1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
19 #include "configreader.h"
23 #include "commands/cmd_whois.h"
24 #include "commands/cmd_stats.h"
31 /** If you make a change which breaks the protocol, increment this.
32 * If you completely change the protocol, completely change the number.
34 const long ProtocolVersion = 1101;
37 * The server list in InspIRCd is maintained as two structures
38 * which hold the data in different ways. Most of the time, we
39 * want to very quicky obtain three pieces of information:
41 * (1) The information on a server
42 * (2) The information on the server we must send data through
43 * to actually REACH the server we're after
44 * (3) Potentially, the child/parent objects of this server
46 * The InspIRCd spanning protocol provides easy access to these
47 * by storing the data firstly in a recursive structure, where
48 * each item references its parent item, and a dynamic list
49 * of child items, and another structure which stores the items
50 * hashed, linearly. This means that if we want to find a server
51 * by name quickly, we can look it up in the hash, avoiding
52 * any O(n) lookups. If however, during a split or sync, we want
53 * to apply an operation to a server, and any of its child objects
54 * we can resort to recursion to walk the tree structure.
55 * Any socket can have one of five states at any one time.
56 * The LISTENER state indicates a socket which is listening
57 * for connections. It cannot receive data itself, only incoming
59 * The CONNECTING state indicates an outbound socket which is
60 * waiting to be writeable.
61 * The WAIT_AUTH_1 state indicates the socket is outbound and
62 * has successfully connected, but has not yet sent and received
64 * The WAIT_AUTH_2 state indicates that the socket is inbound
65 * (allocated by a LISTENER) but has not yet sent and received
67 * The CONNECTED state represents a fully authorized, fully
70 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
72 /* Foward declarations */
76 class ModuleSpanningTree;
78 /* This hash_map holds the hash equivalent of the server
79 * tree, used for rapid linear lookups.
81 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
84 /** The Link class might as well be a struct,
85 * but this is C++ and we don't believe in structs (!).
86 * It holds the entire information of one <link>
87 * tag from the main config file. We maintain a list
88 * of them, and populate the list on rehash/load.
90 class Link : public classbase
98 unsigned long AutoConnect;
99 time_t NextConnectTime;
100 std::string EncryptionKey;
101 bool HiddenFromStats;
102 std::string FailOver;
105 /** Contains helper functions and variables for this module,
106 * and keeps them out of the global namespace
108 class SpanningTreeUtilities
113 InspIRCd* ServerInstance;
117 ModuleSpanningTree* Creator;
118 /** Flatten links and /MAP for non-opers
121 /** Hide U-Lined servers in /MAP and /LINKS
124 /** Announce TS changes to channels on merge
126 bool AnnounceTSChange;
127 /** Socket bindings for listening sockets
129 std::vector<TreeSocket*> Bindings;
130 /** This variable represents the root of the server tree
132 TreeServer *TreeRoot;
133 /** IPs allowed to link to us
135 std::vector<std::string> ValidIPs;
136 /** Hash of currently connected servers by name
138 server_hash serverlist;
139 /** Holds the data from the <link> tags in the conf
141 std::vector<Link> LinkBlocks;
143 /** Initialise utility class
145 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
146 /** Destroy class and free listeners etc
148 ~SpanningTreeUtilities();
149 /** Send a message from this server to one other local or remote
151 bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
152 /** Send a message from this server to all but one other, local or remote
154 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
155 /** Send a message from this server to all but one other, local or remote
157 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
158 /** Send a message from this server to all others
160 bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
161 /** Send a message from this server to all others
163 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
164 /** 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)
166 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
167 /** Read the spanningtree module's tags from the config file
169 void ReadConfiguration(bool rebind);
170 /** Add a server to the server list for GetListOfServersForChannel
172 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list);
173 /** Compile a list of servers which contain members of channel c
175 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list);
176 /** Find a server by name
178 TreeServer* FindServer(const std::string &ServerName);
179 /** Find a route to a server by name
181 TreeServer* BestRouteTo(const std::string &ServerName);
182 /** Find a server by glob mask
184 TreeServer* FindServerMask(const std::string &ServerName);
185 /** Returns true if this is a server name we recognise
187 bool IsServer(const std::string &ServerName);
188 /** Attempt to connect to the failover link of link x
190 void DoFailOver(Link* x);
191 /** Find a link tag from a server name
193 Link* FindLink(const std::string& name);
197 /** Each server in the tree is represented by one class of
198 * type TreeServer. A locally connected TreeServer can
199 * have a class of type TreeSocket associated with it, for
200 * remote servers, the TreeSocket entry will be NULL.
201 * Each server also maintains a pointer to its parent
202 * (NULL if this server is ours, at the top of the tree)
203 * and a pointer to its "Route" (see the comments in the
204 * constructors below), and also a dynamic list of pointers
205 * to its children which can be iterated recursively
206 * if required. Creating or deleting objects of type
207 i* TreeServer automatically maintains the hash_map of
208 * TreeServer items, deleting and inserting them as they
209 * are created and destroyed.
211 class TreeServer : public classbase
213 InspIRCd* ServerInstance; /* Creator */
214 TreeServer* Parent; /* Parent entry */
215 TreeServer* Route; /* Route entry */
216 std::vector<TreeServer*> Children; /* List of child objects */
217 irc::string ServerName; /* Server's name */
218 std::string ServerDesc; /* Server's description */
219 std::string VersionString; /* Version string or empty string */
220 int UserCount; /* Not used in this version */
221 int OperCount; /* Not used in this version */
222 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
223 time_t NextPing; /* After this time, the server should be PINGed*/
224 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
225 SpanningTreeUtilities* Utils; /* Utility class */
229 /** We don't use this constructor. Its a dummy, and won't cause any insertion
230 * of the TreeServer into the hash_map. See below for the two we DO use.
232 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
238 UserCount = OperCount = 0;
239 VersionString = ServerInstance->GetVersionString();
242 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
243 * represents our own server. Therefore, it has no route, no parent, and
244 * no socket associated with it. Its version string is our own local version.
246 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
250 UserCount = ServerInstance->UserCount();
251 OperCount = ServerInstance->OperCount();
252 VersionString = ServerInstance->GetVersionString();
254 Socket = NULL; /* Fix by brain */
258 /** When we create a new server, we call this constructor to initialize it.
259 * This constructor initializes the server's Route and Parent, and sets up
260 * its ping counters so that it will be pinged one minute from now.
262 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
263 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
266 UserCount = OperCount = 0;
267 this->SetNextPingTime(time(NULL) + 60);
270 /* find the 'route' for this server (e.g. the one directly connected
271 * to the local server, which we can use to reach it)
273 * In the following example, consider we have just added a TreeServer
274 * class for server G on our network, of which we are server A.
275 * To route traffic to G (marked with a *) we must send the data to
276 * B (marked with a +) so this algorithm initializes the 'Route'
277 * value to point at whichever server traffic must be routed through
278 * to get here. If we were to try this algorithm with server B,
279 * the Route pointer would point at its own object ('this').
289 * We only run this algorithm when a server is created, as
290 * the routes remain constant while ever the server exists, and
291 * do not need to be re-calculated.
295 if (Route == Utils->TreeRoot)
301 while (this->Route->GetParent() != Utils->TreeRoot)
303 this->Route = Route->GetParent();
307 /* Because recursive code is slow and takes a lot of resources,
308 * we store two representations of the server tree. The first
309 * is a recursive structure where each server references its
310 * children and its parent, which is used for netbursts and
311 * netsplits to dump the whole dataset to the other server,
312 * and the second is used for very fast lookups when routing
313 * messages and is instead a hash_map, where each item can
314 * be referenced by its server name. The AddHashEntry()
315 * call below automatically inserts each TreeServer class
316 * into the hash_map as it is created. There is a similar
317 * maintainance call in the destructor to tidy up deleted
321 this->AddHashEntry();
324 int QuitUsers(const std::string &reason)
326 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
327 const char* reason_s = reason.c_str();
328 std::vector<userrec*> time_to_die;
329 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
331 if (!strcmp(n->second->server, this->ServerName.c_str()))
333 time_to_die.push_back(n->second);
336 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
338 userrec* a = (userrec*)*n;
339 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
341 userrec::QuitUser(ServerInstance,a,reason_s);
343 return time_to_die.size();
346 /** This method is used to add the structure to the
347 * hash_map for linear searches. It is only called
348 * by the constructors.
352 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
353 if (iter == Utils->serverlist.end())
354 Utils->serverlist[this->ServerName.c_str()] = this;
357 /** This method removes the reference to this object
358 * from the hash_map which is used for linear searches.
359 * It is only called by the default destructor.
363 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
364 if (iter != Utils->serverlist.end())
365 Utils->serverlist.erase(iter);
368 /** These accessors etc should be pretty self-
371 TreeServer* GetRoute()
376 std::string GetName()
378 return ServerName.c_str();
381 std::string GetDesc()
386 std::string GetVersion()
388 return VersionString;
391 void SetNextPingTime(time_t t)
394 LastPingWasGood = false;
397 time_t NextPingTime()
402 bool AnsweredLastPing()
404 return LastPingWasGood;
409 LastPingWasGood = true;
432 TreeSocket* GetSocket()
437 TreeServer* GetParent()
442 void SetVersion(const std::string &Version)
444 VersionString = Version;
447 unsigned int ChildCount()
449 return Children.size();
452 TreeServer* GetChild(unsigned int n)
454 if (n < Children.size())
456 /* Make sure they cant request
457 * an out-of-range object. After
458 * all we know what these programmer
459 * types are like *grin*.
469 void AddChild(TreeServer* Child)
471 Children.push_back(Child);
474 bool DelChild(TreeServer* Child)
476 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
487 /** Removes child nodes of this node, and of that node, etc etc.
488 * This is used during netsplits to automatically tidy up the
489 * server tree. It is slow, we don't use it for much else.
493 bool stillchildren = true;
494 while (stillchildren)
496 stillchildren = false;
497 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
499 TreeServer* s = (TreeServer*)*a;
503 stillchildren = true;
512 /* We'd better tidy up after ourselves, eh? */
513 this->DelHashEntry();
517 /** Yay for fast searches!
518 * This is hundreds of times faster than recursion
519 * or even scanning a linked list, especially when
520 * there are more than a few servers to deal with.
523 TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
525 server_hash::iterator iter;
526 iter = serverlist.find(ServerName.c_str());
527 if (iter != serverlist.end())
537 /** Returns the locally connected server we must route a
538 * message through to reach server 'ServerName'. This
539 * only applies to one-to-one and not one-to-many routing.
540 * See the comments for the constructor of TreeServer
543 TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
545 if (ServerName.c_str() == TreeRoot->GetName())
547 TreeServer* Found = FindServer(ServerName);
550 return Found->GetRoute();
558 /** Find the first server matching a given glob mask.
559 * Theres no find-using-glob method of hash_map [awwww :-(]
560 * so instead, we iterate over the list using an iterator
561 * and match each one until we get a hit. Yes its slow,
564 TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
566 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
568 if (match(i->first.c_str(),ServerName.c_str()))
574 /* A convenient wrapper that returns true if a server exists */
575 bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
577 return (FindServer(ServerName) != NULL);
583 class cmd_rconnect : public command_t
586 SpanningTreeUtilities* Utils;
588 cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
590 this->source = "m_spanningtree.so";
591 syntax = "<remote-server-mask> <servermask>";
594 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
596 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
597 /* Is this aimed at our server? */
598 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
600 /* Yes, initiate the given connect */
601 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
603 para[0] = parameters[1];
604 std::string original_command = std::string("CONNECT ") + parameters[1];
605 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
616 /** Every SERVER connection inbound or outbound is represented by
617 * an object of type TreeSocket.
