1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
19 #include "configreader.h"
23 #include "commands/cmd_whois.h"
24 #include "commands/cmd_stats.h"
31 /** If you make a change which breaks the protocol, increment this.
32 * If you completely change the protocol, completely change the number.
34 * IMPORTANT: If you make changes, document your changes here, without fail:
35 * http://www.inspircd.org/wiki/List_of_protocol_changes_between_versions
37 * Failure to document your protocol changes will result in a painfully
38 * painful death by pain. You have been warned.
40 const long ProtocolVersion = 1103;
43 * The server list in InspIRCd is maintained as two structures
44 * which hold the data in different ways. Most of the time, we
45 * want to very quicky obtain three pieces of information:
47 * (1) The information on a server
48 * (2) The information on the server we must send data through
49 * to actually REACH the server we're after
50 * (3) Potentially, the child/parent objects of this server
52 * The InspIRCd spanning protocol provides easy access to these
53 * by storing the data firstly in a recursive structure, where
54 * each item references its parent item, and a dynamic list
55 * of child items, and another structure which stores the items
56 * hashed, linearly. This means that if we want to find a server
57 * by name quickly, we can look it up in the hash, avoiding
58 * any O(n) lookups. If however, during a split or sync, we want
59 * to apply an operation to a server, and any of its child objects
60 * we can resort to recursion to walk the tree structure.
61 * Any socket can have one of five states at any one time.
62 * The LISTENER state indicates a socket which is listening
63 * for connections. It cannot receive data itself, only incoming
65 * The CONNECTING state indicates an outbound socket which is
66 * waiting to be writeable.
67 * The WAIT_AUTH_1 state indicates the socket is outbound and
68 * has successfully connected, but has not yet sent and received
70 * The WAIT_AUTH_2 state indicates that the socket is inbound
71 * (allocated by a LISTENER) but has not yet sent and received
73 * The CONNECTED state represents a fully authorized, fully
76 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
78 /* Foward declarations */
82 class ModuleSpanningTree;
83 class SpanningTreeUtilities;
85 /* This hash_map holds the hash equivalent of the server
86 * tree, used for rapid linear lookups.
88 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
90 typedef std::map<TreeServer*,TreeServer*> TreeServerList;
92 /** A group of modules that implement InspSocketHook
93 * that we can use to hook our server to server connections.
95 typedef std::map<irc::string, Module*> hookmodules;
97 /** The Link class might as well be a struct,
98 * but this is C++ and we don't believe in structs (!).
99 * It holds the entire information of one <link>
100 * tag from the main config file. We maintain a list
101 * of them, and populate the list on rehash/load.
103 class Link : public classbase
109 std::string SendPass;
110 std::string RecvPass;
111 unsigned long AutoConnect;
112 time_t NextConnectTime;
113 bool HiddenFromStats;
114 std::string FailOver;
119 class HandshakeTimer : public InspTimer
125 SpanningTreeUtilities* Utils;
128 HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u);
129 virtual void Tick(time_t TIME);
133 /** Contains helper functions and variables for this module,
134 * and keeps them out of the global namespace
136 class SpanningTreeUtilities
141 InspIRCd* ServerInstance;
145 ModuleSpanningTree* Creator;
146 /** Flatten links and /MAP for non-opers
149 /** Hide U-Lined servers in /MAP and /LINKS
152 /** Announce TS changes to channels on merge
154 bool AnnounceTSChange;
155 /** Synchronize timestamps between servers
158 /** Socket bindings for listening sockets
160 std::vector<TreeSocket*> Bindings;
161 /** This variable represents the root of the server tree
163 TreeServer *TreeRoot;
164 /** IPs allowed to link to us
166 std::vector<std::string> ValidIPs;
167 /** Hash of currently connected servers by name
169 server_hash serverlist;
170 /** Holds the data from the <link> tags in the conf
172 std::vector<Link> LinkBlocks;
175 std::vector<std::string> hooknames;
177 /** Initialise utility class
179 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
180 /** Destroy class and free listeners etc
182 ~SpanningTreeUtilities();
183 /** Send a message from this server to one other local or remote
185 bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
186 /** Send a message from this server to all but one other, local or remote
188 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
189 /** Send a message from this server to all but one other, local or remote
191 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
192 /** Send a message from this server to all others
194 bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
195 /** Send a message from this server to all others
197 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
198 /** 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)
200 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
201 /** Read the spanningtree module's tags from the config file
203 void ReadConfiguration(bool rebind);
204 /** Add a server to the server list for GetListOfServersForChannel
206 void AddThisServer(TreeServer* server, TreeServerList &list);
207 /** Compile a list of servers which contain members of channel c
209 void GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list);
210 /** Find a server by name
212 TreeServer* FindServer(const std::string &ServerName);
213 /** Find a route to a server by name
215 TreeServer* BestRouteTo(const std::string &ServerName);
216 /** Find a server by glob mask
218 TreeServer* FindServerMask(const std::string &ServerName);
219 /** Returns true if this is a server name we recognise
221 bool IsServer(const std::string &ServerName);
222 /** Attempt to connect to the failover link of link x
224 void DoFailOver(Link* x);
225 /** Find a link tag from a server name
227 Link* FindLink(const std::string& name);
231 /** Each server in the tree is represented by one class of
232 * type TreeServer. A locally connected TreeServer can
233 * have a class of type TreeSocket associated with it, for
234 * remote servers, the TreeSocket entry will be NULL.
235 * Each server also maintains a pointer to its parent
236 * (NULL if this server is ours, at the top of the tree)
237 * and a pointer to its "Route" (see the comments in the
238 * constructors below), and also a dynamic list of pointers
239 * to its children which can be iterated recursively
240 * if required. Creating or deleting objects of type
241 i* TreeServer automatically maintains the hash_map of
242 * TreeServer items, deleting and inserting them as they
243 * are created and destroyed.
245 class TreeServer : public classbase
247 InspIRCd* ServerInstance; /* Creator */
248 TreeServer* Parent; /* Parent entry */
249 TreeServer* Route; /* Route entry */
250 std::vector<TreeServer*> Children; /* List of child objects */
251 irc::string ServerName; /* Server's name */
252 std::string ServerDesc; /* Server's description */
253 std::string VersionString; /* Version string or empty string */
254 int UserCount; /* Not used in this version */
255 int OperCount; /* Not used in this version */
256 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
257 time_t NextPing; /* After this time, the server should be PINGed*/
258 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
259 SpanningTreeUtilities* Utils; /* Utility class */
263 /** We don't use this constructor. Its a dummy, and won't cause any insertion
264 * of the TreeServer into the hash_map. See below for the two we DO use.
266 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
272 UserCount = OperCount = 0;
273 VersionString = ServerInstance->GetVersionString();
276 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
277 * represents our own server. Therefore, it has no route, no parent, and
278 * no socket associated with it. Its version string is our own local version.
280 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
284 UserCount = ServerInstance->UserCount();
285 OperCount = ServerInstance->OperCount();
286 VersionString = ServerInstance->GetVersionString();
288 Socket = NULL; /* Fix by brain */
292 /** When we create a new server, we call this constructor to initialize it.
293 * This constructor initializes the server's Route and Parent, and sets up
294 * its ping counters so that it will be pinged one minute from now.
296 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
297 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
300 UserCount = OperCount = 0;
301 this->SetNextPingTime(time(NULL) + 60);
304 /* find the 'route' for this server (e.g. the one directly connected
305 * to the local server, which we can use to reach it)
307 * In the following example, consider we have just added a TreeServer
308 * class for server G on our network, of which we are server A.
309 * To route traffic to G (marked with a *) we must send the data to
310 * B (marked with a +) so this algorithm initializes the 'Route'
311 * value to point at whichever server traffic must be routed through
312 * to get here. If we were to try this algorithm with server B,
313 * the Route pointer would point at its own object ('this').
323 * We only run this algorithm when a server is created, as
324 * the routes remain constant while ever the server exists, and
325 * do not need to be re-calculated.
329 if (Route == Utils->TreeRoot)
335 while (this->Route->GetParent() != Utils->TreeRoot)
337 this->Route = Route->GetParent();
341 /* Because recursive code is slow and takes a lot of resources,
342 * we store two representations of the server tree. The first
343 * is a recursive structure where each server references its
344 * children and its parent, which is used for netbursts and
345 * netsplits to dump the whole dataset to the other server,
346 * and the second is used for very fast lookups when routing
347 * messages and is instead a hash_map, where each item can
348 * be referenced by its server name. The AddHashEntry()
349 * call below automatically inserts each TreeServer class
350 * into the hash_map as it is created. There is a similar
351 * maintainance call in the destructor to tidy up deleted
355 this->AddHashEntry();
358 int QuitUsers(const std::string &reason)
360 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
361 const char* reason_s = reason.c_str();
362 std::vector<userrec*> time_to_die;
363 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
365 if (!strcmp(n->second->server, this->ServerName.c_str()))
367 time_to_die.push_back(n->second);
370 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
372 userrec* a = (userrec*)*n;
373 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
375 userrec::QuitUser(ServerInstance,a,reason_s);
377 return time_to_die.size();
380 /** This method is used to add the structure to the
381 * hash_map for linear searches. It is only called
382 * by the constructors.
386 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
387 if (iter == Utils->serverlist.end())
388 Utils->serverlist[this->ServerName.c_str()] = this;
391 /** This method removes the reference to this object
392 * from the hash_map which is used for linear searches.
393 * It is only called by the default destructor.
397 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
398 if (iter != Utils->serverlist.end())
399 Utils->serverlist.erase(iter);
402 /** These accessors etc should be pretty self-
405 TreeServer* GetRoute()
410 std::string GetName()
412 return ServerName.c_str();
415 std::string GetDesc()
420 std::string GetVersion()
422 return VersionString;
425 void SetNextPingTime(time_t t)
428 LastPingWasGood = false;
431 time_t NextPingTime()
436 bool AnsweredLastPing()
438 return LastPingWasGood;
443 LastPingWasGood = true;
466 TreeSocket* GetSocket()
471 TreeServer* GetParent()
476 void SetVersion(const std::string &Version)
478 VersionString = Version;
481 unsigned int ChildCount()
483 return Children.size();
486 TreeServer* GetChild(unsigned int n)
488 if (n < Children.size())
490 /* Make sure they cant request
491 * an out-of-range object. After
492 * all we know what these programmer
493 * types are like *grin*.
503 void AddChild(TreeServer* Child)
505 Children.push_back(Child);
508 bool DelChild(TreeServer* Child)
510 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
521 /** Removes child nodes of this node, and of that node, etc etc.
522 * This is used during netsplits to automatically tidy up the
523 * server tree. It is slow, we don't use it for much else.
527 bool stillchildren = true;
528 while (stillchildren)
530 stillchildren = false;
531 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
533 TreeServer* s = (TreeServer*)*a;
537 stillchildren = true;
546 /* We'd better tidy up after ourselves, eh? */
547 this->DelHashEntry();
551 /** Yay for fast searches!
552 * This is hundreds of times faster than recursion
553 * or even scanning a linked list, especially when
554 * there are more than a few servers to deal with.
557 TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
559 server_hash::iterator iter;
560 iter = serverlist.find(ServerName.c_str());
561 if (iter != serverlist.end())
571 /** Returns the locally connected server we must route a
572 * message through to reach server 'ServerName'. This
573 * only applies to one-to-one and not one-to-many routing.
574 * See the comments for the constructor of TreeServer
577 TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
579 if (ServerName.c_str() == TreeRoot->GetName())
581 TreeServer* Found = FindServer(ServerName);
584 return Found->GetRoute();
592 /** Find the first server matching a given glob mask.
593 * Theres no find-using-glob method of hash_map [awwww :-(]
594 * so instead, we iterate over the list using an iterator
595 * and match each one until we get a hit. Yes its slow,
598 TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
600 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
602 if (match(i->first.c_str(),ServerName.c_str()))
608 /* A convenient wrapper that returns true if a server exists */
609 bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
611 return (FindServer(ServerName) != NULL);
617 class cmd_rconnect : public command_t
620 SpanningTreeUtilities* Utils;
622 cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
624 this->source = "m_spanningtree.so";
625 syntax = "<remote-server-mask> <servermask>";
628 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
630 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
631 /* Is this aimed at our server? */
632 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
634 /* Yes, initiate the given connect */
635 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
637 para[0] = parameters[1];
638 std::string original_command = std::string("CONNECT ") + parameters[1];
639 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
650 /** Every SERVER connection inbound or outbound is represented by
651 * an object of type TreeSocket.
652 * TreeSockets, being inherited from InspSocket, can be tied into
653 * the core socket engine, and we cn therefore receive activity events
654 * for them, just like activex objects on speed. (yes really, that
655 * is a technical term!) Each of these which relates to a locally
656 * connected server is assocated with it, by hooking it onto a
657 * TreeSocket class using its constructor. In this way, we can
658 * maintain a list of servers, some of which are directly connected,
659 * some of which are not.
