*params)[1];
5394 Utils->DoOneToMany(ServerInstance->Config->ServerName,"SNONOTICE",*params);
5396 else if (event->GetEventID() == "send_push")
5398 if (params->size() < 2)
5401 userrec *a = ServerInstance->FindNick((*params)[0]);
5406 (*params)[1] = ":" + (*params)[1];
5407 Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
5411 virtual ~ModuleSpanningTree()
5413 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5414 /* This will also free the listeners */
5417 ServerInstance->Timers->DelTimer(SyncTimer);
5419 ServerInstance->DoneWithInterface("InspSocketHook");
5422 virtual Version GetVersion()
5424 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5427 void Implements(char* List)
5429 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5430 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5431 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5432 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5433 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5434 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5435 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5438 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5439 * so that any activity it sees is FINAL, e.g. we arent going to send out
5440 * a NICK message before m_cloaking has finished putting the +x on the user,
5442 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5443 * the module call queue.
5445 Priority Prioritize()
5447 return PRIORITY_LAST;
5451 TimeSyncTimer::TimeSyncTimer(InspIRCd *Inst, ModuleSpanningTree *Mod) : InspTimer(43200, Inst->Time()), Instance(Inst), Module(Mod)
5455 void TimeSyncTimer::Tick(time_t TIME)
5457 Module->BroadcastTimeSync();
5458 Module->SyncTimer = new TimeSyncTimer(Instance, Module);
5459 Instance->Timers->AddTimer(Module->SyncTimer);
5462 void SpanningTreeUtilities::DoFailOver(Link* x)
5464 if (x->FailOver.length())
5466 if (x->FailOver == x->Name)
5468 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());
5471 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5474 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5475 Creator->ConnectServer(TryThisOne);
5479 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5484 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5486 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5488 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5496 class ModuleSpanningTreeFactory : public ModuleFactory
5499 ModuleSpanningTreeFactory()
5503 ~ModuleSpanningTreeFactory()
5507 virtual Module * CreateModule(InspIRCd* Me)
5509 return new ModuleSpanningTree(Me);
5515 extern "C" void * init_module( void )
5517 return new ModuleSpanningTreeFactory;