618 * TreeSockets, being inherited from InspSocket, can be tied into
619 * the core socket engine, and we cn therefore receive activity events
620 * for them, just like activex objects on speed. (yes really, that
621 * is a technical term!) Each of these which relates to a locally
622 * connected server is assocated with it, by hooking it onto a
623 * TreeSocket class using its constructor. In this way, we can
624 * maintain a list of servers, some of which are directly connected,
625 * some of which are not.
627 class TreeSocket : public InspSocket
629 SpanningTreeUtilities* Utils;
631 std::string in_buffer;
632 ServerState LinkState;
633 std::string InboundServerName;
634 std::string InboundDescription;
636 int num_lost_servers;
638 bool LastPingWasGood;
642 unsigned int keylength;
643 std::string ModuleList;
644 std::map<std::string,std::string> CapKeys;
648 /** Because most of the I/O gubbins are encapsulated within
649 * InspSocket, we just call the superclass constructor for
650 * most of the action, and append a few of our own values
653 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
654 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
657 this->LinkState = LISTENER;
659 this->ctx_out = NULL;
662 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
663 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
666 this->LinkState = CONNECTING;
668 this->ctx_out = NULL;
671 /** When a listening socket gives us a new file descriptor,
672 * we must associate it with a socket without creating a new
673 * connection. This constructor is used for this purpose.
675 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip)
676 : InspSocket(SI, newfd, ip), Utils(Util)
678 this->LinkState = WAIT_AUTH_1;
680 this->ctx_out = NULL;
681 this->SendCapabilities();
692 void InitAES(std::string key,std::string SName)
699 Instance->Log(DEBUG,"Initialized AES key %s",key.c_str());
700 // key must be 16, 24, 32 etc bytes (multiple of 8)
701 keylength = key.length();
702 if (!(keylength == 16 || keylength == 24 || keylength == 32))
704 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
705 Instance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
709 if (this->GetState() != I_ERROR)
711 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
712 ctx_in->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
713 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
714 ctx_out->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
715 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
720 /** When an outbound connection finishes connecting, we receive
721 * this event, and must send our SERVER string to the other
722 * side. If the other side is happy, as outlined in the server
723 * to server docs on the inspircd.org site, the other side
724 * will then send back its own server string.
726 virtual bool OnConnected()
728 if (this->LinkState == CONNECTING)
730 /* we do not need to change state here. */
731 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
733 if (x->Name == this->myhost)
735 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
736 this->SendCapabilities();
737 if (x->EncryptionKey != "")
739 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
741 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
745 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
746 this->InitAES(x->EncryptionKey,x->Name.c_str());
749 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
750 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
755 /* There is a (remote) chance that between the /CONNECT and the connection
756 * being accepted, some muppet has removed the <link> block and rehashed.
757 * If that happens the connection hangs here until it's closed. Unlikely
758 * and rather harmless.
760 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
764 virtual void OnError(InspSocketError e)
766 /* We don't handle this method, because all our
767 * dirty work is done in OnClose() (see below)
768 * which is still called on error conditions too.
770 if (e == I_ERR_CONNECT)
772 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
773 Link* MyLink = Utils->FindLink(myhost);
775 Utils->DoFailOver(MyLink);
779 virtual int OnDisconnect()
781 /* For the same reason as above, we don't
782 * handle OnDisconnect()
787 /** Recursively send the server tree with distances as hops.
788 * This is used during network burst to inform the other server
789 * (and any of ITS servers too) of what servers we know about.
790 * If at any point any of these servers already exist on the other
791 * end, our connection may be terminated. The hopcounts given
792 * by this function are relative, this doesn't matter so long as
793 * they are all >1, as all the remote servers re-calculate them
794 * to be relative too, with themselves as hop 0.
796 void SendServers(TreeServer* Current, TreeServer* s, int hops)
799 for (unsigned int q = 0; q < Current->ChildCount(); q++)
801 TreeServer* recursive_server = Current->GetChild(q);
802 if (recursive_server != s)
804 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
805 this->WriteLine(command);
806 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
807 /* down to next level */
808 this->SendServers(recursive_server, s, hops+1);
813 std::string MyCapabilities()
815 std::vector<std::string> modlist;
816 std::string capabilities = "";
818 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
820 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
821 modlist.push_back(this->Instance->Config->module_names[i]);
823 sort(modlist.begin(),modlist.end());
824 for (unsigned int i = 0; i < modlist.size(); i++)
827 capabilities = capabilities + ",";
828 capabilities = capabilities + modlist[i];
833 void SendCapabilities()
835 irc::commasepstream modulelist(MyCapabilities());
837 this->WriteLine("CAPAB START");
839 /* Send module names, split at 509 length */
840 std::string item = "*";
841 std::string line = "CAPAB MODULES ";
842 while ((item = modulelist.GetToken()) != "")
844 if (line.length() + item.length() + 1 > 509)
846 this->WriteLine(line);
847 line = "CAPAB MODULES ";
850 if (line != "CAPAB MODULES ")
855 if (line != "CAPAB MODULES ")
856 this->WriteLine(line);
863 #ifdef SUPPORT_IP6LINKS
866 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));
868 this->WriteLine("CAPAB END");
871 /* Check a comma seperated list for an item */
872 bool HasItem(const std::string &list, const std::string &item)
874 irc::commasepstream seplist(list);
876 std::string item2 = "*";
877 while ((item2 = seplist.GetToken()) != "")
886 /* Isolate and return the elements that are different between two comma seperated lists */
887 std::string ListDifference(const std::string &one, const std::string &two)
889 irc::commasepstream list_one(one);
890 std::string item = "*";
891 std::string result = "";
892 while ((item = list_one.GetToken()) != "")
894 if (!HasItem(two, item))
903 bool Capab(const std::deque<std::string> ¶ms)
905 if (params.size() < 1)
907 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
911 if (params[0] == "START")
913 this->ModuleList = "";
914 this->CapKeys.clear();
916 else if (params[0] == "END")
918 std::string reason = "";
920 #ifdef SUPPORT_IP6LINKS
923 /* Compare ModuleList and check CapKeys...
924 * Maybe this could be tidier? -- Brain
926 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
928 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
931 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
935 diff = "this server:" + diff;
937 if (diff.length() == 12)
938 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
940 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
943 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
944 reason = "We don't both support linking to IPV6 servers";
946 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
947 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
949 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
950 reason = "Maximum nickname lengths differ or remote nickname length not specified";
952 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
954 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
956 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
960 reason = "Protocol version not specified";
964 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))))
965 reason = "We don't both have halfop support enabled/disabled identically";
967 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
968 reason = "Maximum ident lengths differ or remote ident length not specified";
970 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
971 reason = "Maximum channel lengths differ or remote channel length not specified";
973 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
974 reason = "Maximum modes per line differ or remote modes per line not specified";
976 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
977 reason = "Maximum quit lengths differ or remote quit length not specified";
979 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
980 reason = "Maximum topic lengths differ or remote topic length not specified";
982 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
983 reason = "Maximum kick lengths differ or remote kick length not specified";
985 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
986 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
988 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
989 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
993 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
997 else if ((params[0] == "MODULES") && (params.size() == 2))
999 if (!this->ModuleList.length())
1001 this->ModuleList.append(params[1]);
1005 this->ModuleList.append(",");
1006 this->ModuleList.append(params[1]);
1009 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1011 irc::tokenstream capabs(params[1]);
1012 std::string item = "*";
1013 while ((item = capabs.GetToken()) != "")
1015 /* Process each key/value pair */
1016 std::string::size_type equals = item.rfind('=');
1017 if (equals != std::string::npos)
1019 std::string var = item.substr(0, equals);
1020 std::string value = item.substr(equals+1, item.length());
1021 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1022 CapKeys[var] = value;
1030 /** This function forces this server to quit, removing this server
1031 * and any users on it (and servers and users below that, etc etc).
1032 * It's very slow and pretty clunky, but luckily unless your network
1033 * is having a REAL bad hair day, this function shouldnt be called
1034 * too many times a month ;-)
1036 void SquitServer(std::string &from, TreeServer* Current)
1038 /* recursively squit the servers attached to 'Current'.
1039 * We're going backwards so we don't remove users
1040 * while we still need them ;)
1042 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1044 TreeServer* recursive_server = Current->GetChild(q);
1045 this->SquitServer(from,recursive_server);
1047 /* Now we've whacked the kids, whack self */
1049 num_lost_users += Current->QuitUsers(from);
1052 /** This is a wrapper function for SquitServer above, which
1053 * does some validation first and passes on the SQUIT to all
1054 * other remaining servers.
1056 void Squit(TreeServer* Current, const std::string &reason)
1058 if ((Current) && (Current != Utils->TreeRoot))
1060 std::deque<std::string> params;
1061 params.push_back(Current->GetName());
1062 params.push_back(":"+reason);
1063 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1064 if (Current->GetParent() == Utils->TreeRoot)
1066 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1070 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1072 num_lost_servers = 0;
1074 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1075 SquitServer(from, Current);
1077 Current->GetParent()->DelChild(Current);
1079 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1083 Instance->Log(DEFAULT,"Squit from unknown server");
1087 /** FMODE command - server mode with timestamp checks */
1088 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1090 /* Chances are this is a 1.0 FMODE without TS */
1091 if (params.size() < 3)
1093 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
1098 std::string sourceserv;
1100 /* Are we dealing with an FMODE from a user, or from a server? */
1101 userrec* who = this->Instance->FindNick(source);
1104 /* FMODE from a user, set sourceserv to the users server name */
1105 sourceserv = who->server;
1109 /* FMODE from a server, create a fake user to receive mode feedback */
1110 who = new userrec(this->Instance);
1111 who->SetFd(FD_MAGIC_NUMBER);
1112 smode = true; /* Setting this flag tells us we should free the userrec later */
1113 sourceserv = source; /* Set sourceserv to the actual source string */
1115 const char* modelist[64];
1118 memset(&modelist,0,sizeof(modelist));
1119 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1123 /* The timestamp is in this position.
1124 * We don't want to pass that up to the
1125 * server->client protocol!