661 class TreeSocket : public InspSocket
663 SpanningTreeUtilities* Utils;
665 std::string in_buffer;
666 ServerState LinkState;
667 std::string InboundServerName;
668 std::string InboundDescription;
670 int num_lost_servers;
672 bool LastPingWasGood;
674 unsigned int keylength;
675 std::string ModuleList;
676 std::map<std::string,std::string> CapKeys;
681 /** Because most of the I/O gubbins are encapsulated within
682 * InspSocket, we just call the superclass constructor for
683 * most of the action, and append a few of our own values
686 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod = NULL)
687 : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
690 this->LinkState = LISTENER;
692 Instance->Log(DEBUG, "HOOK = %08x", Hook);
694 if (listening && Hook)
695 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
698 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod = NULL)
699 : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
702 this->LinkState = CONNECTING;
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 Instance->Log(DEBUG, "HOOK = %08x", Hook);
718 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
719 Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils));
723 ServerState GetLinkState()
725 return this->LinkState;
736 InspSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
739 /** When an outbound connection finishes connecting, we receive
740 * this event, and must send our SERVER string to the other
741 * side. If the other side is happy, as outlined in the server
742 * to server docs on the inspircd.org site, the other side
743 * will then send back its own server string.
745 virtual bool OnConnected()
747 if (this->LinkState == CONNECTING)
749 /* we do not need to change state here. */
750 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
752 if (x->Name == this->myhost)
754 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
757 InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
759 this->SendCapabilities();
761 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
763 Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(*x), this->Utils));
765 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
771 /* There is a (remote) chance that between the /CONNECT and the connection
772 * being accepted, some muppet has removed the <link> block and rehashed.
773 * If that happens the connection hangs here until it's closed. Unlikely
774 * and rather harmless.
776 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
780 virtual void OnError(InspSocketError e)
782 /* We don't handle this method, because all our
783 * dirty work is done in OnClose() (see below)
784 * which is still called on error conditions too.
786 if (e == I_ERR_CONNECT)
788 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
789 Link* MyLink = Utils->FindLink(myhost);
791 Utils->DoFailOver(MyLink);
795 virtual int OnDisconnect()
797 /* For the same reason as above, we don't
798 * handle OnDisconnect()
803 /** Recursively send the server tree with distances as hops.
804 * This is used during network burst to inform the other server
805 * (and any of ITS servers too) of what servers we know about.
806 * If at any point any of these servers already exist on the other
807 * end, our connection may be terminated. The hopcounts given
808 * by this function are relative, this doesn't matter so long as
809 * they are all >1, as all the remote servers re-calculate them
810 * to be relative too, with themselves as hop 0.
812 void SendServers(TreeServer* Current, TreeServer* s, int hops)
815 for (unsigned int q = 0; q < Current->ChildCount(); q++)
817 TreeServer* recursive_server = Current->GetChild(q);
818 if (recursive_server != s)
820 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
821 this->WriteLine(command);
822 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
823 /* down to next level */
824 this->SendServers(recursive_server, s, hops+1);
829 std::string MyCapabilities()
831 std::vector<std::string> modlist;
832 std::string capabilities = "";
834 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
836 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
837 modlist.push_back(this->Instance->Config->module_names[i]);
839 sort(modlist.begin(),modlist.end());
840 for (unsigned int i = 0; i < modlist.size(); i++)
843 capabilities = capabilities + ",";
844 capabilities = capabilities + modlist[i];
849 void SendCapabilities()
851 irc::commasepstream modulelist(MyCapabilities());
853 this->WriteLine("CAPAB START");
855 /* Send module names, split at 509 length */
856 std::string item = "*";
857 std::string line = "CAPAB MODULES ";
858 while ((item = modulelist.GetToken()) != "")
860 if (line.length() + item.length() + 1 > 509)
862 this->WriteLine(line);
863 line = "CAPAB MODULES ";
866 if (line != "CAPAB MODULES ")
871 if (line != "CAPAB MODULES ")
872 this->WriteLine(line);
879 #ifdef SUPPORT_IP6LINKS
882 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));
884 this->WriteLine("CAPAB END");
887 /* Check a comma seperated list for an item */
888 bool HasItem(const std::string &list, const std::string &item)
890 irc::commasepstream seplist(list);
892 std::string item2 = "*";
893 while ((item2 = seplist.GetToken()) != "")
902 /* Isolate and return the elements that are different between two comma seperated lists */
903 std::string ListDifference(const std::string &one, const std::string &two)
905 irc::commasepstream list_one(one);
906 std::string item = "*";
907 std::string result = "";
908 while ((item = list_one.GetToken()) != "")
910 if (!HasItem(two, item))
919 bool Capab(const std::deque<std::string> ¶ms)
921 if (params.size() < 1)
923 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
927 if (params[0] == "START")
929 this->ModuleList = "";
930 this->CapKeys.clear();
932 else if (params[0] == "END")
934 std::string reason = "";
936 #ifdef SUPPORT_IP6LINKS
939 /* Compare ModuleList and check CapKeys...
940 * Maybe this could be tidier? -- Brain
942 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
944 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
947 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
951 diff = "this server:" + diff;
953 if (diff.length() == 12)
954 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
956 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
959 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
960 reason = "We don't both support linking to IPV6 servers";
962 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
963 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
965 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
966 reason = "Maximum nickname lengths differ or remote nickname length not specified";
968 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
970 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
972 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
976 reason = "Protocol version not specified";
980 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))))
981 reason = "We don't both have halfop support enabled/disabled identically";
983 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
984 reason = "Maximum ident lengths differ or remote ident length not specified";
986 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
987 reason = "Maximum channel lengths differ or remote channel length not specified";
989 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
990 reason = "Maximum modes per line differ or remote modes per line not specified";
992 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
993 reason = "Maximum quit lengths differ or remote quit length not specified";
995 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
996 reason = "Maximum topic lengths differ or remote topic length not specified";
998 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
999 reason = "Maximum kick lengths differ or remote kick length not specified";
1001 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
1002 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
1004 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
1005 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
1007 if (reason.length())
1009 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
1013 else if ((params[0] == "MODULES") && (params.size() == 2))
1015 if (!this->ModuleList.length())
1017 this->ModuleList.append(params[1]);
1021 this->ModuleList.append(",");
1022 this->ModuleList.append(params[1]);
1025 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1027 irc::tokenstream capabs(params[1]);
1028 std::string item = "*";
1029 while ((item = capabs.GetToken()) != "")
1031 /* Process each key/value pair */
1032 std::string::size_type equals = item.rfind('=');
1033 if (equals != std::string::npos)
1035 std::string var = item.substr(0, equals);
1036 std::string value = item.substr(equals+1, item.length());
1037 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1038 CapKeys[var] = value;
1046 /** This function forces this server to quit, removing this server
1047 * and any users on it (and servers and users below that, etc etc).
1048 * It's very slow and pretty clunky, but luckily unless your network
1049 * is having a REAL bad hair day, this function shouldnt be called
1050 * too many times a month ;-)
1052 void SquitServer(std::string &from, TreeServer* Current)
1054 /* recursively squit the servers attached to 'Current'.
1055 * We're going backwards so we don't remove users
1056 * while we still need them ;)
1058 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1060 TreeServer* recursive_server = Current->GetChild(q);
1061 this->SquitServer(from,recursive_server);
1063 /* Now we've whacked the kids, whack self */
1065 num_lost_users += Current->QuitUsers(from);
1068 /** This is a wrapper function for SquitServer above, which
1069 * does some validation first and passes on the SQUIT to all
1070 * other remaining servers.
1072 void Squit(TreeServer* Current, const std::string &reason)
1074 if ((Current) && (Current != Utils->TreeRoot))
1076 Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
1077 rmode.Send(Instance);
1079 std::deque<std::string> params;
1080 params.push_back(Current->GetName());
1081 params.push_back(":"+reason);
1082 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1083 if (Current->GetParent() == Utils->TreeRoot)
1085 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1089 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1091 num_lost_servers = 0;
1093 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1094 SquitServer(from, Current);
1096 Current->GetParent()->DelChild(Current);
1098 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1102 Instance->Log(DEFAULT,"Squit from unknown server");
1106 /** FMODE command - server mode with timestamp checks */
1107 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1109 /* Chances are this is a 1.0 FMODE without TS */
1110 if (params.size() < 3)
1112 /* No modes were in the command, probably a channel with no modes set on it */
1117 std::string sourceserv;
1119 /* Are we dealing with an FMODE from a user, or from a server? */
1120 userrec* who = this->Instance->FindNick(source);
1123 /* FMODE from a user, set sourceserv to the users server name */
1124 sourceserv = who->server;
1128 /* FMODE from a server, create a fake user to receive mode feedback */
1129 who = new userrec(this->Instance);
1130 who->SetFd(FD_MAGIC_NUMBER);
1131 smode = true; /* Setting this flag tells us we should free the userrec later */
1132 sourceserv = source; /* Set sourceserv to the actual source string */
1134 const char* modelist[64];
1137 memset(&modelist,0,sizeof(modelist));
1138 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1142 /* The timestamp is in this position.
1143 * We don't want to pass that up to the
1144 * server->client protocol!
1146 TS = atoi(params[q].c_str());
1150 /* Everything else is fine to append to the modelist */
1151 modelist[n++] = params[q].c_str();
1155 /* Extract the TS value of the object, either userrec or chanrec */
1156 userrec* dst = this->Instance->FindNick(params[0]);
1157 chanrec* chan = NULL;
1165 chan = this->Instance->FindChan(params[0]);
1171 /* Oops, channel doesnt exist! */
1175 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1180 Instance->Log(DEBUG,"Entering TS equality check");
1181 ModeHandler* mh = NULL;
1182 unsigned long paramptr = 3;
1183 std::string to_bounce = "";
1184 std::string to_keep = "";
1185 std::vector<std::string> params_to_keep;
1186 std::string params_to_bounce = "";
1188 char cur_change = 1;
1189 char old_change = 0;
1190 char old_bounce_change = 0;
1191 /* Merge modes, basically do special stuff to mode with params */
1192 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1205 /* We only care about whats being set,
1206 * not whats being unset
1208 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1210 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1212 /* We only want to do special things to
1213 * modes with parameters, we are going to rewrite
1217 adding ? cur_change = '+' : cur_change = '-';
1219 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1221 /* The mode is set here, check which we should keep */
1224 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1226 if (which_to_keep == true)
1228 /* Keep ours, bounce theirs:
1229 * Send back ours to them and
1230 * drop their mode changs
1232 adding ? cur_change = '+' : cur_change = '-';
1233 if (cur_change != old_bounce_change)
1234 to_bounce += cur_change;
1236 old_bounce_change = cur_change;
1238 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1239 params_to_bounce.append(" ").append(ret.second);
1243 /* Keep theirs: Accept their mode change,
1246 adding ? cur_change = '+' : cur_change = '-';
1247 if (cur_change != old_change)
1248 to_keep += cur_change;
1250 old_change = cur_change;
1252 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1253 params_to_keep.push_back(params[paramptr]);
1258 /* Mode isnt set here, we want it */
1259 adding ? cur_change = '+' : cur_change = '-';
1260 if (cur_change != old_change)
1261 to_keep += cur_change;
1263 old_change = cur_change;
1265 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1266 params_to_keep.push_back(params[paramptr]);
1273 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1277 adding ? cur_change = '+' : cur_change = '-';
1279 /* Just keep this, safe to merge with no checks
1280 * it has no parameters
1283 if (cur_change != old_change)
1284 to_keep += cur_change;
1286 old_change = cur_change;
1288 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1290 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1291 params_to_keep.push_back(params[paramptr++]);
1298 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1302 /* Taking a mode away */
1303 adding ? cur_change = '+' : cur_change = '-';
1305 if (cur_change != old_change)
1306 to_keep += cur_change;
1308 old_change = cur_change;
1310 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1311 params_to_keep.push_back(params[paramptr++]);
1318 if (to_bounce.length())
1320 std::deque<std::string> newparams;
1321 newparams.push_back(params[0]);
1322 newparams.push_back(ConvToStr(ourTS));
1323 newparams.push_back(to_bounce+params_to_bounce);
1324 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1325 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1328 if (to_keep.length())
1332 modelist[0] = params[0].c_str();
1333 modelist[1] = to_keep.c_str();
1335 if (params_to_keep.size() > 0)
1337 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1339 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1340 modelist[n++] = params_to_keep[q].c_str();
1346 Instance->Log(DEBUG,"Send mode");
1347 this->Instance->SendMode(modelist, n, who);
1351 Instance->Log(DEBUG,"Send mode client");
1352 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1355 /* HOT POTATO! PASS IT ON! */
1356 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1360 /* U-lined servers always win regardless of their TS */
1361 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1363 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1364 * SHOULD accept it, if its clock is right.
1366 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1367 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1368 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1370 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1371 * writing the code. It took me a while to come up with this solution.