1127 TS = atoi(params[q].c_str());
1131 /* Everything else is fine to append to the modelist */
1132 modelist[n++] = params[q].c_str();
1136 /* Extract the TS value of the object, either userrec or chanrec */
1137 userrec* dst = this->Instance->FindNick(params[0]);
1138 chanrec* chan = NULL;
1146 chan = this->Instance->FindChan(params[0]);
1152 /* Oops, channel doesnt exist! */
1156 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1161 Instance->Log(DEBUG,"Entering TS equality check");
1162 ModeHandler* mh = NULL;
1163 unsigned long paramptr = 3;
1164 std::string to_bounce = "";
1165 std::string to_keep = "";
1166 std::vector<std::string> params_to_keep;
1167 std::string params_to_bounce = "";
1169 char cur_change = 1;
1170 char old_change = 0;
1171 char old_bounce_change = 0;
1172 /* Merge modes, basically do special stuff to mode with params */
1173 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1186 /* We only care about whats being set,
1187 * not whats being unset
1189 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1191 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1193 /* We only want to do special things to
1194 * modes with parameters, we are going to rewrite
1198 adding ? cur_change = '+' : cur_change = '-';
1200 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1202 /* The mode is set here, check which we should keep */
1205 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1207 if (which_to_keep == true)
1209 /* Keep ours, bounce theirs:
1210 * Send back ours to them and
1211 * drop their mode changs
1213 adding ? cur_change = '+' : cur_change = '-';
1214 if (cur_change != old_bounce_change)
1215 to_bounce += cur_change;
1217 old_bounce_change = cur_change;
1219 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1220 params_to_bounce.append(" ").append(ret.second);
1224 /* Keep theirs: Accept their mode change,
1227 adding ? cur_change = '+' : cur_change = '-';
1228 if (cur_change != old_change)
1229 to_keep += cur_change;
1231 old_change = cur_change;
1233 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1234 params_to_keep.push_back(params[paramptr]);
1239 /* Mode isnt set here, we want it */
1240 adding ? cur_change = '+' : cur_change = '-';
1241 if (cur_change != old_change)
1242 to_keep += cur_change;
1244 old_change = cur_change;
1246 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1247 params_to_keep.push_back(params[paramptr]);
1254 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1258 adding ? cur_change = '+' : cur_change = '-';
1260 /* Just keep this, safe to merge with no checks
1261 * it has no parameters
1264 if (cur_change != old_change)
1265 to_keep += cur_change;
1267 old_change = cur_change;
1269 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1271 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1272 params_to_keep.push_back(params[paramptr++]);
1279 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1283 /* Taking a mode away */
1284 adding ? cur_change = '+' : cur_change = '-';
1286 if (cur_change != old_change)
1287 to_keep += cur_change;
1289 old_change = cur_change;
1291 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1292 params_to_keep.push_back(params[paramptr++]);
1299 if (to_bounce.length())
1301 std::deque<std::string> newparams;
1302 newparams.push_back(params[0]);
1303 newparams.push_back(ConvToStr(ourTS));
1304 newparams.push_back(to_bounce+params_to_bounce);
1305 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1306 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1309 if (to_keep.length())
1313 modelist[0] = params[0].c_str();
1314 modelist[1] = to_keep.c_str();
1316 if (params_to_keep.size() > 0)
1318 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1320 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1321 modelist[n++] = params_to_keep[q].c_str();
1327 Instance->Log(DEBUG,"Send mode");
1328 this->Instance->SendMode(modelist, n, who);
1332 Instance->Log(DEBUG,"Send mode client");
1333 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1336 /* HOT POTATO! PASS IT ON! */
1337 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1341 /* U-lined servers always win regardless of their TS */
1342 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1344 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1345 * SHOULD accept it, if its clock is right.
1347 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1348 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1349 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1351 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1352 * writing the code. It took me a while to come up with this solution.
1354 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1357 std::deque<std::string> newparams; /* New parameter list we send back */
1358 newparams.push_back(params[0]); /* Target, user or channel */
1359 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1360 newparams.push_back(""); /* This contains the mode string. For now
1361 * it's empty, we fill it below.
1364 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1365 * set to avoid a desync here.
1367 std::string modebounce = "";
1370 ModeHandler* mh = NULL;
1371 char cur_change = 1;
1372 char old_change = 0;
1373 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1375 /* Iterate over all mode chars in the sent set */
1378 /* Adding or subtracting modes? */
1386 /* Find the mode handler for this mode */
1387 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1389 /* Got a mode handler?
1390 * This also prevents us bouncing modes we have no handler for.
1397 /* Does the mode require a parameter right now?
1398 * If it does, fetch it if we can
1400 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1403 /* Call the ModeSet method to determine if its set with the
1404 * given parameter here or not.
1406 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1408 /* XXX: Really. Dont ask.
1409 * Determine from if its set combined with what the current
1410 * 'state' is (adding or not) as to wether we should 'invert'
1411 * or 'reinforce' the mode change
1413 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1415 /* Quickly determine if we have 'flipped' from + to -,
1416 * or - to +, to prevent unneccessary +/- chars in the
1417 * output string that waste bandwidth
1419 if (cur_change != old_change)
1420 modebounce += cur_change;
1421 old_change = cur_change;
1423 /* Add the mode character to the output string */
1424 modebounce += mh->GetModeChar();
1426 /* We got a parameter back from ModeHandler::ModeSet,
1427 * are we supposed to be sending one out right now?
1429 if (ret.second.length())
1431 if (mh->GetNumParams(cur_change == '+') > 0)
1432 /* Yes we're supposed to be sending out
1433 * the parameter. Make sure it goes
1435 newparams.push_back(ret.second);
1443 /* Update the parameters for FMODE with the new 'bounced' string */
1444 newparams[2] = modebounce;
1445 /* Only send it back the way it came, no need to send it anywhere else */
1446 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1447 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1451 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1452 /* The server was ulined, but something iffy is up with the TS.
1453 * Sound the alarm bells!
1455 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1457 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());
1459 /* Allow the mode, route it to either server or user command handling */
1461 this->Instance->SendMode(modelist,n,who);
1463 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1465 /* HOT POTATO! PASS IT ON! */
1466 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1468 /* Are we supposed to free the userrec? */
1475 /** FTOPIC command */
1476 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1478 if (params.size() != 4)
1480 time_t ts = atoi(params[1].c_str());
1481 std::string nsource = source;
1483 chanrec* c = this->Instance->FindChan(params[0]);
1486 if ((ts >= c->topicset) || (!*c->topic))
1488 std::string oldtopic = c->topic;
1489 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1490 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1492 /* if the topic text is the same as the current topic,
1493 * dont bother to send the TOPIC command out, just silently
1494 * update the set time and set nick.
1496 if (oldtopic != params[3])
1498 userrec* user = this->Instance->FindNick(source);
1501 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1505 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1506 nsource = user->server;
1508 /* all done, send it on its way */
1509 params[3] = ":" + params[3];
1510 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1519 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1520 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1522 /* 1.1 FJOIN works as follows:
1524 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1525 * timestamp 'wins'. From this point on we will refer to this side as the
1526 * winner. The side with the higher timestamp loses, from this point on we
1527 * will call this side the loser or losing side. This should be familiar to
1528 * anyone who's dealt with dreamforge or TS6 before.
1530 * When two sides of a split heal and this occurs, the following things
1533 * If the timestamps are exactly equal, both sides merge their privilages
1534 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1535 * re-created during a split, this is safe to do.
1538 * If the timestamps are NOT equal, the losing side removes all privilage
1539 * modes from all of its users that currently exist in the channel, before
1540 * introducing new users into the channel which are listed in the FJOIN
1541 * command's parameters. This means, all modes +ohv, and privilages added
1542 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1543 * of the channel to match that of the winning side, and the modes of the
1544 * users of the winning side are merged in with the losing side. The loser
1545 * then sends out a set of FMODE commands which 'confirm' that it just
1546 * removed all privilage modes from its existing users, which allows for
1547 * services packages to still work correctly without needing to know the
1548 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1549 * a problem, and services packages must contain code which explicitly
1550 * behaves as TS6 does, removing ops from the losing side of a split where
1551 * neccessary within its internal records, as this state information is
1552 * not explicitly echoed out in that protocol.
1554 * The winning side on the other hand will ignore all user modes from the
1555 * losing side, so only its own modes get applied. Life is simple for those
1556 * who succeed at internets. :-)
1558 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1559 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1560 * you ask? Well, quite simply because we don't need to. They'll be sent
1561 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1562 * the losing side sends any modes for the channel which shouldnt win,
1563 * they wont as their timestamp will be too high :-)
1566 if (params.size() < 3)
1569 char first[MAXBUF]; /* The first parameter of the mode command */
1570 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1571 char* mode_users[127]; /* The values used by the mode command */
1572 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1573 mode_users[0] = first; /* Set this up to be our on-stack value */
1574 mode_users[1] = modestring; /* Same here as above */
1575 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1576 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1578 userrec* who = NULL; /* User we are currently checking */
1579 std::string channel = params[0]; /* Channel name, as a string */
1580 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1582 /* Try and find the channel */
1583 chanrec* chan = this->Instance->FindChan(channel);
1585 /* Initialize channel name in the mode parameters */
1586 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1588 /* default TS is a high value, which if we dont have this
1589 * channel will let the other side apply their modes.
1591 time_t ourTS = time(NULL)+600;
1593 /* Does this channel exist? if it does, get its REAL timestamp */
1597 /* In 1.1, if they have the newer channel, we immediately clear
1598 * all status modes from our users. We then accept their modes.
1599 * If WE have the newer channel its the other side's job to do this.
1600 * Note that this causes the losing server to send out confirming
1605 std::deque<std::string> param_list;
1610 /* Lower the TS here */
1611 if (Utils->AnnounceTSChange && chan)
1612 chan->WriteChannelWithServ(Instance->Config->ServerName,
1613 "TS for %s changed from %lu to %lu", chan->name, ourTS, TS);
1616 param_list.push_back(channel);
1617 /* Zap all the privilage modes on our side */
1618 this->RemoveStatus(Instance->Config->ServerName, param_list);
1621 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1622 irc::tokenstream users(params[2]);
1623 std::string item = "*";
1625 /* do this first, so our mode reversals are correctly received by other servers
1626 * if there is a TS collision.
1628 params[2] = ":" + params[2];
1629 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1631 /* Now, process every 'prefixes,nick' pair */
1634 /* Find next user */
1635 item = users.GetToken();
1637 const char* usr = item.c_str();
1639 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1640 * (is this even possible?) */
1643 const char* permissions = usr;
1645 char* nm = new char[MAXBUF];
1648 /* Iterate through all the prefix values, convert them from prefixes
1649 * to mode letters, and append them to the mode sequence
1651 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1653 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1656 /* This is a valid prefix */
1658 *tnm++ = mh->GetModeChar();
1662 /* Not a valid prefix...
1663 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1665 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1666 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1673 /* Null terminate modes */
1675 /* Advance past the comma, to the nick */
1678 /* Check the user actually exists */
1679 who = this->Instance->FindNick(usr);
1682 /* Did they get any modes? How many times? */
1683 strlcat(modestring, nm, MAXBUF);
1684 for (int k = 0; k < ntimes; k++)
1685 mode_users[modectr++] = strdup(usr);
1687 /* Free temporary buffer used for mode sequence */
1690 /* Check that the user's 'direction' is correct
1691 * based on the server sending the FJOIN. We must
1692 * check each nickname in turn, because the origin of
1693 * the FJOIN may be different to the origin of the nicks
1694 * in the command itself.
1696 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1697 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1699 /* Oh dear oh dear. */
1700 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1703 /* Finally, we can actually place the user into the channel.
1704 * We're sure its right. Final answer, phone a friend.
1706 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1708 /* Have we already queued up MAXMODES modes with parameters
1709 * (+qaohv) ready to be sent to the server?
1711 if (modectr >= (MAXMODES-1))
1713 /* Only actually give the users any status if we lost
1714 * the FJOIN or drew (equal timestamps).
1715 * It isn't actually possible for ourTS to be > TS here,
1716 * only possible to actually have ourTS == TS, or
1717 * ourTS < TS, because if we lost, we already lowered
1718 * our TS above before we entered this loop. We only
1719 * check >= as a safety measure, in case someone stuffed
1720 * up. If someone DID stuff up, it was most likely me.
1721 * Note: I do not like baseball bats in the face...
1725 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1726 this->Instance->SendMode((const char**)mode_users,modectr,who);
1728 /* Something stuffed up, and for some reason, the timestamp is
1729 * NOT lowered right now and should be. Lower it. Usually this
1730 * code won't be executed, doubtless someone will remove it some
1735 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1741 /* Reset all this back to defaults, and
1742 * free any ram we have left allocated.
1744 strcpy(mode_users[1],"+");
1745 for (unsigned int f = 2; f < modectr; f++)
1746 free(mode_users[f]);
1752 /* Remember to free this */
1754 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1755 * We don't try to process the nickname here (that WOULD cause a segfault because
1756 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1757 * in case somehow we're desynched, so that other users which might be able to see
1758 * the nickname get their fair chance to process it.
1760 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1766 /* there werent enough modes built up to flush it during FJOIN,
1767 * or, there are a number left over. flush them out.
1769 if ((modectr > 2) && (who) && (chan))
1773 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1774 this->Instance->SendMode((const char**)mode_users,modectr,who);
1775 /* Yet again, we can't actually get a true value here, if everything else
1776 * is working as it should.
1780 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1786 /* Free anything we have left to free */
1787 for (unsigned int f = 2; f < modectr; f++)
1788 free(mode_users[f]);
1791 /* All done. That wasnt so bad was it, you can wipe
1792 * the sweat from your forehead now. :-)
1798 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1800 if (params.size() < 8)
1802 if (params.size() > 8)
1804 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1807 // NICK age nick host dhost ident +modes ip :gecos
1809 time_t age = atoi(params[0].c_str());
1811 /* This used to have a pretty craq'y loop doing the same thing,
1812 * now we just let the STL do the hard work (more efficiently)
1814 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1815 if (pos_after_plus != std::string::npos)
1816 params[5] = params[5].substr(pos_after_plus);
1818 const char* tempnick = params[1].c_str();
1819 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1821 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1823 if (iter != this->Instance->clientlist.end())
1826 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);
1827 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1828 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1832 userrec* _new = new userrec(this->Instance);
1833 this->Instance->clientlist[tempnick] = _new;
1834 _new->SetFd(FD_MAGIC_NUMBER);
1835 strlcpy(_new->nick, tempnick,NICKMAX-1);
1836 strlcpy(_new->host, params[2].c_str(),63);
1837 strlcpy(_new->dhost, params[3].c_str(),63);
1838 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1839 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1840 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1841 _new->registered = REG_ALL;
1844 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1845 _new->modes[(*v)-65] = 1;
1847 #ifdef SUPPORT_IP6LINKS
1848 if (params[6].find_first_of(":") != std::string::npos)
1849 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1852 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1854 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1856 params[7] = ":" + params[7];
1857 Utils->DoOneToAllButSender(source,"NICK",params,source);
1859 // Increment the Source Servers User Count..
1860 TreeServer* SourceServer = Utils->FindServer(source);
1863 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1864 SourceServer->AddUserCount();
1867 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1872 /** Send one or more FJOINs for a channel of users.
1873 * If the length of a single line is more than 480-NICKMAX
1874 * in length, it is split over multiple lines.
1876 void SendFJoins(TreeServer* Current, chanrec* c)
1880 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1882 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1884 size_t dlen, curlen;
1885 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1887 char* ptr = list + dlen;
1889 CUList *ulist = c->GetUsers();
1890 std::string modes = "";
1891 std::string params = "";
1893 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1895 // The first parameter gets a : before it
1896 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1903 if (curlen > (480-NICKMAX))
1905 buffer.append(list).append("\n");
1907 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1915 buffer.append(list).append("\n");
1917 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1920 params.append(" ").append(b->data);
1922 if (params.length() >= MAXMODES)
1924 /* Wrap at MAXMODES */
1925 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\n");
1931 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
1933 /* Only send these if there are any */
1935 buffer.append("\n").append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
1937 this->WriteLine(buffer);
1940 /** Send G, Q, Z and E lines */
1941 void SendXLines(TreeServer* Current)
1945 std::string n = this->Instance->Config->ServerName;
1946 const char* sn = n.c_str();
1948 /* Yes, these arent too nice looking, but they get the job done */
1949 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1951 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1952 buffer.append(data);
1954 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1956 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1957 buffer.append(data);
1959 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1961 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1962 buffer.append(data);
1964 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1966 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1967 buffer.append(data);
1969 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1971 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1972 buffer.append(data);
1974 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1976 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1977 buffer.append(data);
1979 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1981 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1982 buffer.append(data);
1984 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1986 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s\n",sn,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
1987 buffer.append(data);
1990 if (!buffer.empty())
1991 this->WriteLine(buffer);
1994 /** Send channel modes and topics */
1995 void SendChannelModes(TreeServer* Current)
1998 std::deque<std::string> list;
2000 std::string n = this->Instance->Config->ServerName;
2001 const char* sn = n.c_str();
2002 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
2004 SendFJoins(Current, c->second);
2005 if (*c->second->topic)
2007 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2008 this->WriteLine(data);
2010 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2012 c->second->GetExtList(list);
2013 for (unsigned int j = 0; j < list.size(); j++)
2015 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2020 /** send all users and their oper state/modes */
2021 void SendUsers(TreeServer* Current)
2024 std::deque<std::string> list;
2025 std::string dataline;
2027 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2029 if (u->second->registered == REG_ALL)
2031 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);
2032 this->WriteLine(data);
2033 if (*u->second->oper)
2035 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2036 this->WriteLine(data);
2038 if (*u->second->awaymsg)
2040 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2041 this->WriteLine(data);
2043 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2045 u->second->GetExtList(list);
2046 for (unsigned int j = 0; j < list.size(); j++)
2048 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2054 /** This function is called when we want to send a netburst to a local
2055 * server. There is a set order we must do this, because for example
2056 * users require their servers to exist, and channels require their
2057 * users to exist. You get the idea.
2059 void DoBurst(TreeServer* s)
2061 std::string burst = "BURST "+ConvToStr(time(NULL));
2062 std::string endburst = "ENDBURST";
2063 // Because by the end of the netburst, it could be gone!
2064 std::string name = s->GetName();
2065 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2066 this->WriteLine(burst);
2067 /* send our version string */
2068 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2069 /* Send server tree */
2070 this->SendServers(Utils->TreeRoot,s,1);
2071 /* Send users and their oper status */
2073 /* Send everything else (channel modes, xlines etc) */
2074 this->SendChannelModes(s);
2075 this->SendXLines(s);
2076 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2077 this->WriteLine(endburst);
2078 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2081 /** This function is called when we receive data from a remote
2082 * server. We buffer the data in a std::string (it doesnt stay
2083 * there for long), reading using InspSocket::Read() which can
2084 * read up to 16 kilobytes in one operation.
2086 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2087 * THE SOCKET OBJECT FOR US.
2089 virtual bool OnDataReady()
2091 char* data = this->Read();
2092 /* Check that the data read is a valid pointer and it has some content */
2095 this->in_buffer.append(data);
2096 /* While there is at least one new line in the buffer,
2097 * do something useful (we hope!) with it.
2099 while (in_buffer.find("\n") != std::string::npos)
2101 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2102 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2103 /* Use rfind here not find, as theres more
2104 * chance of the \r being near the end of the
2105 * string, not the start.
2107 if (ret.find("\r") != std::string::npos)
2108 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2109 /* Process this one, abort if it
2110 * didnt return true.
2116 memset(result,0,1024);
2118 /* ERROR + CAPAB is still allowed unencryped */
2119 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
2121 int nbytes = from64tobits(out, ret.c_str(), 1024);
2122 if ((nbytes > 0) && (nbytes < 1024))
2124 ctx_in->Decrypt(out, result, nbytes, 0);
2125 for (int t = 0; t < nbytes; t++)
2127 if (result[t] == '\7')
2129 /* We only need to stick a \0 on the
2130 * first \7, the rest will be lost
2140 if (!this->ProcessLine(ret))
2147 /* EAGAIN returns an empty but non-NULL string, so this
2148 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2150 return (data && !*data);
2153 int WriteLine(std::string line)
2155 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2159 char result64[10240];
2160 if (this->keylength)
2162 // pad it to the key length
2163 int n = this->keylength - (line.length() % this->keylength);
2165 line.append(n,'\7');
2167 unsigned int ll = line.length();
2168 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2169 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2172 line.append("\r\n");
2173 return this->Write(line);
2176 /* Handle ERROR command */
2177 bool Error(std::deque<std::string> ¶ms)
2179 if (params.size() < 1)
2181 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2182 /* we will return false to cause the socket to close. */
2186 /** remote MOTD. leet, huh? */
2187 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2189 if (params.size() > 0)
2191 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2193 /* It's for our server */
2194 string_list results;
2195 userrec* source = this->Instance->FindNick(prefix);
2199 std::deque<std::string> par;
2200 par.push_back(prefix);
2203 if (!Instance->Config->MOTD.size())
2205 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2206 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2210 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2211 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2213 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2215 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2216 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2219 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2220 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2226 userrec* source = this->Instance->FindNick(prefix);
2228 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2234 /** remote ADMIN. leet, huh? */
2235 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2237 if (params.size() > 0)
2239 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2241 /* It's for our server */
2242 string_list results;
2243 userrec* source = this->Instance->FindNick(prefix);
2247 std::deque<std::string> par;
2248 par.push_back(prefix);
2251 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2252 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2254 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2255 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2257 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2258 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2260 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2261 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2267 userrec* source = this->Instance->FindNick(prefix);
2269 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2275 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2277 /* Get the reply to a STATS query if it matches this servername,
2278 * and send it back as a load of PUSH queries
2280 if (params.size() > 1)
2282 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2284 /* It's for our server */
2285 string_list results;
2286 userrec* source = this->Instance->FindNick(prefix);
2289 std::deque<std::string> par;
2290 par.push_back(prefix);
2292 DoStats(this->Instance, *(params[0].c_str()), source, results);
2293 for (size_t i = 0; i < results.size(); i++)
2295 par[1] = "::" + results[i];
2296 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2303 userrec* source = this->Instance->FindNick(prefix);
2305 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2312 /** Because the core won't let users or even SERVERS set +o,
2313 * we use the OPERTYPE command to do this.
2315 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2317 if (params.size() != 1)
2319 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2322 std::string opertype = params[0];
2323 userrec* u = this->Instance->FindNick(prefix);
2326 u->modes[UM_OPERATOR] = 1;
2327 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2328 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2333 /** Because Andy insists that services-compatible servers must
2334 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2336 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2338 if (params.size() < 3)
2341 userrec* u = this->Instance->FindNick(params[0]);
2345 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2348 std::deque<std::string> par;
2349 par.push_back(params[1]);
2350 /* This is not required as one is sent in OnUserPostNick below
2352 //Utils->DoOneToMany(u->nick,"NICK",par);
2353 if (!u->ForceNickChange(params[1].c_str()))
2355 userrec::QuitUser(this->Instance, u, "Nickname collision");
2358 u->age = atoi(params[2].c_str());
2364 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2366 if (params.size() < 2)
2369 userrec* u = this->Instance->FindNick(params[0]);
2373 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2374 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2379 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2381 if (params.size() < 1)
2384 std::string servermask = params[0];
2386 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2388 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2389 this->Instance->RehashServer();
2390 Utils->ReadConfiguration(false);
2391 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2393 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2397 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2399 if (params.size() != 2)
2402 std::string nick = params[0];
2403 userrec* u = this->Instance->FindNick(prefix);
2404 userrec* who = this->Instance->FindNick(nick);
2408 /* Prepend kill source, if we don't have one */
2409 std::string sourceserv = prefix;
2412 sourceserv = u->server;
2414 if (*(params[1].c_str()) != '[')
2416 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2418 std::string reason = params[1];
2419 params[1] = ":" + params[1];
2420 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2421 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2422 userrec::QuitUser(this->Instance,who,reason);
2427 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2429 if (params.size() < 1)
2432 if (params.size() == 1)
2434 TreeServer* ServerSource = Utils->FindServer(prefix);
2437 ServerSource->SetPingFlag();
2442 std::string forwardto = params[1];
2443 if (forwardto == this->Instance->Config->ServerName)
2446 * this is a PONG for us
2447 * if the prefix is a user, check theyre local, and if they are,
2448 * dump the PONG reply back to their fd. If its a server, do nowt.
2449 * Services might want to send these s->s, but we dont need to yet.