1373 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1376 std::deque<std::string> newparams; /* New parameter list we send back */
1377 newparams.push_back(params[0]); /* Target, user or channel */
1378 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1379 newparams.push_back(""); /* This contains the mode string. For now
1380 * it's empty, we fill it below.
1383 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1384 * set to avoid a desync here.
1386 std::string modebounce = "";
1389 ModeHandler* mh = NULL;
1390 char cur_change = 1;
1391 char old_change = 0;
1392 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1394 /* Iterate over all mode chars in the sent set */
1397 /* Adding or subtracting modes? */
1405 /* Find the mode handler for this mode */
1406 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1408 /* Got a mode handler?
1409 * This also prevents us bouncing modes we have no handler for.
1416 /* Does the mode require a parameter right now?
1417 * If it does, fetch it if we can
1419 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1422 /* Call the ModeSet method to determine if its set with the
1423 * given parameter here or not.
1425 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1427 /* XXX: Really. Dont ask.
1428 * Determine from if its set combined with what the current
1429 * 'state' is (adding or not) as to wether we should 'invert'
1430 * or 'reinforce' the mode change
1432 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1434 /* Quickly determine if we have 'flipped' from + to -,
1435 * or - to +, to prevent unneccessary +/- chars in the
1436 * output string that waste bandwidth
1438 if (cur_change != old_change)
1439 modebounce += cur_change;
1440 old_change = cur_change;
1442 /* Add the mode character to the output string */
1443 modebounce += mh->GetModeChar();
1445 /* We got a parameter back from ModeHandler::ModeSet,
1446 * are we supposed to be sending one out right now?
1448 if (ret.second.length())
1450 if (mh->GetNumParams(cur_change == '+') > 0)
1451 /* Yes we're supposed to be sending out
1452 * the parameter. Make sure it goes
1454 newparams.push_back(ret.second);
1462 /* Update the parameters for FMODE with the new 'bounced' string */
1463 newparams[2] = modebounce;
1464 /* Only send it back the way it came, no need to send it anywhere else */
1465 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1466 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1470 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1471 /* The server was ulined, but something iffy is up with the TS.
1472 * Sound the alarm bells!
1474 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1476 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());
1478 /* Allow the mode, route it to either server or user command handling */
1480 this->Instance->SendMode(modelist,n,who);
1482 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1484 /* HOT POTATO! PASS IT ON! */
1485 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1487 /* Are we supposed to free the userrec? */
1494 /** FTOPIC command */
1495 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1497 if (params.size() != 4)
1499 time_t ts = atoi(params[1].c_str());
1500 std::string nsource = source;
1502 chanrec* c = this->Instance->FindChan(params[0]);
1505 if ((ts >= c->topicset) || (!*c->topic))
1507 std::string oldtopic = c->topic;
1508 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1509 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1511 /* if the topic text is the same as the current topic,
1512 * dont bother to send the TOPIC command out, just silently
1513 * update the set time and set nick.
1515 if (oldtopic != params[3])
1517 userrec* user = this->Instance->FindNick(source);
1520 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1524 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1525 nsource = user->server;
1527 /* all done, send it on its way */
1528 params[3] = ":" + params[3];
1529 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1538 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1539 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1541 /* 1.1 FJOIN works as follows:
1543 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1544 * timestamp 'wins'. From this point on we will refer to this side as the
1545 * winner. The side with the higher timestamp loses, from this point on we
1546 * will call this side the loser or losing side. This should be familiar to
1547 * anyone who's dealt with dreamforge or TS6 before.
1549 * When two sides of a split heal and this occurs, the following things
1552 * If the timestamps are exactly equal, both sides merge their privilages
1553 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1554 * re-created during a split, this is safe to do.
1557 * If the timestamps are NOT equal, the losing side removes all privilage
1558 * modes from all of its users that currently exist in the channel, before
1559 * introducing new users into the channel which are listed in the FJOIN
1560 * command's parameters. This means, all modes +ohv, and privilages added
1561 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1562 * of the channel to match that of the winning side, and the modes of the
1563 * users of the winning side are merged in with the losing side. The loser
1564 * then sends out a set of FMODE commands which 'confirm' that it just
1565 * removed all privilage modes from its existing users, which allows for
1566 * services packages to still work correctly without needing to know the
1567 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1568 * a problem, and services packages must contain code which explicitly
1569 * behaves as TS6 does, removing ops from the losing side of a split where
1570 * neccessary within its internal records, as this state information is
1571 * not explicitly echoed out in that protocol.
1573 * The winning side on the other hand will ignore all user modes from the
1574 * losing side, so only its own modes get applied. Life is simple for those
1575 * who succeed at internets. :-)
1577 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1578 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1579 * you ask? Well, quite simply because we don't need to. They'll be sent
1580 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1581 * the losing side sends any modes for the channel which shouldnt win,
1582 * they wont as their timestamp will be too high :-)
1585 if (params.size() < 3)
1588 char first[MAXBUF]; /* The first parameter of the mode command */
1589 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1590 char* mode_users[127]; /* The values used by the mode command */
1591 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1592 mode_users[0] = first; /* Set this up to be our on-stack value */
1593 mode_users[1] = modestring; /* Same here as above */
1594 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1595 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1597 userrec* who = NULL; /* User we are currently checking */
1598 std::string channel = params[0]; /* Channel name, as a string */
1599 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1600 bool created = false;
1602 /* Try and find the channel */
1603 chanrec* chan = this->Instance->FindChan(channel);
1605 /* Initialize channel name in the mode parameters */
1606 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1608 /* default TS is a high value, which if we dont have this
1609 * channel will let the other side apply their modes.
1611 time_t ourTS = Instance->Time(true)+600;
1613 /* Does this channel exist? if it does, get its REAL timestamp */
1617 created = true; /* don't perform deops, and set TS to correct time after processing. */
1619 /* In 1.1, if they have the newer channel, we immediately clear
1620 * all status modes from our users. We then accept their modes.
1621 * If WE have the newer channel its the other side's job to do this.
1622 * Note that this causes the losing server to send out confirming
1627 std::deque<std::string> param_list;
1629 /* Lower the TS here */
1630 if (Utils->AnnounceTSChange && chan)
1631 chan->WriteChannelWithServ(Instance->Config->ServerName,
1632 "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
1634 param_list.push_back(channel);
1636 /* Zap all the privilage modes on our side, if the channel exists here */
1639 this->RemoveStatus(Instance->Config->ServerName, param_list);
1644 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1645 irc::tokenstream users(params[2]);
1646 std::string item = "*";
1648 /* do this first, so our mode reversals are correctly received by other servers
1649 * if there is a TS collision.
1651 params[2] = ":" + params[2];
1652 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1654 /* Now, process every 'prefixes,nick' pair */
1657 /* Find next user */
1658 item = users.GetToken();
1660 const char* usr = item.c_str();
1662 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1663 * (is this even possible?) */
1666 const char* permissions = usr;
1668 char* nm = new char[MAXBUF];
1671 /* Iterate through all the prefix values, convert them from prefixes
1672 * to mode letters, and append them to the mode sequence
1674 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1676 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1679 /* This is a valid prefix */
1681 *tnm++ = mh->GetModeChar();
1685 /* Not a valid prefix...
1686 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1688 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1689 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1696 /* Null terminate modes */
1698 /* Advance past the comma, to the nick */
1701 /* Check the user actually exists */
1702 who = this->Instance->FindNick(usr);
1705 /* Did they get any modes? How many times? */
1706 strlcat(modestring, nm, MAXBUF);
1707 for (int k = 0; k < ntimes; k++)
1708 mode_users[modectr++] = strdup(usr);
1710 /* Free temporary buffer used for mode sequence */
1713 /* Check that the user's 'direction' is correct
1714 * based on the server sending the FJOIN. We must
1715 * check each nickname in turn, because the origin of
1716 * the FJOIN may be different to the origin of the nicks
1717 * in the command itself.
1719 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1720 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1722 /* Oh dear oh dear. */
1723 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1726 /* Finally, we can actually place the user into the channel.
1727 * We're sure its right. Final answer, phone a friend.
1729 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1731 /* Have we already queued up MAXMODES modes with parameters
1732 * (+qaohv) ready to be sent to the server?
1734 if (modectr >= (MAXMODES-1))
1736 /* Only actually give the users any status if we lost
1737 * the FJOIN or drew (equal timestamps).
1738 * It isn't actually possible for ourTS to be > TS here,
1739 * only possible to actually have ourTS == TS, or
1740 * ourTS < TS, because if we lost, we already lowered
1741 * our TS above before we entered this loop. We only
1742 * check >= as a safety measure, in case someone stuffed
1743 * up. If someone DID stuff up, it was most likely me.
1744 * Note: I do not like baseball bats in the face...
1748 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1749 this->Instance->SendMode((const char**)mode_users,modectr,who);
1751 /* Something stuffed up, and for some reason, the timestamp is
1752 * NOT lowered right now and should be. Lower it. Usually this
1753 * code won't be executed, doubtless someone will remove it some
1758 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1764 /* Reset all this back to defaults, and
1765 * free any ram we have left allocated.
1767 strcpy(mode_users[1],"+");
1768 for (unsigned int f = 2; f < modectr; f++)
1769 free(mode_users[f]);
1775 /* Remember to free this */
1777 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1778 * We don't try to process the nickname here (that WOULD cause a segfault because
1779 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1780 * in case somehow we're desynched, so that other users which might be able to see
1781 * the nickname get their fair chance to process it.
1783 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1789 /* there werent enough modes built up to flush it during FJOIN,
1790 * or, there are a number left over. flush them out.
1792 if ((modectr > 2) && (who) && (chan))
1796 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1797 this->Instance->SendMode((const char**)mode_users,modectr,who);
1798 /* Yet again, we can't actually get a true value here, if everything else
1799 * is working as it should.
1803 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1809 /* Free anything we have left to free */
1810 for (unsigned int f = 2; f < modectr; f++)
1811 free(mode_users[f]);
1814 /* if we newly created the channel, set it's TS properly. */
1817 /* find created channel .. */
1818 chan = this->Instance->FindChan(channel);
1820 /* w00t said this shouldnt be needed but it is.
1821 * This isnt strictly true, as chan can be NULL
1822 * if a nick collision has occured and therefore
1823 * the channel was never created.
1828 /* All done. That wasnt so bad was it, you can wipe
1829 * the sweat from your forehead now. :-)
1835 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1837 if (params.size() < 8)
1839 if (params.size() > 8)
1841 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1844 // NICK age nick host dhost ident +modes ip :gecos
1846 time_t age = atoi(params[0].c_str());
1848 /* This used to have a pretty craq'y loop doing the same thing,
1849 * now we just let the STL do the hard work (more efficiently)
1851 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1852 if (pos_after_plus != std::string::npos)
1853 params[5] = params[5].substr(pos_after_plus);
1855 const char* tempnick = params[1].c_str();
1856 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1858 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1860 if (iter != this->Instance->clientlist.end())
1863 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);
1864 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1865 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1869 userrec* _new = new userrec(this->Instance);
1870 this->Instance->clientlist[tempnick] = _new;
1871 _new->SetFd(FD_MAGIC_NUMBER);
1872 strlcpy(_new->nick, tempnick,NICKMAX-1);
1873 strlcpy(_new->host, params[2].c_str(),63);
1874 strlcpy(_new->dhost, params[3].c_str(),63);
1875 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1876 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1877 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1878 _new->registered = REG_ALL;
1881 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1882 _new->modes[(*v)-65] = 1;
1884 #ifdef SUPPORT_IP6LINKS
1885 if (params[6].find_first_of(":") != std::string::npos)
1886 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1889 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1891 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1893 params[7] = ":" + params[7];
1894 Utils->DoOneToAllButSender(source,"NICK",params,source);
1896 // Increment the Source Servers User Count..
1897 TreeServer* SourceServer = Utils->FindServer(source);
1900 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1901 SourceServer->AddUserCount();
1904 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1909 /** Send one or more FJOINs for a channel of users.
1910 * If the length of a single line is more than 480-NICKMAX
1911 * in length, it is split over multiple lines.
1913 void SendFJoins(TreeServer* Current, chanrec* c)
1917 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1919 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1921 size_t dlen, curlen;
1922 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1924 char* ptr = list + dlen;
1926 CUList *ulist = c->GetUsers();
1927 std::string modes = "";
1928 std::string params = "";
1930 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1932 // The first parameter gets a : before it
1933 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1940 if (curlen > (480-NICKMAX))
1942 buffer.append(list).append("\r\n");
1944 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1952 buffer.append(list).append("\r\n");
1954 /* Sorry for the hax. Because newly created channels assume +nt,
1955 * if this channel doesnt have +nt, explicitly send -n and -t for the missing modes.