2451 userrec* u = this->Instance->FindNick(prefix);
2455 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2460 // not for us, pass it on :)
2461 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2468 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2470 if (params.size() < 3)
2473 TreeServer* ServerSource = Utils->FindServer(prefix);
2477 if (params[0] == "*")
2479 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2481 else if (*(params[0].c_str()) == '#')
2483 chanrec* c = this->Instance->FindChan(params[0]);
2486 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2489 else if (*(params[0].c_str()) != '#')
2491 userrec* u = this->Instance->FindNick(params[0]);
2494 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2499 params[2] = ":" + params[2];
2500 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2504 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2506 if (params.size() < 1)
2509 TreeServer* ServerSource = Utils->FindServer(prefix);
2513 ServerSource->SetVersion(params[0]);
2515 params[0] = ":" + params[0];
2516 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2520 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2522 if (params.size() < 1)
2525 userrec* u = this->Instance->FindNick(prefix);
2529 u->ChangeDisplayedHost(params[0].c_str());
2530 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2535 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2537 if (params.size() < 6)
2540 bool propogate = false;
2542 switch (*(params[0].c_str()))
2545 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2546 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2549 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2550 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2553 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2554 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2557 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2558 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2561 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2564 /* Just in case... */
2565 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2570 /* Send it on its way */
2573 if (atoi(params[4].c_str()))
2575 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());
2579 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());
2581 params[5] = ":" + params[5];
2582 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2584 if (!this->bursting)
2586 Instance->Log(DEBUG,"Applying lines...");
2587 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2592 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2594 if (params.size() < 1)
2597 userrec* u = this->Instance->FindNick(prefix);
2601 u->ChangeName(params[0].c_str());
2602 params[0] = ":" + params[0];
2603 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2608 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2610 if (params.size() < 1)
2613 Instance->Log(DEBUG,"In IDLE command");
2614 userrec* u = this->Instance->FindNick(prefix);
2618 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2619 // an incoming request
2620 if (params.size() == 1)
2622 userrec* x = this->Instance->FindNick(params[0]);
2623 if ((x) && (IS_LOCAL(x)))
2625 userrec* x = this->Instance->FindNick(params[0]);
2626 char signon[MAXBUF];
2629 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2630 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2631 std::deque<std::string> par;
2632 par.push_back(prefix);
2633 par.push_back(signon);
2634 par.push_back(idle);
2635 // ours, we're done, pass it BACK
2636 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2640 // not ours pass it on
2641 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2644 else if (params.size() == 3)
2646 std::string who_did_the_whois = params[0];
2647 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2648 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2650 // an incoming reply to a whois we sent out
2651 std::string nick_whoised = prefix;
2652 unsigned long signon = atoi(params[1].c_str());
2653 unsigned long idle = atoi(params[2].c_str());
2654 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2655 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2659 // not ours, pass it on
2660 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2667 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2669 if (params.size() < 2)
2672 userrec* u = this->Instance->FindNick(params[0]);
2679 u->Write(params[1]);
2683 // continue the raw onwards
2684 params[1] = ":" + params[1];
2685 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2690 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2692 // :source.server TIME remote.server sendernick
2693 // :remote.server TIME source.server sendernick TS
2694 if (params.size() == 2)
2696 // someone querying our time?
2697 if (this->Instance->Config->ServerName == params[0])
2699 userrec* u = this->Instance->FindNick(params[1]);
2703 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2704 params.push_back(curtime);
2706 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2711 // not us, pass it on
2712 userrec* u = this->Instance->FindNick(params[1]);
2714 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2717 else if (params.size() == 3)
2719 // a response to a previous TIME
2720 userrec* u = this->Instance->FindNick(params[1]);
2721 if ((u) && (IS_LOCAL(u)))
2723 time_t rawtime = atol(params[2].c_str());
2724 struct tm * timeinfo;
2725 timeinfo = localtime(&rawtime);
2727 snprintf(tms,26,"%s",asctime(timeinfo));
2729 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2734 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2740 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2742 if (params.size() < 1)
2745 if (params.size() == 1)
2747 std::string stufftobounce = params[0];
2748 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2753 std::string forwardto = params[1];
2754 if (forwardto == this->Instance->Config->ServerName)
2756 // this is a ping for us, send back PONG to the requesting server
2757 params[1] = params[0];
2758 params[0] = forwardto;
2759 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2763 // not for us, pass it on :)
2764 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2770 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2772 if (params.size() < 1)
2775 chanrec* c = Instance->FindChan(params[0]);
2779 irc::modestacker modestack(false);
2780 CUList *ulist = c->GetUsers();
2782 std::deque<std::string> stackresult;
2785 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2787 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2788 if (modesequence.length())
2790 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2791 irc::spacesepstream sep(modesequence);
2792 std::string modeletters = sep.GetToken();
2793 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2795 while (!modeletters.empty())
2797 char mletter = *(modeletters.begin());
2798 modestack.Push(mletter,sep.GetToken());
2799 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2800 modeletters.erase(modeletters.begin());
2801 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2806 while (modestack.GetStackedLine(stackresult))
2808 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2809 stackresult.push_front(ConvToStr(c->age));
2810 stackresult.push_front(c->name);
2811 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2812 stackresult.erase(stackresult.begin() + 1);
2813 Instance->Log(DEBUG,"Stacked items:");
2814 for (size_t z = 0; z < stackresult.size(); z++)
2816 y[z] = stackresult[z].c_str();
2817 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2819 userrec* n = new userrec(Instance);
2820 n->SetFd(FD_MAGIC_NUMBER);
2821 Instance->SendMode(y, stackresult.size(), n);
2828 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2830 if (params.size() < 4)
2833 std::string servername = params[0];
2834 std::string password = params[1];
2835 // hopcount is not used for a remote server, we calculate this ourselves
2836 std::string description = params[3];
2837 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2841 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2844 TreeServer* CheckDupe = Utils->FindServer(servername);
2847 this->WriteLine("ERROR :Server "+servername+" already exists!");
2848 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2851 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2852 ParentOfThis->AddChild(Node);
2853 params[3] = ":" + params[3];
2854 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2855 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2859 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2861 if (params.size() < 4)
2864 irc::string servername = params[0].c_str();
2865 std::string sname = params[0];
2866 std::string password = params[1];
2867 int hops = atoi(params[2].c_str());
2871 this->WriteLine("ERROR :Server too far away for authentication");
2872 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2875 std::string description = params[3];
2876 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2878 if ((x->Name == servername) && (x->RecvPass == password))
2880 TreeServer* CheckDupe = Utils->FindServer(sname);
2883 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2884 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2887 // Begin the sync here. this kickstarts the
2888 // other side, waiting in WAIT_AUTH_2 state,
2889 // into starting their burst, as it shows
2890 // that we're happy.
2891 this->LinkState = CONNECTED;
2892 // we should add the details of this server now
2893 // to the servers tree, as a child of the root
2895 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
2896 Utils->TreeRoot->AddChild(Node);
2897 params[3] = ":" + params[3];
2898 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
2899 this->bursting = true;
2900 this->DoBurst(Node);
2904 this->WriteLine("ERROR :Invalid credentials");
2905 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2909 bool Inbound_Server(std::deque<std::string> ¶ms)
2911 if (params.size() < 4)
2914 irc::string servername = params[0].c_str();
2915 std::string sname = params[0];
2916 std::string password = params[1];
2917 int hops = atoi(params[2].c_str());
2921 this->WriteLine("ERROR :Server too far away for authentication");
2922 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2925 std::string description = params[3];
2926 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
2928 if ((x->Name == servername) && (x->RecvPass == password))
2930 TreeServer* CheckDupe = Utils->FindServer(sname);
2933 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2934 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2937 /* If the config says this link is encrypted, but the remote side
2938 * hasnt bothered to send the AES command before SERVER, then we
2939 * boot them off as we MUST have this connection encrypted.
2941 if ((x->EncryptionKey != "") && (!this->ctx_in))
2943 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2944 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2947 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2948 this->InboundServerName = sname;
2949 this->InboundDescription = description;
2950 // this is good. Send our details: Our server name and description and hopcount of 0,
2951 // along with the sendpass from this block.
2952 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2953 // move to the next state, we are now waiting for THEM.
2954 this->LinkState = WAIT_AUTH_2;
2958 this->WriteLine("ERROR :Invalid credentials");
2959 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2963 void Split(const std::string &line, std::deque<std::string> &n)
2966 irc::tokenstream tokens(line);
2968 while ((param = tokens.GetToken()) != "")
2973 bool ProcessLine(std::string &line)
2975 std::deque<std::string> params;
2976 irc::string command;
2982 line = line.substr(0, line.find_first_of("\r\n"));
2984 Instance->Log(DEBUG,"IN: %s", line.c_str());
2986 this->Split(line.c_str(),params);
2988 if ((params[0][0] == ':') && (params.size() > 1))
2990 prefix = params[0].substr(1);
2994 command = params[0].c_str();
2997 if ((!this->ctx_in) && (command == "AES"))
2999 std::string sserv = params[0];
3000 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3002 if ((x->EncryptionKey != "") && (x->Name == sserv))
3004 this->InitAES(x->EncryptionKey,sserv);
3010 else if ((this->ctx_in) && (command == "AES"))
3012 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
3015 switch (this->LinkState)
3020 // Waiting for SERVER command from remote server. Server initiating
3021 // the connection sends the first SERVER command, listening server
3022 // replies with theirs if its happy, then if the initiator is happy,
3023 // it starts to send its net sync, which starts the merge, otherwise
3024 // it sends an ERROR.
3025 if (command == "PASS")
3027 /* Silently ignored */
3029 else if (command == "SERVER")
3031 return this->Inbound_Server(params);
3033 else if (command == "ERROR")
3035 return this->Error(params);
3037 else if (command == "USER")
3039 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3042 else if (command == "CAPAB")
3044 return this->Capab(params);
3046 else if ((command == "U") || (command == "S"))
3048 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3053 std::string error("ERROR :Invalid command in negotiation phase: ");
3054 error.append(command.c_str());
3055 this->WriteLine(error);
3060 // Waiting for start of other side's netmerge to say they liked our
3062 if (command == "SERVER")
3064 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3068 else if ((command == "U") || (command == "S"))
3070 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3073 else if (command == "BURST")
3077 /* If a time stamp is provided, try and check syncronization */
3078 time_t THEM = atoi(params[0].c_str());
3079 long delta = THEM-time(NULL);
3080 if ((delta < -600) || (delta > 600))
3082 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));
3083 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3086 else if ((delta < -60) || (delta > 60))
3088 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
3091 this->LinkState = CONNECTED;
3092 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3093 Utils->TreeRoot->AddChild(Node);
3095 params.push_back(InboundServerName);
3096 params.push_back("*");
3097 params.push_back("1");
3098 params.push_back(":"+InboundDescription);
3099 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3100 this->bursting = true;
3101 this->DoBurst(Node);
3103 else if (command == "ERROR")
3105 return this->Error(params);
3107 else if (command == "CAPAB")
3109 return this->Capab(params);
3114 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3118 if (command == "SERVER")
3120 // another server we connected to, which was in WAIT_AUTH_1 state,
3121 // has just sent us their credentials. If we get this far, theyre
3122 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3123 // if we're happy with this, we should send our netburst which
3124 // kickstarts the merge.
3125 return this->Outbound_Reply_Server(params);
3127 else if (command == "ERROR")
3129 return this->Error(params);
3133 // This is the 'authenticated' state, when all passwords
3134 // have been exchanged and anything past this point is taken
3139 std::string direction = prefix;
3140 userrec* t = this->Instance->FindNick(prefix);
3143 direction = t->server;
3145 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3146 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3148 if (route_back_again)
3149 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3154 * When there is activity on the socket, reset the ping counter so
3155 * that we're not wasting bandwidth pinging an active server.
3157 route_back_again->SetNextPingTime(time(NULL) + 60);
3158 route_back_again->SetPingFlag();
3161 if (command == "SVSMODE")
3163 /* Services expects us to implement
3164 * SVSMODE. In inspircd its the same as
3169 std::string target = "";
3170 /* Yes, know, this is a mess. Its reasonably fast though as we're
3171 * working with std::string here.
3173 if ((command == "NICK") && (params.size() > 1))
3175 return this->IntroduceClient(prefix,params);
3177 else if (command == "FJOIN")
3179 return this->ForceJoin(prefix,params);
3181 else if (command == "STATS")
3183 return this->Stats(prefix, params);
3185 else if (command == "MOTD")
3187 return this->Motd(prefix, params);
3189 else if (command == "ADMIN")
3191 return this->Admin(prefix, params);
3193 else if (command == "SERVER")
3195 return this->RemoteServer(prefix,params);
3197 else if (command == "ERROR")
3199 return this->Error(params);
3201 else if (command == "OPERTYPE")
3203 return this->OperType(prefix,params);
3205 else if (command == "FMODE")
3207 return this->ForceMode(prefix,params);
3209 else if (command == "KILL")
3211 return this->RemoteKill(prefix,params);
3213 else if (command == "FTOPIC")
3215 return this->ForceTopic(prefix,params);
3217 else if (command == "REHASH")
3219 return this->RemoteRehash(prefix,params);
3221 else if (command == "METADATA")
3223 return this->MetaData(prefix,params);
3225 else if (command == "REMSTATUS")
3227 return this->RemoveStatus(prefix,params);
3229 else if (command == "PING")
3232 * We just got a ping from a server that's bursting.
3233 * This can't be right, so set them to not bursting, and
3234 * apply their lines.
3238 this->bursting = false;
3239 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3243 prefix = this->GetName();
3245 return this->LocalPing(prefix,params);
3247 else if (command == "PONG")
3250 * We just got a pong from a server that's bursting.
3251 * This can't be right, so set them to not bursting, and
3252 * apply their lines.
3256 this->bursting = false;
3257 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3261 prefix = this->GetName();
3263 return this->LocalPong(prefix,params);
3265 else if (command == "VERSION")
3267 return this->ServerVersion(prefix,params);
3269 else if (command == "FHOST")
3271 return this->ChangeHost(prefix,params);
3273 else if (command == "FNAME")
3275 return this->ChangeName(prefix,params);
3277 else if (command == "ADDLINE")
3279 return this->AddLine(prefix,params);
3281 else if (command == "SVSNICK")
3285 prefix = this->GetName();
3287 return this->ForceNick(prefix,params);
3289 else if (command == "IDLE")
3291 return this->Whois(prefix,params);
3293 else if (command == "PUSH")
3295 return this->Push(prefix,params);
3297 else if (command == "TIME")
3299 return this->Time(prefix,params);
3301 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3303 std::string sourceserv = this->myhost;
3304 if (params.size() == 3)
3306 userrec* user = this->Instance->FindNick(params[1]);
3307 chanrec* chan = this->Instance->FindChan(params[0]);
3310 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3311 /* Yikes, the channels gone! */
3315 if (this->InboundServerName != "")
3317 sourceserv = this->InboundServerName;
3319 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3321 else if (command == "SVSJOIN")
3325 prefix = this->GetName();
3327 return this->ServiceJoin(prefix,params);
3329 else if (command == "SQUIT")
3331 if (params.size() == 2)
3333 this->Squit(Utils->FindServer(params[0]),params[1]);
3337 else if (command == "ENDBURST")
3339 this->bursting = false;
3340 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3341 std::string sourceserv = this->myhost;
3342 if (this->InboundServerName != "")
3344 sourceserv = this->InboundServerName;
3346 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3351 // not a special inter-server command.
3352 // Emulate the actual user doing the command,
3353 // this saves us having a huge ugly parser.
3354 userrec* who = this->Instance->FindNick(prefix);
3355 std::string sourceserv = this->myhost;
3356 if (this->InboundServerName != "")
3358 sourceserv = this->InboundServerName;
3362 if ((command == "NICK") && (params.size() > 0))
3364 /* On nick messages, check that the nick doesnt
3365 * already exist here. If it does, kill their copy,
3368 userrec* x = this->Instance->FindNick(params[0]);
3369 if ((x) && (x != who))
3371 std::deque<std::string> p;
3372 p.push_back(params[0]);
3373 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3374 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3376 p.push_back(prefix);
3377 p.push_back("Nickname collision");
3378 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3379 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3380 userrec* y = this->Instance->FindNick(prefix);
3383 userrec::QuitUser(this->Instance,y,"Nickname collision");
3385 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3389 target = who->server;
3390 const char* strparams[127];
3391 for (unsigned int q = 0; q < params.size(); q++)
3393 strparams[q] = params[q].c_str();
3395 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3398 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3405 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3411 // its not a user. Its either a server, or somethings screwed up.
3412 if (Utils->IsServer(prefix))
3414 target = this->Instance->Config->ServerName;
3418 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3422 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3431 virtual std::string GetName()
3433 std::string sourceserv = this->myhost;
3434 if (this->InboundServerName != "")
3436 sourceserv = this->InboundServerName;
3441 virtual void OnTimeout()
3443 if (this->LinkState == CONNECTING)
3445 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3446 Link* MyLink = Utils->FindLink(myhost);
3448 Utils->DoFailOver(MyLink);
3452 virtual void OnClose()
3454 // Connection closed.
3455 // If the connection is fully up (state CONNECTED)
3456 // then propogate a netsplit to all peers.
3457 std::string quitserver = this->myhost;
3458 if (this->InboundServerName != "")
3460 quitserver = this->InboundServerName;
3462 TreeServer* s = Utils->FindServer(quitserver);
3465 Squit(s,"Remote host closed the connection");
3468 if (quitserver != "")
3469 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3472 virtual int OnIncomingConnection(int newsock, char* ip)
3474 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3475 * or discovering if this port is the server port, we don't allow connections from any
3476 * IPs for which we don't have a link block.
3480 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3483 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3484 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3489 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3494 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip);
3495 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3500 /** This class is used to resolve server hostnames during /connect and autoconnect.
3501 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3502 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3503 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3504 * will have an IP address which we can then use to continue our connection.
3506 class ServernameResolver : public Resolver
3509 /** A copy of the Link tag info for what we're connecting to.
3510 * We take a copy, rather than using a pointer, just in case the
3511 * admin takes the tag away and rehashes while the domain is resolving.
3514 SpanningTreeUtilities* Utils;
3516 ServernameResolver(SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(Util)
3518 /* Nothing in here, folks */
3521 void OnLookupComplete(const std::string &result)
3523 /* Initiate the connection, now that we have an IP to use.
3524 * Passing a hostname directly to InspSocket causes it to
3525 * just bail and set its FD to -1.
3527 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3528 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3530 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3531 if (newsocket->GetFd() > -1)
3537 /* Something barfed, show the opers */
3538 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3540 Utils->DoFailOver(&MyLink);
3545 void OnError(ResolverError e, const std::string &errormessage)
3548 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3549 Utils->DoFailOver(&MyLink);
3553 /** Handle resolving of server IPs for the cache
3555 class SecurityIPResolver : public Resolver
3559 SpanningTreeUtilities* Utils;
3561 SecurityIPResolver(SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x), Utils(U)
3565 void OnLookupComplete(const std::string &result)
3567 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3568 Utils->ValidIPs.push_back(result);
3571 void OnError(ResolverError e, const std::string &errormessage)
3573 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3577 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3580 this->ReadConfiguration(true);
3581 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3584 SpanningTreeUtilities::~SpanningTreeUtilities()
3586 for (unsigned int i = 0; i < Bindings.size(); i++)
3588 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3589 ServerInstance->SE->DelFd(Bindings[i]);
3590 Bindings[i]->Close();
3591 DELETE(Bindings[i]);
3593 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3594 while (TreeRoot->ChildCount())
3596 TreeServer* child_server = TreeRoot->GetChild(0);
3597 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3600 TreeSocket* sock = child_server->GetSocket();
3601 ServerInstance->SE->DelFd(sock);
3609 void SpanningTreeUtilities::AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3611 for (unsigned int c = 0; c < list.size(); c++)
3613 if (list[c] == server)
3618 list.push_back(server);
3621 /** returns a list of DIRECT servernames for a specific channel */
3622 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3624 CUList *ulist = c->GetUsers();
3625 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3627 if (i->second->GetFd() < 0)
3629 TreeServer* best = this->BestRouteTo(i->second->server);
3631 AddThisServer(best,list);
3637 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3639 TreeServer* omitroute = this->BestRouteTo(omit);
3640 if ((command == "NOTICE") || (command == "PRIVMSG"))
3642 if (params.size() >= 2)
3645 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3647 params[0] = params[0].substr(1, params[0].length()-1);
3649 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3651 // special routing for private messages/notices
3652 userrec* d = ServerInstance->FindNick(params[0]);
3655 std::deque<std::string> par;
3656 par.push_back(params[0]);
3657 par.push_back(":"+params[1]);
3658 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3662 else if (*(params[0].c_str()) == '$')
3664 std::deque<std::string> par;
3665 par.push_back(params[0]);
3666 par.push_back(":"+params[1]);
3667 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3672 chanrec* c = ServerInstance->FindChan(params[0]);
3675 std::deque<TreeServer*> list;
3676 GetListOfServersForChannel(c,list);
3677 unsigned int lsize = list.size();
3678 for (unsigned int i = 0; i < lsize; i++)
3680 TreeSocket* Sock = list[i]->GetSocket();
3681 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3683 Sock->WriteLine(data);
3691 unsigned int items =this->TreeRoot->ChildCount();
3692 for (unsigned int x = 0; x < items; x++)
3694 TreeServer* Route = this->TreeRoot->GetChild(x);
3695 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3697 TreeSocket* Sock = Route->GetSocket();
3699 Sock->WriteLine(data);
3705 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3707 TreeServer* omitroute = this->BestRouteTo(omit);
3708 std::string FullLine = ":" + prefix + " " + command;
3709 unsigned int words = params.size();
3710 for (unsigned int x = 0; x < words; x++)
3712 FullLine = FullLine + " " + params[x];
3714 unsigned int items = this->TreeRoot->ChildCount();
3715 for (unsigned int x = 0; x < items; x++)
3717 TreeServer* Route = this->TreeRoot->GetChild(x);
3718 // Send the line IF:
3719 // The route has a socket (its a direct connection)
3720 // The route isnt the one to be omitted
3721 // The route isnt the path to the one to be omitted
3722 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3724 TreeSocket* Sock = Route->GetSocket();
3726 Sock->WriteLine(FullLine);
3732 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3734 std::string FullLine = ":" + prefix + " " + command;
3735 unsigned int words = params.size();
3736 for (unsigned int x = 0; x < words; x++)
3738 FullLine = FullLine + " " + params[x];
3740 unsigned int items = this->TreeRoot->ChildCount();
3741 for (unsigned int x = 0; x < items; x++)
3743 TreeServer* Route = this->TreeRoot->GetChild(x);
3744 if (Route && Route->GetSocket())
3746 TreeSocket* Sock = Route->GetSocket();
3748 Sock->WriteLine(FullLine);
3754 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3756 std::string spfx = prefix;
3757 std::string scmd = command;
3758 return this->DoOneToMany(spfx, scmd, params);
3761 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3763 std::string spfx = prefix;
3764 std::string scmd = command;
3765 return this->DoOneToAllButSender(spfx, scmd, params, omit);
3768 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
3770 TreeServer* Route = this->BestRouteTo(target);
3773 std::string FullLine = ":" + prefix + " " + command;
3774 unsigned int words = params.size();
3775 for (unsigned int x = 0; x < words; x++)
3777 FullLine = FullLine + " " + params[x];
3779 if (Route && Route->GetSocket())
3781 TreeSocket* Sock = Route->GetSocket();
3783 Sock->WriteLine(FullLine);
3793 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
3795 ConfigReader* Conf = new ConfigReader(ServerInstance);
3798 for (int j =0; j < Conf->Enumerate("bind"); j++)
3800 std::string Type = Conf->ReadValue("bind","type",j);
3801 std::string IP = Conf->ReadValue("bind","address",j);
3802 int Port = Conf->ReadInteger("bind","port",j,true);
3803 if (Type == "servers")
3805 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), Port);
3810 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(),Port,true,10);
3811 if (listener->GetState() == I_LISTENING)
3813 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), Port);
3814 Bindings.push_back(listener);
3818 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3822 ServerInstance->Log(DEBUG,"Done with this binding");
3826 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3827 HideULines = Conf->ReadFlag("options","hideulines",0);
3828 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
3831 for (int j =0; j < Conf->Enumerate("link"); j++)
3834 std::string Allow = Conf->ReadValue("link","allowmask",j);
3835 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3836 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3837 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