1957 bool inverted = false;
1958 if (!c->IsModeSet('n'))
1963 if (!c->IsModeSet('t'))
1973 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1976 params.append(" ").append(b->data);
1978 if (params.length() >= MAXMODES)
1980 /* Wrap at MAXMODES */
1981 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");
1987 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
1989 /* Only send these if there are any */
1991 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);
1993 this->WriteLine(buffer);
1996 /** Send G, Q, Z and E lines */
1997 void SendXLines(TreeServer* Current)
2001 std::string n = this->Instance->Config->ServerName;
2002 const char* sn = n.c_str();
2004 /* Yes, these arent too nice looking, but they get the job done */
2005 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
2007 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);
2008 buffer.append(data);
2010 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
2012 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);
2013 buffer.append(data);
2015 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
2017 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);
2018 buffer.append(data);
2020 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
2022 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);
2023 buffer.append(data);
2025 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
2027 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);
2028 buffer.append(data);
2030 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
2032 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);
2033 buffer.append(data);
2035 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
2037 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);
2038 buffer.append(data);
2040 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
2042 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);
2043 buffer.append(data);
2046 if (!buffer.empty())
2047 this->WriteLine(buffer);
2050 /** Send channel modes and topics */
2051 void SendChannelModes(TreeServer* Current)
2054 std::deque<std::string> list;
2056 std::string n = this->Instance->Config->ServerName;
2057 const char* sn = n.c_str();
2058 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
2060 SendFJoins(Current, c->second);
2061 if (*c->second->topic)
2063 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2064 this->WriteLine(data);
2066 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2068 c->second->GetExtList(list);
2069 for (unsigned int j = 0; j < list.size(); j++)
2071 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2076 /** send all users and their oper state/modes */
2077 void SendUsers(TreeServer* Current)
2080 std::deque<std::string> list;
2081 std::string dataline;
2083 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2085 if (u->second->registered == REG_ALL)
2087 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);
2088 this->WriteLine(data);
2089 if (*u->second->oper)
2091 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2092 this->WriteLine(data);
2094 if (*u->second->awaymsg)
2096 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2097 this->WriteLine(data);
2099 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2101 u->second->GetExtList(list);
2102 for (unsigned int j = 0; j < list.size(); j++)
2104 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2110 /** This function is called when we want to send a netburst to a local
2111 * server. There is a set order we must do this, because for example
2112 * users require their servers to exist, and channels require their
2113 * users to exist. You get the idea.
2115 void DoBurst(TreeServer* s)
2117 std::string burst = "BURST "+ConvToStr(Instance->Time(true));
2118 std::string endburst = "ENDBURST";
2119 // Because by the end of the netburst, it could be gone!
2120 std::string name = s->GetName();
2121 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2122 this->WriteLine(burst);
2123 /* send our version string */
2124 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2125 /* Send server tree */
2126 this->SendServers(Utils->TreeRoot,s,1);
2127 /* Send users and their oper status */
2129 /* Send everything else (channel modes, xlines etc) */
2130 this->SendChannelModes(s);
2131 this->SendXLines(s);
2132 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2133 this->WriteLine(endburst);
2134 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2137 /** This function is called when we receive data from a remote
2138 * server. We buffer the data in a std::string (it doesnt stay
2139 * there for long), reading using InspSocket::Read() which can
2140 * read up to 16 kilobytes in one operation.
2142 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2143 * THE SOCKET OBJECT FOR US.
2145 virtual bool OnDataReady()
2147 char* data = this->Read();
2148 /* Check that the data read is a valid pointer and it has some content */
2151 this->in_buffer.append(data);
2152 /* While there is at least one new line in the buffer,
2153 * do something useful (we hope!) with it.
2155 while (in_buffer.find("\n") != std::string::npos)
2157 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2158 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2159 /* Use rfind here not find, as theres more
2160 * chance of the \r being near the end of the
2161 * string, not the start.
2163 if (ret.find("\r") != std::string::npos)
2164 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2165 /* Process this one, abort if it
2166 * didnt return true.
2168 if (!this->ProcessLine(ret))
2175 /* EAGAIN returns an empty but non-NULL string, so this
2176 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2178 return (data && !*data);
2181 int WriteLine(std::string line)
2183 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2184 line.append("\r\n");
2185 return this->Write(line);
2188 /* Handle ERROR command */
2189 bool Error(std::deque<std::string> ¶ms)
2191 if (params.size() < 1)
2193 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2194 /* we will return false to cause the socket to close. */
2198 /** remote MOTD. leet, huh? */
2199 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2201 if (params.size() > 0)
2203 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2205 /* It's for our server */
2206 string_list results;
2207 userrec* source = this->Instance->FindNick(prefix);
2211 std::deque<std::string> par;
2212 par.push_back(prefix);
2215 if (!Instance->Config->MOTD.size())
2217 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2218 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2222 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2223 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2225 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2227 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2228 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2231 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2232 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2238 userrec* source = this->Instance->FindNick(prefix);
2240 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2246 /** remote ADMIN. leet, huh? */
2247 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2249 if (params.size() > 0)
2251 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2253 /* It's for our server */
2254 string_list results;
2255 userrec* source = this->Instance->FindNick(prefix);
2259 std::deque<std::string> par;
2260 par.push_back(prefix);
2263 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2264 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2266 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2267 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2269 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2270 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2272 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2273 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2279 userrec* source = this->Instance->FindNick(prefix);
2281 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2287 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2289 /* Get the reply to a STATS query if it matches this servername,
2290 * and send it back as a load of PUSH queries
2292 if (params.size() > 1)
2294 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2296 /* It's for our server */
2297 string_list results;
2298 userrec* source = this->Instance->FindNick(prefix);
2301 std::deque<std::string> par;
2302 par.push_back(prefix);
2304 DoStats(this->Instance, *(params[0].c_str()), source, results);
2305 for (size_t i = 0; i < results.size(); i++)
2307 par[1] = "::" + results[i];
2308 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2315 userrec* source = this->Instance->FindNick(prefix);
2317 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2324 /** Because the core won't let users or even SERVERS set +o,
2325 * we use the OPERTYPE command to do this.
2327 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2329 if (params.size() != 1)
2331 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2334 std::string opertype = params[0];
2335 userrec* u = this->Instance->FindNick(prefix);
2338 u->modes[UM_OPERATOR] = 1;
2339 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2340 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2345 /** Because Andy insists that services-compatible servers must
2346 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2348 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2350 if (params.size() < 3)
2353 userrec* u = this->Instance->FindNick(params[0]);
2357 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2360 std::deque<std::string> par;
2361 par.push_back(params[1]);
2362 /* This is not required as one is sent in OnUserPostNick below
2364 //Utils->DoOneToMany(u->nick,"NICK",par);
2365 if (!u->ForceNickChange(params[1].c_str()))
2367 userrec::QuitUser(this->Instance, u, "Nickname collision");
2370 u->age = atoi(params[2].c_str());
2377 * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
2378 * then let that server do the dirty work (squit it!). Example:
2379 * 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
2381 bool RemoteSquit(const std::string &prefix, std::deque<std::string> ¶ms)
2383 /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
2384 if (params.size() < 2)
2387 TreeServer* s = Utils->FindServerMask(params[0]);
2391 if (s == Utils->TreeRoot)
2393 this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
2397 TreeSocket* sock = s->GetSocket();
2401 /* it's locally connected, KILL IT! */
2402 Instance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
2403 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());
2404 sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
2405 Instance->SE->DelFd(sock);
2411 /* route the rsquit */
2412 params[1] = ":" + params[1];
2413 Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
2418 /* mother fucker! it doesn't exist */
2424 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2426 if (params.size() < 2)
2429 userrec* u = this->Instance->FindNick(params[0]);
2433 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2434 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2439 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2441 if (params.size() < 1)
2444 std::string servermask = params[0];
2446 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2448 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2449 this->Instance->RehashServer();
2450 Utils->ReadConfiguration(false);
2451 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2453 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2457 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2459 if (params.size() != 2)
2462 std::string nick = params[0];
2463 userrec* u = this->Instance->FindNick(prefix);
2464 userrec* who = this->Instance->FindNick(nick);
2468 /* Prepend kill source, if we don't have one */
2469 std::string sourceserv = prefix;
2472 sourceserv = u->server;
2474 if (*(params[1].c_str()) != '[')
2476 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2478 std::string reason = params[1];
2479 params[1] = ":" + params[1];
2480 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2481 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2482 userrec::QuitUser(this->Instance,who,reason);
2487 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2489 if (params.size() < 1)
2492 if (params.size() == 1)
2494 TreeServer* ServerSource = Utils->FindServer(prefix);
2497 ServerSource->SetPingFlag();
2502 std::string forwardto = params[1];
2503 if (forwardto == this->Instance->Config->ServerName)
2506 * this is a PONG for us
2507 * if the prefix is a user, check theyre local, and if they are,
2508 * dump the PONG reply back to their fd. If its a server, do nowt.
2509 * Services might want to send these s->s, but we dont need to yet.
2511 userrec* u = this->Instance->FindNick(prefix);
2515 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2520 // not for us, pass it on :)
2521 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2528 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2530 if (params.size() < 3)
2533 TreeServer* ServerSource = Utils->FindServer(prefix);
2537 if (params[0] == "*")
2539 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2541 else if (*(params[0].c_str()) == '#')
2543 chanrec* c = this->Instance->FindChan(params[0]);
2546 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2549 else if (*(params[0].c_str()) != '#')
2551 userrec* u = this->Instance->FindNick(params[0]);
2554 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2559 params[2] = ":" + params[2];
2560 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2564 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2566 if (params.size() < 1)
2569 TreeServer* ServerSource = Utils->FindServer(prefix);
2573 ServerSource->SetVersion(params[0]);
2575 params[0] = ":" + params[0];
2576 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2580 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2582 if (params.size() < 1)
2585 userrec* u = this->Instance->FindNick(prefix);
2589 u->ChangeDisplayedHost(params[0].c_str());
2590 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2595 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2597 if (params.size() < 6)
2600 bool propogate = false;
2602 switch (*(params[0].c_str()))
2605 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2606 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2609 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2610 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2613 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2614 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2617 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2618 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2621 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2624 /* Just in case... */
2625 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2630 /* Send it on its way */
2633 if (atoi(params[4].c_str()))
2635 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());
2639 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());
2641 params[5] = ":" + params[5];
2642 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2644 if (!this->bursting)
2646 Instance->Log(DEBUG,"Applying lines...");
2647 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2652 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2654 if (params.size() < 1)
2657 userrec* u = this->Instance->FindNick(prefix);
2661 u->ChangeName(params[0].c_str());
2662 params[0] = ":" + params[0];
2663 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2668 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2670 if (params.size() < 1)
2673 Instance->Log(DEBUG,"In IDLE command");
2674 userrec* u = this->Instance->FindNick(prefix);
2678 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2679 // an incoming request
2680 if (params.size() == 1)
2682 userrec* x = this->Instance->FindNick(params[0]);
2683 if ((x) && (IS_LOCAL(x)))
2685 userrec* x = this->Instance->FindNick(params[0]);
2686 char signon[MAXBUF];
2689 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2690 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
2691 std::deque<std::string> par;
2692 par.push_back(prefix);
2693 par.push_back(signon);
2694 par.push_back(idle);
2695 // ours, we're done, pass it BACK
2696 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2700 // not ours pass it on
2701 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2704 else if (params.size() == 3)
2706 std::string who_did_the_whois = params[0];
2707 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2708 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2710 // an incoming reply to a whois we sent out
2711 std::string nick_whoised = prefix;
2712 unsigned long signon = atoi(params[1].c_str());
2713 unsigned long idle = atoi(params[2].c_str());
2714 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2715 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2719 // not ours, pass it on
2720 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2727 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2729 if (params.size() < 2)
2732 userrec* u = this->Instance->FindNick(params[0]);
2739 u->Write(params[1]);
2743 // continue the raw onwards
2744 params[1] = ":" + params[1];
2745 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2750 bool HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
2752 if (!params.size() || !Utils->EnableTimeSync)
2757 if ((params.size() == 2) && (params[1] == "FORCE"))
2760 time_t rts = atoi(params[0].c_str());
2761 time_t us = Instance->Time(true);
2765 Instance->Log(DEBUG, "Timestamp from %s is equal", prefix.c_str());
2767 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2769 else if (force || (rts < us))
2771 int old = Instance->SetTimeDelta(rts - us);
2772 Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
2774 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2778 Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
2780 std::deque<std::string> oparams;
2781 oparams.push_back(ConvToStr(us));
2783 Utils->DoOneToMany(prefix, "TIMESET", oparams);
2789 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2791 // :source.server TIME remote.server sendernick
2792 // :remote.server TIME source.server sendernick TS
2793 if (params.size() == 2)
2795 // someone querying our time?