3838 L.Port = Conf->ReadInteger("link","port",j,true);
3839 L.SendPass = Conf->ReadValue("link","sendpass",j);
3840 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3841 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3842 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3843 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3844 L.NextConnectTime = time(NULL) + L.AutoConnect;
3845 /* Bugfix by brain, do not allow people to enter bad configurations */
3846 if (L.Name != ServerInstance->Config->ServerName)
3848 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3850 ValidIPs.push_back(L.IPAddr);
3853 ValidIPs.push_back(Allow);
3855 /* Needs resolving */
3857 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3861 SecurityIPResolver* sr = new SecurityIPResolver(this, ServerInstance, L.IPAddr, L);
3862 ServerInstance->AddResolver(sr);
3864 catch (ModuleException& e)
3866 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3870 LinkBlocks.push_back(L);
3871 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3877 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3879 else if (L.RecvPass == "")
3881 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3883 else if (L.SendPass == "")
3885 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3887 else if (L.Name == "")
3889 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3893 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3899 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
3907 class ModuleSpanningTree : public Module
3911 unsigned int max_local;
3912 unsigned int max_global;
3913 cmd_rconnect* command_rconnect;
3914 SpanningTreeUtilities* Utils;
3918 ModuleSpanningTree(InspIRCd* Me)
3919 : Module::Module(Me), max_local(0), max_global(0)
3921 Utils = new SpanningTreeUtilities(Me, this);
3923 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
3924 ServerInstance->AddCommand(command_rconnect);
3927 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3929 std::string Parent = Utils->TreeRoot->GetName();
3930 if (Current->GetParent())
3932 Parent = Current->GetParent()->GetName();
3934 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3936 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3940 ShowLinks(Current->GetChild(q),user,hops+1);
3945 ShowLinks(Current->GetChild(q),user,hops+1);
3948 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3949 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3951 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());
3954 int CountLocalServs()
3956 return Utils->TreeRoot->ChildCount();
3961 return Utils->serverlist.size();
3964 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3966 ShowLinks(Utils->TreeRoot,user,0);
3967 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3971 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3973 unsigned int n_users = ServerInstance->UserCount();
3975 /* Only update these when someone wants to see them, more efficient */
3976 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3977 max_local = ServerInstance->LocalUserCount();
3978 if (n_users > max_global)
3979 max_global = n_users;
3981 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3982 if (ServerInstance->OperCount())
3983 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3984 if (ServerInstance->UnregisteredUserCount())
3985 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3986 if (ServerInstance->ChannelCount())
3987 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3988 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3989 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3990 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3994 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3996 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4000 for (int t = 0; t < depth; t++)
4002 matrix[line][t] = ' ';
4005 // For Aligning, we need to work out exactly how deep this thing is, and produce
4006 // a 'Spacer' String to compensate.
4009 memset(spacer,' ',40);
4010 if ((40 - Current->GetName().length() - depth) > 1) {
4011 spacer[40 - Current->GetName().length() - depth] = '\0';
4020 if (ServerInstance->clientlist.size() == 0) {
4021 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4026 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
4028 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4029 totusers += Current->GetUserCount();
4031 strlcpy(&matrix[line][depth],text,80);
4033 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4035 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4039 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4044 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4050 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4054 /* Remote MOTD, the server is within the 1st parameter */
4055 std::deque<std::string> params;
4056 params.push_back(parameters[0]);
4058 /* Send it out remotely, generate no reply yet */
4059 TreeServer* s = Utils->FindServerMask(parameters[0]);
4062 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4066 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4073 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4077 /* Remote ADMIN, the server is within the 1st parameter */
4078 std::deque<std::string> params;
4079 params.push_back(parameters[0]);
4081 /* Send it out remotely, generate no reply yet */
4082 TreeServer* s = Utils->FindServerMask(parameters[0]);
4085 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4089 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4096 int HandleStats(const char** parameters, int pcnt, userrec* user)
4100 /* Remote STATS, the server is within the 2nd parameter */
4101 std::deque<std::string> params;
4102 params.push_back(parameters[0]);
4103 params.push_back(parameters[1]);
4104 /* Send it out remotely, generate no reply yet */
4105 TreeServer* s = Utils->FindServerMask(parameters[1]);
4108 params[1] = s->GetName();
4109 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4113 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4120 // Ok, prepare to be confused.
4121 // After much mulling over how to approach this, it struck me that
4122 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4123 // keeping track of a ton of ascii characters, and line by line
4124 // under recursion working out where to place them using multiplications
4125 // and divisons, we instead render the map onto a backplane of characters
4126 // (a character matrix), then draw the branches as a series of "L" shapes
4127 // from the nodes. This is not only friendlier on CPU it uses less stack.
4129 void HandleMap(const char** parameters, int pcnt, userrec* user)
4131 // This array represents a virtual screen which we will
4132 // "scratch" draw to, as the console device of an irc
4133 // client does not provide for a proper terminal.
4135 float totservers = 0;
4136 char matrix[128][80];
4137 for (unsigned int t = 0; t < 128; t++)
4139 matrix[t][0] = '\0';
4142 // The only recursive bit is called here.
4143 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4144 // Process each line one by one. The algorithm has a limit of
4145 // 128 servers (which is far more than a spanning tree should have
4146 // anyway, so we're ok). This limit can be raised simply by making
4147 // the character matrix deeper, 128 rows taking 10k of memory.
4148 for (int l = 1; l < line; l++)
4150 // scan across the line looking for the start of the
4151 // servername (the recursive part of the algorithm has placed
4152 // the servers at indented positions depending on what they
4154 int first_nonspace = 0;
4155 while (matrix[l][first_nonspace] == ' ')
4160 // Draw the `- (corner) section: this may be overwritten by
4161 // another L shape passing along the same vertical pane, becoming
4162 // a |- (branch) section instead.
4163 matrix[l][first_nonspace] = '-';
4164 matrix[l][first_nonspace-1] = '`';
4166 // Draw upwards until we hit the parent server, causing possibly
4167 // other corners (`-) to become branches (|-)
4168 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4170 matrix[l2][first_nonspace-1] = '|';
4174 // dump the whole lot to the user. This is the easy bit, honest.
4175 for (int t = 0; t < line; t++)
4177 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4179 float avg_users = totusers / totservers;
4180 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);
4181 user->WriteServ("007 %s :End of /MAP",user->nick);
4185 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4187 TreeServer* s = Utils->FindServerMask(parameters[0]);
4190 if (s == Utils->TreeRoot)
4192 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4195 TreeSocket* sock = s->GetSocket();
4198 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4199 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4200 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
4201 ServerInstance->SE->DelFd(sock);
4207 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
4212 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4217 int HandleTime(const char** parameters, int pcnt, userrec* user)
4219 if ((IS_LOCAL(user)) && (pcnt))
4221 TreeServer* found = Utils->FindServerMask(parameters[0]);
4224 // we dont' override for local server
4225 if (found == Utils->TreeRoot)
4228 std::deque<std::string> params;
4229 params.push_back(found->GetName());
4230 params.push_back(user->nick);
4231 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4235 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4241 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4243 if ((IS_LOCAL(user)) && (pcnt > 1))
4245 userrec* remote = ServerInstance->FindNick(parameters[1]);
4246 if ((remote) && (remote->GetFd() < 0))
4248 std::deque<std::string> params;
4249 params.push_back(parameters[1]);
4250 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4255 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4256 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4263 void DoPingChecks(time_t curtime)
4265 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4267 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4268 TreeSocket* sock = serv->GetSocket();
4271 if (curtime >= serv->NextPingTime())
4273 if (serv->AnsweredLastPing())
4275 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4276 serv->SetNextPingTime(curtime + 60);
4280 // they didnt answer, boot them
4281 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4282 sock->Squit(serv,"Ping timeout");
4283 ServerInstance->SE->DelFd(sock);
4293 void ConnectServer(Link* x)
4297 /* Do we already have an IP? If so, no need to resolve it. */
4298 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4300 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
4301 if (newsocket->GetFd() > -1)
4303 /* Handled automatically on success */
4307 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4309 Utils->DoFailOver(x);
4316 ServernameResolver* snr = new ServernameResolver(Utils, ServerInstance,x->IPAddr, *x);
4317 ServerInstance->AddResolver(snr);
4319 catch (ModuleException& e)
4321 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4322 Utils->DoFailOver(x);
4327 void AutoConnectServers(time_t curtime)
4329 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4331 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4333 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4334 x->NextConnectTime = curtime + x->AutoConnect;
4335 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4336 if (x->FailOver.length())
4338 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4341 /* The failover for this server is currently a member of the network.
4342 * The failover probably succeeded, where the main link did not.
4343 * Don't try the main link until the failover is gone again.
4350 // an autoconnected server is not connected. Check if its time to connect it
4351 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4352 this->ConnectServer(&(*x));
4358 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4360 // we've already checked if pcnt > 0, so this is safe
4361 TreeServer* found = Utils->FindServerMask(parameters[0]);
4364 std::string Version = found->GetVersion();
4365 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4366 if (found == Utils->TreeRoot)
4368 std::stringstream out(ServerInstance->Config->data005);
4369 std::string token = "";
4370 std::string line5 = "";
4371 int token_counter = 0;
4376 line5 = line5 + token + " ";
4379 if ((token_counter >= 13) || (out.eof() == true))
4381 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4390 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4395 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4397 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4399 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4401 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4404 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);
4405 ConnectServer(&(*x));
4410 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());
4415 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4419 virtual int OnStats(char statschar, userrec* user, string_list &results)
4421 if (statschar == 'c')
4423 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4425 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" C *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].EncryptionKey != "" ? 'e' : '-')+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
4426 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4428 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4429 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);
4435 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4437 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4441 if (command == "CONNECT")
4443 return this->HandleConnect(parameters,pcnt,user);
4445 else if (command == "STATS")
4447 return this->HandleStats(parameters,pcnt,user);
4449 else if (command == "MOTD")
4451 return this->HandleMotd(parameters,pcnt,user);
4453 else if (command == "ADMIN")
4455 return this->HandleAdmin(parameters,pcnt,user);
4457 else if (command == "SQUIT")
4459 return this->HandleSquit(parameters,pcnt,user);
4461 else if (command == "MAP")
4463 this->HandleMap(parameters,pcnt,user);
4466 else if ((command == "TIME") && (pcnt > 0))
4468 return this->HandleTime(parameters,pcnt,user);
4470 else if (command == "LUSERS")
4472 this->HandleLusers(parameters,pcnt,user);
4475 else if (command == "LINKS")
4477 this->HandleLinks(parameters,pcnt,user);
4480 else if (command == "WHOIS")
4485 return this->HandleRemoteWhois(parameters,pcnt,user);
4488 else if ((command == "VERSION") && (pcnt > 0))
4490 this->HandleVersion(parameters,pcnt,user);
4497 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4499 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4501 // this bit of code cleverly routes all module commands
4502 // to all remote severs *automatically* so that modules
4503 // can just handle commands locally, without having
4504 // to have any special provision in place for remote
4505 // commands and linking protocols.