2796 if (this->Instance->Config->ServerName == params[0])
2798 userrec* u = this->Instance->FindNick(params[1]);
2801 params.push_back(ConvToStr(Instance->Time(false)));
2803 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2808 // not us, pass it on
2809 userrec* u = this->Instance->FindNick(params[1]);
2811 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2814 else if (params.size() == 3)
2816 // a response to a previous TIME
2817 userrec* u = this->Instance->FindNick(params[1]);
2818 if ((u) && (IS_LOCAL(u)))
2820 time_t rawtime = atol(params[2].c_str());
2821 struct tm * timeinfo;
2822 timeinfo = localtime(&rawtime);
2824 snprintf(tms,26,"%s",asctime(timeinfo));
2826 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2831 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2837 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2839 if (params.size() < 1)
2842 if (params.size() == 1)
2844 std::string stufftobounce = params[0];
2845 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2850 std::string forwardto = params[1];
2851 if (forwardto == this->Instance->Config->ServerName)
2853 // this is a ping for us, send back PONG to the requesting server
2854 params[1] = params[0];
2855 params[0] = forwardto;
2856 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2860 // not for us, pass it on :)
2861 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2867 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2869 if (params.size() < 1)
2872 chanrec* c = Instance->FindChan(params[0]);
2876 irc::modestacker modestack(false);
2877 CUList *ulist = c->GetUsers();
2879 std::deque<std::string> stackresult;
2882 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2884 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2885 if (modesequence.length())
2887 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2888 irc::spacesepstream sep(modesequence);
2889 std::string modeletters = sep.GetToken();
2890 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2892 while (!modeletters.empty())
2894 char mletter = *(modeletters.begin());
2895 modestack.Push(mletter,sep.GetToken());
2896 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2897 modeletters.erase(modeletters.begin());
2898 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2903 while (modestack.GetStackedLine(stackresult))
2905 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2906 stackresult.push_front(ConvToStr(c->age));
2907 stackresult.push_front(c->name);
2908 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2909 stackresult.erase(stackresult.begin() + 1);
2910 Instance->Log(DEBUG,"Stacked items:");
2911 for (size_t z = 0; z < stackresult.size(); z++)
2913 y[z] = stackresult[z].c_str();
2914 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2916 userrec* n = new userrec(Instance);
2917 n->SetFd(FD_MAGIC_NUMBER);
2918 Instance->SendMode(y, stackresult.size(), n);
2925 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2927 if (params.size() < 4)
2930 std::string servername = params[0];
2931 std::string password = params[1];
2932 // hopcount is not used for a remote server, we calculate this ourselves
2933 std::string description = params[3];
2934 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2938 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2941 TreeServer* CheckDupe = Utils->FindServer(servername);
2944 this->WriteLine("ERROR :Server "+servername+" already exists!");
2945 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2948 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2949 ParentOfThis->AddChild(Node);
2950 params[3] = ":" + params[3];
2951 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2952 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2956 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2958 if (params.size() < 4)
2961 irc::string servername = params[0].c_str();
2962 std::string sname = params[0];
2963 std::string password = params[1];
2964 int hops = atoi(params[2].c_str());
2968 this->WriteLine("ERROR :Server too far away for authentication");
2969 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2972 std::string description = params[3];
2973 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2975 if ((x->Name == servername) && (x->RecvPass == password))
2977 TreeServer* CheckDupe = Utils->FindServer(sname);
2980 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2981 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2984 // Begin the sync here. this kickstarts the
2985 // other side, waiting in WAIT_AUTH_2 state,
2986 // into starting their burst, as it shows
2987 // that we're happy.
2988 this->LinkState = CONNECTED;
2989 // we should add the details of this server now
2990 // to the servers tree, as a child of the root
2992 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
2993 Utils->TreeRoot->AddChild(Node);
2994 params[3] = ":" + params[3];
2995 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
2996 this->bursting = true;
2997 this->DoBurst(Node);
3001 this->WriteLine("ERROR :Invalid credentials");
3002 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3006 bool Inbound_Server(std::deque<std::string> ¶ms)
3008 if (params.size() < 4)
3011 irc::string servername = params[0].c_str();
3012 std::string sname = params[0];
3013 std::string password = params[1];
3014 int hops = atoi(params[2].c_str());
3018 this->WriteLine("ERROR :Server too far away for authentication");
3019 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
3022 std::string description = params[3];
3023 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3025 if ((x->Name == servername) && (x->RecvPass == password))
3027 TreeServer* CheckDupe = Utils->FindServer(sname);
3030 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
3031 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
3034 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
3035 this->InboundServerName = sname;
3036 this->InboundDescription = description;
3037 // this is good. Send our details: Our server name and description and hopcount of 0,
3038 // along with the sendpass from this block.
3039 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
3040 // move to the next state, we are now waiting for THEM.
3041 this->LinkState = WAIT_AUTH_2;
3045 this->WriteLine("ERROR :Invalid credentials");
3046 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3050 void Split(const std::string &line, std::deque<std::string> &n)
3053 irc::tokenstream tokens(line);
3055 while ((param = tokens.GetToken()) != "")
3060 bool ProcessLine(std::string &line)
3062 std::deque<std::string> params;
3063 irc::string command;
3066 line = line.substr(0, line.find_first_of("\r\n"));
3071 Instance->Log(DEBUG,"IN: %s", line.c_str());
3073 this->Split(line.c_str(),params);
3075 if ((params[0][0] == ':') && (params.size() > 1))
3077 prefix = params[0].substr(1);
3081 command = params[0].c_str();
3084 switch (this->LinkState)
3089 // Waiting for SERVER command from remote server. Server initiating
3090 // the connection sends the first SERVER command, listening server
3091 // replies with theirs if its happy, then if the initiator is happy,
3092 // it starts to send its net sync, which starts the merge, otherwise
3093 // it sends an ERROR.
3094 if (command == "PASS")
3096 /* Silently ignored */
3098 else if (command == "SERVER")
3100 return this->Inbound_Server(params);
3102 else if (command == "ERROR")
3104 return this->Error(params);
3106 else if (command == "USER")
3108 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3111 else if (command == "CAPAB")
3113 return this->Capab(params);
3115 else if ((command == "U") || (command == "S"))
3117 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3122 std::string error("ERROR :Invalid command in negotiation phase: ");
3123 error.append(command.c_str());
3124 this->WriteLine(error);
3129 // Waiting for start of other side's netmerge to say they liked our
3131 if (command == "SERVER")
3133 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3137 else if ((command == "U") || (command == "S"))
3139 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3142 else if (command == "BURST")
3144 if (params.size() && Utils->EnableTimeSync)
3146 /* If a time stamp is provided, apply synchronization */
3148 time_t them = atoi(params[0].c_str());
3149 time_t us = Instance->Time(true);
3150 int delta = them - us;
3152 if ((params.size() == 2) && (params[1] == "FORCE"))
3155 if ((delta < -600) || (delta > 600))
3157 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));
3158 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3164 this->Instance->Log(DEBUG, "Timestamps are equal; pat yourself on the back");
3166 else if (force || (us > them))
3168 this->Instance->Log(DEBUG, "Remote server has lower TS (%d seconds)", them - us);
3169 this->Instance->SetTimeDelta(them - us);
3170 // Send this new timestamp to any other servers
3171 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
3175 // Override the timestamp
3176 this->Instance->Log(DEBUG, "We have a higher timestamp (by %d seconds), not updating delta", us - them);
3177 this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
3180 this->LinkState = CONNECTED;
3181 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3182 Utils->TreeRoot->AddChild(Node);
3184 params.push_back(InboundServerName);
3185 params.push_back("*");
3186 params.push_back("1");
3187 params.push_back(":"+InboundDescription);
3188 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3189 this->bursting = true;
3190 this->DoBurst(Node);
3192 else if (command == "ERROR")
3194 return this->Error(params);
3196 else if (command == "CAPAB")
3198 return this->Capab(params);
3203 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3207 if (command == "SERVER")
3209 // another server we connected to, which was in WAIT_AUTH_1 state,
3210 // has just sent us their credentials. If we get this far, theyre
3211 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3212 // if we're happy with this, we should send our netburst which
3213 // kickstarts the merge.
3214 return this->Outbound_Reply_Server(params);
3216 else if (command == "ERROR")
3218 return this->Error(params);
3222 // This is the 'authenticated' state, when all passwords
3223 // have been exchanged and anything past this point is taken
3228 std::string direction = prefix;
3229 userrec* t = this->Instance->FindNick(prefix);
3232 direction = t->server;
3234 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3235 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3237 if (route_back_again)
3238 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3243 * When there is activity on the socket, reset the ping counter so
3244 * that we're not wasting bandwidth pinging an active server.
3246 route_back_again->SetNextPingTime(time(NULL) + 60);
3247 route_back_again->SetPingFlag();
3250 if (command == "SVSMODE")
3252 /* Services expects us to implement
3253 * SVSMODE. In inspircd its the same as
3258 std::string target = "";
3259 /* Yes, know, this is a mess. Its reasonably fast though as we're
3260 * working with std::string here.
3262 if ((command == "NICK") && (params.size() > 1))
3264 return this->IntroduceClient(prefix,params);
3266 else if (command == "FJOIN")
3268 return this->ForceJoin(prefix,params);
3270 else if (command == "STATS")
3272 return this->Stats(prefix, params);
3274 else if (command == "MOTD")
3276 return this->Motd(prefix, params);
3278 else if (command == "ADMIN")
3280 return this->Admin(prefix, params);
3282 else if (command == "SERVER")
3284 return this->RemoteServer(prefix,params);
3286 else if (command == "ERROR")
3288 return this->Error(params);
3290 else if (command == "OPERTYPE")
3292 return this->OperType(prefix,params);
3294 else if (command == "FMODE")
3296 return this->ForceMode(prefix,params);
3298 else if (command == "KILL")
3300 return this->RemoteKill(prefix,params);
3302 else if (command == "FTOPIC")
3304 return this->ForceTopic(prefix,params);
3306 else if (command == "REHASH")
3308 return this->RemoteRehash(prefix,params);
3310 else if (command == "METADATA")
3312 return this->MetaData(prefix,params);
3314 else if (command == "REMSTATUS")
3316 return this->RemoveStatus(prefix,params);
3318 else if (command == "PING")
3321 * We just got a ping from a server that's bursting.
3322 * This can't be right, so set them to not bursting, and
3323 * apply their lines.
3327 this->bursting = false;
3328 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3332 prefix = this->GetName();
3334 return this->LocalPing(prefix,params);
3336 else if (command == "PONG")
3339 * We just got a pong from a server that's bursting.
3340 * This can't be right, so set them to not bursting, and
3341 * apply their lines.
3345 this->bursting = false;
3346 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3350 prefix = this->GetName();
3352 return this->LocalPong(prefix,params);
3354 else if (command == "VERSION")
3356 return this->ServerVersion(prefix,params);
3358 else if (command == "FHOST")
3360 return this->ChangeHost(prefix,params);
3362 else if (command == "FNAME")
3364 return this->ChangeName(prefix,params);
3366 else if (command == "ADDLINE")
3368 return this->AddLine(prefix,params);
3370 else if (command == "SVSNICK")
3374 prefix = this->GetName();
3376 return this->ForceNick(prefix,params);
3378 else if (command == "RSQUIT")
3380 return this->RemoteSquit(prefix, params);
3382 else if (command == "IDLE")
3384 return this->Whois(prefix,params);
3386 else if (command == "PUSH")
3388 return this->Push(prefix,params);
3390 else if (command == "TIMESET")
3392 return this->HandleSetTime(prefix, params);
3394 else if (command == "TIME")
3396 return this->Time(prefix,params);
3398 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3400 std::string sourceserv = this->myhost;
3401 if (params.size() == 3)
3403 userrec* user = this->Instance->FindNick(params[1]);
3404 chanrec* chan = this->Instance->FindChan(params[0]);
3407 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3408 /* Yikes, the channels gone! */
3412 if (this->InboundServerName != "")
3414 sourceserv = this->InboundServerName;
3416 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3418 else if (command == "SVSJOIN")
3422 prefix = this->GetName();
3424 return this->ServiceJoin(prefix,params);
3426 else if (command == "SQUIT")
3428 if (params.size() == 2)
3430 this->Squit(Utils->FindServer(params[0]),params[1]);
3434 else if (command == "OPERNOTICE")
3436 std::string sourceserv = this->myhost;
3438 if (this->InboundServerName != "")
3439 sourceserv = this->InboundServerName;
3441 if (params.size() >= 1)
3442 Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
3444 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3446 else if (command == "MODENOTICE")
3448 std::string sourceserv = this->myhost;
3449 if (this->InboundServerName != "")
3450 sourceserv = this->InboundServerName;
3451 if (params.size() >= 2)
3453 Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
3456 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3458 else if (command == "SNONOTICE")
3460 std::string sourceserv = this->myhost;
3461 if (this->InboundServerName != "")
3462 sourceserv = this->InboundServerName;
3463 if (params.size() >= 2)
3465 Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
3468 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3470 else if (command == "ENDBURST")
3472 this->bursting = false;
3473 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3474 std::string sourceserv = this->myhost;
3475 if (this->InboundServerName != "")
3477 sourceserv = this->InboundServerName;
3479 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3481 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
3482 rmode.Send(Instance);
3488 // not a special inter-server command.