4506 std::deque<std::string> params;
4508 for (int j = 0; j < pcnt; j++)
4510 if (strchr(parameters[j],' '))
4512 params.push_back(":" + std::string(parameters[j]));
4516 params.push_back(std::string(parameters[j]));
4519 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4520 Utils->DoOneToMany(user->nick,command,params);
4524 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4526 TreeServer* s = Utils->FindServer(servername);
4529 description = s->GetDesc();
4533 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4535 if (IS_LOCAL(source))
4537 std::deque<std::string> params;
4538 params.push_back(dest->nick);
4539 params.push_back(channel->name);
4540 Utils->DoOneToMany(source->nick,"INVITE",params);
4544 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4546 std::deque<std::string> params;
4547 params.push_back(chan->name);
4548 params.push_back(":"+topic);
4549 Utils->DoOneToMany(user->nick,"TOPIC",params);
4552 virtual void OnWallops(userrec* user, const std::string &text)
4556 std::deque<std::string> params;
4557 params.push_back(":"+text);
4558 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4562 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4564 if (target_type == TYPE_USER)
4566 userrec* d = (userrec*)dest;
4567 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4569 std::deque<std::string> params;
4571 params.push_back(d->nick);
4572 params.push_back(":"+text);
4573 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4576 else if (target_type == TYPE_CHANNEL)
4580 chanrec *c = (chanrec*)dest;
4583 std::string cname = c->name;
4585 cname = status + cname;
4586 std::deque<TreeServer*> list;
4587 Utils->GetListOfServersForChannel(c,list);
4588 unsigned int ucount = list.size();
4589 for (unsigned int i = 0; i < ucount; i++)
4591 TreeSocket* Sock = list[i]->GetSocket();
4593 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4598 else if (target_type == TYPE_SERVER)
4602 char* target = (char*)dest;
4603 std::deque<std::string> par;
4604 par.push_back(target);
4605 par.push_back(":"+text);
4606 Utils->DoOneToMany(user->nick,"NOTICE",par);
4611 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4613 if (target_type == TYPE_USER)
4615 // route private messages which are targetted at clients only to the server
4616 // which needs to receive them
4617 userrec* d = (userrec*)dest;
4618 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4620 std::deque<std::string> params;
4622 params.push_back(d->nick);
4623 params.push_back(":"+text);
4624 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4627 else if (target_type == TYPE_CHANNEL)
4631 chanrec *c = (chanrec*)dest;
4634 std::string cname = c->name;
4636 cname = status + cname;
4637 std::deque<TreeServer*> list;
4638 Utils->GetListOfServersForChannel(c,list);
4639 unsigned int ucount = list.size();
4640 for (unsigned int i = 0; i < ucount; i++)
4642 TreeSocket* Sock = list[i]->GetSocket();
4644 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4649 else if (target_type == TYPE_SERVER)
4653 char* target = (char*)dest;
4654 std::deque<std::string> par;
4655 par.push_back(target);
4656 par.push_back(":"+text);
4657 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4662 virtual void OnBackgroundTimer(time_t curtime)
4664 AutoConnectServers(curtime);
4665 DoPingChecks(curtime);
4668 virtual void OnUserJoin(userrec* user, chanrec* channel)
4670 // Only do this for local users
4673 std::deque<std::string> params;
4675 params.push_back(channel->name);
4676 // set up their permissions and the channel TS with FJOIN.
4677 // All users are FJOINed now, because a module may specify
4678 // new joining permissions for the user.
4680 params.push_back(channel->name);
4681 params.push_back(ConvToStr(channel->age));
4682 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4683 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4687 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4689 // only occurs for local clients
4690 if (user->registered != REG_ALL)
4692 std::deque<std::string> params;
4693 params.push_back(newhost);
4694 Utils->DoOneToMany(user->nick,"FHOST",params);
4697 virtual void OnChangeName(userrec* user, const std::string &gecos)
4699 // only occurs for local clients
4700 if (user->registered != REG_ALL)
4702 std::deque<std::string> params;
4703 params.push_back(gecos);
4704 Utils->DoOneToMany(user->nick,"FNAME",params);
4707 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4711 std::deque<std::string> params;
4712 params.push_back(channel->name);
4713 if (partmessage != "")
4714 params.push_back(":"+partmessage);
4715 Utils->DoOneToMany(user->nick,"PART",params);
4719 virtual void OnUserConnect(userrec* user)
4721 char agestr[MAXBUF];
4724 std::deque<std::string> params;
4725 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4726 params.push_back(agestr);
4727 params.push_back(user->nick);
4728 params.push_back(user->host);
4729 params.push_back(user->dhost);
4730 params.push_back(user->ident);
4731 params.push_back("+"+std::string(user->FormatModes()));
4732 params.push_back(user->GetIPString());
4733 params.push_back(":"+std::string(user->fullname));
4734 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4736 // User is Local, change needs to be reflected!
4737 TreeServer* SourceServer = Utils->FindServer(user->server);
4740 SourceServer->AddUserCount();
4746 virtual void OnUserQuit(userrec* user, const std::string &reason)
4748 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4750 std::deque<std::string> params;
4751 params.push_back(":"+reason);
4752 Utils->DoOneToMany(user->nick,"QUIT",params);
4754 // Regardless, We need to modify the user Counts..
4755 TreeServer* SourceServer = Utils->FindServer(user->server);
4758 SourceServer->DelUserCount();
4763 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4767 std::deque<std::string> params;
4768 params.push_back(user->nick);
4769 Utils->DoOneToMany(oldnick,"NICK",params);
4773 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4775 if ((source) && (IS_LOCAL(source)))
4777 std::deque<std::string> params;
4778 params.push_back(chan->name);
4779 params.push_back(user->nick);
4780 params.push_back(":"+reason);
4781 Utils->DoOneToMany(source->nick,"KICK",params);
4785 std::deque<std::string> params;
4786 params.push_back(chan->name);
4787 params.push_back(user->nick);
4788 params.push_back(":"+reason);
4789 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4793 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4795 std::deque<std::string> params;
4796 params.push_back(dest->nick);
4797 params.push_back(":"+reason);
4798 Utils->DoOneToMany(source->nick,"KILL",params);
4801 virtual void OnRehash(const std::string ¶meter)
4803 if (parameter != "")
4805 std::deque<std::string> params;
4806 params.push_back(parameter);
4807 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4809 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4811 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4812 ServerInstance->RehashServer();
4815 Utils->ReadConfiguration(false);
4818 // note: the protocol does not allow direct umode +o except
4819 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4821 virtual void OnOper(userrec* user, const std::string &opertype)
4825 std::deque<std::string> params;
4826 params.push_back(opertype);
4827 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
4831 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4833 if (IS_LOCAL(source))
4836 snprintf(type,8,"%cLINE",linetype);
4837 std::string stype = type;
4840 char sduration[MAXBUF];
4841 snprintf(sduration,MAXBUF,"%ld",duration);
4842 std::deque<std::string> params;
4843 params.push_back(host);
4844 params.push_back(sduration);
4845 params.push_back(":"+reason);
4846 Utils->DoOneToMany(source->nick,stype,params);
4850 std::deque<std::string> params;
4851 params.push_back(host);
4852 Utils->DoOneToMany(source->nick,stype,params);
4857 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4859 OnLine(source,hostmask,true,'G',duration,reason);
4862 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4864 OnLine(source,ipmask,true,'Z',duration,reason);
4867 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4869 OnLine(source,nickmask,true,'Q',duration,reason);
4872 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4874 OnLine(source,hostmask,true,'E',duration,reason);
4877 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4879 OnLine(source,hostmask,false,'G',0,"");
4882 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4884 OnLine(source,ipmask,false,'Z',0,"");
4887 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4889 OnLine(source,nickmask,false,'Q',0,"");
4892 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4894 OnLine(source,hostmask,false,'E',0,"");
4897 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4899 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4901 if (target_type == TYPE_USER)
4903 userrec* u = (userrec*)dest;
4904 std::deque<std::string> params;
4905 params.push_back(u->nick);
4906 params.push_back(text);
4907 Utils->DoOneToMany(user->nick,"MODE",params);
4911 chanrec* c = (chanrec*)dest;
4912 std::deque<std::string> params;
4913 params.push_back(c->name);
4914 params.push_back(text);
4915 Utils->DoOneToMany(user->nick,"MODE",params);
4920 virtual void OnSetAway(userrec* user)
4924 std::deque<std::string> params;
4925 params.push_back(":"+std::string(user->awaymsg));
4926 Utils->DoOneToMany(user->nick,"AWAY",params);
4930 virtual void OnCancelAway(userrec* user)
4934 std::deque<std::string> params;
4936 Utils->DoOneToMany(user->nick,"AWAY",params);
4940 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4942 TreeSocket* s = (TreeSocket*)opaque;
4945 if (target_type == TYPE_USER)
4947 userrec* u = (userrec*)target;
4948 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4952 chanrec* c = (chanrec*)target;
4953 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4958 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4960 TreeSocket* s = (TreeSocket*)opaque;
4963 if (target_type == TYPE_USER)
4965 userrec* u = (userrec*)target;
4966 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4968 else if (target_type == TYPE_OTHER)
4970 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4972 else if (target_type == TYPE_CHANNEL)
4974 chanrec* c = (chanrec*)target;
4975 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4980 virtual void OnEvent(Event* event)
4982 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4984 if (event->GetEventID() == "send_metadata")
4986 if (params->size() < 3)
4988 (*params)[2] = ":" + (*params)[2];
4989 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4991 else if (event->GetEventID() == "send_topic")
4993 if (params->size() < 2)
4995 (*params)[1] = ":" + (*params)[1];
4996 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
4997 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
4998 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5000 else if (event->GetEventID() == "send_mode")
5002 if (params->size() < 2)
5004 // Insert the TS value of the object, either userrec or chanrec
5006 userrec* a = ServerInstance->FindNick((*params)[0]);
5013 chanrec* a = ServerInstance->FindChan((*params)[0]);
5019 params->insert(params->begin() + 1,ConvToStr(ourTS));
5020 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5024 virtual ~ModuleSpanningTree()
5026 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5027 /* This will also free the listeners */
5031 virtual Version GetVersion()
5033 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5036 void Implements(char* List)
5038 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5039 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5040 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5041 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5042 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5043 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5044 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5047 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5048 * so that any activity it sees is FINAL, e.g. we arent going to send out
5049 * a NICK message before m_cloaking has finished putting the +x on the user,
5051 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5052 * the module call queue.
5054 Priority Prioritize()
5056 return PRIORITY_LAST;
5060 void SpanningTreeUtilities::DoFailOver(Link* x)
5062 if (x->FailOver.length())
5064 if (x->FailOver == x->Name)
5066 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());
5069 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5072 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5073 Creator->ConnectServer(TryThisOne);
5077 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5082 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5084 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5086 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5095 class ModuleSpanningTreeFactory : public ModuleFactory
5098 ModuleSpanningTreeFactory()
5102 ~ModuleSpanningTreeFactory()
5106 virtual Module * CreateModule(InspIRCd* Me)
5108 return new ModuleSpanningTree(Me);
5114 extern "C" void * init_module( void )
5116 return new ModuleSpanningTreeFactory;