3489 // Emulate the actual user doing the command,
3490 // this saves us having a huge ugly parser.
3491 userrec* who = this->Instance->FindNick(prefix);
3492 std::string sourceserv = this->myhost;
3493 if (this->InboundServerName != "")
3495 sourceserv = this->InboundServerName;
3497 if ((!who) && (command == "MODE"))
3499 if (Utils->IsServer(prefix))
3501 const char* modelist[127];
3502 for (size_t i = 0; i < params.size(); i++)
3503 modelist[i] = params[i].c_str();
3505 userrec* fake = new userrec(Instance);
3506 fake->SetFd(FD_MAGIC_NUMBER);
3508 this->Instance->SendMode(modelist, params.size(), fake);
3512 /* Hot potato! pass it on! */
3513 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3518 if ((command == "NICK") && (params.size() > 0))
3520 /* On nick messages, check that the nick doesnt
3521 * already exist here. If it does, kill their copy,
3524 userrec* x = this->Instance->FindNick(params[0]);
3525 if ((x) && (x != who))
3527 std::deque<std::string> p;
3528 p.push_back(params[0]);
3529 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3530 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3532 p.push_back(prefix);
3533 p.push_back("Nickname collision");
3534 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3535 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3536 userrec* y = this->Instance->FindNick(prefix);
3539 userrec::QuitUser(this->Instance,y,"Nickname collision");
3541 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3545 target = who->server;
3546 const char* strparams[127];
3547 for (unsigned int q = 0; q < params.size(); q++)
3549 strparams[q] = params[q].c_str();
3551 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3554 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3561 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3567 // its not a user. Its either a server, or somethings screwed up.
3568 if (Utils->IsServer(prefix))
3570 target = this->Instance->Config->ServerName;
3574 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3578 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3587 virtual std::string GetName()
3589 std::string sourceserv = this->myhost;
3590 if (this->InboundServerName != "")
3592 sourceserv = this->InboundServerName;
3597 virtual void OnTimeout()
3599 if (this->LinkState == CONNECTING)
3601 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3602 Link* MyLink = Utils->FindLink(myhost);
3604 Utils->DoFailOver(MyLink);
3608 virtual void OnClose()
3610 // Connection closed.
3611 // If the connection is fully up (state CONNECTED)
3612 // then propogate a netsplit to all peers.
3613 std::string quitserver = this->myhost;
3614 if (this->InboundServerName != "")
3616 quitserver = this->InboundServerName;
3618 TreeServer* s = Utils->FindServer(quitserver);
3621 Squit(s,"Remote host closed the connection");
3624 if (quitserver != "")
3625 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3628 virtual int OnIncomingConnection(int newsock, char* ip)
3630 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3631 * or discovering if this port is the server port, we don't allow connections from any
3632 * IPs for which we don't have a link block.
3636 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3639 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3640 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3645 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3651 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
3653 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3658 /** This class is used to resolve server hostnames during /connect and autoconnect.
3659 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3660 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3661 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3662 * will have an IP address which we can then use to continue our connection.
3664 class ServernameResolver : public Resolver
3667 /** A copy of the Link tag info for what we're connecting to.
3668 * We take a copy, rather than using a pointer, just in case the
3669 * admin takes the tag away and rehashes while the domain is resolving.
3672 SpanningTreeUtilities* Utils;
3674 ServernameResolver(Module* me, SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(Util)
3676 /* Nothing in here, folks */
3679 void OnLookupComplete(const std::string &result)
3681 /* Initiate the connection, now that we have an IP to use.
3682 * Passing a hostname directly to InspSocket causes it to
3683 * just bail and set its FD to -1.
3685 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3686 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3689 if ((!MyLink.Hook.empty()) && (Utils->hooks.find(MyLink.Hook.c_str()) == Utils->hooks.end()))
3692 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str(),
3693 MyLink.Hook.empty() ? NULL : Utils->hooks[MyLink.Hook.c_str()]);
3694 if (newsocket->GetFd() > -1)
3700 /* Something barfed, show the opers */
3701 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3703 Utils->DoFailOver(&MyLink);
3708 void OnError(ResolverError e, const std::string &errormessage)
3711 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3712 Utils->DoFailOver(&MyLink);
3716 /** Handle resolving of server IPs for the cache
3718 class SecurityIPResolver : public Resolver
3722 SpanningTreeUtilities* Utils;
3724 SecurityIPResolver(Module* me, SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(U)
3728 void OnLookupComplete(const std::string &result)
3730 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3731 Utils->ValidIPs.push_back(result);
3734 void OnError(ResolverError e, const std::string &errormessage)
3736 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3740 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3744 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3746 modulelist* ml = ServerInstance->FindInterface("InspSocketHook");
3748 /* Did we find any modules? */
3751 /* Yes, enumerate them all to find out the hook name */
3752 for (modulelist::iterator m = ml->begin(); m != ml->end(); m++)
3754 /* Make a request to it for its name, its implementing
3755 * InspSocketHook so we know its safe to do this
3757 std::string name = InspSocketNameRequest((Module*)Creator, *m).Send();
3758 /* Build a map of them */
3759 hooks[name.c_str()] = *m;
3760 hooknames.push_back(name);
3761 ServerInstance->Log(DEBUG, "Found InspSocketHook interface: '%s' -> '%08x'", name.c_str(), *m);
3765 this->ReadConfiguration(true);
3768 SpanningTreeUtilities::~SpanningTreeUtilities()
3770 for (unsigned int i = 0; i < Bindings.size(); i++)
3772 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3773 ServerInstance->SE->DelFd(Bindings[i]);
3774 Bindings[i]->Close();
3775 DELETE(Bindings[i]);
3777 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3778 while (TreeRoot->ChildCount())
3780 TreeServer* child_server = TreeRoot->GetChild(0);
3781 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3784 TreeSocket* sock = child_server->GetSocket();
3785 ServerInstance->SE->DelFd(sock);
3793 void SpanningTreeUtilities::AddThisServer(TreeServer* server, TreeServerList &list)
3795 if (list.find(server) == list.end())
3796 list[server] = server;
3799 /** returns a list of DIRECT servernames for a specific channel */
3800 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list)
3806 ulist = c->GetOppedUsers();
3809 ulist = c->GetHalfoppedUsers();
3812 ulist = c->GetVoicedUsers();
3815 ulist = c->GetUsers();
3818 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3820 if ((i->second->GetFd() < 0) && (exempt_list.find(i->second) == exempt_list.end()))
3822 TreeServer* best = this->BestRouteTo(i->second->server);
3824 AddThisServer(best,list);
3830 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3833 TreeServer* omitroute = this->BestRouteTo(omit);
3834 if ((command == "NOTICE") || (command == "PRIVMSG"))
3836 if (params.size() >= 2)
3839 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3842 params[0] = params[0].substr(1, params[0].length()-1);
3844 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3846 // special routing for private messages/notices
3847 userrec* d = ServerInstance->FindNick(params[0]);
3850 std::deque<std::string> par;
3851 par.push_back(params[0]);
3852 par.push_back(":"+params[1]);
3853 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3857 else if (*(params[0].c_str()) == '$')
3859 std::deque<std::string> par;
3860 par.push_back(params[0]);
3861 par.push_back(":"+params[1]);
3862 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3867 chanrec* c = ServerInstance->FindChan(params[0]);
3868 userrec* u = ServerInstance->FindNick(prefix);
3872 TreeServerList list;
3873 FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist));
3874 GetListOfServersForChannel(c,list,pfx,elist);
3876 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
3878 TreeSocket* Sock = i->second->GetSocket();
3879 if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second))
3881 Sock->WriteLine(data);
3889 unsigned int items =this->TreeRoot->ChildCount();
3890 for (unsigned int x = 0; x < items; x++)
3892 TreeServer* Route = this->TreeRoot->GetChild(x);
3893 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3895 TreeSocket* Sock = Route->GetSocket();
3897 Sock->WriteLine(data);
3903 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3905 TreeServer* omitroute = this->BestRouteTo(omit);
3906 std::string FullLine = ":" + prefix + " " + command;
3907 unsigned int words = params.size();
3908 for (unsigned int x = 0; x < words; x++)
3910 FullLine = FullLine + " " + params[x];
3912 unsigned int items = this->TreeRoot->ChildCount();
3913 for (unsigned int x = 0; x < items; x++)
3915 TreeServer* Route = this->TreeRoot->GetChild(x);
3916 // Send the line IF:
3917 // The route has a socket (its a direct connection)
3918 // The route isnt the one to be omitted
3919 // The route isnt the path to the one to be omitted
3920 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3922 TreeSocket* Sock = Route->GetSocket();
3924 Sock->WriteLine(FullLine);
3930 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3932 std::string FullLine = ":" + prefix + " " + command;
3933 unsigned int words = params.size();
3934 for (unsigned int x = 0; x < words; x++)
3936 FullLine = FullLine + " " + params[x];
3938 unsigned int items = this->TreeRoot->ChildCount();
3939 for (unsigned int x = 0; x < items; x++)
3941 TreeServer* Route = this->TreeRoot->GetChild(x);
3942 if (Route && Route->GetSocket())
3944 TreeSocket* Sock = Route->GetSocket();
3946 Sock->WriteLine(FullLine);
3952 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3954 std::string spfx = prefix;
3955 std::string scmd = command;
3956 return this->DoOneToMany(spfx, scmd, params);
3959 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3961 std::string spfx = prefix;
3962 std::string scmd = command;
3963 return this->DoOneToAllButSender(spfx, scmd, params, omit);
3966 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
3968 TreeServer* Route = this->BestRouteTo(target);
3971 std::string FullLine = ":" + prefix + " " + command;
3972 unsigned int words = params.size();
3973 for (unsigned int x = 0; x < words; x++)
3975 FullLine = FullLine + " " + params[x];
3977 if (Route && Route->GetSocket())
3979 TreeSocket* Sock = Route->GetSocket();
3981 Sock->WriteLine(FullLine);
3991 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
3993 ConfigReader* Conf = new ConfigReader(ServerInstance);
3996 for (int j =0; j < Conf->Enumerate("bind"); j++)
3998 std::string Type = Conf->ReadValue("bind","type",j);
3999 std::string IP = Conf->ReadValue("bind","address",j);
4000 std::string Port = Conf->ReadValue("bind","port",j);
4001 std::string transport = Conf->ReadValue("bind","transport",j);
4002 if (Type == "servers")
4004 irc::portparser portrange(Port, false);
4006 while ((portno = portrange.GetToken()))
4008 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), portno);
4012 if ((!transport.empty()) && (hooks.find(transport.c_str()) == hooks.end()))
4014 ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for port %s:%s - maybe you forgot\
4015 to load it BEFORE m_spanningtree in your config file?",
4016 transport.c_str(), IP.c_str(), Port.c_str());
4020 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(), portno, true, 10, transport.empty() ? NULL : hooks[transport.c_str()]);
4021 if (listener->GetState() == I_LISTENING)
4023 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), portno);
4024 Bindings.push_back(listener);
4028 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %s:%d",IP.c_str(), portno);
4032 ServerInstance->Log(DEBUG,"Done with this binding");
4037 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
4038 HideULines = Conf->ReadFlag("options","hideulines",0);
4039 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
4040 EnableTimeSync = !(Conf->ReadFlag("options","notimesync",0));
4043 for (int j =0; j < Conf->Enumerate("link"); j++)
4046 std::string Allow = Conf->ReadValue("link","allowmask",j);
4047 L.Name = (Conf->ReadValue("link","name",j)).c_str();
4048 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
4049 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
4050 L.Port = Conf->ReadInteger("link","port",j,true);
4051 L.SendPass = Conf->ReadValue("link","sendpass",j);
4052 L.RecvPass = Conf->ReadValue("link","recvpass",j);
4053 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
4054 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
4055 L.Timeout = Conf->ReadInteger("link","timeout",j,true);
4056 L.Hook = Conf->ReadValue("link", "transport", j);
4057 L.NextConnectTime = time(NULL) + L.AutoConnect;
4058 /* Bugfix by brain, do not allow people to enter bad configurations */
4059 if (L.Name != ServerInstance->Config->ServerName)
4061 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
4063 ValidIPs.push_back(L.IPAddr);
4066 ValidIPs.push_back(Allow);
4068 /* Needs resolving */
4070 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
4074 SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L);
4075 ServerInstance->AddResolver(sr);
4077 catch (ModuleException& e)
4079 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4083 LinkBlocks.push_back(L);
4084 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
4090 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
4092 else if (L.RecvPass == "")
4094 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
4096 else if (L.SendPass == "")
4098 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
4100 else if (L.Name == "")
4102 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
4106 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
4112 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
4118 /** To create a timer which recurs every second, we inherit from InspTimer.
4119 * InspTimer is only one-shot however, so at the end of each Tick() we simply
4120 * insert another of ourselves into the pending queue :)
4122 class TimeSyncTimer : public InspTimer
4126 ModuleSpanningTree *Module;
4128 TimeSyncTimer(InspIRCd *Instance, ModuleSpanningTree *Mod);
4129 virtual void Tick(time_t TIME);
4132 HandshakeTimer::HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u) : InspTimer(1, time(NULL)), Instance(Inst), sock(s), lnk(l), Utils(u)
4134 thefd = sock->GetFd();
4137 void HandshakeTimer::Tick(time_t TIME)
4139 if (Instance->SE->GetRef(thefd) == sock)
4141 if (sock->GetHook() && InspSocketHSCompleteRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send())
4143 Instance->Log(DEBUG,"Handshake timer activated, sending SERVER and/or CAPAB");
4144 InspSocketAttachCertRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send();
4145 sock->SendCapabilities();
4146 if (sock->GetLinkState() == CONNECTING)
4148 sock->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+lnk->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
4153 Instance->Timers->AddTimer(new HandshakeTimer(Instance, sock, lnk, Utils));
4158 class ModuleSpanningTree : public Module
4162 unsigned int max_local;
4163 unsigned int max_global;
4164 cmd_rconnect* command_rconnect;
4165 SpanningTreeUtilities* Utils;
4168 TimeSyncTimer *SyncTimer;
4170 ModuleSpanningTree(InspIRCd* Me)
4171 : Module::Module(Me), max_local(0), max_global(0)
4173 Utils = new SpanningTreeUtilities(Me, this);
4175 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
4176 ServerInstance->AddCommand(command_rconnect);
4178 if (Utils->EnableTimeSync)
4180 SyncTimer = new TimeSyncTimer(ServerInstance, this);
4181 ServerInstance->Timers->AddTimer(SyncTimer);
4187 void ShowLinks(TreeServer* Current, userrec* user, int hops)
4189 std::string Parent = Utils->TreeRoot->GetName();
4190 if (Current->GetParent())
4192 Parent = Current->GetParent()->GetName();
4194 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4196 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4200 ShowLinks(Current->GetChild(q),user,hops+1);
4205 ShowLinks(Current->GetChild(q),user,hops+1);
4208 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
4209 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
4211 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());
4214 int CountLocalServs()
4216 return Utils->TreeRoot->ChildCount();
4221 return Utils->serverlist.size();
4224 void HandleLinks(const char** parameters, int pcnt, userrec* user)
4226 ShowLinks(Utils->TreeRoot,user,0);
4227 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
4231 void HandleLusers(const char** parameters, int pcnt, userrec* user)
4233 unsigned int n_users = ServerInstance->UserCount();
4235 /* Only update these when someone wants to see them, more efficient */
4236 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
4237 max_local = ServerInstance->LocalUserCount();
4238 if (n_users > max_global)
4239 max_global = n_users;
4241 unsigned int ulined_count = 0;
4242 unsigned int ulined_local_count = 0;
4244 /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
4245 * locally and globally (locally means directly connected to us)
4247 if ((Utils->HideULines) && (!*user->oper))
4249 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
4251 if (ServerInstance->ULine(q->second->GetName().c_str()))
4254 if (q->second->GetParent() == Utils->TreeRoot)
4255 ulined_local_count++;
4260 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());
4261 if (ServerInstance->OperCount())
4262 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
4263 if (ServerInstance->UnregisteredUserCount())
4264 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
4265 if (ServerInstance->ChannelCount())
4266 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
4267 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());
4268 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
4269 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
4273 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
4275 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4279 for (int t = 0; t < depth; t++)
4281 matrix[line][t] = ' ';
4284 // For Aligning, we need to work out exactly how deep this thing is, and produce
4285 // a 'Spacer' String to compensate.
4288 memset(spacer,' ',40);
4289 if ((40 - Current->GetName().length() - depth) > 1) {
4290 spacer[40 - Current->GetName().length() - depth] = '\0';
4299 if (ServerInstance->clientlist.size() == 0) {
4300 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4305 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
4307 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4308 totusers += Current->GetUserCount();
4310 strlcpy(&matrix[line][depth],text,80);
4312 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4314 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4318 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4323 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4329 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4333 /* Remote MOTD, the server is within the 1st parameter */
4334 std::deque<std::string> params;
4335 params.push_back(parameters[0]);
4337 /* Send it out remotely, generate no reply yet */
4338 TreeServer* s = Utils->FindServerMask(parameters[0]);
4341 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4345 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4352 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4356 /* Remote ADMIN, the server is within the 1st parameter */
4357 std::deque<std::string> params;
4358 params.push_back(parameters[0]);
4360 /* Send it out remotely, generate no reply yet */
4361 TreeServer* s = Utils->FindServerMask(parameters[0]);
4364 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4368 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4375 int HandleStats(const char** parameters, int pcnt, userrec* user)
4379 /* Remote STATS, the server is within the 2nd parameter */
4380 std::deque<std::string> params;
4381 params.push_back(parameters[0]);
4382 params.push_back(parameters[1]);
4383 /* Send it out remotely, generate no reply yet */
4384 TreeServer* s = Utils->FindServerMask(parameters[1]);
4387 params[1] = s->GetName();
4388 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4392 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4399 // Ok, prepare to be confused.
4400 // After much mulling over how to approach this, it struck me that
4401 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4402 // keeping track of a ton of ascii characters, and line by line
4403 // under recursion working out where to place them using multiplications
4404 // and divisons, we instead render the map onto a backplane of characters
4405 // (a character matrix), then draw the branches as a series of "L" shapes
4406 // from the nodes. This is not only friendlier on CPU it uses less stack.
4408 void HandleMap(const char** parameters, int pcnt, userrec* user)
4410 // This array represents a virtual screen which we will
4411 // "scratch" draw to, as the console device of an irc
4412 // client does not provide for a proper terminal.
4414 float totservers = 0;
4415 char matrix[128][80];
4416 for (unsigned int t = 0; t < 128; t++)
4418 matrix[t][0] = '\0';
4421 // The only recursive bit is called here.
4422 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4423 // Process each line one by one. The algorithm has a limit of
4424 // 128 servers (which is far more than a spanning tree should have
4425 // anyway, so we're ok). This limit can be raised simply by making
4426 // the character matrix deeper, 128 rows taking 10k of memory.
4427 for (int l = 1; l < line; l++)
4429 // scan across the line looking for the start of the
4430 // servername (the recursive part of the algorithm has placed
4431 // the servers at indented positions depending on what they
4433 int first_nonspace = 0;
4434 while (matrix[l][first_nonspace] == ' ')
4439 // Draw the `- (corner) section: this may be overwritten by
4440 // another L shape passing along the same vertical pane, becoming
4441 // a |- (branch) section instead.
4442 matrix[l][first_nonspace] = '-';
4443 matrix[l][first_nonspace-1] = '`';
4445 // Draw upwards until we hit the parent server, causing possibly
4446 // other corners (`-) to become branches (|-)
4447 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4449 matrix[l2][first_nonspace-1] = '|';
4453 // dump the whole lot to the user. This is the easy bit, honest.
4454 for (int t = 0; t < line; t++)
4456 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4458 float avg_users = totusers / totservers;
4459 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);
4460 user->WriteServ("007 %s :End of /MAP",user->nick);
4464 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4466 TreeServer* s = Utils->FindServerMask(parameters[0]);
4469 if (s == Utils->TreeRoot)
4471 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4474 TreeSocket* sock = s->GetSocket();
4477 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4478 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4479 sock->Squit(s,std::string("Server quit by ") + user->GetFullRealHost());
4480 ServerInstance->SE->DelFd(sock);
4487 std::deque<std::string> params;
4488 params.push_back(parameters[0]);
4489 params.push_back(std::string(":Server quit by ") + user->GetFullRealHost());
4490 Utils->DoOneToOne(user->nick, "RSQUIT", params, parameters[0]);
4495 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4500 int HandleTime(const char** parameters, int pcnt, userrec* user)
4502 if ((IS_LOCAL(user)) && (pcnt))
4504 TreeServer* found = Utils->FindServerMask(parameters[0]);
4507 // we dont' override for local server
4508 if (found == Utils->TreeRoot)
4511 std::deque<std::string> params;
4512 params.push_back(found->GetName());
4513 params.push_back(user->nick);
4514 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4518 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4524 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4526 if ((IS_LOCAL(user)) && (pcnt > 1))
4528 userrec* remote = ServerInstance->FindNick(parameters[1]);
4529 if ((remote) && (remote->GetFd() < 0))
4531 std::deque<std::string> params;
4532 params.push_back(parameters[1]);
4533 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4538 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4539 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4546 void DoPingChecks(time_t curtime)
4548 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4550 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4551 TreeSocket* sock = serv->GetSocket();
4554 if (curtime >= serv->NextPingTime())
4556 if (serv->AnsweredLastPing())
4558 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4559 serv->SetNextPingTime(curtime + 60);
4563 // they didnt answer, boot them
4564 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4565 sock->Squit(serv,"Ping timeout");
4566 ServerInstance->SE->DelFd(sock);
4576 void ConnectServer(Link* x)
4580 /* Do we already have an IP? If so, no need to resolve it. */
4581 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4583 /* Gave a hook, but it wasnt one we know */
4584 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
4587 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()]);
4588 if (newsocket->GetFd() > -1)
4590 /* Handled automatically on success */
4594 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4596 Utils->DoFailOver(x);
4603 ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x);
4604 ServerInstance->AddResolver(snr);
4606 catch (ModuleException& e)
4608 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4609 Utils->DoFailOver(x);
4614 void AutoConnectServers(time_t curtime)
4616 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4618 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4620 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4621 x->NextConnectTime = curtime + x->AutoConnect;
4622 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4623 if (x->FailOver.length())
4625 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4628 /* The failover for this server is currently a member of the network.
4629 * The failover probably succeeded, where the main link did not.
4630 * Don't try the main link until the failover is gone again.
4637 // an autoconnected server is not connected. Check if its time to connect it
4638 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4639 this->ConnectServer(&(*x));
4645 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4647 // we've already checked if pcnt > 0, so this is safe
4648 TreeServer* found = Utils->FindServerMask(parameters[0]);
4651 std::string Version = found->GetVersion();
4652 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4653 if (found == Utils->TreeRoot)
4655 std::stringstream out(ServerInstance->Config->data005);
4656 std::string token = "";
4657 std::string line5 = "";
4658 int token_counter = 0;
4663 line5 = line5 + token + " ";
4666 if ((token_counter >= 13) || (out.eof() == true))
4668 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4677 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4682 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4684 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4686 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4688 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4691 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);
4692 ConnectServer(&(*x));
4697 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());
4702 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4706 void BroadcastTimeSync()
4708 std::deque<std::string> params;
4709 params.push_back(ConvToStr(ServerInstance->Time(true)));
4710 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
4713 virtual int OnStats(char statschar, userrec* user, string_list &results)
4715 if ((statschar == 'c') || (statschar == 'n'))
4717 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4719 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');
4720 if (statschar == 'c')
4721 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4723 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4724 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);
4730 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4732 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4736 if (command == "CONNECT")
4738 return this->HandleConnect(parameters,pcnt,user);
4740 else if (command == "STATS")
4742 return this->HandleStats(parameters,pcnt,user);
4744 else if (command == "MOTD")
4746 return this->HandleMotd(parameters,pcnt,user);
4748 else if (command == "ADMIN")
4750 return this->HandleAdmin(parameters,pcnt,user);
4752 else if (command == "SQUIT")
4754 return this->HandleSquit(parameters,pcnt,user);
4756 else if (command == "MAP")
4758 this->HandleMap(parameters,pcnt,user);
4761 else if ((command == "TIME") && (pcnt > 0))
4763 return this->HandleTime(parameters,pcnt,user);
4765 else if (command == "LUSERS")
4767 this->HandleLusers(parameters,pcnt,user);
4770 else if (command == "LINKS")
4772 this->HandleLinks(parameters,pcnt,user);
4775 else if (command == "WHOIS")
4780 return this->HandleRemoteWhois(parameters,pcnt,user);
4783 else if ((command == "VERSION") && (pcnt > 0))
4785 this->HandleVersion(parameters,pcnt,user);
4792 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4794 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4796 // this bit of code cleverly routes all module commands
4797 // to all remote severs *automatically* so that modules
4798 // can just handle commands locally, without having
4799 // to have any special provision in place for remote
4800 // commands and linking protocols.
4801 std::deque<std::string> params;
4803 for (int j = 0; j < pcnt; j++)
4805 if (strchr(parameters[j],' '))
4807 params.push_back(":" + std::string(parameters[j]));
4811 params.push_back(std::string(parameters[j]));
4814 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4815 Utils->DoOneToMany(user->nick,command,params);
4819 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4821 TreeServer* s = Utils->FindServer(servername);
4824 description = s->GetDesc();
4828 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4830 if (IS_LOCAL(source))
4832 std::deque<std::string> params;
4833 params.push_back(dest->nick);
4834 params.push_back(channel->name);
4835 Utils->DoOneToMany(source->nick,"INVITE",params);
4839 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4841 std::deque<std::string> params;
4842 params.push_back(chan->name);
4843 params.push_back(":"+topic);
4844 Utils->DoOneToMany(user->nick,"TOPIC",params);
4847 virtual void OnWallops(userrec* user, const std::string &text)
4851 std::deque<std::string> params;
4852 params.push_back(":"+text);
4853 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4857 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4859 if (target_type == TYPE_USER)
4861 userrec* d = (userrec*)dest;
4862 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4864 std::deque<std::string> params;
4866 params.push_back(d->nick);
4867 params.push_back(":"+text);
4868 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4871 else if (target_type == TYPE_CHANNEL)
4875 chanrec *c = (chanrec*)dest;
4878 std::string cname = c->name;
4880 cname = status + cname;
4881 TreeServerList list;
4882 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4884 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4886 TreeSocket* Sock = i->second->GetSocket();
4888 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4893 else if (target_type == TYPE_SERVER)
4897 char* target = (char*)dest;
4898 std::deque<std::string> par;
4899 par.push_back(target);
4900 par.push_back(":"+text);
4901 Utils->DoOneToMany(user->nick,"NOTICE",par);
4906 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4908 if (target_type == TYPE_USER)
4910 // route private messages which are targetted at clients only to the server
4911 // which needs to receive them
4912 userrec* d = (userrec*)dest;
4913 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4915 std::deque<std::string> params;
4917 params.push_back(d->nick);
4918 params.push_back(":"+text);
4919 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4922 else if (target_type == TYPE_CHANNEL)
4926 chanrec *c = (chanrec*)dest;
4929 std::string cname = c->name;
4931 cname = status + cname;
4932 TreeServerList list;
4933 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4935 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4937 TreeSocket* Sock = i->second->GetSocket();
4939 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4944 else if (target_type == TYPE_SERVER)
4948 char* target = (char*)dest;
4949 std::deque<std::string> par;
4950 par.push_back(target);
4951 par.push_back(":"+text);
4952 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4957 virtual void OnBackgroundTimer(time_t curtime)
4959 AutoConnectServers(curtime);
4960 DoPingChecks(curtime);
4963 virtual void OnUserJoin(userrec* user, chanrec* channel)
4965 // Only do this for local users
4968 std::deque<std::string> params;
4970 params.push_back(channel->name);
4971 // set up their permissions and the channel TS with FJOIN.
4972 // All users are FJOINed now, because a module may specify
4973 // new joining permissions for the user.
4975 params.push_back(channel->name);
4976 params.push_back(ConvToStr(channel->age));
4977 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4978 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4979 if (channel->GetUserCounter() == 1)
4981 /* First user in, sync the modes for the channel */
4983 /* This is safe, all inspircd servers default to +nt */
4984 params.push_back("+nt");
4985 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
4990 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4992 // only occurs for local clients
4993 if (user->registered != REG_ALL)
4995 std::deque<std::string> params;
4996 params.push_back(newhost);
4997 Utils->DoOneToMany(user->nick,"FHOST",params);
5000 virtual void OnChangeName(userrec* user, const std::string &gecos)
5002 // only occurs for local clients
5003 if (user->registered != REG_ALL)
5005 std::deque<std::string> params;
5006 params.push_back(gecos);
5007 Utils->DoOneToMany(user->nick,"FNAME",params);
5010 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
5014 std::deque<std::string> params;
5015 params.push_back(channel->name);
5016 if (partmessage != "")
5017 params.push_back(":"+partmessage);
5018 Utils->DoOneToMany(user->nick,"PART",params);
5022 virtual void OnUserConnect(userrec* user)
5024 char agestr[MAXBUF];
5027 std::deque<std::string> params;
5028 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
5029 params.push_back(agestr);
5030 params.push_back(user->nick);
5031 params.push_back(user->host);
5032 params.push_back(user->dhost);
5033 params.push_back(user->ident);
5034 params.push_back("+"+std::string(user->FormatModes()));
5035 params.push_back(user->GetIPString());
5036 params.push_back(":"+std::string(user->fullname));
5037 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
5039 // User is Local, change needs to be reflected!
5040 TreeServer* SourceServer = Utils->FindServer(user->server);
5043 SourceServer->AddUserCount();
5049 virtual void OnUserQuit(userrec* user, const std::string &reason)
5051 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5053 std::deque<std::string> params;
5054 params.push_back(":"+reason);
5055 Utils->DoOneToMany(user->nick,"QUIT",params);
5057 // Regardless, We need to modify the user Counts..
5058 TreeServer* SourceServer = Utils->FindServer(user->server);
5061 SourceServer->DelUserCount();
5066 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
5070 std::deque<std::string> params;
5071 params.push_back(user->nick);
5072 Utils->DoOneToMany(oldnick,"NICK",params);
5076 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
5078 if ((source) && (IS_LOCAL(source)))
5080 std::deque<std::string> params;
5081 params.push_back(chan->name);
5082 params.push_back(user->nick);
5083 params.push_back(":"+reason);
5084 Utils->DoOneToMany(source->nick,"KICK",params);
5088 std::deque<std::string> params;
5089 params.push_back(chan->name);
5090 params.push_back(user->nick);
5091 params.push_back(":"+reason);
5092 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
5096 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
5098 std::deque<std::string> params;
5099 params.push_back(dest->nick);
5100 params.push_back(":"+reason);
5101 Utils->DoOneToMany(source->nick,"KILL",params);
5104 virtual void OnRehash(const std::string ¶meter)
5106 if (parameter != "")
5108 std::deque<std::string> params;
5109 params.push_back(parameter);
5110 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
5112 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
5114 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
5115 ServerInstance->RehashServer();
5118 Utils->ReadConfiguration(false);
5121 // note: the protocol does not allow direct umode +o except
5122 // via NICK with 8 params. sending OPERTYPE infers +o modechange
5124 virtual void OnOper(userrec* user, const std::string &opertype)
5128 std::deque<std::string> params;
5129 params.push_back(opertype);
5130 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
5134 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
5138 /* Server-set lines */
5140 snprintf(data,MAXBUF,"%c %s %s %lu %lu :%s", linetype, host.c_str(), ServerInstance->Config->ServerName, (unsigned long)ServerInstance->Time(false),
5141 (unsigned long)duration, reason.c_str());
5142 std::deque<std::string> params;
5143 params.push_back(data);
5144 Utils->DoOneToMany(ServerInstance->Config->ServerName, "ADDLINE", params);
5148 if (IS_LOCAL(source))
5151 snprintf(type,8,"%cLINE",linetype);
5152 std::string stype = type;
5155 char sduration[MAXBUF];
5156 snprintf(sduration,MAXBUF,"%ld",duration);
5157 std::deque<std::string> params;
5158 params.push_back(host);
5159 params.push_back(sduration);
5160 params.push_back(":"+reason);
5161 Utils->DoOneToMany(source->nick,stype,params);
5165 std::deque<std::string> params;
5166 params.push_back(host);
5167 Utils->DoOneToMany(source->nick,stype,params);
5173 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5175 OnLine(source,hostmask,true,'G',duration,reason);
5178 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
5180 OnLine(source,ipmask,true,'Z',duration,reason);
5183 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
5185 OnLine(source,nickmask,true,'Q',duration,reason);
5188 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5190 OnLine(source,hostmask,true,'E',duration,reason);
5193 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
5195 OnLine(source,hostmask,false,'G',0,"");
5198 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
5200 OnLine(source,ipmask,false,'Z',0,"");
5203 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
5205 OnLine(source,nickmask,false,'Q',0,"");
5208 virtual void OnDelELine(userrec* source, const std::string &hostmask)
5210 OnLine(source,hostmask,false,'E',0,"");
5213 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
5215 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5217 if (target_type == TYPE_USER)
5219 userrec* u = (userrec*)dest;
5220 std::deque<std::string> params;
5221 params.push_back(u->nick);
5222 params.push_back(text);
5223 Utils->DoOneToMany(user->nick,"MODE",params);
5227 chanrec* c = (chanrec*)dest;
5228 std::deque<std::string> params;
5229 params.push_back(c->name);
5230 params.push_back(text);
5231 Utils->DoOneToMany(user->nick,"MODE",params);
5236 virtual void OnSetAway(userrec* user)
5240 std::deque<std::string> params;
5241 params.push_back(":"+std::string(user->awaymsg));
5242 Utils->DoOneToMany(user->nick,"AWAY",params);
5246 virtual void OnCancelAway(userrec* user)
5250 std::deque<std::string> params;
5252 Utils->DoOneToMany(user->nick,"AWAY",params);
5256 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
5258 TreeSocket* s = (TreeSocket*)opaque;
5261 if (target_type == TYPE_USER)
5263 userrec* u = (userrec*)target;
5264 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
5268 chanrec* c = (chanrec*)target;
5269 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
5274 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
5276 TreeSocket* s = (TreeSocket*)opaque;
5279 if (target_type == TYPE_USER)
5281 userrec* u = (userrec*)target;
5282 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
5284 else if (target_type == TYPE_CHANNEL)
5286 chanrec* c = (chanrec*)target;
5287 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
5290 if (target_type == TYPE_OTHER)
5292 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
5296 virtual void OnEvent(Event* event)
5298 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
5300 if (event->GetEventID() == "send_metadata")
5302 if (params->size() < 3)
5304 (*params)[2] = ":" + (*params)[2];
5305 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
5307 else if (event->GetEventID() == "send_topic")
5309 if (params->size() < 2)
5311 (*params)[1] = ":" + (*params)[1];
5312 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
5313 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
5314 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5316 else if (event->GetEventID() == "send_mode")
5318 if (params->size() < 2)
5320 // Insert the TS value of the object, either userrec or chanrec
5322 userrec* a = ServerInstance->FindNick((*params)[0]);
5329 chanrec* a = ServerInstance->FindChan((*params)[0]);
5335 params->insert(params->begin() + 1,ConvToStr(ourTS));
5336 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5338 else if (event->GetEventID() == "send_mode_explicit")
5340 if (params->size() < 2)
5342 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
5344 else if (event->GetEventID() == "send_opers")
5346 if (params->size() < 1)
5348 (*params)[0] = ":" + (*params)[0];
5349 Utils->DoOneToMany(ServerInstance->Config->ServerName,"OPERNOTICE",*params);
5351 else if (event->GetEventID() == "send_modeset")
5353 if (params->size() < 2)
5355 (*params)[1] = ":" + (*params)[1];
5356 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODENOTICE",*params);
5358 else if (event->GetEventID() == "send_snoset")
5360 if (params->size() < 2)
5362 (*params)[1] = ":" + (*params)[1];
5363 Utils->DoOneToMany(ServerInstance->Config->ServerName,"SNONOTICE",*params);
5365 else if (event->GetEventID() == "send_push")
5367 if (params->size() < 2)
5370 userrec *a = ServerInstance->FindNick((*params)[0]);
5375 (*params)[1] = ":" + (*params)[1];
5376 Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
5380 virtual ~ModuleSpanningTree()
5382 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5383 /* This will also free the listeners */
5386 ServerInstance->Timers->DelTimer(SyncTimer);
5389 virtual Version GetVersion()
5391 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5394 void Implements(char* List)
5396 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5397 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5398 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5399 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5400 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5401 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5402 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5405 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5406 * so that any activity it sees is FINAL, e.g. we arent going to send out
5407 * a NICK message before m_cloaking has finished putting the +x on the user,
5409 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5410 * the module call queue.
5412 Priority Prioritize()
5414 return PRIORITY_LAST;
5418 TimeSyncTimer::TimeSyncTimer(InspIRCd *Inst, ModuleSpanningTree *Mod) : InspTimer(43200, Inst->Time()), Instance(Inst), Module(Mod)
5422 void TimeSyncTimer::Tick(time_t TIME)
5424 Module->BroadcastTimeSync();
5425 Module->SyncTimer = new TimeSyncTimer(Instance, Module);
5426 Instance->Timers->AddTimer(Module->SyncTimer);
5429 void SpanningTreeUtilities::DoFailOver(Link* x)
5431 if (x->FailOver.length())
5433 if (x->FailOver == x->Name)
5435 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());
5438 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5441 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5442 Creator->ConnectServer(TryThisOne);
5446 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5451 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5453 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5455 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5463 class ModuleSpanningTreeFactory : public ModuleFactory
5466 ModuleSpanningTreeFactory()
5470 ~ModuleSpanningTreeFactory()
5474 virtual Module * CreateModule(InspIRCd* Me)
5476 return new ModuleSpanningTree(Me);
5482 extern "C" void * init_module( void )
5484 return new ModuleSpanningTreeFactory;